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RSA3303A & RSA3308A Service Manual

1. Auto Tests The auto tests include the following items m Baseband flatness test m flatness test m RF flatness test m Spurious test Equipment One signal generator Item 1 Required 9 One signal generator Item 2 for RSA3308A only One 50 N N coaxial cable Item 10 One 10 dB attenuator Item 14 One GPIB cable Item 12 two required for RSA3308A One mouse Item 15 One keyboard Item 16 One SG flatness floppy disk Item 17 two required for RSA3308A Prerequisites Refer to page 4 10 RSA3303A RSA3308A esses 8888 Signal generator Item 1 Signal generator Item 2 BE e 5555 GPIB cable gt 5 GPIB cable zO A 9 oe n J Output 10 dB attenuator 50 coaxial cable J Figure 4 6 Initial test hookup 4 12 RSA3303A amp RSA3308A Service Manual Performance Tests 1 Prepare for the test a Power off the RSA3303A RSA3308A analyzer and the signal genera tors Connect the analyzer and the generator s with GPIB cable s See Figure 4 6 Connect the analyzer INPUT through a 10 dB attenuator followed by a 50 Q N N coaxial cable to the generator Item 1 output Connect a mouse and a keyboard Items 15 and 16 to the USB connectors o
2. e RF5 module Wo Iy i OL f Ij e AXEL LZ e ff 6 13 RSA3303A amp RSA3308A Service Manual Figure 6 3 RF modules Removal and Installation Procedures Stopper bracket Floppy disk drive Front connection board CPU board Disk bracket Hard disk drive Shield bracket Shield bracket RSA3303A amp RSA3308A Service Manual Figure 6 4 CPU board and disk modules 6 14 Removal and nstallation Procedures x71 lt A20 DDC board SE A30 Trigger board optional lt lt A70 DC power board 4 At A40 Memory board 3 O A50 Mother board Figure 6 5 Mother board and its daughter boards 6 15 RSA3303A amp RSA3308A Service Manual Removal and Installation Procedures Power supply 1 Power supply 2 Insulator Shield bracket fd Mer DA A DA A71 AC power board
3. See Figure 10 7 for details Ww So gt gt S JE E 7 3 277 d of 2 v T 7 f f Figure 10 6 Mother board and its daughter boards 2 10 15 RSA3303A amp RSA3308A Service Manual Replaceable Parts Replaceable parts list Fig amp index number 10 7 1 2 28 4 5 6 J 8 10 16 Tektronix part number 119 6946 XX 119 6947 XX 348 144 129 593 210 A014 XX 210 0949 XX 211 A170 XX 348 1656 XX 211 A275 XX 407 A733 XX 348 1472 119 5953 671 5799 211 0751 407 A731 XX 348 1788 XX 348 1656 XX 174 4940 XX 174 4941 XX 174 4938 XX 174 B987 XX 174 B986 XX 174 4939 XX 174 4912 XX 174 B993 XX 174 B991 XX Serial No effective Serial No discont d Qty po A A A 7 CM 8 CM 4 CM Name amp description HDD UNIT 2 5 IDE I F O S AND F W INSTALLED RSA3303A HDD UNIT 2 5 IDE I F 0 S AND F W INSTALLED RSA3308A DUMPER SUPPORT PS 308 WASHER PLAIN 6 BRS NI PL WASHER FLAT 0 141IDX0 50DX0 062 BRS NP SCREW MACHINE M3X15MM L PNH STL ZN CM1 W M PLAIN amp SPLIT WASHER GASKET SHIELD CONDUCTIVE URETHAN FOAM W ADHESIVE TAPE BACKSIDE SCREW MACHINE M2 6X5MM L PNH STL ZN C CROSS REC W K PLAI
4. Stopper bracket Main chassis Side panel Shield bracket Figure 6 10 Chassis modules 6 20 RSA3303A amp RSA3308A Service Manual Removal and nstallation Procedures Access Procedure Locate the module to be removed in Figure 6 2 to 6 10 Is the module in Figure 6 2 No Yes Do the procedures Line Cord and Cabinet on page 6 22 Is the module in Figure 6 3 No Yes Is the module in Figure 6 4 No Yes Is the module in Figure 6 5 No Yes When you have identified the module to be removed for service read General Instructions found earlier in this section Then use the flowchart in Figure 6 11 to determine which procedures to use for removing the module The removal procedures end with reinstallation instructions Procedures for External Modules Line cord p 6 22 Cabinet p 6 22 Front cushion p 6 23 Cabinet modules p 6 24 Procedures for RF Modules RF2 module RF3 module RF4 module RF5 module Procedures for CPU Board and Disk Modules CPU board p 6 31 Hard disk drive p 6 33 Floppy disk drive p 6 35 A62 Front connection board 6 35 Procedures for Mother Board and its Daughter boards A10 A D board p 6 36 A20 DDC board p
5. Figure 10 5 Mother board and its daughter boards 1 10 13 RSA3303A amp RSA3308A Service Manual Replaceable Parts Replaceable parts list Fig amp index number 10 6 1 2 3 10 14 Tektronix part number 211 1028 XX 407 A683 XX 348 1276 211 0871 211 0871 211 0871 407 4988 351 A165 XX 407 4987 XX 211 A171 XX 211 0871 XX 407 A690 XX 119 6925 Serial effective Serial No discont d Qty 32 CM Name amp description SCREW MACHINE M4X8MM L PNH STL ZN C PL CROSS REC W FLAT amp LOCK WASHER BRACKET SHIELD PC BOARD GASKET SHIELD CONDUCTIVE FOAM STRIP 3 3MM X 4 8MM W ADHESIVE TAPE 1M L SCREW MACHINE M3X6MM L PNH STL MFZN C CROSS REC W FLAT amp LOCK WASHER SCREW MACHINE M3X6MM L PNH STL MFZN C CROSS REC W FLAT amp LOCK WASHER SCREW MACHINE M3X6MM L PNH STL MFZN C CROSS REC W FLAT amp LOCK WASHER BRACKET STOPPER CPU BOARD GUIDE CKT BD NYLON BRACKET SUPPORT MEMORY SCREW MACHINE M3X12MM L PNH STL ZN CM1 W K PLAIN amp SPLIT WASHER SCREW MACHINE M3X6MM L PNH STL MFZN C CROSS REC W FLAT amp LOCK WASHER BRACKET STOPPER PC BOARD CKT BD ASSY CPU BD ASSY1196924XX MEMORY119B117XX A63 BD 6715800XX MECHA PARTS RSA3303A amp RSA3308A Service Manual Replaceable Parts
6. zO RSA3303A RSA3308A jm 80 for Option 03 eeeeee RSA3303A RSA3308A rear Waveform generator O o ooo GPIB cable O 50 teminators to and Q INPUTS CH2 to 50 Q BNC Q INPUT coaxial cables CH1 to INPUT Figure 5 8 Initial test hookup 5 14 RSA3303A amp RSA3308A Service Manual Adjustment Procedures 1 Prepare for the adjustment a Power off the RSA3303A RSA3308A analyzer the signal generator s and the waveform generator Option 03 only b Connect the analyzer and the generator s with GPIB cables See Figure 5 8 c Connect the signal generator Item 1 output through 10 dB attenuator Item 11 followed by a 50 Q N N coaxial cable to the analyzer INPUT d Opbption 03 only m Connect CHI and CH2 of the waveform generator Item 3 through 50 Q BNC coaxial cables Item 7 to I INPUT and Q INPUT on the rear panel of the analyzer respectively B Connect 50 Q terminators Item 10 to I INPUT and Q INPUT on the rear panel of the analyzer Insert the AWG520 setup floppy disk Item 16 to the disk drive of the waveform ge
7. OUO OU JO OO O C C9C C JC OO O OO Signal generator Output 50 coaxial cable Figure 4 15 Initial test hookup 1 Prepare for the test a Initialize the analyzer m Press the SYSTEM key on the front panel m Press the Reset All to Factory Defaults side key b Modify the default controls Press the SPAN key on the front panel m With the Span side key set the span to 10 MHz using the general purpose knob Press the RBW FFT key on the front panel m Press the RBW FFT side key to select Man m With the RBW side key set the value to 50 kHz using the general purpose knob 4 38 RSA3303A amp RSA3308A Service Manual Performance Tests m Pressthe TRACE AVG key on the front panel m Press the Trace 1 Type side key and select Average m Press the Number Of Averages side key and set the value to 50 m Pressthe MARKER SETUP key m Press the Markers side key to select Delta Set the generator controls d Hook up the signal generator Connect the generator output through a 50 Q N N coaxial cable to the analyzer INPUT See Figure 4 15 2 Check spurious response a Modify the generator controls Set the generator output frequency to the value as shown in Table 44 initially 10 MHz b
8. 0000 UUUUU 0000 al Figure 4 16 Initial test hookup 1 Prepare for the test Initialize the analyzer Press the SYSTEM key on the front panel Press the Reset All to Factory Defaults side key b Modify the analyzer controls RSA3303A amp RSA3308A Service Manual Press the FREQUENCY CHANNEL key on the front panel With the Center Freq side key set the frequency to 10 MHz using the general purpose knob Press the SPAN key on the front panel With the Span side key set the span to 1 MHz using the general purpose knob Press the AMPLITUDE key on the front panel With the Ref Level side key set the level to 30 dBm using the general purpose knob Press the RBW FFT key on the front panel Press the RBW FFT side key to select Man With the RBW side key set the value to 10 kHz using the general purpose knob 4 41 Performance Tests Press the TRACE AVG key on the front panel Press the Trace 1 Type side key and select Average Press the Number Of Averages side key and set the value to 50 Press MEASURE Channel Power Press MEAS SETUP Channel Bandwidth and set the value to 1 MHz using the general purpose knob 2 Check noise in the baseband Read the measurement result of Density at the bottom of the screen Check that the value is 151 dBm Hz or less 3 Check n
9. Initial hookup for setting up the power meter and Hookup for calibrating the power sensor Hookup for setting the signal generator output Hookup for checking the absolute amplitude accuracy Initial test hookup Initial test hookup Initial test hookup Initial test hookup Initial test hookup Initial test hookup Hookup for storing the cal factors in the power meter Initial test hookup Hookup for calibrating the power sensor UNCAL display oa acp RR RC RRUEHOE E E38 9 0 92879 978 06 9108 0 Calibration menu COnterOUSel bees 4 12 4 21 4 22 4 23 4 23 4 24 4 26 4 29 4 35 4 38 4 41 4 44 5 5 5 8 5 10 5 11 5 12 5 13 Table of Contents vi Figure 5 8 Figure 5 9 Figure 5 10 Figure 5 11 Figure 5 12 Figure 6 1 Figure 6 2 Figure 6 3 Figure 6 4 Figure 6 5 Figure 6 6 Figure 6 7 Figure 6 8 Figure 6 9 Figure 6 10 Figure 6 11 Figure 6 12 Figure 6 13 Figure 6 14 Figure 6 15 Figure 6 16 Figure 6 17 Figure 6 18 Figure 6 19 Figure 6 20 Figure 6 21 Figure 6 22 Figure 6 23 Figure 6 24 Figure 6 25 Figure 6
10. Tektronix RSA 3308A 03 8 14 28 37 PAUSE MARKER SETUP X J E sest Frequency 100 MHz Peak value at the selected marker Cancel Back Span 20 kHz I OUS s Select Marker Input Att 20 dB Trace 2 marker 99 997 MHz 62 39 dBm 85 41 dBm Hz 1 2 3 kHz Marker X lt Marker 1 39 99 IM Peak difference Off Single Delta Reference Cursor to Marker X 10 dB Reference Cursor Marker 2 G Selected Marker Off Step Size Marker X 20 dim m Center 100 MHz Span 20 kHz of 2 Spectrum Analyzer Measurement Off 9 Marker X Position MHz 99 997 Figure 2 22 Searching for the peak 7 Press the Markers side key to select Off Both markers disappear RSA3303A amp RSA3308A Service Manual 2 21 Operating Instructions Using Averaging and Comparison Displays This section describes how to use the averaging function which displays the waveform with reduced noise The averaged waveform can be displayed with the original waveform Averaging There are several averaging methods select RMS Root Mean Square in this example 1 Press the TRACE AVG key IAI RBW AMPLITUDE TIMING et TRACE AVG key MEAS MEASURE SETUP 2 Press Trace Type side k
11. xvi Finding Other Information xvi INEPOGUCHIION xvii Performance Chock T exi ERE SIM PESE DEREN xvii SA aed ias aaa xvii Specifications Product OVerVIOW 352222222 xm usa 1 1 gon 1 1 Applicaton o ibo ar won ne wee ot 1 2 Difference between RSA3303A and RSA3308A 1 2 Real Mme ot PUER 1 3 TT TOTO ETT 1 6 Specifications 1 9 Performance COnCINOUs ax acid dr ee pn ctn up e RED PS RS 1 9 Electical Chap t i les sose craro md Rte tuse ES eos ee NR u 1 10 Physical Bardc fe ERRTICS serso irat md Inde tunt I 1 23 Environmental Charaqeterishes seare uh urne t per Tu parv ex ac 1 23 Operating Information Installanion AE 2 1 Supplying Operating Power 2 1 Operating Environment 2 3 Applying Power 2 4 Setting Up the Stand 2 7 Powering Off the Analyzer 2 8 OSEE
12. 9 7 Figure 10 1 External modules 10 5 Figure 10 2 Front panel assembly 1 10 7 Figure 10 3 Front panel assembly 2 10 9 Figure 10 4 RF modules 10 11 Figure 10 5 Mother board and its daughter boards 1 10 13 Figure 10 6 Mother board and its daughter boards 2 10 15 Figure 10 7 Disk modules 10 17 Figure 10 8 Bottom modules Power supply 10 19 Figure 10 9 Bottom modules RFI RSA3303A 10 21 Figure 10 10 Bottom modules RSA3308A 10 23 Figure 10 11 Bottom modules Interconnection 10 25 Figure 10 12 Chassis modules 1 10 27 Figure 10 13 Chassis modules 2 10 29 Figure 10 14 Rackmount 1 10 31 Figure 10 15 Rackmount 2 10 33 RSA3303A amp RSA3308A Service Manual vii Table of Contents List of Tables viii Table 1 1 Frequency a 1 10 Table 1 2 Spectrum purity 1 10 Table 1 3 Noise sideband 1 11 Table E INOW uus ues ES ene NOR RUE S 3 048 ae eeu 1 12 Table 1 5 Amplitude
13. Power reference output Figure 5 3 Hookup for calibrating the power sensor 9 8 RSA3303A amp RSA3308A Service Manual Adjustment Procedures b Press the Sensor Cal side key to perform zero adjustment and calibra tion for the sensor 5 Perform the flatness measurement for the generator a Modify the hookup Connect the signal generator output through an N N coaxial cable followed by a 10 dB attenuator and an N adapter to the power sensor input See Figure 5 2 on page 5 7 again b Insert a floppy disk to the disk drive of the analyzer for storing the flatness data c Press the Measurement side key to perform the flatness measurement When the measurement has been completed the flatness data 1 saved to the file s on the floppy disk sgrflflatness cal for the Band setting of 230 and Low serf2flatness cal for the Band setting of High serf3flatness cal for the Band setting of High 6 Disconnect the hookup a Remove the floppy disk by pressing the eject button b Turn off the signal generator power meter and analyzer c Disconnect the GPIB cables d Disconnect the power sensor and the N N cable Setting Up The auto calibration for the analyzer with Option 03 IQ input needs the Waveform Generator AWG520 waveform generator Item 3 The waveform files must be installed Option 03 Only from the AWG520 Setup Disk floppy disk Ite
14. O J120 J110 B D 5 P 5 j P A100 Interconnection board e Figure 6 23 RF1 modules removal 1 RSA3303A amp RSA3308A Service Manual 6 49 Removal and Installation Procedures Step Attenuator 2 for RSA3308A Input Relay and Step Attenuator 1 and 2 6 50 for RSA3303A 1 Assemble equipment and locate module to be removed You will need a 1 Phillips screwdriver Items 1 and 2 and a 6 inch wrench Item 11 Locate the step attenuator 2 in the locator diagram Bottom modules RF1 Figure 6 8 page 6 18 2 Orient the analyzer Set the analyzer so its top is down on the work surface and its left side is facing you 3 Remove the step attenuator 2 See Figure 6 23 Also see Figure 6 37 for cable interconnection a Using a 26 inch wrench disconnect SMA cables W105 and W122 on the step attenuator 2 Unplug the cable W117 on the step attenuator 2 Using a 1 Phillips screwdriver remove the four screws securing the step attenuator 2 to the main chassis Lift up and remove the attenuator 4 Reinstallation Reverse step 3 to reinstall the step attenuator 2 1 Assemble equipment and locate module to be removed a You will nee
15. the spectrum measured as follows Frequency 10 MHz 10 Hz Amplitude 5 dBm Yes No Replace RF5 module Figure 6 34 Troubleshooting procedure 3 Signal path Cont RSA3303A amp RSA3308A Service Manual 6 71 Troubleshootine From page 6 71 To page 6 73 Re connect the W32 cable Unplug the coaxial cable W31 on the RF3 module See Figure 6 35 Using another spectrum analyzer measure the output at the connector Is the spectrum measured as follows Frequency 39 MHz 10 Hz Amplitude 20 dBm No Yes Replace 10 A D board or A20 DDC board Unplug the coaxial cable W207 on the RF2 module See Figure 6 35 Using another spectrum analyzer measure the output at the connector Is the spectrum measured as follows Frequency 39 MHz 10 Hz Amplitude 18 dBm No Yes Replace RF5 module Unplug the coaxial cable W208 on the RF5 module See Figure 6 35 Using another spectrum analyzer measure the output at the connector Is the spectrum measured as follows Frequency 383 MHz 10 Hz Amplitude 5 dBm Yes Unplug the coaxial cable W201 on the RF3 module See Figure 6 35 Using another spectrum analyzer measure the output at the connector the spectrum measured as follows Frequency 4232 MHz 10 Hz Amplitude 33 dBm No Check gain and offset values of the RF3 module in the service
16. 1 12 Table 1 6 Dynamic range 1 13 Table 1 7 Spurious response 1 14 Table 1 8 Acquisition 1 15 Table 1 9 Sampling rale 1 15 Table 1 10 Frame time 1 16 Table 1 11 Digital demodulation Option 21 only 1 16 Table 1 12 Analog demodulation 1 18 Table 1 13 RBW Resolution Bandwidth 1 19 Table 1 14 Trigger uie a PRI SCR Sce 1 20 Table 1 15 Measurement function 1 20 Table 1 16 Display wkse 4d S V Saws 1 21 Table 1 17 Marker trace and display line 1 21 Table 1 18 Controller and interface 1 21 Table 1 19 Power requirements 1 22 Table 1 20 Power connector 1 22 Table 1 21 Physical characteristics 1 23 Table 1 22 Environmental characteristics 1 23 Table 1 23 Certifications and compliances 1 24 Table 2 1 Power cord conductor identification 2 1 Table 2 2 Power cord identification 2 2 Table 4 1 Span and RBW 4 6 Table 4 2 Internal diagnostic
17. J J J J J 000000000 J i Ss s u u lt RF INPUT J N type connector i Figure 2 7 Cable connection 2 Setthe signal generator as follows Center frequency 100 MHz Output level 10 dBm Modulation type AM Modulation source Internal 10 kHz Modulation depth 50 2 12 RSA3303A amp RSA3308A Service Manual Operating Instructions Applying the Power 1 Apply power to the signal generator 2 Turn on the principal power switch PRINCIPAL POWER SWITCH on the rear panel as shown in Figure 2 8 The orange LED on the front panel lights PE jJ 2 Principal power switch Figure 2 8 Principal power switch rear panel 3 Turn the power switch ON STANDBY on the front panel as shown in Figure 2 9 J f L ETIN 000000000 Power switch LED IOl J Figure 2 9 Power switch ON STANDBY RSA3303A amp
18. V Input attenuator setting uncertainty Level linearity in display range Channel power measurement accuracy for W CDMA signal at 20 to 30 C Typical Table 1 6 Dynamic range Characteristics 1 dB compression input Second harmonic distortion 30 dBm tone at input mixer Description 0 5 dB Baseband 1 2 dB RF RF1 1 7 dB RF2 RSA3308A only 1 7 dB RF3 RSA3308A only 0 3 dB 100 kHz to 20 MHz 0 5 dB 10 MHz to 3 GHz 0 5 dB 10 MHz to 3 5 GHz RSA3308A only 1 0 dB 3 5 GHz to 6 5 GHz RSA3308A only 1 0 dB 5 GHz to 8 GHz RSA3308A only 0 7 dB Baseband 1 5 dB RF RF1 2 0 dB RF2 RSA3308A only 2 0 dB RF3 RSA3308A only 0 3 dB Baseband at 10 MHz 10 dBm signal 0 5 dB at 50 MHz 20 dBm signal 0 5 dB at 50 MHz 0 2 dB 0 to 40 dBis 0 2 dB 0 to 50 dBfs Typical 0 12 dB 0 to 50 dBfs Typical 0 6 dB Signal frequency 1900 to 2200 MHz Signal power 10 to 30 dBm HF attenuation 0 to 20 dB After Auto Level operation at 10 MHz span Description 2 dBm RF attenuation 0 dB 2 GHz 56 dBc 10 MHz to 1500 MHz 56 dBc 10 MHz to 1750 MHz RSA3308A only 3rd order intermodulation distortion Reference level 5 dBm RF attenuation Adjusted Total signal power 7 dBm Center frequency 2 GHz 100 MHz to 3 GHz 3 GHz to 8 GHz RSA3308A only Displayed average noise level 74 dBc 74 dBc 72 dBc 144 dBm Hz 100 Hz to 10 kHz 151 dBm Hz 1
19. 106 FDD J102 16 HDD A62 Front connection board Figure 6 17 Disk module removal 6 34 RSA3303A amp RSA3308A Service Manual Removal and nstallation Procedures Floppy Disk Drive 1 Assemble equipment and locate module to be removed a You will need a screwdriver with size Phillips 1 and 2 tips Items 1 2 and 3 b Locate the floppy disk drive in the CPU board and disk modules diagram Figure 6 4 page 6 14 2 Remove the disk bracket containing the floppy disk drive using step 4 in the hard disk drive removal procedure on page 6 33 3 Remove the floppy disk drive See Figure 6 17 a Unplug the floppy driver connector ribbon interconnect cable that connects the disk drive to J106 on the A62 Front connection board b Using a screwdriver with size Phillips 1 tip remove the four screws securing the disk drive to the bracket Pull out the disk drive 4 Reinstallation Reverse steps 2 and 3 to reinstall the floppy disk drive x A62 Front Connection Board Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items 1 and 3 b Locate the A62 Front connection board in the CPU board and disk modules diagram Figure 6 4 page 6 14 2 Remove the
20. 3 4 PAO Memory Board M 3 5 Lower SUDDD 02 3 82 982 5 2r asus kausa ass eR ees E eae 3 5 Standby Power and On Standby Switch 3 6 DOO Moher DOSE 3 6 POO Pron Key DOGDU g pause kausa ss qa puquya 3 6 A02 From Connection Board EEEE REA suwakuq 3 6 Performance Verification an cnn 4 2 Briel PFOced res dram ora RR arde 4 3 Functional COR UE 4 4 Bi 4 8 Periormance TeSts 6060344440080 wenn ga RR RSS 4 9 lumini Pr 4 10 Equipment 4 10 4 12 NIL LIT MC 4 20 662600030 4 48 Adjustment Procedures Requirements for Performance 5 1 Equipment 5 2 Preparati n u u uwa conde wwe g asawa 5 3 visos 4 164 ee bae a Pas as ges 5 10 Auto Calibration as qasa anaes 5 14 Reference Oscillator Frequency Adjustment 5 18 Reconfiguration of RF 5 20 RSA3303A amp RSA3308A Service Manual
21. RSA3303A amp RSA3308A Service Manual 8 Operating Instructions Before performing any service read the following operating instructions These instructions are at the level appropriate for servicing the analyzer The user manual contains more complete operating instructions This section describes basic procedures such as applying power displaying measurement results and powering off the analyzer using default settings as far as possible for simplicity The following procedures are contained in this section Preparations Connecting devices and applying the power Displaying spectrum Using markers and peak search Using averaging and comparison displays Displaying spectrogram Spectrum analysis Modulation analysis Using Windows XP Shutting off the power You must complete the installation procedures starting on page 2 1 before performing any of the following steps RSA3303A amp RSA3308A Service Manual 2 11 Operating Instructions Preparations This tutorial uses a digitally modulated signal The following equipment is used as a signal source m Analog signal generator example HP8657B One 50 Q coaxial cable Connecting the Signal 1 Connect the output of the signal generator to the RF INPUT connector on the Generator analyzer front panel using a coaxial cable see Figure 2 7 J J
22. cable 2m double shielded Tektronix part number Software based tests three required 012 0991 00 10 Terminator Impedance 50 connectors female Tektronix part number Signal termination for check two required BNC input male BNC output 011 0049 01 ing frequency accuracy 11 RF attenuator Ratio 10 dB impedance 50 Q 5 sss Checking flatness 12 N adapter 3 Female to female N connectors s Signal interconnection 1 For RSA3303A you can use the signal generator with the frequency range of 10 kHz to 3 GHz for example Agilent 8648C 2 Usethis instrument only The adjustment procedures specify that the analyzer controls this instrument over the GPIB 3 Required only when creating a flatness correction files for the signal generators Item 1 and 2 To make an SG flatness floppy disk Item 15 use Agilent 437B or compatible If you use another instrument for example Agilent E4418B select HP437B for the GPIB command set To select the programming language refer to the User s Guide of the instrument 5 2 RSA3303A amp RSA3308A Service Manual Adjustment Procedures Table 5 1 Test equipment Cont number and description Minimum requirements Purpose 13 Mouse Standard accessary File operation 14 Keyboard UB Standard accessary File operation 15 SG flatness floppy disk Created or updated with the proce 3 5 inch 720 K or 1 44 MB Storing flatness correction Two required for dures described on page 5
23. s Timing dBm il afl l 10 Start 256 ms Scale 25 6 ms Center 100 MHz Span 20 kHz Analysis Length s 32m Analysis Offset s 24m Start 232 ms Analog Demod AM Demod Scale 3 2 ms Acquisition Length ms 256 Figure 2 35 Changing the acquisition length Acquisition Length Sets the time length to acquire one block In this case Acquisition Length is 256 ms and Spectrum Length 32 ms so the data is displayed in the overview for 256 32 8 frames 8192 points The green underline indicating the analysis range gets narrower than the previous setting one block 2 frames RSA3303A amp RSA3308A Service Manual 2 43 Operating Instructions Displaying Single View Although three views are normally displayed in the Demod mode you can select and Changing Scale one view to display full screen This section describes how to display one view and change the vertical and horizontal scales using the VIEW keys 1 Press the RUN STOP key to stop data acquision and observe the waveform 2 Press the VIEW SELECT key to select the main view The selected view is surrounded with a white frame DISPLAY MODE VIEW SCALE LINES MARKERS TIME A CEI FAT 3 Press the DEFINE key and then the Show Views side key shown in Figure 2 36 to select Single Only the main view is displayed with the size enlarged on the sc
24. c Check against limits Read the first and the second marker readouts Confirm that the larger value meets the requirement of 74 dBc 3 Disconnect the test equipment Disconnect the cable at the analyzer input 4 34 RSA3303A amp RSA3308A Service Manual Performance Tests Frequency Readout Test Check that the frequency readout accuracy is within the specified range for the analyzer at 10 MHz 2 GHz 5 GHz and 7 GHz Equipment One signal generator Item 2 Required qu One 50 coaxial cable Item 10 Prerequisites Refer to page 4 10 RSA3303A RSA3308A o Signal generator Output 50 N N coaxial cable Figure 4 14 Initial test hookup l Prepare for the test a Initialize the analyzer m Press the SYSTEM key on the front panel Press the Reset All to Factory Defaults side key b Set the generator controls 10 MHz l 22299092 eae ae 10 dBm Hook up the signal generator Connect the generator output through 50 Q N N coaxial cable to the analyzer INPUT See Figure 4 14 2 Check frequency accuracy in the baseband a Modify the analyzer default settings Press the FREQUENCY CHANNEL key on the front panel m With the Center Freq side key set the frequency to 10 MHz usi
25. um D o Z Power supply 3 Principal power switch Figure 6 6 Bottom modules Power supply RSA3303A amp RSA3308A Service Manual 6 16 Removal and nstallation Procedures 5 E 8 E 5 S T AC 5 AYN 7 2 xA IN N Tie NS f ft NN N Tis NN e af 0 a i1 N Z NU NN Kas me y N a yh yt b ET E Ei XJ de pe NN 4 Yo D o ET j KS 5 7 MY qu SOS a Sd M CUu D o 2 VO v OW ES u N S AN NEJ NO gt 7 2 N N AE LLL VON S DPT s 5 fe N LA ff e e yf z d 17 N Pl Laas D N 52 No foy eL den ye Ll N SAN eerte N n NV AN p PME 27 RF1 RSA3303A Figure 6 7 Bottom modules 6 17 RSA3303A amp RSA3308A Service Manual Removal and nstallation Procedures Step attenuator 1 Bracket c Y Programmable band pass filter YTF A150 interface board gt Step attenuator 2 On A100 Interconnection board ANON s 7 N od CO i 57 4 c NN e N S
26. 29 Channel power measurement Channel power measurement Channel Bandwidth 40kHz Figure 2 30 Figure 2 31 Figure 2 32 Figure 2 33 Figure 2 34 Figure 2 35 Figure 2 36 Figure 2 37 Figure 2 38 Figure 4 1 Figure 4 2 Figure 4 3 Figure 4 4 Figure 4 5 Figure 4 6 Figure 4 7 Figure 4 8 Sensor Figure 4 9 Figure 4 10 Figure 4 11 Figure 4 12 Figure 4 13 Figure 4 14 Figure 4 15 Figure 4 16 Figure 4 17 Figure 5 1 Figure 5 2 Figure 5 3 Figure 5 4 Figure 5 5 Figure 5 6 Figure 5 7 RSA3303A amp RSA3308A Service Manual Carrier frequency measurement MODIEGUS CV AM signal measurement Analysis range settings Frame and block Changing the acquisition length Single view display USB ports side panel Spectrum of the calibration signal 50 MHz 20 dBm Setup display aos suus 299 94A AERE VR Reference level setting and A D overflow indicator Spectrogram display Diagnostic 58 Initial test hookup Initial test hookup
27. 75 for the cable interconnection a Unplug the SMB cable W30 and W31 b Option 03 only Unplug the SMB cable W42 1 IN W43 I IN W44 Q IN and W45 Q IN c Remove the two screws securing the front shield bracket to the main chassis d Remove the two screws securing the back shield bracket to the main chassis e Liftup the the 10 board with the brackets RSA3303A amp RSA3308A Service Manual Removal and nstallation Procedures 5 Remove the shield brackets a Remove the nine screws securing the front shield bracket to the 10 board Lift the front shield bracket away b Remove the eight screws securing the back shield bracket to the A10 board Lift the back shield bracket away 6 Reinstallation Reverse steps 4 and 5 to reinstall the 10 board and interconnect cables V b id Option 03 only 9 Figure 6 18 A10 A D board removal RSA3303A amp RSA3308A Service Manual 6 37 Removal and Installation Procedures 6 38 A20 DDC Board A30 Trigger Board A40 Memory Board 1 Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items and 3 b Locate the A20 DDC board in locator diagram Mother board and its daughter boards Figure 6 5 page 6 15 Do step 3 in the A70 A D Board procedure on page 6 36 to remove the board support bracket Orient the analyzer Set the analyzer
28. If necessary change the directory e Click the Open button with the mouse The test starts The result is written in text format to the specified file f Check against limits Select the upper left view with the VIEW SELECT key m Press the VIEW SCALE key m Press the Vertical Scale side key and set the value to 1 dB m Press the Vertical Stop side key and set the value to 0 5 dB B Check that the maximum and the minimum values are within 0 5 dB S Check the RF flatness in the RF RSA3303A RFI RSA3308A band a Press the side key Cancel Back RF Flatness PV b Set the GPIB address of the generator m Press the SG side key to select the manufacturer of the generator HP or Anritsu Press the GPIB Address side key and set the generator address c Press the Measurement side key A file selection box appears the default directory is My Documents d Enter a file name for example RF Flatness pv using the keyboard If necessary change the directory Click the Open button with the mouse The test starts The result is written in text format to the specified file RSA3303A amp RSA3308A Service Manual 4 15 Performance Tests Check against limits Select the upper left view with the VIEW SELECT key m Press VIEW SCALE Auto Scale m Press the PEAK key on the front panel to place the marker on the peak signal Record the maximum amplitude at the marker readout Using the ge
29. W69 switch DC DC Voltage J102 we converter regulator RSA3303A amp RSA3308A Service Manual 9 5 RSA3303A amp RSA3308A Service Manual 3 dB Programmable 3 dB attenuator band pass filter attenuator W123 RF3 module RF2 module RF5 module 10 MHz REF J ss s QUII Gain 2nd 3rd block O EXT REF Step Step INPUT INPUT 7 relay I 2 AL SI W28 W208 3rd LO J320 J120 J110 80 A100 Interconnection board r Synthesizer W42 INPUT li W30 A D CLOCK 2 W25 SIG W43 I INPUT T A10 A D board A20 DDC board A30 Tri board A40 Memory board W44 0 oar 30 Trigger boar 0 Memory boar 46 Q INPUT J _outpur A D W35 Diqital filler FFT Trigger Acquisition Hardware W45 converter 9 processor detector memory controller W47 G INPUT Q INPUT 1 J J100 A50 Mother board PCI bridge J901 J900 J902 J911 J910 J912 J920 J700 J710 J60 J810 wes wee W56 W54 CN81 CN61 51 CN53 CN81 CN61 51 CN53 CN2 CPU board CN1 J120 Power supply 1 Power supply 2 Power supply 3 IDE1 J100 CN2 U82 Front connection board i CN1 FDD1 LCD display LCD inverter A60 J22 Front key board W93 COM1 wes J110 Bus GPIB W64 USB J114 buffer controller J130 J140 e A63 W77 Principal CN2 J120 Line W91 A70 DC power board DVO converter W67 J100 Floppy disk A61 Rotary drive Power switch board Preamplifier H
30. 0 O O O O O O O O O 0 0 0 0 0 0 O O O O O Frame 1 O O O O O O O 0 0 0 0 0 0 0 O O O O O O Frame 2 O O O O O O O 0 0 0 0 0 0 0 0 O O O O O Frame 3 1 block N frames O O O O O O O O O 0 0 0 0 0 0 O O O O O Frame N 1 Figure 2 34 Frame and block Suppose that one block contains N frames The acquisition length for a block is calculated using this equation One block acquisition length N X One frame acquisition length One block acquisition length is set using Acquisition Length in the Timing menu One frame acquisition length is set internally depending on span and displayed in Spectrum Length in the Timing menu To set the acquisition length perform the following steps 1 Press the TIMING key on the front panel By default Acquisition Length is set to 64 ms and Spectrum Length 32 ms The number of frames in a block is 64 32 2 2 Press the Acquisition Length side key to change the value For example set 256 ms by turning the knob see Figure 2 35 2 42 RSA3303A amp RSA32308A Service Manual Operating Instructions Tektronix RSA 3308A 03 08 12 11 24 57 TIMING Cancel Back Frequency 100 MHz Acquisition Length 256 ms Span 20 kHz Acquisition E Input Att 20 dB Length s 0 0 Acquisition dBm dBm History 0 Spectrum Length 5 8 frames 8192 points al 32m 100 Spectrum Offset Bm 100
31. 119 128 119 127 342 169 211 0871 407 A702 XX 174 B997 XX 174 B999 XX 174 C001 XX 174 C002 XX 343 1644 XX 671 B166 XX 211 0871 XX 211 0871 XX 119 058 260 2740 195 3990 XX 211 1028 XX 119 2683 XX 211 1040 XX 174 C003 XX 174 C005 XX 174 C004 XX 174 C005 XX 174 C006 XX Serial No effective Serial No discont d Qty Name amp description SCREW MACHINE M3X6MM L PNH STL MFZN C CROSS REC W FLAT amp LOCK WASHER POWER SUPPLY IN 85 265VAC 47 63HZ OUT 5V15A 12V 15V4A 24V2A W REMOTE CONTROL POWER SUPPLY IN 85 265VAC 47 63HZ OUT 5V15A 12V 15V4A 3 3V10A W REMOTE CONTROL INSULATOR POWER SUPPLY SCREW MACHINE M3X6MM L PNH STL MFZN C CROSS REC W FLAT amp LOCK WASHER BRACKET SHIELD POWER SUPPLY CA ASSY SP ELEC 2 26AWG 7CM L RIBBON W HLDR ON OFF CA ASSY SP ELEC 6 18AWG 7CM L W HOLDER HLDR 6P TO 8P CA ASSY SP ELEC 7 18AWG 7CM L W HOLDER HLDR 8P TO 3P 6P CA ASSY SP ELEC 8 26AWG 12CM L RIBBON W HOLDER CLAMP CABLE CLIP LOCKING WIRE NYLON CIRCUIT BD ASSY A71 AC POWER 389 B168 XX WIRED SCREW MACHINE M3X6MM L PNH STL MFZN C CROSS REC W FLAT amp LOCK WASHER SCREW MACHINE M3X6MM L PNH STL MFZN C CROSS REC W FLAT amp LOCK WASHER POWER SUPPLY IN 85 264VAC OUT 5V 2A 15V 0 3A 15V 0 2A WITHOUT COVER SWITCH ROCKER DPST250VAC 10A W I O MKD LEAD ELECTRICAL AWG18 100MM L 5 4 W LUG SCREW MACHINE M4X8MM L PNH STL ZN C PL CROSS REC W FLAT amp LOCK WASHER FILTER RFI 6A 250VAC 50 60HZ LEAK 0
32. Disconnect the test equipment Disconnect the cable at the analyzer Input 4 28 RSA3303A amp RSA3308A Service Manual Performance Tests Spectrum Purity Test Check that the Carrier to Noise C No is within the specified range for the analyzer Equipment One signal generator Item 4 Required q One 50 N N coaxial cable Item 10 Prerequisites Refer to page 4 10 RSA3303A RSA3308A Signal generator 50 coaxial cable Figure 4 13 Initial test hookup 1 Prepare for the test a Initialize the analyzer m Press the SYSTEM key on the front panel m Press the Reset All to Factory Defaults side key b Modify the default settings Press the AMPLITUDE key on the front panel m Press the RF Atten Mixer side key to select Mixer m With the Mixer Level side key set the level to 15 dBm m Press the TRACE AVG key m Press the side key Trace 1 Average m Press the Number Of Averages side key and set the value to 50 using the general purpose knob RSA3303A amp RSA3308A Service Manual 4 29 Performance Tests Set the generator controls 2scnaceeecanceens 1500 MHz Amplitude 5 dBm RE OUtDUEL i Lem sees On d Hook up the signal generator Connect the generator output through a 50 Q N
33. GASKET SHIELD FINGER TYPE 15 2MM W X 5 6MM H X 7 2MM L RSA3303A amp RSA3308A Service Manual Replaceable Parts Figure 10 13 Chassis modules 2 10 29 RSA3303A amp RSA3308A Service Manual Replaceable Parts Replaceable parts list Fig amp index number 10 14 3 4 5 10 30 Tektronix part number 211 A039 XX 407 A694 XX 129 A137 XX 407 695 211 0871 211 A039 XX 211 A004 XX 211 1028 XX 407 A699 XX 367 0492 XX 211 A132 XX 407 A700 XX Serial No effective Serial No discont d Qty fF A oA Name amp description SCREW MACHINE M4X14MM L PNH STL ZN PL CROSS REC W FLAT amp LOCK WASHER BRACKET REAR RACK MOUNT SPACER POST 46 0MM L M3 INT EXT STL MFZN C PL 5 5MM HEX BRACKET SHELD SIDE PANEL SCREW MACHINE M3X6MM L PNH STL ZN PL CROSS REC W FLAT 7MM OD amp LOCK WASHER SCREW MACHINE M4X14MM L PNH STL ZN PL CROSS REC W FLAT amp LOCK WASHER SCREW MACHINE M4X10MM L PNH STL ZN C CROSS REC W FLAT amp LOCK WASHER SCREW MACHINE M4X8MM L PNH STL ZN C PL CROSS REC W FLAT amp LOCK WASHER BRACKET SUPPORT FRONT LEFT HANDLE BOW 60MM L SST SCREW MACHINE M5X16MM L PNH STL ZN PL CROSS REC W FLAT amp LOCK WASHER BRACKET SUPPORT FRONT RIGHT RSA3303A amp RSA3308A Service Manual Rep
34. RSA3308A Service Manual 2 13 Operating Instructions The initial screen shown in Figure 2 10 appears after Windows XP starts up the background color is in white on this manual to make figures more viewable Tektronix RSA 3308A 02 11 26 13 32 58 Frequency 1 5 GHz RBW 80 kHz Span 15 MHz Trace 1 Normal Input Att 20 dB Trace 2 Off 0 dBm 10 dB 100 m Center 1 5 GHz Span 15 MHz Spectrum Analyzer Measurement Off Figure 2 10 Initial screen 2 14 RSA3303A amp RSA3308A Service Manual Operating Instructions Restoring Default Settings The analyzer saves the settings when it is turned off When you turn on the analyzer it starts with the settings as they were when it was shut down This tutorial starts with the factory default settings Perform the following steps to restore the factory default settings 1 Press the SYSTEM key UTILITY HELP PRESET INPUT LOAD CAL SAVE SYSTEM key gt SYSTEM PRINT MACRO SETUP 2 Press the Reset All to Factory Defaults side key The instrument is now ready to take measurements RSA3303A amp RSA3308A Service Manual 2 15 Operating Instructions Displaying Spectrum This section describes how to set the frequency span and amplitude first and then appropriately display the spectrum Figure 2 11 shows the settings Frequency Center frequency Amplitu
35. b Hook up the generator Connect the generator output through a 50 Q coaxial cable to the analyzer INPUT See Figure 4 12 RSA3303A RSA3308A fen _ Signal generator Output 50 N N coaxial cable Figure 4 12 Initial test hookup Initialize the analyzer m Press the SYSTEM key on the front panel m Press the Reset All to Factory Defaults side key 4 26 RSA3303A amp RSA3308A Service Manual Performance Tests Modify the default settings Press the FREQUENCY CHANNEL key on the front panel With the Center Freq side key set the frequency to 50 MHz using the numeric keypad Press the SPAN key on the front panel With the Span side key set the span to 10 MHz using the general purpose knob Press the AMPLITUDE key on the front panel With the Ref Level side key set the reference level to 20 dBm using the general purpose knob Press the RF Atten Mixer side key to select RF Att With the RF Att side key set the attenuation to 0 dB using the numeric keypad or the general purpose knob 2 Measure the reference amplitude at 0 dB attenuation a Press the PEAK key on the front panel to place the marker on the peak b Record the peak amplitude at the marker readout as the reference value Let the va
36. package the instrument as follows 1 Obtain a corrugated cardboard shipping carton with inside dimensions at least 15 cm 6 in taller wider and deeper than the instrument The shipping carton must be constructed of cardboard with 170 kg 375 lb test strength 2 If you are shipping the instrument to a Tektronix field office for repair attach a tag to the instrument showing the instrument owner and address the name of the person to contact about the instrument the instrument type and the serial number 3 Wrap the instrument with polyethylene sheeting or equivalent material to protect the finish 4 Cushion the instrument in the shipping carton by tightly packing dunnage or urethane foam on all sides between the carton and the analyzer Allow 7 5 cm 3 in on all sides top and bottom 5 Seal the shipping carton with shipping tape or an industrial stapler NOTE Do not ship the instrument with a diskette inside the floppy disk drive When the diskette is inside the drive the disk release button sticks out This makes the button more prone to damage than it would otherwise be Your instrument may be equipped with one or more instrument options Except for the line cord options described by Table 2 2 on page 2 2 all options and optional accessories are listed and described in Section 7 Options For further information and prices of instrument options see your Tektronix Products catalog or contact your Tektronix Field Office
37. the grounding connection must be made before making connection to the instrument s input or output terminals A power cord with the appropriate plug configuration is supplied with each analyzer Table 2 1 gives the color coding of the conductors in the power cord If you require a power cord other than the one supplied refer to Table 2 2 Power Cord Identification Table 2 1 Power cord conductor identification Conductor Color Alternate color Ungrounded Line Black Grounded Neutral White Grounded Earthing Green RSA3303A amp RSA3308A Service Manual 2 1 Installation Table 2 2 Power cord identification Plug configuration Option number North America 120 V Universal Euro 230 V United Kingdom 230 V North America 240 V Switzerland 220 V China A10 240 V No power cord supplied A99 Operating Voltage This analyzer operates with any line voltage from 90 250 VACpms with any line frequency from 47 63 Hz Before plugging the cord in the outlet be sure that the power supply voltage is proper 2 2 RSA3303A amp RSA32308A Service Manual Installation Operating Environment The following environmental requirements are provided to ensure proper operation and long Instrument life Operating Temperature Operate the analyzer where the ambient air temperature is from 10 C to 40 with no diskette in the floppy drive Store the analyzer in ambient temperatures from 20 C to 60 C with
38. the numeric value you enter will be set immediately If you enter incorrect values clear them using the BKSP back space key and then enter the correct digit ABC DEF S UNLOCK 9 GHz Clears the character preceding the cursor GHI JKL MNO ms The unit keys also function enter keys 5 TUV WXYZ s When you press any of these keys the numeric value e you enter will be set immediately with the unit amp ns dBm NEXT 9 C Accepts the inputs Numeric keys Figure 2 13 Numeric value entry keypad RSA3303A amp RSA3308A Service Manual 2 17 Operating Instructions 2 18 The current setting is displayed in this field SPAN key The spectrum waveform is displayed on the screen as shown in Figure 2 14 The current setting is displayed on the bottom of the screen Center Freq MHz 100 in this example Tektronix RSA 3308A 03 11 18 15 18 35 FREQ CHAN Frequency 100 MHz RBW 80kHz 15 MHz Trace 1 Normal Center Freq 4 Input Att 20 dB Trace 2 Off 0 Start Freq dBm Hz 92 5 Stop Freq Hz 107 5 10 Channel Table dB None Center Freq Step Same As C F Center Freq Step Same As Span ras Step Size Center 100 MHz Span 15 MHz Center Freq Spectrum Analyzer Measurement Off Center Freq MHz 100 200k Figure 2 14 Center frequency of 100 MHz span of 15
39. 1 c Remove the four screws securing the attenuator to the main chassis d Using a 6 inch wrench disconnect the SMA cable W107 on the attenuator Remove the input relay a Unplug the cable W114 on the input relay b Remove the two screws securing the input relay to the bracket c Using a 6 inch wrench disconnect the SMA cable at RF INPUT d Using a 1 6 inch wrench disconnect the SMA cables W101 W107 and W119 on the input relay Lift up and remove the input relay e If necessary remove the four screws securing the bracket to the main chassis Lift up and remove the bracket Reinstallation Reverse step 3 through 5 to reinstall the RF1 modules Assemble equipment and locate module to be removed a You will need a 1 Phillips screwdriver Items 1 and 2 and a 6 inch wrench Item 11 b Locate the modules in the locator diagram Bottom modules Figure 6 8 page 6 18 Orient the analyzer Set the analyzer so its top is down on the work surface and its front is facing you Remove the cables on the A100 Interconnection board Refer to the A700 Interconnection Board procedure on page 6 48 See Figure 6 25 for the following steps 4 through 8 Also see Figure 6 37 for cable interconnection 4 Remove the base plate with the modules a Using a 1 6 inch wrench disconnect the SMA cable W101 at the RF INPUT b Using inch wrench disconnect the SMA cable W106 at the 3 dB attenuator
40. 1 Prepare for the test Connect each generator output through 50 Q N SMA coaxial cable to each power combiner input See the figure below a RSA3303A RSA3308A 4 29 9999 Signal generator 29 suput lt N SMA cable Signal generator Power QO combiner N SMA cable Output b Connect the power combiner output through a 50 Q N SMA coaxial cable to the analyzer INPUT c Set the signal generator 2 controls Frequency 1999 85 MHz E oes a 0 dBm ALC BW 100 Hz PRequency EN 2000 15 MHz 0 dBm ALC DW 100 Hz 4 32 RSA3303A amp RSA3308A Service Manual Performance Tests e Initialize the analyzer Press the SYSTEM key on the front panel Press the Reset All to Factory Defaults side key f Modify the default controls Press the FREQUENCY CHANNEL key on the front panel With the Center Freq side key set the frequency to 2 GHz using the numeric keypad Press the SPAN key on the front panel With the Span side key set the span to 1 MHz using the general purpose knob Press the AMPLITUDE key on the front panel With the Ref Level side and set the level to
41. 26 Figure 6 27 Figure 6 28 Figure 6 29 Figure 6 30 Figure 6 31 Figure 6 32 Initial test hookup 5 14 Initial test hookup 5 18 R232 location top view of the card cage 5 19 C TOSE DOOKBD sepsy t 4045s EIC S oor n 5 21 S Test HOOKBWD 5 22 Analyzer orientation 6 11 External modules 6 12 RF modulis 2uav2u esa 046 ARRIERE meee 9 ese Wawa 6 13 CPU board and disk modules 6 14 Mother board and its daughter boards 6 15 Bottom modules Power supply 6 16 Bottom modules RSA3303A 6 17 Bottom modules RSA3308A 6 18 Front panel modules 6 19 Chassis modules 6 20 Guide to removal procedures 6 21 Line cord and cabinet removal 6 23 Front cushion removal 6 24 Cabinet modules removal 6 26 RF modules removal 6 28 CPU board removal 6 32 Disk module removal 6 34 A10 A D board removal 6 37 Daughter boards removal 6 40
42. 6 DOS compatible floppy disk data for the signal generators RSA3308A Item 1 and 2 16 AWG520 setup disk 3 5 inch DOS compatible floppy disk Tektronix part number Setting up the AWG520 containing the AWG520 setting and 063 3680 00 waveform generator Item 3 waveform files 17 AdjustmentToo __ Maat austen Preparation Do the following procedures before executing the auto calibration m Store calibration factors in the power meter m Prepare the flatness correction file for the signal generators m Option only Install the setup files on the AWG520 waveform generator RSA3303A amp RSA3308A Service Manual 5 3 Adjustment Procedures Storing Cal Factors in the Power Meter 5 4 Equipment Required If you use an Agilent 437B power meter to create flatness correction files for the signal generators Item and 2 you have to store the calibration factors for a power sensor in the power meter There are two ways to store calibration factors m Storing calibration factors manually m Storing calibration factors through the analyzer For information on storing calibration factors manually in the power meter refer to the power meter user s guide When you store calibration factors through the analyzer use the following procedure One power meter Item 5 One GPIB cable Item 9 One 720 K or 1 44 Mbyte 3 5 inch DOS compatible disk if you load calibration factors from a floppy disk 1 Make a text file o
43. A20 DDC board RF3 module or RF4 module A20 DDC board A100 Interconnection board or RF4 module A62 Front connection board or A70 DC power board CPU board or Windows hangs up Power supply 3 CPU board A60 Front key board CPU board or Windows hangs up A30 trigger board Optional 10 A D board RSA3303A amp RSA3308A Service Manual Troubleshooting Table 6 8 Symptoms and faulty modules Cont Symptom other functions are assumed to be normal RF1 band does not work RF2 or 3 band does not work RSA3303A amp RSA3308A Service Manual Possible faulty module RF2 or RF3 module RF3 module Programmable BPF or A100 Interconnection board 6 81 Troubleshooting Notes for Changing Modules or Parts 6 82 When you change the following parts or modules readjustment and or recalibra tion are necessary For details refer to Adjustment Procedures RF3 Module m You need to change the gain and offset values of YTO Tune DAC in the DEBUG menu You can find the gain and offset values in a label located on the module m You must calibrate IF flatness RF gain and RF flatness for RF1 2 and 3 bands RF2 and RF5 Modules You must calibrate IF flatness RF gain and RF flatness for RF1 2 and 3 bands A10 A D Board m You must calibrate baseband gain and baseband flatness m You must calibrate IF flatness and RF gain for RF1 2 and 3 bands m You must calibrate IQ gain St
44. A61 Power switch board See Figure 6 27 a Unplug the cable at J100 on the A61 board b Remove the one screw securing the A61 board to the front bracket c Spreading the catches at left and right sides on the front bracket lift the A61 board up away Reinstallation Reverse step 3 to reinstall the A61 board Assemble equipment and locate module to be removed a You will need a 14 mm nutdriver Items 8 b Locate the preamp power connector in the locator diagram Front panel modules Figure 6 9 page 6 19 Orient the front panel assembly Set the front panel assembly so its front 1 down on the work surface and its back is facing you Remove the preamplifier power connector See Figure 6 27 Using the 14 mm nutdriver remove the nut securing the connector to the front bracket RSA3303A amp RSA3308A Service Manual Removal and nstallation Procedures 4 Reinstallation Reverse step 3 to reinstall the preamp power connector RF Input Connector 1 Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items 1 and 3 inch nutdriver Item 9 and 26 inch wrench Item 11 b Locate the RF input connector in Figure 6 9 page 6 19 c Remove the front panel assembly Refer to the Front Panel Assembly procedure on page 6 55 2 Orient the analyzer Set the analyzer so its bottom is down on the work surface and its front is facing you 3 Remove the RF input co
45. BRACKET SLIDE RAIL MT BRACKET 5517 GUIDE SLIDE RACKMOUNT L AND R 457 2MM SLIDE LENGTH SCREW MACHINE M4X8MM L TRUSS HD STL NI PL CROSS REC PANEL FRONT RACK MOUNT SCREW MACHINE M3X10MM L FLH STL ZN PL CROSS REC SCREW MACHINE M3X8MM L FLH STL ZN C CROSS REC RSA3303A amp RSA3308A Service Manual Replaceable Parts NESIN N N ses ANN NS WON oe N SS Figure 10 15 Rackmount 2 10 33 RSA3303A amp RSA3308A Service Manual Replaceable Parts Replaceable parts list Fig amp index Tektronix Serial No Serial No number part number effective discontd Qty Name amp description STANDARD ACCESSORIES 1 CABLE ASSY PWR 3 18 AWG 92 0 L TAN 60 DEGREE C MC 6 3C G X RIGHT ANGLE BME 10A 125V SAFETY CONTROLLED STANDARD CABLE SEE FIG 10 1 14 161 0104 06 1 CABLE ASSY PWR 3 1 0MM SQ 250V 10A 2 5 METER RTANG IEC320 RCPT EUROPEAN SAFETY CONTROLLED OPTION A1 EUROPEAN 161 0104 07 1 CABLE ASSY PWR 3 1 0MM SQ 250V 10A 2 5 METER RTANG IEC320 RCPT X 13A FUSED UK PLUG 13A FUSE UNITED KINGDOM SAFETY CONTROLLED OPTION A2 UNITED KINGDOM 161 0104 05 1 CABLE ASSY PWR 3 1 0MM SQ 250V 10A 2 5 METER RTANG IEC320 RCPT AUSTRALIA SAFETY CONTROLLED OPTION AUSTRALIAN 161 0104 08 1 CABLE ASSY PWR 3 18 AWG 250 10A 98 0 L RTANG IEC320 RCPT X STR NEMA 6 15P US SAFETY CONTROLLED OPTION A4 NORTH AMERICAN 161 0167 00 1 CABLE ASSY PWR 3 0 75M
46. Confirm that the residual signal level is 90 dBm or less at 100 MHz or more 4 Check residual response in the RF 1 band for RSA3308A only a Modify the analyzer controls m Press the SPAN key on the front panel m With the Stop Freq side key set the frequency to 3 5 GHz using the numeric keypad Measure residual response Press the PEAK key to place the marker at the peak on the noise floor Check against limits Read the marker readout Confirm that the residual signal level is 90 dBm or less within the whole bandwidth 5 Check residual response in the RF2 band for RSA3308A only Modify the analyzer controls m Pressthe FREQUENCY CHANNEL key on the front panel m With the Center Freq side key set the frequency to 5 GHz using the numeric keypad Measure residual response Press the PEAK key to place the marker at the peak on the noise floor Check against limits Read the marker readout Confirm that the residual signal level is 85 dBm or less within the whole bandwidth RSA3303A amp RSA3308A Service Manual Performance Tests 6 Check residual response in the band for RSA3308A only a Modify the analyzer controls m Press FREQUENCY CHANNEL key on the front panel m With the Center Freq side key set the frequency to 7 GHz using the numeric keypad b Measure residual response Press the PEAK key to place the marker at the peak on the noise floor c Check against limits Read th
47. Defaults side key d Modify the default settings Press the FREQUENCY CHANNEL key on the front panel With the Center Freq side key set the frequency to 6 5 GHz using the numeric keypad Press the SPAN key on the front panel With the Span side key set the span to 3 GHz using the numeric keypad 3 Check the spectrum Confirm that a spectrum displays at 6 5 GHz 4 Disconnect the test equipment Disconnect the cable at INPUT RSA3303A amp RSA3308A Service Manual 9 23 Adjustment Procedures 5 24 RSA3303A amp RSA3308A Service Manual Maintenance Maintenance This section contains the information needed to do periodic and corrective maintenance on the RSA3303A and RSA3308A Real Time Spectrum Analyzers The following subsections are included m Preparation Introduction plus general information on preventing damage to internal modules when doing maintenance Inspection and Cleaning Information and procedures for inspecting the analyzer and cleaning its external and internal modules m Removal and Installation Procedures Procedures for the removal of defective modules and replacement of new or repaired modules Also included is a procedure for disassembly of the analyzer for cleaning m Troubleshooting Information for isolating and troubleshooting failed modules Included are instructions for operating the analyzer s internal diagnostic routines and troubleshooting trees Related Main
48. Figure 6 16 a Remove the two screw securing the board stopper bracket to the memory support bracket Lift the bracket away b Remove the two screw securing the memory support bracket to the disk bracket Lift the bracket away Remove the CPU board a Unplug the cables from the connector FDD1 COMI IDEI USB CN2 and CN3 on the CPU board b Unplug the cable from the connector J102 on the A63 DVO converter attached to the CPU board c Remove the two screw securing the board to the main chassis Lift the board up away Reinstallation Reverse step 3 and 4 to reinstall the CPU board RSA3303A amp RSA3308A Service Manual 6 31 Removal and Installation Procedures CPU board Board stopper bracket gt Memory support bracket Figure 6 16 CPU board removal 6 32 DVO converter RSA3303A amp RSA3308A Service Manual Removal and nstallation Procedures Hard Disk Drive 1 Back up the user files Use the Windows Back Up tool to back up files stored on the hard disk The Back Up tool is located in the System Tools folder in the Accessories folder Start the tool and determine which files and folders to back up Use the Wi
49. J710 A61 AR LCD inverter J W56 Power switch LCD CN2 CN1 W54 W53 P v J140 J120 T 7 J130 J100 Preamplifier power a Front key Figure 6 35 Top view for cable interconnection RSA3303A amp RSA3308A Service Manual 6 75 Troubleshooting Rear Power switch Ine M filter CN CNS3 Fr J902 W CN51 J900 W91 Power supply 1 W92 W93 W8 901 CN81 J100 W95 H W81 on 912 Power supply 3 J120 Min nes 1 J910 J130 r 71 AC power Power supply 2 CN61 wet J911 J920 eH M W86 J J100 W35 J100 A100 W109 Step attenuator 2 Interconnection A120 W108 W115 To RF3 W119 7 4 oum J110 4230 X J300 J120 SSS 130 J280 W107 x l Step attenuator 1 J nod A110 W13 W114 To RF4 W10 relay L 3 RF input Figure 6 36 Bottom view for cable interconnection
50. MHz The next step 1 to set the span It is currently set to 15 MHz as the default value Change the setting to 20 kHz 3 Press the SPAN key on the front panel MEASUREMENT FREQUENCY RUN CHANNEL STOP SPAN TRIG RBW AMPLITUDE FFT RSA3303A amp RSA3308A Service Manual Operating Instructions The Span menu item is selected opan Indicates that the general purpose knob is available Hz Y XXX Numeric value input field 4 Turn the general purpose knob to the left to select 20k The hardware is set with the selected value immediately The spectrum waveform is displayed on the screen as shown in Figure 2 15 Tektronix RSA 3308A 03 08 08 14 13 43 Frequency 100 MHz RBW 200 Hz Span 20 kHz Trace 1 Normal Input Att 20 dB Trace 2 Off 0 Start Freq dBm Hz 99 99M Stop Freq Hz 100 0 1M Center 100 MHz Spectrum Analyzer Measurement Off Span kHz 20 Span 20 kHz Figure 2 15 Center frequency of 100 MHz span of 20 kHz RSA3303A amp RSA3308A Service Manual 2 19 Operating Instructions Setting Up Amplitude In Figure 2 16 the vertical scale shows the spectrum view set up for 10dB per division Ref level 1s the maximum value of the vertical axis and it 1s set to 0 dBm when the analyzer is powered on Observe the change in the waveform as you change this setting in the follo
51. Manual 3 1 Theory of Operation RF3 Module RF2 Module 3 2 The module contains the 1 Converter 1 Local Oscillator 18 IF Amplifi er and other components After level adjustment in the RF input circuit the input signal is applied to the 1 Converter Mixed with 1 LO signal the input signal is frequency converted into 1 IF signal of 4232 MHz Oscillation frequency of 15 Local Oscillator is controlled with a synthesizer RF4 module in this case so that 1 IF signal is always maintained at 4232 MHz After this the 1 IF signal passes through the 1 IF Amplifier that has a gain of approxi mately 10 dB and is sent to the 219 Converter RF2 module In baseband an input signal enters the 15 Converter Then the signal path is switched with a relay and the signal is sent directly to the 10 A D board for A D conversion In band an input signal goes through all converters 13t 2nd and 319 In RF2 3 band an input signal is directly frequency converted by the 15 Converter into the 219 IF signal of 422 MHz then sent directly to 314 Converter bypassing the 219 Converter The RF2 module consists of the 27 Converter 3 9 Converter and 219 Local Oscillator The 15 IF signal sent from the 15t Converter passes through Band pass Filter and a Low pass Filter for removal of unnecessary frequency bands After this the 15 IF signal enters the 2nd Converter In the 219 Converter the 15 IF signal is mixed with the
52. N coaxial cable to the analyzer INPUT See Figure 4 13 2 Check phase noise for a span of 100 kHz a Modify the analyzer controls W Press the SPAN key on the front panel m With the Span side key set the span to 100 kHz using the general purpose knob or the numeric keypad m Press the RBW FFT key on the front panel Press the RBW FFT side key to select Man m With the RBW side key set the RBW to 200 Hz b Perform the C N measurement m Press the key MEASURE gt C N MEAS SETUP Press the Offset Frequency side key and set the value to 10 kHz using the general purpose knob m Press the Noise Bandwidth side key and set the value to 2 kHz using the general purpose knob c Check against limits Read the phase noise C No at the bottom of the screen Confirm that the value is 100 dB Hz or more 3 Check phase noise for a span of 1 MHz a Modify the analyzer controls W Press the SPAN key on the front panel m With the Span side key set the span to 1 MHz using the general purpose knob or the numeric keypad m Press the RBW FFT key on the front panel Press the RBW FFT side key to select Man m With the RBW side key set the RBW to 2 kHz 4 30 RSA3303A amp RSA3308A Service Manual Performance Tests b Perform the C N measurement Select MEASURE gt C N gt MEAS SETUP Press the Offset Frequency side key and set the value to 100 kHz using the general purpose knob Press the Noise Bandwidth side
53. No discont d Qty Name amp description SCREW MACHINE M4X8MM L PNH STL ZN C PL CROSS REC W FLAT amp LOCK WASHER MODULE RF DOWNCONVERTER GAIN BLOCK WCA230A amp WCA280A RF5 MODULE RF DOWNCONVERTER RF4 SYNTHESIZER WCA280A amp WCA230A MODULE RF DOWNCONVERTER 1ST RSA280 RF3 RSA3308A MODULE RF DOWNCONVERTER 1ST RSA230 RF3 RSA3303A MODULE RF DOWNCONVERTER 2ND amp 3RD RF2 RSA3308A MODULE RF DOWNCONVERTER 2ND amp 3RD RF2 RSA3303A RSA3303A amp RSA3308A Service Manual Replaceable Parts RF2 Figure 10 4 RF modules 10 11 RSA3303A amp RSA3308A Service Manual Replaceable Parts Replaceable parts list Fig amp index number 10 5 1 3 4 5 6 27 10 12 Tektronix part number 211 1028 XX 343 1644 XX 348 A120 XX 344 0472 XX 211 0871 XX 211 1028 XX 407 A691 XX 351 A165 XX 407 A684 XX 671 B159 XX 671 B161 XX 671 B162 XX 671 B160 XX 211 0871 XX 407 A707 XX 211 1028 XX 671 B257 XX 671 B158 XX 211 1028 XX 407 A682 XX 211 0871 XX 348 1767 XX 174 B983 XX 671 B164 XX 211 0871 XX 343 1644 Serial effective Serial No discont d Qty N NMN N A N 25 Name amp
54. RSA3303A amp RSA3308A Service Manual Brief Procedures A D overflow indicator Reference level setting Tektronix RSA 3308A OVERFLO INPUT CAL raaawHwwawssr xww W crrI Frequency 50 MHz RBW 80 kHz Span 15 MHz Trace 1 Normal Ref Level Input Att 0 dB Trace 2 Off dBm En Reference level 220 dBm Auto Level Figure 4 3 Reference level setting and A D overflow indicator 8 Check the spectrogram display a Press the S A key on the front panel b Press the S A with Spectrogram side key Check that the spectrogram is displayed on the lower side of the screen see Figure 4 4 0 dBm 100 dBm Center 50 MHz _ Span 15 MHz Spectrogram Figure 4 4 Spectrogram display c Press the RUN STOP key on the front panel to stop data acquisition Confirm that the trace display freezes and PAUSE is displayed in the status indicator at the top right of the screen RSA3303A amp RSA3308A Service Manual 4 7 Brief Procedures Diagnostics You can run the Internal diagnostic program to check hardware states Table 4 2 shows the test items and their descriptions Table 4 2 Internal diagnostic program Menu item Description Possible failure Temp Sensor Checks that the temperature sensor works correctly RF5 module Data Memory Checks that the acquisition memory works correctly A40 board Equipment None Required Prerequisites Power on the
55. S V wW Figure 10 11 Bottom modules Interconnection 10 25 RSA3303A amp RSA3308A Service Manual Replaceable Parts Replaceable parts list Fig amp index number 10 12 zi 2 28 4 5 6 10 26 Tektronix part number 211 1028 XX 348 1761 XX 174 B994 XX 220 0194 XX 174 4102 XX 174 B980 XX 348 1762 XX 211 A151 XX 131 6607 XX 386 A865 XX 333 A445 XX 407 679 351 169 351 A168 XX 407 A680 XX 351 A168 XX 351 A169 XX 211 1028 XX 441 A293 XX 211 1028 XX Serial No effective Serial No discont d Qty Name amp description SCREW MACHINE M4X8MM L PNH STL ZN C PL CROSS REC W FLAT amp LOCK WASHER GASKET SHIELD CONDUCTIVE URETHAN FOAM 2MM X 4MM 140 MM LW ADHESIVE CA ASSY SP ELEC 24 AWG28 20CM L DDK 57FE TO 2 54MM GPIB NUT PLATE STL CA ASSY RF 500HM 1 5D 2W 10CM L SMB L SMB L CABLE ASSY RF 500HM COAX 17CM L 1 5D QEW SMB L TO SMB L Qty 6 for Option 03 GASKET SHIELD CONDUCTIVE URETHAN FOAM 2MM X 4MM 180 MM L W ADHESIVE SCREW MACHINE M2 5X6MM L PNH STL ZN C CROSS REC W KOGATA PLAIN amp SPLIT WSHR Qty 32 for Option 03 CONN RF BNC F TO SMB F 50OHM PANEL MOUNT Qty 8 for Option 03 PLATE BLANK BNC CONNECTOR PANEL REAR WCA230A amp WCA280A AL BRACKET BOARD GUIDE GUIDE CKT BD NYLON BLACK 19MM L GUIDE CKT BD NYLON BLACK 100MM L BRACKET GUIDE PC BOARD GUIDE CKT BD NYLON BLACK 100MM L GUIDE CKT BD NYLON BLACK 19MM L SCREW MACHINE M4X8MM L PNH STL ZN C
56. See Figure 6 31 a Unplug the coaxial cable from the connector b Using a screwdriver with a 1 Phillips tip remove the four screws securing the connector to the rear chassis Pull the connector away Remove the GPIB connector See Figure 6 31 a Unplug the cable at J410 on the A70 DC power board Refer to the A70 DC Power Board procedure on page 6 39 b Using a flat bladed screwdriver remove the two screws securing the connector to the rear panel Pull the connector away Standard type only Remove the blank plate Remove the two screws securing the blank plate to the rear panel Lift the blank plate away Remove the rear panel Remove the two screws securing the rear panel to the main chassis Lift up the rear panel away Reinstallation Reverse steps 3 through 6 to reinstall the rear panel modules RSA3303A amp RSA3308A Service Manual Removal and nstallation Procedures Figure 6 31 Rear panel modules RSA3303A amp RSA3308A Service Manual 6 65 Removal and Installation Procedures 6 66 RSA3303A amp RSA3308A Service Manual gt gt Z l h l h h h h l l l l 2 2 u s Troubleshooting This subsection contains information and procedures designed to help you isolate faulty modules in the analyzer If a module needs to be replaced follow the Removal and Installation Procedures ocated in this section Troubleshooting Procedure This subsection consists of the foll
57. T Start E 5 3 Select Close from the menu The analyzer system program stops and the Windows XP desktop displays Returning to the Analyzer To switch from the Windows desktop screen to the analyzer display from the View task bar select Start Program TEK RTSA The analyzer program starts RSA3303A amp RSA3308A Service Manual 2 47 Operating Instructions Turning Off the Power When you have completed the measurements turn off the power 1 Press the ON STANDBY switch at the lower left of the front panel The shutdown process of Windows XP runs and the power source goes to standby state with the orange LED on 2 Turn off the signal generator You have now completed the tutorial 2 48 RSA3303A amp RSA3308A Service Manual Theory of Operation w gt Z i h h h yy E EE ie hl l S Theory of Operation RF Input Circuit This section describes the electrical operation of the RSA3303A and RSA3308A using the major circuit blocks or modules as shown in Figure 9 1 The RF input circuit block consists of a relay for signal switching Input Relay Step Attenuator 1 and 2 Programmable Band pass Filter RSA3308A only and a control circuit for these components This block adjusts the level of input signal as appropriate in accordance with reference level settings and sends the signal to the 1 converter Input Relay located just after the RF INPUT connector is for calibration signal switch
58. Table 6 8 Symptoms and faulty modules Symptom other functions are assumed to be normal No trigger signal is output from TRIG output connector Cannot triggered with an external trigger signal No reference signal is output from 10MHz REF OUT connector on the rear panel Displayed signal frequency shifts when selecting EXT as the reference source EXT IQ signal is not displayed or signal level is incorrect Signal is not displayed or signal frequency shifts when you set up a specific or in a specific range of center frequency Noise floor excessively increases or spurious signal appears at specific span setting Noise floor intermittently jumps high regardless of span or center frequency settings Correct signal frequency and or level are not displayed when span is set to a value greater than 20MHz Acquisition freezes when you set a specific span Error message is displayed when you execute self gain calibra tion GPIB does not work Cannot turn off power using the ON STANDBY switch Cannot turn off power using the ON STANDBY switch while the power LED is not illuminated Cannot turn off power using the ON STANDBY switch while the power LED is illuminated A front panel key does not respond The frequency trigger does not work Baseband mode does not work Possible faulty module A40 Memory A40 Memory RF5 module RF5 module 10 A D board RF3 module or RF4 module A20 DDC board A10 AD or
59. Typical outdoor locations Class 1 as defined in IEC61010 1 Annex H grounded product 5 to 40 C Overvoltage Category Il as defined IEC61010 1 Annex J Pollution Degree 2 as defined in IEC61010 1 Note Rated for indoor use only RSA3303A amp RSA3308A Service Manual 1 25 Specifications 1 26 RSA3303A amp RSA3308A Service Manual Operating Information Installation Supplying Operating Power A A Power Cord Information WARNING AC POWER SOURCE AND CONNECTION The analyzer operates from a single phase power source It has a three wire power cord and two pole three terminal grounding type plug The voltage to ground earth from either pole of the power source must not exceed the maximum rated operating voltage 250 volts Before making connection to the power source be sure the analyzer has a suitable two pole three terminal grounding type plug GROUNDING This instrument is safety Class 1 equipment IEC designation All accessible conductive parts are directly connected through the grounding conductor of the power cord to the grounded earthing contact of the power plug WARNING The power input plug must be inserted only in a mating receptacle with a grounding contact where earth ground has been verified by a qualified service person Do not defeat the grounding connection Any interruption of the grounding connection can create an electric shock hazard For electric shock protection
60. amp RSA3308A Service Manual RF3 module RF2 module RF5 module 10 MHz REF J ss s QUII Gain block EXT REF w101 Input iid W108 d W109 n erter a erter a erter m T attenuator attenuator converte conv onv INPUT relay _ _ W119 N ALSI W28 s W208 3 LO 302 J120 7730 nn A100 Interconnection board 2 NENNEN r Synthesizer W42 INPUT li W30 A D CLOCK 2 __ W25 SIG W43 I INPUT T A10 A D board A20 DDC board A30 Tri board A40 Memory board W44 0 oar 30 Trigger boar 0 Memory boar 46 Q INPUT J _outpur A D W35 Diqital filler FFT Trigger Acquisition Hardware W45 converter 9 processor detector memory controller W47 G INPUT Q INPUT 1 J J100 A50 Mother board PCI bridge J901 J900 J902 J911 J910 J912 J920 J700 J710 J60 J810 wes wee W56 W54 CN81 CN61 51 CN53 CN81 CN6151 CN53 CN2 CPU board J120 Power supply 1 Power supply 2 Power supply 3 IDE1 J100 Front connection board i FDD1 LCD display LCD inverter A60 J22 Front key board W93 COM1 wes J110 Bus GPIB W64 USB J114 buffer controller J130 J140 e A63 W77 Principal CN2 J120 Line W91 A70 DC power board DVO converter W67 J100 Floppy disk A61 Rotary drive Power switch board Preamplifier Hard disk Figure 9 2 Interconnect diagram RSA3303A encoder filter
61. amp RSA3308A Service Manual 7 3 Options and Accessories 7 4 RSA3303A amp RSA3308A Service Manual Electrical Parts List eWWiww w w I Zw Electrical Parts List The modules that make up this Instrument are often a combination of mechanical and electrical subparts Therefore all replaceable modules are listed in Sec tion 10 Mechanical Parts List Refer to that section for part numbers when using this manual RSA3303A amp RSA3308A Service Manual 8 1 Electrical Parts List 8 2 RSA3303A amp RSA3308A Service Manual Diagrams w Z Diagrams This section contains the following diagrams m Block diagram Shows the modules and functional blocks Interconnect diagrams Show how the modules connect together RSA3303A amp RSA3308A Service Manual 9 1 Diagrams 9 2 RSA3303A amp RSA3308A Service Manual Trigger Input Trigger Output Ref Ref input output 3 GHz 8 GHz down converter mM RF RF3 module modul 220 A30 A40 Input A D board DDC board Trigger board Memory board optional Power supply PCI bridge Power supply 1 70 power board Power supply 2 Power supply 3 GPIB A62 CPU board Front connection A60 Principal power A71 board 8 4 LCD switch AC power board 256 MB memory Front panel key RSA3303A amp RSA3308A Service Manual GPIB controller board USB X2 ON STANDBY switch 3 5 FDD Figure 9 1 Block diagram RSA3303A
62. analog signals IF signal baseband signal and external Q signal optional Each input circuit is equipped with a Buffer Amplifier a Step Amplifier and a Step Attenuator to maintain the signal level as appropriate as well as a BPF or LPF for removal of signal components within unnecessary frequency bands The DDC board consists of an IQ Splitter and cascade connected Digital Filters After being converted into digital format in the 10 A D board the input signal is split into I and Q signals by the IQ Splitter At the same time I Q signals are frequency shifted so that each of them occupies a frequency band centered at frequency zero point DC I Q signals output from IQ Splitter are sent to the Digital Filters In these filters bandwidth of these signals is limited correspond ing with span settings In addition re sampling is performed to achieve the higher frequency resolution I Q signals output from the Digital Filters are sent to the A30 Trigger board optional and the A40 Memory board In the A20 DDC board the IF Level Trigger signal is generated based upon the data output from the A D converter The trigger signal is sent to the A40 Memory board that stops data acquisition at the timing corresponding with trigger position A30 Trigger Board Optional 3 4 The A30 Trigger board is an optional circuit board to achieve real time frequen cy trigger function The board consists of a dual port SRAM and a pipeline con nected o
63. analyzer and allow a 20 minute warm up before doing this procedure 1 Press CAL Service Password 2 Enter 270833 and then press the ENTER key using the numeric keypad 3 Press the DIAG side key 4 Select the diagnostic menu item to be executed You may press the side key to run all the tests 5 Check the result shown in the lower left view with Pass Fail Marker 160 us Marker 34 14875 ms 10 507 dBm 2 572 mV 10 u 100 dBm mV The process is 10 20 qo e graphically displayed mV on the upper views 110 100 dBm lL v Start 10 24 s Scale 1 024 s Start 34 14875 ms Scale 160 us RESUL deltal 56 in 48327171 TEMP SENSOR vite O DATA MEMORY CHE Figure 4 5 Diagnostic screen 4 8 RSA3303A amp RSA3308A Service Manual _ i h Performance Tests This section contains a collection of procedures for checking that the RSA3303A and RSA3308A Real Time Spectrum Analyzers perform as warranted STOP These procedures extend the confidence level provided by the basic procedures described on page 4 3 Perform the basic procedures first and then perform the following procedures if desired There are two types of performance tests Auto Tests and Manual Tests m Auto Tests use internal routines to verify that the analyzer functions properly and was adjusted properly m Manual Tests supplement the Auto Tests to verify the analyzer p
64. and set the value to 50 using the general purpose knob 2 Check residual response in the baseband a Measure residual response Press the LINES key on the front panel Press the Show Line side key to select Vertical Press the Number Of Line key to select 1 With the Linel side key set the value to 1 MHz using the numeric keypad Press the Show Line side key to select Horizontal Press the Number Of Line key to select 1 With the Linel side key set the value to 93 dBm using the numeric keypad b Check against limits Confirm that the residual signal level 15 93 dBm or less at 1 MHz or more 3 Check residual response in the RF band up to 3 GHz a Modify the analyzer controls RSA3303A amp RSA3308A Service Manual Press the FREQUENCY CHANNEL key on the front panel With the Center Freq side key set the frequency to 1 5 GHz using the numeric keypad Press the SPAN key on the front panel With the Span side key set the span to 3 GHz using the numeric keypad 4 45 Performance Tests 4 46 Measure residual response m Press the LINES key m Press the Show Line side key to select Vertical m Press the Number Of Line key to select 1 m Press the Linel side key and set the value to 100 MHz m Press the Show Line side key to select Horizontal m Press the Number Of Line key to select 1 Press the Linel side key and set the value to 90 dBm using the numeric keypad Check against limits
65. be obligated to furnish service under this warranty a to repair damage resulting from attempts by personnel other than Tektronix representatives to install repair or service the product b to repair damage resulting from improper use or connection to incompatible equipment c to repair any damage or malfunction caused by the use of non Tektronix supplies or d to service a product that has been modified or integrated with other products when the effect of such modification or integration increases the time or difficulty of servicing the product THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE PRODUCT IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE TEKTRONIX RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES __ Table of Contents General Safety Summary Xi Service Safety Summary xiii rol gt EAEE Manual wide dee ee nes bene g ond ee ban See be XV Manual Conventions
66. c Remove the RF modules Refer to the RF Modules procedure on page 6 27 d Remove all the daughter boards Refer to the procedure Mother Board and its Daughter Modules on page 6 36 2 Orient the analyzer Set the analyzer so its bottom is down on the work surface and its left side is facing you When removing the board guide S lt press its catches at both sides before pulling it backward Figure 6 30 Board guide bracket removal RSA3303A amp RSA3308A Service Manual 6 63 Removal and Installation Procedures Rear Panel Modules 6 64 Remove the board guide bracket Remove the four screws securing the board guide bracket to the main chassis Lift the bracket up and away Remove the PC board guide bracket Remove the two screws securing the PC board guide bracket to the main chassis Lift the bracket up and away Reinstallation Reverse steps 3 and 4 to reinstall the board guide brackets Assemble equipment and locate module to be removed a You will need a screwdriver with 1 and 2 Phillips tips Items 1 2 and 3 and a flat bladed screwdriver Item 4 b Locate the rear panel modules in the Chassis modules diagram Figure 6 10 page 6 20 Orient the analyzer Set the analyzer so its bottom 1s down on the work surface and its rear is facing you Remove the SMB BNC connector
67. counter reads 10 MHz 0 1 Hz See Figure 5 10 for the R232 location Rear O O o RF5 module gt o C ID R232 D C s Q Figure 5 10 R232 location top view of the card cage 3 Restore the analyzer to normal operation a Power off the analyzer b Refer to Removal and Installation Procedures in Section 6 to reinstall the cabinet and other modules removed in step 1 RSA3303A amp RSA3308A Service Manual 5 19 Adjustment Procedures Reconfiguration of RF Modules The following procedures update the down converter configuration file when replacing the RF3 module and or YTF unit The procedure for the YTF unit is for the RSA3308A analyzer only STOP Before doing the following procedures note the gain and offset values which are indicated on the front surface of the module Reconfiguration of the When replacing the module do the following procedure RF3 Module Equip
68. disk bracket containing the A62 Front connection board using step 4 in the hard disk removal procedure on page 6 33 3 Remove the A62 Front connection board See Figure 6 17 a Remove the two screws securing the shield bracket over the A62 board to the disk bracket b Remove the two screws securing the A62 board to the disk bracket Lift the board up away 4 Reinstallation Reverse steps 2 and 3 to reinstall the A62 board RSA3303A amp RSA3308A Service Manual 6 35 Removal and Installation Procedures Procedures for Mother Board and its Daughter Boards Read the Access Procedure on page 6 21 before proceeding The procedures are presented in the following order A10 A D Board 6 36 10 A D board A20 DDC board A30 Trigger board Option 02 only A40 memory board 70 DC power board 50 Mother board Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items 1 and 3 b Locate the A10 A D board in locator diagram Mother board and its daughter boards Figure 6 5 page 6 15 Orient the analyzer Set the analyzer so its bottom 1s down on the work surface and its front is facing you Remove the board support bracket See Figure 6 19 on page 6 40 Remove the two screws securing the board support bracket to the rear support bracket and the RF5 module Lift the board support bracket away Remove the AIO A D board See Figure 6 18 Also see Figure 6 35 on page 6
69. for Option 02 For example W CDMA communication data can be captured for up to 2 5 seconds on standard and 10 seconds on Option 02 The memory is accessed from the system controller via the ISA PCI bridge The system controller board has an Intel Pentium III CPU It runs on Win dows XP and controls menu operation from the front panel keys It is equipped with a 20 GB hard disk and 3 5 inch disk drive to store data and settings Waveforms menus and measurement results are shown on the color display which uses an 8 4 inch XGA TFI LCD module The standard analyzer has the following external interfaces USB for mouse keyboard and or printer m LAN Ethernet 10 100BASE T GPIB VGA for an external monitor RSA3303A amp RSA3308A Service Manual n Specifications This section contains the RSA3303A and RSA3308A Real Time Spectrum Analyzers specifications All specifications are guaranteed unless labeled Typical Typical specifications are provided for your convenience NOTE In these tables those warranted characteristics that are checked in the Performance Verification appear with the symbol in the Characteristics column Performance Conditions The performance limits in this specification are valid with these conditions m The analyzer must have been calibrated and adjusted at an ambient tempera ture between 20 C and 30 C m The analyzer must be in an environment with temperature altitude humidity and vibra
70. lift it forward to snap it off of the front bracket If servicing the menu buttons lift them out of the front bezel Remove the front panel Unstick the front panel from the front bezel to remove it Reinstallation Reverse steps 3 and 4 to reinstall the front panel menu buttons and front bezel RSA3303A amp RSA3308A Service Manual 6 57 Removal and nstallation Procedures A60 Front Key Board A61 Power Switch Board Preamp Power Connector 6 58 1 Assemble equipment and locate module to be removed a You will need 2 Phillips screwdriver Items 1 and 3 b Locate the A60 Front key board in the locator diagram Front panel modules Figure 6 9 page 6 19 Orient the front panel assembly Set the front panel assembly so its back is down on the work surface and its front is facing you Remove the A60 Front key board See Figure 6 27 a Unplug the cable at J120 and J130 on the A60 board b Remove the four screws securing the A60 board to the front bracket Lift up and remove the A60 board Reinstallation Reverse step 3 to reinstall the A60 board Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items and 3 b Locate the A61 Power switch board in the locator diagram Front panel modules Figure 6 9 page 6 19 Orient the front panel assembly Set the front panel assembly so its front 1 down on the work surface and its back is facing you Remove the
71. menu Refer to Reconfiguration of RF Modules on page 5 20 Are the gain and offset values set correctly No Yes Replace RF2 module or RF4 module Figure 6 34 Troubleshooting procedure 3 Signal path Cont 6 72 Yes Unplug the coaxial cable W29 on the RF4 module See Figure 6 35 Using another spectrum analyzer measure the output at the connector the spectrum measured as follows Frequency 47 875 MHz 10 H Amplitude 5 dBm No Yes Replace RF5 module Replace RF4 module Replace RF2 module or RF4 module Enter the correct gain and offset values of the RF3 module Refer to Reconfiguration of RF Modules on page 5 20 Restart the analyzer RSA3303A amp RSA3308A Service Manual Troubleshooting From page 6 72 Modify the signal generator controls as follows Frequency 100 MHz Level 50 dBm Change the reference level from 20 to 42 dBm in one dB step on the analyzer Is the spectrum displayed with correct amplitude Yes No Replace RF5 module Modify the signal generator controls as follows Frequency 100 MHz Level 0 dBm Change the reference level from 30 to 10 dBm in one dB step on the analyzer Is the spectrum displayed with correct amplitude Yes No Replace the step attenuator 1 To page 6 74 RSA3303A RSA3308A RF2 band check RSA3308A only Mod
72. missing items frayed cables and cables and damaged connec defective modules tors Cleaning Procedure Exterior To clean the analyzer exterior do the following Steps 1 Remove loose dust on the outside of the analyzer with a lint free cloth 2 Remove remaining dirt with a lint free cloth dampened in a general purpose detergent and water solution Do not use abrasive cleaners 3 Clean the light filter protecting the monitor screen with a lint free cloth dampened with either isopropyl alcohol or preferably a gentle general purpose detergent and water solution T CAUTION prevent getting moisture inside the analyzer during external cleaning use only enough liquid to dampen the cloth or applicator RSA3303A amp RSA3308A Service Manual 6 5 Maintenance 6 6 Inspection Interior To access the inside of the analyzer for inspection and cleaning refer to the Removal and Installation Procedures in this section Inspect the internal portions of the analyzer for damage and wear using Table 6 3 as a guide Defects found should be repaired immediately CAUTION To prevent damage from electrical arcing ensure that circuit boards and components are dry before applying power to the analyzer Table 6 3 Internal inspection check list Circuit boards Loose broken or corroded Remove failed module and solder connections Burned replace with a new module circuit boards Burned broken or cracked circuit run
73. modulation analysis time analysis similar Select the analog modulation analysis here 1 Press the DEMOD key on the front panel 2 Press the Analog Demod side key RSA3303A amp RSA3308A Service Manual Operating Instructions Selecting a Measurement Observe an AM signal change in time series as an example Press Demod side key 2 Press the MEAS SETUP key on the front panel to set the measurement parameter 3 Press the RUN STOP key to acquire the signal see Figure 2 32 Three views are displayed on the screen In the Demod mode m Overview All data of the specified block are displayed in the time domain The measurement range indicated by the green underline is specified in this view m Main view Displays the measurement result and waveform of the range specified in the overview they may be displayed in separate views In this case level changes of I and Q signals are displayed as the yellow and green traces respectively in the main view m Subview Spectrum is displayed as an auxiliary view by default You can specify the range in the overview to create the spectrum for the subview Tektronix RSA 3308A 03 08 08 14 42 45 MEASURE Cancel Back Frequency 100 MHz Acquisition Length 64 ms Span 20 kHz Input Att 20 dB Subview AM Demod 0 0 dBm WWWWWWWWXWWWWWWWWWWWW G FM Demod Overview 10 The data in the range indic
74. no diskette in the floppy drive After storage at temperatures outside the operating limits allow the chassis to stabilize at a safe operating temperature before applying power Ventilation Requirements analyzer is cooled by air drawn by external fans on the side panel To ensure proper cooling of the analyzer allow at least 5 cm clearance on both sides of and behind the analyzer The feet on the bottom of the analyzer provide the required clearance when set on flat surfaces The top of the analyzer does not require ventilation clearance RSA3303A amp RSA3308A Service Manual 2 3 Installation Applying Power Power on the analyzer using the following procedure AC Power Requirements analyzer operates from AC line frequency of 47 63 Hz over the range of 90 250 Volts without the need for configuration except the power cord Refer to page 2 2 for the power cord options The maximum power consumption 1 350 W Refer to Specifications for additional information on power and environmental requirements CAUTION Use only power cords that are approved for the country of use Using non approved power cords could result in fire or shock hazard Connecting the Power Plug the power cord into the AC input on the rear panel Cord Beg AC input e Figure 2 1 AC Input rear panel 2 4 RSA3303A amp RSA3308A Serv
75. plating Wiring and cables Loose plugs or connectors Firmly seat connectors Repair or Burned broken or frayed wiring replace the modules that have defective wires or cables Chassis Dents deformations and dam Straighten repair or replace aged hardware defective hardware Cleaning Procedure Interior To clean the analyzer interior do the following Steps 1 Blow off dust with dry low pressure deionized air approximately 9 psi 2 Remove any remaining dust with a lint free cloth dampened in isopropyl alcohol 75 solution and rinse with warm deionized water A cotton tipped applicator is useful for cleaning in narrow spaces and on circuit boards STOP For further cleaning contact your local Tektronix service center RSA3303A amp RSA3308A Service Manual __ i h h h OSOS Removaland Installation Procedures Preparation A A This subsection contains procedures for removal and installation of all mechani cal and electrical modules Any electrical or mechanical assembly or part listed in Section 10 of this manual is a module WARNING Before doing this or any other procedure in this manual read the Safety Summary found at the beginning of this manual Also to prevent possible injury to service personnel or damage to this analyzer s components read Installation in Section 2 and Preventing ESD in this section This subsection contains the following items m This preparatory information
76. program 4 8 Table 4 3 Test equipment 4 10 Table 4 4 Spurious measurement 4 40 Table 5 1 Test equipment 5 2 Table 6 1 Relative susceptibility to static discharge damage 6 3 Table 6 2 External inspection check list 6 5 RSA3303A amp RSA3308A Service Manual Table of Contents Table 6 3 Internal inspection check list 6 6 Table 6 4 Summary of procedures 6 9 Table 6 5 Tools required for module removal 6 10 Table 6 6 Normal supply voltages 6 78 Table 6 7 Test point voltages on A70 6 79 Table 6 8 Symptoms and faulty modules 6 80 Table 7 1 Power cord identification 7 2 Table 7 2 Standard accessories 7 3 Table 7 3 Optional accessories 7 3 RSA3303A amp RSA3308A Service Manual ix Table of Contents X RSA3303A amp RSA3308A Service Manual h l 8 General Safety Summary To Avoid Fire or Personal Injury Symbols and Terms A A Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it To avoid potential hazards use this product only as specified Only
77. range 10 MHz Agilent 53132A option 010 Checking the reference out Aging rate 5 10 10 day put frequency accuracy Accuracy 0 01 ppm at 10 MHz 1 MHz to 8 GHz Agilent E4418B Adjusting the signal generator output level 10 MHz to 8 GHz RF Flatness 396 Agilent E4412A Adjusting the signal generator Uncertainty of calibration factor data output level 2 RSS Range 500 MHz to 2 GHz Isolation Mini Circuits ZAPD 21 Checking intermodulation 18 dB Insertion loss 1 0 dB distortion 50 36 in male to male BNC Tektronix part number Signal interconnection connectors 012 1341 00 50 36 in male to male oignal interconnection connectors 50 36 in male N to male SMA Signal interconnection connectors 2m double shielded Tektronix part number Software based tests 012 0991 00 Impedance 50 connectors female Tektronix part number oignal termination for check BNC input male BNC output 011 0049 01 ing frequency accuracy Ratio 10 dB impedance 50 Inmet 18N 10 Checking flatness Bandwidth 8 GHz Mini Circuits BW S10W2 otandard accessary File operation otandard accessary File operation Created or updated with the proce 3 5 inch 720 K or 1 44 MB otoring flatness correction dures described on page 5 6 DOS compatible floppy disk data for the signal generators Item 1 and 2 RSA3303A amp RSA3308A Service Manual 4 11 Performance Tests
78. size screw heads 4 Flat bladed screwdriver Screwdriver for removing standard headed screws 5 SMA torque driver Accepts SMA hex head driver bits 003 1423 91 for SMA 3 5 connector I f 13 Retaining ring pliers Standard tool 114 inch minimum throw 14 Angle tiptweezers tip Angle tiptweezers Standardtool tool 16 Soldering iron Standard tool 17 Solder wick Standard tool 18 TRA CON Tra Bond BA 2114 6 10 RSA3303A amp RSA3308A Service Manual Removal and nstallation Procedures Analyzer Orientation Figure 6 1 shows how the sides of the analyzer are referenced in this manual Rg 221202 O 00000 00000 D0000 Figure 6 1 Analyzer orientation RSA3303A amp RSA3308A Service Manual 6 11 Removal and Installation Procedures Rear foot Cabinet Handle Foot Flip stand lt lt a gt Line cord Front cushion Ppt A Foot pad Figure 6 2 External modules RSA3303A amp RSA3308A Service Manual 6 12 Removal and nstallation Procedures 2 RF3 module RF4 module
79. so that the power meter reads 20 dBm 0 05 dBm e Disconnect the cable from the power sensor input 7 Modify the test hookup and preset the instrument controls a Hook up the instruments Connect the signal generator output through a 50 Q N N coaxial cable to the RSA3303A RSA3308A INPUT See Figure 4 11 on page 4 24 b Calibrate the analyzer gain Press CAL gt Calibrate Gain c Modify the analyzer controls m Press the FREQUENCY CHANNEL key on the front panel With the Center Freq side key set the frequency to 50 MHz using the numeric keypad Press the AMPLITUDE key on the front panel m Press the RF Atten Mixer side key to select RF Att m With the RF Att side key set the attenuation to 0 dB 8 Check the amplitude a Press the PEAK key on the front panel to place the marker on the peak b Check that the marker readout is within 20 dBm x 0 5 dB 9 Disconnect the test equipment Disconnect the cable at the analyzer input RSA3303A amp RSA3308A Service Manual 4 25 Performance Tests Input Attenuator Setting Check the input attenuator setting error is within the specified range for the Uncertainty Test analyzer Equipment One signal generator Item 1 Required q One 50 N N coaxial cables Item 10 Prerequisites Refer to page 4 10 1 Prepare for the test a Set the generator controls Frequency 50 MHz Amplitude 25 dBm RF output On
80. starting up the analyzer No No Replace the CPU board Unplug the coaxial cable W30 on the RF5 module See Figure 6 35 Using another spectrum analyzer measure the output at the connector Yes Yes Replace LCD display LCD inverter or A62 Front connection board the spectrum measured as follows Frequency 51 20 MHz Amplitude 16 dBm No Replace RF5 module Yes Unplug the coaxial cable W30 on the RF5 module See Figure 6 35 Using another spectrum analyzer measure the output at the connector Replace Hard disk drive or A62 Front connection board the spectrum measured as follows Frequency 51 20 MHz Amplitude 16 dBm No Replace RF5 module Yes Replace A40 Memory board or A50 Mother board Figure 6 33 Troubleshooting procedure 2 Display and CPU system RSA3303A amp RSA3308A Service Manual 6 69 Troubleshootine This procedure helps you determine whether the signal path is bad Baseband check Set the analyzer as follows Center frequency 10 MHz Span 1 MHz Reference level 0 dBm Set the signal generator as follows and connect it to the analyzer RF input Refer to Performance Verification Frequency 10 MHz Level 10 dBm the spectrum displayed as follows Frequency 10 MHz 10Hz Amplitude 10 dBm Yes No Unplug the coaxial cable W30 on the RF5 module See Figure 6 35 Using ano
81. that you need to properly do the procedures that follow m List of tools required to remove and disassemble all modules m Nine module locator diagrams for finding the External modules see Figure 6 2 RF modules see Figure 6 3 CPU board and disk modules see Figure 6 4 Mother board and its daughter boards see Figure 6 5 Bottom modules Power supply see Figure 6 6 Bottom modules 1 for RSA3303A see Figure 6 7 Bottom modules RF1 for RSA3308A see Figure 6 8 Front panel modules see Figure 6 9 and Chassis modules see Figure 6 10 in this analyzer B Procedures for removal and reinstallation of the electrical and mechanical modules m disassembly procedure for removal of all the major modules from the analyzer at one time and for reassembly of those modules into the analyzer Such a complete disassembly is normally only done when completely cleaning the analyzer Instructions for doing the actual cleaning are found under nspection and Cleaning at the beginning of this section WARNING Before doing any procedure in this subsection disconnect the power cord from the line voltage source Failure to do so could cause serious injury or death RSA3303A amp RSA3308A Service Manual 6 7 Removal and Installation Procedures List of Modules Section 10 lists all modules General Instructions STOP READ THESE GENERAL INSTRUCTIONS BEFORE REMOVING A MODULE First read over the Summary of Pr
82. the analyzer and the generator s Disconnect the GPIB cables from all the ports RSA3303A amp RSA3308A Service Manual 4 19 Performance Tests Manual Tests The manual tests include the following items m 10 MHz reference output m Absolute amplitude accuracy Input attenuator setting uncertainty m Spectrum purity m 3rd order intermodulation distortion m Frequency readout accuracy m Spurious response m Displayed average noise level m Residual response 4 20 RSA3303A amp RSA3308A Service Manual Performance Tests 10 MHz Reference Output This procedure checks that the output frequency from the REF OUT connector Test the rear panel is within the specified range for the analyzer Equipment One frequency counter Item 5 Required qu One 50 BNC coaxial cable Item 9 One 50 terminator Item 13 Prerequisites Refer to page 4 10 The frequency counter must have been operating for a warm up period of at least 24 hours RSA3303A RSA3308A rear GAGE ecce 2 Frequency counter A CH1 input 50 Q terminator 50 BNC coaxial cable Figure 4 7 Initial test hookup 1 Prepare for the test a Hook up the frequency counter Connect REF OUT on the rear panel of the analyzer through a 50 Q precision coaxial cable and a 50 Q precision terminator to Channel 1 of the coun
83. the analyzer so its bottom 1s down on the work surface and its front is facing you Remove the front panel assembly See Figure 6 26 a Unplug the preamplifier power cable at J810 on the A50 Mother board b Unplug the cable at J60 on the A50 Mother board c Remove the two screws securing the front panel assembly to the main chassis at each side Lift the front panel assembly away Reinstallation Reverse step 3 to reinstall the front panel assembly RSA3303A amp RSA3308A Service Manual 6 55 Removal and Installation Procedures 6 56 Rotary Encoder EN Ss G gt gt 9 2 O j 9 p S D le SEN E d p 55399 Te c m HH OQ S 29 9999 o 99859 S SVS W288 Figure 6 26 Front panel assembly removal Assemble equipment and locate module to be removed a You will need a 12 mm nutdriver Item 7 and a inch hex wrench Item 10 b Locate the rotary encoder in Figure 6 9 page 6 19 Orient the front panel assembly Set the front panel assembly so its back is down on the work surface and its front is facing you Remove the general purpose knob See Figure 6 27 Loosen the setscrew securing the knob using the inch hex wrench Pull the knob away Remove the rotary encoder See Figure 6 27 a Unplug the rotary encoder cable at J140 on t
84. the generator for the GPIB command system HP or Anritsu The HP setting also supports Agilent and Rohde amp Schwarz products Press the GPIB Address side key and set the generator address Press the Measurement side key A file selection box appears the default directory is My Documents Enter a file name for example BBFlatness pv using the keyboard If necessary change the directory Click the Open button with the mouse The test starts The result is written in text format to the specified file a b d ri NOTE ri e f g h m El m ri ri Check against limits Select the upper left view with the VIEW SELECT key Press the VIEW SCALE key Press the Vertical Scale side key and set the value to 1 dB Press the Vertical Stop side key and set the value to 40 5 dB Check that the maximum and the minimum values are within 0 5 dB 4 Check the IF flatness in the RF RSA3303A RFI RSA3308A band a Press the side key Cancel Back twice IF Flatness PV b Set the GPIB address of the generator Press the SG side key to select the manufacturer of the generator HP or Anritsu Press the GPIB Address side key and set the generator address RSA3303A amp RSA3308A Service Manual Performance Tests c Press the Measurement side key A file selection box appears the default directory is My Documents d Enter a file name for example F Flatness pv using the keyboard
85. the test equipment Disconnect the cable at INPUT RSA3303A amp RSA3308A Service Manual 5 21 Adjustment Procedures Reconfiguration of the When replacing the YTF unit for RSA3308A do the following procedure YTF unit RSA3308A Only Equipment One signal generator Item 2 Required T One 50 N N coaxial cable Item 8 1 Modify the unit DAC setting a Pressthe CAL key on the front panel b Press the side key Service Password c Input 270833 and then press ENTER using the numeric keypad d Press the side key DEBUG Tune DAC e Press the Gain side key and input the gain of the YTF unit f Press the Offset side key and input the offset of the Y TF unit 2 Prepare for the adjustment a Set the signal generator controls lt u ss 6500 MHz Amplitude 10 dBm RFE Output On b Hook up the signal generator Connect the generator output through a 50 Q N N coaxial cable to the analyzer INPUT See Figure 5 11 RSA3308A Signal generator Output 50 N N coaxial cable Figure 5 12 Test hookup 5 22 RSA3303A amp RSA3308A Service Manual Adjustment Procedures Initialize the analyzer Press the SYSTEM key on the front panel Press the Reset All to Factory
86. trigger comparator data source Pre Post trigger setting IF level trigger setting range Event trigger Option 02 Frequency domain Mask resolution Trigger level Real time event detection bandwidth Time domain Trigger level External trigger input Input voltage Input impedance Trigger output Trigger marker position timing uncertainty Table 1 15 Measurement function Characteristics S A mode Demod mode Time mode Pulse measurement Pulse length 1 20 Description Free run and Triggered IF Level comparator External TTL IQ Option 02 power comparator A D output IF level trigger Frequency amplitude Option 02 Time amplitude Option 02 Trigger position is settable from 0 to 100 of total data length 1 to 100 100 is full scale of A D output 1 bin 0 to 60 dBfs 5 MHz 1024 point FFT 50 overlapping 0 to 40 dBfs High 1 6 to 5 V Low 0 to 0 5 V gt 2 KQ High gt 2 0 V Low lt 0 4 V output current lt 1 mA 2 sample points Description Noise power Channel power Adjacent channel power ratio Occupied bandwidth Emission bandwidth Carrier to Noise ratio Carrier frequency Spurious Analog demodulation AM FM PM Digital demodulation refer to Table 1 11 vs Time Power vs Time Frequency vs Time vs Time Power vs Time Frequency vs Time CCDF Pulse measurement Pulse width Pulse peak power On Off ratio Pulse ripple Pulse repetition interval Duty cycle P
87. value is 142 dBm Hz or less RSA3303A amp RSA3308A Service Manual 4 43 Performance Tests Residual Response Test Check that the residual noise level is within the specified range for the analyzer Equipment None Required Prerequisites Refer to page 4 10 RSA3303A RSA3308A N O OOOO 29 peono Ol ca Figure 4 17 Initial test hookup l Prepare for the test a Initialize the analyzer Press the SYSTEM key on the front panel Press the Reset to Factory Defaults side key b Modify the default settings 4 44 Press the FREQUENCY CHANNEL key on the front panel With the Center Freq side key set the frequency to 10 MHz using the general purpose knob Press the SPAN key on the front panel With the Span side key set the span to 20 MHz using the general purpose knob Press the AMPLITUDE key on the front panel With the Ref Level side key set the level to 30 dBm using the general purpose knob RSA3303A amp RSA3308A Service Manual Performance Tests Press the RBW FFT key on the front panel Press the RBW FFT side key to select Man With the RBW side key set the RBW to 100 kHz using the general purpose knob Press the TRACE AVG key on the front panel Press the Trace 1 Type side key and select Average Press the Number Of Averages side key
88. visit www tektronix com to find contacts in your area Warranty 2 Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one 1 year from the date of shipment If any such product proves defective during this warranty period Tektronix at its option either will repair the defective product without charge for parts and labor or will provide a replacement in exchange for the defective product Parts modules and replacement products used by Tektronix for warranty work may be new or reconditioned to like new performance All replaced parts modules and products become the property of Tektronix In order to obtain service under this warranty Customer must notify Tektronix of the defect before the expiration of the warranty period and make suitable arrangements for the performance of service Customer shall be responsible for packaging and shipping the defective product to the service center designated by Tektronix with shipping charges prepaid Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located Customer shall be responsible for paying all shipping charges duties taxes and any other charges for products returned to any other locations This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care Tektronix shall not
89. 0 kHz to 10 MHz 151 dBm Hz 10 MHz to 100 MHz 151 dBm Hz 100 MHz to 1 GHz 150 dBm Hz 1 GHz to 2 GHz 150 dBm Hz 2 GHz to 3 GHz 142 dBm Hz 8 GHz to 5 GHz 142 dBm Hz 5 GHz to 8 GHz RSA3303A amp RSA3308A Service Manual 1 13 Specifications Table 1 6 Dynamic range Cont Characteristics ACLR 3GPP down link test model 1 16 ch Typical Local feed through to input connecter Typical Table 1 7 Spurious response Characteristics Image Suppression Typical 19 F 2nd and 3 d IF Alias suppression Typical Description 60 dB b MHz offset 63 dB 10 MHz offset 66 dB b MHz offset 70 dB 10 MHz offset 40 dBm local frequency 4 2 to 5 GHz 55 dBm local frequency 5 to 6 GHz 60 dBm local frequency 6 to 7 GHz 60 dBm local frequency 7 to 7 7 GHz RSA3308A only Description 75 dB RF RF1 70 dB RF2 RF3 RSA3308A only 80 dB RF RF1 75 dB RF2 RF3 RSA3308A only 65 dB Baseband Residual response Reference level 30 dBm RBW 100 kHz Baseband 1 to 20 MHz RF 0 5 to 3 GHz RSA3303A RF1 0 5 to 3 5 GHz RSA3308A RF2 3 5 to 6 5 GHz RSA3308A RF3 5 to 8 GHz RSA3308A 93 dBm Span 20 MHz 90 dBm Span 2 5 GHz 90 dBm Span 3 GHz 85 dBm Span 3 GHz 85 dBm Span 3 GHz V Spurious response Span 10 MHz Reference level 0 dBm RBW 50 kHz Baseband 10 MHz RF RF1 2 GHz RF2 5 GHz RSA3308A RF3 7 GHz RSA3308A 73 dBc
90. 0HM SEMI RIGID W108 FINE ATT TO STEP ATT MODULE RF DOWN CONVERTER STEP ATT WCA230 GROMMET PLASTIC NYLON BLACK RING 15MM ID CA ASSY RF 500HM SEMI RIGID W109 STEP ATT TO A310 RSA3303A amp RSA3308A Service Manual Replaceable Parts See Figure 10 11 A 9 SON Ti MW g s lt o amp o o k s v AS J 54 7 M 2 4 9 7 f DO i 7 Ne M N D 6 22 CA 24 7 Z B f Ur NF V A ll D j f EE W f duke 5 TA L gee WS X ff QO lt N y 27 277 y P aus Am IJ LS 2 37 N 9 Figure 10 9 Bottom modules RF1 RSA3303A 10 21 RSA3303A amp RSA3308A Service Manual Replaceable Parts Replaceable parts list Fig amp index number 10 10 1 2 10 22 Tektronix part number 174 C038 XX 211 A273 XX 148 A079 XX 174 C039 XX 174 C040 XX 386 A874 XX 174 B944 XX 174 C037 XX 211 A151 XX 119 A960 XX 671 B190 XX 119 A864 XX 407 A725 XX 211 A152 XX 211 0871 XX 211 151 407 A726 XX 119 B186 XX 211 A152 XX 119 B175 XX 348 0949 XX 174 B949 XX 174 B948 XX Serial No effective Serial No discont d Qty Name amp description FOR RSA3308A ONLY CABLE ASSY RF SEMI RIGID W121 ATT TO SW SCREW MACHINE M2 5
91. 10 A D board m A20 DDC board m A30 Trigger board m Power supply 1 m Power supply 2 m Power supply 3 m A100 Interconnection board Step attenuator 1 Step attenuator 2 m input relay m Front panel assembly m Front bezel m Menu buttons m Front panel m Rotary encoder m LCD display m Fan m Side panel assembly m Front cushion 6 22 m Cabinet modules m RF4 module 6 27 m RF5 module m Board guide bracket Floppy disk drive A62 Front connection board A40 Memory board A50 Mother board A70 DC power board A71 AC power board Line filter Principal power switch Band relay Programmable band pass filter 150 interface board A60 Front key board A61 Power switch board RF input connector Preamp power connector 6 61 Rear panel modules 6 9 Removal and Installation Procedures Equipment Required Most modules in this analyzer can be removed with a screwdriver with a size 2 Phillips tip Use this tool whenever a procedure step instructs you to remove or install a screw unless a different size screwdriver is specified in that step All equipment required to remove and reinstall a module are listed in the first step of each procedure Table 6 5 Tools required for module removal i Tektronix Description part number 1 Screwdriver handle Accepts 14 inch hex head driver tips 2 1 Phillips tip Phillips driver bit for 1 size screw heads 3 2 Phillips tip Phillips driver bit for 2
92. 20 G half sine 11 ms duration Three shocks in each direction along each major axis total of 18 shocks Cooling clearance Bottom 20 mm 0 79 in Both sides 50 mm 1 97 in Hear 50 mm 1 97 in RSA3303A amp RSA3308A Service Manual 1 23 Specifications Table 1 23 Certifications and compliances Characteristic Description EC Declaration of Conformity EMC Meets intent of Directive 89 336 EEC for Electromagnetic Compatibility Compliance was demonstrated to the following specifications as listed in the Official Journal of the European Communities EN 61326 EMC requirements for Class A electrical equipment for measurement control and laboratory use 1 IEC 61000 4 2 Electrostatic discharge immunity Performance criterion B IEC 61000 4 3 RF electromagnetic field immunity Performance criterion A IEC 61000 4 4 Electrical fast transient burst immunity Performance criterion B IEC 61000 4 5 Power line surge immunity Performance criterion B IEC 61000 4 6 Conducted RF immunity IEC 61000 4 11 Performance criterion A Voltage dips and interruptions immunity Performance criterion B EN 61000 3 2 AC power line harmonic emissions EN 61000 3 3 Power line voltage fluctuation flicker Australia New Zealand Declaration of Complies with EMC provision of Radiocommunications Act per the following Conformity EMC standard s AS NZS 2064 1 2 Industrial Scientific and Medical Equipment 1992 EC Declaration of Conformity Low Vo
93. 20 kHz Trace 1 Normal Input Att 30 dB Trace 2 Off 10 dBm 0 dBm reference line 10 dB A A Center 100 MHz Spectrum Analyzer Measurement Off Ref Level dBm 10 Figure 2 18 Reference level of 10 dBm RSA3303A amp RSA3308A Service Manual Span 20 kHz AMPLITUDE Cancel Back Ref Level dBm 10 Auto Level RF Atten Mixer Auto RFAtt Mixer Mixer Level dBm Nominal 5 Vertical Scale dB div 10 Vertical Units dom Bu V W Corrections 2 21 Operating Instructions 2 22 Starting and Stopping Data Acquisition Use the RUN STOP key to start or stop data acquisition There are two acquisition modes the continuous mode in which data is acquired repeatedly and the single mode in which one waveform is acquired You can select the mode using the Trig menu MEASUREMENT FREQUENCY RUN CHANNEL STOP RUN STOP key TRIG lt TRIG key RBW AMPLITUDE By default the analyzer is now acquiring data in the continuous mode 1 Press the RUN STOP key to stop data acquisition When acquisition stops PAUSE is shown in the status indicator on screen see Figure 2 19 Status indicator Tektronix RSA 3308A 03 08 08 14 16 04 MPLITUDE ad Frequency 100 MHz RBW 200 Hz Cancel Back Span 20 kHz Trace 1 Normal Ref Level
94. 22213225 139 ceases case MPO EE RE 2 9 Repackaging Instructions 2 10 Installed Options 2 10 Operating Instructions 2 11 PISDOLOHOBS shes 2 12 Displaying SpOGCUDIW J uuu usss o9 EE OITUTCNPEE SAC aahh isa 2 16 Usine Markers and Peak Search less 2 23 Using Averaging and Comparison Displays 2 28 Display Me a 2 31 wees eee les 2 34 Modulation 2 38 W MAOS 2 46 Turne OI TUS POW ete ae ee eee 2 48 RSA3303A amp RSA3308A Service Manual i Table of Contents Theory of Operation lilin el l nc uz oie amipuy 3 1 bucked ee 3 2 bucked bes upa wp uwa 3 2 RE Module 3 3 REA MOGUIC ap asp bes ost 3 3 Board u uyay tee bucked 3 4 A20 DDC uy r she bucked esau bes st Na p eon 3 4 A30 Trigger Board Optional
95. 2nd LO signal and frequency converted into the 219 IF signal of 422 MHz Same with the case of 15 Local Oscillator frequency of 214 Local Oscillator is controlled with a synthesizer circuit RF4 module to stabilize LO output frequency The 2nd signal is sent to the 3 Converter In the 3 d Converter the signal is mixed with the 3 LO signal and frequency converted into the 3 IF signal of 39 MHz After selected with a band switching relay located at the input section of the 3 9 Converter the 24 IF signal directly sent from the 15t Converter in RF2 3 band mode is also frequency converted into the 3 IF signal of 39 MHz RSA3303A amp RSA3308A Service Manual Theory of Operation RF5 Module The RF5 module consists of 3 d IF Gain block Oscillator block and 10 MHz Reference Oscillator The Oscillator block contains the 3 Local Oscillator and an oscillator of Sampling Clock signal to be supplied to A D Converter The Gain block consists of a Step Amplifier of 10 dB step with the maximum gain of 50 dB and a Step Attenuator with the maximum attenuation of 30 dB This block maintains the 314 IF signal to be sent to A D Converter at an appropriate level and adjusts the accuracy of conversion gain Both the 314 LO signal and A D clock signal generated in the Oscillator block are highly stabilized signals locked with a 10 MHz reference signal and are output to the 3 Converter and A10 A D board respectively The 10 M
96. 303A amp RSA3308A Service Manual xiii Service Safety Summary XIV RSA3303A amp RSA3308A Service Manual This is service manual for RSA3303A RSA3308A Real Time Spectrum Analyzers The manual contains information needed to service the analyzer to the module level Manual Structure This manual is divided into sections such as Specifications and Theory of Operation Further some sections are divided into subsections such as Product Description and Removal and Installation Procedures Sections containing procedures also contain introductions to those procedures Be sure to read these introductions because they provide information needed to do the service correctly and efficiently The manual section name and a brief description of each is given below m Specifications contains a description of the analyzer and the applicable characteristics m Operating Information includes general information and operating instruc tions m Theory of Operation contains circuit descriptions that support service to the module level Performance Verification contains procedures for confirming that the analyzer functions properly and meets warranted limits Adjustment Procedures contains procedures for adjusting the analyzer to meet warranted limits Maintenance contains information and procedures for performing preventive and corrective maintenance of the analyzer These instructions include clean
97. 47 TRIG IN b Lift up the the A40 board 4 Reinstallation Reverse step 3 to reinstall the A40 board and interconnect cables A70 DC Power Board 1 Assemble equipment and locate module to be removed a You will need 2 Phillips screwdriver Items 1 and 3 b Locate the A70 DC power board in locator diagram Mother board and its daughter boards Figure 6 5 page 6 15 c Do step 3 in the A70 A D Board procedure on page 6 36 to remove the board support bracket 2 Orient the analyzer Set the analyzer so its bottom is down on the work surface and its front is facing you 3 Remove the rear support bracket See Figure 6 19 a Remove the two screws securing the bracket to the A70 board b Remove the four screws securing the bracket to the main chassis c Liftthe bracket away 4 Remove the A70 DC power board See Figure 6 19 a Unplug the fan power cable from J300 and J302 b Unplug the cable W75 GPIB from J410 c Liftup the A70 board S Reinstallation Reverse step 3 to reinstall the A70 board and interconnect cables RSA3303A amp RSA3308A Service Manual 6 39 Removal and Installation Procedures Board support bracket Rear support bracket RF5 module A70 DC power board N Z GPIB A40 Memory board A30 Trigger board Option 02 only V DDC board Figure 6 19 Daughter boards removal 6 40
98. 4MA DCRES 0 10HM SCREW MACHINE M3X8MM L FLH STL ZN C CROSS REC CA ASSY SP ELEC 2 18AWG 10CM L W FASTON BOTH ENDS W TUBE CA ASSY SP ELEC 2 18AWG 15CM L W HOLDER HLDR 5P TO CA ASSY SP ELEC 2 18AWG 13CM L W FASTON TO HLDR 3P W TUBE CA ASSY SP ELEC 2 18AWG 15CM L W HOLDER HLDR 5P TO 3P CA ASSY SP ELEC 2 18AWG 9CM L W HOLDER HLDR 5P TO 3P RSA3303A amp RSA3308A Service Manual Replaceable Parts Figure 10 8 Bottom modules Power supply 10 19 RSA3303A amp RSA3308A Service Manual Replaceable Parts Replaceable parts list Fig amp index number 10 9 1 10 20 Tektronix part number 211 A152 XX 119 B175 XX 174 B950 XX 174 B944 XX 211 A273 XX 148 A079 XX 407 A697 XX 211 A152 XX 174 B951 XX 119 B180 XX 348 0949 XX 174 B952 XX Serial No effective Serial No discont d Qty Name amp description FOR RSA3303A ONLY SCREW MACHINE M2 5X8MM L PNH STL NI PLCROSS REC W KOGATA PLAIN amp SPLIT WSHR MODULE RF DOWN CONVERTER FINE ATT WCA230A amp WCA280A CA ASSY RF 500HM SEMI RIGID W107 SW TO FINE ATT CABLE RF SEMI RIGID W101 N CON TO SW SCREW MACHINE M2 5X18 L PNH STL NI PL CROSS REC W FLAT KOGATA amp LOCK WASHER RELAY COAX COIL 12V DC 18GHZ IL lt 0 5DB VSWR 1 5 CONN BRACKET SW amp YTF A5052P SCREW MACHINE M2 5X8MM L PNH STL NI PL CROSS REC W KOGATA PLAIN amp SPLIT WSHR CA ASSY RF 50
99. 5 dBm using the general purpose knob Press the RF Atten Mixer side key to select Rf Att With the RF Att side key set the attenuation to 15 dB using the general purpose knob Press the RBW FFT key on the front panel Press the RBW FFT side key to select Man Press the Extended Resolution side key to select On Press the RBW side key set the RBW to 2 kHz g Modify the generator output level RSA3303A amp RSA3308A Service Manual Press MARKERS lt q or gt to place the marker on the signal of 1999 85 MHz Adjust the generator Item 2 output level so that the signal level is 10 dBm Press MARKERS lt q or gt to place the marker on the signal of 2000 15 MHz Adjust the generator Item 4 output level so that the signal level is 10 dBm 4 33 Performance Tests 2 Check the amplitude a Modify the analyzer controls Press TRACE AVG Trace 1 Type Average Press the Number Of Averages side key and set the value to 50 using the general purpose knob Press the MARKER SETUP key m Press the Markers side key to select Delta b Measure the amplitude for the signals of 1999 55 MHz and 2000 45 MHz m Press the Select Marker side key to select 1 m Place the first marker at the signal of 1999 55 MHz using the MARKERS lt q or gt key m Press the Select Marker side key to select 2 m Place the second marker at the signal of 2000 45 MHz using the MARKERS lt q P key
100. 510 Hz RF3 Frequency 7 GHz Span 1 MHz RSA3308A only Marker 1 7 kHz Carrier frequency measurement 710 Hz 2 Hz p p 1 bin 0 196 1 x 10 9 after 30 days of operation 1 x 10 7 after 30 days of operation 1x 1077 10 to 40 C 2 x 10 7 within one year after calibration 0 dBm 10 MHz 10 to 6 dBm Spurious level 80 dBc within 100 kHz offset Description 100 dBc Hz 105 dBc Hz 125 dBc Hz RSA3303A amp RSA3308A Service Manual Specifications Table 1 3 Noise sideband Characteristics Frequency 1000 MHz Frequency 2000 MHz Frequency 6000 MHz RSA3308A only Typical Frequency 1000 MHz Frequency 2000 MHz Description 100 dBc Hz 105 dBc Hz 105 dBc Hz 105 dBc Hz 112 dBc Hz 132 dBc Hz 135 dBc Hz 135 dBc Hz 96 dBc Hz 104 dBc Hz 105 dBc Hz 105 dBc Hz 112 dBc Hz 132 dBc Hz 135 dBc Hz 135 dBc Hz 87 dBc Hz 104 dBc Hz 105 dBc Hz 105 dBc Hz 112 dBc Hz 128 dBc Hz 130 dBc Hz 130 dBc Hz Noise sideband 103 dBc Hz 108 dBc Hz 108 dBc Hz 108 dBc Hz 115 dBc Hz 135 dBc Hz 138 dBc Hz 138 dBc Hz 99 dBc Hz 107 dBc Hz 108 dBc Hz 108 dBc Hz 115 dBc Hz 135 dBc Hz 138 dBc Hz 138 dBc Hz RSA3303A amp RSA3308A Service Manual Specifications Table 1 3 Noise sideband Cont Characteristics Frequency 6000 MHz RSA3308A only Table 1 4 Input Characteristics Signal input Input connector I
101. 52 RSA3303A amp RSA3308A Service Manual Adjustment Procedures i Ae Adjustment Procedures Purpose Adjustment Interval Adjustment After Repair This section contains information needed to manually adjust the RSA3303A and RSA3308A Real Time Spectrum Analyzers The section is divided into three subsections General information about adjusting the analyzer m A list of equipment required to perform the adjustments m The procedures for adjusting the analyzer This procedure returns the analyzer to conformance with its Warranted Charac teristics as listed in Section 1 Specification It can also be used to optimize the performance of the analyzer For performance verification procedures refer to Section 4 Performance Verification Generally these adjustments should be done every 12 months After the removal and replacement of a module due to electrical failure perform the adjustment procedures in this section Requirements for Performance Personnel Warm Up Period Test Equipment Before doing the adjustments note the following requirements This procedure is only to be performed by trained service technicians This analyzer requires a 20 minute warm up time in a 20 C to 30 C environ ment before it is adjusted Adjustments done before the operating temperature has stabilized may cause errors in performance Table 5 1 lists all test equipment required to adjust the analyzer RSA3303A amp RSA3308A Serv
102. 6 16 2 Orient the analyzer Set the analyzer so its top is down on the work surface and its rear is facing you 3 Remove the line filter See Figure 6 22 a Unplug the cable W92 from the line filter b Using a screwdriver with a size Phillips 1 tip unscrew the one nut that secures the ground lead to the rear chassis c Using a screwdriver with a size Phillips 2 tip remove the two screws securing the line filter to the rear chassis Remove the line filter 4 Reinstallation Reverse step 3 to reinstall the line filter Principal Power Switch 1 Assemble equipment and locate module to be removed No tools are needed Locate the principal power switch in the locator diagram Bottom modules Power supply Figure 6 6 page 6 16 2 Orient the analyzer Set the analyzer so its top is down on the work surface and its right side is facing you 3 Remove the principal power switch See Figure 6 22 a Unplug the cables from the principal power switch b Pressing the catches at the top and the bottom of the switch pull the switch out 4 Reinstallation Reverse step 3 to reinstall the principal power switch RSA3303A amp RSA3308A Service Manual 6 47 Removal and Installation Procedures Procedures for RF1 Modules on the Instrument Bottom Read the Access Procedure on page 6 21 before proceeding The procedures are presented in the following order A100 Interconnection 1 Board 6 48 100 Interconnecti
103. 6 24 Cabinet Modules 000000000 Figure 6 13 Front cushion removal 1 Assemble equipment and locate modules to be removed a Have a pair of needle nose pliers handy Item 12 b Locate the modules to be removed in the locator diagram External Modules see Figure 6 2 Orient the analyzer Set the analyzer so the left side is down on the work surface and its handle is facing upwards Remove the handle a Insert the tips of a pair of needle nose pliers Item 12 into the hole of either handle cap Push and hold to depress the handle release b While holding the handle release pull the handle out of the slot in the handle cap Repeat the procedure to remove the handle from the other handle cap c Reverse the procedure to reinstall RSA3303A amp RSA3308A Service Manual Removal and nstallation Procedures 4 Remove the handle caps a Insert the retaining ring pliers Item 13 into the opening created in the handle cap when you removed the handle b While using the pliers to expand the handle cap outward grasp it and snap it away from the cabinet c Repeat procedure to remove the remaining cap as needed 4 reinstall push the cap s back on 5 Remove the flip stand a Grasp the flip stand by both sides near where it joins each flip stand foot b Compress the flip stand until the flip stand ends clear the flip stand feet To reins
104. 6 38 A30 trigger board p 6 38 A40 Memory board p 6 38 A70 DC power board p 6 39 A50 Mother board p 6 41 Figure 6 11 Guide to removal procedures RSA3303A amp RSA3308A Service Manual the module the module in Figure 6 6 NO in Figure 6 9 Yes Procedures for Power Supply on the Bottom Power supply 1 amp 2 AT1 AC power board Power supply 3 Line filter Principal power switch Procedures for RF1 Modules A100 Interconnection board Step attenuator 2 Input relay Programmable BPF Step attenuator 1 Band relay Procedures for Front Panel Modules Front panel assembly p 6 55 Rotary encoder p 6 56 Front bezel p 6 57 Menu buttons p 6 57 Front panel p 6 57 A60 Front key board p 6 58 A61 Power switch board p 6 58 Preamp power connector p 6 58 RF input connector p 6 59 LCD display p 6 59 Procedures for Chassis Modules Fan p 6 61 Side panel assembly p 6 61 Board guide bracket p 6 63 Rear panel modules p 6 64 6 21 Removal and Installation Procedures Procedures for External Modules Read the Access Procedure on page 6 21 before proceeding The procedures are presented in the following order Line Cord 1 Cabinet 1 6 22 Line cord Cabinet Front cushion Cabinet modules Orient the analyzer Set the analyzer so its bottom is down on the work surface and its rear is facing you Remove the line cord Remove the line cord from the rear cover See Figure 6 12 Reinstallatio
105. C3 3 C3 c BE NO 1209 0 C2 CO Km CO CO C CIO L I J JO Stand INS Figure 2 6 Setting up the stand RSA3303A amp RSA3308A Service Manual 2 7 Installation Powering Off the Analyzer 2 8 A Turn off the power switch on the front panel CAUTION When you power on or off the analyzer you must use the front panel ON STANDBY switch Failure to do so may cause the operating system to shut down improperly When you power on the analyzer again wait at least 10 seconds after the last power off When you press the front panel ON STANDBY switch the analyzer starts a shutdown process including a Windows shutdown to preserve settings and then power off The LED next to the power switch changes to orange Avoid using the rear panel power switch or disconnecting the power cord to power off the analyzer To completely remove power to the analyzer perform the shutdown just described and then set the power switch on the rear panel to off NOTE Turning off the front panel ON STANDBY switch does not shut down the principal power supply completely When you turn off the principal power supply use the principal power switch on the rear panel Turning off the principal power switch turns off the front panel LED When you do not use the analyzer for a long time or in case of emergency you should unplug the power cable RSA3303A amp
106. E dBm Input Att 20 dB Trace 2 Off Figure 2 19 Status indicator 2 Acquire data in the single mode using the following steps a Press the TRIG key on the front panel b Press the Repeat side key and select Single c Press the RUN STOP key to acquire data One waveform is acquired and displayed every time you press the key 3 Press the Repeat side key again and select Continuous to return to the continuous mode When acquisition starts READY 15 displayed in the status indicator indicating that the analyzer is ready for trigger RSA3303A amp RSA3308A Service Manual Operating Instructions Using Markers and Peak Search The markers are used to measure amplitude or frequency and also to find the peak signal One or two markers can be displayed as Marker and 2 To measure an absolute value only Marker 1 is used and that is called single marker mode To measure a relative value Markers and 2 are used and that 15 called delta marker mode To position the markers use the general purpose knob or the numeric input keypad Measuring witha 1 Press the MARKER SETUP key on the front panel Single Marker DEMOD SCALE LINES MARKERS oi MARKER Selects the behavior of the markers TIME DOB E H 2 Press the Markers side key to select Single The marker LJ appears at center on the waveform 3 The Marker X Position menu item is selected by default Turn the g
107. EW SCALE Auto Scale m Press the PEAK key on the front panel to place the marker on the peak signal Record the maximum amplitude at the marker readout Using the general purpose knob search for the minimum amplitude in the graph Record the minimum amplitude at the marker readout B Check that the maximum and the minimum values are within 1 7 dB Repeat substeps c to g for the RF3 band 9 Change the signal generator a b Disconnect N N cable from the signal generator Item 2 output Connect the N N cable to the signal generator Item 1 output See Figure 4 6 on page 4 12 again Remove the floppy disk from the analyzer 10 Check spurious response in the RF RSA3303A RFI RSA3308A band a b Press the side key Cancel Back twice Spurious PV Modify the analyzer settings Press the SG side key to select the manufacturer of the generator HP or Anritsu m Press the GPIB Address side key and set the generator address Press the Threshold side key and set the value to 73 dBc Make sure that Band the top side key is set to RF1 Press the Measurement side key A file selection box appears the default directory 15 My Documents Enter a file name for example SyntheTablel pv using the keyboard If necessary change the directory Click the Open button with the mouse The test starts If spurious occurred the frequency is written in text format to the speci
108. Hz Reference Oscillator is configured around an OCXO Oven Controlled Crystal Oscillator with extremely high frequency stability It is used as the reference clock source for all the oscillators including the frequency synthesizer circuits Circuits such as the input circuit of external 10 MHz reference signal internal external reference switching circuit and 10 MHz reference output circuit are also contained in the RF5 module RF4 Module The RF4 module is comprised of synthesizer circuits The synthesizer consists of multiple PLL Oscillator units of low noise type locked with the 10 MHz reference signal By changing the oscillation frequency of these PLL Oscillator in fine steps 15t LO frequency can be tuned in the range of 4 GHz to 8 GHz while maintaining a good level of C N The synthesizer also contains a circuit for generation of a 50 MHz signal to be used as the reference for the calibration signal PLL circuitry of the 2nd Local Oscillator a circuit for generation of DDS signal to be used as the reference signal for the 314 Local Oscillator and other components RSA3303A amp RSA3308A Service Manual 3 3 Theory of Operation 10 A D Board 20 Analog signals such as the IF signal sent from the Down Converter block are converted into digital format with a high speed high accuracy A D converter and sent to the 20 DDC board via the 50 Mother board The A D board contains input circuits for three
109. Hz span Typical QPSK Center frequency 1 GHz Center frequency 2 GHz Center frequency 3 GHz Center frequency 5 GHz RSA3308A only symbol display Frequency error measurement and Origin offset measurement Q and Trellis displays 1 to 16 symbols EVM Magnitude error Phase error Waveform quality measurement Frequency error measurement and Origin offset measurement Binary Octal Hexadecimal Measured amplitude vs Reference amplitude 1 dB compression measurement Phase error vs Reference amplitude Probability of excess vs Power level Crest factor measurement Probability of occurrence vs Power level EVM lt 1 2 Magnitude error lt 1 0 Phase error lt 0 8 EVM lt 1 4 Magnitude error lt 1 2 Phase error lt 0 8 EVM lt 1 8 Magnitude error lt 1 2 Phase error lt 1 0 EVM lt 2 5 EVM lt 2 5 EVM Typical Symbol rate 100 kHz 1 MHz 4 MHz 10 MHz 100 kHz 1 MHz 4 MHz 10 MHz 100 kHz 1 MHz 4 MHz 10 MHz 100 kHz 1 MHz 4 MHz 10 MHz RSA3303A amp RSA3308A Service Manual 1 17 Specifications Table 1 11 Digital demodulation Option 21 only Cont Characteristics 4 DQPSK Center frequency 1 GHz Center frequency 2 GHz Center frequency 3 GHz Center frequency 5 GHz RSA3308A only 16QAM Center frequency 1 GHz Center frequency 2 GHz Center frequency 3 GHz Center frequency 5 GHz RSA3308A only Table 1 12 Analog demodula
110. IRED SPACER LED 2MM L X 4 5MM OD TPE PUSH BUTTON POWER SILVER GRAY ABS CA ASSY SP ELEC 6 AWG26 15CM L RIBBON LEMO 6P TO JST 6P PRE AMP WASHER LOCK 0 521 ID INT 0 025 THK SST BRACKET FRONT AL WCA230A 280A CIRCUIT BD ASSY A60 FRONT KB 389 B158 XX WIRED SCREW MACHINE M3X6MM L PNH STL ZN PL CROSS REC W FLAT 7MM OD amp LOCK WASHER PUSH BUTTON RUBBER SWITCH SET SILICON RUBBER SWITCH ROTARY ENCODR 5VDC 70MA INCREMENTAL W 9CM L CABLE ASSY FILTER LCD ACRYL WCA200 191 6MM X 149 5MM X 1 2MM T BEZEL FRONT WCA230A 280A PANEL FRONT KEYBOARD WCA230A 280A PANEL FRONT LOW WCA230A 280A SHELL KNOB SILVER GRAY 38MM OD X 11MM H ABS PC KNOB ASSY 6MM ID X 38MM OD X 11MM H SILVER GRAY ABS MARKER IDENT MKD RSA3303A POLYCARBONATE MARKER IDENT MKD RSA3308A POLYCARBONATE CA ASSY SP ELEC 16 26AWG 15CM RIBBON W HLDR CA ASSY SP ELEC 5 26AWG 27CM RIBBON W HLDR RSA3303A amp RSA3308A Service Manual Replaceable Parts 2 Front panel assembly 1 Figure 10 10 7 RSA3303A amp RSA3308A Service Manual Replaceable Parts Replaceable parts list Fig amp index number 10 3 1 2 10 8 Tektronix part number 211 0945 XX 348 1433 407 A738 XX 343 1286 XX 211 A004 XX 343 1644 XX 348 1644 119 125 119 126 174 984 211 0871 131 6608 XX 211 1028 XX 386 A857 XX 348 A116 X
111. M SQ 250V 10A 2 5 METER RTANG IEC320 RCPT SWISS NO CORD GRIP SAFETY CONTROLLED OPTION A5 SWITZERLAND 161 A005 00 1 CABLE ASSY PWR JAPANESE T MARK SAFETY CONTROLLED OPTION JAPANESE 161 0306 00 1 CABLE ASSY PWR 3 1 0MM SQ 250V 10A 2 5 METER RTANG IEC320 RCPT 3C CERTIFICATION CHINA SAFETY CONTROLLED OPTION A10 CHINA 119 B145 XX 1 POINTER ASSY OPTICAL MOUSE USB 119 B146 XX 1 KEYBOARD USB 103 0045 XX 1 ADPTR N ELEC FEMALE BNC TO MALE N 071 1409 XX 1 MANUAL TECH USER ENGLISH VERSION RSA3303A RSA3308A 071 1411 XX 1 MANUAL TECH PROGRAMMER ENGLISH VERSION RSA3303A RSA3308A OPTIONAL ACCESSORIES 071 1412 XX 1 MANUAL TECH SERVICE ENGLISH VERSION RSA3303A RSA3308A 063 3680 XX 1 SOFTWARE PKG 3 5FD AWG520 SETUP DISK FOR WCA200 SERVICE 020 2520 XX 1 COMPONENT KIT SERVICE MANUAL AND AWG520 SETUP DISK 063 3680 00 10 34 RSA3303A amp RSA3308A Service Manual
112. Manual 5 11 Adjustment Procedures Center Offset Calibration When you display a spectrum and no input signal is present a spurious emission at the center frequency may appear regardless of frequency settings The center offset calibration cancels those spurious emissions If the spurious emission is too obvious when you narrow the span run the calibration NOTE Option 03 only When you input I and Q signals from the rear panel connectors set the IQ input signal level to zero externally When the spurious emission appears at the center of the screen with no input signal run the center offset calibration Figure 5 6 Center offset 1 Press the CAL key on the front panel see Figure 5 5 2 Press Calibrate Center Offset side key The calibration runs It takes several seconds to complete the process When you want to perform the gain center offset and DC offset calibration together press the Calibrate side key NOTE Enabling Auto Calibration see Figure 5 5 allows the analyzer to run the center offset calibration automatically as analyzer settings change 5 12 RSA3303A amp RSA3308A Service Manual Adjustment Procedures DC Offset Calibration DC offset calibration cancels DC offset that appears at 0 Hz in the baseband When you change the amplitude setting and the DC offset 1s too obvious run the DC o
113. Modify the analyzer controls m Press the FREQUENCY CHANNEL key on the front panel m With the Center Freq side key set the frequency to the same value as the generator output using the numeric keypad c Measure the amplitude m Press the MARKER SETUP key m Press the Select Marker side key to select 1 m Press the PEAK key and then the MARKERS W marker down key once to place the first marker at the peak on the noise floor m Press the Select Marker side key to select 2 Press the PEAK key to place Marker 2 on the peak signal B Read the delta marker readout A 1 2 on the screen Check that the components other than the carrier meet the requirement as shown in Table 4 4 initially 73 dBc RSA3303A amp RSA3308A Service Manual 4 39 Performance Tests 4 40 d Repeat substeps a through c until all frequency settings listed in Table 4 4 are checked Table 4 4 Spurious measurement Band Spurious response Baseband 73 dBc RF RSA3303A RF1 RSA3308A 73 dBc RF2 RSA3308A only 70 dBc RF3 RSA3308A only 70 dBc 3 Disconnect the test equipment Disconnect the cable at the analyzer input RSA3303A amp RSA3308A Service Manual Performance Tests Displayed Average Noise Check that the displayed average noise level is within the specified range for the Level Test analyzer Equipment None Required Prerequisites Refer to page 4 10 RSA3303A RSA3308A
114. Mother board removal 6 42 Power supply 1 and 2 removal 6 44 Power supply modules removal 6 46 modules removal 1 6 49 modules removal 2 RSA3303A 6 51 modules removal 2 RSA3308A 6 53 Front panel assembly removal 6 56 Front panel modules removal 6 57 LCD display removal 6 60 Fan and side panel removal 6 62 Board guide bracket removal 6 63 Rear panel modules 6 65 Troubleshooting procedure 1 Power supply system 6 68 RSA3303A amp RSA3308A Service Manual Table of Contents Figure 6 33 Troubleshooting procedure 2 Display and CPU s sl Hi RUE US AHORA 6 69 Figure 6 34 Troubleshooting procedure 3 Signal path 6 70 Figure 6 35 Top view for cable interconnection 6 75 Figure 6 36 Bottom view for cable interconnection RSA3303A 6 76 Figure 6 37 Bottom view for cable interconnection RSA3308A 6 77 Figure 6 38 A70 DC power supply board 6 79 Figure 9 1 Block diagram 9 3 Figure 9 2 Interconnect diagram RSA3303A 9 5 Figure 9 3 Interconnect diagram RSA3308A
115. N amp LOCK WASHER BRACKET STOPPER GASKET SIDE R AL GASKET ELEC SHIELD GASKET CONDUCTIVE FOAMSTRIP W ADHESIVE TAPE 1M L FLOPPY DISK DRIVE 3 5INCH 3 MODE W INTERFACE CIRCUIT BD ASSY A62 FRONT CON 3893564XX WIRED RSA3300 SCREW MACHINE M3X8MM L PNH STL ZN C CROSS REC W FLAT amp LOCK WASHERS BRACKET SHIELD A62 AL GASKET SHIELD CONDUCTIVE URETHAN FOAM 3MM X 4 W CONDUCTIVE ADHESIVE GASKET SHIELD CONDUCTIVE URETHAN FOAM W ADHESIVE TAPE BACKSIDE CA ASSY SP ELEC 2 26AWG 15CM L RIBBON W HLDR FCN 723J002 1 amp PHR 2 CA ASSY SP ELEC 20 28AWG 20CM L TWIST PAIR WIRE MORE THAN 25 TWIST W HLDR BOTH DF13 20DS 1 25C ASSY SP ELEC 10 26AWG 10CM L W HOLDER HLDR 10 TO 10 CA ASSY SP ELEC 10 28AWG 7CM L FLAT W TAG 2 54MM CA ASSY SP ELEC 34 28AWG 13CM L FLAT W TAG 2 54MM CA ASSY SP ELEC 3 26AWG 15CM L W HLDR FCN 723J003 1 amp PHR 3 CA ASSY SP ELEC FLAT 40 COND 28AWG 30CM L 2X20 HEADER CONN BOTH KEY POSITION 20 CA ASSY SP ELEC 44 28AWG 8CM L 2MM PITCH NORMAL ASSY CA ASSY SP ELEC 26 1MM PITCH 8CM L FFC REVERSE RSA3303A amp RSA3308A Service Manual Replaceable Parts Figure 10 7 Disk modules 10 17 RSA3303A amp RSA3308A Service Manual Replaceable Parts Replaceable parts list Fig amp index number 10 8 1 2 10 18 Tektronix part number 211 0871 XX
116. N g AA 48 LS VN Q NN NON eN Bracket m DAT m D D EF Me pL as 7 aee qnl Loge JZ Ll ee 20 eja Band relay e e e eu Z EE 2 ZA yy Pn i YET Figure 6 8 Bottom modules 1 RSA3308A RSA3303A amp RSA3308A Service Manual 6 18 Removal and nstallation Procedures lt Front sub panel Inverter FF input connector Preamp power A60 Front key board connector Front panel keys f fi Front bezel bos a Rotary encoder Front panel A61 Front bracket Power switch 12 LCD filter T TTT lt wwww BELLU SN CEEE GEGE DORR WEEE YD SANANNNANA VDD NS General purpose knob Figure 6 9 Front panel modules RSA3303A amp RSA3308A Service Manual 6 19 Removal and Installation Procedures Board guide bracket Rear panel Blank plate SMB BNC PC board guide connector bracket
117. PL CROSS REC W FLAT amp LOCK WASHER CHASSIS MAIN WCA230A 280A SCREW MACHINE M4X8MM L PNH STL ZN C PL CROSS REC W FLAT amp LOCK WASHER RSA3303A amp RSA3308A Service Manual Replaceable Parts W40 W41 W42 W43 W44 W45 1 Figure 10 12 Chassis modules 10 27 RSA3303A amp RSA3308A Service Manual Replaceable Parts Replaceable parts list Fig amp index number 10 13 4 2 28 4 5 6 7 8 10 28 Tektronix part number 211 A004 XX 211 0871 XX 407 4990 XX 348 A143 XX 407 A681 XX 348 1644 407 A732 XX 213 A248 XX 119 B161 XX 348 A158 XX 348 A158 XX 348 A143 XX Serial No effective Serial No discont d Qty 10 5 CM 10 CM 5 CM Name amp description SCREW MACHINE M4X10MM L PNH STL ZN C CROSS REC W FLAT amp LOCK WASHER SCREW MACHINE M3X6MM L PNH STL MFZN C CROSS REC W FLAT amp LOCK WASHER BRACKET SHIELD SIDE AL GASKET SHIELD FINGER TYPE 15 2MM W X 5 6MM H X 7 2MM L BRACKET SIDE PANEL SHLD GASKET ELEC CONDUCTIVE URETHANE FOAM W ADHESIVE TAPE BRACKET STOPPER GASKET UPPER AL SCREW MACHINE M4X35 L PNH STL ZN C CROSS REC W FLAT MIGAKI amp LOCK WASHER FAN TUBEAXIAL 12VDC 2W 2000RPM 31DB W CONNECTOR SHLD GSKT ELEC CONDUCTIVE URETHANE FOAM 1X4 W ADHESIVE SHLD GSKT ELEC CONDUCTIVE URETHANE FOAM 1X4 W ADHESIVE
118. REF and execute the calibration f Disconnect the RF input of the power sensor from the reference output of the power meter 4 22 RSA3303A amp RSA3308A Service Manual Performance Tests Power meter Power reference output Figure 4 9 Hookup for calibrating the power sensor Baseband Test 2 Set the signal generator output a Hook up the instruments Connect the signal generator Item 1 output through a 50 Q N N coaxial cable to the power sensor input See Figure 4 10 Signal generator Power meter D Output Power sensor Figure 4 10 Hookup for setting the signal generator output b Set the signal generator controls Frequency 10 MHz Level 2252229 sean sees as 10 dBm Set the power meter control Qu az sassa asa 10 MHz d Adjust the output level of the signal generator so that the power meter reads 10 dBm 0 05 dBm e Disconnect the cable from the power sensor input RSA3303A amp RSA3308A Service Manual 4 23 Performance Tests 4 24 3 Prepare for the test a Hook up the instruments Connect the signal generator output through a 50 Q N N coaxial cable to the RSA3303A RSA3308A INPUT See Figure 4 11 RSA3303A RSA3308A Sig
119. RSA3303A 6 76 RSA3303A amp RSA3308A Service Manual Troubleshooting Rear Power switch Ine W80 filter CN CNS3 Fr J902 W CN51 83 J900 W91 Power supply 1 W92 W93 PPY TM UNES 82 901 CN81 J100 W95 W81 i CN53 H8 J912 Power supply 3 dd CN51 we J910 J130 Power supply 2 71 AC power PP y T W84 90 J911 J920 CN81 U we J 2 X relay W121 A A100 f Step attenuator 1 Interconnection m2 W115 W120 pe Programmable J302 J111 mie 4300 J120 123 Dc J110 J230 J130 J280 Y J YTF To RF3 D S Input tep attenuator 2 W119 W114 W105 ien 120 RF4 we W13 2
120. RSA3303A amp RSA3308A Service Manual Removal and nstallation Procedures A50 Mother Board 1 Assemble equipment and locate module to be removed a b You will need a 2 Phillips screwdriver Items 1 and 3 Locate the A50 Mother board in locator diagram Mother board and its daughter boards Figure 6 5 page 6 15 Remove the RF modules Refer to the RF Modules procedure on page 6 27 Remove the daughter boards Refer to the procedure A70 Board through A70 DC Power Board starting on page 6 36 2 Remove the A50 Mother board a f Orient the analyzer Set the analyzer so its top is down on the work surface and its front is facing you Unplug the cables at J902 J900 J901 J912 J910 J911 J100 and J920 on the bottom of the analyzer See Figure 6 36 on page 6 76 RSA3303A or Figure 6 37 on page 6 77 RSA3308A for cable interconnection Orient the analyzer Set the analyzer so its bottom 1s down on the work surface and its rear is facing you Remove 25 screws securing the A50 board to the main chassis Pull the board backward until you can unplug the cables at J700 J810 J60 and J710 on the A50 board See Figure 6 35 on page 6 75 for cable interconnection Lift up and remove the board 3 Reinstallation a b Reverse step 2 to reinstall the A50 board Reinstall the daughter boards Refer to A70 Board through A70 DC Power Board starting page 6 36 Reinstall the RF modules
121. RSA3308A for cable interconnection a Unplug the cables at J912 J910 and J911 on the 50 Mother board b Unplug the cable at J130 on the A71 AC power board c Remove the four screws securing the power supply 2 to the bracket Lift up and remove the power supply 2 Reinstallation Reverse steps 3 and 4 to reinstall the power supply 1 and 2 RSA3303A amp RSA3308A Service Manual 6 43 Removal and Installation Procedures lt O 2 co co LO O 2 4 lt co C oe lt co 5 2 O W81 to CN53 W85 to CN51 Z i CN61 and CN81 W82 to W94 to CN1 W93 to 8 Figure 6 21 Power supply 1 and 2 removal RSA3303A amp RSA3308A Service Manual 6 44 Removal and nstallation Procedures AT1 AC Power Board 1 Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items 1 and 3 b Locate the A71 AC power board in the locator diagram Bottom modules Power supply Figure 6 6 page 6 16 2 Orient the analyzer Set the analyzer so its top is down on the work surface and its front side is facing you 3 Remove the A71 AC power board See Figure 6 22 Also see Figure 6 36 RSA3303A or 6 37 RSA3308A for cable interconnection a Unplug the cables at J100 J110 J120 and J130 on the A71 board b Remove the four screws securing the A71 board to the main chassis Lift up the boar
122. RSA3308A Service Manual Installation Restart When the analyzer operates abnormally use the following procedure to turn off the analyzer and turn it on again NOTE When the analyzer operates abnormally it will not be shut down by turning off the front panel power switch alone z Make sure that the front panel power switch is in the off position 2 Turn off the principal power switch on the rear panel 3 Wait at least 10 seconds and then turn on the principal power switch again 4 Turn on the front panel power switch When Scan Disk Appears If the analyzer was not shut down properly Windows Scan Disk may run when you turn on the analyzer When the Scan Disk screen appears wait until the Scan Disk is completed If an error is detected refer to the Windows manual for treatment For more information on accessing Windows on the analyzer refer to Using Windows XP on page 2 46 When the Display Itis a characteristic of the LCD Liquid Crystal Display panel to sometimes Brightness Is Not Even have uneven brightness dead pixels dots that never turn on or stuck pixels dots that always stay on This is neither a malfunction nor a defect and not a cause for repair or exchange RSA3303A amp RSA3308A Service Manual 2 9 Installation Repackaging Instructions Installed Options If you ship the analyzer pack it in the original shipping carton and packing material If the original packing material is not available
123. Refer to RF Modules on page 6 27 RSA3303A amp RSA3308A Service Manual 6 41 Removal and Installation Procedures Figure 6 20 Mother board removal RSA3303A amp RSA3308A Service Manual 6 42 Removal and nstallation Procedures Procedures for Power Supply Modules on the Instrument Bottom Read the Access Procedure on page 6 21 before proceedin The procedures presented in the following order Power Supply 1and2 1 Power supply I and 2 71 AC power board Power supply 3 standby power Line filter Principal power switch Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items 1 and 3 b Locate the power supply 1 and 2 in the locator diagram Bottom modules Power supply Figure 6 6 page 6 16 Orient the analyzer Set the analyzer so its top is down on the work surface and its front is facing you Remove the power supply 1 See Figure 6 22 Also see Figure 6 36 RSA3303A 6 37 RSA3308A for cable interconnection a Unplug the cables at J902 J900 and J901 on the 50 Mother board b Unplug the cable at J110 on the 71 AC power board Remove the four screws securing the power supply 1 to the bracket Lift up and remove the power supply 1 Remove the power supply 2 See Figure 6 22 Also see Figure 6 36 RSA3303A or 6 37
124. SA3303A amp RSA3308A Service Manual 2 29 Operating Instructions Comparison Display You can display two different types of traces concurrently on the screen In this procedure you will display the currently acquired waveform and an averaged waveform for comparison 1 Press the TRACE AVG key on the front panel 2 Make sure that 1 Trace 1 is selected in the Select Trace menu item 3 Press the Trace Type side key and select Normal to define Trace 1 as the currently acquired waveform 4 Press the Select Trace side key to select 2 Trace 2 5 Press the Trace 1 Type side key and select Average to define Trace 2 as the averaged waveform 6 Press the RUN STOP key on the front panel to acquire waveform The currently acquired waveform Trace 1 in yellow is displayed with the averaged waveform Trace 2 in green See the display in Figure 2 24 Tektronix RSA 3308A 03 08 08 14 32 01 TRACE AVG Frequency 100 MHz RBW 200 Hz Cancel Back Span 20 kHz Trace 1 Normal Select Trace Input Att 20 dB Trace 2 Average 20 20 lt Select Trace mi 2 Selects the trace to be operated Trace 1 Yellow currently acquired waveform ae m Trace 2 Green averaged waveform On Freeze Off Trace 2 Type Average Number Of Averages 20 10 Reset Average Display Detection Max Load Trace i 400 VAA N UW VY eno Center 100 MHz Span 20 kHz Save Trace Spectrum Analyzer M
125. Service Manual Tektronix RSA3303A amp RSA3308A 3 GHz amp 8 GHz Real Time Spectrum Analyzers 071 1412 01 This document applies to firmware version 2 4 and above Warning The servicing instructions are for use by qualified personnel only To avoid personal injury do not perform any servicing unless you are qualified to do so Refer to all safety summaries prior to performing service www tektronix com Copyright Tektronix Inc All rights reserved Licensed software products are owned by Tektronix or its suppliers and are protected by United States copyright laws and international treaty provisions Use duplication or disclosure by the Government is subject to restrictions as set forth in subparagraph 1 1 of the Rights in Technical Data and Computer Software clause at DFARS 252 227 7013 or subparagraphs c 1 and 2 of the Commercial Computer Software Restricted Rights clause at FAR 52 227 19 as applicable Tektronix products are covered by U S and foreign patents issued and pending Information in this publication supercedes that in all previously published material Specifications and price change privileges reserved TEKTRONIX and TEK are registered trademarks of Tektronix Inc Contacting Tektronix Tektronix Inc 14200 SW Karl Braun Drive or P O Box 500 Beaverton OR 97077 USA For product information sales service and technical support B In North America call 1 800 833 9200 m Worldwide
126. Signal frequency 10 MHz Signal level 5 dBm 73 dBc Signal frequency 2 GHz Signal level 5 dBm 70 dBc Signal frequency 5 GHz Signal level 5 dBm 70 dBc Signal frequency 7 GHz Signal level 5 dBm RSA3303A amp RSA3308A Service Manual Specifications Table 1 8 Acquisition Characteristics Acquisition mode Acquisition memory size Block size Number of data samples in one frame A D converter Vector span Real time capture bandwidth Table 1 9 Sampling rate Characteristics Description Single and Continuous 64 Mbytes Standard 256 Mbytes Option 02 1 to 16 000 frames Standard 1 to 64 000 frames Option 02 1024 Vector mode 14 bits 51 2 Msps 20 MHz Baseband 15 MHz RF RF1 to 3 20 MHz Option 03 IQ input 20 MHz Baseband 15 MHz RF 1 to 3 10 MHz Option 03 IQ input Description Sampling rate Real Time S A Demod and Time modes 20 MHz span Baseband 15 MHz span RF RF1 to 3 10 MHz span 5 MHz span 2 MHz span 1 MHz span 500 kHz span 200 kHz span 100 kHz span 50 kHz span 20 kHz span 10 kHz span 5 kHz span 2 kHz span 1 kHz span 500 Hz span 200 Hz span 100 Hz span 25 6 Msps 25 6 Msps 12 8 Msps 6 4 Msps 3 2 Msps 1 6 Msps 800 ksps 320 ksps 160 ksps 80 ksps 32 ksps 16 ksps 8 ksps 3 2 ksps 1 6 ksps 800 sps 320 sps 160 sps RSA3303A amp RSA3308A Service Manual Specifications Table 1 10 Frame time Characteris
127. Table of Contents Maintenance Related Maintenance Procedures 1 lusor d oo ees eee one p g 6 2 Inspection and CIeanine es uu oos due SUE orci QE Hor dd 6 4 Removal and Installation Procedures 6 7 lucra 6 7 Access Procedure 8 6 21 Procedures for External Modules 6 22 Procedures for RF Modules 6 27 Procedures for CPU Board and Disk Modules 6 31 Procedures for Mother Board and its Daughter Boards 6 36 Procedures for Power Supply Modules on the Instrument Bottom 6 43 Procedures for RF1 Modules on the Instrument Bottom 6 48 Procedures for Front Panel Modules 6 55 Procedures for Chassis Modules 6 61 Troubleshooting 6 67 Troubleshooting Procedure suni vae pm ex XL P3 SEX E ees 6 67 Symptoms and Faulty Modules xcd er eR REIR RE EX Sue CR 6 80 Notes for Changing Modules or Parts 6 82 Options Options and Accessories 7 1 eee ene ha 7 1 Stan
128. VER FRONT WCA230A 280A PAD FOOT GRAY WCA230A 280A SCREW MACHINE M4X14MM L PNH STL ZN PL CROSS REC W FLAT amp LOCK WASHER CUSHION FRONT GRAL WCA230A 280A SHAFT STAND SST CABINET ASSY WCA230A 280A CABINET ASSY WCA230A 280A WITH HANDLE AND FOOT SCREW MACHINE M4X10MM FOOT REAR GRAY WCA230A 280A SCREW MACHINE M4X20 L PNH STL ZN C CROSS REC W FLAT MIGAKI amp LOCK WASHER HANDLE CARRYING 11 54L PLASTIC CAP RETAINER PLASTIC FOOT CABINET FRONT CABLE ASSY PWR STANDARD ACCESSORY RSA3303A amp RSA3308A Service Manual Replaceable Parts N A 00000 D 00000 00000 00000 00000 00000 7 eoopp 0000 Figure 10 1 External modules 10 5 RSA3303A amp RSA3308A Service Manual Replaceable Parts Replaceable parts list Fig amp index number 10 2 1 10 6 Tektronix part number 211 0871 XX 671 B157 XX 361 179 366 A046 XX 174 B995 XX 210 1039 XX 407 A739 XX 671 B156 XX 211 0871 XX 366 A059 XX 260 2497 XX 378 A050 XX 200 A523 XX 333 A464 XX 333 A466 XX 366 A057 XX 366 A056 XX 335 1072 335 1073 174 982 174 981 Serial effective Serial No discont d Qty Name amp description SCREW MACHINE M3X6MM L PNH STL ZN PL CROSS REC W FLAT 7MM OD amp LOCK WASHER CIRCUIT BD ASSY A61 POWER SW 389 B159 XX W
129. X 211 0751 XX Serial No effective Serial No discont d Qty 130 63 CM Name amp description SCREW MACHINE M4X8MM L STL ZN C CROSS REC SHLD GASKET ELEC MESH TYPE 2 5MM OD SI SPONGE CORE BRACKET FRONT SUB PANEL WCA230A 280A CLAMP CABLE 6 8MM ID NYLON SCREW MACHINE M4X10MM L PNH STL ZN C CROSS REC W FLAT amp LOCK WASHER CLAMP CABLE CLIP LOCKING WIRE NYLON SHIELD GASKET ELEC CONDUCTIVE URETHANE FOAM W ADHESIVE TAPE DISPLY MONITOR 8 4INCH LCD TFT 800X600 SVGA 3 3V W BACK LIGHT INVERTER UNIT COLD CATHODE TUBE INVERTER FOR LTM08C351 12VDC 0 9A CA ASSY SP ELEC 8 26AWG 13CM L W HLDR SCREW MACHINE M3X6MM L PNH STL ZN PL CROSS REC W FLAT 7MM OD amp LOCK WASHER CONN RF N TO SMA 500HM PANEL MOUNT SCREW MACHINE M4X8MM L PNH STL ZN C PL CROSS REC W FLAT amp LOCK WASHER PLATE N CONNECTOR SHLD GSKT ELEC CONDUCTIVE URETHANE FOAM 1MM X 3MM W ADHESIVE SCREW MACHINE M3X8MM L PNH STL ZN C CROSS REC W FLAT amp LOCK WASHERS RSA3303A amp RSA3308A Service Manual Replaceable Parts Figure 10 3 Front panel assembly 2 10 9 RSA3303A amp RSA3308A Service Manual Replaceable Parts Replaceable parts list Fig amp index number 10 4 zi E 28 E 5 10 10 Tektronix part number 211 1028 XX 119 B173 XX 119 B172 XX 119 B170 XX 119 B171 XX 119 B164 XX 119 B165 XX Serial No effective Serial
130. X18 L PNH STL NI PLCROSS REC W FLAT KOGATA amp LOCK WASHER RELAY COAX COIL 12V DC 18GHZ IL lt 0 5DB VSWR 1 5 SMA CONN CABLE ASSY RF SEMI RIGID W122 SW TO FINE CABLE ASSY RF SEMI RIGID W123 SW TO YTF PLATE BASE RF 1 AL T 1 6 CABLE RF SEMI RIGID W101 N CON TO SW CABLE ASSY RF SEMI RIGID W120 SW TO ATT SCREW MACHINE M2 5X6MM L PNH STL ZN C CROSS REC W KOGATA PLAIN amp SPLIT WSHR ATTENUATOR FXD 3DB DC 8GHZ 50 OHM 1W SMA CONN CIRCUIT BD ASSY A150 I F 389 B192 XX WIRED YTF UNIT YIG FILTER 3 5 8GHZ 4STAGE 30MHZ BRACKET YTF AL T 1 6 SCREW MACHINE M2 5X8MM L PNH STL NI PLCROSS REC W KOGATA PLAIN amp SPLIT WSHR SCREW MACHINE M3X6MM L PNH STL MFZN C CROSS REC W FLAT amp LOCK WASHER SCREW MACHINE M2 5X6MM L PNH STL ZN C CROSS REC W KOGATA PLAIN amp SPLIT WSHR BRACKET ATT AL T 1 6 ATTENUATOR MODULE STEP ATT 0 70DB 10DB STEP DC 8GHZ 50 OHM COIL 24V 0 72A SCREW MACHINE M2 5X8MM L PNH STL NI PLCROSS REC W KOGATA PLAIN amp SPLIT WSHR MODULE RF DOWN CONVERTER FINE ATT WCA230A amp WCA280A GROMMET PLASTIC NYLON BLACK RING 15MM ID CA ASSY RF 500HM SEMI RIGID W106 FINE ATT TO SW CA ASSY RF 500HM SEMI RIGID W105 YTF TO A310 RSA3303A amp RSA3308A Service Manual Replaceable Parts See Figure 10 11 CHG 2e o LIS Nes M 12 M IMJ etel 22 Zeer et e fd e e eu Z _
131. amp of AA y S d 7 W E 5 Ll N Wi Figure 10 10 Bottom modules RF1 RSA3308A 10 23 RSA3303A amp RSA3308A Service Manual Replaceable Parts Replaceable parts list Fig amp index Tektronix Serial No Serial No number part number effective discontd Qty amp description 10 11 1 174 B978 XX 1 CA ASSY SP ELEC 16 26AWG 7CM RIBBON W HLDR 2 211 0871 XX 6 SCREW MACHINE M3X6MM L PNH STL MFZN C CROSS REC W FLAT amp LOCK WASHER 3 671 B254 XX 1 CIRCUIT BD ASSY A100 INTER CONNECTION 389 B189 XX WIRED RSA3303A 671 B187 XX 1 CIRCUIT BD ASSY A100 INTER CONNECTION 389 B189 XX WIRED RSA3308A 4 174 C009 XX 1 CA ASSY SP ELEC 5 26AWG 35CM L RIBBON W HLDR 5 174 C011 XX 1 CA ASSY SP ELEC 4 26AWG 25CM L RIBBON W HLDR 6 174 C010 XX 1 CA ASSY SP ELEC 6 26AWG 25CM L RIBBON W HLDR RSA3303A 7 174 C008 XX 2 ASSY SP ELEC 4 26AWG 25CM L RIBBON W HLDR 8 174 C013 XX 1 CABLE ASSY RF 500HM COAX 25CM L 1 5D QEW SMB L TO SMA L 10 24 RSA3303A amp RSA3308A Service Manual Replaceable Parts See Figure 10 10 for details 77 7 UM 21 TH A e 7 E j NO Z x N k N L jabs E 1 VAN emer E i S i E a 2 3 lt y y 4 E x cy N Ad Z Jal N 5
132. andwidth 4kHz Measurement Off Spectrum Analyzer Channel Power Figure 2 28 Channel power measurement RSA3303A amp RSA3308A Service Manual 2 35 Operating Instructions Changing a Measurement Change a measurement parameter Parameter Press the MEAS SETUP key on the front panel 2 The Channel Bandwidth menu item is selected Using the general purpose knob set the measurement range to 40 kHz for example See the display in Figure 2 29 Tektronix RSA 3308A 03 08 08 14 40 08 MEAS SETUP Cancel Back Frequency 100 MHz RBW 200 Hz Span 20 kHz Trace 1 Normal Channel i Input Att 20 dB Trace 2 Off Bandwidth Hz 21 lt Channel Bandwidth Sets the measurement bandwidth 0 Measurement dom Channel Bandwidth Shape 40 kHz iu Rolloff Ratio 0 5 10 100 dBm Center 100 MHz Span 20 kHz Channel Power 9 85 dBm Density 48 88 dBm Hz Channel Bandwidth 8 kHz Spectrum Analyzer Channel Power Channel Bandwidth kHz 8 Figure 2 29 Channel power measurement Channel Bandwidth 40 kHz 2 36 RSA3303A amp RSA3308A Service Manual Operating Instructions Measuring Carrier Carrier frequency can be measured accurately using the counter function Frequenc q Press MEASURE key on the front panel 2 Press the Carrier Frequency side key The measurement result is displayed at the bottom of the screen see Figure 2 30 Tek
133. anges the span by effectively reducing the sampling rate A 503 tap FIR filter and four stage comb filter allows extremely accurate filtering with minimal spurious emissions The data streams from the digital down converter are then divided into frames and saved in data memory Option 02 provides a real time digital trigger function that monitors the frequency spectrum for the occurrence of specific events A trigger mask is used to set conditions for trigger The FFT processor performs high speed calculations to create extended trigger signals The FFT processor performs 1024 point complex FFT at high speed to create extended trigger signals The FFT processor consists of an input buffer FFT calculation DSP output buffer and timing control circuit Performing a 1024 point complex FFT at 12 500 times per second allows the trigger to operate in real time in spans up to 15 MHz Because the trigger comparator is continuously operating at the maximum rate no events will be missed The pre trigger and post trigger positions can be set as needed events before and after the trigger event can be measured RSA3303A amp RSA3308A Service Manual 1 7 Product Overview 1 8 Data Memory Windows Board PC A high speed 64 MB standard SDRAM stores spectrum data It is expanded to 256 MB with Option 02 For each data point I and Q data use 2 bytes This memory can store 16 000 frames for 1 waveform 1024 points of analysis and 64 000 frames
134. ard disk Figure 9 3 Interconnect diagram RSA3308A encoder filter W69 switch DC DC Voltage J102 we converter regulator RSA3303A amp RSA3308A Service Manual 9 7 RSA3303A amp RSA3308A Service Manual Mechanical Parts List i Z Al X Replaceable Parts This section contains a list of the replaceable modules for the RSA3303A and RSA3308A Real Time Spectrum Analyzers Use this list to identify and order replacement parts Parts Ordering Information Replacement parts are available through your local Tektronix field office or representative Changes to Tektronix products are sometimes made to accommodate improved components as they become available and to give you the benefit of the latest improvements Therefore when ordering parts it is important to include the following information in your order m Part number Instrument type or model number m Instrument serial number m Instrument modification number if applicable If you order a part that has been replaced with a different or improved part your local Tektronix field office or representative will contact you concerning any change in part number RSA3303A amp RSA3308A Service Manual 10 1 Replaceable Parts 10 2 Part Number Revision Level Module Servicing Tektronix part numbers contain two digits that show the revision level of the part For most parts in this manual you will find the letters in place of the revision level num
135. ate Lift up the bracket with the attenuator b Using a 6 inch wrench disconnect the SMA cables W120 and W121 on the attenuator c Remove the two screws securing the bracket to the attenuator Lift up the bracket away 8 Remove the band relay a Using 1 6 inch wrench disconnect the SMA cables W121 W122 and W123 on the band relay b Unplug the cable W114A on the band relay c Remove the two screws securing the band relay to the base plate Lift up the band relay d Unsolder the 150 interface board at four points to remove it from the band relay 9 Reinstallation Reverse steps 3 through 8 to reinstall the RF1 modules 6 54 RSA3303A amp RSA32308A Service Manual Removal and Installation Procedures Procedures for Front Panel Modules Read the Access Procedure on page 6 21 before proceedin The procedures presented in the following order Front Panel Assembly 1 Front panel assembly Rotary encoder Front Bezel Menu Buttons and Front Panel A60 Front key board A61 Power switch board Preamp power connector RF input connector LCD display Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items and 3 b Locate the front panel assembly in the locator diagram Front panel modules Figure 6 9 page 6 19 c Remove the front cushions at both sides Refer to the Front Cushion procedure on page 6 23 Orient the analyzer Set
136. ated by dB the pink underline is FFT processed d PM Demod and displayed in the subview 100 dBm 0 IQ versus Time Timing dBm Start 64 ms Scale 6X Nms Center 100 MHz Span 20 kHz The data in the range indicated by the green underline is analyzed and displayed in the main view vn ANTT CDD Start 64 ms Scale 6 4 ms Measurement Off Analog Demod AM Demod Main view 47 Figure 2 32 signal measurement RSA3303A amp RSA3308A Service Manual 2 39 Operating Instructions Setting Analysis Range Set an analysis range which will be displayed with a green underline in the overview 1 Press the TIMING key on the front panel MEASUREMENT RUN CHANNEL STOP RBW AMPLITUDE TIMING TIMING Sets analysis range AVG MEAS MEASURE Two vertical ereen lines appear Indicating the analysis range shown In Figure 2 33 2 Press the Acquisition History side key to specify the number of the block to be analyzed Leave it at 0 the latest block its default value 3 Press the Analysis Length side key and specify the time length of the analysis range For example enter 32 ms using the numeric keypad 4 Press the Analysis Offset side key and specify the starting point of the range For example enter 24 ms using the numeric keypad 2 40 RSA3303A amp RSA3308A Service Manual Operating Instr
137. ber Part Number Revision Level Revision Level may show as XX a A 670 7918 03 670 7918 XX When you order parts Tektronix will provide you with the most current part for your product type serial number and modification if applicable At the time of your order Tektronix will determine the part number revision level needed for your product based on the information you provide Modules can be serviced by selecting one of the following three options Contact your local Tektronix service center or representative for repair assistance Module Exchange In some cases you may exchange your module for a reman ufactured module These modules cost significantly less than new modules and meet the same factory specifications For more information about the module exchange program call 1 800 833 9200 Outside North America contact a Tektronix sales office or distributor see the Tektronix web site for a list of offices www tektronix com Module Repair and Return You may ship your module to us for repair after which we will return it to you New Modules You may purchase replacement modules in the same way as other replacement parts RSA3303A amp RSA3308A Service Manual Replaceable Parts Using the Replaceable Parts List This section contains a list of the mechanical and or electrical components that are replaceable for the analyzer Use this list to identify and order replacement parts The following table describes each column i
138. cated on the rear panel are connected with this board The trigger detect signal output from the A20 or the A30 board is output to an external device after being synchronized with the memory s address controller on this board An external trigger signal input is used in addition as the timing reference signal for the address controller This memory board also contains a microprocessor that controls various software settings and various types of hardware as well as peripheral devices such as ROM RAM The power supply circuit consists of two units of AC DC Converter Power Supply 1 and 2 energized from AC power line and A70 DC power board which regulates the output voltages of AC DC converter units and distributes the regulated outputs to each of the boards and fans Note that Power Supply 1 and 2 units have different output voltage specifica tions The Power Supply 1 output voltages 5V 15V 15V 24V the Power Supply 2 output voltages are 5 V 12V 12V 3 3V The A70 DC Power board is equipped with multiple DC DC converters and based upon the output voltages supplied by the Power Supply 1 and 2 units power voltages other than above are generated on this board On the 70 DC Power board LED indicators and test points are provided to facilitate checking that all the power supply voltages are output normally RSA3303A amp RSA3308A Service Manual 3 5 Theory of Operation Standby Power and On Standby Switch 50 M
139. ce Manual 2 33 Operating Instructions Spectrum Analysis There are several measurement items in the spectrum analysis such as ACPR Adjacent Channel Leak Power Ratio C N Carrier vs Noise Power Ratio and OBW Occupied Band Width These items enable you to perform measurements using simple key operations Here measure channel power and carrier frequency as examples Measuring Channel Power 1 Press the MEASURE key on the front panel MEASUREMENT FREQUENCY CHANNEL RUN STOP bh d SPAN TRIG RBW FFT ip AMPLITUDE TRACE TIMING AVG MEASURE key MEASURE MEAS SETUP Selects a measurement item Measurement items are displayed in the menu on the right side of the screen 2 34 RSA3303A amp RSA3308A Service Manual Operating Instructions 2 Press the Channel Power side key A band power marker indicating measurement range 15 displayed on the spectrum waveform The measurement result 1s displayed below the waveform see Figure 2 28 Tektronix RSA 3308A 03 08 08 14 38 34 MEASURE Frequency 100 MHz RBW 200Hz Cancel Back Span 20 kHz Trace 1 Normal Input Att 20 dB Trace 2 Off Channel Power lt Select Channel Power here dB m ACPR Band power marker C N OBW 10 dB Carrier Frequency EBW 100 dBm Center 100 MHz Span 20 kHz Spurious Measurement Channel Power 9 81 dBm results Density 45 83 dBm Hz Channel B
140. cement If the analyzer does not meet performance criteria repair 1 necessary Strategy for Servicing Throughout this manual the term module refers to any field replaceable component assembly or part of the analyzer This manual contains all the information needed for periodic maintenance of the analyzer Examples of such information are procedures for checking perfor mance Further it contains all information for corrective maintenance down to the module level To isolate a failure to a module use the fault isolation procedures found in Troubleshooting part of section 6 Maintenance To remove and replace any failed module follow the instructions in Removal and Installation Proce dures also part of section 6 After isolating a faulty module replace it with a fully tested module obtained from the factory Section 10 Mechanical Parts List contains part number and ordering information for all replaceable modules RSA3303A amp RSA3308A Service Manual xvii Introduction xviii RSA3303A amp RSA3308A Service Manual Specifications Product Overview The RSA3303A and RSA3308A are portable real time spectrum analyzers with RF measurement capability up to 3 GHz RSA3303A and 8 GHz RSA3308A The real time spectrum analyzer has a vastly different architecture from traditional tools and is uniquely capable of capturing continuous intermittent or random signals with equal ease The waveform and measurement re
141. ces that could result in damage to this product or other property RSA3303A amp RSA3308A Service Manual xi General Safety Summary xii Terms on the Product These terms may appear on the product DANGER indicates an injury hazard immediately accessible as you read the marking WARNING indicates an injury hazard not immediately accessible as you read the marking CAUTION indicates a hazard to property including the product Symbols on the Product The following symbols may appear on the product A WARNING Protective Ground CAUTION High Voltage Earth Terminal Refer to Manual RSA3303A amp RSA3308A Service Manual l Service Safety Summary Only qualified personnel should perform service procedures Read this Service Safety Summary and the General Safety Summary before performing any service procedures Do Not Service Alone Do not perform internal service or adjustments of this product unless another person capable of rendering first aid and resuscitation is present Disconnect Power To avoid electric shock switch off the instrument power and then disconnect the power cord from the mains power Use Care When Servicing With Power On Dangerous voltages or currents may exist in this product Disconnect power remove battery if applicable and disconnect test leads before removing protective panels soldering or replacing components To avoid electric shock do not touch exposed connections RSA3
142. ctor Characteristics Preamp power connector Connector type Pin assignment 1 22 Description USB IEEE 488 1 10 100 BASE T IEEE 802 3 USB USB VGA D SUB 15 pins Description 100 to 240 VAC 90 to 250 VAC 47 to 63 Hz Densei Lambda supplies 5 A Time delayed 250 V not operator replaceable Cosel supply 2 A Time delayed 250 V not operator replaceable 350 VA 5 Arms at 50 Hz 90 V line with 5 clipping Maximum 52 A peak 25 C for lt 5 line cycles after the product has been turned off for at least 30 s Description LEMO 6 poles Pin 1 NC Pin 2 101 Pin 3 2 Pin 4 12 V Pin 5 GND Pin 6 12 V RSA3303A amp RSA3308A Service Manual Specifications Physical Characteristics Table 1 21 Physical characteristics Characteristics Description Dimensions Width 425 mm 16 7 in without belts Height 215 mm 8 5 in without feet Depth 425 mm 16 7 in without cover and feet Net weight 19 kg Environmental Characteristics Table 1 22 Environmental characteristics Characteristics Description Temperature Operating 10 to 40 C Nonoperating 20 to 60 C Relative humidity Operating and nonoperating 20 to 80 no condensation maximum wet bulb temperature 29 C Altitude Operating Up to 3000 m 10000 ft Nonoperating Up to 12000 m 40000 ft Vibration Operating 2 65 m s rms 0 27 G rms 5 to 500 Hz Nonoperating 22 3 m s rms 2 28 G rms 5 to 500 Hz Shock Nonoperating 196 m s
143. d RF input Figure 6 37 Bottom view for cable interconnection RSA3308A RSA3303A amp RSA3308A Service Manual 6 77 Troubleshootine Table 6 6 Normal supply voltages Board Power supply 1 Power supply 2 Power supply 3 6 78 Connector Pinno Normal C Low limit High limit ATSV 525 RSA3303A amp RSA3308A Service Manual Troubleshooting Test points from left to right Upper TP216 TP222 TP208 TP204 TP202 TP220 A70 DC power board Lower 214 TP210 TP212 TP218 TP200 TP206 J302 4300 ds 0000000000000 Power indicator LEDs Figure 6 38 70 DC power supply board Table 6 7 Test point voltages on A70 Test point Normal voltage TP216 3 3 V TP222 6 6 V TP208 6 6 V TP204 9 V TP202 15 V TP220 6 6 V TP214 5 V TP210 6 6 V TP212 5 V TP218 15 V TP200 20 V TP206 6 6 V Low limit High limit 3 14 V 3 46 V 6 93 V 6 27 V 6 27 V 6 93 V 8 55 V 9 45 V 14 25 V 15 75 V 6 93 V 6 27 V 4 75 V 5 25 V 6 27 V 6 93 V 4 75 V 5 25 V 15 75 V 14 25 V 19 V 21 V 6 27 V 6 93 V RSA3303A amp RSA3308A Service Manual 6 79 Troubleshooting Symptoms and Faulty Modules Fault symptoms can help you identify faulty boards or modules Fault symptoms and suspected boards or modules are listed in Table 6 8 below
144. d Equipment at this level is typically in a fixed industrial location CAT II Local level mains wall sockets Equipment at this level includes appliances portable tools and similar products Equipment is usually cord connected CATI Secondary signal level or battery operated circuits of electronic equipment A measure of the contaminates that could occur in the environment around and within a product Typically the internal environment inside a product is considered to be the same as the external Products should be used only in the environment for which they are rated Pollution Degree 1 Pollution Degree 2 Pollution Degree 3 Pollution Degree 4 Test and measuring No pollution or only dry nonconductive pollution occurs Products in this category are generally encapsulated hermetically sealed or located in clean rooms Normally only dry nonconductive pollution occurs Occasionally a temporary conductivity that is caused by condensation must be expected This location is a typical office home environment Temporary condensation occurs only when the product is out of service Conductive pollution or dry nonconductive pollution that becomes conductive due to condensation These are sheltered locations where neither temperature nor humidity is controlled The area is protected from direct sunshine rain or direct wind Pollution that generates persistent conductivity through conductive dust rain or snow
145. d a 1 Phillips screwdriver Items 1 and 2 and a 6 inch wrench Item 11 Locate the modules in the locator diagram Bottom modules Figure 6 7 page 6 17 2 Orient the analyzer Set the analyzer so its top is down on the work surface and its front is facing you See Figure 6 24 for the following steps 3 through 5 Also see Figure 6 36 for cable interconnection 3 Remove the step attenuator 2 a Using inch wrench disconnect the SMA cable W108 on the step attenuator 1 and 2 Unplug the cable W117 on the step attenuator 2 Remove the four screws securing the attenuator to the main chassis Using inch wrench disconnect the SMA cable W109 on the attenuator RSA3303A amp RSA3308A Service Manual Removal and nstallation Procedures From J120 on A100 I pe ij me From J302 w101 100 E r se RS I 1 Figure 6 24 RF1 modules removal 2 RSA3303A RSA3303A amp RSA3308A Service Manual 6 51 Removal and Installation Procedures 6 52 Input Relay Programmable BPF Step Atenuator 1 and Band Relay for RSA3308A Remove the step attenuator 1 a Using a 6 inch wrench disconnect the SMA cable W108 on the step attenuator and 2 if not yet b Unplug the cable W116 on the step attenuator
146. d away 4 Reinstallation Reverse step 3 to reinstall the A71 board P Power Supply 3 Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items 1 and 3 b Locate the power supply 3 standby power in the locator diagram Bottom modules Power supply Figure 6 6 page 6 16 2 Orient the analyzer Set the analyzer so its top is down on the work surface and its front side is facing you 3 Remove the power supply 3 See Figure 6 22 Also see Figure 6 36 RSA3303A or 6 37 RSA3308A for cable interconnection a Unplug the cables at CN1 and CN2 on the power supply 3 board b Remove the four screws securing the board to the main chassis Lift up the board away 4 Reinstallation Reverse step 3 to reinstall the power supply 3 RSA3303A amp RSA3308A Service Manual 6 45 Removal and Installation Procedures J100 110 W93 to J110 v J130 To CN1 on the power supply 3 To J120 on 71 Figure 6 22 Power supply modules removal 6 46 RSA3303A amp RSA3308A Service Manual Removal and nstallation Procedures Line Filter 1 Assemble equipment and locate module to be removed a Have screwdriver with a size Phillips 1 and 2 tip handy Items 1 2 and 3 b Locate the line filter in the locator diagram Bottom modules Power supply Figure 6 6 page
147. d remove the LCD display 5 Reinstallation Reverse steps and 4 to reinstall the LCD display and interconnect cables W56 LS s i To J710 on the Mother board r1 e X To J700 on the Mother board m Ww Figure 6 28 LCD display removal 6 60 RSA3303A amp RSA3308A Service Manual Removal and nstallation Procedures Procedures for Chassis Modules Read the Access Procedure on page 6 21 before proceedin The procedures presented in the following order Fan 1 Side Panel Assembly 1 Fan Side panel assembly Board guide bracket Rear panel modules Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items 1 and 3 b Locate the fan in the Chassis modules locator diagram Figure 6 10 page 6 20 Remove the cabinet Refer to the Cabinet procedure on page 6 22 Orient the analyzer Set the analyzer so its bottom is down on the work surface and its front is facing you Remove the fan See Figure 6 29 a Unplug the fan s power cable at J300 and 7302 on the A70 DC power board Refer to the 70 DC Power Board procedure on page 6 39 b Remove the four screws securing the fan to the main chassis Pull the fan away Reinstallation Reverse step 3 to reinstall the fan Assemble equipment and locate module to be removed a You will ne
148. damaging internal modules and their components due to electrostatic discharge ESD 1 2 Minimize handling of static sensitive modules Transport and store static sensitive modules in their static protected containers or on a metal rail Label any package that contains static sensitive modules Discharge the static voltage from your body by wearing a grounded antistatic wrist strap while handling these modules Do service of static sensitive modules only at a static free work station Nothing capable of generating or holding a static charge should be allowed on the work station surface Handle circuit boards by the edges when possible Do not slide the modules over any surface Avoid handling modules in areas that have a floor or work surface covering capable of generating a static charge RSA3303A amp RSA3308A Service Manual Maintenance Susceptibility to ESD Table 6 1 lists the relative susceptibility of various classes of semiconductors Static voltages of 1 kV to 30 kV are common in unprotected environments Table 6 1 Relative susceptibility to static discharge damage Relative susceptibility Semiconductor classes levels MOS or CMOS microcircuits or discrete circuits or linear 1 microcircuits with MOS inputs most sensitive ECL Schottky signal diodes Schottky TTL High frequency bipolar transistors JFET Linear microcircuits Low power Schottky TTL OINI OI G5 N TTL least se
149. dapter Item 12 One floppy disk Item 15 Prerequisites When using the power meter other than Agilent 437B select HP437B for the GPIB command set For selecting the programming language refer to the operation manual of the instrument RSA3303A amp RSA3308A Service Manual Adjustment Procedures Signal generator Output N N coaxial cable Figure 5 2 Initial test hookup 1 Prepare for the adjustment NOTE Store the power sensor correction factors in the power meter if not yet When you use the Agilent 437B power meter refer to Storing Cal Factors in the Power Meter on page 5 4 Turn off the signal generator power meter and analyzer Connect the power sensor output to the power meter input See Figure 5 2 Connect the signal generator output through an 50 Q N N coaxial cable followed by a 10 dB attenuator and an N adapter to the power sensor input RSA3303A RSA3308A 1 g gg222 oo Power meter GPIB cable GPIB cable Occo J OR aj 10 dB attenuator N adapter Power sensor Connect the GPIB cables on the signal generator the power meter and the analyzer rear panel Turn on the signal generato
150. dard Accessories 7 3 Optional ZNCCeSSODIGS irae B aed Rd 7 3 Electrical Parts List Diagrams Mechanical Parts List Keplacceablie CINIS a2 3 9 4993 TERR ARP SCR 10 1 Parts Ordering Information 10 1 Using the Replaceable Parts List 10 3 RSA3303A amp RSA3308A Service Manual lil Table of Contents List of Figures Figure 1 1 Figure 1 2 Figure 1 3 Figure 1 4 Figure 1 5 Figure 1 6 Figure 2 1 Figure 2 2 Figure 2 3 Figure 2 4 Figure 2 5 Figure 2 6 Figure 2 7 Figure 2 8 Figure 2 9 Figure 2 10 Figure 2 11 Figure 2 12 Figure 2 13 Figure 2 14 Figure 2 15 Figure 2 16 Figure 2 17 Figure 2 18 Figure 2 19 Figure 2 20 Figure 2 21 Figure 2 22 Figure 2 23 wavefor Figure 2 24 Figure 2 25 Figure 2 26 Figure 2 27 Concept of the swept spectrum analyzer 1 3 Sweep of resolution filtrer 1 3 Concept of the real time spectrum analyzer 1 4 Concurrent acquisition 1 4 Frame acquisition 1 5 BIOCK 6 44606 6544646 6 2d6s ow s 1 6 AC Input rear panel 2 4 Principal power switch rear panel 2 5 Front panel power switch ON STANDBY
151. de gt Figure 2 11 Frequency span and amplitude settings Setting Center Frequency The center frequency is set to 1 5 GHz and span is set to 15 MHz when you and Span power on the analyzer Change the settings of center frequency and span to display the waveform around 100 MHz 1 Press the FREQUENCY CHANNEL key on the front panel MEASUREMENT FREQUENCY CHANNEL key gt jon or SPAN AMPLITUDE TRIG RBW FFT E gt GV 2 16 RSA3303A amp RSA3308A Service Manual Operating Instructions The FREQUENCY CHANNEL menu shown in Figure 2 12 1s displayed on the right side of the screen Notice that the Frequency menu item is available for entering the numeric value for center frequency Center Freq _ Indicates that the general purpose knob Hz Y is available XXX lt Numeric value input field Figure 2 12 Menu items for numeric value input You can change the value using the general purpose knob or enter the value using the numeric value entry keypad shown in Figure 2 13 2 Enter the new center frequency at 100 MHz As the interval between 1 5 GHz current setting and 100 MHz is wide it is more convenient to use the keypad here Press 1 0 0 MHz in order on the keypad The GHz MHz kHz and Hz keys also function as the enter key When you press any of these keys
152. description SCREW MACHINE M4X8MM L PNH STL ZN C PL CROSS REC W FLAT amp LOCK WASHER CLAMP CABLE CLIP LOCKING WIRE NYLON GASKET SHIELD CONDUCTIVE URETHAN FOAM 2MM X 4MM W ADHESIVE BUSHING BUSHING NYLON GRAY SCREW MACHINE M3X6MM L PNH STL MFZN C CROSS REC W FLAT amp LOCK WASHER SCREW MACHINE M4X8MM L PNH STL ZN C PL CROSS REC W FLAT amp LOCK WASHER BRACKET SUPPORT DIGITAL BOARD GUIDE CKT BD NYLON BRACKET SUPPORT REAR CIRCUIT BD ASSY A70 DC POWER 389 B161 XX WIRED CIRCUIT BD ASSY A40 MEMORY 389 B163 XX WIRED CIRCUIT BD ASSY A30 TRIGGER 389 B164 XX WIRED OPTION 02 CIRCUIT BD ASSY A20 DDC 389 B162 XX WIRED SCREW MACHINE M3X6MM L PNH STL MFZN C CROSS REC W FLAT amp LOCK WASHER BRACKET SHIELD A20 BOARD SCREW MACHINE M4X8MM L PNH STL ZN C PL CROSS REC W FLAT amp LOCK WASHER CIRCUIT BD ASSY A10 AD 389 B160 XX WIRED WCA200A STD CIRCUIT BD ASSY A10 AD 389 B160 XX WIRED WCA200A 03 SCREW MACHINE M4X8MM L PNH STL ZN C PL CROSS REC W FLAT amp LOCK WASHER BRACKET SHIELD DIGITAL BOARD SCREW MACHINE M3X6MM L PNH STL MFZN C CROSS REC W FLAT amp LOCK WASHER GASKET SHIELD CONDUCTIVE FORM STRIP 3 3MM X 4 8MM W ADHESIVE 320 L CA ASSY SP ELEC 30 30AWG 20CM W HLDR W SHIELD DF19 30S 1C CONN CIRCUIT BD ASSY A50 MOTHER 389 B165 XX WIRED SCREW MACHINE M3X12MM L PNH STL ZN CM1 W K PLAIN amp SPLIT WASHER CLAMP CABLE CLIP LOCKING WIRE NYLON RSA3303A amp RSA3308A Service Manual Replaceable Parts
153. e Marker X Position menu item is selected Using the general purpose knob or the numeric input keypad move the marker to a reference point see Figure 2 21 2 24 RSA3303A amp RSA32308A Service Manual Operating Instructions Tektronix RSA 3308A Frequency 100 MHz Span 20 kHz Input Att 20 dB 03 08 08 14 24 48 PAUSE MARKER SETUP Cancel Back Select Marker Readout of the selected marker OLG L Trace 2 lt N Select Marker Marker 1 Marker 2 10 2 gt Center 100 MHz Spectrum Analyzer Measurement Off Delta marker measurement value SSESSTY maker 99 998 MHz Selects the active marker Marker X Positi Markers Off Single Delta Reference Cursor to Marker X lt F Markers Delta is selected here to show 1 and 2 lt Marker 1 Reference Cursor Off Selected Marker Off Step Size Marker X 20 Go to page 2 Span 20 kHz of 2 99 998 Marker X Position MHz Figure 2 21 Measurement with the delta marker RSA3303A amp RSA3308A Service Manual S Press the Select Marker side key top to select 2 making Marker 2 active You can also select the marker using the MARKERS SELECT key on the front panel The MARKERS SELECT key and the Select Marker side key have the same function 6 The Marker X Position menu it
154. e marker readout Confirm that the residual signal level is 85 dBm or less within the whole bandwidth RSA3303A amp RSA3308A Service Manual 4 47 Performance Tests Test Record Photocopy the following test record pages and use them to record the perfor mance test results for your analyzer 4 48 RSA3303A amp RSA3308A Service Manual Performance Tests RSA3303A RSA3308A Test Record Serial Number Certificate Number Calibration Date Technician 10 MHz reference output test High limit Accuracy 9 999 998 8 Hz s 10 000 001 2 Hz Absolute amplitude accuracy test 10 MHz 10 dBm 10 3 dBm w _9 7 dBm 50 MHz 20 dBm 20 5 dBm EE 19 5 dBm Input attenuator setting uncertainty test RSA3303A amp RSA3308A Service Manual 4 49 Performance Tests Input attenuator setting uncertainty test Cont Spectrum purity test 3 d order intermodulation distortion test Test result High limit 3 d order intermodulation distortion 74 dBc 5 dBm reference level 2 GHz center frequency 4 50 RSA3303A amp RSA3308A Service Manual Performance Tests Frequency readout test Spurious response test Frequency High limit 5 GHz RSA3308A only ERN NI 70 dBc 7 GHz RSA33084 only 70 dBc Displayed average noise level test Frequency High limit 3 GHz RSA3308A only 150 dBm Hz 7 GHz RSA3308A only 2M2dBmlHz Residual response test RSA3303A amp RSA3308A Service Manual 4 51 Performance Tests 4
155. easurement Off Figure 2 24 Comparison display with averaged waveform 7 Press the Trace 2 Type side key again and select Off to remove Trace 2 2 30 RSA3303A amp RSA3308A Service Manual Operating Instructions Displaying a Spectrogram The spectrogram view is a useful tool to observe spectrum changes in time series in a three dimensional view The horizontal and vertical axes indicate frequency and frame number respectively and the color axis represents amplitude Display the spectrogram using the following steps 1 Press the MODE S A key DISPLAY UTILITY MODE VIEW S A key SJA SELECT HELP PRESET SCALE LINES INPUT LOAD MARKERS TIME SELECT CAL SAVE 000 2 2 Press the S A with Spectrogram side key 3 If no waveform is displayed press the RUN STOP key to acquire data The spectrum and spectrogram are displayed concurrently see Figure 2 25 30 dB Spectrum gt m Center 100 MHz Span 20 kHz Spectrogram gt Center 100 MHz Span 20 kHz Figure 2 25 Concurrent display of spectrum and spectrogram RSA3303A amp RSA3308A Service Manual 2 31 Operating Instructions 2 32 4 Display the spectrum and spectrogram side by side a Press the VIEW DEFINE key DISPLAY MODE VIEW S A SELECT nene H VIEW DEFINE key Modifies display format MARKERS TIME CFI ECT b Press the View Orientation side key to select Tall Tektro
156. ector Modify the analyzer controls as follows Center frequency 100 MHz Span 15 MHz Reference level 0 dBm Is the spectrum measured as follows Frequency 422 MHz 10 Hz Amplitude 39 dBm Yes Replace RF2 module Modify the signal generator controls as follows Frequency 100 MHz Level 10 dBm No Unplug the coaxial cable W106 on the RF3 module See Figure 6 35 Using another spectrum analyzer measure the output at the cable end Changing the span from 15 MHz to 10 kHz step by step with the general purpose knob check the signal level and the noise floor at the all span settings the spectrum measured as follows Frequency 3 5 GHz Amplitude 45 dBm Is the signal level and noise floor correct Ye Replace RF3 module Replace A20 DDC board Yes No Check gain and offset values of The analyzer is OK the programmable band pass filter See Figure 6 37 in the service menu Refer to Reconfiguration of RF Modules on page 5 20 Enter the correct gain and offset values No ofthe programmable band pass filter Are the gain and offset values set correctly Refer to Reconfiguration of RF Modules on page 5 20 Yes Replace Restart the analyzer Programmable band pass filter or A100 Interconnection board Figure 6 34 Troubleshooting procedure 3 Signal path Cont 6 74 RSA3303A amp RSA3308A Service Manual Troubleshooti
157. ed a 2 Phillips screwdriver Items and 3 b Locate the side panel assembly in the Chassis modules locator diagram Figure 6 10 page 6 20 c Remove the cabinet Refer to the Cabinet procedure on page 6 22 Orient the analyzer Set the analyzer so its bottom 1s down on the work surface and its left side is facing you Perform the CPU Board and Disk Modules procedure on page 6 31 to remove the CPU board and the disk bracket RSA3303A amp RSA3308A Service Manual 6 61 Removal and Installation Procedures 4 Remove the side panel assembly See Figure 6 29 a Remove the three screws securing the shield bracket through side panel to the main chassis b Remove the two screws securing the side panel to the main chassis Pull the side panel away c Pull out the stopper bracket to complete the removal S Reinstallation Reverse steps and 4 to reinstall the side panel assembly a d NN d To J300 on A70 De To J302 on A70 A x 4 A Figure 6 29 Fan and side panel removal 6 62 RSA3303A amp RSA3308A Service Manual Removal and nstallation Procedures Board Guide Bracket 1 Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items and 3 b Locate the board guide bracket In the Chassis modules diagram Figure 6 10 page 6 20
158. em is selected Using the general purpose knob or the numeric input keypad move the marker to a measurement point see Figure 2 21 The difference between the two marker positions is indicated in the upper left part of the screen 7 Press the Markers side key to select Single The analyzer returns to the single marker mode 2 25 Operating Instructions Searching for the Peak 2 26 Measure the frequency interval between the maximum intensity spectrum and the peak to its left by using the delta marker and peak search functions together 1 Press the PEAK key on the front panel Marker moves to the maximum intensity spectrum SCALE LINES MARKERS TIME SELECT PEAK key Positions the marker at the maximum peak MARKER SETUP DOB B Press Markers side key to select Delta The fixed marker O appears at the active marker position Press the Select Marker side key to select 2 making Marker 2 active Press the marker right key P gt to move the marker to the next signal peak to the right Try it several times Press the marker left key lt Q to move the marker to the next signal peak to the left Try it several times Using the marker left or right key put the marker to the measurement peak RSA3303A amp RSA3308A Service Manual Operating Instructions The difference between the two marker positions Is shown in the upper left part of the screen see Figure 2 22
159. ems 1 and 3 and a inch wrench Item 11 b Locate the RF2 module in the locator diagram RF Modules Figure 6 3 page 6 13 Orient the analyzer Set the analyzer so the bottom is down on the work surface and its front is facing you Remove the RF2 module See Figure 6 15 Also see Figure 6 35 on page 6 75 for the cable interconnection a Using a 6 inch wrench disconnect SMA cable W201 on the module b Unplug the following SMB cables on the RF2 module W208 W207 W307 W21 W22 and W23 c Remove the two screws securing the module to the main chassis Lift the module up Reinstallation Reverse step 3 to reinstall the RF2 module RSA3303A amp RSA3308A Service Manual 6 27 Removal and Installation Procedures RF4 module RF5 module RF2 module du RF3 module e Figure 6 15 RF modules removal 6 28 RSA3303A amp RSA3308A Service Manual Removal and nstallation Procedures RF3 Module 1 Assemble equipment and locate module to be removed a b You will need a 2 Phillips screwdriver Items 1 and 3 an SMA torque driver with a long type bit Items 5 and 6 and a inch wrench Item 11 Locate the RF3 module in the locator diagram RF Modules Figure 6 3 page 6 13 2 Orient the analyzer Set the analyzer so the bottom is down o
160. ency 1 5 GHz Span 15 MHz Normal re cane Trace 2 Off Channel Power Carrier Frequency 100 dBm Center 1 5 GHz Seated Measurement Off Spectrum Analyzer Measurement Off Figure 2 4 Initial screen If UNCAL is displayed on top of the screen run the gain calibration routine refer to Gain Calibration on page 5 10 CAUTION Never apply signals with a combined amplitude greater than 30 dBm to the RF INPUT connector If you exceed this input rating you can permanently damage the analyzer The RF INPUT connector is shown in Figure 2 5 CO C CO OOO e C KR RF INPUT connector 30 dBm DC Figure 2 5 RF INPUT connector 2 6 RSA3303A amp RSA3308A Service Manual Installation Setting Up the Stand To set up the stand place the analyzer on a table Lift the front of the analyzer and pull out the stand until it is perpendicular to the analyzer
161. eneral purpose knob to move the marker to a measurement point see Figure 2 20 RSA3303A amp RSA3308A Service Manual 2 23 Operating Instructions Tektronix RSA 3308A 03 08 08 14 20 48 PAUSE MARKER SETUP SS Frequency 100 MHz RBW 200 Hz Cancel Back Span 20 kHz Trace 1 Normal Select Marker Input Att 20 dB Trace 2 Off Marker X Z Marker X Position I uus Sets the horizontal position of the Markers marker using the general purpose knob or numeric input keypad Off Single Delta Marker 1 Reference Cursor to Marker X Marker readout 10 dB Reference Cursor Off Selected Marker Step Size Marker X 20 dim m Center 100 MHz Span 20 kHz Gone 2 Spectrum Analyzer Measurement Off Marker X Position MHz 99 999 Figure 2 20 Measurement with a single marker Measuring Difference with on Marker 1 and 2 to measure the difference in amplitude and frequency Delta Marker the screen the symbol O represents the active marker and represents the fixed marker You can operate only the active marker 1 Press the MARKER SETUP key on the front panel 2 Press the Markers side key to select Delta The fixed marker lt gt appears at the active marker position 3 Make sure that 1 Marker 1 is selected in the Select Marker menu item This means that Marker 1 is the active marker 4 Th
162. ep Attenuator 1 and 2 You must calibrate baseband gain m You must calibrate RF gain and RF flatness for RF1 2 and 3 bands Programmable Band pass Filter YTF m You need to change the gain and offset values of Tune DAC in the DEBUG menu You can find the gain and offset values in a label located on the YTF module m You must calibrate RF gain IF flatness and RF flatness for RF2 and 3 bands A100 Interconnection Board m You must calibrate RF gain for RFI band Hard Disk Drive m Full calibration is necessary because the cal factors are lost B Attach anew Windows license label RSA3303A amp RSA3308A Service Manual Options w Z i amp BE 8 Options and Accessories This chapter describes the vartous options as well as the standard and optional accessories that are available for the RSA3303A and RSA3308A Real Time Spectrum Analyzers Options The following options can be ordered for the analyzer Option 1A External preamplifier 20 dB gain to 3 GHz Option IR Rack Mount Kit includes hardware and instructions for converting to 19 inch rackmount configuration Option L5 Provides Japanese language user manual and programmer manual instead of English manuals Option 02 256 MB data memory with frequency mask trigger Option 03 IQ input function Option 21 General purpose modulation analysis Option C3 Calibration service 3 years Option C5 Calibration service 5 years Option D1 Cal
163. erformance formally and report the test records RSA3303A amp RSA3308A Service Manual 4 9 Performance Tests Prerequisites The tests in this section comprise an extensive valid confirmation of perfor mance and functionality when the following requirements are met m The cabinet must be installed on the analyzer The instrument must have passed the procedures under Brief Procedures found on page 4 3 A signal path compensation must have been done within the recommended calibration interval and at a temperature within 3 C of the present operating temperature If at the time you did the prerequisite Brief Proce dures the temperature was within the limits just stated consider this prerequisite met m The analyzer must have been last adjusted at an ambient temperature between 20 C and 30 C must have been operating for a warm up period of at least 20 minutes and must be operating at an ambient tempera ture of between 10 C and 40 C The warm up requirement is usually met in the course of meeting the Brief Procedures prerequisites listed above The SG flatness floppy disks must be prepared Item 17 in Table 4 3 For the procedure to create or update the flatness correction files refer to Making Flatness Correction Files on page 5 6 Equipment Required Table 4 3 Test equipment number and description 1 2 1 Signal generator 1 Signal generator These procedures use ex
164. ey to select Average 3 Press the Number of Averages side key to specify how many traces are accumulated to create the averaged waveform In this example enter 64 with the numeric keypad Press 6 4 ENTER in order 4 Press the RUN STOP key on the front panel to acquire waveform 2 28 RSA3303A amp RSA3308A Service Manual Operating Instructions The averaged waveform is displayed on the screen The average count is shown in the upper right part of the screen see Figure 2 23 When the waveform is acquired in the free run mode the averaging is done with exponential RMS root mean square This method continues the average with an exponential weighting applied to old values using the number of averages 64 in this example as the weighting factor Tektronix RSA 3308A TRACE AVG Frequency 100 MHz RBW 200 Hz Cancel Back Span 20 kHz Trace 1 Average C64 64 Select Trace Input Att 20 dB Trace 2 Off Trace 1 an Freeze off Trace 1 Type Average Number Of Averages 54 0 dBm Average count Trace 1 Type Selects the type of processing for the selected trace 10 db Reset Average Display Detection Max Load Trace Center 100 MHz Span 20 kHz Save Trace Spectrum Analyzer Measurement Off Number Of Averages 64 Figure 2 23 Comparing a new waveform with an averaged waveform 5 Press the Reset Average side key to restart averaging R
165. f the analyzer Power on the analyzer and the generator s Set the GPIB address of the generator s ranging from 1 to 30 If you use two generators assign a unique address to each instrument Insert the SG flatness floppy disk Item 17 for the generator Item 1 to the floppy disk drive of the analyzer Initialize the analyzer m Press the SYSTEM key on the front panel m Press the Reset to Factory Defaults side key 2 Perform the self calibration Press the CAL key on the front panel Press the Calibrate Gain side key to execute the gain calibration and check that the calibration terminates normally Press the Calibrate Center Offset side key to execute the center offset calibration and check that the calibration terminates normally Modify the analyzer controls m Press the FREQUENCY CHANNEL key m With the Center Freq side key set the frequency to 10 MHz using the numeric keypad to operate the analyzer in the baseband Press the CAL key Press the Calibrate DC Offset side key to execute the DC offset calibration and check that the calibration terminates normally RSA3303A amp RSA3308A Service Manual 4 13 Performance Tests 3 Check the baseband flatness Press Service Password in the CAL menu Input 270833 and then press ENTER using the numeric keypad Press the side key PV BB Flatness PV Set the GPIB address of the generator Press the SG side key to select the manufacturer of
166. ffset calibration When DC offset appears at 0 Hz in the baseband run the calibration Figure 5 7 DC offset 1 Press the CAL key on the front panel see Figure 5 5 2 Press the Calibrate DC Offset side key The calibration runs It takes several seconds to complete the process When you want to perform the gain center offset and DC offset calibration together press the Calibrate side key RSA3303A amp RSA3308A Service Manual 9 13 Adjustment Procedures Auto Calibration The auto calibration uses the internal routines to adjust gain and flatness of the analyzer Equipment One signal generator Items 1 One signal generator Item 2 for RSA3308A only One waveform generator Item 3 for Option 03 only One 50 BNC coaxial cable Item 7 One 50 N N coaxial cable Item 8 Three GPIB cables Item 9 Two 50 terminators Item 10 One RF attenuator Item 11 One SG flatness floppy disk Item 15 One AWG520 setup floppy disk Item 16 Prerequisites Refer to page 5 1 oignal generator Item 2 oignal generator Item 1 GPIB cable GPIB cable aJ 2 Output 10dB attenuator For RSA3308A only 50 N N coaxial cable em 000000000 0 Q tU w
167. fied file RSA3303A amp RSA3308A Service Manual Performance Tests STOP Step 11 and 12 are the tests in the RF2 and RF3 bands for RSA3308A only For RSA3303A skip to step 13 11 Change the signal generator a b Disconnect the N N cable from the signal generator Item 1 output Connect the N N cable to the signal generator Item 2 output See Figure 4 6 on page 4 12 12 Check spurious response in the RF2 and bands for RSA3308A a Modify the analyzer settings f m Press the SG side key to select the manufacturer of the generator HP or Anritsu m Press the GPIB Address side key and set the generator address m Press the Threshold side key and set the value to 70 dBc Press the Band side key to select the frequency band RF2 first Press the Measurement side key A file selection box appears the default directory is My Documents Enter a file name for example SyntheTable2 pv using the keyboard If necessary change the directory Click the Open button with the mouse The test starts If spurious occurred the frequency is written in text format to the specified file Repeat substeps b to e for the RF3 band 13 Check the log files Check the file contents using a word processor such as Notepad on the Windows desktop with the mouse and the keyboard 14 Disconnect the hookup a b C Disconnect the N N cable at the generator output and the analyzer input Turn off
168. filter bandwidth are observed at one point In time Signal is detected first and then signal B is detected and displayed NOTE An intermittent signal such as a burst phenomenon will not be detected unless it is present at the exact moment that the filter is being swept past it Sweep Fstart Stop Figure 1 2 Sweep of resolution filter RSA3303A amp RSA3308A Service Manual 1 3 Product Overview Real Time Spectrum real time spectrum analyzer is conceptually equipped with a series of Analyzer bandpass filters as shown in Figure 1 3 Signals passing through those filters are concurrently observed and recorded continuously Signals A and B are concur rently acquired and displayed as shown in Figure 1 4 x gt F Resolution x filter 1 Detector 1 ll Resolution ui filter 2 Detector 2 ia Display Resolution filter 3 Detector 3 Resolution filter N Detector N Figure 1 3 Concept of the real time spectrum analyzer Concurrent acquisition Fstart Fstop Figure 1 4 Concurrent acquisition 1 4 RSA3303A amp RSA32308A Service Manual Product Overview The method used to concurrently acquire signals in a certain frequency range is not bandpass filters but FFT Fast Fourier Transformation The RSA3303A or RSA3308A first acquires a series of frames of data In the time domain as shown
169. he A60 Front key board b Using the 12 mm nutdriver remove the nut securing the rotary encoder to the front bezel Reinstallation Reverse steps 3 and 4 to reinstall the rotary encoder and the general purpose knob RSA3303A amp RSA3308A Service Manual Removal and nstallation Procedures PRO Preamp power from J810 on the Mother board When removing the A61 power switch board spread the catches at left and right sides on the front bracket before pulling the board backward When removing the front bezel grasp its back edge and vigorously flex it upward before pulling it forward SSSSSSSSSSN WO CEEE CEEE NOSSA VEEE WWWW AGGL Q WWW VN N BRAD V NWWW BOO N A INS N J60 on the Mother board Figure 6 27 Front panel modules removal Front Bezel Menu Buttons 1 and Front Panel Assemble equipment and locate modules to be removed No tools are needed Locate the modules to be removed in the locator diagram Front panel modules Figure 6 9 page 6 19 Orient the front panel assembly Set the front panel assembly so its back is down on the work surface and its front is facing you Remove the front bezel and menu buttons See Figure 6 27 Grasp the front bezel by its top edge pry it up and
170. her verifying that the analyzer functions properly The Diagnostics uses internal routines to verify that the instrument functions properly and passes the internal circuit tests The following section provides the details RSA3303A amp RSA3308A Service Manual 4 3 Brief Procedures Functional Check 4 4 The analyzer has a built In calibration signal source with amplitude of 1 mately 20 dBm and frequency of 50 MHz Using this source perform this quick functional check to verify that your instrument 1 operating correctly Equipment None Required Prerequisites Power on the analyzer and allow a 20 minute warm up before doing this procedure 1 Initialize the analyzer a b Press the SYSTEM key on the front panel Press the Reset All to Factory Defaults side key 2 Check the system version and options a b C Press the SYSTEM key on the front panel Press the Versions and Installed Options side key Check the version at the Main System field and the options in the option table 3 Check the display brightness Press the Cancel Back top side key Press the Display Brightness side key Change the value from 0 to 100 using the general purpose knob to check that the brightness changes normally 4 Display spectrum of the calibration signal a Press the S A key on the front panel and then press the Spectrum Analyzer side key Press the PRESET key on the front pa
171. ibration data report Option D3 Calibration data report 3 years requires Option C3 Option D5 Calibration data report 5 years requires Option C5 Option R3 Repair service 3 years Option R5 Repair service 5 years Power cord options listed in Table 7 1 RSA3303A amp RSA3308A Service Manual 7 1 Options and Accessories Table 7 1 Power cord identification Plug configuration Option number North America 120 V Universal Euro 230 V United Kingdom 230 V Australia 240 V North America 240 V Switzerland 220 V China A10 240 V No power cord supplied A99 1 2 RSA3303A amp RSA3308A Service Manual Options and Accessories Standard Accessories All analyzers in this series are shipped with the accessories listed in Table 7 2 Table 7 2 Standard accessories Accessory Part number English language user manual 071 1409 XX English language programmer manual 071 1411 XX U S power cord 161 0066 XX USB mouse 119 B145 XX USB keyboard 119 B146 XX BNC N adapter 103 0045 XX Front cover 200 A524 50 Optional Accessories You can order the accessories listed in Table 7 3 to use with your analyzer Table 7 3 Optional accessories Accessory Part number Japanese language user manual 071 1408 XX Japanese language programmer manual 071 1410 XX Service manual 071 1412 XX Accessory bag 016 A330 00 Preamplifier 20 dB gain to 3 GHz 650 A900 XX Rack mount kit for field conversion RSA3303A
172. ice Manual Installation Turning on the Analyzer 1 Turn on the principal power switch on the rear panel Principal power switch Figure 2 2 Principal power switch rear panel When you turn on the principal power switch a voltage is applied to the analyzer standby circuit Make sure the LED next to the power switch on the front panel lights up in orange 2 Turn on the power switch ON STANDBY on the lower left of the front panel The LED next to the power switch changes to green F Power switch a N Es i Se 000000000 VM 1 Nee m 7 2 Figure 2 3 Front panel power switch ON STANDBY switch When you turn on the analyzer Windows XP boots up After several minutes the analyzer application starts up The initial screen appears as shown in Figure 2 4 The displayed spectrum represents the noise floor of the analyzer RSA3303A amp RSA3308A Service Manual 2 5 Installation MEASURE Cancel Back Frequ
173. ice Manual 5 1 Adjustment Procedures Equipment Required Table 5 1 lists the test equipment required to adjust the RSA3303A RSA3308A analyzer Table 5 1 Test equipment number and description Minimum requirements Purpose 1 Signal generator Frequency range 10 kHz to 3 5 GHz Agilent 86480 Adjusting baseband and RF Variable amplitude from 70 dBm to flatness 13 dBm into 50 Accuracy lt 1 dB Function FM 2 Signal generator Frequency range 10 MHz to 8 GHz Agilent 83712B Adjusting RF flatness for Output level 4 dBm to 10 dBm RSA3308A Accuracy lt 1 dB 3 Waveform generator Arbitrary waveform Two output Tektronix AWG520 2 software based adjustments channels Sampling frequency 50 kHz to 1 GHz Amplitude range 20 mV to 2 V 4 Frequency counter Frequency range 10 MHz Agilent 53132A option 010 Checking the reference out Aging rate 5 10 10 day put frequency accuracy Accuracy 0 01 ppm at 10 MHz 5 power meter 3 1 MHz to 8 GHz Agilent 437B Adjusting the signal generator Agilent E4418B 4 output level 6 RF power sensor 3 10 MHz to 8 GHz RF Flatness 396 Agilent 8481A Adjusting the signal generator Uncertainty of calibration factor data Agilent E4412A output level 296 RSS 7 BNC cable 50 36 in male to male BNC Tektronix part number Signal interconnection connectors 012 1341 00 8 N Ncable 50 36 in male to male Signal interconnection connectors 9
174. ify the analyzer controls as follows Center frequency 3 5 GHz Span 1 MHz Reference level 0 dBm Perform the gain calibration Refer to page 5 10 Modify the signal generator controls as follows Frequency 3 5 GHz Level 10 dBm Does the display report any errors No Is the spectrum displayed with correct frequency and amplitude Yes Unplug the coaxial cable W119 from J302 on the A100 Interconnection board See Figure 6 36 6 37 Using another spectrum analyzer measure the output at the connector No Is the spectrum measured as follows Frequency 50 MHz 10 Hz Amplitude 30 dBm Unplug the coaxial cable W13 from J301 on the A100 Interconnection board See Figure 6 36 6 37 Using another spectrum analyzer measure the output at the connector the spectrum measured as follows Frequency 50 MHz 10 Hz Amplitude 30 dBm Replace RF4 module Yes Replace Replace A100 Interconnection board Step attenuator 1 or the output level increase to 18 dBm 2 dB transiently when pressing the Calibrate Gain side key No A100 Interconnection board Figure 6 34 Troubleshooting procedure 3 Signal path Cont RSA3303A amp RSA3308A Service Manual 6 73 Troubleshootine From page 6 73 Span check Unplug the coaxial cable W307 on the RF3 module See Figure 6 35 Using another spectrum analyzer measure the output at the conn
175. in Figure 1 5 and then performs the FFT process for each frame This method enables continuous analysis of spectra and ensures the capture of real time phenomenon such as burst signals in digital mobile communication The RSA3303A and the RSA3308A are equipped with a 51 2 MHz A D converter to analyze the spectrum by single scanning for spans up to 15 MHz Time Frame pee eee eee EM Bom LLL N AL X X F Figure 1 5 Frame acquisition RSA3303A amp RSA3308A Service Manual 1 5 Product Overview Architecture Figure 1 6 shows the block diagram of the signal processing system EE D IF sampling l Q input lt A D converter Option Input NC optional el NWA RF input GHz 8 GHz IF sampling Digital down converter A D converter down converter p FFT Extended trigger optional La External trigger input Trigger detection Data memory Memory controller 64 MB standard 256 MB optional Local bus PCI bridge mmemnre JL Windows Display board PC Front panel key 0000 HDD USB Mass Storage HDD Devices FDD N External interface GPIB VGA Figure 1 6 Block diagram 1 6 RSA3303A amp RSA3308A Service Manual Product Overview 3 GHz 8 GHz Dow
176. ing It switches to pass the internal calibration signal when self gain cal ibration is selected The step attenuator 1 that follows is the Programmable Attenuator of 10 dB step and attenuates the input signal up to 50 dB Band Relay performs switching of the signal paths between 1 band and RF2 3 band In baseband and RFI band fine adjustment to the level of input signal is done with Step Attenuator 2 to take full advantage of high dynamic range characteristics of RSA3303A RSA3308A Step Attenuator 2 is the Program mable Fine Attenuator of 2 dB step and attenuates the signal up to 8 dB In RF2 3 band bandwidth of the signal is limited with a Programmable Band pass Filter to avoid occurrence of images and or spurious signals This Programmable BPF is able to adjust its center frequency in the range of 3 5 GHz to 8 GHz and adjustment to the center frequency is achieved with the current output from the A100 Interconnection board In a same way other attenuators and relays are controlled with currents from the A100 Interconnection board On the A100 Interconnection board various components are installed such as a group of registers to save the setup data from Hardware Controller driver circuits for relays and attenuators D A converter circuit for generation of tuning current to Programmable BPF ALC circuit to maintain the amplitude of the calibration signal at a constant level and other components RSA3303A amp RSA3308A Service
177. ing module removal and installation and fault isolation to the module m Options contains information on servicing factory installed options m Electrical Parts List contains a statement referring you to Mechanical Parts List where both electrical and mechanical modules are listed m Diagrams contains a block diagram and an interconnection diagram m Mechanical Parts List includes a table of all replaceable modules their descriptions and their Tektronix part numbers RSA3303A amp RSA3308A Service Manual XV Preface Manual Conventions This manual uses certain conventions that you should become familiar with Some sections of the manual contain procedures for you to perform To keep those Instructions clear and consistent this manual uses the following conven tions m Names of front panel controls and menus appear in the same case initial capitals all uppercase etc in the manual as 15 used on the analyzer front panel and menus Front panel names are all upper case letters for example SPAN TRIG and SELECT m Instruction steps are numbered unless there 1s only one step Modules Throughout this manual any replaceable component assembly or part of the analyzer is referred to generically as a module In general a module is an assembly like a circuit board rather than a component like a resistor or an integrated circuit Sometimes a single component is a module for example the chassis of the analyzer is a mod
178. key and set the value to 20 kHz using the general purpose knob c Check against limits Read the phase noise C No at the bottom of the screen Confirm that the value is 105 dB Hz or more 4 Check phase noise for a span of 5 MHz a Modify the analyzer controls Press the SPAN key on the front panel With the Span side key set the span to 5 MHz using the general purpose knob or the numeric keypad Press the RBW FFT key on the front panel Press the RBW FFT side key to select Man Press the Extended Resolution side key to select On With the RBW side key set the RBW to 5 kHz b Perform the C N measurement Select MEASURE gt C N gt MEAS SETUP Press the Offset Frequency side key and set the value to 1 MHz using the general purpose knob Press the Noise Bandwidth side key and set the value to 200 kHz using the general purpose knob c Check against limits Read the phase noise C No at the bottom of the screen Confirm the value is 125 dB Hz or more 5 Disconnect the test equipment Disconnect the cable at the analyzer input RSA3303A amp RSA3308A Service Manual 4 31 Performance Tests 3 d Order Intermodulation Check that the 3 order intermodulation distortion is within the specified range Distortion Test the analyzer Equipment Two signal generators Items 2 and 4 Required One power combiner Item 8 Three 50 N SMA coaxial cables Item 11 Prerequisites Refer to page 4 10
179. l occupancy behavior over time m Capture and characterization of undesired unknown or interfering signals Device system design or operational diagnostic measurement m Getting answers to elusive EMI problems m VCO synthesizer design m RFID device characterization m General purpose digital modulation vector signal analysis Option m Spectrum monitoring m Radar measurements Difference between RSA3303A and RSA3308A The RSA3303A and the RSA3308A have the same functions except for their measurement frequency ranges RSA3303A DC to 3 GHz RSA3308A DC to 8 GHz Descriptions in this manual apply to both the RSA3303A and the RSA3308A unless otherwise noted 1 2 RSA3303A amp RSA32308A Service Manual Product Overview Real Time Analysis This section explains real time analysis with the comparison of conventional swept spectrum analyzer and real time spectrum analyzer Conventional Swept Figure 1 1 is a block diagram of the conventional swept spectrum analyzer Spectrum Analyzer There are two RF input signals in this example The RF signal is converted to IF intermediate frequency by the swept local oscillator IF output goes through a bandpass filter where resolution of the spectrum analyzer is defined gt E Mixer gt Local oscillator Figure 1 1 Concept of the swept spectrum analyzer The filter is swept from to Fstop See Figure 1 2 Only signals within the
180. laceable Parts e LAINO S PE IVES Figure 10 14 1 10 31 RSA3303A amp RSA3308A Service Manual Replaceable Parts Replaceable parts list Fig amp index number 10 15 1 2 10 32 Tektronix part number 174 C016 XX 211 0871 XX 407 A701 XX 348 145 174 C015 XX 407 A705 XX 348 146 436 A016 XX 344 0557 211 1028 XX 211 8800 XX 211 8800 XX 211 A039 XX 386 A866 XX 220 0193 XX 407 A708 XX 407 A052 XX 351 A167 XX 212 A012 XX 333 A447 XX 211 A044 XX 211 1040 XX Serial No effective Serial No discont d Gty poo A Co Name amp description CA ASSY SP ELEC 8 AWG26 40CM L PLUG amp JACK PANEL MOUNT W SHIELD LAN SCREW MACHINE M3X6MM L PNH STL ZN PL CROSS REC W FLAT 7MM OD amp LOCK WASHER BRACKET LAN CONNECTOR SHLD GSKT ELEC CONDUCTIVE URETHANE FOAM W4 8 X H5 1 W ADHESIVE TAPE CA ASSY SP ELEC 4 AWG26 40CM L PLUG amp JACK PANEL MOUNT W SHIELD USB BRACKET SUPPORT USB AL GASKET SHIELD CONDUCTIVE URETHANE FOAM 6X6 DRAWER RACK MOUNT WCA230A 280A CLIP CABLE WIRE SADDLE 11 1MMX14 7MM 66 NYLON SCREW MACHINE M4X8MM L PNH STL ZN C PL CROSS REC W FLAT amp LOCK WASHER SCREW MACHINE M4X8MM L BDGH STL ZN C SCREW MACHINE M4X8MM L BDGH STL ZN C SCREW MACHINE M4X14MM L PNH STL ZN PL CROSS REC W FLAT amp LOCK WASHER PLATE NUT NUT PLAIN HEX M4X7MM HEX STL ZN C
181. low box at the top of the screen see Figure 5 4 If this happens run the gain calibration When UNCAL is displayed run the gain calibration UNCAL FREE RUN Frequency S pan Input Att Figure 5 4 UNCAL display To run the gain calibration do the following RSA3303A amp RSA3308A Service Manual Adjustment Procedures NOTE When you run the gain calibration during signal acquisition the calibration begins after the acquisition is completed 1 Press the CAL key on the front panel see Figure 5 5 2 Press the Calibrate Gain side key The calibration runs It takes several seconds to complete the process When you want to perform the gain center offset and DC offset calibration together press the Calibrate All side key 3 If you press the Auto Calibration side key to select Yes the calibration will run automatically any time the analyzer gain drifts to an uncal state CAL menu CAL UTILITY Cancel Back HELP PRESET Calibrate all Calibrate All INPUT LOAD Gain calibration Calibrate Gain Center offset calibration Calibrate Center CAL key gt CAL SAVE Offset Calibrate DC uu SYSTEM DC offset calibration Offset PRINT Auto Calibration Auto Calibration Select Yes or No Yes No MACRO SETUP pPirtit mired Figure 5 5 Calibration menu RSA3303A amp RSA3308A Service
182. ltage Compliance was demonstrated to the following specification as listed in the Official Journal of the European Union Low Voltage Directive 73 23 EEC amended by 93 68 EEC EN 61010 1 2001 U S Nationally Recognized Testing Laboratory UL61010B 1 Listing Canadian Certification 22 2 No 1010 1 Additional Compliance ANSI ISA 582 02 01 1999 IEC61010 1 oafety requirements for electrical equipment for measurement control and laboratory use otandard for electrical measuring and test equipment CSA safety requirements for electrical and electronic measuring and test equipment oafety standard for electrical and electronic test measuring controlling and related equipment oafety requirements for electrical equipment for measurement control and laboratory use 1 Emissions which exceed the levels required by this standard may occur when this equipment is connected to a test object 1 24 RSA3303A amp RSA3308A Service Manual Specifications Table 1 23 Certifications and compliances Cont Characteristic Installation Overvoltage Category Pollution Degree Safety Certification Compliance Equipment Type Safety Class Operating Temperature Range Overvoltage Category Pollution Degree Description Terminals on this product may have different installation overvoltage category designations The installation categories are CAT IlI Distribution level mains usually permanently connecte
183. lue be Po 3 Check the amplitude for the attenuation from 2 to 30 dB a b d Press AMPLITUDE RF Att and set the attenuation initially 2 dB Press the PEAK key on the front panel to place the marker on the peak Record the peak amplitude at the marker readout Let the value be Px Check that the error Px Po 1 within 0 5 dB Repeat substeps a through d for attenuation from 2 to 30 dB in 2 dB steps 4 Modify the generator controls RSA3303A amp RSA3308A Service Manual Amplitude 5 dBm 4 27 Performance Tests 5 Modify the analyzer controls a Press the AMPLITUDE key on the front panel b With the Ref Level side key set the reference level to 0 dBm using the general purpose knob c Make sure that RF Att is set to 30 dB 6 Measure the reference amplitude at 30 dB attenuation a Press the PEAK key on the front panel to place the marker on the peak b Record the peak amplitude at the marker readout as the reference value Let the value be P 7 Check the amplitude for attenuation from 32 to 50 dB a Press AMPLITUDE gt RF Att and set the attenuation initially 32 dB b Press the PEAK key on the front panel to place the marker on the peak Record the peak amplitude at the marker readout Let the value be Px d Check that the error Px P4 is within 0 5 dB e Repeat substeps a through d for attenuation from 32 to 50 dB in 2 dB steps 8
184. m 16 Tektronix part number 063 3680 00 onto the AWG520 hard disk before executing the calibration The following two setup files total about 10 KB are contained in the setup floppy disk iqgain i wfm iqgain q wfm Copy all the files from the setup disk directory wca200 to the AWG520 directory wca200 For copying files from a floppy disk to AWG520 refer to the AWG500 Series User Manual NOTE When you copy the setup files on AWG520 use lowercase letters to enter the file names RSA3303A amp RSA3308A Service Manual 9 9 Adjustment Procedures Self Calibration Gain Calibration Perform these routines to optimize the analyzer performance Gain calibration m Center offset calibration m DC offset calibration Each item is explained in this section Equipment None Required Prerequisites Power on the analyzer and allow a 20 minute warm up before doing this procedure The gain calibration calibrates the analyzer s amplifier gain using the internal signal generator Run this internal calibration routine as required when you boot the analyzer or when UNCAL uncalibrated is displayed during operation Allow the analyzer to warm up for 20 minutes before you begin the calibration The warm up period allows electrical performance of the analyzer to stabilize During normal operation when the ambient temperature changes by more than 5 C from the temperature at the last calibration UNCAL is displayed in the yel
185. m Press the FREQUENCY CHANNEL key on the front panel m With the Center Freq side key set the frequency to 5 GHz using the numeric keypad Measure peak frequency m Press the PEAK key to place the marker on the peak signal B Read the marker readout Confirm that the value is 5 GHz 1 5 kHz B Press MEASURE gt Carrier Frequency B Read the measurement result at the bottom of the screen Confirm that the value is 5 GHz 510 Hz 5 Check frequency accuracy in the band for RSA3308A a Modify the generator control Frequency 7 GHz b Modify the analyzer controls m Press the FREQUENCY CHANNEL key on the front panel m With the Center Freq side key set the frequency to 7 GHz using the numeric keypad Measure peak frequency m Press the PEAK key to place the marker on the peak signal B Read the marker readout Confirm that the value is 7 GHz 1 7 kHz m Press MEASURE Carrier Frequency B Read the measurement result at the bottom of the screen Confirm that the value is 7 GHz 710 Hz 6 Disconnect the test equipment Disconnect the cable at the analyzer input RSA3303A amp RSA3308A Service Manual 4 37 Performance Tests Spurious Response Test Check that the spurious response is within the specified range for the analyzer Equipment One signal generator Item 2 Required q One 50 coaxial cable Item 10 Prerequisites Refer to page 4 10 RSA3303A RSA3308A CO
186. ment One signal generator Item 1 Required qu One 50 Q N N coaxial cable Item 8 1 Modify the DAC setting a Press the CAL key on the front panel b Press the side key Service Password c Input 270833 and then press ENTER using the numeric keypad d Press the side key DEBUG YTO Tune DAC e Press the Gain side key and input the gain of the RF3 module f Press the Offset side key and input the offset of the RF3 module 2 Prepare for the adjustment a Set the signal generator controls 32206655655 vases 1500 MHz Amplitude 10 dBm On b Hook up the signal generator Connect the generator output through a 50 Q N N coaxial cable to the analyzer INPUT See Figure 5 11 5 20 RSA3303A amp RSA3308A Service Manual Adjustment Procedures RSA3303A RSA3308A Signal generator 50 coaxial cable Figure 5 11 Test hookup Initialize the analyzer m Press the SYSTEM key on the front panel m Press the Reset All to Factory Defaults side key d Modify the default settings Press the SPAN key on the front panel m With the Span side key set the span to 3 GHz using the numeric keypad 3 Check the spectrum Confirm that a spectrum displays at 1 5 GHz 4 Disconnect
187. n Reverse step 2 to reinstall the line cord Assemble equipment Obtain a 2 Phillips screwdriver Items 1 and 3 Orient the analyzer Set the analyzer so its bottom 1s down on the work surface and the rear panel is facing you Remove the cabinet See Figure 6 12 a Remove the one screw securing the rear foot over the cabinet to the rear panel at each corner b Remove the center two screws securing the cabinet to the rear panel c Slide the cabinet backward As you remove the cabinet take care not to bind or snag it on the analyzer s internal cabling Reinstallation Reverse step 3 to reinstall the cabinet RSA3303A amp RSA3308A Service Manual Removal and nstallation Procedures Figure 6 12 Line cord and cabinet removal FrontCushion 1 Assemble equipment and locate modules to be removed a You will need a 2 Phillips screwdriver Items 1 and 3 b Locate the front cushion in the External modules diagram Figure 6 2 2 Orient the analyzer Set the analyzer so its bottom is down on the work surface and its front is facing you 3 Remove the front cushion See Figure 6 13 a Remove the two screws securing the front cushion to the side panel at each side b Lifting the front of the analyzer slightly move the front cushion away 4 Reinstallation Reverse step 3 to reinstall the front cushion RSA3303A amp RSA3308A Service Manual 6 23 Removal and Installation Procedures
188. n Converter IF Sampling AJD Converter Digital Down Converter FFT Extended Trigger Optional Converts the RF signal input through the front panel INPUT connector into a 20 MHz IF signal This converter processes signals up to 3 GHz for RSA3303A and 8 GHz for RSA3308A by IF conversions in three stages A 10 MHz oscillator provides a high accuracy reference for all stages of IF conversion The converter also adjusts signals for A D conversion using a low noise amplifier fine tuning attenuator and anti alias filter The output signal from the down converter is sent to the IF sampling A D converter described below The IF analog output from the down converter enters the A D converter through the fine tuning attenuator low noise amplifier and anti alias filter to be converted into a digital signal The sampling rate of the A D converter is 51 2 MHz with a resolution of 14 bits The digital down converter splits the real signal from the A D converter into complex I and Q components and limits the frequency span of the resulting signal With Option 03 you can enter I and Q signals at this point in the block diagram The down converter performs span and center frequency fine tuning This converter consists of two primary stages In the baseband the first stage converts a 0 to 15 MHz real signal into a complex signal of 7 5 MHz The second stage converts frequency to set any center frequency A decimating filter between stages ch
189. n PC with the following format for a power sensor NO sensor ID number 0 to 9 SENSOR type of the sensor SERIAL serial number of the sensor REFCF ref cal factor frequency cal factor Information about these items is on the surface of the power sensor except the sensor ID number which you specify Input the calibration factors for the test or adjustment frequency range An example is shown below frequency range 0 1 to 9 GHz 2 SENSOR HP8485A SERIAL 3318A16046 REFCF 99 0 0 1 9 99 1 2 9 98 1 4e9 97 1 6e9 96 5 7e9 96 2 8e9 96 0 9e9 95 8 Save the file with the extension of cal for example sensor2 cal You can load the file to the power meter using a floppy disk or through network RSA3303A amp RSA3308A Service Manual Adjustment Procedures 2 Install the hookup and preset the instrument controls a Turn off the power meter and the analyzer b Connect the GPIB cables on the power meter and the analyzer rear panel RSA3303A RSA3308A 5 S i 55 555 Power meter ccco GPIB cable Ro 5 E Figure 5 1 Hookup for storing the cal factors in the power meter c Connect a mouse and a keyboard to the analyzer d Turn on the power me
190. n the parts list Parts list column descriptions Column Columnname Description 1 Figure amp index number Items in this section are referenced by figure and index numbers to the exploded view illustrations that follow 2 Tektronix part number Use this part number when ordering replacement parts from Tektronix 4 Serial number Column three indicates the serial number at which the part was first effective Column four indicates the serial number at which the part was discontinued No entries indicates the part is good for all serial numbers 5 This indicates the quantity of parts used 6 Name amp description An item name is separated from the description by a colon Because of space limitations an item name may sometimes appear as incomplete Use the U S Federal Catalog handbook H6 1 for further item name identification Abbreviations Abbreviations conform to American National Standard ANSI Y 1 1 1972 RSA3303A amp RSA3308A Service Manual 10 3 Replaceable Parts Replaceable parts list Fig amp index number 10 1 1 E 28 4 5 6 8 9 10 4 Tektronix part number 200 A524 XX 348 152 211 A039 XX 348 150 384 223 437 A013 XX 437 0508 XX 211 A004 XX 348 151 213 A249 XX 367 0247 XX 200 2191 XX 348 1110 161 0230 Serial No effective Serial No discont d Qty N A A O Name amp description CO
191. n the work surface and its front is facing you 3 Remove the module See Figure 6 15 Also see Figure 6 35 on page 6 75 for the cable interconnection a Using inch wrench disconnect the SMA cable W201 on the RF3 module Using a SMA torque driver with a long type bit Item 5 and 6 disconnect the SMA cable W105 on the RF3 module RSA3308A only Using 26 inch wrench disconnect the SMA cable W106 on the RF3 module Unplug the SMB cables W26 W27 and W307 on the RF3 module Unplug the cable W28 on the RF4 module not on the RF3 as the connector is hard to reach from the top Remove the two screws securing the module to the main chassis Lift the module up 4 Reinstallation Reverse step 3 to reinstall the RF3 module RSA3303A amp RSA3308A Service Manual 6 29 Removal and Installation Procedures RF4 Module RF5 Module 6 30 1 Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver b Locate the RF4 module in the locator diagram RF Modules Figure 6 3 page 6 13 Orient the analyzer Set the analyzer so the bottom is down on the work surface and its front is facing you Remove the RF4 module See Figure 6 15 Also see Figure 6 35 on page 6 75 for the cable interconnection a Unplug the following SMB cables on the RF4 module W27 W23 W26 W13 W21 W32 W22 and W29 b Unplug the cable W28 on the RF4 module c Remove the two sc
192. nal generator Ro Output 50 Q N N coaxial cable Figure 4 11 Hookup for checking the absolute amplitude accuracy b Initialize the analyzer m Press the SYSTEM key on the front panel Press the Reset All to Factory Defaults side key c Modify the default settings m Press FREQUENCY CHANNEL key on the front panel m With the Center Freq side key set the frequency to 10 MHz using the numeric keypad W Press the SPAN key on the front panel m With the Span side key set the span to 10 MHz using the general purpose knob 4 Check the amplitude a Press the PEAK key on the front panel to place the marker on the peak b Check that the marker readout is within 10 dBm 0 3 dB 5 Disconnect the hookup Disconnect the cable at the analyzer input RSA3303A amp RSA3308A Service Manual Performance Tests RF RSA3303A RF1 RSA3308A Band Test 6 Modify the signal generator output a Hook up the test equipment Connect the signal generator output through a 50 2 N N coaxial cable to the power sensor input See Figure 4 10 on page 4 23 b Modify the signal generator controls 50 MHz Po c m PE 20 dBm c Modify the power meter control FEOqUODO V vau uus be dioe nen 50 MHz d Adjust the output level of the signal generator
193. ndows on line help for information on using the Back Up tool For the analyzer the user generated files consist of these four types of files which have these extensions m STA Status file IQT Data file m TRC Trace file m Amplitude correction file 2 Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items 1 and 3 b Locate the hard disk drive in the CPU board and disk modules diagram Figure 6 4 page 6 14 3 Orient the analyzer Set the analyzer so its bottom is down on the work surface and its left side is facing you 4 Remove the disk bracket See Figure 6 17 a Remove the two screws securing the disk bracket to the shield bracket b Remove the two screws securing the disk bracket to the main chassis c Lift up the disk bracket containing the hard disk drive and the floppy disk drive 5 Remove the hard disk drive a Remove the four screws securing the hard disk drive to the disk bracket b Lift the hard disk drive up away 6 Reinstallation Reverse step 4 and 5 to reinstall the hard disk drive RSA3303A amp RSA3308A Service Manual 6 33 Removal and Installation Procedures J122 J120 J112 J114 J110 0000000000 0000000000
194. nel to reset the analyzer Press the INPUT key on the front panel Press the Signal Input Port side key to select Cal The spectrum of the calibration signal appears Check that INPUT CAL and FREE RUN are displayed in the status indicator at the upper right of the screen see Figure 4 1 RSA3303A amp RSA3308A Service Manual Brief Procedures RSA3303A amp RSA3308A Service Manual B PUT Tektronix RSA 3308A 03 03 14 16 42 09 Y i t Frequency 50 MHz 80kHz Cancel Back Span 15 MHz Trace 1 Normal Signal Input Port Input Att _ 20 dB Trace 2 Off arker 50 MHz Status indicator Kam Cal 20 44 dBm 69 47 dBm Hz Reference Source u dBm Int Ext Marker readout m Marker 10 dB Center 50 MHz Span 15 MHz Spectrum Analyzer Measurement Off Figure 4 1 Spectrum of the calibration signal 50 MHz 20 dBm 5 Check the center frequency and peak amplitude using the marker a Press the PEAK key on the front panel to place the marker on the peak see Figure 4 1 b Check the marker readouts on screen The frequency should be 50 MHz and the amplitude should be approximately 20 dBm c Press the MARKER SETUP key on the front panel and then the Markers side key to select Off Check that the marker disappears 6 Check the RBW Resolution Bandwidth while changing the span setting a Press the SPAN key on the front panel b C
195. neral purpose knob search for the minimum amplitude in the graph Record the minimum amplitude at the marker readout B Check that the maximum and the minimum values are within 1 2 dB STOP Steps 6 through 9b the tests the RF2 bands RSA3308A only For RSA3303A skip to step 9c 6 Change the signal generator a b Disconnect the N N cable from the signal generator Item 1 output Connect the N N cable to the signal generator Item 2 output See Figure 4 6 on page 4 12 again Replace the SG flatness floppy disk Fject the SG flatness floppy disk from the disk drive of the analyzer Insert the SG flatness floppy disk for the signal generator Item 2 7 Check the IF flatness in the RF2 and bands for RSA3308A Press the side key Cancel Back twice IF Flatness PV Set the GPIB address of the generator m Press the SG side key to select the manufacturer of the generator HP or Anritsu m Press the GPIB Address side key and set the generator address Press the Band side key to select the frequency band RF2 first Press the Measurement side key A file selection box appears the default directory 15 My Documents Enter a file name for example F2Flatness pv using the keyboard If necessary change the directory RSA3303A amp RSA3308A Service Manual Performance Tests f Click the Open button with the mouse The test starts The result is writ
196. nerator e Power on the analyzer and the generator s f Set the GPIB address of the generator s Signal generator Item 1 l or 5 Signal generator Item 2 or 5 not the same as above Waveform generator Item 3 3 g Insert the SG flatness floppy disk Item 15 for the signal generator Item 1 to the disk drive of the analyzer h Initialize the analyzer m Press the SYSTEM key on the front panel m Press the Reset to Factory Defaults side key 2 Modify the analyzer settings a Press the CAL key on the front panel b Press the side key Service Password c Input 270833 and then press ENTER using the numeric keypad d Press the CAL side key RSA3303A amp RSA3308A Service Manual 9 15 Adjustment Procedures e Press the SG Address side key to set the GPIB address of the generator l or 5 f Press the SG Type side key to select the manufacturer of the generator HP or Anritsu g Press the Target Files side key to select the calibration items B All Perform all calibration The results are overwritten to the existing log files m Absent Perform the calibration that has no log file 3 Perform calibration in the baseband a Press the BB side key to perform calibration NOTE Alternatively you can select BB to perform calibration in both the baseband and the RF RSA3303A RFI RSA3308A band In this case skip to step 5 b Wait It takes several minutes to c
197. ng Rear TRIG TRIG Q Q l REF REF GPIB N OUT N N N IN OUT LL E LE d LL d d Ed W75 To fan W43 w42 W41 W40 J DG power 40 7 A30 Trigger Optional A20 gt A DDC Z2 P A10 uw A D A W25 Q O O RF5 W31 W30 W32 W29 W208 W400 RF4 gt T Q W207 RSA3308A only W28 Jwz Z To J300 on A100 s RF3 W23 mer pas NS To prog BPF D lt W106 W201 1999990499 HDD Front connection FDD x W66 cff 33 pan CPU gt 7 J700 J810 J60
198. ng the numeric keypad RSA3303A amp RSA3308A Service Manual 4 35 Performance Tests Press the SPAN key on the front panel With the Span side key set the span to 1 MHz using the general purpose knob b Measure peak frequency Press the PEAK key to place the marker on the peak signal Read the marker readout Confirm that the value is 10 MHz 1 kHz Press MEASURE Carrier Frequency Read the measurement result at the bottom of the screen Confirm that the value is 10 MHz 1 2 Hz 3 Check frequency accuracy in the RF RSA3303A RF1 RSA3308A band a Modify the generator control 05 6 EET iS 2 GHz b Modify the analyzer controls Press the FREQUENCY CHANNEL key on the front panel With the Center Freq side key set the frequency to 2 GHz using the numeric keypad c Measure peak frequency Press the PEAK key to place the marker on the peak signal Read the marker readout Confirm that the value is 2 GHz x 1 2 kHz Press MEASURE Carrier Frequency Read the measurement result at the bottom of the screen Confirm that the value is 2 GHz 210 Hz STOP Steps 4 and 5 are the tests in the RF2 and RF3 bands for RSA3308A only For RSA3303A skip to step 6 4 36 RSA3303A amp RSA3308A Service Manual Performance Tests 4 Check frequency accuracy in the RF2 band for RSA3308A a Modify the generator control Frequency 5 GHz b Modify the analyzer controls
199. nix RSA 3308A 03 08 08 14 35 25 VIEW DEFINE RBW 200 Hz Cancel Back Trace 1 Normal Spectrogram Trace 2 Off Frequency 100 MHz Span 20 kHz Input Att 20 dB Off On 0 Show Views dBm Single Multi View Orientation Tall Wide Grid Style Off Fix Flex 10 dB 100 dBm 100 0 dBm Center 100 MHz Span 20 kHz Center 100 MHz Span 20 kHz Menu Off S A with Spectrogram Measurement Off Figure 2 26 Tall display of spectrum and spectrogram c Press the View Orientation side key to select Wide RSA3303A amp RSA3308A Service Manual Operating Instructions 5 Display spectrogram only a Press the VIEW SELECT key and then select the spectrogram on the display The selected view is framed in white on screen DISPLAY MODE VIEW m LINES VIEW SELECT key MARKERS Selects a view to operate p A 7 The selected view is surrounded by a white frame TIME CFI b Press the VIEW DEFINE key and then press the Show Views side key to select Single Only the spectrogram is displayed see Figure 2 27 The new frame is displayed in order from the bottom Amplitude is represented in color _ gt Default scale is from Red 0dBm to Blue 100dBm Center 100 MHz Span 20 kHz gt Frequency Figure 2 27 Spectrogram view c Press the Show Views side key again to return to Multi RSA3303A amp RSA3308A Servi
200. nnector See Figure 6 28 a Using a 6 inch wrench disconnect the SMA cable W101 at INPUT See Figure 6 36 RSA3303A page 6 76 or Figure 6 37 RSA3308A page 6 77 for cable interconnection b Using a 2 Phillips screwdriver remove the three screws securing the connector plate to the front sub panel Remove the connector with the plate from the front sub panel c Using the 6 inch nutdriver remove the nut securing the connector to the plate Remove the connector from the plate 4 Reinstallation Reverse step 3 to reinstall the RF input connector LCD Display Assemble equipment locate module to removed a You will need a 2 Phillips screwdriver Items and 3 b Locate the LCD display in the locator diagram Front panel modules Figure 6 9 page 6 19 Remove the front panel assembly Refer to Front Panel Assembly procedure page 6 55 2 Orient the analyzer Set the analyzer so its bottom is down on the work surface and its front is facing you 3 Remove the inverter See Figure 6 28 a Unplug the cables at CN1 and CN2 on the inverter b Remove the two screws securing the inverter to the front sub panel RSA3303A amp RSA3308A Service Manual 6 59 Removal and nstallation Procedures 4 Remove the LCD display See Figure 6 28 a Unplug the cables at CN1 and CN2 on the inverter b Remove the two screws securing the inverter to the front sub panel Lift up an
201. nput impedance VSWR Typical Maximum input level Maximum DC voltage Maximum input power Input attenuator RF Baseband attenuator I Q attenuator Table 1 5 Amplitude Characteristics Reference level Reference level setting range Accuracy 10 to 50 dBm Description 90 dBc Hz 107 dBc Hz 108 dBc Hz 108 dBc Hz 115 dBc Hz 131 dBc Hz 133 dBc Hz 133 dBc Hz Description N type RF and baseband input BNC type Option 03 IQ input 50 2 1 4 2 5 GHz RF attenuation210 dB 1 8 7 5 GHz RF attenuation210 dB RSA3308A only 1 4 300 kHz to 10 MHz RF attenuation210 dB 1 3 10 MHz to GHz RF attenuation210 dB 1 4 8 GHz to 8 GHz RF attenuation210 dB RSA3308A only 0 2 V RF RF1 to 3 5V Baseband 5V Option 03 IQ input 30 dBm RF RF1 to 3 RF attenuation210 dB 0 to 50 dB 2 dB step in RF RF1 Baseband 10 dB step in RF2 RF3 0 to 30 dB 10 dB step Description 30 to 20 dBm 2 dB step Baseband 51 to 30 dBm 1 dB step RF RF1 50 to 30 dBm 1 dB step RF2 RF3 RSA3308A only 10 to 20 dBm 10 dB step Option 03 IQ input 0 2 dB at 50 MHz 10 dB attenuation 20 to 30 RSA3303A amp RSA3308A Service Manual Specifications Table 1 5 Amplitude Cont Characteristics Frequency response RF attenuation210 dB V at 20 to 30 Typical at 10 to 40 C V Absolute amplitude accuracy at calibration point 0 dB attenuation 20 to 30
202. nsitive 9 1 Voltage equivalent for levels voltage discharged from a 100 pF capacitor through resistance of 100 ohms RSA3303A amp RSA3308A Service Manual 1 100 to 500 V 6 600 to 800 V 2 200 to 500 V 7 400 to 1000 V est 3 250 V 8 900 V 4 500 V 9 1200 V 5 400 to 600 V 6 3 Maintenance Inspection and Cleaning General Care Inspection and Cleaning Procedures A Inspection and Cleaning describes how to inspect for dirt and damage It also describes how to clean the exterior and interior of the analyzer Inspection and cleaning are done as preventive maintenance Preventive maintenance when done regularly may prevent analyzer malfunction and enhance its reliability Preventive maintenance consists of visually inspecting and cleaning the analyzer and using general care when operating it How often to do maintenance depends on the severity of the environment in which the analyzer is used A proper time to perform preventive maintenance is just before analyzer adjustment The cabinet helps keep dust out of the analyzer and should normally be in place when operating the analyzer Inspect and clean the analyzer as often as operating conditions require The collection of dirt on components inside can cause them to overheat and break down Dirt acts as an insulating blanket preventing efficient heat dissipation Dirt also provides an electrical conduction path that could cause an analyzer fail
203. nterfaces with peripheral devices such as HDD FDD LCD USB and keys with the CPU board The GPIB controller is also installed on the Front Connection board and its output bus is connected to the GPIB connector located on the real panel via the 50 Mother board and the A70 DC Power board RSA3303A amp RSA3308A Service Manual Performance Verification __ i GL h h OSOS Performance Verification Two types of Performance Verification procedures can be performed on this product Brief Procedures and Performance Tests You may not need to perform all of these procedures depending on what you want to accomplish m To rapidly confirm that the analyzer functions properly and was adjusted properly do the brief procedures under Functional Tests and Diagnostics which begin on page 4 3 Advantages These procedures are quick to do require no external equipment or signal sources and perform functional and accuracy testing to provide high confidence that the analyzer will perform properly They can be used as a quick check before making a series of important measurements m If more extensive confirmation of performance is desired do the Perfor mance Tests beginning on page 4 9 after doing the Functional Tests and Diagnostics just referenced Advantages These procedures add direct checking of warranted specifica tions They require more time to perform and suitable test equipment is required Refer to Equipment Required on
204. ocedures that follows to understand how the procedures are grouped Then read Equipment Required for a list of the tools needed to remove and install modules in this analyzer If you are removing a module for service begin by doing the procedure Access Procedure page 6 21 By following the instructions in that procedure you remove the module to be serviced while removing the minimum number of additional modules 6 8 RSA3303A amp RSA3308A Service Manual Removal and nstallation Procedures Summary of Procedures The procedures are described in the order 1 which they appear in this section In addition you can look up any procedure for removal and reinstallation of any module in the Table of Contents of this manual The Access Procedure on page 6 21 first directs you to the procedure s if any that are required to access the module to be serviced then it directs you to the procedure to remove that module Table 6 4 Summary of procedures Procedure Procedures for external modules Procedures for RF Modules Procedures for CPU board and disk modules Procedures for mother board and its daughter boards Procedures for power supply modules on the bottom Procedures for RF1 modules on the bottom Procedures for front panel modules Procedures for chassis modules RSA3303A amp RSA3308A Service Manual m Line cord Cabinet RF2 module RF3 module CPU board Hard disk drive m A
205. oise at 2 GHz in the RF RSA3303A RFI RSA3308A band a Modify the analyzer control Press the FREQUENCY CHANNEL key on the front panel With the Center Freq side key set the frequency to 2 GHz using the general purpose knob Press the AMPLITUDE key on the front panel With the Ref Level side key set the level to 40 dBm using the general purpose knob Press the RF Atten Mixer side key to select RF Att With the RF Att side key set the attenuation to dB using the general purpose knob b Check against limits Read the measurement result of Density at the bottom of the screen Check that the value is 150 dBm Hz or less 4 Check noise at 3 GHz in the RF RSA3303A RFI RSA3308A band a Modify the analyzer control Press the FREQUENCY CHANNEL key on the front panel With the Center Freq side key set the frequency to 3 GHz using the general purpose knob b Check against limits Read the measurement result of Density at the bottom of the screen Check that the value is 150 dBm Hz or less 4 42 RSA3303A amp RSA3308A Service Manual Performance Tests 5 Check noise at 7 GHz in the band for RSA3308A only a Modify the analyzer control m Press FREQUENCY CHANNEL key on the front panel m With the Center Freq side key set the frequency to 7 GHz using the general purpose knob b Check against limits Read the measurement result of Density at the bottom of the screen Check that the
206. omplete the calibration 4 Perform calibration in the RF RSA3303A RFI RSA3308A band a Press the RF1 side key to perform calibration b Wait It takes several minutes to complete the calibration 5 Modify the hookup a Disconnect the 10 dB attenuator at the generator output b Connect the generator Item 2 output through a 10 dB attenuator followed by a 50 2 N N coaxial cable to the analyzer INPUT c Replace the SG flatness floppy disk SG flatness floppy disk from the disk drive of the analyzer m Insert the SG flatness floppy disk for the signal generator Item 2 6 Perform calibration in the RF2 band for RSA3308A only a Press the RF2 side key to perform calibration NOTE RSA3308A only Alternatively you can select RF2 RF3 to perform calibration in RF2 and RF3 bands In this case skip to step 6 b Wait It takes several minutes to complete the calibration 5 16 RSA3303A amp RSA3308A Service Manual Adjustment Procedures 7 Perform calibration in the RF3 band for RSA3308A only a Press the side key to perform calibration b Wait It takes several minutes to complete the calibration 8 Option 03 only Perform calibration for IQ input a Press the IQ side key to perform calibration b Wait It takes several minutes to complete the calibration 9 Disconnect the test equipment a Disconnect the cable from the analyzer input b Turn off the analyzer and generators c Disc
207. on board Step attenuator 2 for RSA3308A Input relay and step attenuator I and 2 for RSA3303A Input relay programmable band pass filter YTF step attenuator I and band relay for RSA3308A Assemble equipment and locate module to be removed a You will need a 1 Phillips screwdriver Items 1 and 2 b Locate the A100 Interconnection board in the locator diagram Bottom modules RF 1 Figure 6 8 page 6 18 Orient the analyzer Set the analyzer so its top is down on the work surface and its left side is facing you Remove the A100 Interconnection board See Figure 6 23 Also see Figure 6 36 RSA3303A or 6 37 RSA3308A for cable interconnection a Unplug the cable at J100 on the A100 board b Do one of the following steps depending your instrument ForRSA3303A Unplug the cables at J120 J230 and J130 on the A100 board For RSA3308A Unplug the cables at J111 J120 J110 J130 and J280 on the A100 board Unplug the SMB cables at J300 and J302 on the A100 board d Remove the two screws securing the base plate through the A100 board to the main chassis e Remove the two screws securing the A100 board to the main chassis Lift the board up away Reinstallation Reverse step 3 to reinstall the A100 board RSA3303A amp RSA3308A Service Manual Removal and nstallation Procedures J300 J302 J111
208. on the programmable band pass filter RSA3303A amp RSA3308A Service Manual Removal and nstallation Procedures Remove the two screws securing the base plate through the A100 Interconnection board to the main chassis d Remove the four screws securing the base plate to the main chassis Lift up the base plate with the modules When removing the A150 YTF interface board unsolder it at four points un AS MEUM 9 3 9 we Pd D 100 E m d P s Figure 6 25 RF1 modules removal 2 RSA3308A RSA3303A amp RSA3308A Service Manual 6 53 Removal and nstallation Procedures 5 Remove the input relay a Using 6 inch wrench disconnect the SMA cables W101 W120 and W119 on the input relay b Disconnect the cable W114 on the input relay c Remove the two screws securing the input relay to the base plate Lift up the input relay 6 Remove the programmable band pass filter a Using 1 6 inch wrench disconnect the SMA cable W123 on the filter b Remove the four screws securing the bracket to the base plate Lift up the bracket with the filter c Remove the four screws securing the filter to the bracket d Remove the 3 dB attenuator at each side of the filter using 2 6 inch wrench 7 Remove the step attenuator 1 a Remove the three screws securing the bracket to the base pl
209. onfirm that the span is 15 MHz and the RBW is 80 kHz in the setup display on the upper part of the screen see Figure 4 2 4 5 Brief Procedures 4 6 Setup display C 9b Span RBW Span setting RSA 3308A 03 09 29 13 40 53 INPUT CAL et Frearieneci S0 MHz WBW 80 kHz input ALL Traces NUT mal zu Trace 2 Off Start Freq Hz Figure 4 2 Setup display C d Using the general purpose knob change the span setting as listed in Table 4 1 and check that the RBW 15 displayed correctly Table 4 1 Span and RBW Span RBW 15 MHz 80 kHz 5 MHz 20 kHz 100 kHz 500 Hz 1 kHz 20 Hz Using the numeric keypad set the span back to 15 MHz Press 1 5 MHz in that order on the keypad 7 Check the reference level a b Press the AMPLITUDE key on the front panel Make sure that the reference level is set to dBm with the Ref Level side key Check that 0 dBm is displayed on the upper left side of the graticule see Figure 4 3 Use the general purpose knob to set the reference level to 30 dBm Confirm that A D OVERFLOW is indicated in the red box at the top center of the screen Make sure that 30 dBm is displayed on the upper left side of the graticule and that the spectrum waveform is distorted as shown in Figure 4 3 Using the numeric keypad set the reference level back to 0 dBm Press 0 ENTER in that order on the keypad
210. onnect the GPIB cables from all the ports RSA3303A amp RSA3308A Service Manual 5 17 Adjustment Procedures Reference Oscillator Frequency Adjustment This procedure adjusts the output frequency of the 10 MHz internal reference oscillator Equipment One frequency counter Item 4 50 Q BNC coaxial cable Item 7 One 50 Q terminator Item 10 One adjustment tool Item 17 Prerequisites Warm up the analyzer for more than 20 minutes and the frequency counter for more than 24 hours RSA3303A RSA3308A rear HOGS REF OUT x Frequency counter k O CH1 input 50 Q terminator 50 BNC coaxial cable Figure 5 9 Initial test hookup 1 Prepare for the adjustment a Access the inside of the analyzer See Removal and Installation Procedures in Section 6 to remove the cabinet b Hook up the frequency counter Connect REF OUT on the rear panel of the analyzer through a 50 Q precision coaxial cable and a 50 Q precision terminator to Channel 1 of the counter See Figure 5 9 c Set the counter controls PONCHON Frequency 1 Gate time uossushasla gys 2s 5 18 RSA3303A amp RSA3308A Service Manual Adjustment Procedures 2 Adjust the reference frequency Adjust R232 on the A500 step amplifier oscillator interface board in the RF5 module so that the frequency
211. other Board A60 Front Key Board Power Supply 3 is the standby power supply unit which continuously supplies power to some areas of the CPU board and the 10 MHz Reference Oscillator even if the Power Switch on the main unit is turned off standby mode Unless the Principal Power Switch located on the rear panel is turned off Power Supply 3 continues to output power voltages Because of this remove AC power before opening the enclosure to perform servicing inside The Standby Power Supply always maintains the ACPI power control function for the CPU board to be active With this function the CPU board recognizes the On status of the On Standby Switch even in the power off condition and is able to output the power on signal to Power Supply 1 and 2 units To enable accurate high frequency measurements just after power on power 1 also supplied to the 10 MHz Oscillator OC XO from Standby Power Supply unit The A50 Mother board distributes power to all boards modules as well as interfacing of control signals and data with the CPU Other devices such as the PCI Bridge Local Bus Controller and Bus Buffer for CPU bus expansion are also on the 50 Mother board A microprocessor for key control is installed on the A60 Front Key board Various processes such as serial conversion of key scan key code and signal transmission to the CPU board are performed on this board A62 Front Connection Board 3 6 The A62 Front Connection board i
212. oubleshooting From page 6 70 RF1 band check Modify the signal generator controls as follows Frequency 10 MHz Level 30 dBm Modify the signal generator controls as follows Output Off Change the reference level from 20 to 30 dBm in one dB step on the analyzer Modify the analyzer controls as follows Center frequency 100 MHz Span 1 MHz Reference level 0 dBm Is the spectrum displayed with correct amplitude Yes Perform the center offset calibration Refer to No page 5 12 the spectrum displayed with correct amplitude at the reference level of 20 dBm 10 dBm 0 dBm and 10 dBm No Replace Step attenuator 1 or A100 Interconnection board Yes the spectrum displayed with correct amplitude at the reference level of 2 dBm 4 dBm 6 dBm and 8 dBm No Replace Step attenuator 2 or A100 Interconnection board Yes Replace the A D board To page 6 72 Is the level of spurious signal at center screen 95 dBm or less No Replace Yes 10 A D board or A20 DDC board Modify the signal generator controls as follows Frequency 100 MHz Level 10 dBm Is the spectrum displayed with correct frequency and amplitude Yes No Unplug the coaxial cable W32 on the RF5 module See Figure 6 35 Using another spectrum analyzer measure the output at the connector
213. owing flowcharts m Figure 6 32 Troubleshooting Procedure 1 Power supply system m Figure 6 33 Troubleshooting Procedure 2 CPU and Display system m Figure 6 34 Troubleshooting Procedure 3 Signal path If a fault is detected first check that the power unit is operating properly according to Troubleshooting Procedure 1 Power supply modules Then locate the faulty board according to the troubleshooting tree for each fault or the symptom cause table RSA3303A amp RSA3308A Service Manual 6 67 Troubleshooting Use this procedure to determine if an analyzer problem is caused by the low voltage power supply Connect the analyzer to the correct power source Turn on the PRINCIPAL POWER SWITCH on the rear panel and then STANDBY SWITCH on the front panel Are the two fans on the left side working NO Yes 5 fan on the CPU board working No Yes Do the twelve power indicators LED on the A70 DC power board light See Figure 6 38 Check the test point voltages on A70 see Table 6 7 and Figure 6 38 Are the voltages OK Yes The power supply is OK NOTE Turn off the analyzer using the STANDBY SWITCH when Windows XP is running m PRINCIPAL POWER SWITCH when Windows XP is not booted Check the power supply voltages on Replace the failed power supply module the power supply 1 2 and 3 modules See Table 6 6 and Figu
214. page 4 10 RSA3303A amp RSA3308A Service Manual 4 1 Performance Verification Conventions 4 2 Throughout these procedures the following conventions apply Each test procedure uses the following general format Title of Test Equipment Required Prerequisites Procedure Each procedure consists of as many steps substeps and subparts as required to do the test Steps substeps and subparts are sequenced as follows First Step a First Substep First Subpart m Second Subpart b Second Substep Second Step Instructions for menu selection follow this format FRONT PANEL KEY Side Menu Key Submenu Key For example Press MODE DEMOD gt Digital Demod Constellation MODE DEMOD indicates the DEMOD key in the MODE menu area on the front panel In steps and substeps the lead in statement in italics instructs you what to do while the instructions that follow tell you how to do it In the example step below Set the WCA260A analyzer controls by doing Press MODE DEMOD gt Digital Demod gt Constellation Set the WCA280A analyzer controls Press MODE DEMOD gt Digital Demod Constellation STOP The symbol at the left is accompanied by information you must read to do the procedure properly RSA3303A amp RSA3308A Service Manual w i e 2 hl h h h h h h l h l s Brief Procedures The Functional Tests utilize the internal calibration signal as a test signal source for furt
215. perational processor When the Frequency Mask Trigger function is activated window function operation is executed to the input signal first To accelerate the operation data are divided into two groups the odd frame data and the even frame data With pipeline connected FFT processors real time FFT is applied to these groups of data After being converted into frequency domain the data are further converted into the power domain with a pipeline connected quadrature to polar coordinates converter After comparison with the reference data the trigger board outputs the trigger detect signal When the Power Trigger function is activated window function operation and FFT operation mentioned above are bypassed The data of the time domain are converted into the power domain and sent to Trigger Comparator RSA3303A amp RSA3308A Service Manual Theory of Operation A40 Memory Board Power Supply Circuit The A40 Memory board saves time domain data separated into I and Q signals by the A20 DDC board The A40 Memory board also interfaces between the data block and Windows system data output from the A20 DDC board is saved to the dual port SRAM and then transferred to SDRAM as a block of data The memory block of SDRAM is also connected to the PCI bus via a different dual port SRAM This allows the Windows system to refer to the contents copied to this dual port SRAM as the data on the PCI memory space The TRIG IN and OUT connectors lo
216. qualified personnel should perform service procedures Use Proper Power Cord Use only the power cord specified for this product and certified for the country of use Ground the Product This product is grounded through the grounding conductor of the power cord To avoid electric shock the grounding conductor must be connected to earth ground Before making connections to the input or output terminals of the product ensure that the product is properly grounded Observe All Terminal Ratings To avoid fire or shock hazard observe all ratings and markings on the product Consult the product manual for further ratings information before making connections to the product Do Not Operate Without Covers Do not operate this product with covers or panels removed Avoid Exposed Circuitry Do not touch exposed connections and components when power is present Do Not Operate With Suspected Failures If you suspect there is damage to this product have it inspected by qualified service personnel Do Not Operate in Wet Damp Conditions Do Not Operate in an Explosive Atmosphere Provide Proper Ventilation Refer to the manual s installation instructions for details on installing the product so it has proper ventilation Terms in this Manual These terms may appear in this manual WARNING Warning statements identify conditions or practices that could result in injury or loss of life CAUTION Caution statements identify conditions or practi
217. r the power meter and the analyzer Set the GPIB address as follows Power 13 fixed Signal generator 1 to 30 except 13 Initialize the analyzer m Press the SYSTEM key on the front panel Press the Reset All to Factory Defaults side key RSA3303A amp RSA3308A Service Manual 5 7 Adjustment Procedures 2 Modify the default settings a b NOTE Press CAL Service Password Input 270833 and then press ENTER using the numeric keypad Press the CAL side key Press MEASURE gt SG Flatness Press the Power Sensor side key and select the sensor number that you specified when storing calibration factors with the general purpose knob Press the Band side key to select the measurement frequency band m 230 Measures from 1 MHz to 3 GHz for RSA3303A M Low Measures from 1 MHz to 3 5 GHz for RSA3308A m High Measures from 3 5 GHz to 8 GHz for RSA3308A Press the SG side key to select the manufacturer of the generator for the GPIB command system HP or Anritsu The HP setting also supports Agilent and Rohde amp Shwartz products h Press the GPIB Address side key and set the address of the generator 3 Let the instruments warm up Allow a 20 minute warm up period before you go to the next step 4 Calibrate the power sensor a Modify the hookup Connect the power sensor input to the power reference output of the power meter see Figure 5 3 Power meter
218. re 2 37 Scale settings Completing the Complete the measurement with the following procedure Measurement Press the MEASURE key on the front panel 2 Press the Measurement Off side key The display returns to the spectrum view However the analysis mode is still in the Demod mode RSA3303A amp RSA3308A Service Manual 2 45 Operating Instructions Using Windows XP This analyzer operates under Windows XP You can switch to a Windows XP desktop screen or execute a Windows XP application program Connecting a Mouse anda Connect a USB mouse and a USB keyboard to the USB ports on the side panel Keyboard You can connect them to etther or both ports You can also connect the mouse to the USB port on the keyboard _ USB ports amp Front o Ja Figure 2 38 USB ports side panel 2 46 RSA3303A amp RSA3308A Service Manual Operating Instructions Displaying Windows XP Display the Windows XP desktop on screen of the analyzer with these steps Desktop 1 With the mouse move the pointer to the bottom of screen The task bar appears 2 Place the pointer on the icon indicating the analyzer model name RSA3303A or RSA3308A located on the task bar and click on it with the right button of the mouse A menu opens 100 EX Restore dBm Minimize Center 1 5 GF
219. re 6 36 6 37 Check the power supply voltages on the power supply module Are See Table 6 6 and Figure 6 36 6 37 the voltages OK Are the voltages Replace the A70 DC power board OK No Check the test point voltages on A70 see Table 6 7 and Figure 6 38 Are the voltages OK Remove short circuit on the loading side the two fans No on the left side working Replace the fan Yes Is the fan on the CPU board working Replace the fan Replace tne tan Yes Figure 6 32 Troubleshooting procedure 1 Power supply system 6 68 RSA3303A amp RSA3308A Service Manual Troubleshooting This procedure helps you determine whether the LCD display or the CPU module is bad Turn on the analyzer Does the initial screen appear correctly See Figure 2 4 on page 2 6 No Yes Does the analyzer respond correctly when the front panel keys are pressed No Yes Change the reference level AMPLITUDE Ref Level in one dB step by rotating the general purpose knob Can you No hear the relays the analyzer shut down correctly when the ON STANDBY switch is pressed Yes Display and CPU system is OK Connect an external display to the VGA output connector on the side panel the screen shown normally on the external display Did the BIOS setup screen appear when
220. reen Tektronix RSA 3308A 03 08 08 14 54 55 PAUSE VIEW DEFINE T Frequency 100 MHz Acquisition Length 256 ms Cancel Back Span 20 kHz Show Views Input Att 20 dB Show Views Singe Mult Select Single to show only the 100 Overview selected view with the size enlarged Content Waveform 20 Start 232 ms Scale 3 2 ms Menu Off Analog Demod AM Demod Figure 2 36 Single view display 2 44 RSA3303A amp RSA3308A Service Manual Operating Instructions 4 Change the scale a Press the SCALE key in the VIEW area b Press the Horizontal Scale side key and change the scale of the horizontal axis see Figure 2 37 Try several settings by turning the general purpose knob observe the changes in the display Press the Vertical Scale side key and change the vertical axis scale Try several settings by turning the knob observe the changes in the display Tektronix RSA 3308A AIV PAUSE VIEW SCALE Cancel Back Frequency 100 MHz Acquisition Length 256 ms Span 20 kHz Input Att 20 dB Auto Scale im Amplitude Horizontal Scal s F Horizontal Start s 232m Vertical Scale 200 20 Vertical Offset Vertical Scale 0 Full Scale default scaling Start 232 ms Scale 800 Lis Analog Demod AM Demod Horizontal Scale ms 8 Horizontal Scale Figu
221. rews securing the module to the main chassis Lift the module up Reinstallation Reverse step 3 to reinstall the RF4 module Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver b Locate the RF5 module in the locator diagram RF Modules Figure 6 3 page 6 13 Orient the analyzer Set the analyzer so the bottom is down on the work surface and its front is facing you Remove the RF5 module See Figure 6 15 Also see Figure 6 35 on page 6 75 for the cable interconnection a Unplug the following SMB cables on the RF5 module W207 W31 W30 W29 W208 W32 W41 and W40 b Remove the two screws securing the module to the main chassis Lift the module up Reinstallation Reverse step 3 to reinstall the RF5 module RSA3303A amp RSA3308A Service Manual Removal and nstallation Procedures Procedures for CPU Board and Disk Modules Read the Access Procedure on page 6 21 before proceedin The procedures presented 1 the following order CPUBoard 1 CPU board Hard disk drive Floppy disk drive A62 Front connection board Assemble equipment and locate module to be removed a You will need 2 Phillips screwdriver Items 1 and 3 b Locate the CPU board in the CPU board and disk modules diagram Figure 6 4 page 6 14 Orient the analyzer Set the analyzer so its bottom is down on the work surface and its front is facing you Remove the brackets See
222. so its bottom is down on the work surface and its front is facing you Remove the 20 DDC board See Figure 6 19 Lift up the the 20 board Reinstallation Reverse step 3 to reinstall the A20 board Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items 1 and 3 b Locate the A30 Trigger board in locator diagram Mother board and its daughter boards Figure 6 5 page 6 15 Do step 3 in the A70 A D Board procedure on page 6 36 to remove the board support bracket Orient the analyzer Set the analyzer so its bottom is down on the work surface and its front is facing you Remove the A30 Trigger board See Figure 6 19 Lift up the the A30 board Reinstallation Reverse step 3 to reinstall the A30 board Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items and 3 b Locate the A40 Memory board in locator diagram Mother board and its daughter boards Figure 6 5 page 6 15 Do step 3 in the A70 A D Board procedure on page 6 36 to remove the board support bracket Orient the analyzer Set the analyzer so its bottom is down on the work surface and its front is facing you RSA3303A amp RSA3308A Service Manual Removal and nstallation Procedures 3 Remove the A40 Memory board See Figure 6 19 Also see Figure 6 35 on page 6 75 for the cable interconnection a Unplug the SMB cable W46 TRIG OUT and W
223. sults of data acquired seamlessly can be displayed in various formats such as frequency versus amplitude time versus amplitude frequency phase AM FM PM demodulation and spectrogram containing three dimensional information of frequency time and amplitude phase Features m DC to 3 GHz RSA3303A 8 GHz RSA3308A measurement frequency range m 100 Hz to 3 GHz measurement span and 15 MHz vector span m Real time analysis for seamless capture of time varying RF signals m Spectrum analysis of power ACPR C N OB W EB W and spurious m Analog modulation analysis of AM PM FM ASK and FSK signals m Digital modulation analysis ranging from BPSK to 256QAM Option 21 m Time characteristic analysis including pulse measurements m CCDF analysis m AM AM and AM PM distortion analyses Option 21 m Time correlated simultaneous views m Spectrum display m Spectrogram display frequency versus time versus power m Time domain display IS 95 standard M Analog demodulation display time versus modulation factor phase or frequency m Digital demodulation display Option 21 constellation eye diagram symbol table or EVM m 3 4 inch TFT color display and sturdy cabinet RSA3303A amp RSA3308A Service Manual 1 1 Product Overview Application The RSA3303A and the RSA3308A can perform real time analysis for the following purposes m Signal quality analysis of analog and digital modulation m Understanding frequency and spectra
224. switch 2 5 Initial 65500 sane esiikbbee4E RAE eenias 2 6 RF OIINPUTCOBHOCIOF 225922339 w 2 6 Setting up The stand 2 7 Cable connection 2 2293 y ua GE EE NS RAE nes 2 12 Principal power switch rear panel 2 13 Power switch ON STANDBY 2 13 nial serech 2 14 Frequency span and amplitude settings 2 16 Menu items for numeric value input 2 17 Numeric value entry keypad 2 17 Center frequency of 100 MHz span of 15 MHz 2 18 Center frequency of 100 MHz span of 20 kHz 2 19 Setting amplitude 2 20 Menu items for numeric value input 2 21 Reference level of 10 dBm 2 21 Status indicator 2 22 Measurement with a single marker 2 24 Measurement with the delta marker 2 25 Searching for the peak 2 27 Comparing a new waveform with an averaged i fee 2 29 Comparison display with averaged waveform 2 30 Concurrent display of spectrum and spectrogram 2 31 Tall display of spectrum and spectrogram 2 32 Spectrogram view 2 33 RSA3303A amp RSA3308A Service Manual Table of Contents Figure 2 28 Figure 2
225. tall compress the flip stand and insert it into the flip stand feet 6 Remove the foot a Remove the cabinet refer to Cabinet on page 6 22 b Working from inside the cabinet push the two retainers to release the foot you wish to remove and lift it away from the outside of the cabinet c Remove as many of the feet as needed d reinstall feet reinsert the two retainers into their slots in the cabinet and snap into place 7 Reinstallation If any flip stand feet were removed reinstall as directed in step then refer to the Cabinet procedure on page 6 22 to reinstall the cabinet Reverse steps 3 and 5 reversing each step to reinstall the flip stand then the handle caps if removed then the handle RSA3303A amp RSA3308A Service Manual 6 25 Removal and Installation Procedures Push down to flex handle and flatten against cabinet then pull it out Handle Removal Flip Stand Removal Foot Removal L Figure 6 14 Cabinet modules removal RSA3303A amp RSA3308A Service Manual 6 26 Removal and nstallation Procedures Procedures for RF Modules Read the Access Procedure on page 6 21 before proceedin The procedures presented in the following order RF2 Module 1 RF2 module RF3 module RF4 module RFS module Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver It
226. ten in text format to the specified file g Check against limits Select the upper left view with the VIEW SELECT key Press the VIEW SCALE key Press the Vertical Scale side key and set the value to 1 dB Press the Vertical Stop side key and set the value to 0 5 dB Check that the maximum and the minimum values are within 0 5 dB NOTE If the maximum and or the minimum values beyond the limits perform the auto calibration referring to Auto Calibration on page 5 14 and then check the IF flatness again h Repeat substeps c to g for the RF3 band 8 Check the RF2 and flatness for RSA3308A a Press the side key Cancel Back RF Flatness PV b Set the GPIB address of the generator m Press the SG side key to select the manufacturer of the generator HP or Anritsu Press the GPIB Address side key and set the generator address c Press the Band side key to select the frequency band RF2 first d Press the Measurement side key A file selection box appears the default directory is My Documents e Enter a file name for example RF2Flatness pv using the keyboard If necessary change the directory f Click the Open button with the mouse The test starts The result is written in text format to the specified file RSA3303A amp RSA3308A Service Manual 4 17 Performance Tests h Check against limits Select the upper left view with the VIEW SELECT key m Press VI
227. tenance Procedures The following sections contain information and procedures related to mainte nance m Section 2 Operating Information covers instructions useful when operating the analyzer in order to troubleshoot it It also details the service strategy and lists options for obtaining maintenance service and for replacing failed modules Section 3 Theory of Operation contains a circuit description at the module or block level m Section 4 Performance Verification contains procedures that may be useful in isolating problems to modules by testing analyzer performance m Section 5 Adjustment Procedures addresses after repair adjustment and the interval between periodic adjustments Procedures for adjusting the analyzer are included in this section m Section 9 Diagrams contains a block diagram using individual modules as blocks and an interconnection diagram showing connections between modules m Section 10 Mechanical Parts List lists all field replaceable modules by part number RSA3303A amp RSA3308A Service Manual 6 1 Maintenance Preparation 6 2 A Preventing ESD Before servicing this product read the Safety Summary and Introduction at the front of the manual and the ESD information below CAUTION Static discharge can damage any semiconductor component in this analyzer When performing any service that requires internal access to the analyzer adhere to the following precautions to avoid
228. ter See Figure 4 7 b Set the counter controls PUMCUON PPP Frequency 1 Gale UME 25 2 Check the frequency Check that the frequency counter reads 10 MHz 1 2 Hz 3 Disconnect the hookup Disconnect the cable at REF OUT RSA3303A amp RSA3308A Service Manual 4 21 Performance Tests Absolute Amplitude Check that the absolute amplitude error is within the specified range for the Accuracy Test analyzer It uses a power meter and a power sensor to set the signal generator output accurately Equipment One signal generator Item 1 One power meter Item 6 One power sensor Item 7 One 50 N N coaxial cables Item 10 Prerequisites Refer to page 4 10 1 Set the power meter and sensor NOTE Store the power sensor correction factors in the power meter if you have not yet done so When you use the Agilent 437B power meter refer to Storing Cal Factors in the Power Meter on page 5 4 a Connect the power meter and the power sensor See Figure 4 8 below Power meter Power sensor Cm Sensor input Figure 4 8 Initial hookup for setting up the power meter and sensor b Warm up the power meter and sensor for more than 20 minutes Press ZERO on the power meter d Connect the RF input of the power sensor to the power reference output of the power meter See Figure 4 9 on page 4 23 Turn on POWER
229. ter and the analyzer e Setthe GPIB address of the power meter to 13 fixed 3 Store the calibration factors a If you use a floppy disk insert it to the disk drive on the analyzer b Press CAL Service Password c Input 270833 and then press ENTER using the numeric keypad d Press the CAL side key e Press MEASURE SG Flatness f Press the Read Cal Factor side key The file selection dialog box appears g Enter the file name and then press the Open button The calibration factors are stored in the power meter RSA3303A amp RSA3308A Service Manual 5 5 Adjustment Procedures 5 6 Making Flatness Correction Files The auto performance verification and calibration need the flatness floppy disks for the signal generators Item and 2 The following procedures measure the flatness correction data for the specified signal generator and saves the data to a floppy disk You must create or update the flatness correction file when one of these conditions is met When you calibrate the analyzer initially When you calibrate the signal generator When you change the signal generator When you change the N N cable When you change the RF attenuator When one year has elapsed from the last update of the file for the generator Equipment One signal generator Item 1 or 2 Required One power meter Item 5 One power sensor Item 6 One N N cable Item 8 Two GPIB cables Item 9 One 10 dB attenuator Item 11 One N a
230. ternal traceable signal sources to directly check warranted characteristics The required equipment list follows this introduction Minimum requirements _ Purpose Frequency range 10 kHz to 3 5 GHz Agilent 8648D Checking baseband and RF Variable amplitude from 70 dBm to flatness 113 dBm into 50 Accuracy lt 1 dB Function FM Frequency range 10 MHz to 8 GHz Agilent E8257D Checking RF flatness for Output level 30 dBm to 10 dBm Agilent 83712B RSA3308A only Accuracy lt 1 dB For RSA3303A you can use the signal generator with the frequency range of 10 kHz to 3 GHz for example Agilent 8648C RSA3303A amp RSA3308A Service Manual Performance Tests Table 4 3 Test equipment Cont number and description 3 Signal generator 4 Signal generator 5 Frequency counter 6 RF power meter 7 power sensor 8 Power combiner 9 cable 10 N N cable 11 N SMA cable Three required 12 GPIB cable Two required for RSA3308A 13 Terminator 14 RF attenuator 15 Mouse 16 Keyboard 17 SG flatness floppy disk Two required for RSA3308A Minimum requirements Purpose Output 2 10 dBm at 25 MHz Anritsu MG3642A Checking amplitude accuracy SSB phase noise 110 dBc Hz at 10 kHz offset Frequency 2GHz Output 2 10 dBm Rohde amp Schwarz Checking intermodulation Digital modulation QPSK SMIQOSB distortion Symbol rate 4 096 M s Frequency
231. ther spectrum analyzer measure the output at the connector the spectrum measured as follows Frequency 51 2 MHz 10 Hz Amplitude 16 dBm Yes No Replace RF5 module Re connect the W30 cable Unplug the coaxial cable W25 on the RF3 module See Figure 6 35 Using another spectrum analyzer measure the output at the connector the spectrum measured as follows Frequency 10 MHz Amplitude 20 dBm No Yes Replace A10 A D board A20 DDC board or A40 Memory board Unplug the coaxial cable W108 RSA3303A W121 RSA3308A of the step attenuator 1 on the bottom See Figure 6 36 6 37 Using another spectrum analyzer measure the output at the connector the spectrum measured as follows Frequency 10 MHz Amplitude 20 dBm No Yes Replace Step attenuator 2 Band relay or A100 Interconnection board Figure 6 34 Troubleshooting procedure 3 Signal path 6 70 To page 6 71 Re connect the W25 cable Unplug the coaxial cable W109 RSA3303A W105 RSA3308A of the step attenuator 2 on the bottom See Figure 6 36 6 37 Using another spectrum analyzer measure the output at the connector the spectrum measured as follows Frequency 10 MHz Amplitude 20 dBm No Yes Replace RF1 module Replace Step attenuator 1 Input relay or A100 Interconnection board RSA3303A amp RSA3308A Service Manual Tr
232. tics Description Frame time Real Time S A Demod and Time modes 20 MHz span Baseband 15 MHz span RF RF1 to 3 10 MHz span 5 MHz span 2 MHz span 1 MHz span 500 kHz span 200 kHz span 100 kHz span 50 kHz span 20 kHz span 10 kHz span 5 kHz span 2 kHz span 1 kHz span 500 Hz span 200 Hz span 100 Hz span 40 us 40 us 80 us 160 us 320 us 640 us 1 28 ms 3 2 ms 6 4 ms 12 8 ms 32 ms 64 ms 128 ms 320 ms 640 ms 1 28 s 3 25 6 45 Table 1 11 Digital demodulation Option 21 only Characteristics Demodulator Carrier type Modulation format Measurement filter Reference filter Filter parameter Maximum symbol rate Standard setup Description Continuous and Burst BPSK QPSK 4 shift DQPSK 8PSK 16QAM 64QAM 128QAM 256QAM GMSK GFSK ASK and FSK Root cosine Cosine Gauss 0 0001 to 1 0 0001 step 12 8 Msps PDC PHS NADC TETRA GSM CDPD and Bluetooth RSA3303A amp RSA3308A Service Manual Specifications Table 1 11 Digital demodulation Option 21 only Cont Characteristics Description Display format Vector diagram Symbol Locus display Frequency error measurement and Origin offset measurement Constellation diagram Eye diagram Error vector diagram Symbol table AM AM AM PM CCDF PDF Accuracy PDC 100 kHz span PHS 1 MHz span GSM 1 MHz span 64QAM 5 3 Msps 1 GHz carrier 15 MHz span Typical QPSK 3 84 Msps 2 GHz carrier 15 M
233. tion Characteristics Accuracy Typical AM demodulation PM demodulation FM demodulation Description EVM Typical Symbol rate 100 kHz 1 MHz 4 MHz 10 MHz 100 kHz 1 MHz 4 MHz 10 MHz 100 kHz 1 MHz 4 MHz 10 MHz 100 kHz 1 MHz 4 MHz 10 MHz EVM Typical Symbol rate Description 100 kHz 1 MHz 4 MHz 10 MHz 100 kHz 1 MHz 4 MHz 10 MHz 100 kHz 1 MHz 4 MHz 10 MHz 100 kHz 1 MHz 4 MHz 10 MHz 2 10 dBfs input at center 10 to 60 modulation depth 3 10 dBfs input at center 1 of span 10 dBfs input at center RSA3303A amp RSA3308A Service Manual Specifications Table 1 13 RBW Resolution Bandwidth Characteristics Description Filter shape Gaussian Rectangle Root Nyquist Setting range 1 Hz to 10 MHz Minimum Resolution Bandwidth S A mode gt 2 GHz span 100 kHz 1 to 1 99 GHz span 50 kHz 500 to 990 MHz span 20 kHz 200 to 490 MHz span 10 kHz 100 to 190 MHz span 10 kHz 50 to 90 MHz span 10 kHz 20 to 40 MHz span 10 kHz 10 MHz span 1 kHz 5 MHz span 1 kHz 2 MHz span 1 kHz 1 MHz span 1 kHz 500 kHz span 500 Hz 200 kHz span 200 Hz 100 kHz span 100 Hz 50 kHz span 50 Hz 20 kHz span 20 Hz 10 kHz span 10 Hz 5 kHz span 5 Hz 2 kHz span 2 Hz 1 kHz span 1Hz 500 Hz span 1Hz 200 Hz span 1Hz 100 Hz span 1Hz RSA3303A amp RSA3308A Service Manual Specifications Table 1 14 Trigger Characteristics Trigger mode Trigger event source Internal
234. tion within the operating limits described in these specifications m The analyzer must have had a warm up period of at least 20 minutes RSA3303A amp RSA3308A Service Manual 1 9 Specifications Electrical Characteristics Table 1 1 Frequency Characteristics Measurement frequency Frequency range Center frequency setting resolution Frequency marker readout accuracy V At specified frequency Residual FM Typical Span accuracy RBW filter bandwidth Reference frequency Aging per day Aging per year Temperature drift Total frequency error Reference output level External reference input Table 1 2 Spectrum purity Characteristics V Spectrum purity Frequency 1500 MHz Carrier offset 10 kHz Span 100 kHz Carrier offset 100 kHz Span 1 MHz Carrier offset 1 MHz Span 5 MHz Description Baseband DC to 20 MHz HF 15MHzto3 GHz RSA3303A RF1 15MHzto3 5 GHz RSA3308A RF2 3 5 GHz to 6 5 GHz RSA3308A RF3 5 GHz to 8 GHz RSA3308A 0 1 Hz Baseband RE x MF 0 001 x Span 0 2 Hz RF 1 to 3 RE x MF 0 001 x Span 2 Hz RE Reference frequency error MF Marker frequency Hz Baseband Frequency 10 MHz Span 1 MHz Marker 1 kHz Carrier frequency measurement 1 2 Hz RF RF1 Frequency 2 GHz Span 1 MHz Marker 1 2 kHz Carrier frequency measurement 210 Hz RF2 Frequency 5 GHz Span 1 MHz RSA3308A only Marker 1 5 kHz Carrier frequency measurement
235. tronix RSA 3308A 03 08 08 14 41 13 MEASURE Frequency 100 MHz RBW 200 Hz Cancel Back Span 20 kHz Trace 1 Normal Input Att 20 dB Trace 2 Off Channel Power 0 dBm ACPR C N 10 w dB Carrier Frequency d Spurious Center 100 MHz Span 20 kHz Carrier frequency measurement Frequency 99 999 997 MHz result measured accurately with counter function Measurement Off Spectrum Analyzer Carrier Frequency Figure 2 30 Carrier frequency measurement RSA3303A amp RSA3308A Service Manual 2 37 Operating Instructions Modulation Analysis Selecting Analysis Mode 2 38 This section describes how to analyze a modulated signal Settings are the same as those in the previous section center frequency at 100 MHz span of 20 kHz and amplitude of 0 dBm The analyzer functions are classified Into three functional groups selected using the Mode keys see Figure 2 31 Spectrum analysis MODE S A Performs general spectrum analysis All operations in the tutorial up to this point have been performed in this mode m Modulation analysis MODE DEMOD Performs analog and digital Option 21 only modulation analyses m Time analysis MODE TIME Performs time characteristic analysis including CCDF measurement MODE keys Selects the analysis mode MEASUREMENT DISPLAY MODE VIEW FREQUENCY RUN id sA MARKERS JU _ Figure 2 31 keys The measurement procedures for
236. uctions Tektronix RSA 3308A 03 08 08 14 49 08 TIMING Timing menu Cancel Back Acquisition Length s 64m Frequency 100 MHz Span 20 kHz Input Att 20 dB Two green vertical lines represent an analysis range 0 Acquisition dBm History lt Acquisition History 0 Specifies the number of the block to Spectrum Length be analyzed s 32m Spectrum Offset 100 s dBm Wil Yel 0 Start 64 ms Center 100 MHz Span 20 kHz Analysis Length s lt Analysis Length 100 The main view shows the waveform and u id measurement result for the analysis range i Tange i ym Analysis Offset d opecifies the start point of the PARRA AACE ERE aay range ve Step Size Start 40 ms Scale 3 2 ms Analysis Offset Analog Demod AM Demod Analysis Offset ms 24 62 5H Figure 2 33 Analysis range settings RSA3303A amp RSA3308A Service Manual 2 41 Operating Instructions Setting the Acquisition frame consists of 1024 data points and one block consists of several frames Length Data are acquired in block units in the Demod mode The number of frames in one block is referred to as block size Frame and block size are shown in Figure 2 34 1024 data points z Hu O O O O O 0O 0 0 0 0 0 0 0 0 0 0 0 0 O O
237. ule Safety Symbols and terms related to safety appear in the Safety Summary near the beginning of this manual Finding Other Information Other documentation for the RSA3303A and RSA3308A analyzers includes m The RSA3303A and RSA3308A User Manual contains a tutorial to quickly describe how to operate the analyzer It also includes an in depth discussion on how to more completely use the analyzer features The RSA3303A and RSA3308A Programmer Manual explains how to use the GPIB interface to remotely control the analyzer Xvi RSA3303A amp RSA3308A Service Manual __ i a j ii i i i OSOS Introduction This manual contains information needed to properly service the RSA3303A and RSA3308A Real Time Spectrum Analyzers as well as general Information critical to safe and effective servicing To prevent personal injury or damage to the analyzer consider the following before attempting service m The procedures in this manual should be performed only by a qualified service person m Read the General Safety Summary and the Service Safety Summary beginning on page 1 m Read Preparation for Use in section 2 Operating Information When using this manual for servicing be sure to follow all warnings cautions and notes Performance Check Interval Generally the performance check described in section 4 Performance Verifica tion should be done every 12 months In addition performance check is recommended after module repla
238. ulse Pulse phase Channel power OBW EBW Frequency deviation Minimum 20 samples Maximum 260 000 samples RSA3303A amp RSA3308A Service Manual Specifications Table 1 16 Display Characteristics View Number of views Number of display traces LCD Size Resolution Color Display detector Table 1 17 Marker trace and display line Characteristics Marker type Search function Trace content Display line Table 1 18 Controller and interface Characteristics Controller CPU DRAM OS System bus Storage medium Hard disk Floppy disk Description 1 2 3 or 4 2 213 mm 8 4 in 800 x 600 pixels Maximum 256 colors Positive peak Negative peak and Positive Negative peak Description Normal Reference and Band power Peak right Peak left Maximum Larger peak and Smaller peak Active Average Max Hold Min Hold View and Off Horizontal line 1 and 2 Vertical line 1 and 2 Description Intel Pentium IIl 850 MHz 256 Mbyte DIMM Windows XP PCI ISA gt 20 Gbyte 2 5 inch IDE 1 44 Mbyte 3 5 inch RSA3303A amp RSA3308A Service Manual 1 21 Specifications Table 1 18 Controller and interface Cont Characteristics Interface Printer port GPIB LAN Mouse Keyboard Monitor out Table 1 19 Power requirements Characteristics Rating voltage Voltage range Line frequency Mains Fuse Data Heat dissipation Maximum power Maximum line current Surge current Table 1 20 Power conne
239. ure especially under high humidity conditions CAUTION Avoid the use of chemical cleaning agents which might damage the plastics used in this analyzer Use only deionized water when cleaning the menu buttons or front panel buttons Use a 75 isopropyl alcohol solution as a cleaner and rinse with deionized water Before using any other type of cleaner consult your Tektronix Service Center or representative RSA3303A amp RSA3308A Service Manual Maintenance Inspection Exterior Inspect the outside of the analyzer for damage wear and missing parts using Table 6 2 as a guide Analyzers that appear to have been dropped or otherwise abused should be checked thoroughly to verify correct operation and performance Immediately repair defects that could cause personal injury or lead to further damage to the analyzer Table 6 2 External inspection check list Cabinet front panel Cracks scratches deformations Repair or replace defective and cover damaged hardware or gaskets module Front panel knobs Missing damaged or loose Repair or replace missing or knobs defective knobs Connectors Broken shells cracked insulation Repair or replace defective and deformed contacts Dirt in modules Clear or wash out dirt connectors Carrying handle bail Correct operation Repair or replace defective cabinet feet module Accessories Missing items or parts of items Repair or replace damaged or bent pins broken or frayed
240. wing procedure 0 dBm Ref Level setting 1068 100 dBm Figure 2 16 Setting amplitude 1 Press the Amplitude key on the front panel MEASUREMENT FREQUENCY CHANNEL RUN STOP RBW FFT TIMING ud ca AMPLITUDE key mii AMPLITUDE MEASURE SETUP The Amplitude menu is displayed on the right side of the screen Notice that the Ref Level item is available for entering amplitude see Figure 2 17 2 20 RSA3303A amp RSA3308A Service Manual Operating Instructions Figure 2 17 Menu items for numeric value input Ref Level dBm v XXX Numeric value input field lt T ndicates that the general purpose knob is available 2 Observe the changes in the waveform as you turn the general purpose knob m As you turn the knob to the right the amplitude increases and waveform shifts to a relatively lower position m As you turn the knob to the left the amplitude decreases and waveform shifts to a relatively higher position In Figure 2 18 the amplitude is set to 10 dBm When the amplitude is set to 0 dBm or higher a blue standard line is displayed indicating 0 dBm 3 Setthe Ref Level back to 0 dBm after confirming the amplitude operation Tektronix RSA 3308A 03 08 08 14 14 58 Frequency 100 MHz RBW 200 Hz Span

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RSA3303A & RSA3308A Service Manual