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AFG3000 Series Arbitrary/Function Generators Service Manual

1. I ATZIA32IM2 gt EIZ n Filter amp output E 2 Generator Pre Amp Amplifier Output gt On Chip DC offset li 1 Calibration o gt 4 E Circuit E A o4 E ADD In N except AAA PA AE EA A AA _ N AFG302x Generator 1 1 AT1 A31 A41 y Local Regulators o FES tl 18V433V Ext Mod da TRIGGER T Ext Tri T T xt Tri an pod Clock ebe Agiro pol Circuit Ext Ref toot y 24 Tig Out Put Trigger 11 gt except Circuit Out AFG302 Il E 4 Generator gl Ext Ref 1 Filter amp output i CH1 AD I h On Chip Amplifier o E Gate Il l DC offset Ext Mod Il CH In Calibrati li alibration M ap EO Il te ete tee Ne eT gt AA eee a el BNC Insulator 82 J nn e ie 2 CPU y Fan jo USB Controller 1 CPU Circuit le A75 Front lt gt 1 GPIB 1 Interface MPU ROM RAM etc Panel Board da GPIB amp i LAN Safety Ground Area gt 1 1 LAN na ERR USB
2. j CH1 beei BNC Fe N Ma adapter 50 BNC coaxial cable Figure 4 8 Total Harmonic distortion tests 2 Set up the arbitrary function generator using the following steps Select menu Setting Operation Function Sine Sine front Frequency 20 00 kHz Frequency Period front Amplitude Units Vpp TopMenu gt Amplitude Level Menu gt more gt Units gt Vpp Amplitude 1 00 Vpp Amplitude High front Channel 1 Output On On front 3 Set up the spectrum analyzer according to the following table 100 kHz 200 kHz 500 Hz 4 When the THD cannot be measured directly it is obtained by using the following calculation 2 DS THD 2__ G 5 Measure and record each level to to the seventh harmonics of the 20 kHz sine wave 4 28 AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification 6 Calculate the each B to C to C value and the THD AFG3xxx Measurement Function Frequency Fundamental 2nd 3rd 4th bth eth 7th reference sine 20 00 kHz 20 kHz 40 kHz 60 kHz 80 kHz 100 kHz 120 kHz 140 kHz reading dBm 5 A reading reference 0 Bo Bs An Ay dBc G eg 20 C 1 Co Cy C C C7 Limit mo lt 0 2 n
3. Rise Fall Time AFG302X CH1 Rise Time Amplitude 0 1 Vip 18 ns Fall Time Amplitude 0 1 Vy 18 ns Rise Time Amplitude 1 0 Vap 18 ns Fall Time Amplitude 1 0 Vap 18 ns Rise Time Amplitude 10 0 Vp 18 ns Fall Time Amplitude 10 0 Vj 18 ns CH2 Rise Time Amplitude 0 1 Vp 18 ns Fall Time Amplitude 0 1 Vy 18 ns Rise Time Amplitude 1 0 Vp 18 ns Fall Time Amoplitude 1 0V 18 ns Rise Time Amplitude 10 0 Vy 18 ns Fall Time Amplitude 10 0 Vp 18 ns AFG310X CH1 Rise Time Amplitude 0 1 Vp 5 ns Fall Time Amplitude 0 1 Vy 5 ns Rise Time Amplitude 1 0V 5 ns Fall Time Amplitude 1 0 Vap 5 ns Rise Time Amplitude 10 0 Vy 5 ns Fall Time Amplitude 10 0 Vap 5 ns CH2 Rise Time Amplitude 0 1 Vp 5 ns Fall Time Amplitude 0 1 5 ns Rise Time Amplitude 1 0 Wo 5 ns Fall Time Amplitude 1 0 Vo 5 ns Rise Time Amplitude 10 0 Vap 5 ns Fall Time Amplitude 10 0 Vp 5 ns AFG3000 Series Arbitrary Function Generators Service Manual 4 17 Performance Verification AFG3000 Series Performance Test Record cont Minimum Test result Maximum AFG325X CH1 Rise Time Amplitude 0 1 Vip 2 5 ns Fall Time Amplitude 0 1 Vip
4. CH1 Output Power head 50 Q BNC coaxial cables Figure 4 6 AC flatness tests 2 Set up the arbitrary function generator using the following steps Select menu Setting Operation Function Sine Sine front Frequency 100 0000 kHz Frequency Period front Amplitude Units dBm TopMenu gt Amplitude Level Menu gt more gt Units gt dBm Amplitude 4 0 dBm Amplitude High front Channel 1 Output On On front 3 Set the frequency of the Power Meter to 100 kHz 4 Write the Power Meter reading of the 100 kHz sine wave as a reference power value 5 Verify that the power measurement at each frequency is within the error specified in the following tables 4 24 AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification AFG302x Measurement Range Function Amplitude Frequency dB dB Sine 4 0 dBm 100 00 kHz Reference Sine 4 0 dBm 500 00 kHz Reference 0 15 Sine 4 0 dBm 1 00 MHz Reference 0 15 Sine 4 0 dBm 5 00 MHz Reference 0 30 Sine 4 0dBm 15 00 MHz Reference 0 30 Sine 4 0dBm 25 00 MHz Reference 0 30 AFG310x Measurement Range Function Amplitude Frequency dB dB Sine 4 0 dBm 100 00 kHz Reference Sine 4 0 dBm 1 00 MHz Reference 0 15 Sine 4 0dBm 5 00 MHz Reference 0 30 Sine 4 0dBm
5. 4 19 50 terminator 4 20 Amplitude tests olv ehe EE uS 4 20 50 Q terminator 4 22 DG oflfs t me 4 22 AC flatness tests aera irtee aee ehe ede kidek 4 24 Harmonic distortion tests 4 26 Total Harmonic distortion tests 4 28 Spurious 165462222522 c e ves urn en de 4 30 Rise Fall time tests 4 33 Reference Clock adjustment 5 4 LF adjustment 5 5 Flatness adjustment 5 6 Spurious adjustment 5 8 Trigger delay adjustment 5 10 Disassembly 6 8 Removing and installing the flip feet 6 9 Rear case removal 6 10 Top cover removal 6 11 Front case removal 6 12 75 front panel board removal 6 13 Display module removal 6 13 Output board removal 6 14 Separation of the rear module and main chas
6. 2 5 ns Rise Time Amplitude 1 0 Vp rro 2 5 ns Fall Time Amplitude 1 0 Vp 2 5 ns Rise Time Amplitude 5 0 Vp 2 5 ns Fall Time Amplitude 5 0 Vp 2 5 ns CH2 Rise Time Amplitude 0 1 Vy 2 5 ns Fall Time Amplitude 0 1 Vy 2 5 ns Rise Time Amplitude 1 0 Vj 2 5 ns Fall Time 10 2 5 ns Rise Time Amplitude 5 0 Vp 2 5 ns Fall Time Amplitude 5 0 Vp 2 5 ns 4 18 AFG3000 Series Arbitrary Function Generators Service Manual Frequency Period Test Performance Verification This test verifies the frequency accuracy of the arbitrary function generator All output frequencies are derived from a single generated frequency Only one frequency point of channel 1 is required to be checked 1 Connect the arbitrary function generator to the frequency counter as shown in Figure 4 1 AFG3000 Series Frequency counter CH1 Output Figure 4 1 Frequency Period tests 50 Q BNC coaxial cables Inputs 2 Push the Default front panel button and OK menu button to recall the arbitrary function generator default setup 3 Set up the arbitrary function generator using the following steps Select menu Setting Operation Frequency 1 000000 MHz Frequency Period front Amplitude 1 00 Vpp Amplitude High front Channel 1 Output On On front 4 Check th
7. Replace the LCD module Do USB GPIB and LAN function normally No ga Replace the CPU board Completed a platform check Figure 6 19 Platform troubleshooting procedure 6 24 AFG3000 Series Arbitrary Function Generators Service Manual O Y Generator troubleshoot start Y Execute the Utility gt Diagnostics Y No Diagnostics OK Is it an error code related to CPU Yes Execute the Utility gt Calibration Replace the CPU board No Calibration OK No Yes Replace the Generator board No Does the Trigger Input Output function Replace the Generator board Do the No Ext Modulation Input Ext Ref Input and Replace the Generator board Ext Ref Output function Yes Does the Add Input function No Replace the Amplifier board Yes Competed a Generator check Figure 6 20 Generator troubleshooting procedure Troubleshooting Replace the Generator board Remove the Output Amplifier Board Check the signal of the Pre Amplifier Is the signal OK Replace the Amplifier board AFG3000 Series Arbitrary Function Generators Service Manual d Replace the Generator board 6 25
8. CH1 Output 50 Q BNC coaxial cables 50 2 terminator BNC Dual banana adapter Figure 4 5 DC offset tests 4 22 AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification 4 Set up the arbitrary function generator using the following steps Select menu Setting Operation Function DC More front gt More Waveform Menu gt DC Frequency 1 000000 kHz Frequency Period front Offset 5 000 V Offset Low front 2 500 V AFG325x Channel 1 Output On On front 5 Verify that each offset measurement is within the range specified in the following tables AFG302x and AFG310x Measurement Range Function Offset DC 5 000 Vdc Vdc 5 000 x CF 0 055 Vdc DC 0 000 Vdc Vdc 0 005 Vdc DC 5 000 Vdc Vdc 5 000 x CF 0 055 Vdc AFG3251 and AFG3252 Measurement Range Function Offset DC 2 500 Vdc Vdc 2 500 x CF 0 030 Vdc DC 0 000 Vdc Vdc 0 005 Vdc DC 2 500 Vdc Vdc 2 500 x CF x 0 030 Vdc 6 AFG3xx2 only Repeat steps 3 through 5 for the channel 2 output AFG3000 Series Arbitrary Function Generators Service Manual 4 23 Performance Verification AC Flatness Test This test verifies the flatness of a sine wave to 100 kHz sine wave 1 Connect the arbitrary function generator to the power meter with a power head as shown in Figure 4 6 AFG3000 series Power meter e a A
9. 4 00 U O o f 36 8 1 45 Figure 1 2 RM3100 Rackmount dimensions AFG3000 Series Arbitrary Function Generators Service Manual in mm and in Front 1 11 Specifications 1 12 AFG3000 Series Arbitrary Function Generators Service Manual Operating Information Operating Basics This section provides installation and operating information that is necessary for service General Features The following table and bulleted list describe the general features of AFG3000 Series Arbitrary Function Generators Table 2 1 General features Feature AFG3021 AFG3252 Channel 1 2 1 2 1 2 Sine 25 MHz 100 MHz 240 MHz Pulse Square 12 5 MHz 50 MHz 120 MHz Ramp Gaussian 250 kHz 1 MHz 2 4 MHz Arbitrary Waveform Length 2 to 65 536 240 131 072 240 131 072 Sample Rate Waveform Length lt 16384 250 MS s 1 GS s 2 GS s 16384 lt Waveform Length 250 MS s 250 MS s 250 MS s Resolution 14 bits 14 bits 14 bits Amplitude 10 Vp p 10 Vp p 5 Vp p Display Monochrome Color Color Color Interface USB USB LAN GPIB USB LAN GPIB Three functions integrated into one generator 25 MHz to 240 MHz Function Generator 12 5 MHz to 120 MHz Pulse Generator M 14 bits Arbitrary Waveform Generator Ground isolation Synchronous operation USB memory interface ArbExpress Software Context sensitive Help system AFG3000 Series
10. AFG3000 Series Arbitrary Function Generators Service Manual 1 7 Specifications Inputs Outputs Table 1 11 Front Panel Characteristics Description Trigger Output AFG3021 AFG3022 AFG3101 AFG3102 AFG3251 AFG3252 Level Positive level pulse into 1 Impedance 50 Q Jitter rms typical 500 ps 200 ps 100 ps Trigger Input Level TTL compatible Pulse Width 100 ns minimum Impedance 10 Slope Positive Negative selectable Trigger Delay 0 0 ns to 85 000 s Resolution 100 ps or 5 digits Jitter rms typical Burst lt 500 ps Trigger input to signal output Table 1 12 Rear Panel Characteristics External Modulation Input Description Input Range 21 0 V full scale except FSK 3 3 V logic level FSK Impedance 10 Frequency Range AM FM PM FSK PWM DC to 25 kHz Sampling rate 122 kS s External Reference Output AFG3101 AFG3102 and AFG3251 AFG3252 Impedance 50 AC coupled Amplitude 1 2 Vp p into 50 Q External Reference Input Impedance 1 AC coupled Required Input Voltage Swing 100 mV to 5 Vp p Lock Range 10 MHz 35 kHz CH1 Additional Input AFG3101 AFG3102 and AFG3251 AFG3252 Impedance 50 Q Input Range 1 V to 1 V DC peak Bandwidth DC to 10 MHz dB at 1 Vp p AFG3000 Series Arbitrary Function Generators Service Manual General Table 1 13 System Characteristi
11. Flip feet Rear case Top cover Front case Output board AFG310x and Keypad AFG325x A75 Front panel Separation of the rear board module and main chassis Y Y Display module Rear module Main chassis Inverter A82 BNC Fan Generator board Insulator board Power supply 81 BNC Insulator boara BNC bracket 70 72 CPU board Figure 6 1 Disassembly order 6 8 AFG3000 Series Arbitrary Function Generators Service Manual Removal and Installation Procedures Tools Required Use the following tools to remove and replace all modules in the arbitrary function generator B Torque limiting screwdriver long shank 8 Ib in 0 85 N m range with Torx T 15 tip 16 mm 5 8 inch deep socket with wide center hole 7 mm 9 32 inch socket Torque wrench to 30 in Ib 3 3 N m Screwdriver with 1 4 inch flat blade Pliers all purpose and needle nose Tweezers Flip feet You will need needle nose pliers to remove the flip feet Removal To remove the flip feet refer to Figure 6 2 and follow these steps 1 Place the arbitrary function generator top down on a soft surface such as an anti static mat 2 Grip the flip foot with the pliers as close to the notches as possible and squeeze gently on the foot 3 Twist slightly to swing one hinge free of the slot Figure 6 2 Removing and installing the flip feet Installation To install the flip feet refer to Figure 6 2 and follow these steps 1 Place the arb
12. Inspect the internal portions of the AFG3000 Series arbitrary function generator for damage and wear using Table 6 2 as a guide Defects should be repaired immediately CAUTION To prevent damage from electrical arcing ensure that circuit boards and components are dry before applying power to the arbitrary function generator Table 6 2 Internal inspection check list Item Inspect for Repair action Front and Rear Case Cracks or deformations Scratched lettering Repair or replace defective or display filter Loose connectors or labels hardware Circuit boards Loose broken or corroded solder Remove failed module and connections Burned circuit boards Burned replace with a new module broken or cracked circuit run plating Solder connections Cold solder or rosin joints Resolder joint and clean with ethyl alcohol AFG3000 Series Arbitrary Function Generators Service Manual Table 6 2 Internal inspection check list cont Item Inspect for Wiring and cables Loose plugs or connectors Burned broken or frayed wiring Maintenance Repair action Firmly seat connectors Repair or replace modules with defective wires or cables Chassis Dents deformations and damaged hardware Straighten repair or replace defective hardware Cleaning Procedure Interior Do the following steps to clean the arbitrary function generator interior 1 Blow off dust with dry low p
13. Local Regulators Memory Primary Circuit ZO 3 3 V 28 V Ge i GE inverter lonochrome IN Power Supply Unit EN gt PP Display 5V Figure 3 1 AFG3000 Series block diagram 3 2 AFG3000 Series Arbitrary Function Generators Service Manual Theory of Operation Platform CPU Board 70 72 CPU Circuit The CPU Circuit contains an MPU Flash RAM and DRAM to control the instrument The liquid crystal controller and the USB circuit are included in the MPU Local Regulators This regulator stabilizes and supplies 3 3 V and 5 0 V for the logic circuit Remote Interface The A72 board contains a GPIB and LAN driver circuit The A70 board installed in the AFG3021 and AFG3022 does not contain the GPIB and LAN driver circuit Fan Controller This circuit controls the speed of the fan Primary Circuit Contains the power switch and the filter circuit Signal I O Circuit The Reference Clock Input Output and the Modulation Input signals are transmitted to the Generator section through this board Front Panel The Front Panel controls a rubber button matrix LED a buzzer and a rotary encoder Power Supply The power supply module provides 4 3 V 15 V and 5 V to the circuit This power supply module accepts the input voltage within the range of 250 VAC from 90 VAC LCD The display is a color monochrome Quarter VGA 320 x 240 STN LCD display The high voltage power for LCD is suppli
14. 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 AFG3000 Series Arbitrary Function Generators Service Manual ix Service Safety Summary X AFG3000 Series Arbitrary Function Generators Service Manual Preface This manual provides instructions to verify the performance of calibrate troubleshoot and repair the arbitrary function generators to the module level Unless noted otherwise the term AFG3000 Series refers to the models in the AFG3021 AFG3022 AFG3101 AFG3102 AFG3251 and AFG3252 arbitrary function generators The manual consists of the following sections Specifications contains a description of the arbitrary function generator and the characteristics that apply to it Operating Information includes general information and operating instructions Theory of Operation contains circuit descriptions that support service to the module level Performance Verification contains procedures for confirming that the arbitrary function generator functions properly and meets warranted limits Adjustment Procedures contains information that you need to manually adjust the arbitrary function generator so that it meets specifications Maintenance contains information and pr
15. 6 3 Internal inspection checklist 6 4 Required equipment 6 23 Error Codes en Seales Semin sald Se 6 28 AFG3000 Series Arbitrary Function Generators Service Manual List of Figures Figure 1 1 Figure 1 2 Figure 2 1 Figure 2 2 Figure 2 3 Figure 2 4 Figure 2 5 Figure 2 6 Figure 2 7 Figure 3 1 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 Figure 4 10 Figure 5 1 Figure 5 2 Figure 5 3 Figure 5 4 Figure 5 5 Figure 6 1 Figure 6 2 Figure 6 3 Figure 6 4 Figure 6 5 Figure 6 6 Figure 6 7 Figure 6 8 Figure 6 9 Figure 6 10 Figure 6 11 Figure 6 12 Figure 6 13 Figure 6 14 Figure 6 15 Figure 6 16 Figure 6 17 Figure 6 18 Figure 6 19 Figure 6 20 List of Figures AFG3000 Series Dimensions 1 11 RM3100 Rackmount Dimensions 1 11 GO EAEE 2 2 Output and Input 2 3 USC Ad APLER A a 2 3 Grounding equivalent amp 2 4 Front panel controls 2 8 Rear panel 2 9 Screen interface voca bead aie one dae E eet ee 2 10 AFG3000 Series block diagram 3 2 Frequency Period tests
16. Amplitude AFG325X CF 2 1 50 Q Measurement CH1 Amplitude 1 500 Vrms at 1 00 kHz 0 030 Vrms at 1 00 kHz 30 0 x CF 0 654 mVrms 80 0 x CF 0 654 mVrms 0 300 Vrms at 1 00 kHz 300 0 x CF 3 35 mVrms 300 0x CF 3 35 mVrms 0 800 Vrms at 1 00 kHz 800 0 x CF 8 35 mVrms 800 0 x CF 8 35 mVrms 1 500 x CF 0 0154 Vrms 1 500 x CF 0 0154 Vrms CH2 Amplitude 30 0 mVrms at 1 00 kHz 30 0 x CF 0 654 mVrms 30 0 x CF 0 654 mVrms 300 0 mVrms at 1 00 kHz 300 0 x CF 3 35 mVrms 300 0x CF 3 35 mVrms 800 0 mVrms at 1 00 kHz 800 0 x CF 8 35 mVrms 800 0 x CF 8 35 mVrms 1 500 Vrms at 1 00 kHz 1 500 x CF 0 0154 Vrms 1 500 x CF 0 0154 Vrms DC Offset AFG302X AFG310X CF 2 1 50 Measurement Q CH1 DC Offset 5 000 Vdc 5 000 CF 0 055 Vdc 5 000 x CF 0 055 Vde 0 000 Vdc 0 005 Vdc 40 005 5 000 Vdc 5 000 x CF 0 055 Vdc 5 000 x CF 0 055 Vdc CH2 DC Offset 5 000 Vdc 45 000 x CF 0 055 Vdc 45 000 x CF 0 055 Vdc 0 000 Vdc 0 005 Vdc 40 005 5 000 Vdc 5 000 x CF 0 055 Vdc 5 000 x CF 0 055 Vdc AFG325X CF 2 1 50 CH1 DC Offset 2 500 Vdc 2 500 CF 0 030 Vdc 2 500 x CF 0 030 Vdc 0 000 Vdc 0 005 Vdc 40 005 2 500 Vdc 2 500 x CF 0 030 Vdc 2 500 x CF 0 030 CH2
17. and Haversine Arbitrary Waveform AFG3021 AFG3022 AFG3101 AFG3102 AFG3251 AFG3252 Waveform Length 2 to 65 536 2 to 131 072 2 to 131 072 Sampling Rate 250 MS s Waveform Length lt 16384 Waveform Length lt 16384 1 GS s 2 GS s 16384 lt Waveform Length 16384 lt Waveform Length 250 MS s 250 MS s Resolution 14 bits Number of Non volatile Waveform 4 Memory Table 1 3 Frequency Period Characteristics Description PV reference page Frequency Range AFG3021 AFG3022 AFG3101 AFG3102 AFG3251 AFG3252 Sine 1 mHz to 25 MHz 1 mHz to 100 MHz 1 mHz to 240 MHz Square Pulse 1 mHz to 12 5 MHz 1 mHz to 50 MHz 1 mHz to 120 MHz Ramp Sin x X Gaussian 1 mHz to 250 kHz 1 mHz to 1 MHz 1 mHz to 2 4 MHz Lorentz Exponential Rise Exponential Decay Haversine Arbitrary 1 mHz to 12 5 MHz 1 mHz to 50 MHz 1 mHz to 120 MHz Noise Bandwidth 3 dB 25 MHz 100 MHz 240 MHz typical Resolution 1 uHz or 12 digits v Accuracy Stability 1 ppm 0 C to 50 page 4 19 AFG3000 Series Arbitrary Function Generators Service Manual Specifications Table 1 3 Frequency Period cont Characteristics Description reference page Accuracy Aging 1 ppm year 1 Triggered Gated Burst Mode AFG3021 AFG3022 1 mHz to 12 5 MHz AFG3101 AFG3102 1 mHz to 50 MHz AFG3251 AFG3252 1 mHz to 120 MHz Table 1 4 Phase except DC Noise and Pulse Range 180 00 to 180 00 Resolution 0 01 sine 0 1 other standard
18. 1 mHz lt frq lt 1 MHz 1 mHz lt frq lt 1 MHz page 4 26 at 1 0 Vo amplitude lt 70 dBc lt 60 dBc lt 60 dBc 20 kHz lt frq lt 1 MHz 1 MHz lt frq lt 5 MHz 1 MHz lt frq lt 5 MHz lt 60 dBc lt 50 dBc lt 50 dBc 1 MHz lt frq lt 10 MHz 5 MHz lt lt 100 MHz 5 MHz lt frq lt 25 MHz lt 50 dBc lt 37 dBc 37 dBc 10 MHz x frq lt 25 MHz 25 MHz lt frq lt 240 MHz 40 dBc lt 30 dBc v Total Harmonic Distortion DC to 20 kHz lt 0 2 page 4 28 at 1 Vp p amplitude v Spurious non harmonic 1 mHz lt frq lt 1 MHz 1 mHz lt frq lt 1 MHz 1 mHz lt frq lt 1 MHz page 4 30 at 1 Vp p amplitude lt 60 dBc lt 60 dBc lt 50 dBc 1 MHz lt frq lt 25 MHz 1 MHz lt frq 25 MHz 1 MHz lt frq 25 MHz 50 dBc lt 50 dBc 47 dBc 25 MHz lt frq lt 100 MHz 25 MHz lt x 240 MHz 50 dBc 6 dBc oct 47 dBc 6 dBc oct Phase Noise typical 20 MHz 110 dBc Hz at 10 kHz offset at 1 Vp p amplitude Residual Clock Noise typical 63 dBm 57 dBm 57 dBm Square Wave AFG3021 AFG3022 AFG3101 AFG3102 AFG3251 AFG3252 Rise Time Fall Time lt 18ns lt 5ns lt 2 5ns page 4 33 Jitter rms typical 500 ps 200 ps 100 ps Pulse AFG3021 AFG3022 AFG3101 AFG3102 AFG3251 AFG3252 Pulse Width 30 ns to 999 s 8 ns to 999 s 4 ns to 999 s Resolution 10 ps or 4 digits Pulse Duty 0 1 to 99 9 Leading Edge Trailing Edge 18 ns to 5 ns to 2 5 ns to transition time 0 625 Pulse Period 0
19. 200 mV div 5 ns div lt 18 ns Square 10 00 MHz 0 0 V 10 0 200 mV div 5 ns div lt 18 ns with x10 attenuator AFG310x Oscilloscope Measurement Function Frequency Offset Amplitude Vertical Horizontal Limit Square 10 00 MHz 0 0 V 0 1 Vp 20 mV div 2 ns div lt 5ns Square 10 00 MHz 0 0 V 1 0 Vo 200 mV div 2 ns div lt 5ns Square 10 00 MHz 0 0 V 10 0 Vp 200 mV div 2 ns div lt 5ns with x10 attenuator AFG325x Oscilloscope Measurement Function Frequency Offset Amplitude Vertical Horizontal Limit Square 10 00 MHz 0 0 V 0 1 Mo 20 mV div 1 ns div lt 2 5ns Square 10 00 MHz 0 0V 1 0 Vy 200 mV div 1 ns div lt 2 5ns Square 10 00 MHz 0 0 V 5 0 Vpop 1 0 V div 1 ns div lt 2 5ns 5 AFG3xx2 only Repeat steps 2 through 4 for the channel 2 output 4 34 AFG3000 Series Arbitrary Function Generators Service Manual Adjustment Procedures Adjustment Procedures Purpose Adjustment Interval Adjustment After Repair This section describes the procedures necessary to manually adjust the AFG3000 Series Arbitrary Function Generators Execute each adjustment when you exchange a circuit board This procedure returns the arbitrary function generator to compliance with its Warranted Characteristics as listed in Specification section It can also be used to optimize the performance of the arbitrary function generator Generally these adjustments should be done every
20. 3 MHz 5 Push the CH1 Sine Pulse x x MHz Gain menu button 6 Adjust the Spurious Gain value with the rotary knob to minimize the spurious on the spectrum analyzer screen 7 Push the CH1 Sine x x MHz Phase menu button 8 Adjust the Spurious Phase value with the rotary knob to minimize the spurious on the spectrum analyzer screen 9 Push the button Repeat steps 4 through 8 to minimize the spurious display on the spectrum analyzer screen for each frequency of the Sine Pulse x x MHz 10 AFG3xx2 only Repeat steps 2 through 9 for the channel 2 output 11 Push the button and the Save menu button to save the adjusted value AFG3000 Series Arbitrary Function Generators Service Manual 5 9 Adjustment Procedures Trigger delay adjustment 5 10 This procedure adjusts trigger timing of two channels This adjustment is not necessary in AFG3021 AFG3101 and AFG3251 1 Connect the arbitrary function generator to the oscilloscope as shown in Figure 5 5 AFG3000 series Oscilloscope Figure 5 5 Trigger delay adjustment 50 Q BNC coaxial cable 2 Push the Default front panel button and OK menu button to recall the arbitrary function generator default setup 3 Set up the arbitrary function generator using the following steps Select menu Sett
21. 3rd 4th 5th Nth Reference Frequency Reference 1 MHz 5 00 MHz 10MHz 20kHz 1 MHz 2 MHz 3 MHz 4 MHz 5 MHz lt 50 dBc 5 MHz 10 MHz 20 MHz 20 2 5 MHz 10 MHz 15 MHz 20 MHz 25 MHz lt 37 dBc 25 MHz 50 MHz 20 kHz 25 MHz 125 MHz 250 MHz 20 kHz 25 MHz 50 MHz 75 MHz 100 MHz 125 MHz lt 37 dBc 100 MHz 500 MHz 1GHz 100 kHz 100 MHz 200 MHz 300 MHz 400 MHz 500 MHz lt 37 dBc AFG325x Spectrum Analyzer Measurement Limit Frequency Center Span RBW Fundamental 2nd 3rd 4th 5th Nth Reference Frequency Reference 1 MHz 5 00 MHz 10MHz 20kHz 1 MHz 2 MHz 3 MHz 4 MHz 5 MHz lt 50 dBc 5 MHz 10 MHz 20 MHz 20 2 5 MHz 10 MHz 15 MHz 20 MHz 25 MHz lt 37 dBc 25 MHz 50 MHz 20 kHz 100 MHz 500 MHz 1GHz 100 kHz 100 MHz 200 MHz 300 MHz 400 MHz 500 MHz lt 30 dBc 240 MHz 625MHz 1 25 GHz 100 kHz 240 MHz 480 MHz 720 MHz 960 MHz 1 20 GHz lt 30 dBc AFG3xx2 only Repeat steps 2 through 6 for the channel 2 output AFG3000 Series Arbitrary Function Generators Service Manual 4 27 Performance Verification Total Harmonic Distortion Test This test verifies the total harmonic distortion THD using a spectrum analyzer 1 Connect the arbitrary function generator to the spectrum analyzer as shown in Figure 4 8 Spectrum analyzer WCA280A AFG3000 series FESO
22. 407 5043 00 342 1135 00 342 1135 00 671 5973 XX 671 5842 XX 671 6052 XX 671 5955 XX 671 6083 XX 671 6084 XX 441 2371 00 202 041 1 00 202 0435 00 367 0538 00 650 4827 00 650 4828 00 Model AFG3021 AFG3022 3101 3102 3251 3252 AFG3021 3022 3101 3102 3251 3252 AFG3021 3022 3101 3102 3251 3252 AFG3021 3022 3101 3102 3251 3252 AFG3021 AFG3022 AFG3101 AFG3102 AFG3251 AFG3252 AFG3021 3101 3251 AFG3022 3102 3252 AFG3021 3101 3251 AFG3022 3102 3252 AFG3021 3022 3101 3102 3251 3252 AFG3021 3022 3101 3102 3251 3252 AFG3021 3101 3251 AFG3022 3102 3252 AFG3021 AFG3022 AFG3101 AFG3102 AFG3251 AFG3252 AFG3021 3022 3101 3102 3251 3252 AFG3021 3022 AFG3101 3102 3251 3252 AFG3021 3022 3101 3102 3251 3252 AFG3021 3022 AFG3101 3102 3251 3252 Serial Serial dis effective cont d Replaceable Parts Refer to Figure 9 1 on page 9 6 Qty Name amp description 40 40 42 44 42 44 FRAME ASSEMBLY DISPLAYMONO FRAME ASSEMBLY DISPLAY COLOR GASKET SHLD ELEK PU FORM 60MM L W 3M 467MP BACKSIDE TOURBILLON LCD CABLE EMI GASKET GROUNDING 0 320 1 X 0 365 W 2 CONTACTS X 0 110 DEEPELECTROLESS NICKEL PLATE CHASSIS ASSY MAIN 0 039 EG STEEL SCREW MACHINE 6 32 X 0 250 PNH STL ZNPL T 15 TORX DR SCREW MACHINE 6 32 X 0 250 PNH STL ZNPL T 15 TORX DR SCREW MACHINE 6 32 X 0 250 PNH STL ZNPL T 15
23. 5 Oscilloscope 1 GHz Bandwidth Tektronix TDS5104B Checks output signals Used in 50 Q input termination multiple procedures 6 Spectrum Analyzer 20 kHz to 1 25 GHz Tektronix RSA3303A Checks output signals Harmonics Spurious 7 BNC Coaxial Cable 50 Q male to male BNC connector Tektronix part number Signal interconnection 3 required 91 cm 012 0482 00 8 BNCterminator 50 19 2W DC to 1GHz BNC Tektronix part number Signal termination 011 0049 01 9 Attenuator 2 required 50 2 x10 BNC Tektronix part number Signal attenuation 011 0059 02 10 Adapter Dual Banana BNC female to dual banana Tektronix part number Signal interconnection to a Plug 103 0090 00 DMM 11 Adapter BNC fe N ma BNC female to N male Tektronix part number Signal interconnection to a 103 0045 00 Spectrum Analyzer AFG3000 Series Arbitrary Function Generators Service Manual Test Record Performance Verification Photocopy this test record and use to record the performance test results for your AFG3000 Series Arbitrary Function Generators Excel spreadsheet Test record with embedded calculation formulas is also available in standard accessory document CD P N 063 3828 xx AFG3000 Series Performance Test Record Instrument Serial Number Certificate Number Temperature RH 96 Date of Calibration Technician AFG3000 Series Performance Test Record Minimum Test result Maximum Frequency
24. A32 A42 A51 A61 1401 CH1 ASIC TINT calibration failure A1x A3x A4x A51 A61 1402 2 ASIC TINT calibration failure A12 A32 A42 A51 A61 1403 CH1 ASIC SGEN calibration failure A1x A3x A4x A51 A61 1404 CH2 ASIC SGEN calibration failure A12 A32 A42 A51 A61 1405 CH1 ASIC clock duty calibration failure A1x A3x A4x A51 A61 1406 CH2 ASIC clock duty calibration failure A12 A32 A42 A51 A61 AFG3000 Series Arbitrary Function Generators Service Manual Table 6 4 Error codes cont Troubleshooting Error code Description Related module Diagnostics 2100 Calibration data not found A70 A72 2101 Calibration data checksum 70 72 2102 Calibration data invalid 70 72 2201 ASIC1 memory failure A1x A3x A4x 2202 ASIC2 memory failure A12 A32 A42 2203 ASIC1 Overheat A1x A3x A4x 2204 ASIC2 Overheat A12 A32 A42 Output Diagnostics 2301 CH1 Internal offset failure A1x A3x A4x 2302 CH2 Internal offset failure A12 A32 A42 2303 CH1 Output offset failure A1x A3x A4x A51 A61 2304 CH2 Output offset failure A12 A32 A42 A51 A61 2305 CH1 Output gain failure A1x A3x A4x A51 A61 2306 CH2 Output gain failure A12 A32 A42 A51 A61 2401 CH1 x3dB attenuator failure A1x A3x A4x 2402 CH2 x3dB attenuator failure A12 A32 A42 2403 CH1 x6dB attenuator failure A1x A3x A4x 2404 CH2 x6dB attenuator failure A12 A32 A42 2405 CH1 x10dB attenuator failure A1x A3x A4x 2406 CH2 x10dB at
25. AFG3000 Series Arbitrary Function Generators as well as general information that is critical to safe and effective servicing To prevent personal injury or damage to the arbitrary function generator consider the following before attempting service The procedures in this manual should be performed only by a qualified service person B Read the General Safety Summary on page vii and the Service Safety Summary beginning on page Read Installation in Operating Information on page 2 2 When using this manual for servicing be sure to follow all warnings cautions and notes Performance Verification Procedures The performance check described in the Performance Verification section should be done every 12 months In addition a performance check is recommended after module replacement If the AFG3000 Series does not meet performance criteria repair is necessary Strategy for Servicing Throughout this manual the term module refers to any field replaceable component assembly or part of the arbitrary function generator This manual contains the information needed for periodic maintenance of the arbitrary function generator Further it contains information for corrective maintenance down to the module level To isolate a failure to a module use the troubleshooting procedures found in the Maintenance section To remove and replace any failed module follow the instructions in the Removal and Installation Procedures su
26. BNC connector c Push the CHI Add Input BNC connector and the insulator bushing to remove them from the rear sub panel AFG3000 Series Arbitrary Function Generators Service Manual Removal and Installation Procedures 3 AFG3022 AFG3102 AFG3252 only Remove the EXT Modulation CH2 Input BNC connector Disconnect the Peltola cable at 7852 on the CPU board b Use the 16 mm 5 8 inch deep socket to remove the nut and the spring washer from the BNC connector Push the EXT Modulation CH2 Input BNC connector and the insulator bushing to remove them from the rear sub panel 4 Remove the nuts and wave washers of the EXT Modulation CHI Input the Ext Ref Input and the Ext Ref Output connectors These connectors are mounted on the CPU board a Use the 16 mm 5 8 inch deep socket to remove the nuts and the spring washers from these BNC connectors GPIB hex screws and washers CH1 Add Input 5 SL EXT Modulation CH2 Input Insulator Nut and spring washer Figure 6 15 Remove the BNC connectors Disconnect the AC input cable at 7860 on the CPU board Disconnect the A75 Key Board cable at 7300 on the CPU board 7 Remove the three screws from the bottom side that attach the CPU board to the rear sub panel 8 Remove the CPU board from the rear sub panel AC input cable Es 7 Figure 6 16 CPU board removal Installation To install reverse this procedure
27. CH1 190 in 9 A11 A12 IV Ext J850 Tri Mod 198 Fou Iv Ext Ref 854 CH1 v 1832 150 J400 Output WV J 100 i Er Du 1 EE ACRI ae E EE J 902 USB 1502 A70 CPU USB 1510 bego J 860 J866 J862 0900 1920 1300 1400 4404 SW S800 E E Eco A eea B RA EU PIS co J400 GO ele AC IN MEET IE cp inverter Power Supply Unit FAN 1 Front L US ses y Panel Board Display 1 1 1 moi 1 Figure 8 1 Interconnection for AFG302x 8 2 AFG3000 Series Arbitrary Function Generators Service Manual Diagrams 1 2 1 A32 A42 i J780 nm J 790 1 Filter amp Output Amplifier 1 DC offset J800 CH i Output 1 1300 Y 1 i 1 Ll 1 I J 852 Ext Mod Ch2 In cH J 190 Men E Ext J850 Trigger Mod 1198 9 GO Sie 1380 390 Iv xt Re J854 A51 A61 In ass SEG Filter amp Output Amplifier J 400 CH1 M DC offset Output Ext Ref V 1300 ADD In j USB A72 CPU J600 LAN 4700 J860 1866 J862 0900 920 J 300 J 400 J404 SW S800 EE sb Ee ER EM ea d AC IN B ne x EE 1 LCD Inverter Power Supply Unit FAN A75Front LCD
28. DC Offset 2 500 42 500 x CF 0 030 Vdc 42 500 x CF 0 030 0 000 Vdc 0 005 Vdc 40 005 2 500 Vdc 2 500 x CF 0 030 Vdc 2 500 x CF 0 030 Vdc AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification AFG3000 Series Performance Test Record cont AC Flatness AFG302X CH1 AC Flatness Frequency 10000 7 dB Reference Ampl 4 0 dBm Frequency 500 00 kHz Reference 0 15 dB dB Reference 0 15 dB Frequency 1 00 MHz Reference 0 15 dB dB Reference 0 15 dB Frequency 5 00 MHz Reference 0 30 dB dB Reference 0 30 dB Frequency 15 00 MHz Reference 0 30 dB dB Reference 0 30 dB Frequency 25 00 MHz Reference 0 50 dB dB Reference 0 50 dB 2 Flatness Frequency 100 00kKHZ 7 Reference Ampl 4 0 dBm Frequency 500 00 kHz Reference 0 15 dB dB Reference 0 15 dB Frequency 1 00 MHz Reference 0 15 dB dB Reference 0 15 dB Frequency 5 00 MHz Reference 0 30 dB dB Reference 0 30 dB Frequency 15 00 MHz Reference 0 30 dB dB Reference 0 30 dB Frequency 25 00 MHz Reference 0 50 dB dB Reference 0 50 dB AFG3000 Series Arbitrary Function Generators Service Manual 4 7 Performance Verification AFG3000 Series Performance Test Record cont AC Flatness AFG310X CH1 AC Flatness
29. Display Eo mona Panel Board 1 1 1 1 1 Figure 8 2 Interconnection for AFG310x and AFG325x AFG3000 Series Arbitrary Function Generators Service Manual 8 3 Diagrams 8 4 AFG3000 Series Arbitrary Function Generators Service Manual Replaceable Parts Replaceable Parts This section contains a list of the replaceable modules for the AFG3000 Series Arbitrary Function Generators 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 instruments are sometimes made to accommodate improved components as they become available and to give you the benefit of the latest circuit improvements Therefore when ordering parts it is important to include the following information your order B Part number Instrument type or model number Instrument serial number 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 AFG3000 Series Arbitrary Function Generators Service Manual 9 1 Replaceable Parts Using the Replaceable Parts List This section contains a list of the mechanical and or electrical components that are replaceable for the arbitrary function generator Use this list to
30. Frequency 100 00 kHz dB Reference Ampl 4 0 dBm Frequency 1 00 MHz Reference 0 15 dB dB Reference 0 15 dB Frequency 5 00 MHz Reference 0 30 dB dB Reference 0 30 dB Frequency 25 00 MHz Reference 0 50 dB dB Reference 0 50 dB Frequency 50 00 MHz Reference 0 50 dB dB Reference 0 50 dB Frequency 100 0 MHz Reference 0 50 dB dB Reference 0 50 dB CH2 AC Flatness 10000 dB Reference Ampl 4 0 dBm Frequency 1 00 MHz Reference 0 15 dB dB Reference 0 15 dB Frequency 5 00 MHz Reference 0 30 dB dB Reference 0 30 dB Frequency 25 00 MHz Reference 0 50 dB dB Reference 0 50 dB Frequency 50 00 MHz Reference 0 50 dB dB Reference 0 50 dB Frequency 100 0 MHz Reference 0 50 dB dB Reference 0 50 dB 4 8 AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification AFG3000 Series Performance Test Record cont AC Flatness AFG325X CH1 AC Flatness Frequency 100 00 kHz 7 dB Reference Ampl 4 0 dBm Frequency 1 00 MHz Reference 0 15 dB dB Reference 0 15 dB Frequency 5 00 MHz Reference 0 30 dB dB Reference 0 30 dB Frequency 25 00 MHz Reference 0 50 dB dB Reference 0 50 dB Frequency 50 00 MHz Reference 0 50 dB dB Reference 0 50 dB Frequency 100 0 MHz Reference 1 00 dB dB Reference 1 00 dB Freq
31. Remember to attach the wave washers and the insulator bushings AFG3000 Series Arbitrary Function Generators Service Manual 6 19 Removal and Installation Procedures A82 BNC Insulator board You will need a torque limiting Torx 15 screwdriver a torque wrench and a 16 mm 5 8 inch deep socket Removal To remove the A82 BNC Insulator board follow these steps 1 Remove the CH1 Add Input BNC connector and the EXT Modulation CH2 Input BNC connector using the procedures on page 6 18 2 Remove the nuts and wave washers of the EXT Modulation CH1 Input the Ext Ref Input and the Ext Ref Output connectors using the procedures on page 6 19 3 Remove the three screws that attach the A82 BNC Insulator board to the rear sub panel 4 Remove the A82 BNC Insulator board from the rear sub panel installation To install reverse this procedure Generator board You will need a torque limiting Torx T 15 screwdriver Removal To remove the generator board refer to Figure 6 17 and follow these steps 1 Remove the six screws attaching the Generator board to main chassis 2 Remove the two screws attaching the Generator board to main chassis from the bottom side 3 Remove the Generator board from the main chassis Figure 6 17 Generator board removal Installation To install reverse this procedure 6 20 AFG3000 Series Arbitrary Function Generators Service Manual Removal and Installation Procedures A81 BNC Insulat
32. Sine front Frequency 20 00 kHz AFG302x Frequency Period front 1 000 MHz AFG310x 1 000 MHz AFG325x Amplitude Units Vpp TopMenu gt Amplitude Level Menu gt more gt Units gt Vpp Amplitude 1 00 Vpp Amplitude High front Channel 1 Output On On front 4 Set up the spectrum analyzer according the frequency setup of the arbitrary function generator 5 Read the signal level in the Fundamental frequency for each signal Use this level as a Reference value in step 6 6 Verify that the differences between the reference level and the signal level in the frequency of higher order at each frequency are below the limit specified in the following tables 4 26 AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification AFG302x Spectrum Analyzer Measurement Limit Frequency Center Span RBW Fundamental 2nd 3rd 4th 5th Nth Reference Frequency Reference 20 00 kHz 100kHz 200kHz 500Hz 20 kHz 40 kHz 60kHz 80kHz 100 kHz lt 60 dBc 100 00 kHz 500 kHz 1 MHz 2 kHz 100 kHz 200 kHz 300kHz 400 kHz 500 kHz lt 60 dBc 1 00 MHz 5 00 MHz 10MHz 20kHz 1 MHz 2 MHz 3 MHz 4 MHz 5 MHz lt 50 dBc 25 00 MHz 125 MHz 250 MHz 20 kHz 25 MHz 50 MHz 75 MHz 100 MHz 125 MHz lt 40 dBc AFG310x Spectrum Analyzer Measurement Limit Frequency Center Span RBW Fundamental 2nd
33. Sine at 1 000000 MHz 0 999999 MHz 1 000001 MHz Pulse at 1 000000 MHz 0 999999 MHz 1 000001 MHz Amplitude AFG302X AFG310X CF 2 1 50 Q Measurement Q CH1Amplitude 30 0 mVrms at 1 00 kHz 30 0 x CF 0 654 mVrms 30 0 x CF 0 654 mVrms 300 0 mVrms at 1 00 kHz 300 0 x CF 3 35 mVrms 300 0x CF 3 35 mVrms 800 0 mVrms at 1 00 kHz 800 0 x CF 8 35 mVrms 800 0 x CF 8 35 mVrms 1 500 Vrms at 1 00 kHz 1 500 x CF 0 0154 Vrms 1 500 x CF 0 0154 Vrms 2 000 Vrms at 1 00 kHz 2 000 x CF 0 0204 Vrms 2 000 x CF 0 0204 Vrms 2 500 Vrms at 1 00 kHz 2 500 x CF 0 0254 Vrms 2 500 x CF 0 0254 Vrms 3 500 Vrms at 1 00 kHz 3 500 x CF 0 0354 Vrms 3 500 x CF 0 0354 Vrms CH2 Amplitude 30 0 mVrms at 1 00 kHz 30 0 x CF 0 654 mVrms 80 0 x CF 0 654 mVrms 300 0 mVrms at 1 00 kHz 300 0 x CF 3 35 mVrms 800 0x CF 4 3 35 mVrms 800 0 mVrms at 1 00 kHz 800 0 x CF 8 35 mVrms 800 0 x CF 8 35 mVrms 1 500 Vrms at 1 00 kHz 1 500 x CF 0 0154 Vrms 1 500 x CF 0 0154 Vrms 2 000 Vrms at 1 00 kHz 2 000 x CF 0 0204 Vrms 2 000 x CF 0 0204 Vrms 2 500 Vrms at 1 00 kHz 2 500 x CF 0 0254 Vrms 2 500 x CF 0 0254 Vrms 3 500 Vrms at 1 00 kHz 3 500 x CF 0 0354 Vrms 8 500 x CF 0 0354 Vrms AFG3000 Series Arbitrary Function Generators Service Manual 4 5 Performance Verification AFG3000 Series Performance Test Record cont
34. TORX DR SCREW MACHINE 6 32 X 0 250 PNH STL ZNPL T 15 TORX DR SCREW MACHINE 6 32 X 0 250 PNH STL ZNPL T 15 TORX DR SCREW MACHINE 6 32 X 0 250 PNH STL ZNPL T 15 TORX DR NUT PLAIN HEX 0 5 28 X 0 625 HEX BRS CD PL NUT PLAIN HEX 0 5 28 X 0 625 HEX BRS CD PL WASHER SPRING 0 610 OD X 0 490 ID X 0 007 THK WAVE SHAPE STAINLESS STEEL WASHER SPRING 0 610 OD X 0 490 ID X 0 007 THK WAVE SHAPE STAINLESS STEEL CIRCUIT BD ASSY A81 FRONT BNC INSULATOR 389378300 WIRED BRACKET CONN GENERATOR BD BNC SUPPORT 0 039 EG STEEL INSULATOR BSHG NYLON 0 509 X 0 470 D HOLE X 0 687 OD X 0 035 T INSULATOR BSHG NYLON 0 509 X 0 470 D HOLE X 0 687 OD X 0 035 T CIRCUIT BD ASSY A11 GENERATOR MAIN 389361200 WIRED CIRCUIT BD ASSY A12 GENERATOR MAIN 389361200 WIRED CIRCUIT BD ASSY A31 GENERATOR MAIN 389371800 WIRED CIRCUIT BD ASSY A32 GENERATOR MAIN 389371800 WIRED CIRCUIT BD ASSY A41 GENERATOR MAIN 389371800 WIRED CIRCUIT BD ASSY A42 GENERATOR MAIN 389371800 WIRED CHASSIS REAR 0 039 EG STEEL CASE REAR PC ABS PLASTIC BLEND TEK BLUE SAFETY CONTROLLED CASE REAR 202041100 W METALIZED SAFETY CONTROLLED HANDLE CARRYING OVERMOLDED REAR CASE ASSY 202041100 W FEET amp HANDLE REAR CASE ASSY 202043500 W FEET amp HANDLE AFG3000 Series Arbitrary Function Generators Service Manual 9 3 Replaceable Parts Replaceable Parts List Fig amp index Tektronix number number 1 16 335 1394 00 17 335 1173 00 335 1174 00 335 1283 00 335
35. dBc dBc dBc dBc dBc Nth reference lt 37 dBc Sine 25MHz 25 MHz 50MHz 75MHz 100 MHz 125 MHz CH1 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 37 dBc CH2 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 37 dBc Sine 100 MHz 100 MHz 200 MHz 300 MHz 400 MHz 500 MHz CH1 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 37 dBc CH2 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 37 dBc AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification AFG3000 Series Performance Test Record cont Harmonic Distortion Fundamental 2nd 3rd 4th 5th Limit reference AFG325X Spectrum Analyzer reading Sine 1 MHz 1 MHz 2 MHz 3 MHz 4 MHz 5 MHz CH1 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 50 dBc CH2 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 50 dBc Sine 5 MHz 5 MHz 10MHz 15 2 20 2 25 MHz CH1 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 37 dBc CH2 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dB
36. high quality shielded cables to this instrument High quality shielded cables typically are braid and foil types that have low impedance connection to shielded connectors at both ends 1 10 AFG3000 Series Arbitrary Function Generators Service Manual Specifications CS E 3 1 6 3 a 0 13 0 25 BNC connectors BNC connectors All dimensions are shown 1 24 0 0 95 27 3 1 08 76 _ 0 30 154 4 6 08 54 i 1 0 20 Figure 1 1 AFG3000 Series dimensions 482 6 19 00 _ I 465 5 373 H 18 32 HH 378 1 47 147 N EO I 254 i 1 00 101 6 1762500 O 101 6 ga
37. identify and order replacement parts The following table describes each column in the parts list Parts List Column Descriptions Column Column name Description 1 Figure A Index Number Items in this section are referenced by component number 2 Tektronix Part Number Use this part number when ordering replacement parts from Tektronix 3 Model number This indicates the model that uses this item 4and5 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 partis good for all serial numbers 6 Qty This indicates the quantity of parts used 7 Name amp Description An item name 15 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 Y1 1 1972 9 2 AFG3000 Series Arbitrary Function Generators Service Manual Replaceable Parts List Fig amp index number 9 1 01 02 03 04 05 06 07 08 09 Tektronix part number 650 4605 00 650 4349 01 348 1845 00 131 6363 00 441 2370 00 211 1198 00 211 1198 00 211 1198 00 211 1198 00 211 1198 00 211 1198 00 220 0265 00 220 0265 00 210 1544 00 210 1544 00 671 6070 XX
38. lt 47 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 10 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc 47 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 25 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 47 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 50 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 41 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 100 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 35 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 200 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 29 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 240 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 28 dBc 300 MHz 600 MHz 20 kHz MHz dBc CH2 Spurious Sine 100 kHz 10 MHz 20 MHz 20 kHz MHz dBc 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 1 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 47 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 10 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 47 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 25 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 47 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 50 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 41 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 100 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 35 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 200 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc 59 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 240 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 28 dBc 300 MHz 600 MHz 20 kHz MHz dBc 4 16 AFG3000 Series Arbitrary Function Generators Service Manual AFG3000 Series Performance Test Record Performance Verification
39. menu You must enable the service mode to perform the adjustment procedure Do the following steps to enter the service mode 1 Push the power button to power on the arbitrary function generator 2 After the beep push the front panel Recall button and then push the front panel 7 numeric button 3 Keep pushing these buttons until the power on screen is displayed 4 Release the buttons when the top screen is displayed 5 Check whether the service mode is available by pushing the Utility gt more gt more buttons Service Menu is displayed in the third page of Utility menu You can adjust the Reference Clock LF Flatness Spurious and Trigger Delay parameters on the Manual Calibration that is described in this section Each of changed parameters is stored in non volatile memory of the arbitrary function generator after you push the Save menu in the first page of Manual Calibration Previous adjustment parameters will be recalled after a power cycle unless you push the Save menu button The Clear CAL Data menu in the second page of Manual Calibration clears all the current adjustment parameters and sets them to O But unless you push the Save menu button the previous adjustment parameters will be recalled after a power cycle AFG3000 Series Arbitrary Function Generators Service Manual 5 3 Adjustment Procedures Reference Clock This procedure adjusts the frequency accuracy of the arbitrary function generator
40. preventing damage to internal modules when doing maintenance Inspection and Cleaning Information and procedures for inspecting the arbitrary function generator and cleaning its external and internal modules Removal and Installation Procedures Procedures for the removal of defective modules and replacement of new or repaired modules Troubleshooting Information for isolating failed modules Information for isolating failed modules Included are instructions for operating the internal diagnostic routines of the arbitrary function generator and troubleshooting trees Most of the trees make use of these internal diagnostic routines to speed fault isolation to a module Preparation Only qualified person should perform service procedures Before performing any service procedures read the Safety Summary and General Safety Summary section of this manual and the ESD information below Also refer to the Operating Information section and your arbitrary function generator user manual for information about using the arbitrary function generator Preventing ESD When performing any service that requires internal access to the arbitrary function generator adhere to the following precautions These precautions will help you avoid damaging internal modules and their components due to electrostatic discharge ESD CAUTION Static discharge can damage any semiconductor component in this arbitrary function generator Mi
41. the front case using the procedures on page 6 12 2 Remove the seven screws attaching the A75 front panel board to the main chassis 3 Disconnect the front panel board cable 6 12 AFG3000 Series Arbitrary Function Generators Service Manual Removal and Installation Procedures gt A Front panel board cable d 5 Figure 6 6 75 front panel board removal Installation To install reverse this procedure Display module You will need a torque limiting Torx 15 screwdriver and tweezers Removal To remove the display module refer to Figure 6 7 and follow these steps 1 Use tweezers or needle nose pliers to disconnect the backlight cable at the Inverter unit located near the fan unit 2 Remove the four screws attaching the display module to the main chassis 3 Disconnect the display cable at on the back side of the display module Backlight cable connector Figure 6 7 Display module removal Installation To install reverse this procedure AFG3000 Series Arbitrary Function Generators Service Manual 6 13 Removal and Installation Procedures Output board AFG310x AFG325x You will need a torque limiting Torx 15 screwdriver Removal To remove the output board refer to Figure 6 8 and follow these steps 1 Disconnect the two peltola cables at J100 CH1 from J380 CH2 from 7780 and 170 CH1 from J390 CH2 from J790 on the output board 2 Remove the two screws attac
42. 0 2 Align the fan with the fan bracket Align the fan so that air blows out the side of the chassis not into the chassis 3 Use the pliers to bend the two fan bracket tabs into place and secure the fan AFG3000 Series Arbitrary Function Generators Service Manual 6 17 Removal and Installation Procedures Power supply A70 A72 CPU board 6 18 You will need a torque limiting Torx 15 screwdriver Removal To remove the power supply module refer to Figure 6 14 and follow these steps 1 Remove the fan using the procedures on page 6 17 2 Disconnect the three cable connectors at J866 J862 and J900 3 Remove the four screws attaching the power supply module and the insulator to the rear sub panel Figure 6 14 Power supply removal installation To install reverse this procedure You will need a torque limiting Torx 15 screwdriver a torque wrench a 16 mm 5 8 inch deep socket 7 mm socket and needle nose pliers Removal To remove the CPU board refer to Figure 6 15 and follow these steps 1 AFG3101 AFG3102 AFG3251 AFG3232 only Use the 7 mm socket torque wrench to remove the two hex screws and the two washers attaching the GPIB connector to the rear sub panel 2 AFG3101 AFG3102 AFG3251 AFG3252 only Remove the CH1 Add Input BNC connector Disconnect the peltola cable at J370 on the Generator board b Use the 16 mm 5 8 inch deep socket to remove the nut and the wave washer from the
43. 1175 00 18 348 1791 00 19 348 1703 00 20 174 5154 00 174 5154 00 21 174 5153 00 174 5153 00 22 650 4806 00 650 4806 00 650 4807 00 650 4807 00 23 366 0840 00 24 348 1839 00 25 211 1143 00 26 276 0324 00 27 174 4658 00 174 5231 00 28 671 5817 XX 29 260 2797 00 30 348 1525 00 31 202 0410 00 202 0434 00 32 335 1171 00 335 1172 00 33 366 0841 00 Serial Serial dis Model effective cont d AFG3021 3022 3101 3102 3251 3252 AFG3021 AFG3022 AFG3101 3251 AFG3102 3252 AFG3021 3022 3101 3102 3251 3252 AFG3021 3022 3101 3102 3251 3252 AFG3101 3251 AFG3102 3252 AFG3101 3251 AFG3102 3252 AFG3101 AFG3102 AFG3251 AFG3252 AFG3021 3022 3101 3102 3251 3252 AFG3101 3102 3251 252 AFG3021 3022 3101 3102 3251 3252 AFG3101 3102 AFG3021 3022 3101 3102 AFG3251 3252 AFG3021 3022 3101 3102 3251 3252 AFG3021 3022 3101 3102 3251 3252 AFG3021 3022 3101 3102 3251 3252 AFG3021 3022 3101 3102 AFG3251 3252 AFG3021 3101 3251 AFG3022 3102 3252 AFG3021 3022 3101 3102 3251 3252 Refer to Figure 9 1 on page 9 6 Qty 8 description 1 LABEL MANUFACTURED PRODUCT ID 2 5 IN X 1 5 IN SAFETY CONTROLLED MARKER IDENT LABEL REAR PANEL 2 05 X 9 51 0 010 PC FILM LEXAN W ADHESIVE BACK SAFETY CONTROLLED AFG3021 MARKER IDENT LABEL REAR PANEL 2 05 X 9 51 0 010 PC FILM L
44. 12 months After the removal and replacement of a module due to electrical failure perform the adjustment procedure in this section The table below lists the adjustment items that should be performed after repair Table 5 1 Adjustments performed after repair Adjustment AFG3021 AFG3022 AFG3101 AFG3102 AFG3251 AFG3252 70 CPU A11 A12 Generator A72 CPU A31 A32 A41 A42 A51 A61 Output Generator Reference Clock X X X X LF X X X Flatness X X X X X Spurious X X X X X Trigger Delay X X X X AFG3000 Series Arbitrary Function Generators Service Manual 5 1 Adjustment Procedures Equipment Required Table 5 2 Test equipment Description 1 Digital Multi Meter DMM Table 5 2 lists the equipment that is required to complete the adjustment procedures Minimum requirements AC volts true rms AC coupled Accuracy 0 02 to 1 MHz DC volts Accuracy 50 ppm resolution 100uV Resistance Accuracy 0 05 Q Recommended equipment Agilent 3458A Purpose Measures voltage Used in multiple procedures 2 Power Meter 100 kHz to 250 MHz R amp S NRVS Measures voltage Used in 1 uW to 100 mW 30 dBm to 20 dBm multiple procedures Accuracy 0 02 dB Resolution 0 01 dB 3 Power Head 100 kHz to 250 MHz R amp S NRV Z5 Measures voltage Used in 1 uW to 100 mW 30 dBm to 20 dBm multiple procedures 4 Frequency Counter 50 kHz to 5 GHz Agilent 53132A Checks clock fr
45. 2 THD In Sample reading 1 5 dBm 58 5 dBm 58 5 dBm 63 5 dBm 58 5 dBm 63 5 dBm 63 5 dBm reading reference 0 60 dBm 60 dBm 65 dBm 60 dBm 65 dBm 65 dBm C 1 000 0 001 0 001 0 000562 0 001 0 000562 0 000562 Limit E Gy 0 1987 lt 0 2 THD in 2 NOTE When all the harmonic components are 62dBm or less the calculation of THD be skipped because it is THD lt 0 2 7 Verify that the THD is less than 0 2 8 AFG3000 Series Arbitrary Function Generators Service Manual AFG3xx2 only Repeat steps 2 through 7 for the channel 2 output 4 29 Performance Verification Spurious Test This test verifies the spurious using a spectrum analyzer 1 Connect the arbitrary function generator to the spectrum analyzer as shown in Figure 4 9 Spectrum analyzer WCA280A AFG3000 series CH1 Output BNC Fe N Ma adapter 50 BNC coaxial cable Figure 4 9 Spurious tests 2 Set up the arbitrary function generator using the following steps Select menu Setting Operation Function Sine Sine front Frequency 100 00 kHz Frequency Period front Amplitude Units Vpp TopMenu gt Amplitude Level Menu gt more gt Units gt Vpp Amplitude 1 00 Vpp Amplitude High front Channel 1 Output On On front 3 Set the center
46. 25 00 MHz Reference 0 50 Sine 4 0dBm 50 00 MHz Reference 0 50 Sine 4 0 dBm 100 00 MHz Reference 0 50 AFG325x Measurement Range Function Amplitude Frequency dB dB Sine 4 0 dBm 100 00 kHz Reference Sine 4 0 dBm 1 00 MHz Reference 0 15 Sine 4 0 dBm 5 00 MHz Reference 0 30 Sine 4 0 dBm 25 00 MHz Reference 0 50 Sine 4 0dBm 50 00 MHz Reference 0 50 Sine 4 0 dBm 100 00 MHz Reference 1 00 Sine 4 0dBm 150 00 MHz Reference 1 00 Sine 4 0 dBm 240 00 MHz Reference 2 00 6 AFG3xx2 only Repeat steps 3 through 5 for the channel 2 output AFG3000 Series Arbitrary Function Generators Service Manual 4 25 Performance Verification Harmonics Distortion Test This test verifies the harmonic distortion using a spectrum analyzer 1 Connect the arbitrary function generator to the spectrum analyzer as shown in Figure 4 7 Spectrum analyzer WCA280A AFG3000 series PON j CH1 beei BNC Fe N Ma adapter 50 BNC coaxial cable Figure 4 7 Harmonic distortion tests 2 Push the Default front panel button and OK menu button to recall the arbitrary function generator default setup 3 Set up the arbitrary function generator using the following steps Select menu Setting Operation Function Sine
47. 625 Pulse Period 0 625 Pulse Period Resolution 10 ps or 4 digits Overshoot typical lt 5 Jitter rms typical 500 ps 200 ps 100 ps Ramp Linearity lt 0 1 of peak output lt 0 15 of peak output lt 0 2 of peak output at Frequency 1 kHz at 10 90 of ampli at 10 90 of amplitude at 10 90 of amplitude Amplitude 1 Vp p tude range range range Symmetry 100 Symmetry 0 to 100 AFG3000 Series Arbitrary Function Generators Service Manual 1 5 Specifications Table 1 9 Output Characteristics cont Characteristics Description PVreference page Arbitrary AFG3021 AFG3022 AFG3101 AFG3102 AFG3251 AFG3252 Rise Time Fall Time typical lt 20ns lt 8ns lt 3ns Jitter rms typical 4ns 1ns 500 ps 1 Exclude harmonics and channel crosstalk Table 1 10 Modulation Characteristics Description AM Amplitude Modulation Carrier Waveforms Standard waveforms except Pulse DC and Noise and Arb Modulation Source Internal or External Internal Modulating Sine Square Ramp Noise and Arb Waveforms Internal Modulating 2 mHz to 50 00 kHz Frequency Depth 0 0 to 120 0 FM Frequency Modulation AFG3021 AFG3022 AFG3101 AFG3102 AFG3251 AFG3252 Carrier Waveforms Standard waveforms except Pulse DC and Noise and Arb Modulation Source Internal or External Internal Modulating Waveforms Sine Square Ramp Noise and Arb Internal Modulating Fr
48. AFG3000 Series Arbitrary Function Generators Service Manual 6 15 Removal and Installation Procedures Inverter You will need needle nose pliers and tweezers Removal To remove the Inverter refer to Figure 6 11 and follow these steps 1 Use needle nose pliers to bend the two Inverter bracket tabs out of the way 2 Remove the Inverter board 3 Disconnect the Inverter cable from the CPU board Figure 6 11 Inverter removal Installation To install refer to Figure 6 12 and follow these steps 1 Connect the Inverter cable from the CPU board at J404 2 Align the Inverter board with the Inverter bracket Make sure that the two hooks on the Inverter bracket with the two holes on the Inverter board 3 Use the pliers to bend the two Inverter bracket tabs into place and secure the Inverter board hole Inverter bracket tabs Figure 6 12 Inverter installation 6 16 AFG3000 Series Arbitrary Function Generators Service Manual Removal and Installation Procedures Fan You will need needle nose pliers and tweezers Removal To remove the fan refer to Figure 6 13 and follow these steps 1 Use needle nose pliers to bend the two fan bracket tabs out of the way 2 Remove the fan 3 Disconnect the fan cable from the CPU board Fan bracket tabs Figure 6 13 Fan removal Installation To install the fan follow these steps 1 Connect the fan cable to the CPU board at J92
49. AFG3000 series DMM CH1 Output 50 BNC coaxial cables 50 Q terminator BNC Dual banana adapter Figure 5 2 LF adjustment 2 Set up the arbitrary function generator using the following steps Select menu Setting Operation Function Sine Sine front Frequency 10 00000 kHz AFG310x Frequency Period front 100 00000 kHz AFG325x Load Impedance 500 TopMenu gt Output Menu gt Load Impedance gt 500 Amplitude 1 00 Vpp Amplitude High front Channel 1 Output On On front 3 Set the DMM voltage unit to VAC effective voltage 4 Record the DMM voltage reading AFG Function Frequency DMM reading AFG310x Sine 10 00000 kHz CH1 CH2 AFG325x Sine 100 00000 kHz CH1 CH2 5 Set the AFG3000 Series frequency to 100 000 Hz 6 Push the Utility gt more gt more gt Service Menu gt Manual Calibration gt LF Adjustment gt CH1 buttons LF Adj value is selected 7 Adjust the LF Adj value with the rotary knob so that the DMM voltage reading is the same as shown in the Table at step 4 AFG3000 Series Arbitrary Function Generators Service Manual 5 5 Adjustment Procedures Flatness adjustment 8 AFG3102 AFG3252 only Connect the AFG3000 Series CH2 Output to the DMM Repeat steps 2 through 7 for the channel 2 output 9 Push the and the Save button to save the adjusted
50. Arbitrary Function Generators Service Manual 2 1 Operating Basics Installation Use the following information to safely install your instrument Operating Requirements Environmental 329 6 mm 12 98 in y i Tektronix AFG 3102 i 271 EEko ee LR Bet E bedi CE eos osos 156 3 Sree 6 16 in p E HAS o be P Figure 2 1 Front size 1 Place the instrument on a cart or bench observing clearance requirements B Sides 50 mm 2 in B Rear 50mm 2 in 2 Before operating ensure that the ambient temperature is between 0 and 50 32 F and 122 F CAUTION To ensure proper cooling keep both sides of the instrument clear of obstructions Power Supply Requirements Source Voltage and Frequency 100 V to 240 V 47 Hz to 63 Hz or 115 V 360 Hz to 440 Hz Power Consumption Less than 120 W AFG3000 Series Arbitrary Function Generators Service Manual Operating Basics Protect Your Instrument from Misuse Check Input and Output Connectors E on Con 5 Output Output Input o EX 6 ma oT eet S TTL Input Do not mistake Output connectors for Input Figure 2 2 Output and Input connectors 1 The instrument has both input and output connectors on the front panel When connecting a cable be sure to distinguish the input connector fr
51. E FORM STRIP 5MM W X 0 5 MM T X 20 MM L W ADHESIVE TAPE INSULATOR BSHG NYLON 0 509 X 0 470 D HOLE X 0 687 OD X 0 035 T INSULATOR BSHG NYLON 0 509 X 0 470 D HOLE X 0 687 OD X 0 035 T INSULATOR BSHG NYLON 0 509 X 0 470 D HOLE X 0 687 OD X 0 035 T INSULATOR BSHG NYLON 0 509 X 0 470 D HOLE X 0 687 OD X 0 035 T 1 CIRCUIT BD ASSY A80 BNC PELTOLA ADAPTER 389378200 WIRED 2 CIRCUIT BD ASSY A80 BNC PELTOLA ADAPTER 389378200 WIRED 1 ASSY SP PELTOLA 5 5 L SAFETY CONTROLLED 1 CORE FERRITE EMI AFG310 1 CA ASSY SP PELTOLA 3 55 L SAFETY CONTROLLED 1 CIRCUIT BD ASSY 70 CPU MAIN 389358400 WIRED ADDING HEATSINK ASSY 1 CIRCUIT BD ASSY A72 CPU MAIN 389358400 WIRED ADDING HEATSINK ASSY a A AFG3000 Series Arbitrary Function Generators Service Manual Figure 9 2 Exploded diagram rear modules AFG3000 Series Arbitrary Function Generators Service Manual Replaceable Parts Replaceable Parts 9 10 AFG3000 Series Arbitrary Function Generators Service Manual
52. EXAN W ADHESIVE BACK SAFETY CONTROLLED AFG3022 MARKER IDENT LABEL REAR PANEL 2 05 X 9 51 0 010 PC FILM LEXAN W ADHESIVE BACK SAFETY CONTROLLED AFG3101 AFG3251 MARKER IDENT LABEL REAR PANEL 2 05 X 9 51 0 010 PC FILM LEXAN W ADHESIVE BACK SAFETY CONTROLLED AFG3102 AFG3252 FOOT REAR BLACK 0 4 X 0 4 X 0 1 HEIGHT FOOT FRONT FLIPMPC ABS SILVER GRAY CA ASSY SP PELTOLA 4 35 L SAFETY CONTROLLED CA ASSY SP PELTOLA 4 35 L SAFETY CONTROLLED CA ASSY SP PELTOLA 6 7 L SAFETY CONTROLLED ASSY SP PELTOLA 6 7 L SAFETY CONTROLLED SHIELD SUBASSEMBLY 51 SHIELD SUBASSEMBLY 51 SHIELD SUBASSEMBLY A61 SHIELD SUBASSEMBLY A61 PUSH BUTTON POWER PC ABS SILVER GRAY GASKET EMI 1 8 L CLIP ON BE CU NICKEL PLATED SCREW PT K35 1 57 PAN HEAD T 15 CORE EM FERRITE EMI AFG310 CA ASSY SP DISCRETE 26 AWG 5 5 L FEMALE 1 X 12 0 059 1 5 MM CTR DUAL ENDED FRONT PANEL 2 CHANNEL 174 4658 00 W COPPER TAPE CIRCUIT BD ASSY A75 KEY BOARD 389 3586 00 WIRED SWITCH KEY PAD ELASTOMERIC FRONT PANEL PUSHBUTTON FOOT FRONT SANTOPRENE BLACK 64 DEROMETER TEXTURED CASE FRONT PC ABS PLASTIC BLEND SILVER GRAY SAFETY CONTROLLED CASE FRONT 202041000 WITH METALIZED SAFETY CONTROLLED MARKER IDENT LABEL FRONT PANEL 1 CH 5 33 X 6 24 0 010 PC FILM LEXAN W ADHESIVE BACK SAFETY CONTROLLED AFG3021 MARKER IDENT LABEL FRONT PANEL 2 CH 5 33 X 6 24 0 010 PC FILM LEXAN W ADHESIVE BACK SAFETY CONTROLLED AF
53. For any model only one frequency point of channel 1 is adjusted 1 Connect the arbitrary function generator to the frequency counter as shown in Figure 5 1 AFG3000 series Frequency counter a un CH1 Output 50 Q BNC coaxial cable Figure 5 1 Reference Clock adjustment 2 Push the Default front panel button and OK menu button to recall the arbitrary function generator default setup 3 Set up the arbitrary function generator using the following steps Select menu Setting Operation Function Sine Sine front Frequency 1 000000 MHz Frequency Period front Amplitude 1 00 Vpp Amplitude High front Channel 1 Output On On front 4 Push the Utility gt more gt more gt Service Menu gt Manual Calibration gt more gt Reference Clock buttons Ref Clock value is selected 5 Adjust the Ref Clock value with the rotary knob so that the frequency counter reading is between 0 999999 MHz and 1 000001 MHz 6 Push the Save menu button to save the adjusted value 5 4 AFG3000 Series Arbitrary Function Generators Service Manual Adjustment Procedures LF Adjustment This procedure adjusts the LF amplitude accuracy of the arbitrary function generator This adjustment is not necessary in the AFG3021 and AFG3022 1 Connect the arbitrary function generator to the DMM as shown in Figure 5 2
54. G 0 610 OD X 0 490 ID X 0 007 THK WAVE SHAPE STAINLESS STEEL WASHER SPRING 0 610 OD X 0 490 ID X 0 007 THK WAVE SHAPE STAINLESS STEEL WASHER SPRING 0 610 OD X 0 490 ID X 0 007 THK WAVE SHAPE STAINLESS STEEL AFG3000 Series Arbitrary Function Generators Service Manual 9 7 Replaceable Parts Replaceable Parts List Fig amp index number 2 17 18 19 20 21 22 23 24 25 26 27 Tektronix part number 210 1544 00 671 6071 00 348 1840 00 348 1841 00 348 1842 00 342 1135 00 342 1135 00 342 1135 00 342 1135 00 671 6069 XX 671 6069 XX 174 5155 00 276 0324 00 174 5156 00 671 5968 XX 671 5815 XX Refer to Figure 9 2 on page 9 9 Serial Serial 4 no dis Model effective cont d Qty Name amp description AFG3102 3252 AFG3021 3022 3101 3102 3251 3252 AFG3251 3252 AFG3251 3252 AFG3251 3252 AFG3021 AFG3022 AFG3101 3251 AFG3102 3252 AFG3022 3101 3251 AFG3102 3252 AFG3101 3102 3251 3252 AFG3101 3102 3251 3252 AFG3022 3102 3252 AFG3021 3022 AFG3101 3102 3251 3252 5 WASHER SPRING 0 610 OD X 0 490 ID X 0 007 THK WAVE SHAPE STAINLESS STEEL 1 CIRCUIT BD 55 82 REAR INSULATOR 389378400 WIRED 1 GASKET ELEC CONDUCTIVE URETHANE FORM STRIP 5MM W 0 5 MM T X 95 L W ADHESIVE TAPE 1 GASKET ELEC CONDUCTIVE URETHANE FORM STRIP 5MM W X 0 5 MM T X 10 MM L W ADHESIVE TAPE GASKET ELEC CONDUCTIVE URETHAN
55. G3022 AFG3102 AFG3252 KNOB CAP 1 380 DIA PC ABS SILVER GRAY AFG3000 Series Arbitrary Function Generators Service Manual Replaceable Parts List Fig amp index Tektronix number number 1 34 335 1170 00 335 1169 00 335 1280 00 335 1168 00 335 1281 00 335 1167 00 35 174 5150 00 174 4673 00 Model AFG3021 AFG3022 AFG3101 AFG3102 AFG3251 AFG3252 AFG3021 AFG3022 3101 3102 3251 3252 Serial Serial dis effective cont d Refer to Figure 9 1 on page 9 6 Qty Name amp description 1 MARKER IDENT LABEL MKD AFG3021 0 W ADHESIVE BACK SAFETY CONTROLLE MARKER IDENT LABEL MKD AFG3022 0 W ADHESIVE BACK SAFETY CONTROLLE MARKER IDENT LABEL MKD AFG3101 0 W ADHESIVE BACK SAFETY CONTROLLE MARKER IDENT LABEL MKD AFG3102 0 W ADHESIVE BACK SAFETY CONTROLLE MARKER IDENT LABEL MKD AFG3251 0 W ADHESIVE BACK SAFETY CONTROLLE MARKER IDENT LABEL MKD AFG3252 0 W ADHESIVE BACK SAFETY CONTROLLE CA ASSY SP DATA MONO 7 0 L ASSY SP DATA COLOR 7 0L AFG3000 Series Arbitrary Function Generators Service Manual Replaceable Parts 010 PC FILM LEXAN D 010 PC FILM LEXAN D 010 PC FILM LEXAN D 010 PC FILM LEXAN D 010 PC FILM LEXAN D 010 PC FILM LEXAN D 9 5 Replaceable Parts See Figure 9 2 N Figure 9 1 Exploded diagram AFG3000 Series Arbitrary Function Genera
56. REW MACHINE 6 32 X 0 250 PNH STL ZNPL 1 15 TORX DR SCREW MACHINE 6 32 X 0 250 PNH STL ZNPL 1 15 TORX DR SCREW MACHINE 6 32 X 0 250 PNH STL ZNPL T 15 TORX DR SCREW MACHINE 6 32 X 0 250 PNH STL ZNPL T 15 TORX DR SCREW MACHINE 6 32 X 0 250 PNH STL ZNPL T 15 TORX DR LEAD ELECTRICAL 18 AWG 4 0 1 5 4 SAFETY CONTROLLED WASHER LOCK 8 INTL 0 02 THK STL CD PL SUBPANEL REAR 0 039 EG STEEL CA ASSY SBELEC 2 28 AWG 10 CM L W HOLDER 173977 3 amp AMP 173977 2 CA ASSY SPELEC 5 28AWG W CONN 10CM L W87 IRREGULAR CROSS WIRING INVERTER BOARD FAN DC TUBEAXIAL 12V 2 08W 2950RPM 39 6CFM 32 0DBA 80MM X 80MM X 25 5MM W O LEAD SAFETY CONTROLLED POWER SUPPLY AC DC 150 W MAX IN 87 264 VAC 47 63 HZ 100 127 VAC 360 440 HZ IN 4 3V 0 2 3A 5V 3 2A 15V 2A 15V 2A OUT SAFETY CONTROLLED INSULATOR PROTECTION COVER POWER SUPPLY 0 5 MM THK CLEAR POLYCARBONATE UL94 V1 SAFETY CONTROLLED FILTER RFI 3A 250VAC 0 5 MA 0 150HM SAFETY CONTROLLED CA ASSY SBELEC 2 18 AWG 7 CM L W HOLDER 09050 3031 amp AMP FASTON JACKSCREW 6 32 X 0 320 EXT THD M3 5 X 0 6 6 INT THD X 0 215L GPIB BLACK OXIDE BULK PACK WASHER LOCK 10 SPLIT 0 047 THK SI BRZ NP GASKET GROUNDING 0 320 L X 0 365 W 2 CONTACTS X 0 110 DEEBELECTROLESS NICKEL PLATE NUT PLAIN HEX 0 5 28 X 0 625 HEX BRS CD PL NUT PLAIN HEX 0 5 28 X 0 625 HEX BRS CD PL NUT PLAIN HEX 0 5 28 X 0 625 HEX BRS CD PL NUT PLAIN HEX 0 5 28 X 0 625 HEX BRS CD PL WASHER SPRIN
57. SIS 5 2 Performance Conditions 5 3 Enable the service 5 3 DAVE eod buzo gaa eraan ata tte reet d Ue ATO E 5 3 Clear CAISDatadgnenu 22 2 2 aee ede EO Tm CER UP Y 5 3 Reference Clock ci ed AE E ap edis Aes 5 4 AAG 5 5 Flatness adjustment 5 6 Spurious adjustments ateetan ziranez gr en Gre eak A 5 8 Trigger delay adjustment 5 10 Preparation eso pA Y PEE Ea he OR ec eo ee eau 6 1 PreventinsiESD v sies ve E FR ERO EI GU whens Mee RE 6 1 Inspection and Cleaning 1 6 2 Removal and Installation Procedures 6 7 Adjustment after repair 6 7 TastobModules shes es A AA LI 6 7 Summary of Procedures 1 6 8 Tools Required ir a DEUS 6 9 Flip E etiz en cb Duta tartaro d 6 9 Front Panel Knob 6 10 Rear Cases ee rw o es oO fen Y CO gr kaieran gu drea 6 10 TOP Covers A E dE SES rrearen 6 11 Pront Cases o RAR MR ER M RE RE ee 6 12 A75 Front panel board erati 20 Ete girten Pure erien 6 12 D
58. Service Manual Tektronix 7 AFG3000 Series Arbitrary Function Generators 071 1640 00 This document supports firmware version 1 0 0 and above www tektronix com Copyright O Tektronix Inc All rights reserved Licensed software products are owned by Tektronix 1ts 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 c 1 i1 of the Rights in Technical Data and Computer Software clause at DFARS 252 227 7013 or subparagraphs 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 Box 500 Beaverton OR 97077 USA For product information sales service and technical support In North America call 1 800 833 9200 Worldwide visit www tektronix com to find contacts in your area WARRANTY 16 Tektronix warrants that the product will be free from defects in materials workmanship for a period of three 3 years from the date of original purchase from an authoriz
59. Troubleshooting Diagnostics Power on diagnostic test When you power on the AFG3000 Series it automatically executes a diagnostic test for all the diagnostics items before the Startup screen appears When detecting an error this test displays an error message If you see such a message press the OK button to proceed with the next step The AFG3000 Series software starts When the AFG3000 Series contains an unsolved error the test cannot be conducted normally Diagnostic test from This procedure uses internal routines to verify that the instrument is operating correctly Equipment required None Prerequisites Power on the instrument and allow a 20 minute warm up before doing this procedure Power The instrument must be operating at an ambient temperature between 0 and 50 C 1 Select the Diagnostics item in the Utility menu Utility front panel gt more bezel gt Diagnostics Calibration gt Execute Diagnostics 2 Wait until the test is completed 3 Verify passing of the diagnostics If the diagnostics completes without finding any problems the message PASSED is displayed When an error is detected during diagnostic execution the instrument shows an error code Error codes are described in Error Codes section on page 6 28 4 Press any front panel button to exit from the diagnostics 6 26 AFG3000 Series Arbitrary Function Generators Service Manual Troubleshooting Ca
60. a ee sn BEE an nee 3 3 Front Panel x s A a e eee ea esa vee UR 3 3 Power Supply 2428 28822 00 er 3 3 TOD dida 3 3 e ZN Sts a E a ste ites e 3 3 BNC Insulator Board A81 82 3 3 Generator section ed wa att da arte 3 4 Generator with Amp Board 11 12 3 4 AFG3000 Series Arbitrary Function Generators Service Manual i Table of Contents Performance Verification Adjustment Procedures Maintenance Generator with Amp Board 31 32 41 42 3 4 Output Amp Board 51 61 3 5 Testi dd a 4 1 Performance Test a A ER 4 3 Test Record met desto ENTER NN e RR e NDS I NO y o e 4 5 Frequency Period Iest i2 ule usant RR qr Re 4 19 Amplitude Test ekle Mb eR 4 20 IC Offset Test oct cts tte aat Eo der raka GE 4 22 AC Teste sen sr a tee aaa WOES 4 24 Harmonics Distortion Test 4 26 Total Harmonic Distortion 4 28 Spurious Test areak erak gi ha we eae ase bey 4 30 BESO UNEA e AAE 4 33 RULPOSC rn ne a aN aA eden E Dichte indes 5 1 Adjustment Interval ANE 5 1 Adjustment After BALA 5 1 Equipment Required o eive nes na
61. age to the surface of the arbitrary function generator do not use any abrasive or chemical cleaning agents AFG3000 Series Arbitrary Function Generators Service Manual 6 3 Maintenance Flat Panel Display Cleaning The display is a soft plastic display and must be treated with care during cleaning CAUTION Imported cleaning agents or methods can damage the flat panel display Avoid using abrasive cleaners or commercial cleaners to clean the display surface Avoid spraying liquids on the display surface Avoid scrubbing the display with excessive force 1 Clean the flat panel display surface by gently rubbing the display with a clean room wipe such as Wypall Medium Duty Wipes 05701 available from Kimberly Clark Corporation 2 If the display is very dirty moisten the wipe with distilled water or a 75 isopropyl alcohol solution and gently rub the display surface Avoid using excess force or you may damage the plastic display surface CAUTION To prevent getting moisture inside the arbitrary function generator during external cleaning use only enough liquid to dampen the cloth or applicator Inspection Interior Inspect and clean the interior if it appears that the arbitrary function generator may have been damaged or exposed to an unusually dirty environment To access the inside of the arbitrary function generator for inspection and cleaning refer to the Removal and Installation Procedures in this section
62. ance Verification Rise Fall time Test This test verifies the pulse rise time of the arbitrary function generator 1 Connect the arbitrary function generator to the oscilloscope as shown in Figure 4 10 Oscilloscope AFG3000 series 5 12999 UJ CH1 Input CH1 Output 50 Q BNC coaxial cable Figure 4 10 Rise Fall time tests 2 Setup the arbitrary function generator using the following steps Select menu Setting Operation Function Square Sine front Frequency 10 00 MHz Frequency Period front Amplitude Units Vpp TopMenu Amplitude Level Menu more Units gt Vpp Amplitude 0 1 Vpp Amplitude High front Offset 0 0 V TopMenu Offset Low front Channel 1 Output On On front 3 Setup the Oscilloscope so the square waveform of 5 division amplitude is displayed 4 Verify thatthe rise fall time of the square waveform on the oscilloscope at each amplitude is equal to or less than the limit specified in the following tables Use 10 90 reference level for rise fall time measurement AFG3000 Series Arbitrary Function Generators Service Manual 4 33 Performance Verification AFG302x Oscilloscope Measurement Function Frequency Offset Amplitude Vertical Horizontal Limit Square 10 00 MHz 0 0 V 0 1 20 mV div 5 ns div lt 18 ns Square 10 00 MHz 0 0 V 1 0 Vo
63. at reading of the Frequency Counter is between 0 999999 MHz and 1 000001 MHz 5 Set up the arbitrary function generator using the following steps Select menu Function Pulse Pulse front 6 Check that reading of the frequency counter is between 0 999999 and 1 000001 MHz AFG3000 Series Arbitrary Function Generators Service Manual 4 19 Performance Verification Amplitude Test This test verifies the amplitude accuracy of the arbitrary function generator All output amplitudes are derived from a combination of attenuators and 3 dB variable gain Some amplitude points are checked This test uses a 50 terminator It is necessary to know the accuracy of a 50 Q terminator in advance of this amplitude test This accuracy is used as a calibration factor 1 Connect the 50 terminator to the DMM as shown in Figure 4 2 and measure the register value DMM BNC Dual banana adapter 50 Q terminator Figure 4 2 50 O terminator accuracy 2 Calculate the 50 Q calibration factor CF from the reading value and record as follows CF Calibration Factor 2 1 50 Measurement Measurement reading of the DMM CF Q Example 50 50 2 1 0050 2 1 50 50 50 49 62 Q 0 9962 2 1 50 49 62 3 Connect the arbitrary function generator to the DMM as shown in Figure 4 3 Be sure to connect the 50 2 terminator to the arbitrary function generator Output connector
64. ation AFG3000 Series Arbitrary Function Generators Service Manual vii General Safety Summary Symbols and Terms 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 Terms on the Product These terms may appear on the product DANGER indicates an injury hazard immediately accessible as you read the marking WARNING indicates an injury hazard not immediately accessible as you read the marking CAUTION indicates a hazard to property including the product Symbols on the Product The following symbols may appear on the product A A a WARNING Protective Ground CAUTION Double High Voltage Earth Terminal Refer to Manual Insulated viii AFG3000 Series Arbitrary Function Generators Service Manual Service Safety Summary Only qualified personnel should perform service procedures Read this Service Safety Summary and the General Safety Summary before performing any service procedures Do Not Service Alone Do not perform internal service or adjustments of this product unless another person capable of rendering first aid and resuscitation is present Disconnect Power To avoid electric shock disconnect the mains power by means of the power cord or if provided the power switch
65. bsection After isolating a faulty module replace it with a fully tested module obtained from the factory The Replaceable Mechanical Parts section contains part number and ordering information for all replaceable modules AFG3000 Series Arbitrary Function Generators Service Manual xiii Introduction Tektronix Service Offerings xiv Warranty Repair Service Self Service Tektronix provides service to cover repair under warranty as well as other services that may provide a cost effective answer to your service needs Whether providing warranty repair service or any of the other services listed below Tektronix service technicians are well trained to service the arbitrary function generator They have access to the latest information on improvements to the AFG3000 Series as well as new options Tektronix warrants this product for three years from date of purchase The warranty appears at the front of this manual Tektronix technicians provide warranty service at most Tektronix service locations Tektronix supports repair to the replaceable part and module level For More Information Contact your local Tektronix service center or sales engineer for more information on any of the repair or adjustment services just described AFG3000 Series Arbitrary Function Generators Service Manual Specifications Specifications These specifications apply to all AFG3000 Series Arbitrary Function Generators All specifications are guaranteed un
66. c dBc Nth reference lt 37 dBc Sine 100 MHz 100 MHz 200 MHz 300 MHz 400 MHz 500 MHz CH1 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference 30 dBc CH2 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference 30 dBc Sine 240 MHz 240 MHz 480 MHz 720 MHz 960 MHz 1 20 GHz CH1 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference 30 dBc CH2 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference 30 dBc AFG3000 Series Arbitrary Function Generators Service Manual AFG3000 Series Performance Test Record Total Harmonic Distortion THD Performance Verification AFG3xxxx Spectrum Analyzer reading Fundamental 2nd 3rd 4th 5th 6th 7th reference Sine 20 0 kHz 20 kHz 40 kHz 60 kHz 80 kHz 100 kHz 120 kHz 140 kHz CH1 reading dBm Mz Mez Me As Ag A7 reading reference A A4 dBc B 0 Bo B B Cp 10 B20 1 Co Ge Cs C Limit lt 0 2 THD Tre CH2 reading dBm 1 2 A4 5 7 reading reference An A1 dBc Bi 0 B2 B3 B4 B5 B6 B7 Cp 10 Pan 1 2 C3 4 5 C7 Limit lt 0 2 YG THD AFG3000 Series Arbitrary Function Generators Servi
67. ce Manual 4 13 Performance Verification AFG3000 Series Performance Test Record Spurious AFG302X Spectrum Analyzer Measurement Frequency Center Span RBW Spurious Frequency Spurious Max Limit Frequency CH1 Spurious Sine 100 kHz 10 MHz 20 MHz 20 kHz MHz dBc lt 60 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 1 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 10 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 25 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc CH2 Spurious Sine 100 kHz 10 MHz 20 MHz 20 kHz MHz dBc lt 60 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 1 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 10 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 25 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc 4 14 AFG3000 Series Arbitrary Function Generators Service Manual AFG3000 Series Performance Test Record Performance Verification Spurious AFG310X Spectrum Analyzer Measurement Frequency Center Span RBW Spurious Frequency Spurious Max Limit Frequency CH1 Spurious Sine 100 kHz 10 MHz 20 MHz 20 kHz MHz dBc lt 60 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 1 00 MH
68. corresponding menu on the right side of the screen The menu shows the options that are available when you push the unlabeled bezel buttons directly to the right of the screen Some documentation may also refer to the bezel buttons as option buttons side menu buttons or soft keys Main Display Area and View Tab Pushing the front panel View button toggles through the view format of the main display area The view tabs correspond with the current view format The arbitrary function generator can display three different screen formats Output Status If the output is set to disable Output Off message is displayed in this area When you push the front panel channel output button to enable the output the message will disappear Message Display Area A message that monitors hardware status such as clock or trigger is displayed in this area Level Meter Amplitude level is displayed Refer to page 2 5 for setting the high limit and low limit The following figure describes the level meter Shows maximum amplitude level of your instrument Shows the range of high limit and low limit set by the user Shows the amplitude level that is currently selected Use the front panel power button to power off the instrument AFG3000 Series Arbitrary Function Generators Service Manual Theory of Operation Theory of Operation Overview This section describes the electrical operation of the AFG3000 Series Arbitrary Function Generators to the modu
69. cs Characteristics Warm up Time typical Description 20 minutes minimum Specifications Power On Self Calibration typical 16s Setup Time typical Waveform lt 100 ms Amplitude lt 50 ms Frequency lt 25 ms Data Download typical 4000 points waveform data GPIB 42 ms USB 20 ms LAN 84 ms Acoustic Noise typical lt 50 dBA Weight approximate 4 5 kg Dimensions See Figure 1 1 and Figure 1 2 on page 1 11 Table 1 14 Power Characteristics Source Voltage and Frequency Description 100 V to 240 V 47 Hz to 63 Hz 115 V 360 Hz to 440 Hz Power Consumption Less than 120 W AFG3000 Series Arbitrary Function Generators Service Manual 1 9 Specifications Table 1 15 Environmental Safety Characteristics Description Temperature Range Operating 0 C to 50 C Non operating 30 C to 70 C Humidity Operating At or below 40 C lt 80 gt 40 C to 50 C lt 60 Altitude Operating Up to 3 000 meters 10 000 feet EMC Compliance European Union EN 61326 Class A IEC 61000 3 2 and EN 61000 3 3 IEC 61000 4 2 4 3 4 4 4 5 4 6 4 11 Australia AS NZS 2064 Safety UL 61010 1 2004 CAN CSA C22 2 No 61010 1 2004 IEC 61010 1 2001 1 Emissions that exceed the levels required by this standard may occur when this equipment is connected to a test object To ensure compliance to the standards listed above attach only
70. d Low Limit is set to 5 000 V NOTE You can select the instrument settings Default settings or Last powered off settings which are restored when you power on the instrument Use the Utility menu to change the settings 1 Tektronix AFG 3102 Ee een Lm m m CD oO 0 lt gt Ss SE Duo E ses De 1 a fot ze OA 1 Use the front panel power button to power off the instrument AFG3000 Series Arbitrary Function Generators Service Manual Operating Basics Self Test and Self Calibration The arbitrary function generator performs a limited set of hardware tests at power on You can also perform the manual diagnostics and or self calibration using the Utility menu Diagnostics Calibration Backup Restore Channel Copy 1 Push the front panel Utility button 2 Push the more bezel button 3 Push the Diagnostics Calibration bezel button Execute Diagnostics Execute Calibration 4 The Diagnostics Calibration execution menu is displayed To execute self calibration push the Execute Calibration bezel button To execute the instrument diagnostics push the Execute Diagnostics bezel button CAUTION Do not power off the instrument while executing self calibration The calibration data may be damaged lost NOTE Before executing self calibration ensure that the ambient temperature is betwe
71. dBc lt 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc 10 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc 25 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc 50 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 44 dBc 300 MHz 600 MHz 20 kHz MHz dBc 100 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 38 dBc 300 MHz 600 MHz 20 kHz MHz dBc AFG3000 Series Arbitrary Function Generators Service Manual 4 31 Performance Verification AFG325x Spectrum Analyzer Measurement Frequency Center Span RBW Spurious Spurious Limit Frequency Frequency Max 100 00 kHz 10 MHz 20 MHz 20 kHz MHz dBc 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc 1 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 47 dBc 300 MHz 600 MHz 20 kHz MHz dBc 10 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 47 dBc 300 MHz 600 MHz 20 kHz MHz dBc 25 00 MHz 10MHz 20MHz 20 kHz MHz dBc 300 MHz 600 MHz 20 kHz MHz dBc 50 00 MHz 10MHz 20MHz 20 kHz MHz dBc 44 dBc 300 MHz 600 MHz 20kHz MHz dBc 100 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 35 dBc 300 MHz 600 MHz 20 kHz MHz dBc 200 00 MHz 10MHz 20MHz 20kHz MHz dBc 29 dBc 300 MHz 600 MHz 20 kHz MHz dBc 240 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 28 dBc 300 MHz 600 MHz 20 kHz MHz dBc 4 32 AFG3000 Series Arbitrary Function Generators Service Manual Perform
72. dance 500 1 AFG3021 AFG3022 and AFG3101 AFG3102 10 Vpk ac dc into open circuit load AFG3251 AFG3252 5 V yy ac dc into open circuit load 2 AFG3021 AFG3022 and AFG3101 AFG3102 Add 0 5 mV per C for operation outside the range of 20 C to 30 C AFG3251 AFG3252 Add 2 0 mV per C for operation outside the range of 20 C to 30 C Table 1 8 Internal Noise Add Characteristics Description Range 0 to 50 of amplitude setting of signal waveform Resolution 1 Table 1 9 Output Characteristics Characteristics Description PV reference page Sine Wave AFG3021 AFG3022 AFG3101 AFG3102 AFG3251 AFG3252 v Flatness 1 mHz lt frq lt 5 MHz 1 mHz lt frq lt 5 MHz 1 mHz lt frq lt 5 MHz page 4 24 at 1 0 Vp p amplitude 4 dBm relative to 100 kHz 0 15 dB 5 MHZ lt frq lt 20 MHz 0 3 dB 20 MHz lt frq lt 25 MHz 0 5 dB 0 15 dB 5 MHz lt frq lt 25 MHz 0 3 dB 25 MHz lt 100 MHz 0 5 dB 0 15 dB 5 MHz lt frq lt 25 MHz 0 3 dB 25 MHz lt frq lt 100 MHz 0 5 dB 100 MHz lt frq lt 200 MHz 1 0dB 200 MHz lt frq x 240 MHz 2 0 dB AFG3000 Series Arbitrary Function Generators Service Manual Table 1 9 Output Characteristics cont Specifications Characteristics Description PVreference page W Harmonic Distortion 1 mHz lt frq lt 20 kHz
73. e Self Tests which begin on page 4 1 Advantage These procedures require minimal time to perform and test the internal hardware of the AFG3000 Series Arbitrary Function Generators To further check functionality and proper calibration first complete the Self Tests then complete the Performance Tests beginning on page 4 3 Advantages These procedures add direct checking of warranted specifications These procedures require suitable test equipment and more time to execute Refer to Table 4 2 Test equipment on page 4 4 There are two types of tests in this section that provide a quick way to confirm basic functionality and proper adjustment Diagnostics Calibration you must perform this calibration before the performance tests These procedures use internal diagnostics to verify that the instrument passes the internal circuit tests and calibration routines to check and adjust the instrument internal calibration constants This procedure uses internal routines to verify that the instrument is operating correctly Equipment required None Prerequisites Power on the instrument and allow a 20 minute warm up before doing this procedure The instrument must be operating at an ambient temperature between 0 C and 50 Do the following steps to run the internal routines that confirm basic functionality and proper adjustment AFG3000 Series Arbitrary Function Generators Service Manual 4 1 Perfo
74. ed Tektronix distributor If the 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 Batteries are excluded from this warranty 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 shipping charges prepaid and with a copy of customer proof of purchase 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 service under this warranty a to repair damage resulting from attempts by personnel oth
75. ed through the inverter A monochrome display is used in the AFG3021 Fan A 90 mm by 90 mm size DC 12 V type fan It is driven by fan controller on the CPU board BNC Insulator Board These boards insulate the I O signal from the chassis The A81 board is used for A81 A82 the rear panel connectors and the A82 board is used for the front panel connectors AFG3000 Series Arbitrary Function Generators Service Manual 3 3 Theory of Operation Generator section Generator with Amp Board 11 12 Generator with Amp Board A31 A32 M1 A42 Isolator Transmit the serial control signal from the CPU board to the following circuits with electrical insulation Clock Circuit Generates a 1 GHz high speed clock necessary for the signal generation from a 10 MHz reference clock by PLL This circuit has a function of selecting the reference signal source as well GoC ASIC GoC Generator on Chip ASIC is a CMOS waveform synthesis IC which includes 2 GS s DA Direct Digital Synthesis waveform SRAM 128 K x8 MUX Modulation Burst and Sweep So GoC manages most of the generator section Trigger Circuit Receives an External Trigger input signal executes the level conversion then supplies the level converted trigger signal to the GoC ASIC Pre Amplifier Circuit Converts the differential output signal of the GoC to single ended output then supplies the single ended output to the Output Amplifier through the Attenuator Output Amplifi
76. en 20 C and 30 C 68 F to 86 F Allow a 20 minute warm up period prior to executing self calibration AFG3000 Series Arbitrary Function Generators Service Manual 2 7 Operating Basics Getting Acquainted with Your Instrument Front Panel Overview front panel is divided into easy to use functional areas This section provides you with a quick overview of the front panel controls and the screen interface The following figure shows the front panel of the dual channel model Top Menu button Bezel menu buttons Function buttons Tektronix AFG 3102 2 Continuous Modulation Frequency Period Amplitude High Shortcut buttons Numeric keypad fault Trigger Input connector View button Trigger Output connector USB connector Menu buttons Power On Off switch CH1 and CH2 Output connectors Figure 2 5 Front panel controls 2 8 AFG3000 Series Arbitrary Function Generators Service Manual Operating Basics Rear Panel The following illustration shows the rear panel connectors for the instrument H Security slot screw Figure 2 6 Rear panel EXT REF INPUT This input is used when synchronizing multiple arbitrary function generators or an arbitrary function generator and another device EXT REF OUTPUT When you want t
77. equency Accuracy 0 01ppm Phase measurement 5 Oscilloscope 1 GHz Bandwidth Tektronix TDS5104B Checks output signals Used in 50 input termination multiple procedures 6 Spectrum Analyzer 20 kHz to 1 25 GHz Tektronix RSA3303A Checks output signals Harmonics Spurious 7 BNC Coaxial Cable 50 male to male BNC connector Tektronix part number Signal interconnection 8 required 91 012 0482 00 8 BNC terminator 50 Q 1 Q 2 W DC to 1 GHz BNC Tektronix part number Signal termination 011 0049 01 9 Attenuator 2 required 50 2 x10 BNC Tektronix part number Signal attenuation 011 0059 02 10 Adapter Dual Banana BNC female to dual banana Tektronix part number Signal interconnection to a Plug 103 0090 00 DMM 11 Adapter BNC fe N ma BNC female to N male Tektronix part number Signal interconnection to a 103 0045 00 Spectrum Analyzer AFG3000 Series Arbitrary Function Generators Service Manual Adjustment Procedures Performance Conditions The adjustments in this section are an extensive valid confirmation of performance and functionality when the following requirements are met The cabinet covers must on the AFG3000 Series The instrument must have been calibrated adjusted at an ambient temperature between 20 C and 30 C The instrument must have had a warm up period of at least 20 minutes Enable the service mode Save menu Clear CAL Data
78. equency 2 mHz to 50 00 kHz Peak Deviation DC to 12 5 MHz DC to 50 MHz DC to 120 MHz PM Phase Modulation Carrier Waveforms Standard waveforms except Pulse DC and Noise and Arb Modulation Source Internal or External Internal Modulating Sine Square Ramp Noise and Arb Waveforms Internal Modulating 2 mHz to 50 00 kHz Frequency Phase Deviation Range 0 0 to 180 0 degrees AFG3000 Series Arbitrary Function Generators Service Manual Table 1 10 Modulation cont Specifications Characteristics Description FSK Frequency Shift Keying Carrier Waveforms Standard waveforms except Pulse DC and Noise and Arb Modulation Source Internal or External Internal Key Rate 2 mHz to 1 000 MHz Numbers of Key 2 PWM Pulse Width Modulation Carrier Waveforms Pulse Modulation Source Internal or External Internal Modulating Waveforms Sine Square Ramp Noise and Arb Internal Modulating Frequency 2 mHz to 50 00 kHz Deviation Range 0 0 to 50 0 of pulse period Sweep AFG3021 AFG3022 AFG3101 AFG3102 AFG3251 AFG3252 Type Linear or Logarithmic Start Stop Frequency 1 Hz to 25 MHz 1 Hz to 100 MHz 1 Hz to 240 MHz Sweep Hold Return Time Range 10 ms to 100s Resolution 1 ms or 4 digits Pulse DC and Noise waveforms are not available Total sweep time Sweep time Hold time Return time lt 100s
79. er The output of the pre amplifier is amplified and output LPF is used when a sine wave is output Trig Out Circuit Sync Out signal from GoC ASIC is level converted to Trigger Out ADC Modulation by an external source is performed by digitally sampling the external input from the Ext Modulation Input connector Local Regulator Supplies the necessary 1 8 V 43 3 V 15 V and 15 V power On Off Relay On Off of the output signal Calibration Circuit DC Calibration of the output signal is done by a 16 bit AD Converter The A31 A32 A41 A42 boards are the same as the A11 A12 boards except they have a different Output Amplifier board AFG3000 Series Arbitrary Function Generators Service Manual Theory of Operation Output Amp Board Output Amplifier Amplifying the output of the pre amplifier with the DC offset 51 61 Output Filter LPF is used when a sine wave is output AFG3000 Series Arbitrary Function Generators Service Manual 3 5 Theory of Operation 3 6 AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification Performance Verification Self Tests Diagnostics Two types of Performance Verification procedures can be performed on this product Self Tests and Performance Tests You may not need to perform all of these procedures depending on what you want to accomplish To quickly confirm that the AFG3000 Series Arbitrary Function Generators are operating properly complete th
80. er 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 vii Service Safety ix Preface a ZO PU xi Finding Other Information xii Manual Conventions 2 Int
81. eries Arbitrary Function Generators Service Manual Removal and Installation Procedures Top cover You will need a torque limiting Torx T 15 screwdriver and a flat blade screwdriver for this procedure Removal To remove the top cover refer to Figure 6 4 and follow these steps 1 Remove the nine screws attaching the top cover to the main chassis and the rear sub panel Four screws are on the upper part of the top cover Five screws are on the rear panel side 2 Using a flat blade screwdriver pull the top cover backwards Figure 6 4 Top cover removal Installation To install reverse this procedure AFG3000 Series Arbitrary Function Generators Service Manual 6 11 Removal and Installation Procedures Front case You will need a torque limiting Torx 15 screwdriver Removal To remove the front case refer to Figure 6 5 and follow these steps 1 Remove the front panel knob by firmly grasping the knob and pulling it away from the front panel 2 Remove the four tapping screws attaching the front case to the main chassis 3 The front case and the rubber switch can be removed together Figure 6 5 Front case removal Installation To install reverse this procedure Remember to attach the rubber front feet to the front case A75 Front panel board You will need a torque limiting Torx T 15 screwdriver Removal To remove the A75 front panel board refer to Figure 6 6 and follow these steps 1 Remove
82. f the arbitrary function generator For optimum performance follow these recommendations Protect the arbitrary function generator from adverse weather conditions The arbitrary function generator is not waterproof Do not store or leave the arbitrary function generator whether the liquid crystal display LCD will be exposed to direct sunlight or high humidity for long periods of time The front and rear cases help keep dust out of the arbitrary function generator and must be in place during normal operation To avoid damage to the arbitrary function generator do not expose them to any sprays liquids or solvents AFG3000 Series Arbitrary Function Generators Service Manual Inspection and Cleaning procedures A Maintenance The collection of dirt on internal components can cause them to overheat and fail Dirt also provides an electrical conduction path that could cause an arbitrary function generator failure especially under high humidity conditions Inspect the arbitrary function generator as often as operating conditions require CAUTION Avoid the use of chemical cleaning agents which might damage the plastics used in this AFG3000 Series arbitrary function generator Use only deionized water when cleaning the front panel buttons Use an ethyl alcohol solution as a cleaner and rinse with deionized water Inspection Exterior Inspect the outside of the arbitrary function generator for damage wear and missing par
83. frequency of the spectrum analyzer to 10 MHz Other settings are shown in the following tables 4 Measure the maximum spurious level other than harmonic distortion of 1 Vj sine wave in each frequency 5 Set the center frequency of the spectrum analyzer to 300 MHz Other settings are shown in the following tables 6 Measure the maximum spurious level other than harmonic distortion of 1 Vj sine wave in each frequency 7 Verify that the spurious signal at each frequency is equal to or less than the limit specified in the following tables 4 30 AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification 8 AFG3xx2 only Repeat steps 2 through 7 for the channel 2 output AFG302x Spectrum Analyzer Measurement Frequency Center Span RBW Spurious Spurious Limit Frequency Frequency Max 100 00 kHz 10 MHz 20 MHz 20 kHz MHz dBc lt 60 dBc 300 MHz 600 MHz 20 kHz MHz dBc 1 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc 10 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc 25 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc AFG310x Spectrum Analyzer Measurement Frequency Center Span RBW Spurious Spurious Limit Frequency Frequency Max 100 00 kHz 10 MHz 20 MHz 20 kHz MHz dBc lt 60 dBc 300 MHz 600 MHz 20 kHz MHz dBc 1 00 MHz 10 MHz 20 MHz 20 kHz MHz
84. hing the output module to the rear sub panel 3 Gently pull out the output board toward the rear according to the guide Figure 6 8 Output board removal Installation To install reverse this procedure Separation of the rear module and main chassis To remove and replace the internal modules Generator board CPU board Power supply fan or backlight inverter board you must first separate the rear module and the main chassis You will need a torque limiting Torx 15 screwdriver and flat blade screwdriver for this procedure Removal To separate the rear module and main chassis refer to Figure 6 9 and Figure 6 10 and follow these steps 1 Disconnect the following cables 6 14 The front panel cable at J300 The display inverter cable from the LCD Display The display data cable at J400 from the LCD Display The add in cable at 7370 from the ADD Input connector AFG3000 Series Arbitrary Function Generators Service Manual Removal and Installation Procedures 2 Remove the three screws attaching the CPU board to the main chassis 3 Remove the two screws near the air outlet attaching the rear module and main chassis Aa Figure 6 9 Separation of the rear module and main chassis 4 Use the flat blade screwdriver to loosen the rear module and main chassis 5 Pull out the rear module toward the rear Figure 6 10 Pull out the rear module Installation To install reverse this procedure
85. iagnostics NOTE Do not turn off the power while executing calibration Ifthe power is turned off during calibration data stored in internal nonvolatile memory may be lost AFG3000 Series Arbitrary Function Generators Service Manual Performance Tests Table 4 1 Performance test items Performance Verification The Performance Tests include functional tests such as the interface functional test in this manual The Functional Tests verify the functions they verify that the AFG3000 Series Arbitrary Function Generators features operate They do not verify that they operate within limits The Performance Tests verify that the AFG3000 Series Arbitrary Function Generators performs as warranted The Performance Tests check all the characteristics that are designated as checked in Specifications The characteristics that are checked appear with a Y in Specifications Titles Test items Reference page Frequency Period Test Internal clock output frequency accuracy page 4 19 Amplitude Test Amplitude accuracy page 4 20 DC Offset Test Amplitude accuracy page 4 22 AC Flatness Test AC Flatness page 4 24 Harmonic Distortion Test Harmonic Distortion page 4 26 THD Total Harmonic Distortion Test Total Harmonic Distortion page 4 28 Spurious Test Spurious page 4 30 Rise Fall Time Test Rise Fall Time page 4 33 Performance Conditions The tests in this section comprise an extensive valid confirmation of
86. ies EN Figure 5 4 Spurious adjustment Spectrum analyzer WCA280A BNC Fe N Ma adapter 50 Q BNC coaxial cable 2 Setup the arbitrary function generator using the following steps Select menu Setting Operation Function Sine Sine front Amplitude Units Vpp TopMenu gt Amplitude Level Menu gt more gt Units gt Vpp Amplitude 1 0 Vpp Amplitude High front Channel 1 Output On On front 3 AFG310X Push the Utility more more Service Menu Manual Calibration gt Spurious Adjustment gt CH1 Pulse 2 7 MHz buttons AFG325X Push the Utility gt more gt more gt Service Menu gt Manual Calibration gt Spurious Adjustment gt Sine 0 1 MHz buttons AFG3000 Series Set up the spectrum analyzer according to the Spurious adjust setup of the AFG3000 Series Arbitrary Function Generators Service Manual Adjustment Procedures AFG310x Spectrum Analyzer Spurious Adjust Center Frequency Span Spurious Frequency Pulse 2 7 MHz 247 3 MHz 100 kHz 247 3 MHz AFG325x Spectrum Analyzer Spurious Adjust Center Frequency Span Spurious Frequency Sine 0 1 MHz 249 9 MHz 100 kHz 249 9 MHz Sine 50 MHz 200 MHz 100 kHz 200 MHz Sine 200 MHz 50 MHz 100 kHz 50 MHz Pulse 2 7 MHz 247 3 MHz 100 kHz 247
87. ine 1 000 kHz 30 0 mVrms mVrms 30 0 x CF 0 654 mVrms Sine 1 000 kHz 300 0 mVrms mVrms 300 0 x CF 3 35 mVrms Sine 1 000 kHz 800 0 mVrms mVrms 800 0 x CF 8 35 mVrms Sine 1 000kHz 1 500 Vrms Vrms 1 500 x CF 0 0154 Vrms 6 AFG3xx2 only Repeat steps 3 through 5 for the channel 2 output AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification DC Offset Test This test verifies the DC offset accuracy of the arbitrary function generator This test uses a 50 Q terminator It is necessary to know the accuracy of a 50 terminator in advance of this test This accuracy is used for as a calibration factor 1 Connect the 50 terminator to the DMM as shown in Figure 4 4 and measure the register value DMM BNC Dual banana adapter 50 Q terminator Figure 4 4 50 O terminator accuracy 2 Calculate the 50 Q calibration factor CF from the reading value and record as follows CF Calibration Factor 2 1 50 Q Measurement 2 Measurement reading of the DMM CF Q Example 50 50 Q 1 0050 2 1 50 50 50 49 62 Q 0 9962 2 1 50 49 62 3 Connect the arbitrary function generator to the DMM as shown in Figure 4 5 Be sure to connect the 50 2 terminator to the arbitrary function generator Output connector side AFG3000 series DMM
88. ing Operation Function CH1 Pulse Pulse front Leading CH1 AFG3022 18 ns Pulse Parameter Menu menu gt Leading AFG3102 5 ns Edge AFG3252 2 5 ns Delay CH1 0 00 ns Delay front Function CH2 Pulse CH1 CH2 gt Pulse front Leading CH2 AFG3022 18 ns Pulse Parameter Menu menu gt Leading AFG3102 5 ns Edge AFG3252 2 5 ns Delay CH2 0 00 ns Delay front Run Mode CH2 Burst Burst front Trigger Delay 0 0 ns more menu gt Delay Run Mode CH2 Continuous Continuous front Channel 1 Output On On front Channel 2 Output On On front AFG3000 Series Arbitrary Function Generators Service Manual Adjustment Procedures 4 Set up the oscilloscope using the following steps Select menu Setting Operation Horizontal 200 ns div Sec div knob Vertical 200 mV div Volts div knob CH1 and CH2 Vertical position Align the baseline of each CH1 and CH2 Vertical position knob channel 10 11 12 13 14 15 16 17 18 19 20 21 Push the Utility gt more gt more gt Service Menu gt Manual Calibration gt more gt Trigger Delay buttons Change the value of the Trigger Delay in Service menu to the value other than 0 0 ns then return it to 0 0 ns Push the CH1 CA2 button to activate the CHI screen Push the Burst gt more gt Delay buttons to change the CH1 Run mode to Burst mode Change the value of the Trigger Delay in Burst menu to
89. isplay module zn bato pA nenn 6 13 Output board AFG310x AFG325x 6 14 AFG3000 Series Arbitrary Function Generators Service Manual Electrical Parts List Diagrams Replaceable Parts Table of Contents Separation of the rear module and main chassis 6 14 TIVA A E de A S P 6 16 AAE ae WETTER eR da baka E 6 17 Power Supply rn A HR ESO 6 18 A70 A72 CPU board 55 oisi Ian ad 6 18 A82 BNC Insulator board 6 20 Generator board 5452s um e a aga datar azil Ie 6 20 81 BNC Insulator board BNC bracket 6 21 Troubleshooting nenn ke a lea 6 23 Required tools and equipment 6 23 Troubleshooting tree eria Paia saine eai eia nn ice araeo 6 23 Diagnostics cam ae ii Sa erag 6 26 C alibratiOnc e Sin Ben ENSE SEPA E n tana rcnt 6 27 Error Codes ut a S e e eika MOE RR Ger a las tai 6 28 Parts Ordering Information 9 1 Using the Replaceable Parts List 9 2 Abbreviations zs on dek a ar RR ES 9 2 AFG3000 Series Arbitrary Function Generators Service Manual iii List of Tables List of Tables Table 1 1 Table 1 2 Table 1 3 Table 1 4 Table 1 5 Table 1 6 Table 1 7 Tab
90. istortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 60 dBc Sine 1 MHz 1 MHz 2 MHz 3 MHz 4 MHz 5 MHz CH1 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 50 dBc CH2 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 50 dBc Sine 25MHz 25 MHz 50 MHz 75MHz 100 MHz 125 MHz CH1 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 40 dBc CH2 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 40 dBc AFG3000 Series Arbitrary Function Generators Service Manual AFG3000 Series Performance Test Record cont Performance Verification Harmonic Distortion Fundamental 2nd 3rd 4th 5th Limit reference AFG310X Spectrum Analyzer reading Sine 1 MHz 1 MHz 2 MHz 3 MHz 4 MHz 5 MHz CH1 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 50 dBc CH2 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 50 dBc Sine 5 MHz 5 MHz 10MHz 15MHz 20 2 25 MHz CH1 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 37 dBc CH2 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0
91. itrary function generator top down on a soft surface such as an anti static mat 2 Hold the flip foot with the smooth side facing down 3 Gently squeeze the foot so that the hinge on one side fits into the slot and twist slightly to snap into the slot on the other side AFG3000 Series Arbitrary Function Generators Service Manual 6 9 Removal and Installation Procedures Front Panel knob Rear case 6 10 Remove Firmly grasp the knob and pull it away from the shaft Install Align the keyed knob with the shaft and press the knob onto the shaft You will need a torque limiting Torx 15 screwdriver for this procedure Removal To remove the rear case refer to Figure 6 3 and follow these steps 1 Place the arbitrary function generator face down on a soft surface such as an anti static mat 2 Remove the four screws located on the rear case Tilt the handle to gain better access to the top two screws When the chassis grand screw is attached remove it 3 Lift the rear case off of the arbitrary function generator Figure 6 3 Rear case removal Installation To install reverse this procedure NOTE When you remove the rear case the front rubber feet attached to the front case come off Before you reinstall the rear case reattach the front feet to the front case Confirm that they are in place before reassembling the case Remember to attach the chassis grand screw if you removed it AFG3000 S
92. lated modules reporting a failure Table 6 4 Error codes Error code Description Related module Calibration 1101 CH1 Internal offset calibration failure A1x A3x A4x A51 A61 1102 CH2 Internal offset calibration failure A12 A32 A42 A51 A61 1103 CH1 Output offset calibration failure A1x A3x A4x A51 A61 1104 CH2 Output offset calibration failure A12 A32 A42 A51 A61 1105 CH1 Output gain Calibration failure A1x A3x A4x A51 A61 1106 CH2 Output gain Calibration failure A12 A32 A42 A51 A61 1201 CH1 x3dB attenuator calibration failure A1x A3x A4x A51 A61 1202 CH2 x3dB attenuator calibration failure A12 A32 A42 A51 A61 1203 CH1 x6dB attenuator calibration failure A1x A3x A4x A51 A61 1204 CH2 x6dB attenuator calibration failure A12 A32 A42 A51 A61 1205 CH1 x10dB attenuator calibration failure A1x A3x A4x A51 A61 1206 2 x10dB attenuator calibration failure A12 A32 A42 A51 A61 1207 1 x20dB 1 attenuator calibration failure A1x A3x A4x A51 A61 1208 2 x20dB 1 attenuator calibration failure A12 A32 A42 A51 A61 1209 CH1 x20dB 2 attenuator calibration failure A1x A3x A4x A51 A61 1210 2 x20dB 2 attenuator calibration failure A12 A32 A42 A51 A61 1211 CH1 Filter calibration failure A1x A3x A4x A51 A61 1212 CH2 Filter calibration failure A12 A32 A42 A51 A61 1301 CH1 Sine Flatness calibration failure A1x A3x A4x A51 A61 1302 CH2 Sine Flatness calibration failure A12
93. le 1 8 Table 1 9 Table 1 10 Table 1 11 Table 1 12 Table 1 13 Table 1 14 Table 1 15 Table 2 1 Table 3 1 Table 4 1 Table 4 2 Table 5 1 Table 5 2 Table 6 1 Table 6 2 Table 6 3 Table 6 4 Operation mode 1 2 Waveforms nasse else 1 2 1 2 Phase except DC Noise and Pulse 1 3 Lead Delay 1 3 Amplitud 50 ein e esr 1 3 DE Offset 50 2 nr E Ub S eps 1 4 Internal Noise Add 2 2 e reir RR wl ese ne 1 4 Output Characteristics 1 4 Modulation oes els cu visor rex VIS 1 6 A PRO RERUM re rr een ees UA diabe 1 8 SR earPanel AAA 1 8 System Characteristics 1 9 Power E GET ak Nena 1 9 Environmental EMC Safety 1 10 General featur S zt espia es s eere gez aere 2 1 Combination of circuit boards used in each model 3 1 Performance test items 4 3 coi e ts ala 4 4 Adjustments performed after repair 5 1 Testequipment 2 508 d esse pres eee dress 5 2 External inspection check list
94. le level It describes the basic operation of each functional circuit block shown in Figure 3 1 The descriptions for the one and two channel units and the color and monochrome units are slightly different AFG3000 Series Arbitrary Function Generators provide six models with different frequency and number of channels Each model consists of two major sections the platform section and the generator section The platform section is common to each model The combination of circuit boards in each model is shown in Table 3 1 Table 3 1 Combination of circuit boards used in each model Circuit board A11 Generator with Amp 1ch AFG3021 1 AFG3022 AFG3101 AFG3102 AFG3251 AFG3252 A12 Generator with Amp 2ch A31 Generator 1ch A32 Generator 2ch A41 Generator High 1ch 42 Generator High 2ch A51 Output Amp A61 Output Amp 70 CPU without LAN GPIB A72 CPU A75 Front Panel A80 A81 Front BNC Insulator A82 Rear BNC Insulator KO eek KO AFG3000 Series Arbitrary Function Generators Service Manual 3 1 Theory of Operation Generator CH1 amp CH2
95. less labeled typical Typical specifications are provided for your convenience but are not guaranteed Specifications that are check marked with the Y symbol are checked directly or indirectly in the Performance Verification section All specifications apply to the arbitrary function generator unless noted otherwise These specifications are valid under the following conditions Performance Conditions The performance limits in this specification are valid with these conditions The instrument must have been calibrated adjusted at an ambient temperature between 20 and 30 The instrument must be operating at an ambient temperature between 10 C and 40 m The instrument must have had a warm up period of at least 20 minutes The instrument must be in an environment with temperature altitude and humidity within the operating limits described in these specifications AFG3000 Series Arbitrary Function Generators Service Manual 1 1 Specifications Electrical Table 1 1 Operation mode Characteristics Run Mode Description Continuous Modulation Sweep and Burst Burst Count 1 to 1 000 000 cycles or Infinite Internal Trigger Rate 1 000 ms to 500 0 s Table 1 2 Waveforms Characteristics Description Standard Sine Square Pulse Ramp More Sin x x Noise DC Gaussian Lorentz Exponential Rise Exponential Decay
96. libration This procedure uses internal routines to verify that the instrument is operating correctly Equipment required None Prerequisites Power on the instrument and allow a 20 minute warm up before doing this procedure An ambient temperature is between 20 and 30 C Do the following steps to run the internal routines that confirm basic functionality and proper adjustment 1 Select the Diagnostics item the Utility menu Utility front panel gt more bezel gt Diagnostics Calibration gt Execute Calibration 2 Wait until the test is completed 3 Verify passing of the calibration If the calibration completes without any problems the message PASSED is displayed When an error is detected during calibration execution the instrument displays an error code Error codes are described in Error Codes on page 6 28 4 Press any front panel button to exit from the diagnostics NOTE Do not turn off the power while executing calibration Ifthe power is turned off while calibration data stored in internal nonvolatile memory may be lost AFG3000 Series Arbitrary Function Generators Service Manual 6 27 Troubleshooting Error Codes 6 28 If Diagnostics detects a malfunction it displays the character string Fail and the error code Table 6 4 describes the Error code and related modules Category of the Diagnostics Error Code Table 6 4 shows the error code and re
97. n AFG3000 Series Built in Help A built in help system integrated with the User Interface application that ships with this product The help is preinstalled in the instrument Manual Conventions Modules Safety xii 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 conventions Front panel controls and menu names appear in the same case initial capitals all uppercase and so on in the manual as is used on the arbitrary function generator front panel and menus Front panel labels are all upper case letters for example MENU SELECT PULSE GEN and so on E Instruction steps are numbered unless there is only one step Throughout this manual any replaceable component assembly or part of the arbitrary function generator 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 arbitrary function generator is a module Symbols and terms related to safety appear in the Safety Summary near the beginning of this manual AFG3000 Series Arbitrary Function Generators Service Manual Introduction This manual contains information that is needed to properly service the
98. nimize handling of static sensitive modules AFG3000 Series Arbitrary Function Generators Service Manual 6 1 Maintenance Inspection and Cleaning 6 2 General Care 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 Service static sensitive modules only at a static free work station Do not allow anything capable of generating or holding a static charge 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 that is capable of generating a static charge This section describes how to inspect for dirt and damage and how to clean the exterior and interior of the arbitrary function generator Inspection and cleaning are done as preventive maintenance Preventive maintenance when done regularly may prevent malfunctions and enhance reliability Preventive maintenance consists of visually inspecting and cleaning the arbitrary function generator and using general care when operating it Perform preventive maintenance more often if you operate the arbitrary function generator in a severe environment A good time to perform preventive maintenance is just before adjustment o
99. nu Amplitudes Level Menu 1 Push the front panel Top Menu 6 button The Output Menu is displayed at the bottom of the bezel menu Select Output Menu 2 In this example High Limit is set to 5 000 V and Low Limit is set to 5 000 V Load Impedance 0 High Limit 10 Off Low Limit Off On External Add Off Invert Limit Noise 3 Push the Limit bezel button 4 Select High Limit Use numeric keys or the general purpose knob to enter a value Enter 50 mV for High Limit and 50 mV for Low Limit Amplitude Offset High Level 5 Push the front panel Sine button to display the waveform parameter Confirm that High and Low voltage levels were changed You cannot enter any values greater than 50 mV for High level NOTE When you set limit values using Output Menu a level indicator is displayed at left end of graph area Refer to Screen Interface on page 2 10 for the level indicator AFG3000 Series Arbitrary Function Generators Service Manual 2 5 Operating Basics Powering the Instrument On and Off Power On Power Off 2 6 1 Tektronix AFG3102 ETEen eo 2 Use the front panel power button to power on the instrument Wait until the front panel display shows that all power on self tests passed In this example High Limit is set to 5 000 V an
100. o synchronize multiple AFG3000 series arbitrary function generators or synchronize your arbitrary function generator and another instrument use the external reference output connector Except AFG3021 and AFG3022 ADD INPUT The ADD INPUT connector is provided with AFG3101 AFG3102 and AFG3251 AFG3252 This connector lets you add an external signal to the CH1 output signal EXT MODULATION INPUT CH1 and CH2 The CH1 INPUT and CH2 INPUT are independent The signal input level of these connectors controls modula tion depth USB Used to connect a USB controller Type B LAN Used to connect the instrument to a network Connect a 10BASE T or 100BASE T cable here Except AFG3021 AFG3022 GPIB Used to control the instrument through GPIB commands Except AFG3021 AFG3022 Security Slot Use a standard laptop computer security cable to secure your instrument to your location Chassis Ground Screw The chassis ground screw is used to ground the instrument Use a unified coarse screw 6 32 6 35 mm length or less AFG3000 Series Arbitrary Function Generators Service Manual 2 9 Operating Basics Screen Interface 71 000 0 D Message display area Output status Freq Phase 0 0 Main display area Parameter listing or Graph Bezel menu 1 000 N 1 000 U 0 Level meter View tab Figure 2 7 Screen interface Bezel Menu When you push a front panel button the instrument displays the
101. ocedures for performing preventive and corrective maintenance of the arbitrary function generator These instructions include cleaning module removal and installation and fault isolation to the module Replaceable Electrical Parts contains a statement referring you to Replaceable Mechanical Parts where both electrical and mechanical modules are listed Diagrams contains interconnection diagrams Replaceable Mechanical Parts includes a table of all replaceable modules their descriptions and their Tektronix part numbers AFG3000 Series Arbitrary Function Generators Service Manual Preface Finding Other Information Document name This manual mainly focuses on the performance verification troubleshooting and maintenance of the arbitrary function generator See the following list for other documents supporting the arbitrary function generator All documents except Built in Help are on the AFG3000 Series Product Documents CD ROM that shipped with instrument Description AFG3000 Series Quick Start User Manual A quick reference to major features of the instrument and how they operate It also provides several tutorials to familiarize the user with basic instrument features AFG3000 Series Reference Manual An encyclopedia of topics that describe the arbitrary function generator interface and features and gives background information on how to use them It provides Menu Structures User Interface and Programming Informatio
102. om the output connectors The arbitrary function generator input and output connectors are floating inputs outputs WARNING To prevent electrical shocks do not apply voltages in excess of 42 Vpk to any BNC connector ground or to the chassis ground CAUTION Do not short output pins or apply external voltages to Output connectors The instrument may be damaged Do not apply excessive inputs over 5 V to Trigger Input connector The instrument may be damaged Avoid Instrument Damage The instrument will be damaged if a large DC or AC voltage is applied to the output or input connectors To protect the output circuits a fuse adapter is provided as an optional accessory When the instrument is used by students or other inexperienced users always attach the fuse adapter to the output connectors to avoid damage Tektronix part numbers for the fuse adapter are as follows Adapter P N 013 0345 00 0 125 A fuse P N 159 0454 00 3 each __ Figure 2 3 Fuse adapter AFG3000 Series Arbitrary Function Generators Service Manual 2 3 Operating Basics Floating Ground 2 4 A Since the common input and output channel common of the arbitrary function generator is electrically isolated from the chassis ground the instrument chassis and ground line ofthe AC connector you can make a floating connection between the instrument and other equipment All the signal output connectors are connected to the common gro
103. or board BNC bracket You will need a torque limiting Torx T 15 screwdriver a torque wrench 16 mm 5 8 inch deep socket Removal To remove the A81 BNC Insulator and BNC bracket refer to Figure 6 18 and follow these steps 1 Remove the Generator board using the procedures on page 6 20 2 Use the 16 mm 5 8 inch deep socket to remove the nuts and the wave washers from the BNC connectors CHx Output Trigger Input and Trigger Output 3 Remove the three screws that attach the A81 BNC Insulator board to the Generator board 4 Remove the A81 BNC Insulator board and BNC bracket Figure 6 18 A81 BNC Insulator board and BNC bracket removal installation To install reverse this procedure AFG3000 Series Arbitrary Function Generators Service Manual 6 21 Removal and Installation Procedures 6 22 AFG3000 Series Arbitrary Function Generators Service Manual Troubleshooting This section contains information to help you isolate faulty modules in the AFG3000 Series Arbitrary Function Generators Troubleshooting trees Diagnostics Troubleshooting trees show how to find and isolate faulty modules The Diagnostics section describes the diagnostics supplied with the arbitrary function generator its operation and status messages After troubleshooting and identifying the faulty part follow the Removal and Installation Procedures section to exchange the modules Required tools and equipment You may need the foll
104. owing tools and equipment to troubleshoot the arbitrary function generator Table 6 3 Required equipment Tools and equipment Example Digital Multimeter DMM 3 5 or greater digit DMM Oscilloscope with probe Tektronix TDS1000 or TDS2000 series oscilloscope Troubleshooting tree To isolate a problem to a specific troubleshooting procedure use the troubleshooting trees in Figure 6 19 and Figure 6 20 Detailed procedures follow the trees WARNING To prevent electrical shock do not touch the heat sink of the power supply assembly There are potentially dangerous voltages present on the heat sink of the power supply assembly AFG3000 Series Arbitrary Function Generators Service Manual 6 23 Troubleshooting Platform troubleshoot start Remove the Rear cover upper chassis Turn on power Check DC output voltages of power supply at connector on the CPU board No Good voltage Replace the power supply Does the fan operate Replace the fan Are front panel keys Is the LCD display active OK gt Replace the CPU board Yes do Replace the Key board Check oscillation of the No Inverter by bring the gt probe of the oscilloscope close to the Inverter Does the Inverter operate Is the LCD display no problem No Replace the Inverter
105. performance and functionality when the following requirements are met The cabinet covers must be on the AFG3000 Series The instrument must have been performed and passed the procedures under calibration and diagnostics The instrument must have been calibrated adjusted at an ambient temperature between 20 and 30 The instrument must be operating at an ambient temperature between 0 C and 50 C The instrument must have had a warm up period of at least 20 minutes AFG3000 Series Arbitrary Function Generators Service Manual 4 3 Performance Verification Equipment Required Table 4 2 Test equipment Description 1 Digital Multi Meter DMM Minimum requirements AC volts true rms AC coupled Accuracy 0 1 to 1 kHz DC volts Accuracy 50 ppm resolution 100uV Resistance Accuracy 0 05 Q Recommended equipment Agilent 3458A Table 4 2 lists the required equipment used to complete the performance tests Purpose Measures voltage Used in multiple procedures 2 Power Meter 100 kHz to 250 MHz 1 uW to 100 mW 30 dBm to 20 dBm Accuracy 0 02 dB Resolution 0 01 dB R amp S NRVS Measures voltage Used in multiple procedures 3 Power Head 100 kHz to 250 MHz 1 uW to 100 mW 30 dBm to 20 dBm R amp S NRV Z5 Measures voltage Used in multiple procedures 4 Frequency Counter Accuracy 0 01ppm Phase measurement Agilent 53132A Checks clock frequency
106. ressure deionized air approximately 9 psi 2 Remove any remaining dust with a lint free cloth dampened in isopropyl alcohol 7596 solution and rinse with warm deionized water A cotton tipped applicator is useful for cleaning in narrow spaces and on circuit boards NOTE If steps 1 and 2 do not remove all the dust or dirt please contact Tektronix See Contacting Tektronix at the front of this manual Lubrication There is no periodic lubrication required for the AFG3000 Series arbitrary function generator AFG3000 Series Arbitrary Function Generators Service Manual Maintenance 6 6 AFG3000 Series Arbitrary Function Generators Service Manual Removal and Installation Procedures This section describes how to remove and install the major mechanical and electrical modules It provides the following information Preparation Read this section to prepare for module removal and installation WARNING Only qualified personnel should perform service procedures Before doing this or any other procedure in this manual read the General Safety Summary and Service Safety Summary found at beginning of this manual Always disconnect the power cord before disassembling any portion of the arbitrary function generator To prevent damage to electrical components read Preventing ESD on page 6 1 List of Modules on page 6 7 describes where to locate a list of replaceable modules See Figure 9 1 on page 9 6 for an ove
107. rmance Verification 4 2 Calibration Select Diagnostics in the Utility menu Utility front panel gt more bezel gt Diagnostics Calibration gt Execute Diagnostics Wait until the test is completed Verify passing of the diagnostics If the diagnostics completes without finding any problems the message PASSED is displayed When an error is detected during diagnostic execution the instrument displays an error code Error codes are described in Error codes on page 6 28 Press any front panel button to exit the diagnostics This procedure uses internal routines to verify that the instrument is operating correctly Equipment required None Prerequisites m Power on the instrument and allow a 20 minute warm up before doing this procedure An ambient temperature is between 20 C and 30 C Do the following steps to run the internal routines that confirm basic functionality and proper adjustment 1 Select Diagnostics in the Utility menu Utility front panel gt more bezel gt Diagnostics Calibration gt Execute Calibration Wait until the test is completed Verify passing of the calibration If the calibration completes without any problems the message PASSED is displayed When an error is detected during calibration execution the instrument displays an error code Error codes are described in Error Codes on page 6 28 Press any front panel button to exit the d
108. roduction 25552555559 iaa xiii Performance Verification Procedures xiii Strategy for Servicing IR eu e SP ean xiii Tektronix Service ssn vues 222 022 ge RR REDIERE es xiv Performance Conditions cia pans ea ann sen 1 1 Electrical det ge dete 1 2 Inputs Outputs en en a EG 1 8 EATE 1 9 General Features ait A D AT LIS ho 2 1 Inst llation 242582 Abs lane 2 2 Operating Requirements 2 2 Protect Your Instrument from Misuse 2 3 Check Input and Output Connectors 2 3 Avoid Instrument Damage 2 3 Floating Ground des nes Besten ne 2 4 Protect Your DUT eara A rtr baieie agi iez 2 5 Powering the Instrument On and 2 6 Self Test and Self Calibration 2 7 Getting Acquainted with Your 2 8 Front Panel OvVerview ma dado ddr 2 8 Rear Loo Peu aa Per eM EU 2 0 Screen Interface v et 8 ee 2 10 OVERVIEW Lu db eia ete tu araka bai du eek Eda 3 1 Platform UR e GKEak 3 3 CPU Board A TOAT
109. rvice Manual Adjustment Procedures 6 Change the frequency of the power meter setting to 5 MHz same as the arbitrary function generator frequency 7 The power meter shows the value difference from the reference value Set this value to the Flatness field of the arbitrary function generator 8 Repeat steps 5 through 7 until the setting of the arbitrary function generator is 25 MHz AFG302x 100 MHz AFG310x or 240 MHz AFG325x The frequency of the output signal of the arbitrary function generator increases in 5 MHz step every time you push the CH 1 Flatness Next Frequency button Set the frequency of the power meter to the same frequency of the arbitrary function generator in step 6 Pushing the CH1 Flatness Previous Frequency button decreases the output frequency of the arbitrary function generator 9 Push the CH1 Flatness Apply Parameters button to enable the input data for flatness correction 10 AFG3xx2 only Repeat steps 2 through 9 for the channel 2 output 11 Push the button and Save menu button to save the adjusted value AFG3000 Series Arbitrary Function Generators Service Manual 5 7 Adjustment Procedures Spurious adjustment This adjustment minimizes spurious of the output signal by adjusting spurious in the frequency of several points This adjustment is not necessary in the AFG3021 and AFG3022 1 Connect the arbitrary function generator to the spectrum analyzer as shown in Figure 5 4 AFG3000 ser
110. rview of how the entire arbitrary function generator is assembled Read the Summary of Procedures on page 6 8 to understand which procedure to use to access a given module Then read Tools Required on page 6 9 for a list of tools needed to remove and install modules in the arbitrary function generator Flip feet on page 6 9 begins a series of procedures that describe the removal and installation of modules If you are disassembling the arbitrary function generator for cleaning refer to Inspection and Cleaning on page 6 2 for cleaning instructions Adjustment after repair After the removal and replacement of a module due to electrical failure perform the adjustment procedures Refer to the Adjustment Procedures section List of Modules The Replaceable Parts section provides a list of all replaceable modules Any electrical or mechanical module assembly or part listed in the parts list is referred to as a module AFG3000 Series Arbitrary Function Generators Service Manual 6 7 Removal and Installation Procedures Summary of Procedures Disassembly for replacement is best achieved by removing and replacing the modules in a specific order Complete disassembly 15 best achieved by following the procedures in the order given in Figure 6 1
111. side AFG3000 series DMM CH1 Output 50 Q BNC coaxial cables 50 Q terminator BNC Dual banana adapter Figure 4 3 Amplitude tests 4 20 AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification 4 Set up the arbitrary function generator using the following steps Select menu Setting Operation Function Sine Sine front Frequency 1 000000 kHz Frequency Period front Amplitude Units V rms Top Menu gt Amplitude Level Menu gt more matched to that of DMM The voltage unit should be gt Units gt V rms Amplitude 0 030 Vrms Amplitude High front Channel 1 Output On On front 5 Verify that each amplitude measurement is within the range specified in the following tables AFG302x and AFG310x Measurement Range Function Frequency Amplitude Sine 1 000 kHz 30 0 mVrms mVrms 30 0 x CF 0 654 mVrms Sine 1 000 kHz 300 0 mVrms mVrms 300 0 x CF 3 35 mVrms Sine 1 000 kHz 800 0 mVrms mVrms 800 0 x CF 8 35 mVrms Sine 1 000 kHz 1 500 Vrms Vrms 1 500 x CF 0 0154 Vrms Sine 1 000 kHz 2 000 Vrms Vrms 2 000 x CF x 0 0204 Vrms Sine 1 000 kHz 2 500 Vrms Vrms 2 500 x CF 0 0254 Vrms Sine 1 000 kHz 3 500 Vrms Vrms 3 500 x CF x 0 0354 Vrms AFG325x Measurement Range Function Frequency Amplitude S
112. sis 6 15 Pull out the rear module 6 15 Inverter removal 6 16 Inverter installation 6 16 e RED bu n E a e 6 17 Power supply removal 6 18 Remove the BNC connectors 6 19 CPU board removal 6 19 Generator board 1 6 20 A81 BNC Insulator board and BNC bracket removal 6 21 Platform troubleshooting procedure 6 24 Generator troubleshooting procedure 6 25 AFG3000 Series Arbitrary Function Generators Service Manual V List of Figures vi Figure 8 1 Interconnection for AFG302x 8 2 Figure 8 2 Interconnection for AFG310x and AFG325x 8 3 Figure 9 1 Exploded diagram 9 6 Figure 9 2 Exploded diagram rear modules 9 9 AFG3000 Series Arbitrary Function Generators Service Manual General Safety Summary 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 To A
113. tenuator failure A12 A32 A42 2407 CH1 x20dB 1 attenuator failure A1x A3x A4x 2408 2 x20dB 1 attenuator failure A12 A32 A42 2409 1 x20dB 2 attenuator failure A1x A3x A4x 2410 2 x20dB 2 attenuator failure A12 A32 A42 2411 CH1 Filter failure A51 A61 2412 CH2 Filter failure A51 A61 2501 CH1 Sine Flatness failure A1x A3x A4x A51 A61 2502 CH2 Sine Flatness failure A12 A32 A42 A51 A61 AFG3000 Series Arbitrary Function Generators Service Manual 6 29 Troubleshooting 6 30 AFG3000 Series Arbitrary Function Generators Service Manual Electrical Parts List Electrical Parts List Refer to the Replaceable Parts List section for a complete listing and description of replaceable parts for the AFG3000 Series Arbitrary Function Generators AFG3000 Series Arbitrary Function Generators Service Manual 7 1 Electrical Parts List 7 2 AFG3000 Series Arbitrary Function Generators Service Manual Diagrams Diagrams This section describes the electrical operation of the AFG3000 Series using the major circuit blocks or modules Figure 8 1 and Figure 8 2 show the AFG3000 Series module interconnections These diagrams show how the modules in the arbitrary function generator connect together AFG3000 Series Arbitrary Function Generators Service Manual 8 1 Diagrams 1 12 1 1 1 1 ird 2 Output 1 1 1 1 1 I iesi Ext Mod ETZ Ch2 In
114. the value other than 0 0 ns then return it to 0 0 ns Push the Continuous button to change the CH1 Run mode to Continuous mode Push the Phase Delay gt Recover Lead Delay buttons Change the Horizontal setting of the oscilloscope to 1 ns div Write the skew time of two signals from the oscilloscope screen Push the Utility gt more gt more gt Service Menu gt Manual Calibration gt more gt Trigger Delay buttons Set the Trigger Delay to the value written down in step 13 Push the more gt Save gt OK buttons Push the Burst gt more gt Delay buttons to change the CH1 Run mode to Burst mode Change the value of the Trigger Delay in Burst menu to a value other than 0 0 ns then return it to 0 0 ns Push the Continuous button to change the CH1 Run mode to Continuous mode Push the Phase Delay gt Recover Lead Delay buttons Check that the skew time of the two signals on the oscilloscope screen is less than 1 ns AFG3000 Series Arbitrary Function Generators Service Manual 5 11 Adjustment Procedures 5 12 AFG3000 Series Arbitrary Function Generators Service Manual Maintenance Maintenance This section contains the information needed to do periodic and corrective maintenance on the arbitrary function generator The following subsections are included Preparation Tells you how to get ready to do arbitrary function generator maintenance Preventing ESD Provides general information on
115. tors Service Manual 9 6 Replaceable Parts List Fig amp index number 9 2 01 02 03 04 05 06 07 08 09 10 11 12 Tektronix part number 211 1198 00 211 1198 00 211 1198 00 211 1198 00 211 1198 00 211 1198 00 196 3496 00 210 0008 00 386 7416 00 174 5152 00 174 B836 00 119 6930 00 119 7116 00 119 7153 00 342 1146 00 119 6009 00 174 5151 00 213 1061 00 210 0056 00 131 6363 00 220 0265 00 220 0265 00 220 0265 00 220 0265 00 210 1544 00 210 1544 00 210 1544 00 Model AFG3021 AFG3022 AFG3101 AFG3102 AFG3251 AFG3252 AFG3021 3022 3101 3102 3251 3252 AFG3021 3022 3101 3102 3251 3252 AFG3021 3022 3101 3102 3251 3252 AFG3021 3022 3101 3102 3251 3252 AFG3021 3022 3101 3102 3251 3252 AFG3021 3022 3101 3102 3251 3252 AFG3021 3022 3101 3102 3251 3252 AFG3021 3022 3101 3102 3251 3252 AFG3021 3022 3101 3102 3251 3252 AFG3021 3022 3101 3102 3251 3252 AFG3021 3022 3101 3102 3251 3252 AFG3101 3102 3251 3252 AFG3101 3102 3251 3252 AFG3021 3022 3101 3102 3251 3252 AFG3021 AFG3022 AFG3101 3251 AFG3102 3252 AFG3021 AFG3022 AFG3101 3251 Serial Serial f dis effective cont d Replaceable Parts Refer to Figure 9 2 on page 9 9 Qty Name amp description D c A C Rear modules SCREW MACHINE 6 32 X 0 250 PNH STL ZNPL 1 15 TORX DR SC
116. ts using Table 6 1 as a guide Arbitrary function generator that appears 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 cause further arbitrary function generator Table 6 1 External inspection check list Item Inspect for Repair action Repair or replace defective module Cabinet front panel and cover Cracks scratches deformations damaged hardware or gaskets Repair or replace missing or defective knobs Front panel knobs Missing damaged or loose knobs Broken shells cracked Repair or replace defective insulation and deformed modules Clear or wash out contacts Dirt in connectors dirt Connectors Carrying handle bail cabinet Correct operation Repair or replace defective feet module Cleaning Procedure Exterior Do the following steps to clean the arbitrary function generator exterior 1 Remove loose dust on the outside of the arbitrary function generator with a lint free cloth Use care to avoid scratching the clear glass display shield 2 Remove remaining dirt with a lint free cloth dampened in a general purpose detergent and water solution Do not use abrasive cleaners CAUTION To prevent getting moisture inside the arbitrary function generator during external cleaning use only enough liquid to dampen the cloth or applicator To avoid dam
117. uency 150 00 MHz Reference 1 00 dB dB Reference 1 00 dB Frequency 240 0 MHz Reference 2 00 dB dB Reference 2 00 dB CH2 AC Flatness Frequency 100 00 kHz 7 dB Reference Ampl 4 0 dBm Frequency 1 00 MHz Reference 0 15 dB dB Reference 0 15 dB Frequency 5 00 MHz Reference 0 30 dB dB Reference 0 30 dB Frequency 25 00 MHz Reference 0 50 dB dB Reference 0 50 dB Frequency 50 00 MHz Reference 0 50 dB dB Reference 0 50 dB Frequency 100 0 MHz Reference 1 00 dB dB Reference 1 00 dB Frequency 150 00 MHz Reference 1 00 dB dB Reference 1 00 dB Frequency 250 0 MHz Reference 2 00 dB dB Reference 2 00 dB AFG3000 Series Arbitrary Function Generators Service Manual 4 9 Performance Verification AFG3000 Series Performance Test Record Harmonic Distortion Fundamental 2nd 3rd 4th 5th Limit reference AFG302X Spectrum Analyzer reading Sine 20 kHz 20 kHz 40 kHz 60kHz 80kHz 100 kHz CH1 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 60 dBc CH2 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 60 dBc Sine 100 kHz 100 kHz 200 kHz 300 kHz 400 kHz 500 kHz CH1 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 60 dBc CH2 Harmonic D
118. und and the remote interface connector is connected to the chassis ground CAUTION When you make a floating connection review the following precautions The maximum rated voltage between the chassis ground and common ground is 42 Vp p DC peak AC When the potential voltage between the chassis ground and common ground goes over 42 V p the internal protective circuit will be activated to protect the circuits However higher voltage may cause the internal circuits in the instrument to be damaged When a potential voltage exists between the chassis ground and common ground a short circuit from output to ground causes the instrument internal fuse to open and the output is stopped If the fuse opens you need to contact your local Tektronix Service Support When a potential voltage exists between the common ground and chassis ground short circuiting between them may lead to excessive current flow and the internal or external circuits may be damaged YD 5 Common ground Chassis ground Figure 2 4 Grounding equivalent circuit AFG3000 Series Arbitrary Function Generators Service Manual Operating Basics Protect Your DUT Use care when you connect the instrument Channel Output to your DUT device under test To avoid damage to your DUT the following preventive measures are provided Follow these steps to set the limit values for high level and low level Frequency Period Phase Me
119. value To obtain the flatness of sine waveform relative to the 100 kHz sine waveform compensate the output level of sine waveform at 5 MHz interval with the power meter 1 Connect the arbitrary function generator to the power meter with a power head as shown in Figure 5 3 AFG3000 series Power meter cann CH1 Output Power head 50 Q BNC coaxial cables Figure 5 3 Flatness adjustment 2 Set up the arbitrary function generator using the following steps Select menu Setting Operation Amplitude Units Vpp TopMenu gt Amplitude Level Menu gt more gt Units gt Vpp Amplitude 1 0 Vpp Amplitude High front Offset OV Offset Low front Channel 1 Output On On front 3 Push the Utility gt more gt more gt Service Menu gt Manual Calibration gt Flatness gt CH1 Flatness Next Frequency buttons The setting of the first frequency of the arbitrary function generator is 100 kHz 4 Set the frequency parameter of the power meter to 100 kHz and compensate the power meter so that the reading value at 100 kHz may become 0 dB with the frequency dependent offset function Then set up the power meter to the relative measurement mode 5 Push the CH1 Flatness Next Frequency button The setting of next frequency of the arbitrary function generator becomes 5 MHz AFG3000 Series Arbitrary Function Generators Se
120. void Fire or Use Proper Power Cord Use only the power cord specified for this product and Personal Injury certified for the country of use Ground the Product This product is grounded through the grounding conductor of the power cord To avoid electric shock the grounding conductor must be connected to earth ground Before making connections to the input or output terminals of the product ensure that the product is properly grounded Observe All Terminal Ratings To avoid fire or shock hazard observe all ratings and markings on the product Consult the product manual for further ratings information before making connections to the product The common terminal is at ground potential Do not connect the common terminal to elevated voltages Do not apply a potential to any terminal including the common terminal that exceeds the maximum rating of that terminal 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 Keep Product Surfaces Clean and Dry Provide Proper Ventilation Refer to the manual s installation instructions for details on installing the product so it has proper ventil
121. waveforms Table 1 5 Lead Delay Pulse Characteristics Description PV reference page Range 0 ps to Period Pulse Width 0 8 Leading Edge Time Trailing Edge Time Resolution 10 ps or 8 digits Table 1 6 Amplitude 50 Characteristics Description PV reference page 2 Range AFG3021 AFG3022 AFG3101 AFG3102 AFG3251 AFG3252 os 10 mV to 10 Vp p 20 MV to 10 Vp p 50 MVp p to 5 Vp p into open circuit load 20 MVp p to 20 Vp p 40 mVp p to 20 Vp p 100 mV to 10 Vp p v Accuracy 1 of setting 1 mV at 1 kHz sine waveform amplitude gt 10 mV p 0 V offset page 4 20 Resolution 0 1 0 1 MVims 1 mV 0 1 dBm or 4 digits Units Vp p Vrms dBm and Volt High Level and Low Level Output Impedance 500 1 AFG3251 AFG3252 frequency range gt 200 MHz to 240 MHz 50 mV to 4 Vp p into 50 100 mV to 8 Vp p into open circuit load dBm is used only for sine waveform AFG3000 Series Arbitrary Function Generators Service Manual 1 3 Specifications Table 1 7 DC Offset 50 Characteristics Description reference page Range AFG3021 AFG3022 AFG3101 AFG3102 AFG3251 AFG3252 5 Vp ac dc into 500 5 Vy ac dc into 50 2 5 Vy ac de into 500 Accuracy 1 of setting 5 mV 0 5 of amplitude page 4 22 Resolution 1 mV Output Impe
122. z 10 MHz 20 MHz 20 kHz MHz dBc 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 10 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 25 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 50 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 44 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 100 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 38 dBc 300 MHz 600 MHz 20 kHz MHz dBc CH2 Spurious Sine 100 kHz 10 MHz 20 MHz 20 kHz MHz dBc lt 60 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 1 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 10 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 25 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 50 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 44 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 100 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 38 dBc 300 MHz 600 MHz 20 kHz MHz dBc AFG3000 Series Arbitrary Function Generators Service Manual 4 15 Performance Verification AFG3000 Series Performance Test Record Spurious AFG325X Spectrum Analyzer Measurement Frequency Center Span RBW Spurious Frequency Spurious Max Limit Frequency CH1 Spurious Sine 100 kHz 10 MHz 20 MHz 20 kHz MHz dBc 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 1 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc

AFG3000 Series Arbitrary/Function Generators Service Manual

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