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AFG3000 Series Service Manual

1. 1 Insert the AC power cord into the power receptacle on the rear panel 2 Usethe 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 and 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 Tektronix 3102 er 00000 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 Edit Utility System 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 Ca
2. UE 24 EU 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 to synchronize multiple AFG3000 series arbitrary function generators or synchronize your arbitrary function generator and another instrument use the external reference output connector Except AFG3021B and AFG3022B ADD INPUT The ADD INPUT connector is provided with AFG3101 AFG3102 and AFG3251 AFG3252 This connector lets you add an external signal to the 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 IOBASE T 100BASE T cable here GPIB Used to control the instrument through GPIB commands 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 46 32 6 35 mm length or less AFG3000 Series Arbitrary Function Generators Service Manual 2 9 Operating Basics Screen Interface 71 000 US 0 2 10 Message d
3. 7 2 Figure 7 3 Interconnection for AFG310x and AFG325x 7 3 Figure 8 1 Exploded diagram 8 7 Figure 8 2 Rear modules 8 10 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 Avoid 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
4. 4 3 Table 4 2 Test 4 4 Table 5 1 Adjustments performed after repair 5 1 Table 5 2 Test 5 2 Table 6 1 External inspection check 5 6 3 Table 6 2 Internal inspection checklist 6 4 Table 6 3 Required equipment 6 25 Table 6 4 Error cod s deek daa Eee E S RE Ea zeati 6 30 AFG3000 Series Arbitrary Function Generators Service Manual List of Figures 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 AFG3000 Series dimensions 1 14 RM3100 Rackmount dimensions 1 14 EE 2 2 Output and Input 2 3 Fuse adapter EIE p eee aa eik green 2 3 Grounding equivalent circuit 2 4 Front panel controls 2 8 Rear panel ra eie ce a ete Dog 2 9
5. 6 12 Figure 6 6 Front case removal 6 13 Figure 6 7 A75 front panel board 1 6 13 Figure 6 8 Display module removal 6 14 Figure 6 9 Output board removal 6 15 Figure 6 10 Separation of the rear module and main chassis 6 16 Figure 6 11 Pull out the rear 6 16 Figure 6 12 Inverter removal 6 17 Figure 6 13 Inverter installation 6 17 Figure 6 14 Fan removal 6 18 Figure 6 15 Power supply removal 6 19 Figure 6 16 Remove the BNC connectors 6 20 AFG3000 Series Arbitrary Function Generators Service Manual List of Figures vi Figure 6 17 CPU board removal 6 21 Figure 6 18 Generator board removal 6 22 Figure 6 19 A81 BNC Insulator board and BNC bracket removal 6 23 Figure 6 20 Platform troubleshooting procedure 6 26 Figure 6 21 Generator troubleshooting procedure 6 27 Figure 7 1 Interconnection for 011 7 1 Figure 7 2 Interconnection for 302
6. pa ota usta e e a e 3 3 Gener tor SECTION ateta IRURE REN op SE Rete RE Re daeta er aga 3 4 Performance Verification Performance Verification 4 1 Self Tests a gar C Gat ne EROR MR e Bs ENG Pa eg 4 1 Performance Tests sve gada a gazia e Dai ms ase we 4 3 Test R cord ERU SEES 4 5 Frequency Period Test er rer HERE I 4 20 Amplitude Test i s ILLA eR neun OPES RER Lehen 4 21 DE Ofiset Tests 4 23 AFG3000 Series Arbitrary Function Generators Service Manual i Table of Contents Elatness Test o ea ARRA RN d 4 26 Harmonics Distortion Test 4 28 Total Harmonic Distortion 4 30 Spurious Test ae Dente i eR eee d Ode 4 32 Rise Falltime Test 4 35 Adjustment Procedures Maintenance Adjustment Procedures 5 1 oe e HO DRE ERES 5 1 Equipment Required 5 2 Performance Conditions ESI REED SR RUD MES 5 3 Enable the Service Aa EA 5 3 Save Menur e Dei ebb
7. MM J198 Trigger Out J380 J100 J170 3390 v J 854 A51 A61 J 832 J 150 Filter amp Output Amplifier 1400 CH1 DC offset Output J 856 Quia M 340 1100 HR re TR un ee RE RC 1902 J 502 A72 CPU J 600 USB J510 4700 J 860 J 866 J862 0900 1920 1300 1400 1404 SW S800 T 17474145 eie aa Power Supply Unit 1 J100 1 j 11 LCD Inverter p EAM 1 A75 Front ILCD Display L 4 usual aaa ada 1 Panel Board REPE E Figure 7 3 Interconnection for AFG310x and AFG325x AFG3000 Series Arbitrary Function Generators Service Manual 7 3 Diagrams 7 4 AFG3000 Series Arbitrary Function Generators Service Manual Replaceable Parts List Replaceable Parts List 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 in your order Part number
8. 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 gt more gt more gt Service Menu gt 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 4 Set up the spectrum analyzer according to the Spurious adjust setup of the AFG3000 Series 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 3 MHz Push the CHI Sine Pulse x x MHz Gain menu button Adjust the Spurious Gain value with the rotary knob to minimize the spurious display on the spectrum analyzer screen Push the CH1 Sine MHz Phase menu button Adjust the Spurious Phase value with the rotary knob to minimize the spurious display on the spectrum analy
9. Rise Fall Time AFG325x CH1 Rise Time Amplitude 1 0 Vp 2 5 ns Fall Time Amplitude 1 0 rr 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 1 0 Vp 2 5 ns Fall Time Amplitude 1 0 V rr 2 5 ns Rise Time Amplitude 5 0 Vp 2 5 ns Fall Time Amplitude 5 0 Vp 2 5 ns AFG3000 Series Arbitrary Function Generators Service Manual 4 19 Performance Verification Frequency Period Test This test verifies the frequency accuracy of the arbitrary function generator output frequencies are derived from a single generated frequency Only one frequency point of channel 1 is required to be checked 1 Connectthe arbitrary function generator to the frequency counter as shown in Figure 4 1 Frequency counter CH1 Output Figure 4 1 Frequency Period tests 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 Setup 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 Check that reading of the Frequen
10. v Fan 12 Fan USB Controller EN BERRE CPU Circuit Le L 8 Front GPIB 14 5 Remote MPU ROM RAM etc Panel Board GA Interface jor GPIB amp r p LAN Safety Ground Area gt LAN 1 Local Regulators Primary Circuit 5V 3 3V 1 28 4 3 V LCD in Power Supply Unit 18 bk Inverter p Monochrome 145V Display 35V Figure 3 1 AFG3000 Series block diagram 3 2 AFG3000 Series Arbitrary Function Generators Service Manual Theory of Operation Platform CPU Board 72 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 43 3 V and 5 0 V for the logic circuit Remote Interface The A72 board contains a 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 1 0 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 power supply module provides 4 3 V 15 V and 5 V to the circuit This power supply module
11. Jitter rms typical Burst lt 500 ps trigger input to signal output AFG3000 Series Arbitrary Function Generators Service Manual 1 11 Specifications Table 1 12 Rear panel Characteristics External modulation input Description Input range 1 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 Impedance AFG3011 AFG3101 AFG3102 AFG3251 and AFG3252 50 AC coupled Amplitude 1 2 Vp p into 50 Q External reference input Impedance 1 KQ AC coupled Required input voltage swing 100 to 5 Vp p Lock range 10 MHz 35 kHz CH1 Additional input AFG3101 AFG3102 AFG3251 and AFG3252 Impedance 50 Input range 1 V to 1 V DC peak AC Bandwidth DC to 10 MHz 3 dB at 1 Vp p General Table 1 13 System characteristics Characteristics Warm up time typical Description 20 minutes minimum Power on self calibration typical lt 168 Configuration times typical USB LAN GPIB Function change 95 ms 103 ms 84 ms Frequency change 2 ms 19 ms 2 ms Amplitude change 60 ms 67 ms 52 ms Select user Arb 88 ms 120 ms 100 ms Data download typical 4000 points waveform data GPIB 42 ms USB 20 ms LAN 84 ms Acoustic noise typical 50 dBA Weight approximate 4 5 kg Dimensions See Figure 1 1 and
12. Protect Your Instrument from Misuse Check Input and Output Connectors Dren 7 Output Output Output Input SEE ee ummmm u a A e gt SO zum m fe mm Eii TIL Output Input Do not mistake Output connectors for Input Figure 2 2 Output and Input connectors The instrument has both input and output connectors on the front panel When connecting a cable be sure to distinguish the input connector from the output connectors The arbitrary function generator input and output connectors are floating inputs outputs WARNING To avoid personal injury due to electric shock 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 ifa 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 zu Figure 2 3 Fuse adapter
13. and 50 AFG3000 Series Arbitrary Function Generators Service Manual 4 1 Performance Verification Calibration 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 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 30 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 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 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 i
14. AFG3000 Series Arbitrary Function Generators Service Manual 2 3 Operating Basics Floating Ground 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 the signal output connectors are connected to the common ground 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 Vp 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 Common ground
15. 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 5 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 backward Figure 6 5 Top cover removal Installation To install reverse this procedure Front Case You will need a torque limiting Torx 15 screwdriver Removal To remove the front case refer to Figure 6 6 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 6 12 AFG3000 Series Arbitrary Function Generators Service Manual Removal and Installation Procedures Mm wm Figure 6 6 Front case removal Installation To install reverse this procedure Remember to attach the rubber front feet to the front case 75 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 7 and follow these steps 1 Remove the front case using the procedures on page 6 12 2 Remove
16. Delay CH2 0 00 ns Delay front Run Mode CH2 Burst Burst front Trigger Delay 0 0 ns more menu 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 Setup 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 5 Push the Utility gt more gt more gt Service Menu gt 10 11 12 13 14 15 16 17 18 19 20 21 Manual Calibration gt more gt Trigger Delay buttons Change the value ofthe Trigger Delay in Service menu to the value other than 0 0 ns then return it to 0 0 ns Push the CHI CH2 button to activate the 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 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
17. en xiii Performance Verification Procedures xiii Strategy for Servicing ix eget eRe RU a ATE a xiii Tektronix Service Offerings xiv Specifications 1 1 Performance Conditions png egi geziz egie Oe gatie Di EON zute US 1 1 Electrical Geta ea etr ita 1 1 Inputs Outputs aS ZEATE Ba 1 11 General ubi ne ENERO a fe n s 1 12 Operating Basics 2 1 General Features e ie ve ai dien dek he coluber dtd abd pito diio vus 2 1 Installation este Paia arat E a ES 2 2 Protect Your Instrument from Misuse 2 3 Eloating Ground uses ee Re EE EES 2 4 Protect Your t een iae ASA 2 5 Powering the Instrument On and 2 6 Self Test and Self Calibration 2 7 Getting Acquainted with Your Instrument 2 8 Screen Interface Lee ra exo Ie a Sdn 2 10 Theory of Operation 3 1 b ag b EIN EE EMT AE 3 1 Platformoi
18. f Generator CHI amp CH2 25627 A12 A32 A42 AD 51 61 Filter amp Output 2 Generator Pre Amp Amplifier On Chip DC Offset Po SOA Calibration g gt 4 gt Circuit EEE 7 ADD In rox except AFG302x 50 ee Se mel le ee ee ER ee el EN and AFG3011 152 Generator CHI A11 A31 A41 A43 Local Regulators 1 8V 43 3 V Ext Mod i Trigger _ AR d be Gn A bg Circuit Ext 94 pod x Y p Trig Output T except x Circuit rigger AFG302x lj Y 2t Ext Ref Generator E an t AD t l Onchip Pre Amp Mer ex ZEA In Amplifier o Output Lou DCOfset gt Ext Mod CH1 In 1 v Calibration BNC Insulator Floating Ground Isolator gt Circuit A81 SETS ME MERETUR EO 5 en D RENE RE RE DR Insulator 8 dem cum e mm ctu cM ue MI RR ea Dur b 872 CPU
19. 800 0 x CF 8 35 mVrms 1 500 Vrms at 1 00 kHz 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 3 500 Vrms at 1 00 kHz 1 500 x CF 0 0154 eee pe 12 I 3 500 x 0 0354 Vrms 1 500 x CF 0 0154 Vrms 3 500 x CF 0 0354 Vrms 2 500 x CF 0 0254 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 2 000 Vrms at 1 00 kHz 2 000 x CF 0 0204 Vrms 2 500 Vrms at 1 00 kHz 2 000 x CF 0 0204 Vrms 2 500 x CF 0 0254 Vrms 2 500 x CF 0 0254 Vrms 3 500 Vrms at 1 00 kHz 1 500 x CF 0 0154 Vrms 3 500 x CF 0 0354 Vrms 1 500 x CF 0 0154 Vrms 3 500 x CF 4 0 0354 Vrms AFG325x 2 1 50 Measurement Q 1 Amplitude 0 030 Vrms at 1 00 kHz 80 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 Vrms at 1 00 kHz 1 500 x
20. AFG3011 Frequency Period front 10 00 MHz AFG302XB AFG310x AFG325x Amplitude Units Vpp TopMenu Amplitude Level Menu more Units gt Vpp Amplitude 1 0 Vpp Amplitude High front Offset 0 0V TopMenu Offset Low front Channel 1 Output On On front 3 Setup the Oscilloscope so the square waveform of 5 division amplitude is displayed AFG3000 Series Arbitrary Function Generators Service Manual 4 35 Performance Verification 4 Verify that the rise fall time ofthe 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 AFG3011 Oscilloscope Measurement Function Frequency Offset Amplitude Vertical Horizontal Limit Square 2 00 MHz 0 0 V 1 0 Vp 200 mV div 20 ns div or 50 ns 25 ns div Square 2 00 MHz 0 0 V 10 0 Vp 200 mV div 20 ns div or lt 50 ns with x10 attenuator 25 ns div AFG302xB Oscilloscope Measurement Function Frequency Offset Amplitude Vertical Horizontal Limit Square 10 00 MHz 0 0 V 1 0 200 mV div 5 ns div lt 18 ns Square 10 00 MHz 0 0 V 10 0 Vp 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 1 0 Vp 200 mV div 2 ns div 5ns Square 10 00
21. AFG3022B AFG3102 AFG3252 only Remove the EXT Modulation CH2 Input BNC connector Disconnect the Peltola cable at J852 on the CPU board 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 from the EXT Modulation CH1 Input the Ext Ref Input and the Ext Ref Output connectors These connectors are mounted on the CPU board a Usethe 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 Insulator Nut and spring washer Figure 6 16 Remove the BNC connectors 5 Disconnect the AC input cable at 7860 on the CPU board 6 Disconnect the A75 Key Board cable at J300 on the CPU board 6 20 AFG3000 Series Arbitrary Function Generators Service Manual Removal and Installation Procedures 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 7 e dd Figure 6 17 CPU board removal Installation To install reverse this procedure Remember to attach the wave washers and the insulator bushings NOTE After you replace the CPU board you must set the serial number
22. AFG3102 AFG3251 AFG3252 AFG3101 AFG3251 AFG3102 AFG3252 AFG3101 AFG3251 AFG3102 AFG3252 AFG3101 AFG3102 AFG3251 AFG3252 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3101 AFG3102 AFG3251 AFG3252 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3251 AFG3252 discontd Qty 1 1 Name amp description REAR CASE ASSY 202041101 W FEET amp HANDLE REAR CASE ASSY 202043501 W FEET amp HANDLE 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 AFG3021B MARKER IDENT LABEL REAR PANEL 2 05 X 9 51 0 010 PC FILM LEXAN W ADHESIVE BACK SAFETY CONTROLLED AFG3022B 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 MARKER IDENT LABEL REAR PANEL 2 05 X 9 51 0 010 PC FILM LEXAN W ADHESIVE BACK SAFETY CONTROLLED AFG3011 FOOT REAR BLACK 0 4 X 0 4 X 0 1 HEIGHT FOOT FRONT FLIPMPC ABS SILVER GRAY GASKET ELEC CONDUCTIVE URETHANE FOAM 12 7 MM W X 3 2MM 125 MM L W ADHESIVE GASKET ELEC CONDUCTIVE URETHANE FOAM 12 7 MM W X 3 2MM T X 138 MM L W ADH
23. 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 8 1 Replaceable Parts List Using the Replaceable Parts List Parts list column descriptions This section contains a list of the mechanical and or electrical components that are replaceable for the arbitrary function generator Use this list to identify and order replacement parts The following table describes each column in the parts list Column Column name Description 1 Figure amp 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 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 part is good for all serial numbers 6 Qty This indicates the quantity of parts used 7 Name amp description An item name is separated from the description by a colon 2 Because of space limitations an item name may sometimes appear as incomplete Use the U S Fe
24. Screen interface 2 10 AFG3000 Series block diagram 3 2 Frequency Period tests 4 20 50 Q terminator 4 21 Amplitude tests 4 21 50 terminator 4 23 DE Offset tests 5 2522 925 64 dei Als 4 24 AC flatness tests 4 26 Harmonic distortion tests 4 28 Total Harmonic distortion tests 4 30 Spurious 4 32 Rise Fall time tests 4 35 Reference Clock adjustment 5 4 LF adjustment 5 5 Flatness adjustment 5 6 Spurious 5 8 Trigger delay adjustment 5 10 Disassembly 6 8 Figure 6 2 Removing and installing the flip feet 6 9 Figure 6 3 Rear case 1 6 10 Figure 6 4 Pasting the urethane foam gaskets 6 11 Figure 6 5 Top cover removal
25. Use the pliers to bend the two fan bracket tabs into place and secure the fan 6 18 AFG3000 Series Arbitrary Function Generators Service Manual Removal and Installation Procedures Power Supply You will need a torque limiting Torx T 15 screwdriver Removal To remove the power supply module refer to Figure 6 15 and follow these steps 1 Remove the fan using the procedures on page 6 18 2 Disconnect the three cable connectors at J866 J862 and J900 Remove the four screws attaching the power supply module and the insulator to the rear sub panel Figure 6 15 Power supply removal installation To install reverse this procedure AFG3000 Series Arbitrary Function Generators Service Manual 6 19 Removal and Installation Procedures A72 CPU Board You will need a torque limiting Torx T 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 16 and follow these steps 1 Usethe 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 Remove the CH1 Add Input BNC connector Disconnect the peltola cable at J370 on the Generator board Use the 16 mm 5 8 inch deep socket to remove the nut and the wave washer from the BNC connector Push the CH1 Add Input BNC connector and the insulator bushing to remove them from the rear sub panel 3
26. ac dc into 50 Q AFG3101 AFG3102 5 V dc into 500 AFG3251 AFG3252 2 5 V dc into 50 Q v Accuracy page 4 23 AFG3011 2 of setting 10 mV 1 of amplitude V setting lt 5 V 2 of setting 10 mV 1 of amplitude aa typical setting gt 5 V AFG3021B AFG3022B 1 of setting 5 mV 0 5 of amplitude Vp p AFG3101 AFG3102 AFG3251 AFG3252 Resolution 1mV Output impedance 50 Q 1 AFG3011 20 V x ac dc into open circuit load AFG3021B AFG3022B and AFG3101 AFG3102 10 V ac dc into open circuit load AFG3251 AFG3252 5 V dc into open circuit load 2 AFG3011 Add 1 0 mV per C for operation outside the range of 20 C to 30 C AFG3021B AFG3022B and AFG3101 AFG3102 Add 0 5 mV per for operation outside the range of 20 C to 30 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 Vp p of signal waveform Resolution 196 AFG3000 Series Arbitrary Function Generators Service Manual 1 5 Specifications Table 1 9 Output characteristics Characteristics Sine wave v Flatness AFG3011 Description at 1 0 Vp p amplitude 4 dBm relative to 100 kHz lt 5 MHz 0 15 dB 5 MHz lt frq lt 10 MHz 0 3 dB AFG3021B AFG3022B lt 5 MHz 40 15 dB 5 MHz lt frq lt 20 MHz 0 3 dB 20 MHz lt frq lt 25 MHz 40 5 dB AFG3101 AFG3102 lt 5
27. 005 Vdc 40 005 Vdc 2 500 Vdc 72 500 x CF 0 030 Vdc 72 500 x CF 0 030 CH2 DC Offset 42 500 Vdc 42 500 x CF 0 030 Vdc 42 500 x CF 0 030 Vdc 0 000 Vdc 0 005 Vdc 40 005 Vdc 2 500 Vdc 2 500 x CF 0 030 Vdc 72 500 x CF 0 030 AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification AFG3000 Series Performance Test Record AC Flatness AFG3011 CH1 AC Flatness Frequency 100 00kKHZ 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 10 00 MHz Reference 0 30 dB dB Reference 0 30 dB AFG302xB CH1 AC Flatness Frequency 100 00kKHZ 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 AC Flatness Frequency 100 00 kHz dB Reference Ampl 4 0 dBm Frequency 500 00 kHz Reference 0 15 dB dB Reference 0 15 dB Freq
28. 3 3 N m Screwdriver with 1 4 inch flat blade Phillips head screwdriver Pliers all purpose and needle nose Tweezers 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 Grip the flip foot with the pliers as close to the notches as possible and squeeze gently on the foot 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 arbitrary function generator top down on a soft surface such as an anti static mat Hold the flip foot with the smooth side facing down 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 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 Rear Case You will need a torque limiting Torx T 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 suc
29. AFG3251 AFG3252 AFG3011 35 348 1525 00 AFG3021B AFG3022B AFG3101 2 FOOT FRONT SANTOPRENE BLACK 64 DEROMETER TEXTURED AFG3102 AFG3251 AFG3252 AFG3011 36 202 0410 01 AFG3021B AFG3022B AFG3011 1 CASE FRONT PC ABS PLASTIC BLEND SILVER GRAY SAFETY CONTROLLED 202 0434 01 Eo 01 AFG3102 AFG3251 1 CASE FRONT 202041000 WITH METALIZED SAFETY CONTROLLED AFG3252 37 335 1171 00 AFG3021B AFG3101 AFG3251 1 MARKER IDENT LABEL FRONT PANEL 1 CH 5 33 X 6 24 0 010 PC AFG3011 FILM LEXAN W ADHESIVE BACK SAFETY CONTROLLED 335 1172 00 AFG3022B AFG3102 AFG3252 1 MARKER IDENT LABEL FRONT PANEL 2 CH 5 33 X 6 24 0 010 PC FILM LEXAN W ADHESIVE BACK SAFETY CONTROLLED 38 366 0841 00 AFG3021B AFG3022B AFG3101 1 KNOB CAP 1 380 DIA PC ABS SILVER GRAY AFG3102 AFG3251 AFG3252 AFG3011 39 335 1289 01 1 MARKER IDENT LABEL FRONT PANEL 6 100 X 3 800 0 015 POLYCARBONATE FRENCH 335 1290 01 1 MARKER IDENT LABEL FRONT PANEL 6 100 X 3 800 0 015 POLYCARBONATE GERMAN 335 1291 01 1 MARKER IDENT LABEL FRONT PANEL 6 100 X 3 800 0 015 POLYCARBONATE JAPANESE 335 1292 01 1 MARKER IDENT LABEL FRONT PANEL 6 100 X 3 800 0 015 POLYCARBONATE SIMPLE CHINESE 335 1293 01 1 MARKER IDENT LABEL FRONT PANEL 6 100 X 3 800 0 015 POLYCARBONATE TRADITIONAL CHINESE 335 1294 01 1 MARKER IDENT LABEL FRONT PANEL 6 100 X 3 800 0 015 POLYCARBONATE KOREAN 335 1539 00 1 MARKER IDENT LABEL FRONT PANEL 6 100 X 3 800 0 015 POLYCARBONATE RUSSI
30. 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 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 Inthis example High Limit is set to 5 000 V and Low Limit 1s set to 5 000 V Load t Impedance 0 High Limit Invert Low Limit External Add Off 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
31. MHz 40 15 dB 5 MHz lt frq lt 25 MHz 40 3 dB 25 MHz lt frq lt 100 MHz 0 5 dB AFG3251 AFG3252 lt 5 MHz 0 15 dB 5 MHz lt frq lt 25 MHz 40 3 dB 25 MHz lt frq lt 100 MHz 0 5 dB 100 MHz lt frq lt 200 MHz 1 0 dB 200 MHz x frq lt 240 MHz 2 0 dB PV reference page page 4 26 W Harmonic distortion AFG3011 at 1 0 Vp p amplitude p p 10 Hz lt frq lt 20 kHz lt 60 dBc 20 kHz lt frq lt 1 MHz lt 55 dBc 1 MHz lt frq lt 10 MHz lt 45 dBc AFG3021B AFG3022B 10 Hz lt frq lt 20 kHz lt 70 dBc 20 kHz lt frq 1 MHz 60 dBc 1 MHz lt frq lt 10 MHz lt 50 dBc 10 MHz x frq lt 25 MHz lt 40 dBc AFG3101 AFG3102 10 Hz lt frq 1 MHz 60 dBc 1 MHz lt frq 5 MHz 50 dBc 5 MHz lt frq lt 100 MHz lt 37 dBc AFG3251 AFG3252 10 Hz lt frq lt 1 MHz lt 60 dBc 1 MHz lt frq 5 MHz 50 dBc 5 MHz lt frq lt 25 MHz 37 25 MHz lt frq x 240 MHz lt 30 dBc page 4 28 v Total harmonic distortion at 1 Vp p amplitude 10 Hz to 20 kHz 0 2 page 4 30 AFG3000 Series Arbitrary Function Generators Service Manual Specifications Table 1 9 Output characteristics cont Characteristics Description PVreference page v Spurious non harmonic at 1 Vp p amplitude page 4 32 AFG3011 10 Hz frq 1 MHz 60 dBc 1 MH
32. 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 Amplifier 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 3 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 A51 A61 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 Two types of Performance Verification procedures can be performed on this product Self Tests and Performance Tests You may not need to perform
33. 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 supplied through the inverter A monochrome display is used in the AFG3021B 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 81 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 A11 A12 A43 Generator with Amp Board 31 32 41 42 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
34. are shown 51 020 mm and 482 6 2 19 00 2 465 5 a TH 18 32 373 1 47 1 47 t 25 4 1 00 101 6 176 200 1016 6 94 Pu U po 5 EO Front 36 8 1 45 Figure 1 2 RM3100 Rackmount dimensions 1 14 AFG3000 Series Arbitrary Function Generators Service Manual Operating Information Operating Basics General Features Table 2 1 General features This section provides installation and operating information that is necessary for service The following table and bulleted list describe the general features of the AFG3000 Series Arbitrary Function Generators Feature AFG3011 AFG3021B AFG3252 Channel 1 1 2 1 2 1 2 Sine 10 MHz 25 MHz 100 MHz 240 MHz Pulse Square 5 MHz 12 5 MHz 50 MHz 120 MHz Ramp Gaussian 100 kHz 250 kHz 1MHz 2 4 MHz Arbitrary Waveform Length 2 to 131 072 2 to 131 072 2 to 131 072 2 to 131 072 Sample Rate Waveform Length lt 16384 250 MS s 250 MS s 1 GS s 2 GS s 16384 Waveform Length 250 MS s 250 MS s 250 MS s 250 MS s Resolution 14 bits 14 bits
35. e 1 00 MHz 10 MHz 20MHz 20kHz MHz dBc lt 50 dB 300 MHz 600 MHz 20 kHz MHz dBc P 10 00 MHz 10 MHz 20MHz 20kHz MHz dBc 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc AFG302xB Spectrum analyzer Measurement Frequency Center Span RBW Spurious Spurious Limit Frequency Frequency Max 100 00 kHz 10 MHz 20MHz 20kHz MHz dBc lt 60 dBc 300 MHz 600 MHz 20 kHz MHz dBc 1 00 MHz 10 MHz 20MHz 20kHz MHz dBc lt 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc 10 00 MHz 10 MHz 20MHz 20kHz MHz dBc lt 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc 25 00 MHz 10 MHz 20 MHZ 20kHz 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 20MHz 20kHz MHz dBc 60 dBc 300 MHz 600 MHz 20kHz MHz dBc 1 00 MHz 10 MHz 20MHz 20kHz MHz dBc lt 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc 10 00 MHz 10 MHz 20MHz 20kHz MHz dBc lt 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc 25 00 MHz 10 MHz 20MHz 20kHz MHz dBc lt 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc 50 00 MHz 10 MHz 20MHz 20kHz MHz dBc lt 44 dBc 300 MHz 600 MHz 20 kHz MHz dBc 100 00 MHz 10 MHz 20MHz 20kHz MHz dBc lt 38 dBc 300 MHz 600 MHz 20 kHz MHz dBc 4 33 AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification AFG325x Spectrum analyzer Measurement Frequency Center Span RBW Spurious S
36. plating Solder connections Cold solder or rosin joints Resolder joint and clean with ethyl alcohol AFG3000 Series Arbitrary Function Generators Service Manual Maintenance Table 6 2 Internal inspection check list cont Item Inspect for Wiring and cables Loose plugs or connectors Burned broken or frayed wiring 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 Interior Cleaning Procedure Do the following steps to clean the arbitrary function generator interior 1 Blow off dust with dry low pressure deionized air approximately 9 psi 2 Remove any remaining dust with a lint free cloth dampened in isopropyl alcohol 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 re
37. pulse period AFG3021B AFG3022B 18 ns to 0 625 pulse period AFG3101 AFG3102 5 ns to 0 625 pulse period AFG3251 AFG3252 2 5 ns to 0 625 pulse period Resolution 10 ps or 4 digits Overshoot typical lt 5 Jitter rms typical AFG3021B AFG3022B 500 ps AFG3011 AFG3101 AFG3102 200 ps AFG3251 AFG3252 100 ps Ramp Linearity AFG3251 AFG3252 AFG3011 at frequency 1 kHz amplitude 1 Vp p symmetry 100 lt 0 2 of peak output at 10 to 90 of amplitude range AFG3021B AFG3022B lt 0 1 of peak output at 10 to 90 of amplitude range AFG3101 AFG3102 lt 0 15 of peak output at 10 to 90 of amplitude range Symmetry 0 to 100 Arbitrary Rise time fall time typical AFG3011 lt 80 ns AFG3021B AFG3022B lt 20 ns AFG3101 AFG3102 85 AFG3251 AFG3252 365 AFG3000 Series Arbitrary Function Generators Service Manual Specifications Table 1 9 Output characteristics cont Characteristics Description PVreference page Jitter rms typical AFG3021B AFG3022B 4 ns AFG3011 AFG3101 AFG3102 1 ns at 1 GS s 4 ns at 250 MS s AFG3251 AFG3252 500 ps at 2 GS s 4 ns at 250 MS s 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 Externa
38. 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 ventilation AFG3000 Series Arbitrary Function Generators Service Manual vii General Safety Summary viii Symbols and Terms A A 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 m WARNING Protective Ground CA
39. 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 module 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 seven 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 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 1 A12 Generator with Amp 2ch A31 Generator 1ch A32 Generator 2ch A41 Generator High 1ch A42 Generator High 2ch A43 Generator A51 Output Amp A61 Output Amp 72 CPU 75 Front Panel A80 BNC Peltola A81 Front BNC Insulator A82 Rear BNC Insulator sl eu es po p AFG3000 Series Arbitrary Function Generators Service Manual 3 1 Theory of Operation
40. the seven screws attaching the A75 front panel board to the main chassis 3 Disconnect the front panel board cable Figure 6 7 A75 front panel board removal Installation To install reverse this procedure AFG3000 Series Arbitrary Function Generators Service Manual 6 13 Removal and Installation Procedures Display Module Backlight cable connector You will need a torque limiting Torx T 15 screwdriver and tweezers Removal To remove the display module refer to Figure 6 8 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 Figure 6 8 Display module removal Installation To install reverse this procedure Output Board AFG310x AFG325x 6 14 You will need a torque limiting Torx T 15 screwdriver Removal To remove the output board refer to Figure 6 9 and follow these steps 1 Disconnect the two peltola cables at J100 CH1 from J380 CH2 from J780 and J170 CH1 from J390 CH2 from J790 on the output board 2 Remove the two screws attaching the output module to the rear sub panel 3 Gently pull out the output board toward the rear according to the guide AFG3000 Series Arbitrary Function Generators Service Manual Removal and Install
41. to period pulse width 0 8 leading edge time trailing edge time Resolution 10 ps or 8 digits Table 1 6 Amplitude Characteristics Description PVreference page Range AFG3011 20 to 20 Vp 40 mV to 40 Vp p into open circuit load AFG3021B AFG3022B 10 mV to 10 Vp p 20 mV to 20 Vp p into open circuit load AFG3101 AFG3102 20 mV to 10 Vp p 40 mV to 20 Vp p into open circuit load AFG3251 AFG3252 50 mV to 5 Vp p 100 mV to 10 Vp p into open circuit load v Accuracy page 4 21 AFG3011 x 296 of setting 2 mV amplitude lt 10 2 of setting 2 mV typical amplitude gt 10 Vp p AFG3021B AFG3022B 1 of setting 1 mV at 1 kHz sine waveform amplitude gt 10 mV 0 V offset AFG3101 AFG3102 AFG3251 AFG3252 Resolution 0 1 Tian 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 Isolation 42 maximum to earth 1 AFG3251 AFG3252 frequency range gt 200 MHz to 240 MHz 50 mV p p to 4 Vp p into 50 100 mV to 8 Vp p into open circuit load 2 dBm is used only for sine waveform V is not available for Arb and Noise waveforms 14 AFG3000 Series Arbitrary Function Generators Service Manual Specifications Table 1 7 DC offset Characteristics Description PVreference page Range AFG3011 10 Vy ac dc into 50 Q AFG3021B AFG3022B 5 Vp
42. 0 kHz Deviation range 0 096 to 50 096 of pulse period Sweep Type Linear or Logarithmic Start stop frequency AFG3011 1 2 except Arb 1 mHz to 10 MHz AFG3021B AFG3022B 1 wHz AFG3101 AFG3102 except Arb 1 mHz to 25 MHz AFG3251 AFG3252 1 uHz except Arb 1 mHz to 100 MHz 1 Hz except Arb 1 mHz to 240 MHz Sweep hold return time Range 1 ms to 300 s sweep time 0 ms to 300 s hold return time Resolution 1 ms or 4 digits Total sweep time accuracy typical lt 0 4 1 Themaximum waveform length for Arb is 4 096 Waveform data points over 4 096 are ignored 2 Themaximum waveform length for Arb is 2 048 Waveform data points over 2 048 are ignored 3 Pulse DC and Noise waveforms are not available Start and stop frequencies depend on the waveform shape 4 Total sweep time Sweep time Hold time Return time lt 300 s 1 10 AFG3000 Series Arbitrary Function Generators Service Manual Specifications Inputs Outputs Table 1 11 Front panel Characteristics Description Trigger output Level Positive TTL level pulse into 1 Impedance 50 Jitter rms typical AFG3021B AFG3022B 500 ps AFG3011 AFG3101 AFG3102 200 ps AFG3251 AFG3252 100 ps Trigger input Level TTL compatible Pulse width 100 ns minimum Impedance 10 KQ Slope Positive negative selectable Trigger delay 0 0 ns to 85 000 s Resolution 100 ps or 5 digits
43. 02 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 Qty Name amp description 3 a A WASHER SPRING 0 610 OD X 0 490 ID X 0 007 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 CIRCUIT BD ASSY A82 REAR BNC INSULATOR 389378400 WIRED GASKET ELEC CONDUCTIVE URETHANE FOAM STRIP 5MM W X 0 5 MM T X 95 MM L W ADHESIVE TAPE GASKET ELEC CONDUCTIVE URETHANE FOAM STRIP 5MM W X 0 5 MM T X 10 MM L W ADHESIVE TAPE GASKET ELEC CONDUCTIVE URETHANE FOAM 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 CIRCUIT BD ASSY A80 BNC PELTOLA ADAPTER 389378200 WIRED CIRCUIT BD ASSY A80 BNC PELTOLA ADAPTER 389378200 WIRED CA ASSY SP PELTOLA 5 5 L SAFETY CONTROLLED CORE EM FERRITE EMI AFG310 CA ASSY SP PELTOLA 3 55 L SAFETY CONTROLLED CIRCUIT BD ASSY A72 CPU MAIN 389358400 WIRED ADDING HEATSINK ASSY SCREW MACHINE 6 32 X 0 188 PNH STL ZINC PL PHILLIPS MOUNT CLIP WIRE ROUTING CLIPNYLON 6 6 ADHESIVE BACKING NATURAL COLOR EMI SUPPRESSION FERRITE ROUND CABLE 50 OHM AT 10
44. 03 1 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 1 x3dB attenuator calibration failure A1x A3x A4x A51 A61 1202 CH2 x3dB attenuator calibration failure A12 A32 A42 A51 A61 1203 1 x6dB attenuator calibration failure A1x A3x A4x A51 A61 1204 2 x6dB attenuator calibration failure 12 32 42 51 61 1205 1 x10dB attenuator calibration failure A1x A3x A4x A51 A61 1206 CH2 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 1 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 2 Filter calibration failure A12 A32 A42 A51 A61 1213 1 x20dB 3 attenuator calibration failure A43 1301 CH1 Sine Flatness calibration failure A1x A3x A4x A51 A61 1302 CH2 Sine Flatness calibration failure 12 32 42 51 61 1401 1 ASIC TINT calibration failure A1x A3x A4x A51 A61 1402 CH2 ASIC TINT calibration failure 12 32 42 51 61 1403 CH1 ASIC SGEN calibration failure A1x A3x A4x A51 A61 1404 CH2 ASIC SGEN calibration failure 12 32 42 51
45. 100MHZ 100 OHM AT 100 500MHZ SNAP ON 0 39 ID X 1 3 LEN X 0 83 OD Replaceable Parts List 10 includes 31 Figure 8 2 Rear modules AFG3000 Series Arbitrary Function Generators Service Manual 8 10
46. 14 bits 14 bits Amplitude 20 Vp p 10 Vp p 10 Vp p 5 Vp p Display Color Mono Color Color Color chrome Interface USB LAN GPIB USB LAN GPIB USB LAN GPIB W Three functions integrated into one generator B 10 MHz to 240 MHz Function Generator B 5 MHz 120 MHz Pulse Generator m 14 bits Arbitrary Waveform Generator Ground isolation Synchronous operation USB flash drive interface AFG3000 Series Arbitrary Function Generators Service Manual 2 1 Operating Basics ArbExpress Software Context sensitive Help system Installation Use the following information to safely install your instrument Operating Requirements Environmental 329 6 mm 12 98 in 1 Tektronix AFG 3102 Zu 2 CS 156 3 mm 6 16 in fe 3 9 3 oO oO oO Figure 2 1 Front size 1 Place the instrument on a cart or bench observing clearance requirements W Sides 50 mm 2 in Rear 50 mm 2 in 2 Before operating ensure that the ambient temperature is between 0 C 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
47. 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 29 300 MHz 600 MHz 20 kHz MHz dBc Sine 240 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc dBc 300 MHz 600 MHz 20 kHz MHz dBc AFG3000 Series Arbitrary Function Generators Service Manual 4 17 Performance Verification AFG3000 Series Performance Test Record Rise Fall Time AFG3011 CH1 Rise Time Amplitude 1 0 Vp 50 ns Fall Time Amplitude 1 0 V m 50 ns Rise Time Amplitude 10 0 50 ns Fall Time Amplitude 10 0 Vp 50 ns AFG302xB CH1 Rise Time Amplitude 1 0 Vp 18ns Fall Time Amplitude 1 0 V 18ns Rise Time Amplitude 10 0 18ns Fall Time Amplitude 10 0 V Err 18ns CH2 Rise Time Amplitude 1 0 Vp 18ns Fall Time Amplitude 1 0 V 18ns Rise Time Amplitude 10 0 18ns Fall Time Amplitude 10 0 V wre 18ns AFG310x CH1 Rise Time Amplitude 1 0 Vp 5ns Fall Time Amplitude 1 0 V 5ns Rise Time Amplitude 10 0 5ns Fall Time Amplitude 10 0 V 5ns CH2 Rise Time Amplitude 1 0 Vp 5ns Fall Time Amplitude 1 0 V 5ns Rise Time Amplitude 10 0 5ns Fall Time Amplitude 10 0 V 5ns 4 18 AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification AFG3000 Series Performance Test Record
48. 3 Flatness adjustment EEE Power head 50 Q BNC coaxial cable 2 Setup the arbitrary function generator using the following steps Select menu Setting Operation Amplitude Units Vpp TopMenu Amplitude Level Menu more 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 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 AFG3000 Series Arbitrary Function Generators Service Manual Adjustment Procedures 5 Pushthe CH1 Flatness Next Frequency button The setting of next frequency of the arbitrary function generator becomes 5 MHz 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 Repeatsteps 5 through 7 until the setting of the arbitrary function generator is 10 MHz AFG3011 25 MHz AFG302x 100 MH
49. 61 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 Troubleshooting Table 6 4 Error codes cont Error code Description Related module Diagnostics 2100 Calibration data not found 72 2101 Calibration data checksum 72 2102 Calibration data invalid 72 2201 ASIC1 memory failure A1x A3x A4x 2202 ASIC2 memory failure A12 A32 A42 2203 ASIC1 Overheat A1x A3x A4x 2204 ASIC2 Overheat 12 32 42 Output Diagnostics 2301 CH1 Internal offset failure A1x A3x A4x 2302 2 Internal offset failure A12 A32 A42 2303 CH1 Output offset failure A1x A3x A4x A51 A61 2304 Output offset failure A12 A32 A42 A51 A61 2305 1 Output gain failure A1x A3x A4x A51 A61 2306 CH2 Output gain failure A12 A32 A42 A51 A61 2401 1 x3dB attenuator failure A1x A3x A4x 2402 CH2 x3dB attenuator failure 12 32 42 2403 1 x6dB attenuator failure A1x A3x A4x 2404 x6dB attenuator failure 12 32 42 2405 1 x10dB attenuator failure A1x A3x A4x 2406 CH2 x10dB attenuator failure 12 32 42 2407 1 x20dB 1 attenuator failure 1 4 2408 CH2 x20dB 1 attenuator failure A12 A32 A42 2409 1 x20dB 2 attenuator failure 1 4 2410 2 x20dB 2 attenuator failu
50. AFG3000 Series Arbitrary Function Generators Service Manual IDIRIN Tektronix 071 1640 05 7 Service Manual Tektronix AFG3000 Series Arbitrary Function Generators 071 1640 05 Warning The servicing instructions are for use by qualified personnel only To avoid personal injury do not perform any servicing unless you are qualified to do so Refer to all safety summaries prior to performing service www tektronix com Copyright Tektronix rights reserved Licensed software products are owned by Tektronix or its subsidiaries or suppliers and are protected by national copyright laws and international treaty provisions Tektronix products are covered by U S and foreign patents issued and pending Information in this publication supersedes 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 P O Box 500 Beaverton OR 97077 USA For product information sales service and technical support W North America call 1 800 833 9200 W 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 and workmanship for a period of three 3 years from the date of original purchase from an authorized Tektronix distributor If the product proves de
51. AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3011 AFG3022B AFG3101 AFG3251 AFG3102 AFG3252 Serial discontd Qty Serial effective 13 Name amp description Rear modules SCREW MACHINE 6 32 X 0 250 PNH STL ZNPL T 15 TORX DR LEAD ELECTRICAL 18 AWG 4 0 L 5 4 SAFETY CONTROLLED WASHER LOCK 8 INTL 0 02 STL ZN PL SUBPANEL REAR 0 039 EG STEEL CA ASSY SPELEC 5 28AWG W CONN 10CM L W87 IRREGULAR CROSS WIRING INVERTER BOARD DC TO AC INVERTER CONNECTOR TYPE DIMMING 4W 1BULB ASSY SPELEC 2 28 AWG 10 CM LW HOLDER 173977 3 amp AMP 173977 2 FAN DC TUBEAXIAL 12V 2 08W 2950RPM 39 6CFM 32 0DBA 80MM X 80MM X 25 5MM W O LEAD SAFETY CONTROLLED CA ASSY FAN FAN DC TUBEAXIAL 12V 2 08W 2950RPM 39 6CFM 32 0DBA 80MM X 80MM X 25 5MM W O LEAD FBA08A12H SAFETY CONTROLLED WITH ATTACHED CABLE SPELEC 2 28 AWG 10 CM L W HOLDER 119 7116 00 WITH 174 5152 00 POWER SUPPLY AC DC 150 W MAX IN 87 264 VAC 47 63 HZ 100 127 VAC 360 440 HZ IN 4 3V 2 3A 7 5V 3 2A 18V 0 2A 18V 2A OUT SAFETY CONTROLLED INSULATOR PROTECTION COVER POWER SUPPLY 0 5 MM THK CLEAR POLYCARBONATE UL94 V1 SAFETY CONTROLLED FILTER RFI 3 250 0 5 0 15 SAFETY CONTROLLED CA ASSY SPELEC 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 2151 GPI
52. AN Replaceable Parts List Replaceable parts list refer to Figure 8 1 on page 8 7 Fig amp Tektronix Serial Serial index part number Model effective discontd Qty Name amp description 40 335 1811 00 AFG3021B 1 MARKER IDENT LABEL MKD AFG3021B 0 010 PC FILM LEXAN W ADHESIVE BACK SAFETY CONTROLLED 335 1812 00 AFG3022B 1 MARKER IDENT LABEL MKD AFG3022B 0 010 PC FILM LEXAN W ADHESIVE BACK SAFETY CONTROLLED 335 1280 00 AFG3101 1 MARKER IDENT LABEL MKD AFG3101 0 010 PC FILM LEXAN W ADHESIVE BACK SAFETY CONTROLLED 335 1168 00 AFG3102 1 MARKER IDENT LABEL MKD AFG3102 0 010 PC FILM LEXAN W ADHESIVE BACK SAFETY CONTROLLED 335 1281 00 AFG3251 1 MARKER IDENT LABEL AFG3251 0 010 PC FILM LEXAN W ADHESIVE BACK SAFETY CONTROLLED 335 1167 00 AFG3252 1 MARKER IDENT LABEL MKD AFG3252 0 010 PC FILM LEXAN W ADHESIVE BACK SAFETY CONTROLLED 335 1849 00 AFG3011 1 MARKER IDENT LABEL MKD AFG3011 0 010 PC FILM LEXAN W ADHESIVE BACK SAFETY CONTROLLED 41 174 5150 00 AFG3021B 1 ASSY SP DATA MONO 7 0 L 174 4673 00 AFG3022B AFG3101 AFG3102 1 CA ASSY SP DATA COLOR 7 0L AFG3251 AFG3252 AFG301 1 8 6 AFG3000 Series Arbitrary Function Generators Service Manual Replaceable Parts List 9 includes 20 21 and 22 See Figure 8 2 on page 8 10 Figure 8 1 Exploded diagram AFG3000 Series Arbitrary Function Generators Service Manual Replace
53. B BLACK OXIDE BULK PACK WASHER LOCK 10 SPLIT 0 047 THK SI BRZ NP EMI GASKET GROUNDING 0 320 L X 0 365 W 2 CONTACTS X 0 110 DEEPELECTROLESS 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 AFG3000 Series Arbitrary Function Generators Service Manual Replaceable Parts List Replaceable parts list refer to Figure 8 2 on page 8 10 Fig amp index 4 18 20 21 22 23 24 25 26 27 28 29 30 31 AFG3000 Series Arbitrary Function Generators Service Manual Tektronix part number 210 1544 00 210 1544 00 210 1544 00 671 6071 XX 348 1840 00 348 1841 00 348 1842 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 5815 XX 211 1234 00 344 0629 00 119 5489 00 Serial discont d Serial 8 Model effective AFG3021B AFG3011 AFG3022B AFG3101 AFG3251 AFG3102 AFG3252 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3251 AFG3252 AFG3251 AFG3252 AFG3251 AFG3252 AFG3021B AFG3011 AFG3022B AFG3101 AFG3251 AFG3102 AFG3252 AFG3022B AFG3101 AFG3251 AFG3102 AFG3252 AFG3101 AFG3102 AFG3251 AFG3252 AFG3101 AFG3102 AFG3251 AFG3252 AFG3022B AFG3102 AFG3252 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AFG3101 AFG31
54. 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 AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification AFG3000 Series Performance Test Record DC Offset AFG3011 2 1 50 Q Measurement CH1 DC Offset 5 000 Vdc 5 000 x CF 0 110 Vdc 45 000 x CF 0 110 Vdc 0 000 Vdc 0 010 Vdc 0 010 Vdc 5 000 Vdc 5 000 x CF 0 110 Vdc 75 000 x CF 0 110 AFG302xB AFG310x 2 1 50 Q Measurement CH1 DC Offset 45 000 Vdc 45 000 x CF 0 055 Vdc 45 000 x CF 0 055 Vdc 0 000 Vdc 0 005 Vdc 40 005 Vdc 5 000 Vdc 75 000 x CF 0 055 Vdc 5 000 x CF 0 055 Vdc CH2 DC Offset 45 000 Vdc 45 000 x CF 0 055 45 000 x CF 0 055 Vdc 0 000 Vdc 0 005 Vdc 40 005 Vdc 5 000 Vdc 75 000 x CF 0 055 Vdc 5 000 x CF 0 055 Vdc AFG325x CF 2 1 50 CH1 DC Offset 42 500 Vdc 42 500 x CF 0 030 Vdc 42 500 x CF 0 030 Vdc 0 000 Vdc 0
55. ESIVE TAPE GASKET ELEC CONDUCTIVE URETHANE FOAM 12 7 MM W X 3 2MM T X 325 MM L W ADHESIVE TAPE ASSY SP PELTOLA 4 35 L SAFETY CONTROLLED ASSY SP PELTOLA 4 35 L SAFETY CONTROLLED ASSY SP PELTOLA 6 7 L SAFETY CONTROLLED CA ASSY SP PELTOLA 6 7 L SAFETY CONTROLLED SHIELD SUBASSEMBLY A51 SHIELD SUBASSEMBLY A51 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 1 15 ENCODER DIGITAL 24 CPR 24 DETENTS INCREMENTAL QUADRATURE OUTPUT BAND BAND PA AFG3000 Series Arbitrary Function Generators Service Manual Replaceable Parts List Replaceable parts list refer to Figure 8 1 on page 8 7 AFG3000 Series Arbitrary Function Generators Service Manual Fig amp Tektronix Serial Serial index number Model effective discontd Qty Name amp description 31 276 0324 00 AFG3101 AFG3102 1 CORE EM AFG310 32 174 4658 00 AFG3021B AFG3022B AFG3101 1 CA ASSY SP DISCRETE 26 AWG 5 5 L FEMALE 1 X 12 0 059 1 5 AFG3102 CTR DUAL ENDED FRONT PANEL 2 CHANNEL 174 5231 00 AFG3251 AFG3252 1 174 4658 00 W COPPER TAPE 33 671 5817 AFG3021B AFG3022B AFG3101 1 CIRCUIT BD ASSY A75 KEY BOARD 389 3586 00 WIRED AFG3102 AFG3251 AFG3252 AFG3011 34 260 2797 00 AFG3021B AFG3022B AFG3101 1 SWITCH KEYPAD ELASTOMERIC FRONT PANEL PUSHBUTTON AFG3102
56. FG302xB 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 0 030 Vdc 6 AFG3xx2 only Repeat steps 3 through 5 for the channel 2 output AFG3000 Series Arbitrary Function Generators Service Manual 4 25 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 ELE c SA OO O HOJO E CH1 Output Power head 50 Q BNC coaxial cable 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 Amplitude Level Menu more Units gt dBm Amplitude 4 0 dBm Amplitude High front Channel 1 Output On On front 3 Setthe frequency of the Power Meter to 100 kHz 4 Write the Power Meter reading of the 100 kHz
57. Figure 1 2 on page 1 14 1 12 AFG3000 Series Arbitrary Function Generators Service Manual Specifications 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 Table 1 15 Environmental Characteristics Description Temperature range Operating 0 C to 50 Non operating 30 C to 70 C Humidity Operating At or below 40 lt 8096 gt 40 C to 50 lt 60 Altitude Operating Up to 3 000 meters 10 000 feet AFG3000 Series Arbitrary Function Generators Service Manual 1 13 Specifications 156 3 6 16 t amp GO GOAZ d 240 f i i 4 0 95 6 5 39 5 0 26 1 56 erek 1 08 br 1185 BNC connectors BNC connectors All dimensions
58. G3101 1 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3101 AFG3251 3 AFG3011 AFG3022B AFG3102 AFG3252 4 AFG3021B 1 AFG3022B 1 AFG3101 1 AFG3102 1 AFG3251 1 AFG3252 1 AFG3011 1 AFG3021B AFG3022B AFG3101 1 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AFG3011 1 AFG3101 AFG3102 AFG3251 1 AFG3252 AFG3021B AFG3022B AFG3101 1 AFG3102 AFG3251 AFG3252 AFG3011 Name amp description FRAME ASSEMBLY DISPLAY MONO FRAME ASSEMBLY DISPLAY COLOR GASKET SHLD ELEK PU FORM 60MM L W 3M 467MP BACKSIDE TOURBILLON LCD CABLE EMI GASKET GROUNDING 0 320 L 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 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 GE
59. Hz 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 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 91 cm 012 0482 00 8 BNCterminator 50 10 2W DC to 1GHz BNC Tektronix part number Signal termination 011 0049 02 9 Attenuator 50 x10 BNC Tektronix part number Signal attenuation 011 0059 03 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 Performance Verification Test Record 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 standard accessory document CD P N 063 3828 xx AFG3000 Series Performance Test Recor
60. Hz CH1 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 30 dBc CH2 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 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 lt 30 dBc 2 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 30 dBc AFG3000 Series Arbitrary Function Generators Service Manual 4 13 Performance Verification AFG3000 Series Performance Test Record Total Harmonic Distortion THD 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 Me Ao Mez reading reference A A4 dBc 0 Bo By B B C 10 8920 C 1 Co Ge C Ce Limit 0 2 THD Tre CH2 reading dBm 1 2 A4 A5 A6 7 reading reference An 1 dBc B1 0 B2 B3 B4 B5 B6 B7 Cp 10 B20 Ct 1 C2 C3 C4 5 6 C7 Limit 0 2 Lo THD 4 14 AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification AFG3000 Se
61. 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 0V 1 0 Vp 200 mV div 1 ns div lt 2 5ns Square 10 00 MHz 0 0 V 5 0 1 0 V div 1 ns div 2 5 ns 4 36 5 AFG3xx2 only Repeat steps 2 through 4 for the channel 2 output 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 the Specification section It can also be used to optimize the performance of the arbitrary function generator Generally these adjustments should be done every 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 AFG3011 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 72 CPU A43 72 CPU A11 A12 72 CPU A31 A32 A41 A51 A61 Output Generator Generator A42 Generato
62. NERATOR 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 CIRCUIT BD ASSY A43 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 Replaceable Parts List Replaceable parts list refer to Figure 8 1 on page 8 7 Fig amp index 15 20 21 22 23 24 25 26 27 28 29 30 Tektronix part number 650 4827 00 650 4828 00 335 1394 00 335 1828 00 335 1829 00 335 1283 00 335 1175 00 335 1932 00 348 1791 00 348 1703 00 348 1850 00 348 1849 00 348 1848 00 174 5154 00 174 5154 00 174 5153 00 174 5153 00 650 4806 01 650 4806 01 650 4807 02 650 4807 02 366 0840 00 348 1839 00 211 1143 00 260 2791 00 346 0299 00 Serial Serial Model effective AFG3021B AFG3022B AFG3011 AFG3101 AFG3102 AFG3251 AFG3252 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AFG3101 AFG3251 AFG3102 AFG3252 AFG3011 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3101 AFG3102 AFG3251 AFG3252 AFG3101 AFG3102 AFG3251 AFG3252 AFG3101
63. Refer to Setting the Serial Number on page 5 12 A82 BNC Insulator Board You will need a torque limiting Torx T 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 Add Input BNC connector and the EXT Modulation CH2 Input BNC connector using the procedures on page 6 20 2 Remove the nuts and wave washers of the EXT Modulation CHI Input the Ext Ref Input and the Ext Ref Output connectors using the procedures on page 6 20 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 AFG3000 Series Arbitrary Function Generators Service Manual 6 21 Removal and Installation Procedures Generator Board You will need a torque limiting Torx T 15 screwdriver Removal To remove the Generator board refer to Figure 6 18 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 18 Generator board removal Installation To install reverse this procedure 6 22 AFG3000 Series Arbitrary Function Generators Service Manual Removal and Installation Procedures A81 BNC Insulator Boar
64. Reference 0 30 Sine 4 0 dBm 25 00 MHz Reference 0 50 Sine 4 0 dBm 50 00 MHz Reference 0 50 Sine 4 0 dBm 100 00 MHz Reference 1 00 Sine 4 0 dBm 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 27 Performance Verification Harmonics Distortion Test This test verifies the harmonic distortion using a spectrum analyzer 1 Connectthe arbitrary function generator to the spectrum analyzer as shown in Figure 4 7 Spectrum analyzer WCA280A 1 1 AFG3000 series CH1 Output 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 Sine front Frequency 20 00 kHz AFG3011 AFG302xB Frequency Period front 1 000 MHz AFG310x 1 000 MHz AFG325x Amplitude Units Vpp TopMenu Amplitude Level Menu more Units Vpp Amplitude 1 00 Vpp Amplitude High front Channel 1 Output On On front 4 Set up the spect
65. Series software starts When the AFG3000 Series contains an unresolved error the test cannot be conducted normally Diagnostic Test from This procedure uses internal routines to verify that the instrument is operating Utility Menu correctly Equipment required None Prerequisites WI 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 and 50 1 Select the Diagnostics item the Utility menu Utility front panel gt more bezel gt Diagnostics Calibration gt Execute Diagnostics 2 Waituntil 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 30 4 Press any front panel button to exit from the diagnostics 6 28 AFG3000 Series Arbitrary Function Generators Service Manual Troubleshooting Calibration 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 C and 30 Do the following steps to run the inter
66. UTION Double High Voltage Earth Terminal Refer to Manual Insulated 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 15 present Disconnect Power To avoid electric shock disconnect the mains power by means of the power cord or if provided the power switch Use Care When Servicing With Power On Dangerous voltages or currents may exist in this product Disconnect power remove battery 1f 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 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 AFG3011 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3232 arbitrary function generators NOTE If your instrume
67. able Parts List Replaceable parts list refer to Figure 8 2 on page 8 10 Fig amp index 8 2 01 02 03 04 05 06 07 08 09 10 11 12 13 Tektronix part number 211 1198 00 196 3496 00 210 1539 00 386 7416 01 174 B836 00 119 7259 00 174 5152 00 119 7116 00 119 7406 00 119 7271 XX 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 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B
68. al 2nd 3rd 4th bth Limit reference AFG3011 Spectrum Analyzer reading Sine 20 kHz 20 kHz 40kHz 60 2 80 kHz 100 2 CH1 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 55 dBc Sine 100 kHz 100 kHz 200kHz 300kHz 400 2 500 kHz CH1 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 55 dBc Sine 1 MHz 1MHz 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 45 dBc Sine 10 MHz 10 MHz 20MHz 35 2 40 2 50MHz CH1 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 45 dBc AFG302xB Spectrum Analyzer reading Sine 20 kHz 20 kHz 40kHz 60 2 80 kHz 100 2 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 200kHz 300kHz 400kHz 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 Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 60 dBc Sine 1 MHz 1MHz 2 MHz 3 MHz 4 MHz 5 2 CH1 Harmonic Distortion dBc dBc dBc dBc
69. all of these procedures depending on what you want to accomplish m To quickly confirm that the AFG3000 Series Arbitrary Function Generators are operating properly complete the 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 Self Tests There are two types oftests in this section that provide a quick way to confirm basic functionality and proper adjustment Diagnostics m 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 Diagnostics 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
70. ard voce e A ete reel eez Eee XLI 6 13 Display Module crisser nenne ne nn e EE Rs 6 14 Output Board AFG310x 325 6 14 Separation of Rear Module and Main Chassis 6 15 didatela i Eat ee deia der oa gs 6 17 Ea 6 18 PoweriSupply jns Bee nn nn 6 19 A72 CPU Board ee sa RER Edi eR RE 6 20 A82 BNC Insulator 6 21 Generator Board nent due Xe eg 6 22 A81 BNC Insulator Board BNC Bracket 6 23 Troublesh otins 525 IER etapa ei ioa bab ek erka 6 25 AFG3000 Series Arbitrary Function Generators Service Manual Table of Contents Required Tools and Equipment 6 25 Troubleshooting Tree 6 25 Diagnostics st jodie tA wh deten baiti 6 28 Calibration ateta DR nn rduera 6 29 Error Codes coto ed oce de te eom io mae ets 6 30 Diagrams Diagrams 7 1 Replaceable Parts List Replaceable Parts List 8 1 Parts Ordering Information 8 1 Using the Re
71. ation Procedures Figure 6 9 Output board removal Installation To install reverse this procedure Separation of 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 T 15 screwdriver and a flat blade screwdriver for this procedure Removal To separate the rear module and main chassis refer to Figure 6 10 and Figure 6 11 and follow these steps 1 Disconnect the following cables 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 J370 from the ADD Input connector 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 AFG3000 Series Arbitrary Function Generators Service Manual 6 15 Removal and Installation Procedures Tj PR Figure 6 10 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 11 Pull out the rear module Installation To install reverse this procedure 6 16 AFG3000 Series Arbitrary Function Generators Service Manual Removal and Installation Procedures Inver
72. ble 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 Amplitude Level Menu more Units gt Vpp Amplitude 1 00 Vpp Amplitude High front Channel 1 Output On On front 3 Setthe center frequency of the spectrum analyzer to 10 MHz Other settings are shown in the following tables 4 Set the Ref Level of the spectrum analyzer to 8 dBm 5 Measure the maximum spurious level other than harmonic distortion of 1 V sine wave in each frequency 6 Setthe center frequency of the spectrum analyzer to 300 MHz Other settings are shown in the following tables 7 Measure the maximum spurious level other than harmonic distortion of 1 sine wave in each frequency 8 Verify that the spurious signal at each frequency is equal to or less than the limit specified in the following tables 4 32 AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification 9 AFG3xx2 only Repeat steps 2 through 8 for the channel 2 output AFG3011 Spectrum analyzer Measurement Frequency Center Span RBW Spurious Spurious Limit Frequency Frequency Max 100 00 kHz 10 MHz 20MHz 20kHz MHz dBc lt 60 dB 300MHz 600MHz 20kHz MHz dBc
73. bration factor CF from the reading value and record as follows CF Calibration Factor 2 1 50 Measurement Measurement reading of the DMM CF Examples 50 50 Q 1 0050 2 1 50 50 50 49 62 Q 0 9962 2 1 50 49 62 AFG3000 Series Arbitrary Function Generators Service Manual 4 23 Performance Verification 3 Connect the arbitrary function generator to the DMM as shown in Figure 4 5 Be sure to connect the 50 terminator to the arbitrary function generator Output connector side AFG3000 series CH Output BNC Dual banana adapter 50 Q BNC coaxial cable 50 Q terminator Figure 4 5 DC offset tests 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 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 AFG3011 Measurement Range Function Offset DC 5 000 Vdc Vdc 5 000 x CF x 0 110 Vdc DC 0 000 Vdc Vdc 0 010 Vdc DC 5 000 Vdc Vdc 5 000 x CF 0 110 Vdc 4 24 AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification A
74. cations Description Continuous Modulation Sweep and Burst Burst count 1 to 1 000 000 cycles or Infinite Internal trigger rate 1 000 us to 500 0 s AFG3000 Series Arbitrary Function Generators Service Manual 1 1 Specifications Table 1 2 Waveforms Characteristics Description Standard Sine Square Pulse Ramp More Sin x x Noise DC Gaussian Lorentz Exponential Rise Exponential Decay and Haversine Arbitrary waveform Waveform length 2 to 131 072 Sampling rate AFG3021B AFG3022B 250 MS s AFG3011 AFG3101 AFG3102 Waveform length lt 16384 1 GS s 16384 waveform length 250 MS s AFG3251 AFG3252 Waveform length lt 16384 2 GS s 16384 lt waveform length 250 MS s Resolution 14 bits Number of non volatile waveform 4 memories Table 1 3 Frequency and period Characteristics Description PV reference page Frequency range Sine AFG3011 1 Hz to 10 MHz AFG3021B AFG3022B 1 uHz to 25 MHz AFG3101 AFG3102 1 uHz to 100 MHz AFG3251 AFG3252 1 uHz to 240 MHz Square AFG3011 1 Hz to 5 MHz AFG3021B AFG3022B 1 uHz to 12 5 MHz AFG3101 AFG3102 1 uHz to 50 MHz AFG3251 AFG3252 1 uHz to 120 MHz Pulse AFG3011 1 mHz to 5 MHz AFG3021B AFG3022B 1 mHz to 12 5 MHz AFG3101 AFG3102 1 mHz to 50 MHz AFG3251 AFG3252 1 mHz to 120 MHz 1 2 AFG3000 Series Arbitrary Function Generators Service Manual Specifications Table 1 3 Frequency a
75. 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 subsection After isolating a faulty module replace it with a fully tested module obtained from the factory The Replaceable Parts List section contains part number and ordering information for all replaceable modules AFG3000 Series Arbitrary Function Generators Service Manual xiii Introduction Tektronix Service Offerings Tektronix provides service to cover repair under warranty as well as other services that may provide a cost effective answer to your service needs 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 Warranty Repair Service Tektronix warrants this product for three years from date of purchase The warranty appears at the front of this manual Tektronix technicians provide warranty serv
76. ctrum analyzer 1 Connectthe arbitrary function generator to the spectrum analyzer as shown in Figure 4 8 Spectrum analyzer WCA280A 1 3 AFG3000 series C38 08555 COO zz 1 0 C 10162063 000000 25 ERR j 1 Output 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 Set the Ref Level of the spectrum analyzer to 8 dBm 5 When the THD cannot be measured directly it is obtained by using the following calculation ES THD 1222 4 30 AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification 6 Measure and record each level A to A7 to the seventh harmonics of the 20 kHz sine wave 7 Calculate the each B to B7 C to C7 value and the THD AFG3xxx Measurem
77. cy Counter is between 0 999999 MHz and 1 000001 MHz 5 Setup 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 MHz and 1 000001 MHz 4 20 AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification Amplitude Test This test verifies the amplitude accuracy of the arbitrary function generator output amplitudes are derived from a combination of attenuators and 3 dB variable gain Some amplitude points are checked This test uses a 50 Q terminator It is necessary to know the accuracy of the 50 Q terminator in advance of this amplitude test This accuracy is used as a calibration factor 1 Connect the 50 Q terminator to the DMM as shown in Figure 4 2 and measure the register value BNC Dual banana adapter 50 terminator Figure 4 2 50 terminator accuracy 2 Calculate the 50 calibration factor CF from the reading value and record as follows CF Calibration Factor 2 1 50 Measurement Measurement reading of the DMM CF Examples 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 3 Be sure to connect the 50 Q terminator to the arbitrary function generator Output connector side AFG3000 s
78. d Instrument Serial Number Certificate Number Temperature RH 96 Date of Calibration Technician AFG3000 Series Performance Test Record Minimum Test result Maximum Frequency Sine at 1 000000 MHz 0 999999 MHz 1 000001 MHz Pulse at 1 000000 MHz 0 999999 MHz 1 000001 MHz Amplitude AFG3011 CF 2 1 50 Measurement Q CH1Amplitude 30 0 mVrms at 1 00 kHz 30 0 x CF 1 307 mVrms 30 0 x CF 1 307 mVrms 300 0 mVrms at 1 00 kHz 300 0 x CF 6 71 mVrms 300 0x CF 6 71 mVrms 800 0 mVrms at 1 00 kHz 800 0 x CF 16 71 mVrms 800 0 x CF 16 71 mVrms 1 500 x CF 0 0307 Vrms 1 500 x CF 0 0307 1 500 Vrms at 1 00 kHz Vrms 2 000 Vrms at 1 00 kHz 2 000 x CF 0 0407 Vrms 2 000 x CF 0 0407 Vrms 2 500 Vrms at 1 00 kHz 2 500 x CF 0 0507 Vrms 2 500 x CF 0 0507 Vrms 3 500 Vrms at 1 00 kHz 3 500 x CF 0 0707 Vrms 3 500 x CF 0 0707 Vrms AFG3000 Series Arbitrary Function Generators Service Manual 4 5 Performance Verification AFG3000 Series Performance Test Record Amplitude AFG302xB 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
79. d BNC Bracket You will need a torque limiting Torx T 15 screwdriver a torque wrench a 16 mm 5 8 inch deep socket Removal To remove the A81 BNC Insulator and BNC bracket refer to Figure 6 19 and follow these steps 1 Remove the Generator board using the procedures on page 6 22 2 Usethe 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 19 A81 BNC Insulator board and BNC bracket removal Installation To install reverse this procedure AFG3000 Series Arbitrary Function Generators Service Manual 6 23 Removal and Installation Procedures 6 24 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 B Troubleshooting trees W 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 following to
80. 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 AFG3000 Series Arbitrary Function Generators Service Manual 4 11 Performance Verification AFG3000 Series Performance Test Record Harmonic Distortion Fundamental 2nd 3rd 4th 5th Limit reference Sine 25MHz 25 MHz 50 MHz 75 2 100 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 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 10 MHz 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 dBc dBc Nth reference lt 37 dBc Sine 25MHz 25 MHz 50MHz 75 2 100 MHz 125 MHz CH1 Harmonic Distortion
81. 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 2 Harmonic Distortion dBc dBc dBc dBc dBc reading reference 0 dBc dBc dBc dBc dBc Nth reference lt 37 dBc 4 12 AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification AFG3000 Series Performance Test Record Harmonic Distortion Fundamental 2nd 3rd 4th bth Limit reference AFG325x Spectrum Analyzer reading Sine 1 MHz 1MHz 2 MHz 3 2 4 MHz 5 2 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 2 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 reference lt 37 dBc Sine 100 MHz 100 MHz 200 MHz 300 MHz 400 MHz 500 M
82. deral Catalog handbook H6 1 for further item name identification Abbreviations Abbreviations conform to American National Standard ANSI Y 1 1 1972 8 2 AFG3000 Series Arbitrary Function Generators Service Manual Replaceable Parts List Replaceable parts list refer to Figure 8 1 on page 8 7 Fig amp Tektronix index amp number 8 1 01 02 03 04 05 06 07 08 09 AFG3000 Series Arbitrary Function Generators Service Manual 650 4605 00 650 4349 01 348 1845 00 131 6363 00 441 2370 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 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 671 6374 XX 441 2371 00 202 0411 01 202 0435 01 367 0538 00 Serial Serial Model effective discontd Qty AFG3021B 1 AFG3022B AFG3101 AFG3102 1 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AFG3101 2 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AFG3101 1 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AFG3101 1 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B 40 AFG3101 AFG3251 42 AFG3102 AFG3252 44 AFG3021B AFG3101 AFG3251 3 AFG3011 AFG3022B AFG3102 AFG3252 4 AFG3021B AFG3101 AFG3251 3 AFG3011 AFG3022B AFG3102 AFG3252 4 AFG3021B AFG3022B AFG3101 1 AFG3102 AFG3251 AFG3252 AFG3011 AFG3021B AFG3022B AF
83. e Fe ex at dius bs 5 3 Clear CAL Data Menu een Lake 5 3 Reference Clock come yg ua engen 5 4 ass une RP en ERU AR hehe 5 5 Flatness Adjustment dans de attente ve 5 6 Spurious nisse ke erraze 5 8 Trigger Delay Adjustment 5 10 Setting the Serial Number iil us seen ein nen ee sente 5 12 Setting the MAC Address 5 12 Maintenance 5a seo ee AER SIRE RAS 6 1 Pr paration ir e eee EI IE 6 1 Preventing ESD 2 22 m ar ERU TUE VUES 6 1 Inspection and Cleaning aaa rraza girar arpa gg eea ng eer ao 6 2 Removal and Installation Procedures 6 7 Adjustment after Repairs 222 uu aan EET ER RR earra A 6 7 Lastof Modules esse tests BE 6 7 Summary of Procedures sem epe eye ENS E 6 8 Tools Required s i EK EZKE UAE ES ERI EE EUM UD PER ENS 6 8 Flip Feet derece eee Ee E 6 9 Eront Panel knob cone ly Priser 75 4 et 6 10 Rear dx xe n CU ng eaae uis Ge RARE eigene 6 10 TOP COVER Gn secte us eU AES a Oy E EN 6 12 Front Cases REN CR ROUND LAUNE ARR I e CER PCR ee de Rc 6 12 A75 Eront Panel Bo
84. ence 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 240 0 MHz Reference 2 00 dB dB Reference 2 00 dB AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification AFG3000 Series Performance Test Record Minimum Maximum AC Flatness CH2 AC Flatness 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 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 4 10 AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification AFG3000 Series Performance Test Record Harmonic Distortion Fundament
85. ent Function Frequency Fundamental 2nd 3rd 4th 5th 6th 7th reference sine 20 00 kHz 20 kHz 40 kHz 60 kHz 80 kHz 100 kHz 120 kHz 140 kHz reading dBm Ay A reading reference 0 Bo B4 B By An A dBc Cp 10 B20 C 1 Co C Ce C7 Limit 2 THD lt 0 2 THD 2 _ Sample reading 1 5 dBm 58 5dBm 58 5dBm 63 5dBm 58 5 dBm 63 5dBm 63 5 dBm reading reference 0 60 dBm 60 dBm 65 dBm 60 dBm 65 dBm 65 dBm 1 000 0 001 0 001 0 000562 0 001 0 000562 0 000562 Limit 2 dd 0 1987 lt 0 2 THD a 2 NOTE When all the harmonic components are 62dBm or less the calculation of THD can be skipped because it is THD lt 0 2 8 Verify that the THD is less than 0 2 9 AFG3xx2 only Repeat steps 2 through 8 for the channel 2 output AFG3000 Series Arbitrary Function Generators Service Manual 4 31 Performance Verification Spurious Test This test verifies the spurious using a spectrum analyzer 1 Connectthe arbitrary function generator to the spectrum analyzer as shown in Figure 4 9 Spectrum analyzer WCA280A AFG3000 series 2999909 O0 OOJO 0000 p 2 1 Output BNC Fe N Ma adapter 50 BNC coaxial ca
86. eries BNC Dual banana adapter CH1 Output 50 BNC coaxial cable 50 Q terminator Figure 4 3 Amplitude tests AFG3000 Series Arbitrary Function Generators Service Manual 4 21 Performance Verification 4 Setup 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 Amplitude Level Menu more The voltage unit should be Units V rms matched to that of DMM 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 AFG3011 Measurement Range Function Frequency Amplitude Sine 1 000kHz 30 0mVrms mVrms 30 0 x CF 1 307 mVrms Sine 1 000 kHz 300 0 mVrms mVrms 300 0 x CF 6 71 mVrms Sine 1 000 kHz 800 0 mVrms mVrms 800 0 CF 16 71 mVrms Sine 1 000 kHz 1 500 Vrms Vrms 1 500 x CF 0 0307 Vrms Sine 1 000 kHz 2 000 Vrms Vrms 2 000 x CF x 0 0407 Vrms Sine 1 000 kHz 2 500 Vrms Vrms 2 500 x CF x 0 0507 Vrms Sine 1 000 kHz 3 500 Vrms Vrms 3 500 x CF x 0 0707 Vrms AFG302xB and AFG310x Measurement Range Function Frequency Amp
87. erification 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 lt 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 47 300 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 29 300 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 2 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 47 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 10 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 47 300 MHz 600 MHz 20 kHz MHz dBc Sine 25 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc lt 47 300 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
88. fective 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 1f 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 other than Tektronix representatives to install repa
89. h 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 3 Usea Phillips head screwdriver to remove the chassis ground screw 4 Liftthe 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 ground screw 6 10 AFG3000 Series Arbitrary Function Generators Service Manual Removal and Installation Procedures Gasket Rear case NOTE If your instrument is an AWG310x or AFG325x urethane foam gaskets must be installed in the case Follow the steps below 1 Remove the protective backing from the adhesive urethane foam gaskets Tektronix part numbers 348 1848 00 x 2 348 1849 00 x 2 and 348 1850 00 x 1 2 Attach the gaskets firmly to the inside of the case as shown in Figure 6 4 making sure that the gaskets stick out 2 0 mm to 2 5 mm from the edge of the case to ensure good contact with chassis ground 348 1848 00 Figure 6 4 Pasting the urethane foam gaskets AFG3000 Series Arbitrary Function Generators Service Manual 6 11 Removal and Installation Procedures
90. ice at most Tektronix service locations Self Service 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 repair or adjustment service xiv AFG3000 Series Arbitrary Function Generators Service Manual Specifications Specifications These specifications apply to all AFG3000 Series Arbitrary Function Generators specifications are guaranteed unless labeled typical Typical specifications are provided for your convenience but are not guaranteed Specifications that are check marked with the v symbol are checked directly or indirectly in the Performance Verification section specifications apply to the arbitrary function generator unless noted otherwise These specifications are valid under the following conditions Performance Conditions Electrical Table 1 1 Operation mode Characteristics Run mode 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 Theinstrument must be operating at an ambient temperature between 0 and 50 C The instrument must have had a warm up period of at least 20 minutes B The instrument must be in an environment with temperature altitude and humidity within the operating limits described in these specifi
91. iod front TopMenu Output Menu Load Impedance gt 50 Amplitude 1 00 Vpp Amplitude High front Channel 1 Output On On front 3 Setthe DMM voltage unit to VAC effective voltage 4 Record the DMM voltage reading AFG Function Frequency DMM reading AFG3011 Sine 10 00000 kHz CH1 AFG310x Sine 10 00000 kHz CH1 CH2 AFG325x Sine 100 00000 kHz CH1 2 5 Setthe 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 AFG3000 Series Arbitrary Function Generators Service Manual Adjustment Procedures Flatness Adjustment 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 AFG3102 AFG3252 only Connect the AFG3000 Series CH2 Output to the DMM Repeat steps 2 through 7 for the channel 2 output Push the and the Save button to save the adjusted 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 Connectthe arbitrary function generator to the power meter with a power head as shown in Figure 5 3 AFG3000 series Power meter CH Output Figure 5
92. ion 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 you with basic instrument features AFG3000 Series Programmer 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 Information AFG3000 Series Built in Help 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 1s 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 Instruction steps are numbered unless there is only one step Throughout this manual any
93. ir 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 ace us R IE RIS ita ETAri xi Finding Other Information Manual Conventions 1 0 xii Iitroduction
94. isplay area mc Output status Freq Phase 0 0 Main display area Parameter listing or Graph Bezel menu 1 000 0 10000 0 Level meter View tab Figure 2 7 Screen interface Bezel Menu When you push a front panel button the instrument displays the 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
95. ist of Modules The Replaceable Parts List 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 is best achieved by following the procedures in the order given in Figure 6 1 Flip feet Rear case Top cover Front case Output board AFG310x and Keypad AFG325x Separation of Rear Aro Pronegana did and Main board chassis Y y Display module Rear module Main chassis bb 82 Generator board Insulator board Power supply A81 BNC Insulator board BNC bracket 72 CPU board Figure 6 1 Disassembly order Tools Required Use the following tools to remove and replace all modules Torque limiting screwdriver long shank 8 Ib in 0 85 N m range with Torx T 15 tip 6 8 AFG3000 Series Arbitrary Function Generators Service Manual Removal and Installation Procedures Flip Feet 16 mm 5 8 inch deep socket with wide center hole 7 mm 9 32 inch socket Torque wrench to 30 in Ib
96. kHz 80kHz 100 kHz 60 dBc 100 00 kHz 500 kHz 1 MHz 2 kHz 100 kHz 200 kHz 300kHz 400kHz 500 kHz lt 60 dBc 1 00MHz 5 00MHz 10MHz 20kHz 1 MHz 2 MHz 3 MHz 4 MHz 5 MHz lt 50 dBc 25 00 MHz 125 MHz 250 MHz 20kHz 25 MHz 50 MHz 75 MHz 100 MHz 125 MHz lt 40 dBc AFG310x Spectrum Analyzer Measurement Limit Frequency Center Span RBW Fundamental 2nd 3rd 4th 5th Nth Reference Frequency Reference 1 MHz 5 00 MHz 10MHz ZO kHz 1 MHz 2 MHz 3 MHz 4 MHz 5 MHz lt 50 dBc 5 MHz 10 2 20 MHz 20kHz 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 20kHz 25 MHz 50MHz 75MHz 100 MHz 125 MHz lt 37 dBc 100MHz 500MHz 1GHz 100 kHz 100 MHz 200 MHz 300 MHz 400 MHz 500 MHz lt 97 dBc AFG325x Spectrum Analyzer Measurement Limit Frequency Center Span RBW Fundamental 2nd 3rd 4th bth Nth Reference Frequency Reference 1 MHz 5 00MHz 10MHz 20kHz 1MHz 2MHz 3MHz 4MHz 5 MHz 50 dBc 5MHz 10 2 20MHz 20 kHz 5 MHz 10MHz 15MHz 20MHz 25 MHz lt 37 dBc 25 MHz 50 MHz 20 kHz 100MHz 500MHz 1GHz 100 kHz 100 MHz 200 MHz 300 MHz 400 MHz 500 MHz lt 30 dBc 240 MHz 625 MHz 1 25 GHz 100 kHz 240 MHz 480 MHz 720 MHz 960 MHz 1 20 GHz lt 30 dBc AFG3000 Series Arbitrary Function Generators Service Manual 4 29 Performance Verification Total Harmonic Distortion Test This test verifies the total harmonic distortion THD using a spe
97. l Internal modulating Sine Square Ramp Noise and Arb waveforms Internal modulating 2 mHz to 50 00 kHz frequency Depth 0 096 to 120 096 FM Frequency 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 Peak deviation AFG3011 DC to 5 MHz AFG3021B AFG3022B DC to 12 5 MHz AFG3101 AFG3102 DC to 50 MHz AFG3251 AFG3252 DC to 120 MHz AFG3000 Series Arbitrary Function Generators Service Manual 1 9 Specifications Table 1 10 Modulation cont Characteristics PM Phase Modulation Carrier waveforms Description 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 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 Number of keys 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 0
98. les 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 ofthe 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 good time to perform preventive maintenance is just before adjustment of 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 Maintenance Inspection and Cleaning pr
99. libration 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 between 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 The 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 32 Shortcut buttons Numeric keypad Trigger Input connector View button d Trigger Output connector USB connector 98 3 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 following illustration shows the rear panel connectors for the instrument Security slot Screw
100. litude Sine 1 000 2 30 0 mVrms mVrms 30 0 x CF 0 654 mVrms Sine 1 000 2 300 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 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 0 0354 Vrms 4 22 AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification AFG325x Measurement Range Function Frequency Amplitude Sine 1 000kHz 30 0mVrms mVrms 30 0 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 6 AFG3xx2 only Repeat steps 3 through 5 for the channel 2 output 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 Q terminator to the DMM as shown in Figure 4 4 and measure the register value BNC Dual banana adapter 50 Q terminator Figure 4 4 50 Q terminator accuracy 2 Calculate the 50 2 cali
101. 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 15 less than 1 ns AFG3000 Series Arbitrary Function Generators Service Manual 5 11 Adjustment Procedures Setting the Serial Number When you replace the A72 CPU board you must set the serial number Perform the following procedure to set the serial number 1 Enable the service mode Refer to page 5 3 2 Push the Utility gt more gt more buttons 3 Push Service Menu gt Factory Initialize gt Serial Number buttons 4 Enter the serial number with numeric keys and Function buttons NOTE Use the Function buttons to enter alphabetical characters The Sine to More button corresponds to A through F Setting the MAC Address 5 12 MAC Address has already been set and need not usually be set When a new MAC address setup is required perform the following procedure 1 Enable the service mode Refer to page 5 3 2 Push the U
102. move 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 8 1 on page 8 7 for an overview 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 8 for a list of tools needed to remove and install modules in the arbitrary function generator E Flip feet on page 6 9 begins a series of procedures that describe the removal and installation of modules m Ifyou 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 L
103. nal routines that confirm basic functionality and proper adjustment 1 Selectthe Diagnostics item in the Utility menu Utility front panel gt more bezel gt Diagnostics Calibration gt Execute Calibration 2 Waituntil 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 30 4 Press any front panel button to exit from the diagnostics NOTE Do not turn off the power while executing calibration If the power is turned off while calibration data stored in internal nonvolatile memory may be lost AFG3000 Series Arbitrary Function Generators Service Manual 6 29 Troubleshooting Error Codes 6 30 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 related 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 2 Internal offset calibration failure 12 32 42 51 61 11
104. nd period cont Characteristics Description PV reference page Ramp Sin x X Gaussian Lorentz Exponential Rise Exponential Decay Haversine AFG3011 1 uHz to 100 kHz AFG3021B AFG3022B 1 uHz to 250 kHz AFG3101 AFG3102 1 uHz to 1 MHz AFG3251 AFG3252 1 uHz to 2 4 MHz Arbitrary AFG3011 1 mHz to 5 MHz AFG3021B AFG3022B 1 mHz to 12 5 MHz AFG3101 AFG3102 1 mHz to 50 MHz AFG3251 AFG3252 1 mHz to 120 MHz Noise bandwidth 3 dB typical AFG3011 10 MHz AFG3021B AFG3022B 25 MHz AFG3101 AFG3102 100 MHz AFG3251 AFG3252 240 MHz Resolution 1 wHz or 12 digits v Accuracy stability 1 ppm 0 C to 50 C except Arb page 4 20 1 ppm 1 uHz 0 C to 50 Arb Accuracy aging 1 ppm year 1 Triggered Gated Burst mode AFG3011 1 uHz to 5 MHz AFG3021B AFG3022B 1 Hz to 12 5 MHz AFG3101 AFG3102 1 Hz to 50 MHz AFG3251 AFG3252 1 Hz to 120 MHz 2 Triggered Gated Burst mode AFG3011 1 mHz to 2 5 MHz AFG3021B AFG3022B 1 mHz to 6 25 MHz AFG3101 AFG3102 1 mHz to 25 MHz AFG3251 AFG3252 1 mHz to 60 MHz AFG3000 Series Arbitrary Function Generators Service Manual 1 3 Specifications Table 1 4 Phase except DC Noise and Pulse Characteristics Description Range 180 00 to 180 00 1 Resolution 0 01 sine 0 1 other standard waveforms Table 1 5 Lead delay pulse Characteristics Description Range Continuous mode 0 ps to period Triggered Gated Burst mode 0 ps
105. nerators Service Manual 4 15 Performance Verification AFG3000 Series Performance Test Record 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 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 lt 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 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 2 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 lt 50 dBc 300 MHz 600 MHz 20 kHz MHz dBc Sine 25 00 MHz 10 MHz 20 MHz 20 kHz MHz dBc 5o 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 4 16 AFG3000 Series Arbitrary Function Generators Service Manual Performance V
106. nic Distortion page 4 30 Spurious Test Spurious page 4 32 Rise Fall Time Test Rise Fall Time page 4 35 Performance Conditions The tests in this section comprise an extensive valid confirmation of 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 and 50 The instrument must 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 3 0 196 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 M
107. nt is AFG3021 or AFG3022 refer to the service manual Tektronix part number 071 1640 02 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 procedures 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 Diagrams contains interconnection diagrams Replaceable Parts List includes a table of all replaceable modules their descriptions and their Tektronix part numbers AFG3000 Series Arbitrary Function Generators Service Manual xi 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 funct
108. ocedures A AFG3000 Series Arbitrary Function Generators Service Manual 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 Exterior Inspection Inspect the outside of the arbitrary function generator for damage wear and missing parts 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 Cracks scratches deformations damaged hardware or gaskets Repair or replace defective module Cabinet front panel and cover Repair or replace missing or defective knobs Front panel knobs Missing damaged or loose knobs Broken shells cracked insulation and deformed Repai
109. ols 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 20 and Figure 6 21 Detailed procedures follow the trees WARNING 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 25 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 Good voltage Replace the power supply Does the fan operate Replace the fan Are front panel keys active 16 the LCD display Replace the Key board Check oscillation of the Inverter by bring the probe of the oscilloscope close to the Inverter 16 the LCD display no problem Do USB GPIB and LAN function normally Replace the CPU board Completed a platform check O Figure 6 20 Platform troubleshooting procedure 6 26 Replace the CPU board Does the Inverter operate Replace
110. or 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 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 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 AFG3021B and AFG3022B 1 Connect the arbitrary function generator to the DMM as shown in Figure 5 2 AFG3000 series Figure 5 2 LF adjustment EN CH1 Output 50 Q BNC coaxial cable 50 Q terminator BNC Dual banana adapter 2 Set up the arbitrary function generator using the following steps Select menu Function Setting Sine Operation Sine front Frequency Load Impedance 500 10 00000 kHz AFG3011 AFG310x 100 00000 kHz AFG325x Frequency Per
111. orporation 2 Ifthe 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 Interior Inspection 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 ofthe arbitrary function generator for inspection and cleaning refer to the Removal and Installation Procedures in this section 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
112. placeable Parts List 8 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 Table 1 8 Table 1 9 Table 1 10 Table 1 11 Table 1 12 Operation mode 1 1 Waveforms 1 2 Frequency and period 1 2 Phase except DC Noise and Pulse 1 4 Lead delay pulse 1 4 Amplitude a ar lass 1 4 WD CORES CC sos is ie xs ne een nee 1 5 Internal noise add 1 5 Output characteristics 1 6 Modulation 1 9 Front panel 1 11 E ERR 1 12 Table 1 13 System characteristics 1 12 Table1 14 1 13 Table 1 15 Environmental 1 13 Table 2 1 General 2 1 Table 3 1 Combination of circuit boards used in each model 3 1 Table 4 1 Performance test items
113. purious Limit Frequency Frequency Max 100 00kHz 10MHz 20MHz 20kHz MHz dBc 50 dB 300MHz 600MHz 20kHz MHz dBc lt 1 00 MHz 10MHz 20MHz 20kHz MHz dBc 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 00MHz 10MHz 20MHz 20kHz MHz 47 dBc 300 MHz 600 MHz 20 kHz MHz dBc 50 00 2 10MHz 20MHz 20kHz MHz dBc dB 300 MHz 600 MHz 20 kHz 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 20 kHz MHz dBc 29 dB 300 MHz 600 MHz 20 kHz MHz dBc lt 240 00 MHz 10 2 20MHz 20kHz MHz dBc 28 dBc 300 MHz 600 MHz 20 kHz MHz dBc 4 34 AFG3000 Series Arbitrary Function Generators Service Manual Performance 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 S 666 6 9 UJ 1 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 Square front Frequency 2 00 MHz
114. quired 91 cm 012 0482 00 8 BNCterminator 50 Q 1 Q 2 W DC to 1 GHz BNC Tektronix part number Signal termination 011 0049 02 9 Adapter Dual Banana BNC female to dual banana Tektronix part number Signal interconnection to a Plug 103 0090 00 DMM 10 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 be on AFG3000 Series The instrument must have been calibrated adjusted at an ambient temperature between 20 and 30 The instrument must have had a warm up period of at least 20 minutes Enable the Service Mode 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 i
115. r Reference Clock X X X X X X LF X X X X X Flatness X X X X X X X Spurious X X X Trigger Delay X X 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 0296 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 frequency 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 2 re
116. r or replace defective modules Clear or wash out Connectors contacts Dirt in connectors dirt Carrying handle bail cabinet Correct operation Repair or replace defective feet module Exterior Cleaning Procedure 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 damage to the surface of the arbitrary function generator do not use any abrasive or chemical cleaning agents 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 C
117. re A12 A32 A42 2411 CH1 Filter failure 51 61 2412 2 Filter failure A51 A61 2413 1 x20dB 3 attenuator failure A43 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 31 Troubleshooting 6 32 AFG3000 Series Arbitrary Function Generators Service Manual Diagrams Diagrams Figure 7 1 Figure 7 2 and Figure 7 3 show the AFG3000 Series module interconnections These diagrams show how the modules in the arbitrary function generator connect together J 190 Ext Trig In 7 Ext Mod 1850 Tri Ch11 rigger n J 198 Ext Ref 9 J 854 M3 Generator In CH1 J 832 J 150 os 1400 Output Ext Ref Q 1856 J 100 J 902 AT2 CPU GPIB J 600 USB 4510 LAN J 700 J 860 J 866 J862 J900 J 920 J 300 J 400 J404 SW S800 L 1 gt 1 1 1 ELSE TE E me EE a 1 1 1 LCD Inverter 1 Power supply ott A75Front 2 AEk al ie een Joh leria mer Bee 1 Figure 7 1 Interconnection for AFG3011 AFG3000 Series Arbitrary Function Generators Se
118. 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 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 B 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 ix Read Installation in Operating Basics 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
119. ries Performance Test Record Spurious AFG3011 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 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 AFG302xB Spectrum Analyzer Measurement Frequency Center Span RBW Spurious Frequency Spurious 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 lt 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 2 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 dBc 300 MHz 600 MHz 20 kHz MHz dBc AFG3000 Series Arbitrary Function Ge
120. rum analyzer according the frequency setup of the arbitrary function generator 5 Setthe Ref Level of the spectrum analyzer to 8 dBm 6 Read the signal level in the Fundamental frequency for each signal Use this level as a Reference value in step 4 7 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 28 AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification 8 AFG3xx2 only Repeat steps 2 through 7 for the channel 2 output AFG3011 Spectrum Analyzer Measurement Limit Frequency Center Span RBW Fundamental 2nd 3rd 4th bth Nth Reference Frequency Reference 20 00 kHz 100 kHz 200 kHz 500 Hz 20 kHz 40 kHz 60 kHz 80kHz 100 kHz lt 55 dBc 100 00 kHz 500 kHz 1 MHz 2 kHz 100 kHz 200 kHz 300kHz 400 kHz 500 kHz lt 55 dBc 1 00MHz 5 00MHz 10MHz 20 kHz 1 MHz 2 MHz 3 MHz 4 2 5 MHz 45 dBc 10 00 MHz 10 MHz 20MHz 20 kHz 10 MHz 20MHz 30MHz 40MHz 50 2 lt 45dBc 50MHz 100MHz 20kHz AFG302xB Spectrum Analyzer Measurement Limit Frequency Center Span RBW Fundamental 2nd 3rd 4th bth Nth Reference Frequency Reference 20 00 kHz 100 kHz 200 kHz 500 Hz 20 kHz 40 kHz 60
121. rvice Manual 7 1 Diagrams CH2 12 1800 2 i Output l l J 852 Ext Mod 0 EATA Ch2 In CH1 J190 i 11 12 v Ex 9 J 850 Trigger Mod J 198 9 Out Ext Ref J 854 1 57 J 832 J 150 480 Sk J 100 LT u J 902 USB J 502 J 600 A72 CPU GPIB USB J510 beg LAN J 700 J 860 J 866 J 862 J 900 J 920 J 300 J 400 J 404 SW S800 a RU T aaa ke sa dE ateek eli ede GE 4 I L 3 i e joe edes rem AC IN E Sa I 03100 1 LCD 1 LCD Inverter i Power Supply Unit FAN A75 Front Monochrome CANCEL MEILE i ann Panel Board 1 Display 101 Figure 7 2 Interconnection for AFG302xB T 2 AFG3000 Series Arbitrary Function Generators Service Manual Diagrams Ext Mod Ch2 In Ext Mod Ext Ref In Ext Ref Out ADD In USB GPIB LAN AC IN CH2 A32 M2 1780 2100 SEO 3170 J790 1 A i O O Filter amp Output Amplifier O O efe 1800 i Output J 300 1810 1852 HLG n
122. s 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 30 Press any front panel button to exit the diagnostics AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification Performance Tests Table 4 1 Performance test items NOTE Do not turn off the power while executing calibration If the power is turned off during calibration data stored in internal nonvolatile memory may be lost 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 4 in Specifications Titles Test items Reference page Frequency Period Test Internal clock output frequency accuracy page 4 20 Amplitude Test Amplitude accuracy page 4 21 DC Offset Test Amplitude accuracy page 4 23 AC Flatness Test AC Flatness page 4 26 Harmonic Distortion Test Harmonic Distortion page 4 28 THD Total Harmonic Distortion Test Total Harmo
123. s displayed in the third page of Utility menu Save 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 Clear CAL Data Menu The Clear CAL Data menu in the second page of Manual Calibration clears all the current adjustment parameters and sets them to 0 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 For any model only one frequency point of channel 1 is adjusted 1 Connectthe arbitrary function generator to the frequency counter as shown in Figure 5 1 AFG3000 series Frequency counter D 1 0 f D D Figure 5 1 Reference Clock adjustment CH1 Output Inputs 50 Q BNC coaxial cable 2 Push the Default front panel button and OK menu button to recall the arbitrary function generat
124. 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 AFG3011 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 0 dBm 10 00 MHz Reference 0 30 4 26 AFG3000 Series Arbitrary Function Generators Service Manual Performance Verification AFG302xB 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 0 dBm 15 00 MHz Reference 0 30 Sine 4 0 dBm 25 00 MHz Reference 0 50 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 4048 5 00 MHz Reference 0 30 Sine 4 0 dBm 25 00 MHz Reference 0 50 Sine 4 0 dBm 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
125. sons 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 precautions on page 6 2 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 AFG3000 Series Arbitrary Function Generators Service Manual 6 1 Maintenance Inspection and Cleaning General Care Minimize handling of static sensitive modules Transport and store static sensitive modules in their static protected containers or on a metal rail Label any package that contains static sensitive modules Discharge the static voltage from your body by wearing a grounded antistatic wrist strap while handling these modules 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 modu
126. ter You will need needle nose pliers and tweezers Removal To remove the Inverter refer to Figure 6 12 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 Inverter bracket tab Figure 6 12 Inverter removal Installation To install refer to Figure 6 13 and follow these steps 1 Connect the Inverter cable from the CPU board at J404 2 Alignthe Inverter board with the Inverter bracket Make sure that the two hooks on the Inverter bracket align with the two holes on the Inverter board 3 Usethe pliers to bend the two Inverter bracket tabs into place and secure the Inverter board Figure 6 13 Inverter installation AFG3000 Series Arbitrary Function Generators Service Manual 6 17 Removal and Installation Procedures Fan You will need needle nose pliers and tweezers Removal To remove the fan refer to Figure 6 14 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 14 Fan removal Installation To install the fan follow these steps 1 Connect the fan cable to the CPU board at J920 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
127. the LCD module Replace the Inverter AFG3000 Series Arbitrary Function Generators Service Manual Troubleshooting O Generator troubleshoot start Execute the Utility gt Diagnostics Is it an error code related to CPU Diagnostics OK Replace the Generator board Ye Execute the Utility gt Calibration y Replace the CPU board es AFG302xB es Ye Remove the Output Amplifier No board Calibration OK 16 the signal OK No Replace the Amplifier board Check the signal of the Pre Amplifier Yes Yes Replace the Generator board Replace the Generator board Does the Trigger Input Output function Replace the Generator board Yes Do the Ext Modulation Input Ext Ref Input and Ext Ref Output function Yes No No No Replace the Generator board No Does the Add Input function Replace the Amplifier board Yes Completed a Generator check Figure 6 21 Generator troubleshooting procedure AFG3000 Series Arbitrary Function Generators Service Manual 6 27 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
128. tility gt more gt more buttons 3 Push the Service Menu gt Factory Initialize gt MAC Address buttons 4 Enter the MAC address with numeric keys and Function buttons NOTE Use the Function buttons to enter alphabetical characters The Sine 10 More button corresponds to A through F Use the key to enter the hyphen 5 Push the OK button 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 W Preparation Tells you how to get ready to do arbitrary function generator maintenance Preventing ESD Provides general information on 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 W Removal and Installation Procedures Procedures for the removal of defective modules and replacement of new or repaired modules W Troubleshooting 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 per
129. uency 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 Performance Verification AFG3000 Series Performance Test Record AC Flatness AFG310x CH1 AC Flatness Frequency 100 00 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 2 AC Flatness 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 AFG325x CH1 AC Flatness Frequency 100 00 dB Reference Ampl 4 0 dBm Frequency 1 00 MHz Refer
130. z AFG310x or 240 MHz AFG325x The frequency of the output signal of the arbitrary function generator increases in 5 MHz step 1 MHz step for the AWG3011 every time you push the CH1 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 AFG3011 AFG3021B and AFG3022B 1 Connect the arbitrary function generator to the spectrum analyzer as shown in Figure 5 4 AFG3000 series 35 CH1 Output Figure 5 4 Spurious adjustment Spectrum analyzer WCA280A 9 8 adapter 50 Q BNC coaxial cable 2 Setup the arbitrary function generator using the following steps
131. z lt frq x 10 MHz 50 dBc AFG3021B AFG3022B 10 Hz frg 1 MHz lt 60 dBc 1 MHz lt frq lt 25 MHz 50 dBc AFG3101 AFG3102 10 Hz frg 1 MHz lt 60 dBc 1 MHz x frq 25 MHz 50 dBc 25 MHz lt frq lt 100 MHz 50 dBc 6 dBc oct AFG3251 AFG3252 10 Hz lt frq lt 1 MHz lt 50 dBc 1 MHz lt frq 25 MHz 47 dBc 25 MHz lt frq lt 240 MHz 47 dBc 6 dBc oct Phase noise typical at 1 Vp p amplitude AFG3011 10 MHz lt 110 dBc Hz at 10 kHz offset AFG3021B AFG3022B 20 MHz lt 110 dBc Hz at 10 kHz offset AFG3101 AFG3102 AFG3101 AFG3102 Residual clock noise typical AFG3021B AFG3022B 63 dBm AFG3011 AFG3101 AFG3102 57 dBm AFG3251 AFG3252 Square wave page 4 35 Rise time fall time AFG3011 lt 50 ns AFG3021B AFG3022B lt 18 ns AFG3101 AFG3102 5ns AFG3251 AFG3252 lt 2 5 ns Jitter rms typical AFG3021B AFG3022B 500 ps AFG3011 AFG3101 AFG3102 200 ps AFG3251 AFG3252 100 ps AFG3000 Series Arbitrary Function Generators Service Manual 1 7 Specifications Table 1 9 Output characteristics cont Characteristics Description PVreference page Pulse Pulse width AFG3011 80 ns to 999 99 s AFG3021B AFG3022B 30 ns to 999 99 5 AFG3101 AFG3102 8 ns to 999 99 s AFG3251 AFG3252 4 ns to 999 99 s Resolution 10 ps or 5 digits Pulse duty 0 001 to 99 999 Leading edge trailing edge transition time AFG3011 50 ns to 0 625
132. zer screen 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 the AFG3011 AFG3021B 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 cables 2 Push the Default front panel button and OK menu button to recall the arbitrary function generator default setup 3 Setup the arbitrary function generator using the following steps Select menu Setting Operation Function CH1 Pulse Pulse front Leading CH1 AFG3022B 18 ns Pulse Parameter Menu menu 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 AFG3022B 18 ns Pulse Parameter Menu menu Leading AFG3102 5 ns Edge AFG3252 2 5 ns

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