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RSA3408A Service Manual

1. Rear Power T switch Ine W80 filter Z CNI CN53 F J902 W CN51 83 J900 W91 Power supply 1 W92 W93 iid CN61 CN di J901 CN81 J100 W95 Ly W81 10 CN53 EAS ggto Power supply 3 70 lt soto LA J130 Power supply 2 lt 71 AC power PP CNet CN2 W84 J911 J920 CN81 U we 7 W123 a 3 W114A TUBE Band AS 0 HF3 relay W124 A100 Cal generator W121 9 J212 W115 J210 G 5 J400 J410 J600 Va m J200 To RF3 Bandpass x M u r i W106 filter YTF W114 F W119 e J Step attenuator To RF4 PF W13 2 Input p C 20 relay W120 W101 RF input Figure 6 38 Bottom view the instrument for cable interconnection 6 76 RSA3408A Service Manual Troubleshooting RSA3408A Service Manual Table 6 6
2. Rear IF TRIG TRIG Q Q l REF REF OUT IN OUT IN IN IN IN IN OUT GPIB WEE W560 m waa W43 we W620 x W621 A70 DC power To fans N W46 A40 gt j DIFP W45 J A10 gt W610 e C ND OSs W611 W360 B RF6 SEE O W502 W32 RF5 Q e f 5 RF4 gt S y E To J400 on A100 W27 AN W13 RF3 gt W307 5 To band relay x W124 W23 W201 9 O W106 Wu To bandpass filter RF gt N if O d n wee W21 WY VDD EN 62 HDD Front W W70 connection FDD Fan CPU gt 77 J700 J810 J60 J710 A61 W55 ff N LCD inverter J W56 Power switch LCD CN2 CN1 _ W54 W53 N TM J140 J120 60 J100 ide Front key Preamplifier power Figure 6 37 Top view of the instrument for cable interconnection RSA3408A Service Manual 6 75 Troubleshooting
3. RSA3408A 2 Signal generator C30 6000 Frequency counter GPIB cable o0 poga C o Reference Reference 10 dB attenuator output rear input rear 50 Q BNC coaxial cable 50 Q N N coaxial cable a Power off the RSA3408A analyzer and the signal generator b Connect the analyzer and the generator with GPIB cable c Connect the analyzer INPUT through a 10 dB attenuator followed by a 50 Q N N coaxial cable to the generator output d Power on the analyzer and the generator e Set the GPIB address of the generator ranging from to 30 f Connect the reference output of the frequency counter through a 50 Q BNC coaxial cable to the reference input of the signal generator RSA3408A Service Manual 5 17 Adjustment Procedures Enter the calibration menu a Press Service Password in the CAL menu b Enter 270833 and then press ENTER using the numeric keypad c Press the CAL side key d Set the GPIB address of the generator Press the Config side key Press the SG Type side key to select the manufacturer of the generator for the GPIB command system HP or Anritsu Press the SG Address side key and set the generator address Press the Cancel Back side key Perform the 10 MHz reference calibration Press the 10MHz Reference side key
4. f E GPIB cable ee tes E 0 ne O NI D mum d Y i C i4 CH1 to 50 Q terminators to l INPUT 30 62 DNE l and Q INPUTS coaxial cables Power off the RSA3408A analyzer and the waveform generator Connect the analyzer and the generator with a GPIB cable Connect CH1 and CH2 of the generator through 50 Q BNC coaxial cables to I INPUT and Q INPUT on the rear panel of the analyzer respectively Connect 50 Q terminators to I INPUT and Q INPUT on the rear panel of the analyzer Power on the analyzer and the generator Set the GPIB address of the generator ranging from 1 to 30 2 Enter the calibration menu a b C RSA3408A Service Manual Press Service Password in the CAL menu Enter 270833 and then press ENTER using the numeric keypad Press the CAL side key 5 25 Adjustment Procedures d Set the GPIB address of the generator m Press the Config side key Press the AWG Address side key and set the generator address m Press the Cancel Back side key 3 Perform the IQ gain calibration in all bands a Press the Target Files side key to select All b Press the IQ Gain side key to perform the IQ gain calibration NOTE You can select the calibration items and bands as described in Service Cal Menu on page 5 14 4 Disconn
5. PE 10 dB attenuator 50 N N coaxial cable Power off the analyzer and the signal generators Connect the analyzer and the generators with GPIB cables Connect the analyzer INPUT through a 10 dB attenuator followed by a 50 Q N N coaxial cable to the generator Item 1 output Power on the analyzer and the generators Set the GPIB address of the generators ranging from 1 to 30 Assign a unique address to each instrument Insert the SG flatness floppy disk Item 16 for the generator Item 1 to the floppy disk drive of the analyzer 2 Perform the self calibration Press CAL Calibrate All 3 Enter the PV menu a Press Service Password in the CAL menu Input 270833 and then press ENTER using the numeric keypad Press the PV side key Set the GPIB address of the generator m Press the Config side key m Press the SG Type side key to select the manufacturer of the generator Item 1 for the GPIB command system HP or Anritsu m Press the SG Address side key and set the generator address Press the Cancel Back top side key 4 17 Performance Tests Perform the tests in the baseband RF 1 band Press the BB RF1 side key to perform the tests Check the test results Check the pass fail results displayed on the lower left of the screen see Figure 4 7 on page 4 16 I
6. J400 410 To J200 on A100 W122 A100 Cal generator board lt Attenuator plate Figure 6 26 RF1 modules removal 1 6 52 RSA3408A Service Manual Removal and Installation Procedures Input Relay Band Relay and Bandpass Filter YTF RSA3408A Service Manual Remove the step attenuator f Unplug the cable at J200 on the A100 Cal generator board if not yet Using 6 inch wrench disconnect the SMA cable W121 from the step attenuator Remove the four screws securing the attenuator plate to the main chassis Using a 6 inch wrench disconnect SMA cable W120 from the step attenuator Lift up the step attenuator with the plate Remove the two screws securing the step attenuator to the plate Reinstallation Reverse step 3 to reinstall the step attenuator Assemble equipment and locate module to be removed a You will need a screwdriver with Phillips 1 2 and No 2 Pozidriv tips Items 1 2 3 and 4 a SMA torque driver with a long type bit Items 6 and 7 and a inch wrench Item 13 Locate the modules in the locator diagram Bottom modules RF 1 Figure 6 8 on 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 Cal
7. Signal generator 50 N N coaxial cable Figure 5 9 Test hookup c Initialize the analyzer m Press the SYSTEM key on the front panel Press the Reset All to Factory Defaults side key d Modify the default settings m 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 the test equipment Disconnect the cable at INPUT 5 28 RSA3408A Service Manual Adjustment Procedures Reconfiguration of the When replacing the unit do the following procedure YTF Unit Equipment One signal generator Item 1 Required qui One 50 Q N N coaxial cable Item 10 1 Modify the YTF unit DAC setting a Press the CAL key on the front panel b Press the side key Service Password Enter 270833 and then press ENTER using the numeric keypad d Press the side key DEBUG Tune DAC e Press the Gain side key and enter the gain of the YTF unit f Press the Offset side key and enter the offset of the YTF unit 2 Prepare for the adjustment a Set the signal generator controls PREQUCNCY sa u ss sss dues s 6500 MHz Amplitude 10 dBm RF Output On b
8. Hard drive cartridge removal Hard disk drive removal Outside HDD bracket assembly removal Disk unit removal Daughter boards removal Mother board removal Power supply 1 and 2 removal Power supply modules removal RF1 modules removal 1 RF1 modules removal 2 Front panel assembly removal Front panel modules removal LCD display removal Fan and side panel removal Board guide bracket removal Rear panel removal Troubleshooting procedure 1 Power supply system Troubleshooting procedure 2 Display and CPU Troubleshooting procedure 3 Signal path Top view of the instrument for cable interconnection Bottom view the instrument for cable interconnection 70 DC power supply board Figure 9 1 Block diagram Figure 9 2 Interconnect diagram Figure 10 1 Figure 10 2 Figure 10 3 Figure 10 4 Figure 10 5 Figure 10 6 External modules Front panel assembly 1 Front panel
9. Frequency 100 MHz RBW 100 kHz Cancel Back Span 36 MHz Trace 1 Normal Signal Input Port Input Att 15 dB Trace 2 Off 100 MHz Status indicator Cal100M 21 13 dBm 71 13 dBm Hz2 7 Reference Source dBm Int Ext Marker readout 31 Marker 10 aH Center 100 MHz Span 36 MHz Spectrum Analyzer Measurement Off Figure 4 1 Spectrum of the calibration signal 100 MHz 20 dBm S 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 100 MHz and the amplitude should be approximately 20 dBm c Press MARKER SETUP Markers 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 Confirm that the span is 36 MHz and the RBW is 100 kHz in the setup display on the upper part of the screen see Figure 4 2 RSA3408A Service Manual 4 5 Brief Procedures Span RBW Span setting m RSA 3408A 2004 12 07 14 10 0 INPUT CAL K T _____ _ _ _ Frearienec 100 MHz WBW 80 kHz Setup display Trace x mal Trace 2 Off input ALl 12 Marker 100 MHz 21 18 dBm 70 21 dBm Hz 0 dBm Start Freq Hz Figure
10. RSA3408A Service Manual Removal and Installation 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 Windows online 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 B 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 on 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 steps 4 and 5 to reinstall the hard disk driv
11. Is the spectrum displayed with correct amplitude Yes the spectrum displayed with correct amplitude at the reference level of 20 15 10 5 0 5 and 10 dBm Yes Replace the A D board Figure 6 36 Troubleshooting procedure 3 Signal path Cont RSA3408A Service Manual RF1 band check Modify the signal generator controls as follows Output Off Modify the analyzer controls as follows Center frequency 100 MHz Span 1 MHz Reference level 0 dBm Perform the center offset calibration Refer to page 5 12 Replace Step attenuator or A100 Cal generator To page 6 72 Is the level of spurious signal at center screen 95 dBm or less Replace Yes A40 DIFP board Modify the signal generator controls as follows Frequency 100 MHz Level 10 dBm No Is the spectrum displayed with correct frequency and amplitude Yes No Unplug the coaxial cable W32 on the RF5 module See Figure 6 37 Using another spectrum analyzer measure the output at the connector the spectrum measured as follows Frequency 10 MHz 10 Hz Amplitude 2 dBm Yes No Replace RF6 module 6 71 Troubleshooting From page 6 71 To page 6 73 Reconnect the W32 cable Unplug the coaxial cable W610 on the RF6 module See Figure 6 37 Unplug the coaxial cable W250 on the RF2 module See Figure 6 3
12. Digital IQ output connector pin assignment Spectrum of the calibration signal 100 MHz 20 dBm Setup CISDIAY aua ea ee Reference level setting and A D overflow indicator Spectrogram display DIAGNOSUIC SCECCD a eue cerned rts eTa EA RADAR Auto test initial screen Performance test result display Hookup for calibrating the power sensor Hookup for setting the signal generator output Figure 4 10 Hookup for checking the absolute amplitude accuracy Figure 5 1 Figure 5 2 Figure 5 3 Figure 5 4 Figure 5 5 Figure 5 6 Figure 5 7 Figure 5 8 Figure 5 9 Hookup for storing the cal factors in the power meter Initial test hookup Hookup for calibrating the power sensor mtu stipa SOROR HE pupuna ua Calibration menu Cener olei onda canto tween EE RE HE S DC OD l ciscesenetovesweenussenussueaneet ae ae es Auto calibration initial screen Test hookup auia doe vor ac doe 9 8 98 a EEEE ra pt gor cR en Figure 5 10 Test hookup 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 Analyzer orientation
13. Power meter O Output Power sensor Figure 4 9 Hookup for setting the signal generator output b Set the signal generator controls Frequency 25 MHz Level 2252229 cea sees as 10 dBm c 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 RSA3408A Service Manual 4 29 Performance Tests 3 Prepare for the test a Hook up the instruments Connect the signal generator output through a 50 2 N N coaxial cable to the RSA3408A INPUT See Figure 4 10 Signal generator RSA3408A OO 1 ooooo J Output 50 Q N N coaxial cable Figure 4 10 Hookup for checking the absolute amplitude accuracy b Initialize the analyzer m Press the SYSTEM key on the front panel m Press the Reset All to Factory Defaults side key c Modify the default settings Press the FREQUENCY CHANNEL key on the front panel The Center Freq menu item is selected by default Set the frequency to 25 MHz using the numeric keypad Pre
14. coaxial cable RSA3408A Service Manual 5 19 Adjustment Procedures a Power off the RSA3408A analyzer and the signal generator b Connect the analyzer and the generator with GPIB cable c Connect the analyzer INPUT through a 10 dB attenuator followed by a 50 Q N N coaxial cable to the generator Item 3 output d Power on the analyzer and the generator e Set the GPIB address of the generator ranging from to 30 f Insert the SG flatness floppy disk Item 16 for the generator to the floppy disk drive of the analyzer 2 Enter the calibration menu a Press Service Password in the CAL menu b Enter 270833 and then press ENTER using the numeric keypad c Press the CAL side key d Set the GPIB address of the generator m Press the Config side key m Press the SG Type side key to select the manufacturer of the generator for the GPIB command system HP or Anritsu m Press the SG Address side key and set the generator address m Press the Cancel Back side key 3 Perform the all band calibration a Press the Target Files side key to select All b Press the Cal Select side key to select All c Press the All Band side key to run the calibration NOTE You can select the calibration items and bands as described in Service Cal Menu on page 5 14 4 Disconnect the test equipment a Disconnect the cable from the analyzer input b Turn off the analyzer and generators c Disconnect the GPIB cable from
15. External modules KE MOGUICS ssisroirsrisni res REEDED SS CPU board and disk modules Removable hard disk modules Option 06 Mother board and daughter boards Bottom modules Power supply Bottom modules RFI Front panel modules Figure 6 10 Chassis modules Figure 6 11 Guide to removal procedures 1 15 1 19 4 6 4 7 4 7 4 8 4 12 4 16 4 29 4 29 4 30 5 5 5 8 5 10 5 11 5 12 5 13 5 14 5 28 5 29 6 11 6 12 6 13 6 14 6 15 6 16 6 17 6 18 6 19 6 20 6 21 Table of Contents 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 26 Figure 6 27 Figure 6 28 Figure 6 29 Figure 6 30 Figure 6 31 Figure 6 32 Figure 6 33 Figure 6 34 Figure 6 35 system Figure 6 36 Figure 6 37 Figure 6 38 Figure 6 39 Line cord and cabinet removal Front cushion removal Cabinet modules removal RF modules removal CPU board removal Disk module removal
16. A40 DIFP board A70 DC power board Figure 6 22 Daughter boards removal RSA3408A Service Manual 6 43 Removal and Installation 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 daughter boards Figure 6 6 on page 6 16 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 41 Remove the rear panel refer to the procedure Rear Panel Modules on page 6 65 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 38 on page 6 76 for cable interconnection Orient the analyzer Set the analyzer so its bottom is 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 37 on page 6 75 for cable interconnection Lift up and remove the board 3 Reinstallation a b 6 44 Reverse step 2 to reinstall the A50 board Reinst
17. IE EU ees Breve os EE DENEN EN 4 10 5 00 4 acm qui EAE a ree PERDU V S nca bu acd S E Be Mg ss 4 10 REO FERT TE DET TT ETT TETTE TT Ee S s ee Be ee 4 12 Frequency oo roor Gee amas rere 4 21 Noise Sideband Checks EE odd Bebe bs ox 4 25 Amplimde CODES am quid NER E DEN eter Ob rae Be pra ox 4 28 SPULIOUS Response Checks 25 ves D rg eR mr PERS ond Serna eee ie 4 40 S nasce eue PE GE EE S IHRER ERR ERE tee S oe Be oe eee 4 52 i Table of Contents Adjustment Procedures Requirements TOP Performante 35520233 3 93 93 94 59 X 9 SS EER dae 5 1 Eguipment TS COUCH osos u u u sus beaks ot AE bee EUER RUE OCC puma ae wau ee 5 2 Ji j i io uio ow 9 9d E ae bee TEUER S RUE OCC P RUP ee 5 3 Self Calibration Ss JU eee BU VUE i ee 5 10 Auto 5 14 Reconfiguration of KE Modules sasa uwa ua 5 27 Maintenance Related Maintenance Procedures 6 1 Preparato 6 2 Inspection and Cleaning 6 4 Removal and Installation Procedures 6 7 Prepalatioi M 6 7 Access Procedure lecce eee
18. Performance Verification PV Measurement Off BB RF1 RF2 RF3 RF1 RF2 RF3 Figure 4 6 Auto test initial screen The PV menu has the following controls PV Select Selects the test items as shown in Table 4 4 RSA3408A Service Manual Performance Tests RSA3408A Service Manual Table 4 4 Test item selection PV Select Test item All Spurious Other Baseband flatness 4 IF flatness _ _ RF flatness so J Spurious NOTE It takes several hours to perform the spurious test All Band Performs the tests in all bands Baseband RF1 RF2 and RF3 Measurement bandwidth 1 MHz to 8 GHz BB Performs the tests in the baseband Measurement bandwidth 1 MHz to 40 MHz RF1 Performs the tests in the band Measurement bandwidth 40 MHz to 3 5 GHz BB RF1 Performs the tests in the baseband and band Measurement bandwidth 1 MHz to 3 5 GHz RF2 RF3 Performs the tests in the RF2 and RF3 band Measurement bandwidth 3 5 GHz to 8 GHz RF1 RF2 RF3 Performs the tests in the RF2 and band Measurement bandwidth 40 MHz to 8 GHz Config Sets the signal generator manufacturer and the GPIB address SG Type Selects the manufacturer of the generator for the GPIB command system HP or Anritsu NOTE The HP setting also supports Agilent and Rohde amp Schwarz products GPIB Address Sets the GPIB address of the generator 4 13 Performance Tests STOP Select e
19. b Perform the C N measurement m Select MEASURE C N MEAS SETUP m Press the Offset Frequency side key and set the value to 100 kHz using the general purpose knob m Press the Carrier Bandwidth side key and set the value to 50 kHz using the general purpose knob m Press the Noise Bandwidth side key and set the value to 10 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 112 dBc Hz or more 4 Check phase noise for a span of 5 MHz a Modify the analyzer controls W Press the SPAN key on the front panel The Span menu item is selected by default Set the span to 5 MHz using the general purpose knob or the numeric keypad b Perform the C N measurement m Select MEASURE C N MEAS SETUP m Press the Offset Frequency side key and set the value to 1 MHz using the general purpose knob m Press the Carrier Bandwidth side key and set the value to 300 kHz using the general purpose knob m Press the Noise Bandwidth side key and set the value to 100 kHz using the general purpose knob Check against limits Read the phase noise C No at the bottom of the screen Confirm the value is 132 dB Hz or more 5 Disconnect the test equipment Disconnect the cable at the analyzer input RSA3408A Service Manual 4 27 Performance Tests Amplitude Checks These procedures check the amplitude related characteristics and a
20. REF OUT Frequency counter CJ 2 CH1 input 50 Q terminator 50 BNC coaxial cable b Set the counter controls PONCHON Frequency 1 Gate time 2s 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 4 24 RSA3408A Service Manual Performance Tests Noise Sideband Checks These procedures check the noise sideband related characteristics and are listed as checked in Chapter 2 Specifications Table 1 2 on page 1 3 Check Noise Sideband Equipment One signal generator Item 4 Required qu One 50 N N coaxial cable Item 11 Prerequisites Refer to page 4 10 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 m Press the AMPLITUDE key on the front panel m Press the RF Atten Mixer side key to select Mixer m The Mixer Level menu item is selected by default Set the level to 10 dBm m Press TRACE AVG Trace 1 Average m Press the Number Of Averages side key and set the value to 50 using the general purpose knob c Set the generator controls Frequency 1000 MHz Amplitude 0 dBm RKF OUMU aoreet aoaaa aa On d Hook up the signal generator
21. SENSOR HP8485A SERIAL 3318A16046 REFCF 99 0 0 1e9 99 1 2e9 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 the network RSA3408A Service Manual Adjustment Procedures RSA3408A Service Manual 2 Install the hookup and preset the instrument controls a b Turn off the power meter and the analyzer Connect the GPIB cables on the power meter and the analyzer rear panel Connect a mouse and a keyboard to the analyzer Turn on the power meter and the analyzer Set the GPIB address of the power meter to 13 fixed RSA3408A sen JO C9C9COC E CO JO C C OC C CIO 20000 Power meter 050000 5000 GPIB cable OOOO00 uaes A c O E Figure 5 1 Hookup for storing the cal factors in the power meter 3 Store the calibration factors a b If you use a floppy disk insert it to the disk drive on the analyzer Press CAL Service Password Enter 270833 and then press ENTER using the numeric keypad Press the CAL side key Press MEASURE gt SG Flatness Press the Read Cal Factor side key Th
22. gt Lf 27 27 0 LL gt Figure 6 8 Bottom modules RF1 6 18 Removal and Installation Procedures lt Front sub panel Inverter FF input connector Preamp power A60 Front key board connector Front panel keys f fi Front bezel k p p dA 4 Rotary encoder Front panel A61 Front bracket Power switch IP board LCD filter T TTT IRADA lt ANY wwww BELLU SN WOR CEEE GEGE DORR WEEE CLUE eM YD VNNONNO ARDY VDD ve gt General purpose knob Figure 6 9 Front panel modules RSA3408A Service Manual 6 19 Removal and Installation Procedures Board guide bracket Rear panel SMB BNC PC board guide connector bracket Stopper bracket Main chassis Side panel Shield bracket Figure 6 10 Chassis modules 6 20 RSA3408A Service Manual Removal a
23. uk x o Eom beens babar Ro xiil Manual CONVENTIONS XiV Related Documentation XiV Introduction a a o eee eet XV Performance Check Interval _ _ XV PY SECIS d rec ee bus oe gua A ho ene ee XV Performance Conditions 1 1 Electrical Characteristics RR RII 2 Physical Characteristics icone Bone bo ere aer we Rea a e Re 1 16 Environmental Characteristics 1 16 Digital IQ Output Connector Pin Assignment Option 05 Only 1 19 RIP Tipi Tr 3 1 Down Ju u l u reitt ah ek a ee wo kapa a 3 1 Digital Signal PPOCOSSIB6 sasa a oak edo ob 3 3 Jos SUDDLY 2 6 suysya er Oa E de dd ETE 3 4 External Interface gE Eh A EERE an 3 5 Performance Verification RSA3408A Service Manual Performance Verification Procedures 4 1 C OHM DION Che be eee eben 4 2 Brief Procedures 5 5 55 4 3 F nc onal TeSPS U u u 4 64 coos ees AERES 4 4 WACO SCS U oa ETT E pea ee T TOT TETTE 4 8 Performance Tests 5 455555 4 9 PRCT C QUIS ICS
24. 8 Remove the disk unit See Figure 6 21 a Remove the board stopper bracket and the memory support bracket if not yet Refer to step 3 on page 6 31 b Remove the two screws securing the disk bracket to the shield bracket c Remove the two screws securing the disk bracket to the main chassis d Lift up the disk bracket containing the floppy disk drive 9 Remove the floppy disk drive See Figure 6 21 Refer to Floppy Disk Drive page 6 35 for the procedure 10 Remove the A62 Front connection board See Figure 6 21 Refer to A62 Front Connection Board on page 6 35 for the procedure 11 Reinstallation Reverse steps 4 through 10 to reinstall the removable hard drive RSA3408A Service Manual 6 39 Removal and Installation Procedures Stopper bracket Disk bracket A62 Front connection board Floppy disk drive Shield bracket C Figure 6 21 Disk unit removal 6 40 RSA3408A Service Manual Removal and Installation Procedures Procedures for Mother Board and Daughter Boards A10 A D Board A40 DIFP Board RSA3408A Service Manual Read the Access Procedure on page 6 21 before proceeding The procedures are presented in the following order A10 A D board A40 DIFP board A70 DC power board 50 Mother board Assemble equipment and locate module to be r
25. CPU board or Windows hangs up Power supply 3 CPU board A60 Front key board CPU board or Windows hangs up A40 DIFP board A10 A D board RF2 or RF3 module RF3 module Bandpass filter or A100 Cal generator board 6 79 Troubleshooting Required Adjustments After Replacing Modules When you change the following parts or modules readjustment and or recalibra tion is necessary For details refer to Adjustment Procedures RF3 Module m You must 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 RF3 module m You must calibrate IF flatness RF gain and flatness for RF1 2 and bands RF2 and 5 Modules m You must calibrate IF flatness RF gain and 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 Step Attenuator m You must calibrate baseband gain and flatness m You must calibrate RF gain and RF flatness for RF1 2 and 3 bands Bandpass Filter YTF m You must change the gain and offset values of YTF 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 IF flatness RF gain and flatness for RF2 and 3 bands A100 Cal Generator Board You must calibrate baseband gain and RF gain for
26. D 2 220000 2 Glib KO 2020200000 l d 3 Figure 10 1 External modules 10 5 RSA3408A Service Manual Replaceable Parts Replaceable parts list Fig amp index number 10 2 1 10 6 Tektronix part number 211 0871 XX 671 5851 XX 361 A179 XX 366 A046 XX 174 B995 XX 210 1039 XX 407 A739 XX 671 5850 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 1073 XX 174 B982 XX 174 B981 XX Serial No effective Serial No discont d Gty 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 WIRED 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
27. Frequency 1000 MHz Frequency 2000 MHz Frequency 6000 MHz Frequency 1000 MHz Typical RSA3408A Service Manual Description Noise sideband 105 dBc Hz 110 dBc Hz 110 dBc Hz 110 dBc Hz 112 dBc Hz 132 dBc Hz 138 dBc Hz 138 dBc Hz 138 dBc Hz 103 dBc Hz 109 dBc Hz 109 dBc Hz 109 dBc Hz 112 dBc Hz 132 dBc Hz 138 dBc Hz 138 dBc Hz 138 dBc Hz 97 dBc Hz 106 dBc Hz 106 dBc Hz 106 dBc Hz 111 dBc Hz 132 dBc Hz 137 dBc Hz 137 dBc Hz 137 dBc Hz 107 dBc Hz 112 dBc Hz 112 dBc Hz 112 dBc Hz 115 dBc Hz 135 dBc Hz 140 dBc Hz 140 dBc Hz 140 dBc Hz Offset 1 kHz 10 kHz 20 kHz 30 kHz 100 kHz 1 MHz 5 MHz 7 MHz 10 MHz 1 kHz 10 kHz 20 kHz 30 kHz 100 kHz 1 MHz 5 MHz 7 MHz 10 MHz 1 kHz 10 kHz 20 kHz 30 kHz 100 kHz 1 MHz 5 MHz 7 MHz 10 MHz 1 kHz 10 kHz 20 kHz 30 kHz 100 kHz 1 MHz 5 MHz 7 MHz 10 MHz 1 3 Specifications Table 1 2 Noise sideband Cont Characteristics Frequency 2000 MHz Typical Frequency 6000 MHz Typical Table 1 3 Input Characteristics Signal input Input connector Input impedance VSWR Typical Maximum input level Maximum DC voltage Maximum input power Input attenuator RF Baseband attenuator I Q attenuator Option 03 1 4 Description 105 dBc Hz 1 kHz 111 dBc Hz 10 kHz 111 dBc Hz 20 kHz 111 dBc Hz 30 kHz 115 dBc Hz 100 kHz 135 dBc Hz 1 MHz 140 dBc Hz 5 MHz 140 dBc H
28. IF flatness wide IQ calibration Q gain calibration Option 03 only Use the service Cal menu and the procedure described below to set parameters and perform the tests Selects the calibration items and bands Access this menu by CAL Service Password 270833 CAL see Figure 5 8 Tektronix RSA 3408A 4 25 2005 5 31 58 PM PAUSE MACRO SETUP Cancel Back Target Files All Absent Cal Select All Spurious Other All Band GPIB 1 Select with the IF Flatness Target Files side key Wide IQ n UE GPIB 19 All Absent New IQ Gain Gain W SPEI B123I GPIB 3 Gain N 123 123 BBFlat 10MHz Reference GPIB 1 IF Flat W ABCDEF ABCDEF IFFlatN ABCDEF ABCDEF Shows cal files RFi Flat ABCDE ABCDE Config RF2 Flat ABCDE ABCDE RF3 na ABCDE ABCDE Go to page 2 0107116 of 2 CAL Measurement Off Figure 5 8 Auto calibration initial screen The table on the screen shows cal files for each calibration item Table 5 2 summarizes the calibration items RSA3408A Service Manual Adjustment Procedures Table 5 2 Calibration items Calibration group Execution side key 10 MHz reference 10 MHzinternal reference output frequency si 10 MHz Reference All band All Band IF flatness wide IQ IF Flatness Wide IQ IQ gain Option 03 only GanW lQgin ai 1 Not shown in the calibration table on the screen The 10 MHz reference calibration constant is written in
29. Marker 160 us Marker 34 14875 ms 10 507 dBm 2 572 mV 10 u 100 dBm mV The process is E E 20 graphically displayed t di mV fa on the upper views 110 100 dBm mV Start 10 24 s Scale 1 024 s Start 34 14875 ms Scale 160 us RESUL deltal 56 in 48327171 TEMP SENSOR CHEd Fa Sen DATA MEMORY Figure 4 5 Diagnostic screen 4 8 RSA3408A Service Manual Performance Tests This section contains procedures for checking that the RSA3408A 8 GHz Real Time Spectrum Analyzer performs as warranted The procedures are arranged in five logical groupings Auto Tests m Frequency Checks m Noise Sideband Checks Amplitude Checks m Spurious Response Checks They check all the characteristics that are designated as checked in Chapter 2 Specification The characteristics that are checked appear with the symbol in the Characteristics column in Chapter 2 You can use the form at the end of this section as a test record Read Performance Verification Procedures that start on page 1 1 Also if you are not familiar with operating this analyzer read the RSA3408A User Manual before doing any of these procedures NOTE These procedures extend the confidence level provided by the brief procedures described on page 4 3 Perform the brief procedures first and then perform the following procedures if desired RSA3408A Service Manual 4 9 Performance Tests Prerequisites T
30. 1 100 Cal generator board Step attenuator Input relay band relay and bandpass filter Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items 1 and 3 b Locate the A100 Cal generator board in the locator diagram Bottom modules RF 1 Figure 6 8 on 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 Cal generator board See Figure 6 26 Also see Figure 6 38 for cable interconnection a Unplug the cables at J200 J210 J212 and J600 on the A100 board b Unplug the SMB cables at J400 and J410 on the A100 board c Remove the nine screws securing the A100 board to the main chassis Three screws secure the FET and resistors attached to the board d Lift the A100 board up away disconnecting it at J100 on its back from the mother board Reinstallation Reverse step 3 to reinstall the A100 board Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items 1 and 3 and a 6 inch wrench Item 13 b Locate the step attenuator in the locator diagram Bottom modules RF1 Figure 6 8 on 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 6 51 Removal and Installation Procedures A100 Cal generator board J100 back
31. Check the power supply voltages on the power supply module Are See Table 6 6 and Figure 6 38 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 39 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 Yes Figure 6 34 Troubleshooting procedure 1 Power supply system 6 68 RSA3408A 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 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 Then reboot the analyzer Did the BIOS setup screen appear when starting up the analyzer the screen shown normally on the external display N
32. 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 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 otraighten 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 RSA3408A Service Manual Removal and Installation Procedures Preparation A A RSA3408A Service Manual 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
33. GPIB command system HP or Anritsu b Press the GPIB Address side key and set the generator address 4 19 Performance Tests 4 Check the error log See the error log in the following place using the mouse and keyboard NOTE For accessing Windows XP on the analyzer refer to the RSA3408A User Manual m Directory C Program Files Tektronix wca200a log m File spurious RFxPV log RFx RFI RF2 or depending on the test frequency Below is an example of the spurious RF1PV log file Spurious PV RFl Begin 2005 04 28 16 34 03 1000MHz 67 5kHz 73 065dB 2000MHz 55 3kHz 76 142dB End 2005 04 28 17 02 05 Center frequency Difference in level between carrier at the center frequency and Spurious offset frequency spurious at the offset frequency from the center frequency 5 Set test frequency a Press the Band side key to select the band in which the error occurred For example if an error occurred at 1000 MHz select RF1 b Press the Start side key and set the frequency at which the error occurred For example if an error occurred at 1000 MHz enter 1000 c Press the Stop side key and set the same frequency as in Start in this example 1000 to perform the measurement at the error frequency 6 Perform the test Press the Measurement side key to run the test Check that the test passes on the right bottom of the screen 7 Repeat steps 5 and 6 for all the frequencies listed in the log file 4
34. Grasp the front bezel by its top edge pry it up and 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 RSA3408A Service Manual Removal and Installation Procedures A60 Front Key Board Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items 1 and 3 b Locate the A60 Front key board in the locator diagram Front panel modules Figure 6 9 on page 6 19 2 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 3 Remove the A60 Front key board See Figure 6 29 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 4 Reinstallation Reverse step 3 to reinstall the A60 board A61 Power Switch 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 A61 Power switch board in the locator diagram Front panel modules Figure 6 9 on page 6 19 2 Orient the front panel assembly Set the front panel assembly so its front is down on the work surface and its back is facing you
35. Normal supply voltages Power supply1 CN51 4 75 V 5 25 V Power supply2 CN51 5 25 V Power supply 3 CN2 5 25 V 6 77 Troubleshooting Test points from left to right Upper TP216 TP222 TP208 TP204 TP202 TP220 A70 DC power board Lower TP214 TP210 TP212 TP218 TP200 TP206 J302 J300 gt 0000000000000 Power indicator LEDs Figure 6 39 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 16 6 V TP204 9 V TP202 15 V TP220 6 6 V TP214 5 V TP210 6 6 V TP212 5 V TP218 15V TP200 20 V TP206 16 6 V Low limit High limit 13 14 V 13 46 V 6 93 V 6 27 V 6 27 V 46 93 V 48 55 V 19 45 V 114 25 V 4115 75 V 6 93 V 6 27 V 4 75 V 5 25 V 6 27 V 46 93 V 4 75 V 5 25 V 15 75 V 14 25 V 4 19 V 21 V 6 27 V 46 93 V 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 6 78 RSA3408A Service Manual Troubleshooting RSA3408A Service Manual Table 6 8 Symptoms and faulty modules Symptom other functions are assumed to be normal No trigger signal is output from the TRIG OUT connector on the rear panel Cannot triggered with an external trigger signal No referenc
36. Typical 65 dB DC to 40 MHz J Residual response Reference level 30 dBm RBW 100 kHz Baseband 1 to 40 MHz 93 dBm Span 20 MHz RF1 0 5 to 3 5 GHz 90 dBm Span 3 GHz RF2 3 5 to 6 5 GHz 85 dBm Span 3 GHz RF3 5 to 8 GHz 85 dBm Span 3 GHz Spurious response Span 10 MHz Reference level 0 dBm RBW 50 kHz Baseband 25 MHz 73 dBc Signal frequency 25 MHz Signal level 5 dBm RF1 2 GHz 73 dBc Signal frequency 2 GHz Signal level 5 dBm RF2 5 GHz 70 dBc Signal frequency 5 GHz Signal level 5 dBm RF3 7 GHz 70 dBc Signal frequency 7 GHz Signal level 5 dBm 1 6 RSA3408A Service Manual Specifications Table 1 6 Acquisition Characteristics Real time capture bandwidth A D converter Description Baseband 40 MHz RF 36 MHz IQ 40 MHz Option 03 only 14 bits 102 4 Msps Sampling rate Real Time S A Demod and Time modes 40 MHz span Baseband 40 MHz span IQ Option 03 36 MHz span RF 20 MHz span 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 Acquisition length Real Time S A Demod and Time modes Acquisition length setting resolution Acquisition memory size RSA3408A Service Manual 51 2 Msps 51 2 Msps 51 2 Msps 25 6 Msps 12 8 Msps 6 4 Msps 2 56 Msps 1 28 Msps 640 ksps 256 ksps 1
37. 4 2 Setup display c Using the general purpose knob change the span setting as listed in Table 4 1 and check that the RBW is displayed correctly Table 4 1 Span and RBW Span RBW 36 MHz 100 kHz 15 MHz 80 kHz 5 MHz 20 kHz 100 kHz 500 Hz 1 kHz 20 Hz d Using the numeric keypad set the span back to 36 MHz Press 3 6 MHz in that order on the keypad 7 Check the reference level a Press the AMPLITUDE key on the front panel b Make sure that the reference level is set to 0 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 c Use the general purpose knob to set the reference level to 30 dBm d 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 e Using the numeric keypad set the reference level back to 0 dBm Press 0 ENTER in that order on the keypad 4 6 RSA3408A Service Manual Brief Procedures A D overflow indicator Reference level setting Tektronix RSA3408A Q DOVERFLO INPUT CAL AMP _ITUDE ee Frequency 100 MHz RBW 100 kHz Canel Back Span 36 MHz Trace 1 Normal Ref Level Input Att 0 dB Trace 2 Off dBm Marker 100 MHz 26 65 dBm 76 65 dBm Hz Reference level gt Em Figure 4 3
38. 6 Get the level linearity Pfx x 1 to 6 as Pfx Pmx Pm0 Prx PrO 6 Level linearity test result Signal generator Reference Measured amplitude N N Level linearity 10 dBm 0 dBm 10 dBm 20 dBm 30 dBm 40 dBm 50 dBm s Pf1 Pm1 Pm0 Pr1 Pr0 P2 Pm2 Pf2 Pm0 Pr2 Pro Pm3 Pm0 Pr3 Pro Pf4 Pm4 Pm0 Pr4 Pro Pf5 Pm5 Pm0 Pr5 Pro Pi s Pm P 6 Pm6 Pm0 Pr Pro 9 Disconnect the test equipment Disconnect the cable at the analyzer input 4 39 Performance Tests Spurious Response Checks These procedures check the spurious related characteristics and are listed as checked in Chapter 2 Specifications Table 1 5 on page 1 6 Check 3 d Order Equipment Two signal generators Item 2 or 3 and Item 4 i i i Required Intermodulation Distortion qui One power combiner Item 9 Three 50 N SMA coaxial cables Item 12 Prerequisites Refer to page 4 10 1 Prepare for the test Connect each generator output through a 50 2 N SMA coaxial cable to a each power combiner input See the following figure RSA3408A 555566 Signal generator oss OO oOoooo p Output 5000 _ OOOOO K A Co a J A lt N SMA
39. 6 162 0927 XX 10 INSUL SLEEVING ELECTRICAL HEAT SHRINK 1 71D POLYOLEFIN BLACK CM 0 019WALL THICKNESS SAFETY CONTROLLED 7 162 0927 XX 2 5 INSUL SLEEVING ELECTRICAL HEAT SHRINK 1 71D POLYOLEFIN BLACK CM 0 019WALL THICKNESS SAFETY CONTROLLED 8 211 A151 XX 2 SCREW MACHINE M2 5X6MML PNH STLZN C CROSS REC W SMALL PLAIN amp SPLIT WSHR 9 129 1623 XX 2 SPACER POST 5 0MM L M2 6 THRU DELRIN 5MM HEX 10 671 6094 XX 1 CIRCUIT BD ASSY A64 HDD CONNECTION UPPER 389 3792 00 WIRED 11 211 A152 XX 2 SCREW MACHINE M2 5X8MM L STL PNH NI PL CROSS RESS W PLAIN amp SPLIT WASHER 10 18 RSA3408A Service Manual Replaceable Parts Figure 10 8 Disk modules Option 06 2 RSA3408A Service Manual 10 19 Replaceable Parts Replaceable parts list Fig amp index number 10 9 1 2 10 20 Tektronix part number 211 0871 XX 119 B128 XX 119 B127 XX 342 A169 XX 211 0871 XX 407 A702 XX 174 B997 XX 174 B999 XX 174 C001 XX 174 C002 XX 343 1644 XX 671 5854 XX 211 0871 XX 211 0871 XX 119 B058 XX 260 2740 XX 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 Gty 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
40. 6 5 GHz 1 0 dB 5 GHz to 8 GHz 0 7 dB 100 kHz to 40 MHz 1 5 dB 40 MHz to 3 5 GHz 2 0 dB 3 5 GHz to 6 5 GHz 2 0 dB 5 GHz to 8 GHz Baseband 0 3 dB at 25 MHz 10 dBm signal RF 0 5 dB at 100 MHz 20 dBm signal 0 dB attenuation 0 2 dB at 100 MHz 0 2 dB 0 to 50 dBfs 0 12 dB 0 to 50 dBfs Typical 1 5 Specifications Table 1 5 Spurious response Characteristics Description 1 dB compression input 2 dBm RF attenuation 0 dB 2 GHz 2nd harmonic distortion 65 dBc 10 MHz to 1400 MHz 30 dBm tone at input mixer 70 dBc 1400 MHz to 1750 MHz 3 9 order intermodulation distortion Reference level 5 dBm RF attenuation adjusted optimally Total signal power 7 dBm Center frequency 2 GHz 78 dBc 100 MHz to 3 GHz 75 dBc 3 GHz to 8 GHz 72 dBc Displayed average noise level 144 dBm Hz 100 Hz to 10 kHz 151 dBm Hz 10 kHz to 10 MHz 151 dBm Hz 10 MHz to 100 MHz 150 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 b GHz to 8 GHz Local feed through to input connecter 40 dBm local frequency 4 2 to 5 GHz Typical 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 Image Suppression Typical 19 IF 75 dB 40 MHz to 3 5 GHz 70 dB 3 5 GHz to 8 GHz and and 3 9 F 80 dB 40 MHz to 3 5 GHz 75 dB 3 5 GHz to 8 GHz Alias suppression
41. CN51 CN53 CN2 Power supply 1 Power supply 2 Power supply 3 CPU board A62 J22 Front connection board W70 W93 CPU fan A63 LCD display J130 J140 wes W77 Line wet jos 70 DC power board DVO converter filter switch DC DC Voltage Floppy disk A61 i Rotary converter regulator drive Power switch encoder board MA I Preamplifier GPIB drive Figure 9 2 Interconnect diagram RSA3408A Service Manual 9 5 RSA3408A Service Manual Mechanical Parts List i Ae Replaceable Parts This section contains a list of the replaceable modules for the RSA3408A 8 GHz Real Time Spectrum Analyzer 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 RSA3408A Service Manual 10 1 Replaceable P
42. Connect the generator output through 50 Q coaxial cable to the analyzer INPUT See the following figure RSA3408A Service Manual 4 25 Performance Tests RSA3408A Signal generator Output 50 N N coaxial cable 2 Check phase noise for a span of 50 kHz a Modify the analyzer controls m Press the SPAN key on the front panel m The Span menu item is selected by default Set the span to 50 kHz using the general purpose knob or the numeric keypad b Perform the C N measurement m Press MEASURE C N MEAS SETUP m Press the Offset Frequency side key and set the value to 10 kHz using the general purpose knob m Press the Carrier Bandwidth side key and set the value to 5 kHz using the general purpose knob m Press the Noise Bandwidth side key and set the value to 1 kHz using the general purpose knob Check against limits Read the phase noise C No at the bottom of the screen Confirm that the value is 110 dBc Hz or more 4 26 RSA3408A Service Manual Performance Tests 3 Check phase noise for a span of 500 kHz a Modify the analyzer controls m Press the SPAN key on the front panel m The Span menu item is selected by default Set the span to 500 kHz using the general purpose knob or the numeric keypad
43. GPIB address as follows Power 13 fixed Signal generator 1 to 30 except 13 g Initialize the analyzer Press SYSTEM gt Reset All to Factory Defaults RSA3408A Service Manual 5 7 Adjustment Procedures 2 Modify the default settings NOTE Press CAL Service Password Enter 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 Use the general purpose knob Press the Band side key to select the measurement frequency band Low Measures from 1 MHz to 3 5 GHz Baseband RF1 band m High Measures from 3 5 GHz to 8 GHz RF2 and bands 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 Shwarz products h Press the GPIB Address side key and set the address of the generator 3 Letthe 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 Power reference output Figure 5 3 Hookup for calibrating the power sensor
44. Parts List lists all field replaceable modules by part number 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 following ESD information 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 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 RSA3408A 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
45. Power supply 3 Line filter Principal power switch Procedures for RF1 Modules A100 Cal generator board Step attenuator Input relay Bandpass filter Band relay Procedures for Front Panel Modules Front panel assembly p 6 56 Rotary encoder p 6 57 Front bezel p 6 58 Menu buttons p 6 58 Front panel A60 Front key board A61 Power switch board Preamp power connector RF input connector LCD display Procedures for Chassis Modules Fan p 6 62 Side panel assembly p 6 62 Board guide bracket p 6 64 Rear panel modules p 6 65 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 Reinstallation 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 Remowve the cabinet See Figure 6 12 a Opbption 06 only Using a coin unscrew the door on the top side of the cabinet to remove it b Remove the one screw securing the rear foot over
46. Reference level setting and A D overflow indicator Auto Level 8 Check the spectrogram display a Press S A S A with Spectrogram Check that the spectrogram is displayed on the lower side of the screen see Figure 4 4 Marker 100 MHz 21 06 dBm 71 06 dBm Hz 0 dBm Center 100 MHz Span 36 MHz Spectrogram Figure 4 4 Spectrogram display b Press the RUN STOP key on the front panel to stop data acquisition Confirm that the trace display freezes and PAUSE 1s displayed in the status indicator at the top right of the screen RSA3408A 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 analyzer and allow a 20 minute warm up before doing this procedure 1 Press CAL Service Password Enter 270833 and then press the ENTER key on the numeric keypad Press the DIAG side key 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 or Fail
47. Remove the screws securing the left and right stopper brackets to the hard disk drive Remove the stopper brackets c Disconnect the A65 board from the hard disk drive NOTE When you reinstall the A65 board be aware that four pins for the drive address setting are not connected d Remove the two locating pins to the A65 HDD connection board Unscrew the nut with a 5 mm wrench while holding the pin with a plier Ce Support Dumper A65 lt Locating pin d HDD connection ee board Stopper bracket right 50 89 Za d Y a P ear ps address Connected to yy a pi the A65 board of E no connection connector O O O O Or 000000000 E O O O O O O O O O O O O QO e Pin 1 Figure 6 19 Hard disk drive removal 7 Remove the outside HDD bracket assembly See Figure 6 20 a Remove the two screws securing the outside HDD bracket assembly to the main chassis and the disk unit Lift up the bracket assembly b Remove the six screws securing the back bracket to the front bracket c Remove the two edgings from the top edge of the front bracket 6 38 RSA3408A Service Manual Removal and Installation Procedures Front bracket RPA Back bracket gt Edging x 0 63 mm L i 0 I ye aii 97 2 Edging n 57 mm L Figure 6 20 Outside HDD bracket assembly removal
48. TO A100 CA ASSY SP ELEC 5 26AWG 35CM L RIBBON W HLDR CIRCUIT BD ASSY A100 CAL GENERATOR 389 3633 00 WIRED ATTENUATOR MODULE PROGRAMMABLE STEP 4 STAGE 0 75DB 5DB STEP DC 8GHZ 50 OHM COIL 24V 0 2A P AT 7 8 75 A SCREW MACHINE M3X6MM L PNH STL MFZN C CROSS REC W FLAT amp LOCK WASHER PLATE ATT AL GROMMET PLASTIC NYLON BLACK RING 15MM ID CA ASSY RF 500HM SEMI RIGID W106 FINE ATT TO SW CABLE ASSY RF SEMI RIGID W124 SW TO A310 RSA3408A Service Manual Replaceable Parts 97 oo i n AUN Z 3 o LN m mE B 27 Af J Vel hs E VA YA L gt Nm IN jL a XA x LY Figure 10 10 Bottom modules RF1 10 23 RSA3408A Service Manual Replaceable Parts Replaceable parts list Fig amp index number 10 11 2 28 4 5 6 10 24 Tektronix part number 211 1028 XX 348 1761 XX 174 B994 XX 220 0194 XX 174 B974 XX 174 B980 XX 348 1762 XX 211 A151 XX 131 6607 XX 333 A445 XX 407 A679 XX 351 A169 XX 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 Gty 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
49. b Remove the two screws securing the inverter to the front sub panel Lift up and remove the LCD display Reinstallation Reverse steps 3 and 4 to reinstall the LCD display and interconnect cables lt Front sub panel To J710 on the Mother board o 0 2 CM p RF input connector 6 61 Removal and Installation Procedures Procedures for Chassis Modules 6 62 Fan Side Panel Assembly Read the Access Procedure on page 6 21 before proceeding The procedures are presented in the following order Fan Side panel assembly Board guide bracket Rear panel 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 on 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 front is facing you Remove the fan See Figure 6 31 a Unplug the fan s power cable at J300 and J302 on the A70 DC power board Refer to the A70 DC Power Board procedure on page 6 42 b Remove the two 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 need a 2 Phillips screwdriv
50. band Hard Disk Drive m Full calibration is necessary because the calibration factors are lost 6 80 RSA3408A Service Manual Options i Z h K 55588 Options and Accessories The options and accessories list for this instrument is available in the RSA3408A User Manual 071 1617 xx that shipped with your product Refer to the Options and Accessories section in Appendices of your user manual RSA3408A Service Manual 7 1 Options and Accessories 7 2 RSA3408A 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 RSA3408A Service Manual 8 1 Electrical Parts List 8 2 RSA3408A 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 RSA3408A Service Manual 9 1 Diagrams 9 2 RSA3408A Service Manual Trigger output IF Ref Ref Trigger output input output input RF4 module PPM 8 GHz down converter Wa RF3 module RF2 module RF5 module RF6 module A10 A40 A D board DIFP board Digital Digital Q output A50 GPIB controller PCI bridge Mother board Power su
51. by default 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 value is 142 dBm Hz or less RSA3408A Service Manual 4 45 Performance Tests Check Residual Response Equipment None Required Prerequisites Refer to page 4 10 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 RSA3408A d CD Isi OW OO ooo0o0 p OOOO 0000 J OI b Modify the default settings m Press the FREQUENCY CHANNEL key on the front panel The Center Freq menu item is selected by default Set the frequency to 20 MHz using the general purpose knob W Press the SPAN key on the front panel m The Span menu item is selected by default Set the span to 40 MHz using the general purpose knob m Press the AMPLITUDE key on the front panel The Ref Level menu item is selected by default Set the level to 30 dBm using the general purpose knob m Press the RBW FFT key on the front panel m Press the RBW FFT side key to select Man m The RBW menu item is selected by default Set the RBW to 100 kHz using the general purpose knob B Press
52. cable Signal generator Power Q Q combiner N SMA cable Output b Connect the power combiner output through a 50 N SMA coaxial cable to the analyzer INPUT 4 40 RSA3408A Service Manual Performance Tests c Set the signal generator Item 2 controls 24 Juss os RE asa 1999 85 MHz eee ee ee 92497292 0 dBm ALC BW Lise tne 100 Hz PIeCQueney vase gad ss du dea 2000 15 MHz FO l wecawin eee e daunted 0 dBm ALC BW 100 Hz e Initialize the analyzer m Press the SYSTEM key on the front panel Press the Reset All to Factory Defaults side key f Modify the default controls m Press FREQUENCY CHANNEL key on the front panel The Center Freq menu item is selected by default Set the frequency to 2 GHz using the numeric keypad Press the SPAN key on the front panel m The Span menu item is selected by default Set the span to 1 MHz using the general purpose knob Press the AMPLITUDE key on the front panel m The Ref Level menu item is selected by default Set the level to 5 dBm using the general purpose knob Press the RF Atten Mixer side key to select Rf Att m The RF Att menu item is selected by default Set the attenuation to 15 dB using the general purpose knob m Press the RBW FFT key on the front panel m Press the RBW FFT side key to select Man m Press the Extended Resolution side key
53. cable Unplug the coaxial cable W360 on the RF3 module See Figure 6 37 Using another spectrum analyzer measure the output at the connector the spectrum measured as follows Frequency 10 MHz Amplitude 20 dBm Yes Replace A10 A D board or A40 DIFP board Unplug the coaxial cable W121 of the step attenuator on the bottom See Figure 6 38 Using another spectrum analyzer measure the measure the output at the connector the spectrum measured as follows Frequency 102 4 MHz 10 Hz Amplitude 6 5 dBm Yes No Replace RF6 module output at the connector the spectrum measured as follows Frequency 10 MHz Amplitude 20 dBm No Yes Replace Band relay or A100 Cal generator Figure 6 36 Troubleshooting procedure 3 Signal path 6 70 No To page 6 71 Reconnect the W360 cable Unplug the coaxial cable W124 of the band relay on the bottom See Figure 6 38 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 Replace RF3 module Input relay or A100 Cal generator RSA3408A Service Manual Troubleshooting From page 6 70 Modify the signal generator controls as follows Frequency 10 MHz Level 30 dBm Change the reference level from 20 to 30 dBm in one dB step on the analyzer
54. description HDD UNIT 2 5 IDE 1 0 5 AND F W INSTALLED DUMPER SUPPORT PS 308 WASHER PLAIN 6 BRS NI PL WASHER FLAT 0 141IDX0 5ODX0 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 2CM LENGTH SCREW MACHINE M2 6X5MM L PNH STL ZN C CROSS REC W K PLAIN amp LOCK WASHER BRACKET STOPPER GASKET SIDE R AL GASKET ELEC SHIELD GASKET CONDUCTIVE FOAMSTRIP W ADHESIVE TAPE 7CM LENGTH 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 4MM W CONDUCTIVE ADHESIVE 8CM LENGTH GASKET SHIELD CONDUCTIVE URETHAN FOAM W ADHESIVE TAPE BACKSIDE 4CM LENGTH 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 CA 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 FON 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 RSA3408A Service Manual Replaceab
55. 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 Pollution Degree 3 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 Degree 4 Pollution that generates persistent conductivity through conductive dust rain or snow Typical outdoor locations Pollution Degree Pollution Degree 2 as defined in IEC61010 1 Note Rated for indoor use only Safety Certification Compliance Equipment Type Test and measuring oafety Class Class as defined in IEC61010 1 grounded product Operating Temperature Range 5 to 40 C 1 18 RSA3408A Service Manual Specifications Digital IQ Output Connector Pin Assignment Option 05 Only 25 50 26 Figure 1 2 Digital IQ output connector pin assignment Table 1 23 OUTPUT connector pin assignment Pin number Signal name Description 1 IQ ENABLE IQ output enable signal input Open IQ output disable Connect to GND IQ
56. 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 be obligated to furnish se
57. 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 TTL least sensitive 9 1 Voltage equivalent for levels voltage discharged from a 100 pF capacitor through resistance of 100 ohms OINI O5 Ol gt N 1 100 to 500 V 6 600 to 800 V 2 200 to 500 V 7 400 to 1000 V est 3 250V 8 900 V 4 500 V 9 1200 V 5 400 to 600 V RSA3408A Service Manual 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 adju
58. modules RSA3408A Service Manual 6 12 Removal and Installation Procedures RF2 module 22 lt RF3 module RF4 module O RF5 module e e RF6 module 6 13 Figure 6 3 RF modules RSA3408A Service Manual Removal and Installation Procedures Disk bracket Stopper bracket Hard disk drive Shield bracket Floppy disk drive Shield bracket Front connection board CPU board Figure 6 4 CPU board and disk modules RSA3408A Service Manual 6 14 Removal and Installation Procedures Hard disk cable assembly A65 HDD connection board Cable mount bracket Stopper bracket Socooo Q 2 9 a
59. output enable 26 GND Ground 2 Ground 3 output data bit 0 LVDS a 4 output data bit 1 LVDS 5 output data bit 2 LVDS x 6 output data bit 3 LVDS 7 GND Ground 32 GND 8 output data bit 4 LVDS 9 output data bit 5 LVDS I RSA3408A Service Manual 1 19 Specifications Table 1 23 OUTPUT connector pin assignment Cont Pin number Description 10 output data bit 6 LVDS T 11 output data bit 7 LVDS 12 Ground 7 13 output data bit 8 LVDS T 14 output data bit 9 LVDS s 15 output data bit 10 LVDS T 16 output data bit 11 LVDS 17 Ground 18 output data bit 12 LVDS 19 output data bit 13 LVDS 20 output data bit 14 LVDS 21 output data bit 15 LVDS T 22 Ground 48 GND 24 Not used 25 IQ output clock LVDS 1 20 RSA3408A Service Manual Specifications Table 1 24 Q OUTPUT connector pin assignment Pin number Signal name Description 1 IQ ENABLE IQ output enable signal input Open IQ output disable Connect to GND IQ output enable 14 EXT Q9 Q output data bit 9 LVDS 39 EXT Q9 15 EXT Q10 Q output data bit 10 LVDS 40 EXT Q10 26 GND Ground 2 GND Ground 27 GND 3 Q output data bit 0 LVDS s 4 Q output data bit 1 LVDS 5 Q output data bit 2 LVDS x 6 Q output data bit 3 LVDS 7 GND Ground z 8 Q output data bit 4 LVDS s 9 Q o
60. reinstall the RF3 module 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 on 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 37 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 screws securing the module to the main chassis Lift the module up Reinstallation Reverse step 3 to reinstall the RF4 module RSA3408A Service Manual Removal and Installation Procedures To REF OUT Li To REF IN W250 To IF OUT RF5 module RF6 module RF2 module RF3 module Figure 6 15 RF modules removal RSA3408A Service Manual 6 29 Removal and Installation Procedures RF5 Module 1 RF6 Module 1 6 30 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 on page 6 13 Orient the analyze
61. setting uncertainty test Attenuation 0 dB 5 dB 10 dB 15 dB 20 dB 25 dB 30 dB 30 dB 35 dB 40 dB 45 dB 50 dB 55 dB Level linearity test Amplitude 0 dB 10 dB 20 dB 30 dB 40 dB 50 dB 3rd order intermodulation distortion test 3 d order intermodulation distortion 5 dBm reference level 2 GHz center frequency 4 54 measurement e NO UJ Test result Test result Test result Py High limit 0 2 dB 0 2 dB 0 2 dB 0 2 dB 0 2 dB 0 2 dB 0 2 dB 0 2 dB 0 2 dB 0 2 dB 0 2 dB High limit 0 2 dB 0 2 dB 0 2 dB 0 2 dB 0 2 dB 0 2 dB High limit 78 dBc RSA3408A Service Manual Performance Tests Displayed average noise level test Frequency 10 MHz 2 GHz 3 GHz 7 GHz Residual response test Baseband 1 to 40 MHz RF 1 0 5 to 3 5 GHz RF2 3 5 to 6 5 GHz Spurious response test Frequency 25 MHz 2 GHz 5 GHz 7 GHz RSA3408A Service Manual 4 55 Performance Tests 4 56 RSA3408A Service Manual Adjustment Procedures ee Adjustment Procedures Purpose Adjustment Interval Adjustment After Repair This section contains information needed to manually adjust the RSA3408A 8 GHz Real Time Spectrum Analyzer The section is divided into three subsections General information about adjusting the analyzer m A list of equipment required to perform the adjustments The procedures for adjusting the analyz
62. the generator 5 20 RSA3408A Service Manual Adjustment Procedures Procedure 2 Performs the all band calibration using two signal generators Item 1 which covers the baseband and RF1 band and Item 2 which covers the 2 and bands Equipment Two signal generators Item 1 and 2 50 coaxial cable Item 11 One 10 dB attenuator Item 14 One GPIB cable Item 13 two required One SG flatness floppy disk Item 16 for each signal generator Prerequisites Refer to page 5 1 1 Prepare for the calibration See the following figure for the hookup RSA3408A J Sggses L oignal generator Item 2 oignal generator Item 1 See GPIB cable GPIB cable 3 20000 9 10 dB attenuator 50 N N coaxial cable a Power off the analyzer and the signal generators b Connect the analyzer and the generators with GPIB cables Connect the analyzer INPUT through a 10 dB attenuator followed by a 50 Q N N coaxial cable to the generator Item 1 output d Power on the analyzer and the generators e Set the GPIB address of the generators ranging from 1 to 30 f Insert the SG flatness floppy disk Item 16 for the generator Item 1 to the floppy di
63. to 8 GHz Agilent 83712B Checking flatness in Output level 30 dBm to 10 dBm RF2 and RF3 Accuracy lt 1 dB 3 Signal generator Frequency range 1 MHz to 8 GHz Agilent E8257D Checking flatness in all bands Output level 30 dBm to 10 dBm Accuracy lt 1 dB 4 Signal generator Frequency 2 GHz Output Rohde amp Schwarz SMIQ03B Checking intermodulation 2 10 dBm Digital modulation QPSK Agilent E4438C distortion Symbol rate 4 096 MS s 4 10 RSA3408A Service Manual Performance Tests Table 4 3 Test equipment Cont Item number and description 5 6 Spectrum analyzer Frequency counter RF power meter RF power sensor Power combiner BNC cable N N cable N SMA cable Three required GPIB cable Two required RF attenuator Terminator SG flatness floppy disk Mouse Keyboard Frequency 8 GHz Agilent E4440A Checking level linearity Display scale fidelity lt 0 13 dB 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 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 296 RSS Range 500 MHz to 2 GHz Isolation Mini Circuits ZAPD 21 Checking intermodulation 18 dB Insertio
64. 0M IF Flatness RF1 1G IF Flatness RF1 2G IF Flatness RF1 3G IF Flatness RF2 5G IF Flatness RF3 06G HF Flatness RF1 HF Flatness RF2 HF Flatness RF3 Spurious RF1 Spurious RF2 Spurious RF3 Procedure Perform the baseband flatness calibration Use the All Band Calibration on page 5 19 but select BB in the service Cal menu Perform the IF flatness wide IQ calibration Refer to IF Flatness Wide Iq Calibration on page 5 23 for the procedure Perform the RF flatness calibration Refer to All Band Calibration on page 5 19 for the procedure You can select RF1 RF2 RF3 or RF1 RF2 RF3 with Cal Select in the service Cal menu for the band in which the error occurred Perform the spurious calibration Use the All Band Calibration on page 5 19 but select Spurious with Cal Select in the service Cal menu You can select RF1 RF2 RF3 or RF1 RF2 RF3 in the service Cal menu for the band in which the error occurred 2 Perform the auto tests again to check that the instrument passes If the spurious test fails again go to the next section Further Spurious Test Further Spurious Test Performs spurious test at the specified frequency 1 Connect a USB mouse Item 17 and keyboard Item 18 to the USB ports on the side panel of the analyzer 2 Press MEASURE front panel Spurious PV 3 Set the GPIB address of the signal generator a Press the SG side key to select the manufacturer of the generator for the
65. 10 dBm Does the display report any errors No Is the spectrum displayed with correct frequency and amplitude Yes Yes Unplug the coaxial cable W119 from J410 on the A100 Cal generator board See Figure 6 38 Using another spectrum analyzer measure the output at the connector No Is the spectrum measured as follows Frequency 100 MHz 10 Hz Amplitude 35 dBm Unplug the coaxial cable W13 from J410 on the A100 Cal generator board See Figure 6 38 Using another spectrum analyzer measure the output at the connector the spectrum measured as follows Frequency 400 MHz 10 Hz Amplitude 1 5 dBm Replace RF4 module Yes Replace Replace A100 Cal generator board Step attenuator the output level increase to 20 dBm 2 dB transiently when pressing the Calibrate Gain side key No Input relay or A100 Cal generator Figure 6 36 Troubleshooting procedure 3 Signal path Cont RSA3408A Service Manual 6 73 Troubleshooting From page 6 73 Span check Unplug the coaxial cable W307 on the RF3 module See Figure 6 37 Using another spectrum analyzer measure the output at the connector Modify the analyzer controls as follows Center frequency 100 MHz Span 36 MHz Reference level 0 dBm Is the spectrum measured as follows Frequency 421 MHz 10 Hz Amplitude 32 dBm Yes Replace RF2 module Modify
66. 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 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 Removable hard disk modules Option 06 only see Figure 6 5 Mother board and daughter boards see Figure 6 6 Bottom modules Power supply see Figure 6 7 Bottom modules 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 Cleaning instructions are found under nspection and Cleaning at the beginning of this section WARNING Before doing any procedure in this s
67. 1341 00 50 36 in male to male N oignal 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 O Checking flatness Female to female N connectors Signal interconnection RSA3408A Service Manual Adjustment Procedures Table 5 1 Test equipment Cont Item number and description Minimum requirements Purpose 15 Mouse Standard accessary File operation 16 Keyboard 2 USB Standard accessary File operation 17 SG flatness floppy disk Created or updated with the proce 3 5 inch 720 K or 1 44 MB Storing flatness correction Two required dures described on page 5 6 DOS compatible floppy disk data for the signal generators Item 1 2 and 3 1 Usethis instrument only The adjustment procedures specify that the analyzer controls this instrument over the GPIB 2 Required only when creating a flatness correction files for the signal generators Item 1 2 and 3 3 To make an SG flatness floppy disk Item 17 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 Preparation Do the following procedures before executing th
68. 15 2 Back up the user files Refer to step 1 on page 6 33 to back up the user files 3 Orient the analyzer Set the analyzer so its bottom is down on the work surface and its front is facing you 4 Remove the hard disk cable assembly See Figure 6 18 on page 6 37 a Unplug the hard disk cable assembly from the IDEI connector on the CPU board and J900 on the A62 Front connection board See Figure 6 16 on page 6 32 and Figure 6 17 on page 6 34 for the connector location b Remove the two screws securing the cable mount bracket to the outside HDD bracket assembly Lift the bracket away c Disconnect the hard disk cable assembly from the hard drive cartridge Lift the cable assembly up away 5 Remove the hard drive cartridge See Figure 6 18 on page 6 37 Pull up the hard drive cartridge from the instrument RSA3408A Service Manual Removal and Installation Procedures RSA3408A Service Manual 9 Cable mount bracket e Black sleeving WCG Ne Q To IDE1 on the CPU board To J900 on the A62 board Figure 6 18 Hard drive cartridge removal TW Hard drive cartridge 6 37 Removal and Installation Procedures 6 Remove the hard disk See Figure 6 19 a Remove the screws with washers and supports that hold the hard disk drive to the inside HDD bracket b
69. 15 XX 2 CA ASSY SP ELEC 4 AWG26 40CM L LPLUG amp JACK PANEL MOUNT W SHIELD USB 6 407 A705 XX 2 BRACKET SUPPORT USB AL 7 348 A146 XX 4 GASKET SHIELD CONDUCTIVE URETHANE FOAM 6X6 6 8CM LENGTH 8 436 A016 XX 1 DRAWER RACK MOUNT WCA230A 280A 9 344 0557 XX 2 CLIP CABLE WIRE SADDLE 11 1MMX14 7MM 66 NYLON 10 211 1028 XX 4 SCREW MACHINE M4X8MM L PNH STL ZN C PL CROSS REC W FLAT amp LOCK WASHER 11 211 8800 XX 12 SCREW MACHINE M4X8MM L BDGH STL ZN C 12 211 8800 XX 8 SCREW MACHINE M4X8MM L BDGH STL ZN C 13 211 A039 XX 4 SCREW MACHINE M4X14MM L PNH STL ZN PL CROSS REC W FLAT amp LOCK WASHER 14 386 A866 XX 4 PLATE NUT 15 220 0193 XX 8 NUT PLAIN HEX M4X7MM HEX STL ZN C 16 407 A708 XX 2 BRACKET SLIDE RAIL MT 17 407 A052 XX 1 BRACKET 5517 18 351 A167 XX 2 GUIDE SLIDE RACKMOUNT L AND R 457 2MM SLIDE LENGTH 19 212 A012 XX 3 SCREW MACHINE M4X8MM L TRUSS HD STL NI PL CROSS REC 20 333 A447 XX 1 PANEL FRONT RACK MOUNT 21 211 A044 XX 4 SCREW MACHINE M3X10MM L FLH STL ZN PL CROSS REC 22 211 1040 XX 2 SCREW MACHINE M3X8MM L FLH STL ZN C CROSS REC 10 30 RSA3408A Service Manual Replaceable Parts S N N N N NN DOT VNONNNS S Ohman BUG C QED A Sess Figure 10 14 Rackmount 2 10 31 RSA3408A Service Manual Replaceable Parts Replaceable parts list Fig amp index Tektronix Serial No Serial No number part number effective discontd Qty Nam
70. 2 GHz 512 MB DIMM Windows XP PCI gt 40 GB 2 5 inch IDE 1 44 MB 3 5 inch USB IEEE 488 2 10 100 BASE T IEEE 802 3 USB USB VGA D SUB 15 pins Description LEMO 6 poles Pin 1 NC Pin 2 ID1 Pin 3 ID2 Pin 4 12 V Pin 5 GND Pin 6 12 V MDR 3M 50 pins x 2 Refer to page 1 19 data 16 bit LVDS Q data 16 bit LVDS Clock LVDS max 51 2 MHz Data valid LVDS not used Output enable Connecting GND enables output gt 5 ns data transition to clock rising edge See Figure 1 1 gt 5 ns clock rising edge to data transition See Figure 1 1 1 5 dB 36 MHz span 1 2 dB 20 MHz span 100 36 MHz span 15 20 MHz span RSA3408A Service Manual Specifications Table 1 19 Power requirements Characteristics Rating voltage Voltage range Line frequency Mains Fuse Data Heat dissipation Maximum power Maximum line current Surge current RSA3408A Service Manual Setup time Hold time gt lt lt 5 Data Clock EXT IQ CLK Figure 1 1 Definition of the setup and hold time 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 400 VA 5 A rms at 50 Hz 90 V line with 596 clipping Maximum 52 A peak 25 C for x5 line cycles after the product has been turned off for at least 30 s Specifications Phys
71. 20 RSA3408A Service Manual Performance Tests Frequency Checks These procedures check the frequency related characteristics and are listed as checked in Chapter 2 Specifications Table 1 1 on page 1 2 Check Frequency Readout Equipment One signal generator Item 2 or 3 Requi Accuracy eines One 50 Q N N coaxial cable Item 11 Prerequisites Refer to page 4 10 l 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 Set the generator controls PYCQUCICY 2000 nop aedes a 10 MHz 222992993 v0 rd cats 10 dBm c Hook up the signal generator Connect the generator output through a 50 Q N N coaxial cable to the analyzer INPUT See the following figure RSA3408A Signal generator Output 50 coaxial cable RSA3408A Service Manual 4 21 Performance Tests 2 Check frequency accuracy in the baseband a Modify the analyzer default settings m Press the FREQUENCY CHANNEL key on the front panel The Center Freq menu item is selected by default Set the frequency to 10 MHz using the numeric keypad m Press the SPAN key on the front panel The Span menu item is selected by default Set the span to 1 MHz using the general p
72. 28 ksps 64 ksps 25 6 ksps 12 8 ksps 6 4 ksps 2 56 ksps 1 28 ksps 640 sps 256 sps 128 sps Minimum 1024 samples Maximum 16 384 000 samples Standard 65 536 000 samples Option 02 1024 samples Real Time S A Demod and Time modes otandard 64 Mbytes Option 02 256 Mbytes 1 7 Specifications Table 1 7 Trigger Characteristics Trigger mode Trigger event source Pre Post trigger setting Power trigger Frequency mask trigger Option 02 Mask resolution Level range Real time event detection bandwidth External trigger Threshold voltage Setting Resolution Input impedance Trigger output voltage Trigger marker position timing uncertainty 1 8 Description Free run Triggered Power Span BW Frequency mask Option 02 External Trigger position can be set from 0 to 100 of total data length 0 to 40 dBfs 1 bin 0 to 60 dBfs Baseband 40 MHz 1024 point FFT 50 overlapping RF 36 MHz 1024 point FFT 50 overlapping 1 5 V to 1 5 V adjustable 0 1 V gt 2 KQ High gt 2 0 V Low lt 0 4 V output current lt 1 mA 2 sample points Power External trigger RSA3408A Service Manual Specifications Table 1 8 RBW Resolution Bandwidth Characteristics Description Filter shape Gaussian Rectangle Root Nyquist Setting range 1 Hz to 10 MHz Minimum settable RBW extended resolution on Span gt 2 GHz 100 kHz 1 GHz lt Span lt 2 GHz 50 kHz 500 MHz lt Span lt 1 GHz 20 kHz 20 MHz l
73. 3 Remove the A61 Power switch board See Figure 6 29 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 4 Reinstallation Reverse step 3 to reinstall the A61 board RSA3408A Service Manual 6 59 Removal and Installation Procedures Preamp Power Connector 6 60 RF Input Connector LCD Display 1 1 Assemble equipment and locate module to be removed a You will need a 14 mm nutdriver Items 9 b Locate the preamp power connector in the locator diagram Front panel modules Figure 6 9 on page 6 19 Orient the front panel assembly Set the front panel assembly so its front 15 down on the work surface and its back is facing you Remove the preamplifier power connector See Figure 6 29 Using the 14 mm nutdriver remove the nut securing the connector to the front bracket Reinstallation Reverse step 3 to reinstall the preamp power connector Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items 1 and 3 a 6 inch nutdriver Item 10 and a 6 inch wrench Item 13 b Locate the RF input connector in Figure 6 9 on page 6 19 c Remove the front panel assembly refer to the Front Panel Assembly procedure on page 6 56 Orient the analyzer Set the analyzer so its bottom 1s down on the work surfac
74. 3408A Service Manual Performance Verification __ i aj h h OSOS Performance Verification Procedures 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 Disadvantages They require more time to perform and suitable test equipment is required Refer to Equipment Required on page 4 10 RSA3408A Service Manual 4 1 Performance Verification Procedures Conventions Throughout these procedures the following conventions apply Each test procedure uses the following general format Title of Test Equipment Required Prerequisites Procedure m Fach
75. 4 7 Spurious measurement 4 51 Table 5 1 Test equipment 5 2 Table 5 2 Calibration items 5 15 RSA3408A Service Manual Table of Contents RSA3408A Service Manual Table 6 1 Table 6 2 Table 6 3 Table 6 4 Table 6 5 Table 6 6 Table 6 7 Table 6 8 Relative susceptibility to static discharge damage 6 3 External inspection check list 6 5 Internal inspection checklist 6 6 Summary of procedures 6 9 Tools required for module removal 6 10 Normal supply voltages e 6 77 Test point voltages on A70 6 78 Symptoms and faulty modules 6 79 vii Table of Contents vill RSA3408A Service Manual i eee General Safety Summary To Avoid Fire or Personal Injury Symbols and Terms RSA3408A Service Manual 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 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
76. 6 MHz IF or 383 MHz for 38 MHz IF and A D clock with the clock frequency of 102 4 MHz Both the 3 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 10 A D board respectively RSA3408A Service Manual Theory of Operation RF4 Module The 10 MHz 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 RF6 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 15 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 400 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 3d Local Oscillator and other components Digital S
77. 7 Using another spectrum analyzer measure the output at the connector Using another spectrum analyzer measure the output at the connector Is the spectrum measured as follows Frequency 421 MHz 10 Hz Amplitude 15 dBm Is the spectrum measured as follows Frequency 76 MHz 10 Hz Amplitude 20 dBm No Yes Unplug the coaxial cable W503 on the RF6 module See Figure 6 37 Using another spectrum analyzer measure the output at the connector Yes Replace A10 A D board or A40 DIFP board the spectrum measured as follows Frequency 345 MHz 10 Hz Unplug the coaxial cable W502 on Amplitude 5 dBm the RF5 module See Figure 6 37 Using another spectrum analyzer measure the output at the connector Yes Replace RF5 module Is the spectrum measured as follows Frequency 76 MHz 10 Hz Amplitude 8 dBm No Unplug the coaxial cable W29 on the RF4 module See Figure 6 37 Using another spectrum analyzer measure the output at the connector Replace RF6 module Y Replace RF6 module the spectrum measured as follows Frequency 43 125 MHz 10 H Amplitude 2 dBm Figure 6 36 Troubleshooting procedure 3 Signal path Cont 6 72 Unplug the coaxial cable W201 on the RF3 module See Figure 6 37 Using another spectrum analyzer measure the output at the connector the spectrum measured
78. A Service Manual Removal and Installation Procedures 6 Remove the input relay a Using a 1 Phillips screwdriver remove the two screws securing the input relay to the bracket b Using a inch wrench disconnect the SMA cable W101 from the RF input c Remove the five screws securing the RF1 bracket to the main chassis Lift the RF1 bracket up away d Using an SMA torque driver disconnect the SMA cables W101 W119 and W120 from the input relay e Disconnect the cable W114 from the input relay 7 Reinstallation Reverse steps 3 through 6 to reinstall the input relay band relay and bandpass filter Y TF RSA3408A Service Manual 6 55 Removal and Installation Procedures Procedures for Front Panel Modules Read the Access Procedure on page 6 21 before proceeding The procedures are presented in the following order Front Panel Assembly 1 6 56 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 1 and 3 b Locate the front panel assembly in the locator diagram Front panel modules Figure 6 9 on 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 the analyzer so its bottom 1s down o
79. A70 DC Power Board The Trigger Detector achieves real time frequency trigger function When the Frequency Mask Trigger function is activated window function operation 1s 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 con nected 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 The Acquisition Memory saves time domain data separated into I and Q signals The A40 DIFP board also interfaces between the data block and Windows system I Q data output from the digital filter 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 local 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 located on the rear panel are connected with this board An ext
80. AC power board c 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 a Unplug the cables at J912 J910 and J911 on the A50 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 RSA3408A Service Manual Removal and Installation Procedures W80 to CN53 f W83 to CN51 W82 to Z Z CN61 and CN81 W94 to CN1 i SS M 2 W81 to CN53 M f W85 to CN51 CN53 Uf W93 to CN1 i W84 to CN61 and CN81 nsulator Shield bracket Figure 6 24 Power supply 1 and 2 removal RSA3408A Service Manual 6 47 Removal and Installation Procedures A71 AC Power Board 1 Power Supply 3 6 48 Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items 1 and 3 b Locate the 71 AC power board in the locator diagram Bottom modules Power supply Figure 6 7 on page 6 17 Orient the analyzer Set the analyzer so its top is down on the work surface and its front side is facing you Remove the A71 AC power board See Figure 6 25 Also see Figure 6 38 on page 6 76 for cable interconnection a Unplug the cables at J100 J110 J120 and J130 on the A71 boar
81. AT 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 RSA3408A Service Manual Replaceable Parts Figure 10 3 Front panel assembly 2 10 9 RSA3408A Service Manual Replaceable Parts Replaceable parts list Fig amp index Tektronix Serial No Serial No number part number effective discontd Qty Name amp description 10 4 1 211 1028 XX 2 SCREW MACHINE M4X8MM L PNH STL ZN C PL CROSS REC W FLAT amp LOCK WASHER 2 650 4726 XX 1 MODULE RF DOWNCONVERTER 3RD LO OSC amp AD CLK RF6 RSA3408A 3 650 4725 XX 1 MODULE RF DOWNCONVERTER 3RD GAIN RF5 RSA3408A 4 650 4724 XX 1 MODULE RF DOWNCONVERTER SYNTHESIZER RF4 RSA3408A 5 650 4723 XX 1 MODULE RF DOWNCONVERTER 1ST RF3 RSA3408A 6 650 4722 XX 1 MODULE RF DOWNCONVERTER 2ND RF2 RSA3408A 10 10 RSA3408A Service Manual Replaceable Parts l e Jer LY LY f 7 f DESA LEKA y 9 4 TVA A e olf y V Figure 10 4 RF
82. 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 RSA3408A Service 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 the Calibrate Center Offset sid
83. ELEC 24 AWG28 20CM L DDK 57FE TO 2 54MM GPIB NUT PLATE STL CABLE ASSY RF 50 OHM COAX 12CM L 1 5D QEW SMB L TO SMB L CABLE ASSY RF 500HM COAX 17CM L 1 5D QEW SMB L TO SMB L QTY 7 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 500HM PANEL MOUNT QTY 8 FOR OPTION 03 PANEL REAR 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 PL CROSS REC W FLAT amp LOCK WASHER CHASSIS MAIN SCREW MACHINE M4X8MM L PNH STL ZN C PL CROSS REC W FLAT amp LOCK WASHER RSA3408A Service Manual Replaceable Parts W44 W45 W620 W621 W560 1 Figure 10 11 Chassis modules 10 25 RSA3408A Service Manual Replaceable Parts Replaceable parts list Fig amp index number 10 12 4 2 28 4 5 6 7 8 10 26 Tektronix part number 211 A004 XX 211 0871 XX 407 4990 XX 348 A143 XX 407 A681 XX 348 1644 XX 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
84. EVM EVM Typical Symbol rate Center frequency 1 GHz 100 kHz 1 MHz 4 MHz 10 MHz 20 MHz 100 kHz 1 MHz 4 MHz 10 MHz 20 MHz 100 kHz 1 MHz 4 MHz 10 MHz 20 MHz 100 kHz 1 MHz 4 MHz 10 MHz 20 MHz Center frequency 2 GHz Center frequency 3 GHz Center frequency 5 GHz Table 1 15 ACLR measurement Option 27 Characteristics Description ACLR 3GPP down link Test model 1 16 ch 1800 to 2200 MHz carrier frequency Real Time measurement 66 dB 5MHz offset 68 dB 10MHz offset Sweep measurement with noise correction 68 dB 5MHz offset Typical 70 dB 10MHz offset Table 1 16 Wireless LAN measurement Option 29 Characteristics Description Residual EVM Typical IEEE 802 11a g 54 Mbps OFDM lt 44 dB center frequency 2 447 GHz lt 42 dB center frequency 5 5 GHz IEEE 802 11b 11 Mbps CCK lt 0 7 center frequency 2 447 GHz RSA3408A Service Manual Specifications Table 1 17 Controller Characteristics Controller CPU DRAM OS System bus Storage medium Hard disk Floppy disk Interface Printer port GPIB LAN Mouse Keyboard Monitor out Table 1 18 External output connector Characteristics Preamp power connector Connector type Pin assignment Digital I Q output Option 05 Connector type Pin assignment Data output Control output Control input Setup time Hold time Flatness of output data before correction Amplitude Phase Description Intel Celeron 1
85. FLAT amp LOCK WASHER 20 407 5106 XX 1 BRACKET FDD amp HDD OUTSIDE FRONT 21 252 0719 XX 1 PLASTIC SH CHAN NULON 0 047 X 0 063 THK 5 7CM LENGTH 22 252 0719 1 PLASTIC SH CHAN NULON 0 047 X 0 063 THK 6 3CM LENGTH 23 211 0941 6 SCREW MACHINE M3 X 6MM L FLH STL ZN PL CROSS REC 24 351 169 2 GUIDE CKT BD NYLON BLACK 19MM L 25 407 5103 1 BRACKET FDD amp HDD 26 351 168 1 GUIDE CKT BD NYLON BLACK 100MM L 27 407 5102 1 BRACKET SHIELD PC BOARD 10 16 RSA3408A Service Manual Replaceable Parts See Figure 10 8 Figure 10 7 Disk modules Option 06 1 10 17 RSA3408A Service Manual Replaceable Parts Replaceable parts list Fig amp index Tektronix Serial No Serial No number part number effective discontd Qty Name amp description 10 8 OPTION 06 ONLY 1 407 5117 XX 1 BRACKET CONNECTOR HANDLE HDD 2 252 0719 XX 1 PLASTIC SH CHAN NULON 0 047X0 063 THK 1M L 3 174 5198 XX 1 CA ASSY SPELEC 26AWG 40CM RIBBON JST 2P TO JST 2P 4 162 0927 XX 10 INSUL SLEEVING ELECTRICAL HEAT SHRINK 1 71D POLYOLEFIN BLACK CM 0 019WALL THICKNESS SAFETY CONTROLLED 5 174 5203 XX 1 CA ASSY SP ELEC FLAT 40 COND 28AWG 45CM L 2X20 HEADER CONN BOTH KEY POSITION 20
86. Gty O n N N 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 10 5CM SHLD GSKT ELEC CONDUCTIVE URETHANE FOAM 1X4 W ADHESIVE 10CM GASKET SHIELD FINGER TYPE 15 2MM W X 5 6MM H X 7 2MM L RSA3408A Service Manual Replaceable Parts Figure 10 12 Chassis modules 2 10 27 RSA3408A Service Manual Replaceable Parts Replaceable parts list Fig amp index Tektronix Serial No Serial No number part number effective discontd Qty amp description 10 13 OPTION 1R ONLY 1 211 A039 XX 2 SCREW MACHINE M4X14MM L PNH STL ZN PL CROSS REC W FLAT amp LOCK WASHER 2 407 A694 XX 2 BRACKET REAR RACK MOUNT 3 129 A137 XX 1 SPACER POST 46 0MM L M3 INT EXT STL MFZN C PL 5 5MM HEX 4 407 A695 XX 1 BRACKET SHELD SIDE PANEL 5 211 0871 XX 2 SCREW MACHINE M3X6MM L PNH
87. Hook up the signal generator Connect the generator output through a 50 N N coaxial cable to the analyzer INPUT See Figure 5 10 RSA3408A Signal generator Output 50 N N coaxial cable Figure 5 10 Test hookup RSA3408A Service Manual 5 29 Adjustment Procedures c 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 m Press the FREQUENCY CHANNEL key on the front panel m With the Center Freq side key set the frequency to 6 5 GHz using the numeric keypad m 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 6 5 GHz 4 Disconnect the test equipment Disconnect the cable at INPUT 5 30 RSA3408A Service Manual Maintenance Maintenance This section contains the information needed to do periodic and corrective maintenance on the RSA3408A 8 GHz Real Time Spectrum Analyzer 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 anal
88. MKD RSA3408A POLYCARBONATE CA ASSY SP ELEC 16 26AWG 15CM RIBBON W HLDR CA ASSY SP ELEC 5 26AWG 27CM RIBBON W HLDR RSA3408A Service Manual Replaceable Parts 2 Front panel assembly 1 Figure 10 10 7 RSA3408A 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 XX 407 A738 XX 343 1286 XX 211 A004 XX 343 1644 XX 348 1644 XX 119 B125 XX 119 B126 XX 174 B984 XX 211 0871 XX 131 6608 XX 211 1028 XX 386 A857 XX 348 A116 XX 211 0751 XX Serial No effective Serial No discont d Gty 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 FL
89. 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 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 CA ASSY SP ELEC 30 30AWG 20CM W HLDR W SHIELD 0 19 305 1 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 RSA3408A Service Manual Replaceable Parts See Figure 10 6 for details Figure 10 5 Mother board and its daughter boards 10 13 RSA3408A Service Manual Replaceable Parts Replaceable parts list Fig amp index number 10 6 4 3 4 5 6 27 8 10 14 Tektronix part number 650 4755 XX 348 A144 XX 129 A593 XX 210 A014 XX 210 0949 XX 211 A170 XX 348 1656 XX 211 A275 XX 407 A733 XX 348 1472 XX 119 5953 XX 671 5852 XX 211 0751 XX 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 T A A Ff Name amp
90. 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 m 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 requirements shown in Table 4 7 initially 73 dBc 4 50 RSA3408A Service Manual Performance Tests RSA3408A Service Manual d Repeat substeps a through c until all frequency settings listed in Table 4 7 are checked Table 4 7 Spurious measurement Band Spurious response Baseband 73 dBc RF1 73 dBc RF2 70 dBc RF3 70 dBc 3 Disconnect the test equipment Disconnect the cable at the analyzer input 4 51 Performance Tests Test Record Photocopy the following test record pages and use them to record the perfor mance test results for your analyzer 4 52 RSA3408A Service Manual Performance Tests RSA3408A Test Record Serial Number Certificate Number Calibration Date Technician Frequency readout test 10 MHz reference output test Test result High limit Accuracy 9 999 998 8 Hz Was 10 000 001 2 Hz Noise sideband test Absolute amplitude accuracy test 25 MHz 10 dBm 10 3 dBm DENEN 9 7 dBm 100 MHz 20 dBm 20 5 dBm EE 19 5 dBm RSA3408A Service Manual 4 53 Performance Tests Input attenuator
91. 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 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 4MA DCRES 0 1O0HM 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 RSA3408A Service Manual Replaceable Parts Figure 10 9 Bottom modules Power supply 10 21 RSA3408A Service Manual Replaceable Parts Replaceable parts list Fig amp
92. STL ZN PL CROSS REC W FLAT 7MM OD amp LOCK WASHER 6 211 A039 XX 4 SCREW MACHINE M4X14MM L PNH STL ZN PL CROSS REC W FLAT amp LOCK WASHER 7 211 A004 XX 4 SCREW MACHINE M4X10MM L PNH STL ZN C CROSS REC W FLAT amp LOCK WASHER 8 211 1028 XX 4 SCREW MACHINE M4X8MM L PNH STL ZN C PL CROSS REC W FLAT amp LOCK WASHER 9 407 A699 XX 1 BRACKET SUPPORT FRONT LEFT 10 367 0492 2 HANDLE BOW 60MM L SST 11 211 A132 XX 4 SCREW MACHINE M5X16MM L PNH STL ZN PL CROSS REC W FLAT amp LOCK WASHER 12 407 A700 XX 1 BRACKET SUPPORT FRONT RIGHT 10 28 RSA3408A Service Manual Replaceable Parts gt N an Donan S X IN NNONNONA NN C DAC EAS ON NN DSA p S WI N NN w esssssses 2 NN M NN NN b L NN S 1 Figure 10 13 Rackmount 1 10 29 RSA3408A Service Manual Replaceable Parts Replaceable parts list Fig amp index Tektronix Serial No Serial No number number effective discontd Qty amp description 10 14 OPTION 1R ONLY 1 174 C016 XX 1 CA ASSY SP ELEC 8 AWG26 40CM L PLUG amp JACK PANEL MOUNT W SHIELD LAN 2 211 0871 XX 1 SCREW MACHINE M3X6MM L PNH STL ZN PL CROSS REC W FLAT 7MM OD amp LOCK WASHER 3 407 A701 XX 1 BRACKET LAN CONNECTOR 4 348 A145 XX 2 SHLD GSKT ELEC CONDUCTIVE URETHANE FOAM W4 8 X H5 1 W ADHESIVE TAPE 3CM LENGTH 5 174 C0
93. Service Manual Tektronix RSA3408A 8 GHz Real Time Spectrum Analyzer 071 1691 00 This document applies to firmware version 3 01 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 visit www tektronix com to
94. TRACE AVG Trace 1 Type Average m Press the Number Of Averages side key and set the value to 50 using the general purpose knob 4 46 RSA3408A Service Manual Performance Tests RSA3408A Service Manual 2 Check residual response in the baseband a Measure residual response m Press the LINES key on the front panel m Press the Show Line side key to select Vertical Press the Number Of Line key to select 1 The Linel menu item is selected by default Set the value to 1 MHz using the numeric keypad Press the Show Line side key to select Horizontal W Press the Number Of Line key to select 1 The Linel menu item is selected by default Set the value to 93 dBm using the numeric keypad Check against limits Confirm that the residual signal level is 93 dBm or less at 1 MHz or more 3 Check residual response in the RFI band a Modify the analyzer controls m Press the FREQUENCY CHANNEL key on the front panel m The Center Freq menu item is selected by default Set the frequency to 2 GHz using the numeric keypad Press the SPAN key on the front panel m The Span menu item is selected by default Set the span to 3 GHz using the numeric keypad Measure residual response m Press the LINES key m Press the Show Line side key to select Horizontal m Press the Number Of Line key to select 1 m The Linel menu item is selected by default Set the value to 90 dBm using the numeric keypa
95. X 348 A151 XX 213 A249 XX 367 0247 XX 200 2191 XX 348 1110 XX 437 0519 XX 354 A054 XX 210 1541 XX 213 1145 XX 200 4964 XX 348 1824 XX 348 1824 XX 167 0307 XX 161 0230 XX Serial No effective Serial No discont d Gty N A A O N N N Name amp description COVER 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 PORTABLE CABINET ASSY PORTABLE WITH HANDLE AND FOOT SCREW MACINE M4X10MM L PNH STL ZN C CROSS REC W FLAT amp LOCK WASHER 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 CABINET ASSY OPT06 RING RETAINING EXT TYPE E U O 3 0MM DIA GROOVE SST WASHER FLAT 4 3MM X 8MM OD X 0 5MM THK OM CC 0408 05 THUMBSCREW EXT HDD COVER COVER EXT HDD TOP SHIELD GASKET ELEC CONDUCTIVE URETHANE FOAM 3MM X W ADHESIVE 3102 4 8CM LENGTH SHIELD GASKET ELEC CONDUCTIVE URETHANE FOAM 3MM X 3MM W ADHESIVE 3102 9 3CM LENGTH IC MEMORY USB BKUP EXE PRE INSTALLED TYPE SN LABEL ATTACHED RSA3408A OPT06 CABLE ASSY PWR STANDARD ACCESSORY RSA3408A Service Manual Replaceable Parts EN 2020000 ANS 0
96. all the rear panel refer to the procedure Rear Panel Modules on page 6 65 Reinstall the daughter boards refer to A70 A D Board through A70 DC Power Board starting on page 6 41 Reinstall the RF modules refer to RF Modules on page 6 27 RSA3408A Service Manual Removal and Installation Procedures RSA3408A Service Manual Figure 6 23 Mother board removal Removal and Installation Procedures Procedures for Power Supply Modules on the Instrument Bottom Read the Access Procedure on page 6 21 before proceeding The procedures are 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 7 on page 6 17 Orient the analyzer Set the analyzer so its top is down on the work surface and its front is facing you See Figure 6 25 for the following steps 3 and 4 Also see Figure 6 38 on page 6 76 for cable interconnection 3 4 S 6 46 Remove the power supply 1 a Unplug the cables at J902 J900 and J901 on the A50 Mother board b Unplug the cable at J110 on the A71
97. arts 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 XX in place of the revision level number 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 RSA3408A Service Manual Replaceable Parts Using the Replac
98. as follows Frequency 4231 MHz 10 Hz Amplitude 20 dBm No Yes Replace RF2 module or RF4 module Check gain and offset values of the RF3 module in the service menu Refer to Reconfiguration of RF Modules on page 5 27 No Are the gain and offset values set correctly Yes Replace RF3 module or RF4 module Enter the correct gain and offset values of the RF3 module Refer to Reconfiguration of RF Modules on page 5 27 Restart the analyzer i Replace RF4 module RSA3408A 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 Change the reference level to 30 dBm on the analyzer 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 To page 6 74 RF2 band check Modify the analyzer controls as follows Center frequency 3 6 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 6 GHz Level
99. assembly 2 KEF modules Mother board and its daughter boards Disk modules 504406 2teecsn00es ed upas awu saa Wawa RSA3408A Service Manual Table of Contents RSA3408A Service Manual Figure 10 7 Disk modules Option 06 1 10 17 Figure 10 8 Disk modules Option 06 2 10 19 Figure 10 9 Bottom modules Power supply 10 21 Figure 10 10 Bottom modules RF1 10 23 Figure 10 11 Chassis modules 1 10 25 Figure 10 12 Chassis modules 2 10 27 Figure 10 13 Rackmount 1 10 29 Figure 10 14 Rackmount 2 10 31 V Table of Contents List of Tables vi Table 1 1 Frequency 1 2 Table 1 2 Noise sideband 1 3 1 3 INOUE essed sean nee es CP rS PRIN EUR OR NOU RR AUR 1 4 Table 1 4 Amplitude 1 5 Table 1 5 Spurious response 1 6 Table 1 6 Acquisition 1 7 Table tea Sous ru ne ee san sees EINER OR OR ACIER GR IR 1 8 Table 1 8 RBW Resolution Bandwidth 1 9 Table 1 9 Trace and di
100. ault Set the frequency to 100 MHz using the numeric keypad m Press the AMPLITUDE key on the front panel m Press the RF Atten Mixer side key to select RF Att m The RF Att menu item is selected by default Set the attenuation to 0 dB 4 31 Performance Tests c Calibrate the analyzer gain m Press CAL Calibrate Gain m Press Amplitude Auto Level 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 0 5 dB 9 Disconnect the test equipment Disconnect the cable at the analyzer input 4 32 RSA3408A Service Manual Performance Tests Check Input Attenuator Equipment One signal generator Item 1 Setting Uncertainty Required One 50 Q N N coaxial cables Item 11 Prerequisites Refer to page 4 10 l Prepare for the test a Set the generator controls Frequency 100 MHz Amplitude 25 dBm RF output On b Hook up the generator Connect the generator output through a 50 Q N N coaxial cable to the analyzer INPUT See the following figure RSA3408A i YU Signal generator 00000000 00 a 00 00 Output 50 N N coaxial cable c Initia
101. b 9 8 Press the Sensor Cal side key to perform zero adjustment and calibra tion for the sensor RSA3408A Service Manual Adjustment Procedures 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 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 15 saved to the file s on the floppy disk sgrflflatness cal for the baseband and RF1 band serf2flatness cal for the RF2 band sgrf3flatness cal for the band NOTE These three files are dedicated to the RSA3408A analyzer Do not use the files for other instruments 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 RSA3408A Service Manual 5 9 Adjustment Procedures Self Calibration Gain Calibration Perform these routines to optimize the analyzer performance m Gain calibration m Center offset calibration m DC offset calibration Each item is explained in this section Equipment None Required Prerequisites Power
102. bandwidth 40 MHz to 3 5 GHz BB RF1 Performs the selected calibration in the baseband and RF1 bands Measurement bandwidth 1 MHz to 3 5 GHz RF2 RF3 Performs the selected calibration in the RF2 and RF3 bands Measurement bandwidth 3 5 GHz to 8 GHz RF1 RF2 RF3 Performs the selected calibration in the RF1 RF2 and RF3 bands Measurement bandwidth 40 MHz to 8 GHz Config Sets the signal generator manufacturer and the GPIB address m SG Type Selects the manufacturer of the generator for the GPIB command system HP or Anritsu NOTE The HP setting also supports Agilent and Rohde amp Schwarz products m SG Address Sets the GPIB address for the signal generator Item 1 2 or 3 m Modulation SG Address Sets the GPIB address for the modulation signal generator Item 4 AWG Address Sets the GPIB address for the waveform generator Item 5 RSA3408A Service Manual Adjustment Procedures 10 MHz Reference Equipment One signal generator Item 1 or 3 panetauon One frequency counter Item 6 One 50 BNC coaxial cable Item 9 One 50 N N coaxial cable Item 10 One GPIB cable Item 11 One RF attenuator Item 13 Prerequisites Refer to page 5 1 Warm up the analyzer for more than 20 minutes and the frequency counter for more than 24 hours 1 Prepare for the calibration See the following figure for the hookup
103. ce 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 XV Introduction Xvi RSA3408A Service Manual Specifications END Z i 3 s y h D l l l 8 Specifications This section contains the RSA3408A 8 GHz Real Time Spectrum Analyzer 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 vibration within the operating limits described in these specifications m The analyzer must have had a warm up period of at
104. d Check against limits Confirm that the residual signal level is 90 dBm or less 4 47 Performance Tests 4 Check residual response in the RF 2 band a Modify the analyzer controls m Press FREQUENCY CHANNEL key on the front panel m The Center Freq menu item is selected by default Set the frequency to 5 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 the marker readout Confirm that the residual signal level is 85 dBm or less within the whole bandwidth 5 Check residual response in the band a Modify the analyzer controls m Press the FREQUENCY CHANNEL key on the front panel m The Center Freq menu item is selected by default Set the frequency to 6 5 GHz using the numeric keypad b 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 4 48 RSA3408A Service Manual Performance Tests Check Spurious Response Equipment Required One signal generator Item 2 or 3 One 50 coaxial cable Item 11 Prerequisites Refer to page 4 10 l Prepare for the test a Initialize the analyzer Press the SYSTEM key on the front panel Press the Reset All to Factory Defaults side key b M
105. d b Remove the four screws securing the A71 board to the main chassis Lift up the board away Reinstallation Reverse step 3 to reinstall the A71 board 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 7 on page 6 17 Orient the analyzer Set the analyzer so its top is down on the work surface and its front side is facing you Remove the power supply 3 See Figure 6 25 Also see Figure 6 38 page 6 76 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 Reinstallation Reverse step 3 to reinstall the power supply 3 RSA3408A Service Manual Removal and Installation Procedures W93 to J110 J130 W95 J100 Jno 9 9 To J120 8 on on A71 FU To J100 on A71 Figure 6 25 Power supply modules removal RSA3408A Service Manual 6 49 Removal and Installation Procedures Line Filter 1 Principal Power Switch 1 6 50 Assemble equipment and locate module to be removed a Have a screwdriver with Phillips 1 and 2 tips handy Items 1 2 and 3 b Locate the line filter in the locator diagram Bo
106. dules m RF3 module RF6 module m RF4 module Procedures for m CPU board m A62 Front connection CPU board and m Hard disk drive board disk modules m Floppy disk drive m Removable hard drive Option 06 only Procedures for m A10 A D board m A50 Mother board mother board and m A40 DIFP board m A70 DC power board daughter boards Procedures for m Power supply 1 m A71 AC power board power supply modules m Power supply 2 Line filter the instrument bottom Power supply Principal power switch Procedures for A100 Cal generator Band relay RF1 modules board Bandpass filter YTF on the instrument bottom m Step attenuator Input relay m Front panel assembly A60 Front key board m Front bezel m A61 Power switch m Menu buttons board m Front panel m FF input connector m Rotary encoder m Preamp power Procedures for front panel modules m LCD display connector Procedures for m Fan m Board guide bracket 6 62 chassis modules Side panel assembly 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 Item Tekt
107. e RSA3408A Service Manual 6 33 Removal and Installation Procedures Disk bracket Hard disk drive Shield bracket J122 J120 J900 S J1 06 m 1 p m BE J102 gt 28 HDD 62 J112 Front connection board Floppy disk drive J114 J110 0000000000 0000000000 J100 J104 Figure 6 17 Disk module removal 6 34 A62 Front connection board RSA3408A Service Manual Removal and Installation Procedures Floppy Disk Drive 1 Assemble equipment and locate module to be removed a You will need a screwdriver with 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 on 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 conn
108. e 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 22 161 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 A3 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 75MM 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 MARK SAFETY CONTROLLED OPTION A6 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 1617 XX 1 MANUAL TECH USER ENGLISH 077 0003 XX 1 MANUAL TECH PROGRAMMER ENGLISH OPTIONAL ACCESSORIES 071 1691 XX 1 MANUAL TECH SERVICE ENGLISH 10 32 RSA3408A Service Manual
109. e module level 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 Specifications contains a description of the analyzer and the applicable characteristics Operating Information includes general information and operating instruc tions 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 cleaning module removal and installation and fault isolation to the module Options contains information on servicing factory installed options Electrical Parts List contains a statement referring you to Mechanical Parts List where both electrical and mechanical modules are listed Diagrams contains a block diagram and an i
110. e and its front is facing you Remove the RF input connector See Figure 6 30 a Using a 6 inch wrench disconnect SMA cable W101 at RF INPUT See Figure 6 38 on page 6 76 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 Reinstallation Reverse step 3 to reinstall the RF input connector Assemble equipment and locate module to be 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 on page 6 19 c Remove the front panel assembly refer to the Front Panel Assembly procedure on page 6 56 RSA3408A Service Manual Removal and Installation Procedures To J700 on the Mother board Figure 6 30 LCD display removal RSA3408A Service Manual Orient the analyzer Set the analyzer so its bottom is down on the work surface and its front is facing you Remove the inverter See Figure 6 30 a Unplug the cables at CN1 and CN2 on the inverter b Remove the two screws securing the inverter to the front sub panel Remove the LCD display See Figure 6 30 a Unplug the cables at and CN2 on the inverter
111. e auto calibration m Store calibration factors in the power meter m Prepare the flatness correction file for the signal generators RSA3408A Service Manual 5 3 Adjustment Procedures Storing Cal Factors in the Power Meter 5 4 If you use an Agilent 437B power meter to create flatness correction files for the signal generators Item 1 2 and 3 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 Equipment Required One power meter Item 7 One GPIB cable Item 11 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 on the 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 These information is described on the surface of the power sensor except the sensor ID number which you specify Enter the calibration factors for the test or adjustment frequency range An example is shown below frequency range 0 1 to 9 GHz NO 2
112. e file selection dialog box appears Enter the file name and then press the Open button The calibration factors are stored in the power meter 5 5 Adjustment Procedures Making Flatness Correction Files 5 6 The auto performance verification and calibration need flatness floppy disks for the signal generators Item 1 2 and 3 The following procedure measures 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 m 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 m 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 2 or 3 Required One power meter Item 7 One power sensor Item 8 One N N cable Item 10 Two GPIB cables Item 11 One 10 dB attenuator Item 13 One N adapter Item 14 One floppy disk Item 17 Prerequisites When using a power meter other than the Agilent 437B select HP437B for the GPIB command set For selecting the programming language refer to the operation manual of the instrument NOTE This procedure measures flatness correction data for low band baseband and RFI or high band RF2 and which can be selected in the menu When you use
113. e 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 NOTE Enabling Auto Calibration see Figure 5 5 allows the analyzer to run the center offset calibration automatically when analyzer settings change 5 12 RSA3408A 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 offset 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 All side key RSA3408A Service Manual 5 13 Adjustment Procedures Auto Calibration Service Cal Menu Calibration table 5 14 The auto calibration uses internal routines to adjust gain flatness and spurious of the analyzer It is divided into four groups due to signal connections m 10 MHz reference calibration m All band calibration
114. e signal is output from the REF OUT connector on the rear panel Displayed signal frequency shifts for an external reference source An external IQ signal is not displayed or the 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 RF1 band does not work RF2 or band does not work Possible faulty module A40 DIFP board A40 DIFP board RF5 module RF5 module A10 A D board RF3 module or RF4 module A40 DIFP board A10 AD or A40 DIFP board RF3 module or RF4 module A40 DIFP board A100 Cal generator board or RF4 module A50 Mother board or A70 DC power board
115. eable 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 in 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 RSA3408A Service Manual 10 3 Replaceable Parts Replaceable parts list Fig amp index number 10 1 1 E 28 4 5 6 27 8 9 10 4 Tektronix part number 200 A524 XX 348 A152 XX 211 A039 XX 348 A150 XX 384 A223 XX 437 A013 XX 437 0508 XX 211 A004 X
116. ect the test equipment a Disconnect the cable from the analyzer input b Turn off the analyzer and generators c Disconnect the GPIB cables from all the ports 5 26 RSA3408A Service Manual Adjustment Procedures Reconfiguration of RF Modules The following procedures update the down converter configuration file when replacing the RF3 module and or YTF unit 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 Equipment One signal generator Item 1 Required One 50 N N coaxial cable Item 10 1 Modify the RF3 DAC setting a b Press the CAL key on the front panel Press the side key Service Password Enter 270833 and then press ENTER using the numeric keypad Press the side key DEBUG YTO Tune DAC Press the Gain side key and enter the gain of the RF3 module Press the Offset side key and enter the offset of the RF3 module 2 Prepare for the adjustment a Set the signal generator controls Frequency 1500 MHz Amplitude 10 dBm RF Output On b Hook up the signal generator Connect the generator output through a RSA3408A Service Manual 50 Q N N coaxial cable to the analyzer INPUT See Figure 5 9 5 27 Adjustment Procedures RSA3408A
117. ects 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 on page 6 14 2 Remove the 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 RSA3408A Service Manual 6 35 Removal and Installation Procedures 6 36 Removable Hard Drive Option 06 For Option 06 removable hard drive use the following procedure to remove the disk modules 1 Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items 1 and 3 plier Item 17 and 5 mm wrench Item 11 b Locate the module in the Removable hard disk modules Option 06 diagram Figure 6 5 on page 6
118. einstall feet reinsert the two retainers into their slots in the cabinet and snap into place Reinstallation If any flip stand feet were removed reinstall as directed in step 6c 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 the handle caps if removed and then the handle 6 25 Removal and Installation Procedures Push down to flex handle and flatten against cabinet then pull it out Handle cap removal Handle removal Flip stand removal Foot removal lt Figure 6 14 Cabinet modules removal 6 26 RSA3408A Service Manual Removal and Installation Procedures Procedures for RF Modules RF2 Module RF3 Module RSA3408A Service Manual Read the Access Procedure on page 6 21 before proceeding The procedures are presented in the following order 1 RF2 module RF3 module RF4 module RF5 module RF6 module Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items 1 and 3 and a inch wrench Item 13 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 37 on page 6 75 for the cable interconnection a Using a 6 inc
119. ely use the analyzer features m The RSA3408A Programmer Manual explains how to use the GPIB interface to remotely control the analyzer RSA3408A Service Manual Introduction This manual contains information needed to properly service the RSA3408A 8 GHz Real Time Spectrum Analyzer 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 ix m Read the RSA3408A User Manual Tektronix part number 071 1617 xx for operating information When using this manual for servicing be sure to follow all warnings cautions and notes Performance Check Interval Strategy for Servicing RSA3408A Service Manual 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 replacement If the analyzer does not meet performance criteria repair is necessary 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 man
120. emoved a You will need a 2 Phillips screwdriver Items and 3 b Locate the A10 A D board in locator diagram Mother board and daughter boards Figure 6 6 on page 6 16 Orient the analyzer Set the analyzer so its bottom is down on the work surface and its front is facing you Remove the board support bracket See Figure 6 22 on page 6 43 Remove the two screws securing the board support bracket to the rear support bracket and the RF6 module Lift the board support bracket away Remove the AIO A D board See Figure 6 22 Also see Figure 6 37 on page 6 75 for the cable interconnection a Unplug the SMB cables W360 W610 and W611 b Option 03 only Unplug the SMB cables W42 I IN W43 I IN W44 Q IN and W45 Q IN c Lift up the the A10 board Reinstallation Reverse steps 4 to reinstall the A10 board and interconnect cables Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items 1 and 3 b Locate the A40 DIFP board in locator diagram Mother board and daughter boards Figure 6 6 page 6 16 c Do step 3 in the A70 A D Board procedure on page 6 41 to remove the board support bracket 6 41 Removal and Installation Procedures A70 DC Power Board 6 42 Orient the analyzer Set the analyzer so its bottom is down on the work surface and its front is facing you Remove the A40 DIFP board See Figure 6 22 Also see Figure 6 37 on pa
121. er 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 RSA3408A Service Manual 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 5 1 Adjustment Procedures Equipment Required Table 5 1 Test equipment Item number and description 1 5 2 Signal generator Signal generator Signal generator Signal generator Waveform generator Frequency counter RF power meter 2 RF power sensor 2 BNC cable five required N N cable GPIB cable three required Terminator two required RF attenuator N adapter 2 Table 5 1 lists the test equipment requi
122. er Items 1 and 3 b Locate the side panel assembly in the Chassis modules locator diagram Figure 6 10 on 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 RSA3408A Service Manual Removal and Installation Procedures 4 Remove the side panel assembly See Figure 6 31 a C Remove the three screws securing the shield bracket through side panel to the main chassis Remove the two screws securing the side panel to the main chassis Pull the side panel away Pull out the stopper bracket to complete the removal S Reinstallation Reverse steps and 4 to reinstall the side panel assembly AUD Fan P d d To J300 on A70 d otopper bracket To J302 on A70 2 A dd 4 a px P di P d SQ A P d 2 SSS eS P Figure 6 31 Fan and side panel removal RSA3408A Service Manual lt Side panel 6 63 Removal and Installation Procedures Board Guide Bracket 1 Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items 1 and 3 b Locate the board guide bracket in the Chassis
123. eral purpose knob 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 Check noise at 2 GHz in the RFI band a Modify the analyzer control m Press the FREQUENCY CHANNEL key on the front panel The Center Freq menu item is selected by default Set the frequency to 2 GHz using the general purpose knob m Press the AMPLITUDE key on the front panel m The Ref Level menu item is selected by default Set the level to 50 dBm using the general purpose knob m Press the RF Atten Mixer side key to select RF Att m The RF Att menu item is selected by default Set the attenuation to 0 dB using the general purpose knob 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 Check noise at 3 GHz in the RFI band a Modify the analyzer control m Press the FREQUENCY CHANNEL key on the front panel m The Center Freq menu item is selected by default Set the frequency to 3 GHz using the general purpose knob 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 RSA3408A Service Manual Performance Tests 5 Check noise at 7 GHz in the band a Modify the analyzer control m Press the FREQUENCY CHANNEL key on the front panel The Center Freq menu item is selected
124. ernal trigger signal input is used in addition as the timing reference signal for the address control ler The A40 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 are 5 V 15 V 15 V 24 V the Power Supply 2 output voltages are 5 V 12 V 12 V 43 3 V 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 RSA3408A Service Manual Theory of Operation Standby Power and On Standby Switch A50 Mother Board External Interface A60 Front Key Board A62 Front Connection Board RSA3408A Service Manual Power Supply 3 is the standby power supply unit which continuously supplies power to some areas of the CPU board and the 10 MHz Refe
125. ess RF1 1GHz PASS Begn 2005 04 27 13 17 09 IF Flatness RF1 2GHz PASS End 2005 04 27 13 43 28 REGIMES IF Flamess RF1 3GHz PASS IF Flamess RF2 SGHz PASS IF Flatness RF3 6GHz PASS RF Flatness RF1 PASS RF2 RF Flatness RF2 PASS loe RF Flatness RF3 PASS Spurious RF i FAIL 3 Spurious RF2 FAIL 1 Config PV Spurious py Figure 4 7 Performance test result display 6 Disconnect the test equipment a Disconnect the cable from the analyzer input b Turn off the analyzer and generators c Disconnect the GPIB cables from all the ports Performs the auto tests using two signal generators Item 1 that covers the baseband and RF1 band and Item 2 that covers the RF2 and bands Equipment Two signal generators Item 1 and 2 ueque One 50 Q N N coaxial cable Item 11 One 10 dB attenuator Item 14 One GPIB cable Item 13 two required One SG flatness floppy disk Item 16 two required Prerequisites Refer to page 4 10 RSA3408A Service Manual Performance Tests Signal generator Item 2 1 Prepare for the test Hook up the equipment as shown in the following figure RSA3408A Service Manual GPIB cable GPIB cable OO ooo RSA3408A COO CUO Signal generator Item 1 JO OUI JO C OOOO OOOO OOOO
126. f any tests fail go to When the Auto Tests Fail on page 4 19 Change the signal generator a Disconnect the cable from the signal generator Item 1 output b Connect the N N cable to the signal generator Item 2 output c Set the GPIB address of the generator m Press the Config side key m Press the SG Type side key to select the manufacturer of the generator Item 2 for the GPIB command system HP or Anritsu m Press the GPIB Address side key and set the generator address m Press the Cancel Back top side key Perform the tests in the RF2 and RF3 bands Press the RF2 RF3 side key to perform the tests Check the test results Check the pass fail results displayed on the lower left of the screen see Figure 4 7 on page 4 16 If any tests fail go to When the Auto Tests Fail on page 4 19 Disconnect the test equipment a Disconnect the N N cable from the analyzer input b Turn off the analyzer and generators c Disconnect the GPIB cables from all the ports RSA3408A Service Manual Performance Tests When the Auto Tests Fail RSA3408A Service Manual If any test results in Fail see Figure 4 7 on page 4 16 perform calibration referring to Auto Calibration on page 5 14 and then perform the auto tests again 1 Perform the auto calibration for the failed test item as shown in Table 4 5 Table 4 5 Procedure for failed test item Failed test item BB Flatness IF Flatness RF1 40
127. g 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 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 To prevent getting moisture inside the analyzer during external cleaning use only enough liquid to dampen the cloth or applicator RSA3408A 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
128. ge 4 28 to set up the power meter and sensor 2 Set the signal generator output a Hook up the instruments Connect the signal generator Item 1 output through a 50 2 N N coaxial cable to the power sensor input See the figure below Signal generator Power meter Power sensor b Set the signal generator controls Freguenty Saas rre dera 100 MHz Leyel 222x583 seen aces 10 dBm 4 36 RSA3408A Service Manual Performance Tests RSA3408A Service Manual 3 Determine the reference power in 0 to 30 dBm a Measure the power and record it as PrO b Set the signal generator amplitude to 0 to 30 dBm in 10 dB steps and measure the power as 1 to 4 respectively Signal generator amplitude Reference power 10 dBm Pr0 0 dBm Pri 10 dBm Pr2 20 dBm Pr3 30 dBm Pr4 4 Modify the hookup a Connect the generator output through 50 Q coaxial cable to the spectrum analyzer Item 5 input See the following figure Spectrum analyzer Signal generator 50 N N coaxial cable b Set the signal generator control Amplitude 30 dBm Set the spectrum analyzer controls Measurement mode SA mode Reference level 20 dBm Center frequenc
129. ge 6 75 for the cable interconnection a Unplug the SMB cables W46 TRIG OUT and W47 TRIG IN b Lift up the the A40 board Reinstallation Reverse step 3 to reinstall the A40 board and interconnect cables Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items and 3 b Locate the A70 DC power board in locator diagram Mother board and daughter boards Figure 6 6 on page 6 16 c Do step 3 in the A70 A D Board procedure on page 6 41 to remove the board support bracket Orient the analyzer Set the analyzer so its bottom 1s down on the work surface and its front is facing you Remove the rear support bracket See Figure 6 22 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 Lift the bracket away Remove the A70 DC power board See Figure 6 22 a Unplug the fan power cable from J300 and J302 b Unplug the cable W75 GPIB from J410 c Liftup the A70 board Reinstallation Reverse step 3 to reinstall the A70 board and interconnect cables RSA3408A Service Manual Removal and Installation Procedures T Option 03 onl i W360 wae SY Board support bracket W43 NU W610 x W611 x x gt 220 W44 AE x W45 Ses 2 cA Rear support bracket AE 227 10 A D board
130. generator ranging from to 30 f Insert the SG flatness floppy disk Item 16 for the generator to the floppy disk drive of the analyzer 2 Perform the self calibration Press CAL Calibrate All 3 Enter the PV menu a Press Service Password in the CAL menu b Input 270833 and then press ENTER using the numeric keypad c Press the PV side key d Set the GPIB address of the generator m Press the Config side key m Press the SG Type side key to select the manufacturer of the generator for the GPIB command system HP or Anritsu m Press the SG Address side key and set the generator address m Press the Cancel Back side key 4 Perform the tests in all bands Press the All Band side key to perform the tests NOTE You can select the test items and bands as described in PV Menu on page 4 12 S Check the test results Check the Pass Fail results displayed on the lower left of the screen see Figure 4 7 If any tests fail go to When the Auto Tests Fail on page 4 19 RSA3408A Service Manual 4 15 Performance Tests Procedure 2 4 16 Tektronix RSA 3408A 4 27 2005 1 50 07 PM PAUSE MACRO SETUP Cancel Back PV Select A1 2 222 5 kHz Marker 8 0002225 GHz All Spurious Other 81 538 dB 94 291 dBm ET 10 dBm All Band 10 BB 110 dBm Center 8 GHz Span 2 MHz Performance Verification lM Spurious PV RF3 BB Flatness PASS BB RF1 IF Flatness RF1 400MHz PASS PUS A IF Flatn
131. generator board refer to the A700 Cal Generator Board procedure on page 6 51 See Figure 6 27 for the following steps 4 through 6 Also see Figure 6 38 on page 6 76 for cable interconnection 4 Remove the band relay a Using a 1 Phillips screwdriver remove the two screws securing the band relay to the bracket Using 6 inch wrench disconnect the SMA cables W121 W123 and W124 from the band relay Disconnect the cable W114A from the band relay 6 53 Removal and Installation Procedures 5 Remove the bandpass filter YTF a Using an SMA torque driver disconnect the SMA cables W106 and W123 from the 3 dB attenuators at both sides of the bandpass filter b Using inch wrench disconnect the 3 dB attenuators from the filter c Unplug the cable W115 from the A150 interface board d Using a 1 Phillips screwdriver remove the two screws securing the bandpass filter to the YTF plate Lift up the filter with the plate e Using a No 2 Pozidriv screwdriver remove the four screws securing the bandpass filter to the plate f Unsolder the A150 interface board at four points to remove it from the bandpass filter When removing the A150 YTF interface Ke board unsolder it at four points W123 pans lt lt gt wus D P Bandpass filter YTF Se E A W119 Jus W120 Input relay Figure 6 27 RF1 modules removal 2 6 54 RSA3408
132. h wrench disconnect the SMA cable W201 on the RF2 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 Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items 1 and 3 an SMA torque driver with a long type bit Items 6 and 7 and 6 inch wrench Item 13 b Locate the RF3 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 6 27 Removal and Installation Procedures RF4 Module 6 28 Remove the module See Figure 6 15 Also see Figure 6 37 on page 6 75 for the cable interconnection a Using a 6 inch wrench disconnect the SMA cable W201 on the RF3 module b Using a SMA torque driver with a long type bit Item 6 and 7 disconnect the SMA cable W105 on the RF3 module c Using a 6 inch wrench disconnect SMA cable W106 on the module d Unplug the SMB cables W26 W27 and W307 on the RF3 module e Unplug the cable W28 on the RF4 module not on the RF3 because the connector is hard to reach from the top f Remove the two screws securing the module to the main chassis Lift the module up Reinstallation Reverse step 3 to
133. he tests in this section make up an extensive valid confirmation of performance 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 m 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 Equipment Required These procedures use external traceable signal sources to directly check warranted characteristics The required equipment list is shown in Table 4 3 Table 4 3 Test equipment Item number and description Minimum requirements Purpose 1 Signal generator Frequency range 10 kHz to 3 5 GHz Agilent 8648D Checking flatness in Variable amplitude from 70 dBm to baseband and RF1 113 dBm into 50 C Accuracy lt 1 dB Function FM 2 Signal generator Frequency range 10 MHz
134. ical Characteristics Table 1 20 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 20 kg Environmental Characteristics Table 1 21 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 20 G half sine 11 ms duration Cooling clearance Three shocks in each direction along each major axis total of 18 shocks Bottom 20 mm 0 79 in Both sides 50 mm 1 97 in Hear 50 mm 1 97 in 1 16 RSA3408A Service Manual Specifications Table 1 22 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 IEC 61000 4 2 Electrostatic discharge immunity Perf
135. ier 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 RF3 band a Modify the generator control Frequency 7 GHz b Modify the analyzer controls m Press the FREQUENCY CHANNEL key on the front panel The Center Freq menu item is selected by default Set the frequency to 7 GHz using the numeric keypad c 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 RSA3408A Service Manual 4 23 Performance Tests Check 10 MHz Reference Equipment One frequency counter Item 6 Output Accuracy equine One 50 Q BNC coaxial cable Item 10 One 50 terminator Item 15 Prerequisites Refer to page 4 10 The frequency counter must have been operating for a warm up period of at least 24 hours 1 Prepare for the test a Hook up the frequency counter Connect REF OUT on the rear panel of the analyzer through 50 Q precision coaxial cable and a 50 Q precision terminator to Channel 1 of the counter See the following figure RSA3408A rear fe CMM 06 00 093 09 00 9 0
136. ignal Processing A10 A D Board A40 DIFP Board RSA3408A Service Manual 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 A40 DIFP board via the A50 Mother board The A D board contains input circuits for three analog signals IF signal baseband signal and external IQ 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 Lowpass Filter for removal of signal components within unnecessary frequency bands The A40 DIFP Digital IF Processor board consists of an IQ Splitter Digital Filters Trigger Detector and Acquisition Memory After being converted into digital format in the A10 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 corresponding 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 Trigger Detector and Acquisition Memory 3 3 Theory of Operation Power Supply 3 4 Power Supply 1 and 2
137. index number 10 10 1 2 10 22 Tektronix part number 174 C038 XX 211 A273 XX 148 A079 XX 174 C040 XX 211 0871 XX 119 A960 XX 671 5867 XX 119 7080 XX 386 744 1 XX 211 0661 XX 407 5030 XX 211 0871 XX 174 5059 XX 174 B944 XX 211 0871 XX 174 B811 XX 174 C013 XX 174 5058 XX 174 C009 XX 671 5866 XX 119 7079 XX 211 0871 XX 386 7434 XX 348 0949 XX 174 B949 XX 174 C041 XX Serial No effective Serial No discont d Gty Name amp description CABLE ASSY RF SEMI RIGID W121 ATT TO SW SCREW MACHINE M2 5X18 L PNH STL NI PLCROSS REC W FLAT KOGATA amp LOCK WASHER RELAY COAX COIL 12V DC 18GHZ IL 0 5DB VSWR 1 5 SMA CONN CABLE ASSY RF SEMI RIGID W123 SW TO YTF SCREW MACHINE M3X6MM L PNH STL MFZN C CROSS REC W FLAT amp LOCK WASHER ATTENUATOR FXD 3DB DC 8GHZ 50 OHM 1W SMA CONN CIRCUIT BD ASSY A150 I F 389 3634 00 WIRED YTF UNIT YIG FILTER 3 5 8GHZ 6STAGE 60MHZ BW 6DB LOSS 20MHZ MA 30 5 SQ X 14 2H SMA PLATE YTF MECHANICAL PART AL 55 4 X 33 4 X T1 6 MM FOR SPACER SCREW MACHINE 4 40 X 0 25 PNH STL CD PL POZ SEMS BRACKET RF1 AL SCREW MACHINE M3X6MM L PNH STL MFZN C CROSS REC W FLAT amp LOCK WASHER CA ASSY RF SEMI RIGID 500HM SX 36 SMA P SMA P SW ATT CABLE RF SEMI RIGID W101 N CON TO SW SCREW MACHINE M3X6MM L PNH STL MFZN C CROSS REC W FLAT amp LOCK WASHER CABLE ASSY RF 50 OHM COAX 1 5D 2W SMB SMB L 55CM L W17 CABLE ASSY RF 50 OHM COAX 25CM L 1 5D QEW SMB L TO SMA L CA ASSY SP ELEC SW
138. ither of these two procedures by the signal generator s you use m Procedure below Uses one signal generator Item 3 that covers all measurement bands Baseband RF2 and m Procedure 2 on page 4 16 Uses two signal generators Item 1 that covers the baseband and RFI band and Item 2 that covers the RF2 and RF3 bands Procedure 1 Performs the auto tests using one signal generator Item 3 that covers all measurement bands Baseband RF1 RF2 and RF3 Equipment One signal generator Item 3 50 N N coaxial cable Item 11 One 10 dB attenuator Item 14 One GPIB cable Item 13 One SG flatness floppy disk Item 16 Prerequisites Refer to page 4 10 1 Prepare for the test See the figure below for the hookup RSA3408A Signal generator coo oo E a eae 9 GPIB cable ES Sooo Il y Output 10 dB attenuator 50 N N coaxial cable RSA3408A Service Manual Performance Tests a Power off the RSA3408A analyzer and the signal generator b Connect the analyzer and the generator with a GPIB cable Connect the analyzer INPUT through a 10 dB attenuator followed by a 50 Q N N coaxial cable to the generator output d Power on the analyzer and the generator e Set the GPIB address of the
139. le Parts Figure 10 6 Disk modules 10 15 RSA3408A Service Manual Replaceable Parts Replaceable parts list Fig amp index Tektronix Serial No Serial No number part number effective discontd Qty amp description 10 7 OPTION 06 ONLY 1 211 A170 XX 4 SCREW MACHINE M3X15MM L PNH STL ZN CM1 W M PLAIN amp SPLIT WASHER 2 210 0949 XX 4 WASHER FLAT 0 141 ID X 0 5 OD X 0 062 BRS NP 3 210 A014 XX 4 WASHER PLAIN 6 BRS NI PL 4 129 A593 XX 4 SUPORT PS 308 5 348 A144 XX 4 DUMPER 6 407 5104 XX 1 BRACKET FDD amp HDD INSIDE 7 671 6095 XX 1 CIRCUIT BD ASSY A65 HDD CONNECTION LOWER 389 3793 XX WIRED 8 214 5084 XX 2 PIN EXT HDD CONNECTOR BOARD 9 220 0269 XX 2 NUT LOCATE PIN 10 211 0497 2 SCREW MACHINE M3 X 5MM PNH STL ZN PL 11 210 A015 XX 2 WASHER LOCK 23 SPLIT STL MFZN C AWG400 12 407 5115 1 BRACKET STOPPER HDD CON BD RIGHT 13 407 5116 1 BRACKET STOPPER HDD CON BD LEFT 14 198 5868 1 WIRE KIT ELEC FLAT amp RIBBON W A64 BRACKET SLEEVING RSA3408A OPT06 15 407 5105 1 BRACKET FDD amp HDD OUTSIDE BACK 16 348 143 7 GASKET SHIELD FINGER TYPE 15 2MMW X 5 6MMH X 7 2MML 17 211 0751 2 SCREW ASSY WSHR MS X 8 PAN W FLAT amp LOCK WASHER 18 407 5114 XX 1 BRACKET CABLE MOUNT HDD 19 211 1028 XX 2 SCREW MACHINE M4 X 8MML PNH STL MFZN C CROSS REC W
140. least 20 minutes RSA3408A Service Manual 1 1 Specifications Electrical Characteristics Table 1 1 Frequency Characteristics Description Measurement frequency Frequency range Overall DC to 8 GHz Center frequency setting resolution V Frequency marker readout accuracy Residual FM Typical Span accuracy RBW filter bandwidth accuracy Reference frequency Aging per day Aging per year Temperature drift Total frequency error Reference output level External reference input Baseband DC to 40 MHz RF1 40 MHz to 3 5 GHz RF2 3 5 GHz to 6 5 GHz RF3 5 GHz to 8 GHz 0 1 Hz Baseband RE x MF 0 001 x Span 0 2 Hz RF1 to 3 RE x MF 0 001 x Span 2 Hz RE Reference frequency error MF Marker frequency Hz The first term RE x MF shows the frequency uncertainty due to the reference frequency error The second term 0 001 x Span shows the uncertainty due to the limited bin number Because more than 500 bins are available in the frequency display 0 5 bin uncertainty corresponds to 0 001 The third term is the residual FM 2 Hz p p 1 bin 0 196 against noise bandwidth 1 x 10 9 after 30 days of operation 1 1077 after 30 days of operation 1x 1077 10 to 40 C 2 x 10 7 within one year after calibration gt 0 dBm 10 MHz 10 to 6 dBm Spurious level must be lt 80 dBc within 100 kHz offset RSA3408A Service Manual Specifications Table 1 2 Noise sideband Characteristics
141. lize the analyzer m Press the SYSTEM key on the front panel m Press the Reset All to Factory Defaults side key RSA3408A Service Manual 4 33 Performance Tests Modify the default settings Press the FREQUENCY CHANNEL key on the front panel The Center Freq menu item is selected by default Set the frequency to 100 MHz using the numeric keypad Press the SPAN key on the front panel The Span menu item is selected by default Set the span to 10 MHz using the general purpose knob Press the AMPLITUDE key on the front panel The Ref Level menu item is selected by default Set the reference level to 20 dBm using the general purpose knob Press the RF Atten Mixer side key to select RF Att The RF Att menu item is selected by default 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 value be Po 3 Check the amplitude for the attenuation from 5 to 30 dB a b Press the RF Att side key and set the attenuation initially 5 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 is within x 0 5 dB Repeat substeps a through d for attenua
142. ls T Back bracket Front bracket Disk bracket Shield bracket VW a SN Tuc ary NAC j WO um UA UM Figure 6 5 Removable hard disk modules Option 06 6 15 RSA3408A Service Manual Removal and Installation Procedures A70 DC power board 22 A50 Mother board SS A10 AID board lt a A40 DIFP board Figure 6 6 Mother board and daughter boards RSA3408A Service Manual 6 16 Removal and Installation Procedures Power supply 1 Power supply 2 Insulator Shield bracket A71 AC power board p D o Power supply 3 Principal power switch Figure 6 7 Bottom modules Power supply 6 17 RSA3408A Service Manual A150 Removal and Installation Procedures RSA3408A Service Manual Step attenuator Attenuator plate A100 Cal generator board s gt 3 dB attenuator Bandpass filter YTF e plate 4 5 VT duae L dene 0 a ou E LP NES S gt E70 7 o l Ja g Z Z
143. m nutdriver remove the nut securing the rotary encoder to the front bezel S Reinstallation Reverse steps 3 and 4 to reinstall the rotary encoder and the general purpose knob RSA3408A Service Manual 6 57 Removal and Installation Procedures we from J810 on the Mother board When removing the A61 power switch board spread the catches on the left and right sides of the front bracket before pulling the board backward Front bracket A60 Front key board v Hrontpanelkeys yy removing the front bezel grasp its back edge and vigorously flex it upward before pulling it forward D a A 2 a f gt 2 2 2 J LC 28597 gau 02827 00282 2 Ae 34490590 2Z01 080880 e ee 242 05 5 gt 2 A a 22590 224 2 2 LI 2 22 Q 2 5 g LZ Iw To J60 the Mother board Figure 6 29 Front panel modules removal Front Bezel Menu Buttons 1 and Front Panel 6 58 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 on 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 29
144. mixed with the 2 d LO signal and frequency converted into the 2 d IF signal of approximately 421 MHz The same is true of 15t LO the 2nd LO frequency is controlled by a synthesizer circuit RF4 module to stabilize the LO output frequency The 2 IF signal is sent to the 2 d IF Filter which has two filters with the pass bandwidth of 40 MHz and 4 MHz respectively The RF5 module consists of the 3 Converter and the 3 IF Gain block In the 3rd converter the signal is mixed with the 3 d LO signal and then frequency con verted into the 3 IF signal of 76 MHz normally which is changed to 39 MHz in an ACLR measurement with the sweep mode In the RF2 and bands the 22d IF signal from the RF2 module enters the band switching relay in the input section of the 3 d Converter The 3 d IF Gain block consists of a Step Amplifier of 12 dB step with the maximum gain of 60 dB and a Step Attenuator with the maximum attenuation of 31 dB This block maintains the 3 IF signal to be sent to A D Converter at an appropriate level and adjusts the accuracy of conversion gain The RF6 module consists of the 3d IF Filter block Oscillator block and 10 MHz Reference Oscillator The 3 IF signal enters the 3 d IF Filter containing two filters with the pass bandwidth of 40 MHz for 76 MHz IF and 1 2 MHz for 38 MHz IF respectively which are software selectable The Oscillator block contains the 3 local oscillator with the local frequency of 345 MHz for 7
145. modules 10 11 RSA3408A Service Manual Replaceable Parts Replaceable parts list Fig amp index number 10 5 4 3 4 5 6 27 10 12 Tektronix part number 211 1028 XX 343 1644 XX 348 A120 XX 344 0472 XX 351 A165 XX 211 1028 XX 407 5027 XX 211 0871 XX 407 A684 XX 671 5855 XX 671 5845 XX 671 5848 XX 211 0871 XX 211 0871 XX 407 4988 XX 351 A165 XX 407 4987 XX 211 A171 XX 211 0871 XX 407 A690 XX 119 7135 XX 211 1028 XX 407 A683 XX 348 1276 XX 174 B983 XX 671 5849 XX 211 0871 XX 343 1644 XX Serial No effective Serial No discont d Gty N N A N 32 CM 25 Name amp 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 GUIDE CKT BD NYLON SCREW MACHINE M4X8MM L PNH STL ZN C PL CROSS REC W FLAT amp LOCK WASHER BRACKET STOPPER DIGITAL BOARD AL SCREW MACHINE M3X6MM L PNH STL MFZN C CROSS REC W FLAT amp LOCK WASHER BRACKET SUPPORT REAR CIRCUIT BD ASSY A70 DC POWER 389 B161 XX WIRED CIRCUIT BD ASSY A40 DIFP MEMORY 389361300 WIRED CIRCUIT BD ASSY A10 A D 389 3615 00 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 BRACKET STOPPER CPU BOARD GUIDE CKT BD NYLON BRACKET SUPPORT MEMORY SCREW MACHINE M3X12MM L
146. modules diagram Figure 6 10 on page 6 20 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 Daughter Modules on page 6 41 2 Orient the analyzer Set the analyzer so its bottom is down on the work surface and its left side is facing you press its catches on both sides before pulling it backward When removing the board guide lt Board guide bracket Figure 6 32 Board guide bracket removal 6 64 RSA3408A Service Manual Removal and Installation Procedures 3 Remove the board guide bracket Remove the four screws securing the board guide bracket to the main chassis Lift the bracket up and away 4 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 5 Reinstallation Reverse steps 3 and 4 to reinstall the board guide brackets Rear Panel 1 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 5 b Locate the rear panel in the Chassis modules diagram Figure 6 10 on page 6 20 2 Orient the analyzer Set the analyzer so its bottom is down on the work surface and its
147. n board Removable hard drive Option 06 Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver Items 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 1s down on the work surface and its front is facing you Remove the brackets See Figure 6 16 a Remove the two screws securing the board stopper bracket to the memory support bracket Lift the bracket away b Remove the two screws securing the memory support bracket to the disk bracket Lift the bracket away Remove the CPU board a Unplug the cables from FDD1 COMI IDEI USB CN2 and CN3 connectors on the CPU board b Unplug the cable from the J102 connector on the A63 DVO converter attached to the CPU board c Remove the two screws securing the board to the main chassis Lift the board up and away from the chassis Reinstallation Reverse step 3 and 4 to reinstall the CPU board 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
148. n 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 N 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 Ratio 10 dB impedance 50 C Inmet 18N 10 Checking flatness Bandwidth 8 GHz Mini Circuits BW S10W2 Impedance 50 Q connectors female Tektronix part number oignal termination for check BNC input male BNC output 011 0049 01 ing frequency accuracy Created or updated with the proce 3 5 inch 720 K or 1 44 MB Storing flatness correction dures described on page 5 6 DOS compatible floppy disk data for the signal generators Item 1 2 and 3 otandard accessary File operation Standard accessary File operation RSA3408A Service Manual 4 11 Performance Tests Auto Tests 4 12 Service PV Menu The auto tests use internal routines to verify specifications for the following characteristics m Baseband flatness IF flatness m RF flatness m Spurious Use the service PV menu and the procedure described below to set parameters and perform the tests Selects the PV performance verification test items and bands Access this menu by CAL Service Password 270833 PV see Figure 4 6 MACRO SETUP Cancel Back Pv Select All Spurious Other
149. n the work surface and its front is facing you Remove the front panel assembly See Figure 6 28 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 RSA3408A Service Manual Removal and Installation Procedures ae es G lt 2 Ce 2 p S QD uo TN lo Gg Co a Te c D 2828958 S 29 9999 CY v 0 89899 amp S amp SVS Q ag Figure 6 28 Front panel assembly removal Rotary Encoder 1 Assemble equipment and locate module to be removed a You will need a 12 mm nutdriver Item 8 and a inch hex wrench Item 12 b Locate the rotary encoder in Figure 6 9 on page 6 19 2 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 3 Remove the general purpose knob See Figure 6 29 Loosen the setscrew securing the knob using the 1 6 inch hex wrench Pull the knob away 4 Remove the rotary encoder See Figure 6 29 a Unplug the rotary encoder cable at J140 on the A60 Front key board b Using the 12 m
150. nalyzer to Q output of the generator Q INPUT of the analyzer to Q output of the generator e Power on the analyzer and the generator f Set the GPIB address of the generator ranging from 1 to 30 2 Enter the calibration menu a Press Service Password in the CAL menu b Enter 270833 and then press ENTER using the numeric keypad c Press the CAL side key d Set the GPIB address of the generator m Press the Config side key m Press the Modulation SG Address side key and set the address m Press the Cancel Back side key 3 Perform the IF flatness calibration in all bands a Press the Target Files side key to select All b Press the IF Flatness Wide IQ side key to run the calibration NOTE You can select the calibration items and bands as described in Service Cal Menu on page 5 14 4 Disconnect the test equipment a Disconnect the cable from the analyzer input b Turn off the analyzer and generator c Disconnect the GPIB cable from the generator 5 24 RSA3408A Service Manual Adjustment Procedures IQ Gain Calibration Equipment One waveform generator Item 5 Option 03 Only Required One 50 Q BNC coaxial cable Item 9 GPIB cable Item 11 Two 50 terminators Item 12 Prerequisites Refer to page 5 1 1 Prepare for the calibration See the following figure for the hookup RSA3408A rear eon generator e i stry gt a
151. nd Installation Procedures Access Procedure 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 Locate the module to be removed in Figure 6 2 to 6 10 Procedures for External Modules Line cord p 6 22 Yes Cabinet p 6 22 Front cushion p 6 23 Cabinet modules p 6 24 Is the module in Figure 6 2 No Do the procedures Line Cord and Cabinet on page 6 22 Procedures for RF Modules RF2 module Yes RF3 module RF4 module RF5 module RF6 module Is the module in Figure 6 3 No Procedures for CPU Board and Disk Modules CPU board p 6 31 Yes Hard disk drive p 6 33 in Figure Floppy disk drive p 6 35 6 4 A62 Front connection board 6 35 Removable hard drive Option 06 No p 6 36 Is the module Procedures for Mother Board and Daughter boards Yes A10 A D board p 6 41 Is the module in Figure 6 6 No A40 DIFP board p 6 41 A70 DC power board p 6 42 A50 Mother board p 6 44 Figure 6 11 Guide to removal procedures RSA3408A Service Manual the module in Figure 6 7 No the module in Figure 6 9 No Yes Yes Procedures for Power Supply on the Bottom Power supply 1 amp 2 A71 AC power board
152. ndicates 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 RSA3408A Service Manual 5 Z 3 l l i B L h l l l l Service Safety Summary RSA3408A Service Manual 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 Xi Service Safety Summary xii RSA3408A Service Manual Preface Manual Structure RSA3408A Service Manual This is the service manual for the RSA3408A 8 GHz Real Time Spectrum Analyzer This manual contains information needed to service the analyzer to th
153. nt 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 14 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 RSA3408A Service Manual Removal and Installation Procedures RSA3408A Service Manual Remove the handle caps a Insert the retaining ring pliers Item 15 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 d reinstall push the cap s back on 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 c To reinstall compress the flip stand and insert it into the flip stand feet 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 want to remove and lift it away from the outside of the cabinet c Remove as many of the feet as needed d To r
154. nterconnection diagram Mechanical Parts List includes a table of all replaceable modules their descriptions and their Tektronix part numbers xiii Preface Manual Conventions Modules Safety 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 is only one step 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 module Symbols and terms related to safety appear in the Safety Summary near the beginning of this manual Related Documentation XIV Other documentation for the RSA3408A analyzer Includes m The RSA3408A User Manual contains tutorial to quickly describe how to operate the analyzer It also includes an in depth discussion on how to more complet
155. o No Replace the CPU board Unplug the coaxial cable W611 on the RF6 module See Figure 6 37 Using another spectrum analyzer measure the output at the connector Yes Replace LCD display LCD inverter or A62 Front connection board the spectrum measured as follows Frequency 102 4 MHz Amplitude 6 5 dB No Replace RF6 module Unplug the coaxial cable W611 on Yes the RF6 module See Figure 6 37 Replace Using another spectrum analyzer MR Hard disk drive or measure the output at the connector A62 Front connection board the spectrum measured as follows Frequency 102 4 MHz Amplitude 6 5 dB NO Replace RF6 module Yes Replace A40 DIFP board or A50 Mother board Figure 6 35 Troubleshooting procedure 2 Display and CPU system RSA3408A Service Manual 6 69 Troubleshooting 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 10 Hz Amplitude 10 dBm Yes Unplug the coaxial cable W611 on the RF6 module See Figure 6 37 Using another spectrum analyzer Reconnect the W611
156. odify the default controls Press the SPAN key on the front panel The Span menu item is selected by default Set the span to 10 MHz using the general purpose knob Press the RBW FFT key on the front panel Press the RBW FFT side key to select Man The RBW menu item is selected by default Set the value to 50 kHz using the general purpose knob Press TRACE AVG Trace 1 Type Average Press the Number Of Averages side key and set the value to 50 Press the MARKER SETUP key Press the Markers side key to select Delta c Setthe generator controls d Hook up the signal generator Connect the generator output through 50 Q coaxial cable to the analyzer INPUT See the figure above on the next page RSA3408A Service Manual 4 49 Performance Tests RSA3408A Signal generator Output 50 N N coaxial cable 2 Check spurious response a Modify the generator controls Set the generator output frequency to the value as shown in Table 4 7 initially 25 MHz b Modify the analyzer controls Press FREQUENCY CHANNEL key on the front panel The Center Freq menu item is selected by default Set the frequency to the same value as the generator output using the numeric keypad c Measure the amplitude m
157. 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 the 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 yellow 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 Span Input Att Figure 5 4 UNCAL display To run the gain calibration follow the procedure on page 5 11 RSA3408A 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
158. ormance 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 Performance criterion A IEC 61000 4 11 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 Voltage 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 Safety requirements for electrical equipment for measurement control and laboratory use U S Nationally Recognized Testing Laboratory UL61010 1 Standard for electrical measuring and test equipment Listing Canadian Certification CAN CSA C22 2 No 61010 1 04 CSA safety requirements for electrical and electronic measuring and test equipment Additional Compliance ANSI ISA 82 02 01 2004 Safety standard for electrical and electronic test measuring controlling and related equipment IEC61010 1 oafety requirements for elec
159. 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 practices that could result in damage to this product or other property General Safety Summary Terms on the Product These terms may appear on the product DANGER indicates an injury hazard immediately accessible as you read the marking WARNING i
160. pply A70 DC power board Power supply 1 Power supply 2 Power supply 3 GPIB A63 DVO converter CPU board 60 Principal power A71 519 Mc Front connection Front panel key 8 4 LCD switch AC power board y board board ON STANDBY switch VGA HDD 3 5 FDD Figure 9 1 Block diagram RSA3408A Service Manual 9 3 RSA3408A Service Manual Q e 2ndIF Programmable d OUTPUT U 3 dB bandpass filter RF2 module RF5 module RF6 module Q e 10 MHz REF YTF T W123 W620 J output W101 1st 2nd 3rd ma 3rd Sum e EXT REF RF Input W120 Step W121 Band converter converter converter IF filter Internal aoe L INPUT INPUT relay attenuator y 10 MHz ref P pau W119 W115 CAL SIG 0 2 rela J200 J21 21 t A100 Cal generator board Hoo u was wz wat wz E Synthesizer I INPUT 9 c o O TRIGGER d OUTPUT O TRIGGER W46 L W43 l INPUT T 6 W44 A10 A D board A40 DIFP board W47 APE DIGITAL I A D W35 FFT Trigger Acquisition Hardware OUTPUT Digital filter W45 converter processor detector memory controller 9 DIGITAL Q Q INPUT J OUTPUT J950 952 am GPIB A50 Mother board PCI bridge J901 J900 J902 J911 J910 J912 J920 J700 J710 J60 J810 W86 W56 W54 CN1 J120 CN2 U82 LCD inverter A60 Front key board CN81 61 CN51 CN53 CN81 61
161. procedure consists of as many steps substeps and subparts as required to do the test Steps substeps and subparts are sequenced as follows 1 First Step a First Substep First Subpart m Second Subpart b Second Substep 2 Second Step m 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 tells you what to do and the instructions that follow tell you how to do it The example step below is telling you to set the analyzer controls by pressing the specified key sequence Set the RSA3408A analyzer controls Press MODE DEMOD gt Digital Demod Constellation STOP STOP is accompanied by information you must read to do the procedure properly 4 2 RSA3408A Service Manual Brief Procedures RSA3408A Service Manual The Functional Tests use the internal calibration signal as a test signal source for further verifying that the analyzer functions properly The Diagnostics use internal routines to verify that the instrument functions properly and passes the internal circuit tests The Functional Tests begin on page 4 4 and the Diagnostics procedures are on page 4 8 4 3 Brief Procedures Functional Tests 4 4 The analyzer has a buil
162. r 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 37 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 Assemble equipment and locate module to be removed a You will need a 2 Phillips screwdriver b Locate the RF6 module in the locator diagram RF Modules Figure 6 3 on 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 RF6 module See Figure 6 15 Also see Figure 6 37 on page 6 75 for the cable interconnection a Unplug the following SMB cables on the RF6 module 10 MHz REF IN and OUT W32 W503 W29 W611 W502 and W610 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 RSA3408A Service Manual Removal and Installation Procedures Procedures for CPU Board and Disk Modules Read the Access Procedure on page 6 21 before proceeding The procedures are presented in the following order CPU Board 1 RSA3408A Service Manual CPU board Hard disk drive Floppy disk drive A62 Front connectio
163. re listed as checked in Chapter 2 Specifications Table 1 4 on page 1 5 Check Absolute Equipment One signal generator Item 1 Amplitude Accuracy One power meter Item 7 One power sensor Item 8 One 50 N N coaxial cables Item 11 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 a Connect the power meter and the power sensor See the following figure Power meter Power sensor oe Sensor input b Warm up the power meter and sensor for more than 20 minutes c 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 8 on page 4 29 e Turn on POWER and execute the calibration f Disconnect the RF input of the power sensor from the reference output of the power meter 4 28 RSA3408A Service Manual Performance Tests Power meter rai Power reference output Figure 4 8 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 9 Signal generator
164. rear is facing you 3 Remove the SMB BNC connector See Figure 6 33 a Unplug the coaxial cable from the connector b Using a 1 Phillips screwdriver remove the four screws securing the connector to the rear chassis Pull the connector away SMB BNC connector Rear panel h GPIB connector MC E e Figure 6 33 Rear panel removal RSA3408A Service Manual 6 65 Removal and Installation Procedures 4 Remove the GPIB connector See Figure 6 33 a Unplug the cable at J410 on the A70 DC power board Refer to the A70 DC Power Board procedure on page 6 42 b Using a flat bladed screwdriver remove the two screws securing the connector to the rear panel Pull the connector away 5 Remove the rear panel a Using 1 Phillips screwdriver remove the four screws securing the digital I and Q output connectors to the rear panel b Remove the two screws securing the rear panel to the main chassis Lift the rear panel up and away from the chassis 6 Reinstallation Reverse steps 3 through 5 to reinstall the rear panel 6 66 RSA3408A Service Manual i Ae 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 following flo
165. red to adjust the RSA3408A analyzer Minimum requirements Purpose Frequency range 10 kHz to 3 5 GHz Agilent 8648D Adjusting flatness in baseband and RF1 Variable amplitude from 70 dBm to 13 dBm into 50 Accuracy lt 1 dB Function FM Frequency range 10 MHz to 8 GHz Output level 4 dBm to 10 dBm Accuracy lt 1 dB Agilent 83712B Adjusting flatness in RF2 and RF3 Frequency range 1 MHz to 8 GHz Output level 30 dBm to 10 dBm Accuracy lt 1 dB Frequency 6 GHz Output 20dBm Digital modulation QPSK Agilent E8257D Adjusting flatness in all bands Agilent E4438C with Options 506 up to 6 GHz UNJ enhanced phase noise and 602 baseband generator Tektronix AWG520 Adjusting wide IQ flatness Arbitrary waveform Function genera tor Two output channels Sampling frequency 50 kHz to 1 GHz Ampli tude range 20 mV to 2 V Adjusting IQ gain Option 03 only Frequency range 10 MHz Aging rate 5 x 10 1 day Accuracy lt 0 01 ppm at 10 MHz 1 MHz to 8 GHz Agilent 437B 3 Adjusting the signal generator Agilent E4418B 3 output level 10 MHz to 8 GHz RF Flatness 396 Agilent 8481A Adjusting the signal generator Agilent E4412A output level Agilent 53132A option 010 Checking the reference out put frequency accuracy Uncertainty of calibration factor data 296 RSS 50 36 in male to male BNC Tektronix part number oignal interconnection connectors 012
166. rence 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 service inside the unit 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 is also supplied to the 10 MHz Oscillator OCXO from Standby Power Supply unit The A50 Mother board distributes power to all boards and modules as well as interfacing of control signals and data with the CPU Other devices such as the PCI Bridge Local Bus Controller GPIB Control Circuit 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 The A62 Front Connection board interfaces with peripheral devices such as hard disk drive floppy disk drive LCD Liquid Crystal Display USB and keys with the CPU board 3 5 Theory of Operation 3 6 RSA
167. requisites Refer to page 4 10 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 RSA3408A JO OW JO OO JO OOO JCJ CJC JO OO e JOO oOoooo J OOOO 00 b Modify the analyzer controls RSA3408A Service Manual Press the FREQUENCY CHANNEL key on the front panel The Center Freq menu item is selected by default Set the frequency to 10 MHz using the general purpose knob Press the SPAN key on the front panel The Span menu item is selected by default Set the span to 1 MHz using the general purpose knob Press the AMPLITUDE key on the front panel The Ref Level menu item is selected by default 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 The RBW menu item is selected by default Set the value to 10 kHz using the general purpose knob 4 43 Performance Tests 4 44 B Press TRACE AVG Trace 1 Average m Press the Number Of Averages side key and set the value to 50 m Press MEASURE Channel Power MEAS SETUP m Press the Channel Bandwidth side key and set the value to 1 MHz using the gen
168. ronix No 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 size screw heads 4 No 2 Pozidriv tip Pozidriv driver bit for number 2 size screw heads 5 Flat bladed screwdriver Screwdriver for removing standard headed screws 6 SMA torque driver Accepts SMA hex head driver bits 003 1423 91 for SMA 3 5 mm connector I 15 Retaining ring pliers Standard tool 114 inch minimum throw 16 Angle tip tweezers otandard tool 18 Soldering iron Standard tool 19 Solder wick Standard tool 20 TRA CON Tra Bond BA 2114 6 10 RSA3408A Service Manual Removal and Installation Procedures Analyzer Orientation Figure 6 1 shows how the sides of the analyzer are referenced in this manual Rg o 221202 O 00000 00000 D0000 Figure 6 1 Analyzer orientation RSA3408A Service Manual 6 11 Removal and Installation Procedures Rear foot Cabinet Handle Foot Flip stand Line cord Front cushion A i 0009000 e 000090 DOOCO ODDDO OCOCO 060009 y a pr 220000 20000 OODUOD B ay Z 000000000 7 7 E A Foot pad Figure 6 2 External
169. rrr rs 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 Daughter Boards 6 41 Procedures for Power Supply Modules on the Instrument Bottom 6 46 Procedures for RF1 Modules on the Instrument Bottom 6 51 Procedures for Front Panel Modules 6 56 Procedures for Chassis Modules 6 62 Troubloshootia osa div CR ch ee Hehe ENS GOH pas ews CORSE 6 67 Troubleshooting Procedure 6 67 Symptoms and Faulty Modules 6 78 Required Adjustments After Replacing Modules 6 80 Options Electrical Parts List Diagrams Mechanical Parts List Replaceable Parts ees 10 1 Parts Ordering Information 10 1 Using the Replaceable Parts List 10 3 ii RSA3408A Service Manual Table of Contents List of Figures RSA3408A Service Manual Figure 1 1 Figure 1 2 Figure 4 1 Figure 4 2 Figure 4 3 Figure 4 4 Figure 4 5 Figure 4 6 Figure 4 7 Figure 4 8 Figure 4 9 Definition of the setup and hold time
170. rvice Manual Adjustment Procedures IF Flatness Wide IQ Equipment One signal generator Item 4 ade Calibration Five 50 BNC coaxial cables Item 9 One 50 N N coaxial cable Item 10 One GPIB cable Item 11 One RF attenuator Item 13 Prerequisites Refer to page 5 1 Warm up the analyzer for more than one hour to stabilize the bandpass filter YTF 1 Prepare for the calibration See the following figure for the hookup 10 MHz reference BNC cable I BNC cable l BNC cable Q BNC cable Q BNC cable JF gem GPIB cable OC 90000 J e 6 00000 t x E RSA3408A Signal generator 10 dB attenuator 50 N N coaxial cable a Power off the RSA3408A analyzer and the signal generator b Connect the analyzer and the generator with GPIB cable c Connect the analyzer INPUT through a 10 dB attenuator followed by a 50 Q N N coaxial cable to the generator output RSA3408A Service Manual 5 23 Adjustment Procedures d Connect the following connectors using 50 Q BNC coaxial cables REF OUT of the analyzer to 10 MHz reference input of the generator I INPUT of the analyzer to I output of the generator I INPUT of the analyzer to I output of the generator Q INPUT of the a
171. rvice 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 Specifications Operating Information Theory of Operation General Safety Summary ix Service Safety Summary s s s Xi PREEACE ua xs 309300 309 489 879 971 307 16 Rae bee xiii Manual Structure
172. sk drive of the analyzer RSA3408A Service Manual 5 21 Adjustment Procedures 2 Enter the calibration menu a Press Service Password in the CAL menu b Enter 270833 and then press ENTER using the numeric keypad c Press the CAL side key d Set the GPIB address of the generator Press the Config side key Press the SG Type side key to select the manufacturer of the generator Item 1 for the GPIB command system HP or Anritsu Press the SG Address side key and set the generator address Press the Cancel Back top side key 3 Perform the calibration in the baseband and RFI band Press the BB RF1 side key to run the calibration 4 Change the signal generator a Disconnect the cable from the signal generator Item 1 output b Connect the N N cable to the signal generator Item 2 output c Setthe GPIB address of the generator Press the Config side key Press the SG Type side key to select the manufacturer of the generator Item 2 for the GPIB command system HP or Anritsu Press the SG Address side key and set the generator address Press the Cancel Back top side key 5 Perform the calibration in the RF2 and RF3 bands Press the RF2 RF3 side key to run the calibration 6 Disconnect the test equipment a Disconnect the N N cable from the analyzer input b Turn off the analyzer and generators c Disconnect the GPIB cables from the generators 9 22 RSA3408A Se
173. splay line 1 9 Table 1 10 Display qayakuqta e n 1 10 Table 1 11 Measurement function 1 10 Table 1 12 Analog demodulation accuracy 1 10 Table 1 13 Pulse measurement 1 11 Table 1 14 Digital demodulation Option 21 only 1 11 Table 1 15 ACLR measurement Option 27 1 13 Table 1 16 Wireless LAN measurement Option 29 1 13 Table 1 17 Controler 5 20 9ice d wb rex DE wisha paquqa 1 14 Table 1 18 External output connector 1 14 Table 1 19 Power requirements 1 15 Table 1 20 Physical characteristics 1 16 Table 1 21 Environmental characteristics 1 16 Table 1 22 Certifications and compliances 1 17 Table 1 23 I OUTPUT connector pin assignment 1 19 Table 1 24 Q OUTPUT connector pin assignment 1 21 Table 4 1 Span and RBW 4 6 Table 4 2 Internal diagnostic program 4 8 Table 4 3 Test equipment 4 10 Table 4 4 Test item selection 4 13 Table 4 5 Procedure for failed test item 4 19 Table 4 6 Level linearity test result 4 39 Table
174. ss the SPAN key on the front panel The Span menu item is selected by default Set the span to 10 MHz using the general purpose knob d Calibrate the analyzer gain m Press CAL Calibrate Gain m Press Amplitude Auto Level 4 30 RSA3408A Service Manual Performance Tests RSA3408A Service Manual 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 zx 0 3 dB 5 Disconnect the hookup Disconnect the cable at the analyzer input RF Test 6 Modify the signal generator output a Hook up the test equipment Connect the signal generator output through 50 Q N N coaxial cable to the power sensor input See Figure 4 9 on page 4 29 Modify the signal generator controls 2 on oa s eda eases 100 MHz Level 20 dBm Modify the power meter control PPP 100 MHz Adjust the output level of the signal generator so that the power meter reads 20 dBm 0 05 dBm 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 RSA3408A INPUT See Figure 4 10 on page 4 30 Modify the analyzer controls m Press the FREQUENCY CHANNEL key on the front panel The Center Freq menu item is selected by def
175. stment 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 failure 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 RSA3408A 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 Missin
176. t Span lt 500 MHz 10 kHz 500 kHz lt Span lt 20 MHz 1 kHz 200 kHz lt Span lt 500 kHz 500 Hz 100 kHz lt Span lt 200 kHz 200 Hz 50 kHz lt Span lt 100 kHz 100 Hz 20 kHz lt Span lt 50 kHz 50 Hz 10 kHz lt Span lt 20 kHz 20 Hz 5 kHz lt Span lt 10 kHz 10 Hz 2 kHz lt Span lt 5 kHz 5 Hz 1 kHz lt Span lt 2 kHz 2 Hz 100 Hz lt Span lt 1 kHz 1 Hz Table 1 9 Trace and display line Characteristics Description Number of traces 2 Trace type Normal Average Max Hold Min Hold Display detector Positive peak Negative peak and Positive Negative peak Display line Horizontal line 1 and 2 Vertical line 1 and 2 RSA3408A Service Manual 1 9 Specifications Table 1 10 Display Characteristics Views S A mode S A with Spectrogram mode Real Time S A mode Analog Demod mode Time mode LCD Size Resolution Color Table 1 11 Measurement function Characteristics S A mode Analog Demod mode Time mode Description Spectrum Spectrum and Spectrogram Spectrum and Spectrogram Overview Power versus Time Spectrogram Subview Spectrum Main view Measurement Results Overview Power versus Time Spectrogram Subview Spectrum Main view Measurement results 213 mm 8 4 in 800 x 600 pixels Maximum 256 colors Description Channel power Adjacent channel power ratio Occupied bandwidth Emission bandwidth Carrier to Noise ratio Carrier frequency Spurious versus Time AM depth FM de
177. t in calibration signal source with an amplitude of approximately 20 dBm and frequency of 100 MHz Using this source perform this quick functional check to verify that your instrument is 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 in 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 Press S A Spectrum Analyzer Press the PRESET key on the front panel to reset the analyzer Press INPUT Signal Input Port Cal100M 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 RSA3408A Service Manual Brief Procedures Sy NPUT Tektronix RSA 3408A r kv O Is
178. the Dac cal file RSA3408A Service Manual The service Cal menu has the following controls Target Files Selects the calibration items Selects all calibration See the All column in the table on the screen The results are overwritten to the existing cal files Absent Selects the calibration that has no cal file See the Absent column in the table on the screen Cal Select Selects the calibration items for the All Band group in Table 5 2 m All Selects all the calibration items in the All Band group Spurious Selects the spurious calibration only NOTE It takes about three hours to perform the spurious calibration for each of the RF2 and bands about nine hours in total Other Selects all the calibration except spurious in the All Band group All Band Performs the selected calibration in all bands Baseband RF1 RF2 and RF3 Measurement bandwidth 1 MHz to 8 GHz 5 15 Adjustment Procedures NOTE You can select the calibration frequency band using the BB BB RF1 RF2 RF3 and RFI RF2 RF3 side keys described below IF Flatness Wide IQ Performs the IF flatness wide IQ calibration IQ Gain Option 03 only Performs the IQ gain calibration 10MHz Reference Performs the 10 MHz reference oscillator calibration BB Performs the selected calibration in the baseband Measurement bandwidth 1 MHz to 40 MHz RF1 Performs the selected calibration in the RF1 band Measurement
179. the cabinet to the rear panel at each corner c Remove the center two screws securing the cabinet to the rear panel d 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 RSA3408A Service Manual Removal and Installation 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 RSA3408A Service Manual 6 23 Removal and Installation Procedures 6 24 Cabinet Modules 2220020000 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 14 b Locate the modules to be removed in the locator diagram External Modules see Figure 6 2 Orie
180. 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 37 Using another spectrum analyzer measure the output at the cable end Changing the span from 36 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 6 GHz Amplitude 38 dBm Is the signal level and noise floor correct Replace RF3 module Replace A40 DIFP board Yes No Check gain and offset values of The analyzer is OK the bandpass filter See Figure 6 38 in the service menu Refer to Reconfiguration of RF Modules on page 5 27 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 27 Yes Replace Restart the analyzer Bandpass filter or A100 Cal generator Figure 6 36 Troubleshooting procedure 3 Signal path Cont 6 74 RSA3408A Service Manual Troubleshooting
181. the signal generator Item 3 that covers all bands baseband RF I RF2 and perform this procedure twice to create the correction files on a floppy disk for both low and high bands RSA3408A Service Manual Adjustment Procedures 1 Prepare for the adjustment NOTE Store the power sensor correction factors in the power meter if not already stored When you use the Agilent 437B power meter refer to Storing Cal Factors in the Power Meter on page 5 4 a Turn off the signal generator power meter and analyzer b Connect the power sensor output to the power meter input See Figure 5 2 RSA3408A f eer Signal generator Power meter Q i 20 0000 6 GPIB cable GPIB cable 3 P u J 4 10 dB attenuator N adapter Power sensor Output N N coaxial cable Figure 5 2 Initial test hookup c Connect the signal generator output through a 50 Q N N coaxial cable followed by a 10 dB attenuator and an N adapter to the power sensor input d Connect the GPIB cables on the signal generator the power meter and the analyzer rear panel e Turn on the signal generator the power meter and the analyzer f Set the
182. tion from 5 to 30 dB in 5 dB steps 4 Modify the generator controls 4 34 Amplitude 5 dBm RSA3408A Service Manual Performance Tests RSA3408A Service Manual Modify the analyzer controls a Press the AMPLITUDE key on the front panel b The Ref Level menu item is selected by default Set the reference level to 0 dBm using the general purpose knob c Make sure that RF Att is set to 30 dB 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 Check the amplitude for attenuation from 35 to 55 dB a Press the RF Att side key and set the attenuation initially 35 dB b Press the PEAK key on the front panel to place the marker on the peak c Record the peak amplitude at the marker readout Let the value be Px d Check that the error Px P4 is within 0 2 dB e Repeat substeps a through d for attenuation from 35 to 55 dB in 5 dB steps Disconnect the test equipment Disconnect the cable at the analyzer input 4 35 Performance Tests Check Level Linearity Equipment One signal generator Item 1 Required One spectrum analyzer Item 5 One power meter Item 7 One power sensor Item 8 One 50 N N coaxial cable Item 11 Prerequisites Refer to page 4 10 1 Setup the power meter and sensor Do step 1 on pa
183. to run the calibration Disconnect the test equipment a Disconnect the cable from the analyzer input b Turn off the analyzer and generator c Disconnect the GPIB cable RSA3408A Service Manual Adjustment Procedures All Band Calibration Use the following procedure to perform the auto calibration STOP Select either of these two procedures by the signal generator s you use B Procedure 1 below Uses one signal generator Item 3 which covers all measurement bands Baseband RF2 m Procedure 2 on page 5 21 Uses two signal generators Item 1 which covers the baseband and RF band and Item 2 which covers the RF2 and RF3 bands Procedure 1 Performs the all band calibration using one signal generator Item 3 that covers all measurement bands Baseband RF1 RF2 and RF3 Equipment One signal generator Item 3 Required qu One 50 Q N N coaxial cable Item 10 GPIB cables Item 11 One RF attenuator Item 13 One SG flatness floppy disk Item 17 Prerequisites Refer to page 5 1 l Prepare for the calibration See the following figure for the hookup RSA3408A S ULM generator 1 59 0000 J C OC C CJ 9 GPIBcable 6 aooco Output 10 dB attenuator 50
184. to select On m Press the RBW side key set the RBW to 2 kHz RSA3408A Service Manual 4 41 Performance Tests g Modify the generator output level 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 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 Press the Markers side key to select Delta Measure the amplitude for the signals of 1999 55 MHz and 2000 45 MHz Press the Select Marker side key to select 1 Place the first marker at the signal of 1999 55 MHz using the MARKERS lt q or P key Press the Select Marker side key to select 2 Place the second marker at the signal of 2000 45 MHz using the MARKERS lt q or P key Check against limits Read the first and the second marker readouts Confirm that the larger value meets the requirement of 78 dBc 3 Disconnect the test equipment Disconnect the cable at the analyzer input 4 42 RSA3408A Service Manual Performance Tests Check Displayed Average Equipment None Noise Level Required Pre
185. tor 1 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 15t LO signal the input signal is frequency converted into 15t IF signal of approximately 4231 MHz Oscillation frequency of 1 Local Oscillator is controlled with a synthesizer RF4 module in this case so that 1 IF signal is always maintained at approxi mately 4231 MHz After this the 1 IF signal passes through the 15t IF Amplifier that has a gain of approximately 17 dB and is sent to the 22d Converter RF2 module 3 1 Theory of Operation 3 2 RF2 Module RF5 Module RF6 Module In the 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 A10 A D board for A D conversion In the RF1 band an input signal goes through all converters 18 2nd and 3 9 In the RF2 and bands an input signal is directly frequency converted by the 1 Converter into the 214 IF signal of approximately 421 MHz then sent directly to the 3 4 Converter bypassing the 2 d Converter The RF2 module consists of the 2 d Converter 2 d IF Filter and 2 d Local Oscillator LO The 15 IF signal sent from the 1 Converter passes through a Bandpass Filter and a Lowpass Filter for removal of unnecessary frequency bands After this the 15t IF signal enters the 2nd Converter In the 2 d Converter the 15 IF signal is
186. trical 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 RSA3408A Service Manual 1 17 Specifications Table 1 22 Certifications and compliances Cont Characteristic Description Overvoltage Category Descriptions Terminals on this product may have different installation overvoltage category designations The installation categories are CAT IlI Distribution level mains usually permanently connected 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 Overvoltage Category Descriptions Overvoltage Category II as defined IEC61010 1 Pollution Degree Descriptions 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 No pollution or only dry nonconductive pollution occurs Products in this category are generally encapsulated hermetically sealed or located in clean rooms Pollution Degree 2 Normally only
187. ttom modules Power supply Figure 6 7 on page 6 17 Orient the analyzer Set the analyzer so its top is down on the work surface and its rear is facing you Remove the line filter See Figure 6 25 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 Reinstallation Reverse step 3 to reinstall the line filter 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 7 on page 6 17 Orient the analyzer Set the analyzer so its top is down on the work surface and its right side is facing you Remove the principal power switch See Figure 6 25 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 Reinstallation Reverse step 3 to reinstall the principal power switch RSA3408A Service Manual Removal and Installation Procedures Procedures for RF1 Modules on the Instrument Bottom A100 Cal Generator Board Step Attenuator RSA3408A Service Manual Read the Access Procedure on page 6 21 before proceeding The procedures are presented in the following order
188. ubsection disconnect the power cord from the line voltage source Failure to do so could cause serious injury or death 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 Procedures 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 RSA3408A Service Manual Removal and Installation Procedures Summary of Procedures RSA3408A Service Manual The procedures are described in the order in 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 Procedures for m Line cord m Front cushion 6 22 external modules m Cabinet m Cabinet modules Procedures for m RF2 module RF5 module RF Mo
189. urpose knob b 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 10 MHz 1 kHz B Press MEASURE gt Carrier Frequency B 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 RF1 band a Modify the generator control PETERET TIT 2 GHz b Modify the analyzer controls m Press the FREQUENCY CHANNEL key on the front panel m The Center Freq menu item is selected by default Set the frequency to 2 GHz using the numeric keypad c 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 2 GHz x 1 2 kHz B Press MEASURE Carrier Frequency B Read the measurement result at the bottom of the screen Confirm that the value is 2 GHz 210 Hz 4 22 RSA3408A Service Manual Performance Tests 4 Check frequency accuracy in the RF2 band a Modify the generator control Frequency aoa dace rh 5 GHz b Modify the analyzer controls m Press the FREQUENCY CHANNEL key on the front panel The Center Freq menu item is selected by default Set the frequency to 5 GHz using the numeric keypad c 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 Carr
190. us display Frequency error measurement and Origin offset measurement Symbol display Frequency error measurement and Origin offset measurement Q and Trellis displays 1 to 16 symbols EVM Magnitude error Phase error Waveform quality p measurement Frequency error measurement and Origin offset measurement Binary Octal Hexadecimal Measured amplitude versus Reference amplitude 1 dB compression measurement Phase error versus Reference amplitude Probability of exceed versus Power level Crest factor measurement Probability of occurrence versus Power level Specifications Table 1 14 Digital demodulation Option 21 only Cont Characteristics Description Accuracy QPSK EVM EVM Typical Symbol rate Center frequency 1 GHz 100 kHz 1 MHz 4 MHz 10 MHz 20 MHz 100 kHz 1 MHz 4 MHz 10 MHz 20 MHz 100 kHz 1 MHz 4 MHz 10 MHz 20 MHz 100 kHz 1 MHz 4 MHz 10 MHz 20 MHz 4 DQPSK EVM EVM Typical Symbol rate Center frequency 1 GHz 100 kHz 1 MHz 4 MHz 10 MHz 20 MHz 100 kHz 1 MHz 4 MHz 10 MHz 20 MHz 100 kHz 1 MHz 4 MHz 10 MHz 20 MHz 100 kHz 1 MHz 4 MHz 10 MHz 20 MHz Center frequency 2 GHz Center frequency 3 GHz Center frequency 5 GHz Center frequency 2 GHz Center frequency 3 GHz Center frequency 5 GHz RSA3408A Service Manual Specifications Table 1 14 Digital demodulation Option 21 only Cont Characteristics Description 16 64QAM
191. usts the level of input signal as appropriate in accordance with reference level settings and sends the signal to the 15 converter Input Relay located just after the RF INPUT connector is for calibration signal switching It switches to pass the internal calibration signal when self gain cal ibration or IF flatness calibration is selected The step attenuator that follows is a programmable attenuator of 5 dB step It attenuates an input signal up to 55 dB Band Relay switches signal paths between the RF1 band and the RF2 RF3 band In the RF2 and RF3 bands bandwidth of the signal is limited by the Program mable Bandpass Filter BPF 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 1s achieved with the current output from the A100 Cal Generator board In a same way the attenuator and relays are controlled with currents from the A100 board On the A100 Cal Generator board various components are installed such as a group of registers to save the setup data from Hardware Controller driver circuits for attenuator and relays 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 IQ modulator for IF flatness calibration and other components The module contains the 1 Converter 1 Local Oscilla
192. utput data bit 5 LVDS 10 Q output data bit 6 LVDS s 11 Q output data bit 7 LVDS 12 Ground 13 Q output data bit 8 LVDS 09 09 __ EXT_Q10 EXT_Q10 RSA3408A Service Manual 1 21 Specifications Table 1 24 Q OUTPUT connector pin assignment Cont Pin number Signal name Description 16 EXT Q11 Q output data bit 11 LVDS 1 17 Ground 18 Q output data bit 12 LVDS 8 19 Q output data bit 13 LVDS 20 Q output data bit 14 LVDS T 21 Q output data bit 15 LVDS 22 Ground 47 GND 23 GND 48 GND 24 NC Not used 2 2 O O P 1 22 RSA3408A Service Manual Operating Information i Z i h W D l S Operating Information The operating Information for this Instrument are available in the RSA3408A User Manual Tektronix part number 071 1617 xx that shipped with your product RSA3408A Service Manual 2 1 Operating Information 2 2 RSA3408A Service Manual Theory of Operation i Aa Theory of Operation RF Input Down Converter RF3 Module RSA3408A Service Manual This section describes the electrical operation of the RSA3408A analyzer using the major circuit blocks or modules shown in Figure 9 1 on page 9 3 The RF input circuit block consists of a relay for signal switching Input Relay Step Attenuator Programmable Bandpass Filter and a control circuit for these components This block adj
193. viation PM deviation I Q versus Time Power versus Time Frequency versus Time CCDF Table 1 12 Analog demodulation accuracy Characteristics Accuracy Typical AM demodulation PM demodulation FM demodulation Description 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 RSA3408A Service Manual Specifications Table 1 13 Pulse measurement Characteristics Measurement functions Pulse length Description Pulse width Pulse peak power On Off ratio Pulse ripple Pulse repetition interval Duty cycle Pulse Pulse phase Channel power OBW EBW Frequency deviation Minimum 20 samples Maximum 260 000 samples Table 1 14 Digital demodulation Option 21 only Characteristics Demodulator Carrier type Modulation format Measurement filter Reference filter Filter parameter Maximum symbol rate Standard setup Measurement functions Display format Vector diagram Constellation diagram Eye diagram Error vector diagram Symbol table AM AM AM PM CCDF PDF RSA3408A Service Manual Description Continuous and Burst BPSK QPSK 11 4 shift DQPSK OQPSK 8PSK 16QAM 64QAM 256QAM GMSK GFSK ASK FSK Root cosine Cosine Gauss a BT 0 0001 to 1 0 0001 step 51 2 Msps PDC PHS NADC TETRA GSM CDPD and Bluetooth Constellation EVM I Q versus Time Eye diagram Symbol table AM AM AM PM CCDF PDF Symbol Loc
194. wcharts m Figure 6 34 Troubleshooting Procedure 1 Power supply system m Figure 6 35 Troubleshooting Procedure 2 CPU and Display system m Figure 6 36 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 RSA3408A 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 the ON STANDBY SWITCH on the front panel Are the two fans on the left side working NO Yes Is the fan on the CPU board working No Yes Do the twelve power indicators LED on the A70 DC power board light See Figure 6 39 Check the test point voltages on A70 see Table 6 7 and Figure 6 39 Are the voltages OK Yes The power supply is OK NOTE Turn off the analyzer using the m ON 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 Figure 6 38
195. y 100 MHz vr FC 1 MHz RF attenuation 10 dB RDW Auto 4 37 Performance Tests 5 Set the reference offset a Set the spectrum analyzer control Average 10 b Measure the peak power Ppr using the maker peak Modify the spectrum analyzer control Reference offset Pr4 Ppr 6 Determine the reference power in 40 to 50 dBm Set the signal generator amplitude to 40 and 50 dBm to measure the power as Pr5 and 6 respectively Signal generator amplitude Reference power 40 dBm Pro 50 dBm Pr6 7 Modify the hookup a Connect the signal generator output to the RSA3408A analyzer Input See the following figure RSA3408A m Signal generator 50 coaxial cable b Set the signal generator control Amplitude 10 dBm Modify the RSA3408A analyzer controls Center frequency 100 MHz SPAN MC 5 MHz Referencelevel 10 dBm RF attenuation 20dB 4 38 RSA3408A Service Manual Performance Tests RSA3408A Service Manual 8 Measure the power Table 4 Measure the power and record it as PmO Set the signal generator amplitude to 0 to 50 dBm in 10 dB steps to measure the power as Pml to
196. yzer 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 Maintenance Procedures RSA3408A Service Manual The following sections contain information and procedures related to mainte nance m Section 2 Operating Information covers instructions that are 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
197. z 7 MHz 140 dBc Hz 10 MHz 99 dBc Hz 1 kHz 108 dBc Hz 10 kHz 108 dBc Hz 20 kHz 108 dBc Hz 30 kHz 113 dBc Hz 100 kHz 134 dBc Hz 1 MHz 139 dBc Hz 5 MHz 139 dBc Hz 7 MHz 139 dBc Hz 10 MHz Description N type RF and baseband input BNC type Option 03 IQ input 50 Q 1 4 2 5 GHz RF attenuation210 dB 1 8 7 5 GHz RF attenuation210 dB 1 4 300 kHz to 40 MHz RF attenuation210 dB 1 3 40 MHz to GHz RF attenuation210 dB 1 4 8 GHz to 8 GHz RF attenuation210 dB 0 2 V to 3 5V Baseband 5V Option 03 IQ input 30 dBm RF1 to 3 RF attenuation210 dB 0 to 55 dB 5 dB step 0 to 35 dB 5 dB step RSA3408A Service Manual Specifications Table 1 4 Amplitude Characteristics Reference level Reference level setting range Accuracy 10 to 50 dBm Frequency response RF attenuation210 dB at 20 to 30 C Typical at 10 to 40 C Absolute amplitude accuracy at calibration point 20 to 30 C Input attenuator setting uncertainty Level linearity in display range RSA3408A Service Manual Description Baseband 30 to 20 dBm 5 dB step RF 50 to 30 dBm 1 dB step Option 03 IQ input 10 to 20 dBm 5 dB step 0 2 dB at 100 MHz 10 dB attenuation 20 to 30 C 0 5 dB 100 kHz to 40 MHz 1 2 dB 40 MHz to 3 5 GHz 1 7 dB 3 5 GHz to 6 5 GHz 1 7 dB 5 GHz to 8 GHz 0 3 dB 100 kHz to 40 MHz 0 5 dB 40 MHz to 3 5 GHz 1 0 dB 3 5 GHz to

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