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AFG310 and AFG320 Service Manual

1. 9 6 Figure 2 1 Cooling for rackmounted instrument s AFG310 amp AFG320 Service Manual Installation Supplying Operating Power ZN A Operating Voltage NOTE Read all information and heed all warnings in this subsection before connecting the AFG310 and AFG320 Arbitrary Function Generators to a power source WARNING AC POWER SOURCE AND CONNECTION The AFG310 and AFG320 Arbitrary Function Generators operate from a single phase power source They have a three wire power cord and two pole three terminal grounding type plug The voltage to ground earth from either pole of the power source must not exceed the maximum rated operating voltage 250 volts Before making connection to the power source be sure the AFG310 and AFG320 Arbitrary Function Generators have a suitable two pole three terminal grounding type plug GROUNDING This instrument is safety Class 1 equipment IEC designation All accessible conductive parts are directly connected through the grounding conductor of the power cord to the grounded earthing contact of the power plug WARNING The power input plug must be inserted only in a mating receptacle with a grounding contact where earth ground has been verified by a qualified service person Do not defeat the grounding connection Any interruption of the grounding connection can create an electric shock hazard For electric shock protection
2. A40 POWER SUPPLY Figure 6 8 Connector location of A10 and A40 Board 6 14 AFG310 amp AFG320 Service Manual Options and Accessories Options This section describes the various options as well as the standard and optional accessories that are available for the AFG310 and AFG320 Arbitrary Function Generator Tektronix will ship the options shown in Table 7 1 Table 7 1 Options Universal European 220 V 50 Hz power cord power cord Fuse 5A T IEC 127 Fuse Cap Cable Retainer UK power cord 240 V 50 Hz power cord Fuse 5A T IEC 127 Fuse Cap Cable Retainer Australian power cord 240 V 50 Hz power cord Fuse 5A T IEC 127 Fuse Cap Cable Retainer North American power 240 V 60 Hz power cord cord Cable Retainer A5 Switzerland power cord 220 V 50 Hz power cord Fuse 5A T IEC 127 Fuse Cap Cable Retainer AFG310 amp AFG320 Service Manual 7 1 Options and Accessories Standard Accessories Optional Accessories 7 2 The waveform generator comes standard with the accessories listed in Table 7 2 Table 7 2 Standard accessories Tektronix part Accessory number AFG310 and AFG320 Arbitrary Function Generator User Manual 071 0175 50 U S Power Cord 125 V 6A 161 0230 01 You can also order the optional accessories listed in Table 7 3 Table 7 3 Optional accessories Tektronix part
3. 1 3 Waveforms 22 2222224 1 4 Erequelcy 1 4 Amplitude 5522 ER aide 1 4 Offset 2 DU PT PU ETE 1 5 s ORE 1 5 Mam Output 5 1 6 Modulation and Sweep 1 7 Auxiliary Output rh ng 1 7 S Auxiliary Input 2er er e 1 8 Isolati n dU Wang a e oe RE 1 8 Display 1 8 SAC Line Power 552705 1 9 Mechanical 4 5 1 9 Environmental 2 eet re hr 4 1 10 Installation Requirements 1 10 Certifications and compliances 1 11 Fuse and fuse cap part numbers 2 4 Instrument voltage settings 2 5 AC Line power requirements 2 6 Voltage ranges and switch settings 2 6 Power cord conductor identification 2 7 Power cord identification 2 7 Numeric value input for Example 1 2 23 Numeric value input for Example 2 2 24 Self Test Requirements 4 2 Calibration Test Requirements 4 3 Test Equip
4. 0 100 V 0 106 V 0 094 V 0 000 V 0 005 V 0 005 V 0 100 V 0 106 V 0 094 V e Setthe range of the digital multimeter to DC 2 V 0 510 V 0 490 V 1 015 V 0 985 V 0 500 V 1 000 V f Setthe range of the digital multimeter to DC 20 V 5 000 V 5 055 V 4 945 V AFG310 amp AFG320 Service Manual 4 17 Performance Verification 4 18 Operating Mode and Phase Test 6 Check the CH2 DC voltage accuracy by following the steps below a Remove the BNC cable from the CH1 connector on the front panel and connect it to the CH2 connector b Press the CH2 button above the BNC connector to set the waveform output to on c Press the CH button on the front panel to change the target channel to 2 d Check the CH2 output DC voltage accuracy using the same procedure described in step 5 on page 4 17 Check the phase of the output waveform in the triggered and burst mode Refer to Table 4 10 and Figure 4 4 for test requirements and connections Follow the steps below to make the proper connections 1 Use 50 Q coaxial cable to connect the output of function generator to a 50 Q terminator the CH1 input of the digital oscilloscope See Figure 4 4 2 Use 50 Q coaxial cable to connect the output of the signal generator to one side of a BNC T connector 3 Use a 50 Q coaxial cable to connect the CH2 input of the digital oscillo scope to the o
5. Ch2 500mv Figure 4 12 3 cycle 270 phase 90 AFG310 amp AFG320 Service Manual 4 25 Performance Verification 12 Check that the three cycles of the sine wave is output with the phase according to the phase changing from 360 to 360 in 90 steps 13 Follow the steps below to check the phase of the CH2 output a Remove the BNC cable from the CH1 connector on the front panel and connect it to the CH2 connector b Press the CH2 button above the BNC connector to set the waveform output to on c Press the CH button on the front panel to change the target channel to 2 d Check the phase of the 2 output using the same procedure described in Step 10 to 12 Modulation Function Test Check that the sweep FM modulation FSK modulation and AM modulation are functioning Refer to Table 4 13 Table 4 13 Modulation Function Test Requirements Equipment Required One 50 Q terminator Item 1 on page 4 5 One coaxial cable Item 3 page 4 5 One digital oscilloscope item 7 page 4 5 Prerequisites The Arbitrary Function Generator must meet the prerequisites listed on page 4 4 14 Connect the function generator to a digital oscilloscope Use 50 Q coaxial cable to connect the CH1 output of the function generator to a 50 Q terminator on the CH1 input of the digitizing oscilloscope Refer to Figure 4 13 4 26 AFG310 amp AFG320 Service Manual Performance Ver
6. Figure 2 4 Front panel controls 2 12 AFG310 amp AFG320 Service Manual Operating Instructions BOTH Button AFG320 Arbitrary Function Generatoronly Changes the operating target channel Turns BOTH input mode on or off by combining with SHIFT button Item and Menu Buttons SHIFT Button and Indicator BOTH EDIT SYSTEM ra orser nos SHIET PARAMETER SAVE Selects setting menu item and also selects Indicator is on main menu after pressing SHIFT button SHIFT button enables you to select a function displayed in blue nomenclature on the front panel when in shift state 2 84 Main Buttons Tektroni FUNC J FREQUENCY Hz x AFG320 FUNCTION GENERATOR BOTH EDIT SYSTEM Fa aw eese prise PARAMETER SAVE OFFSET mobe PHASE DEG MODE MDU RECALL OUTPUT TRIGGER MANUAL 42 Vpk MAX FLOAT 502 42 Vpk MAX FLOAT TTL Control Buttons Main Buttons A N N CANCEL EXIT ENTER SELECT PREV NEXT INC DEC OUTPUT Switch TRIGGER MANUAL Button Button Button Button and Indicators Button Mi n CH2 for AFG320 OUTPUT ME CH
7. 1 6 AFG310 amp AFG320 Service Manual Specifications Table 1 9 Modulation and Sweep Name Description FM Modulation Modulation Signals Sine Square Triangle Ramp User Waveforms Edit Waveform Modulating Frequency 10 mHz to 10 kHz Resolution 4 digits Peak Deviation 10 mHz to 8 MHz Resolution 7 digits FSK Modulation Modulating Frequency 10 mHz to 16 MHz Key Rate 10 mHz to 50 kHz Resolution 4 digits Numbers of Key 2 Sweep Spacing Linear or Log Direction Up or Down Start Stop Frequency Sine Square 10 mHz to 16 MHz Triangle Ramp Pulse 10 mHz to 100 kHz User Waveforms Edit Wave 10 mHz to 1 6 MHz form Resolution 5 digits Sweep Time 1 ms to 100 s Resolution 4 digits Table 1 10 Auxiliary Output Name Description CH1 SYNC Output Output Level Positive TTL Level Pulse Impedance 50 Q Pulse width 25 ns minimum AFG310 amp AFG320 Service Manual 1 7 Specifications Table 1 11 Auxiliary Input Name Description AM Input Range typical 2 Vp p 0 2 V Tolerance for 100 modulation External signal 1 V for 100 modulation level 0 V for 50 modulation level 1 V for 0 modulation level Impedance 10 Maximum Input 5 V DC plus peak AC Frequency Response Ext Signal DC to 200 kHz 3 dB Trigger Burst Input Input Level TTL Level Compatible Pulse Width 1 us minimum Impedance 10 Maximum Input Equal and Less than 5 V Trigger to Signal Delay
8. Mfr Code to Manufacturer following table cross indexes codes names and addresses of manufacturers Cross Index or vendors of components listed in the parts list 10 2 AFG310 amp AFG320 Service Manual Replaceable Mechanical Parts Manufacturers Cross Index Mfr Code Manufacturer 00779 AMP INC 060D9 UNITREK CORPORATION 0 01 STAUFFER SUPPLY CO 24931 BERG ELECTRONICS INC 61935 SCHURTER INC 80009 TEKTRONIX INC TK0191 Tektronix Japan Ltd TKOBD TAISHO ELECTRIC IND CO LTD 2W733 BELDEN WIRE amp CABLE COMPANY S3109 FELLER U S CORPORATION TK1373 PATELEC CEM 2541 AMERICOR ELECTRONICS LTD AFG310 amp AFG320 Service Manual Address CUSTOMER SERVICE DEPT PO BOX 3608 3000 COLUMBIA HOUSE BLVD SUITE 1 20 810 SE SHERMAN RF COAXIAL DIV 2100 EARLYWOOD DR PO BOX 547 1016 CLEGG CT PO BOX 750158 14150 SW KARL BRAUN DR PO BOX 500 PO BOX 5209 TOKYO INTERNATIONAL 5 28 16 OKUSAWA SETAGAYA KU 2200 US HWY 27 SOUTH PO BOX 1980 72 VERONICA AVE UNIT 4 10156 TORINO VAICENTALLO 62 456 UNIT H 2682 W COYLE AVE City State Zip Code HARRISBURG PA 17105 3608 VANCOUVER WA 98661 PORTLAND OR 97214 4657 FRANKLIN IN 46131 PETALUMA CA 94975 0158 BEAVERTON OR 97077 0001 TOKYO JP 100 31 TOKYO C JAPAN RICHMOND IN 47374 SOMERSET NJ 08873 ITALY ELK GROVE VILLAGE IL 60007 10 3 Replaceable Mechanical Parts Replaceable Parts List AFG310 Fig amp
9. Converter Wavetorm gO Ta J eoe S A20 CH1 amp Control AM IN 9 AM AMP i SYNC Analog OUTPUT OUT Output T CH1 IEEE GPIB OFFSET Control E Timing amp SIN REF s Y SIN CPU Address equence 2 Control Memory 008 Fite E AMP X tal Address 91 50 sa ARE osc m Decoder amp Converter 42 9MHz Trig Clock Control L an DIA Filter Comparator emory TRI SS SS SS IN D NC PR NER RES 1 posl ee ed F F ato Front Panel Suppl 45 an ront Panel om Key Board AC IN 52 LCD m Transformer EN J L zl Figure 8 1 Block diagram 8 2 AFG310 amp AFG320 Service Manual Diagrams A30 CH2 AWG320 only SYNC OUT Con AM IN TRIG IN GPIB G COAX CH2 OUT
10. 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 Change information if any is located at the rear of this manual Tektronix part numbers contain two digits that show the revision level of the part For most parts in this manual you will find the letters XX in place of the revision level number Part Number Revision Level Revision Level may show as XX NA 670 7918 03 670 7918 XX When you order parts Tektronix will provide you with the most current part for your product type serial number and modification if applicable At the time of your order Tektronix will determine the part number revision level needed for your product based on the information you provide AFG310 amp AFG320 Service Manual 10 1 Replaceable Mechanical Parts Module Servicing Modules can be serviced by selecting one of the following three options Contact your local Tektronix service center or representative for repair assistance Module Exchange In some cases you may exchange your module for a reman ufactured module These modules cost significantly less than new modules and meet the same factory specifications For more information about the module exchange program call 1 800 TEK WIDE extension 6630 Module Repair and Return You may ship your module to us for repair after which we will return it to you
11. Installation 2 10 AFG310 amp AFG320 Service Manual eee Operating Instructions This section describes the AFG310 and AFG320 Arbitrary Function Generators menu system and numeric and text input methods Before servicing the AFG310 and AFG320 Arbitrary Function Generators read the following operating instructions These instructions are at the level appropri ate for servicing the AFG310 and AFG320 Arbitrary Function Generators The user manual contains complete operator instructions In addition the Performance Verification section includes instructions for making the front panel settings that are required to check the AFG310 and AFG320 Arbitrary Function Generators characteristics This section contains the following information Provides an overview of the instrument controls and their functions Provides an LCD display example Describes basic operating procedures grouped by function Explains how to enter numbers Explains how to output a waveform Explains how to edit save and input waveforms Describes the terminology and content of representative screen displays Provides tutorials covering basic procedures for waveform output and basic settings on the AFG320 Arbitrary Function Generator AFG310 amp AFG320 Service Manual 2 11 Operating Instructions Controls and Connectors Front Panel Channel Indicators AFG320 only LCD Display Indicates current target channel BOTH on indicates that the
12. IEEE STD 488 PORT IN 2 lt A AM SYNC 10 kQ T Power Cable Connector Figure 2 2 Rear Panel Controls 2 4 High Low Slide Switch AFG310 amp AFG320 Service Manual Installation Check Voltage Settings Check that you have the proper electrical connections The instrument requires 90 to 250 VACrms 48 Hz to 440 Hz and may require up to 70 W The instrument voltage setting must be adapted to power source voltage See Table 2 2 for switch settings Table 2 2 Instrument voltage settings 115 230 Switch High Low Switch Power Source 115V Low 90 V to 110 V 115V High 108 V to 132 V 230 V Low 180 V to 220 V 230 V High 216 V to 250 V AFG310 amp AFG320 Service Manual 2 5 Installation 2 6 Table 2 3 contains information for the AFG310 and AFG320 Arbitrary Function Generators power requirements Table 2 3 AC Line power requirements Name Line Frequency Range 48 0 Hz to 63 0 Hz 48 0 Hz to 440 Hz Maximum Power Consumption Maximum Current Description VACnys 127 V to 250 V 90 V to 127 V 70W 2A CAUTION To avoid damaging the instrument be sure that the power cord is disconnected before changing the voltage setting Check the voltage settings on the two slide switches on the rear panel The correspondence between the volta
13. 174 3201 00 174 3201 00 174 3937 00 071 0175 ORDER BY DESCRIPTION ORDER BY DESCRIPTION ORDER BY DESCRIPTION 161 0104 05 161 0104 08 ORDER BY DESCRIPTION 071 0176 XX 075 0288 XX 016 1674 00 012 1342 00 012 1256 00 553577 3 28A123 1 AFG310 amp AFG320 Service Manual
14. 671 4455 220 0209 00 120 2003 00 671 4454 348 1587 00 211 0965 00 204 0832 00 211 0965 00 119 6009 00 213 1113 00 129 1493 01 131 6654 00 211 8800 50 119 5862 00 348 1599 00 211 0965 00 220 0194 00 211 0751 00 211 0751 00 671 4456 XX 159 0333 00 163 1103 00 159 0022 01 159 0413 00 159 0417 00 200 2264 00 200 2265 00 671 A508 XX Serial No Effective Serial No Discont d Qty Name amp Description 1 4 1 CIRCUIT BD ASSY A40 POWER SUPPLY AFG320 NUT M4 STL NI PL W EXT TOOHED WASHER TRANSFORMER 100 120 220 240V 50 60Hz IN 18 2V 2A 8 1V 1 5A 8 2V 1A OUT CIRCUIT BD ASSY A20 MAIN 389 A379 XX WIRED FOOT CABNET W STAND SCREW MACHINE M3X8MM L PNH STL ZN PL CROSS REC FUSE HOLDER SCREW MACHINE M3X8MM L PNH STL ZN PL CROSS REC FILTER RF1 SCREW TPG 4 5X10 BDGH TYPE1 STL ZNPL CROSS REC SPACER POST 16 5MML X M3 5 X 6MM INT M3 EXT STL 7MM CONN RF JACK BNC PNL SCREW MACHINE M4X5MM L BDGH STL MFZN C FAN TUBEAXIL 119 4361 00 W CABLE ASSY FOOT CABNET REAR SCREW MACHINE M3X8MM L PNH STL ZN PL CROSS REC NUT PLATE STL SCREW MACHINE M3X8MM L PNH STL CROSS REC SCREW MACHINE M3X8MM L PNH STL CROSS REC CIRCUIT BD ASSY A30 AFG320 ONLY FUSE WIRE LEAD A20 A30 265 271 0 25A 125V FAST IC MEMORY CMOS EPROM PRGM V2 1 0560 FUSE CARTRIDGE 3AG 1A 250V FAST BLOW FUSE CARTRIDGE DIN O 5
15. AFG320 Service Manual 0 1792 Vrms 0 1708 Vrms 4 13 Performance Verification a Set the range of the digital multimeter to AC 2V and check that the square waveform is within the range listed in following table LCD Display in AMPL Column Amplitude Range 0 500 Vp p 0 2550 Vrms 0 2450 Vrms 0 700 Vp p 0 3560 Vrms 0 3440 Vrms 1 000 Vp p 0 5075 Vrms 0 4925 Vrms 1 750 Vp p 0 8862 Vrms 0 8638 Vrms 2 500 Vp p 1 265 Vrms 1 235 Vrms 3 500 Vp p 1 770 Vrms 1 730 Vrms b Set the range of the digital multimeter to AC 20 V and check that the square waveform is within the range listed in following table LCD Display in AMPL Column Amplitude Range 5 000 Vp p 2 527 Vrms 2 473 Vrms 7 000 Vp p 3 537 Vrms 3 463 Vrms 10 00 Vp p 5 052 Vrms 4 948 Vrms 9 Change the output waveform to TRIA triangle Set the controls of the function generator to AMPL item Press the buttons on the front panel in the following order FUNC gt gt ENTER gt AMPL 10 Check that the amplitude for the triangle waveform is within the range listed in the tables below Use the numeric keys and unit keys to change the amplitude of the function generator LCD Display in AMPL Column Amplitude Range 10 00 Vp p 2 917 Vrms 2 857 Vrms 7 000 Vp p 2 042 Vrms 2 000 Vrms AFG310 amp AFG320 Service Manual Performance Verification a Set the range of the digital multimeter to AC 2 V
16. If a value is entered to greater precision than the resolution of the numeric item the value will be rounded off when confirmed Using the Control Buttons Follow the steps below to change the numeric value Use the buttons shown in Figure 2 13 to change the numeric values EXIT CURSOR CANCEL Button cancel CANCEL SELECT gt INC DEC Buttons po PREV NEXT ENTER d Button Buttons Figure 2 13 Buttons for changing numeric value 1 Place the cursor on the digit that will be changed by pressing the lt or gt button 2 Usethe and v buttons to change the numeric value Use the CANCEL button to correct an input Note that this operation is valid when the block cursor is displayed The CANCEL button cancels the input value and redisplays the original value If the cursor is placed on the highest digit and the digit is reduced to 1 the value will not change if the v button is pressed again At this point the value can be reduced by moving the cursor to the next lower digit Amplitude and offset values are the exception m Amplitude The value to the left starting at the position of the cursor can be reduced to 1 in the case of values like 1 030 and 0 120 or 0 in the case of values like 0 235 and 0 080 Then pressing the v button reduces the value to the minimum value of 0 050 AFG310 amp AFG320 Service Manual Operating Instructions m Offset If the current offset value is positive press the v button to
17. Index Number 1 1 2 3 4 5 6 Figure 10 1 Front Panel AFG310 10 4 Tektronix Part Number 333 4277 00 331 0574 00 200 4444 00 260 2704 00 671 4441 XX 131 0955 00 131 1315 01 Serial No Effective Serial No Discont d Mfr Qty Name amp Description Code Mfr Part Number 1 PANEL FRONT POLYCARBONATE AFG310 80009 200 0444 00 1 WINDOW CH1 MMA 80009 334 0573 00 1 COVER FRONT POLYCARBONATE TK0191 200 4444 00 1 SWITCH SLIDE TK0191 260 2704 00 SPST 100MA 50VDC 8POS 16DIR WASHABLE TYPE FJSK 1 CIRCUIT BD ASSY A10 FRONT 389 A378 XX WIRED TK0191 671 4441 1 CONN RF JACK BNC 50 OHM FEMALE STR SLDR 00779 87 334 017 CUP FRONT PNL GOLD SLDR CUP 1 CONN RF JACK BNC 50 OHM FEMALE STR PELTOLA 24931 28JR306 1 PANEL MOUNT LY 2724 AFG310 amp AFG320 Service Manual Replaceable Mechanical Parts Replaceable Parts List AFG320 Fig amp Index TektronixPart Serial No Serial No Mfr Number Number Effective Discontd Qty amp Description Code Mfr Part Number 2 1 333 4299 00 1 PANEL FRONT POLYCARBONATE AFG320 0191 333 4277 00 2 331 0573 00 1 WINDOW 2 0191 331 0574 00 3 200 4444 00 1 COVER FRONT POLYCARBONATE 0191 200 4444 00 4 260 2704 00 1 SWITCH SLIDE TK0191 260 2704 00 SPST 100MA 50VDC 8POS 16DIR WASHABLE FJSK 5 671 4441 1 CIRCUIT BD ASSY 10 FRONT 389 A378 XX WIRED 0191 671 4441 6 131 0955
18. LCD Display in AMPL Column Amplitude Range 5 000 Vp p 1 459 Vrms 1 428 Vrms 3 500 Vp p 1 0219 Vrms 0 9989 Vrms 2 500 Vp p 0 7303 Vrms 0 7131 Vrms 1 750 Vp p 0 5116 Vrms 0 4987 Vrms 1 000 Vp p 0 2930 Vrms 0 2844 Vrms 0 700 Vp p 0 2055 Vrms 0 1987 Vrms b Set the range of the digital multimeter to AC 200 mV LCD Display in AMPL Column Amplitude Range 0 500 Vp p 0 1472 Vrms 0 1415 Vrms 0 350 Vp p 0 10349 Vrms 0 09859 Vrms 0 250 Vp p 0 07433 Vrms 0 07001 Vrms 0 125 Vp p 0 03788 Vrms 0 03429 Vrms 0 100 Vp p 0 03059 Vrms 0 02714 Vrms 0 050 Vp p 0 01602 Vrms 0 01285 Vrms Follow the steps below to check the CH2 amplitude accuracy 1 Remove the BNC cable from CH1 connector on the front panel and connect it to the CH2 connector Press the CH2 to set the waveform output to on Press the CH button to change the target channel to CH2 Check the CH2 output amplitude accuracy using the same procedure described in Steps 6 through 10 on page 4 12 AFG310 amp AFG320 Service Manual 4 15 Performance Verification DC Voltage Accuracy Check the DC voltage accuracy of the offset output Test Use a 50 Q coaxial cable to connect the output of the function generator to a 50 Q precision terminator on the input of the digital multimeter Refer to Figure 4 3 Table 4 9 DC Voltage Accuracy Test Requirements Equipment Required Prerequisites One 50 Q precision ter The A
19. the grounding connection must be made before making connection to the instrument s input or output terminals This instrument operates with any line voltage from 100 VACgys to 240 with any line frequency from 48 Hz to 63 Hz There are two fuses either of which may be used throughout the line voltage and frequency ranges The two fuses are not interchangeable as each requires a different fuse cap AFG310 amp AFG320 Service Manual 2 3 Installation Fuse Type and Rating The AFG310 and AFG320 Arbitrary Function Generator uses the same fuse for the entire operating line voltage range Refer to Table 2 1 for fuse and fuse cap information WARNING To avoid electrical shock be sure that the power cord is disconnected before checking the fuse To remove the fuse push in and turn the fuse holder cap counterclockwise with a screwdriver See Figure 2 2 for the fuse location NOTE The instrument order specified either a UL approved or an IEC approved fuse Each fuse requires its own cap See Table 2 1 The fuse approved under the IEC standards is used in equipment sold in the European market Table 2 1 Fuse and fuse cap part numbers Fuse 0 25 inch x 1 25 inch UL 198 6 3 AG 1 A fast 250 V 5 mm x 20 mm IEC 127 0 5 A T 250 V Tektronix Fuse Part Number 159 0022 01 159 0413 00 Fuse Holder Fuse Cap Part Number 200 2264 00 200 2265 00 115 230 V Slide Switch
20. 00 1 CONN RF JACK BNC 50 OHM FEMALE STR SLDR 00779 87 3334 017 CUP FRONT PNL GOLD SLDR CUP 7 131 1315 01 2 CONN RF JACK BNC 50 OHM FEMALE STR PELTORA 24913 28JR306 1 PANEL MOUNT IY Figure 10 2 Front Panel AFG320 AFG310 amp AFG320 Service Manual 10 5 Replaceable Mechanical Parts Replaceable Parts List AFG310 Fig amp Index Number 3 1 9 10 11 10 6 Tektronix Part Number 671 4460 220 0209 00 120 2003 00 671 4454 348 1587 00 211 0965 00 204 0832 00 211 0965 00 119 6609 00 213 1113 00 129 1493 01 131 6654 00 211 8800 50 119 5862 00 348 1599 00 211 0965 00 220 0194 00 211 0751 00 211 0751 00 159 0333 00 163 1103 00 159 0022 01 159 0413 00 159 0417 00 200 2264 00 200 2265 00 Serial No Effective Serial No Discont d Qty Name amp Description 1 CIRCUIT BD ASSY A40 POWER SUPPLY AFG310 389 A390 XX WIRED NUT M4 STL NI PL W EXT TOOHED WASHER TRANSFORMER 100 120 220 240V 50 60 2 IN 18 2V 2A 8 1V 1 5A 8 2V 1A OUT CIRCUIT BD ASSY A20 MAIN 389 A379 XX WIRED FOOT CABNET W STAND SCREW MACHINE M3X8MM L PNH STL ZN PL CROSS REC FUSE HOLDER SCREW MACHINE M3X8MM L PNH STL ZN PL CROSS REC FILTER RFI SCREW TPG 4 5X10 BDGH TYPE1 STL ZNPL CROSS REC SPACER POST 16 5MML X M3 5 X 6MM INT M3 EXT STL 7MM OD CONN RF JACK BNC PNL SCREW MACHINE M4X5MM L BDGH STL MFZN
21. 5 6 CANCEL 4 CANCEL Button kHz ms mV 111 2 3 INF Hz sN ENTER 0 amp Y 2 Numeric Keys Unit Keys ENTER Button Figure 2 11 Buttons and keys for inputting numeric value 1 Input the target value using the numeric keys Figure 2 12 shows the input of the value 1 0 When the numeric keys are used for input a block cursor is displayed as shown in the figure Fc FREQUENCY JC AMPLE SINE 100 0000k 1 000 Numeric Value gt 1 0 CONT OFF 0 During Input J MODUL PHASE DEG Figure 2 12 Example for inputting numeric value Use either the delete button or the CANCEL button to correct an input m Delete Button This button deletes one digit decimal point or the character to the left of the block cursor If the delete button is pressed and held down the delete operation is repeated m CANCEL Button The value input is cancelled and the original value is displayed AFG310 amp AFG320 Service Manual 2 21 Operating Instructions 2 22 2 The input numeric value is confirmed by pressing a unit key or the ENTER button NOTE The character can be input at any point prior to confirming the numeric value for numeric items that allow a negative value If a value outside the valid range for a numeric item is entered the value will be replaced by the smallest or largest value in that range when the value is confirmed
22. Accessory number AFG310 and AFG320 Arbitrary Function Generator Service Manual 071 0176 XX Wavewriter Waveform Capture and Editing Software 53 400 GPIB Cable 012 0991 00 50 Q BNC Cable 61 cm 24 inch long 012 1342 00 50 Q BNC Cable double shielded 012 1256 00 50 Q Termination 50 Q 1 Q 2W 011 0049 01 Rack Mount Kit EIA 016 1674 00 AFG310 amp AFG320 Service Manual rr Ae Diagrams This section contains the following diagrams m Block Diagram for the AFG310 and AFG320 Arbitrary Function Generators m Interconnect Diagram for the AFG310 and AFG320 Arbitrary Function Generators Block diagrams show the modules and functional blocks in the function generator Interconnect diagrams show how the modules in the function generator connect together AFG310 amp AFG320 Service Manual 8 1 Diagrams DERIT eae ef 7 A30 CH2 AFG320 only Analog _ OUTPUT m CH2 v FF Timing amp OERSET Memory Address SIN REF Control Y ih 5 gt DDSH Filter r m Sin SQ
23. C FAN TUBEAXIL 119 4361 00 W CABLE ASSY FOOT CABNET REAR SCREW MACHINE M3X8MM L PNH STL ZN PL CROSS REC NUT PLATE STL SCREW MACHINE M3X8MM L PNH STL CROSS REC SCREW MACHINE M3X8MM L PNH STL CROSS REC FUSE WIRE LEAD A20 F265 F271 AXI 0 25A 125V FAST IC MEMORY CMOS EPROM PRGM V2 1 0560 FUSE CARTRIDGE 3AG 1A 250V FAST BLOW FUSE CARTRIDGE DIN O 5A TIMELAG IEC AFG310 FUSE CARTRIDGE 3AG 0 5A 250V FAST CAP FUSEHOLDER 3AG FUSES CAP FUSEHOLDER 5 X 20MM FUSES Mfr Code 0191 80009 0191 0191 0191 0191 61935 0191 80009 0191 0191 80009 80009 0191 0191 0191 0191 OKB01 OKB01 80009 TK0191 80009 TK0191 TK0191 61935 61935 Mfr Part Number 671 4460 XX 220 0209 00 120 2003 00 671 4454 348 1587 00 211 0965 00 031 1673 FEU MODEL 211 0965 00 119 6609 00 213 1113 00 129 1493 01 31 6654 00 211 8800 50 119 5862 00 348 1599 00 211 0965 00 220 0194 00 211 0751 00 211 0751 00 159 0333 00 163 1103 00 159 0022 01 159 0413 00 159 0417 00 FEK 031 1666 031 1663 AFG310 amp AFG320 Service Manual Replaceable Mechanical Parts Figure 10 3 Chassis AFG310 AFG310 amp AFG320 Service Manual 10 7 Replaceable Mechanical Parts Replaceable Parts List AFG320 Fig amp Index Number 4 1 2 3 11 12 13 14 15 16 10 8 Tektronix Part Number
24. Cabinet 10 10 AFG310 amp AFG320 Service Manual Replaceable Mechanical Parts Replaceable Parts List TektronixPart Serial No Serial No Number Number Effective Discontd Qty 5 1 366 0800 00 1 2 211 0959 00 4 3 200 4441 00 1 4 211 8800 50 2 Name amp Description PUSH BUTTON POWER POLYCARBONATE SCREW MACHINE M4X5MM L BDGH STL ZN PL CROSS REC COVER REAR POLYCARBONATE SCREW MACHINE M4X8MM L BDGH STL MFZN C Figure 10 6 Final AFG320 AFG310 amp AFG320 Service Manual Mfr Code 0191 0191 0191 0191 Mfr Part Number 366 0800 00 211 0959 00 200 4441 00 211 8800 50 10 11 Replaceable Mechanical Parts Replaceable Parts List Fig amp Index Number 10 12 Tektronix Part Number 174 3934 00 174 3935 00 174 4088 00 174 3936 00 174 2801 00 174 3201 00 174 3201 00 174 3937 00 071 0175 50 161 0230 01 161 0104 06 161 0104 07 161 0104 05 161 0104 08 161 0167 00 071 0176 50 075 0288 XX 016 1674 00 012 1342 00 012 1256 00 012 0991 00 011 0049 01 Serial No Effective Serial No Discont d Qty Name amp Description 1 2 CA ASSY A20 J600 GPIB FLAT CA ASSY SP ELEC 50 OHM COAX 15 L 8 N W HLDR A20 J990 A20 J800 CA ASSY SP ELEC 50 OHM COAX A20 J200 CA ASSY SP ELEC 64 30AWG 45MM L FLAT A30 J70 USED IN ONLY AFG320 CA ASSY SP ELEC A30 J490 10 AWG26 CA ASSY RF
25. Is Power off and disconnect the power cable LCD display Remove the generators cabinet And connect normal the generator to the correct power source Press the POWER SWITCH to ON Is there Power off and disconnect the 5 V between power cable Replace A40 And J640 9 and connect the generator to the J640 1 on correct power source Press the A20 POWER SWITCH to ON Is Power off and LCD display Is conduction disconnect the normal of the ribbon cable power cable between J100 of A10 Replace the ribbon and J640 of A20 cable between normal J100 of A10 and J640 of A20 Power off and disconnect the Power off and disconnect the power cable power cable Replace the A10 Replace A20 And connect the generator to the correct power source Press the POWER SWITCH to ON Is Power off and LCD display disconnect the normal power cable Replace A20 Perform next page Troubleshooting procedure 3 Figure 6 5 Troubleshooting procedure 2 AFG310 amp AFG320 Service Manual 6 11 Troubleshooting Continue from previous page Troubleshooting procedure 2 Start Up Diagnostics runs Error messages on LCD SELF TEST ERROR FLASH MEMORY GPIB INTERFACE No No error is CH1 WAVEFORM MEMORY indicated on LCD CH1 SEQUENCE MEMORY as the result of SELF TEST ERROR CH2 WAVEFORM MEMORY CH2 SEQUENCE MEMORY Yes INTERNAL ERROR SYSTE
26. New Modules You may purchase replacement modules in the same way as other replacement parts Using the Replaceable Parts List This section contains a list of the mechanical and or electrical components that are replaceable for the generator Use this list to identify and order replacement parts The following table describes each column in the parts list Parts List Column Descriptions Column Column Name Description 1 Figure 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 3and4 Serial Number Column three indicates the serial number at which the part was first effective Column four indicates the serial number at which the part was discontinued No entries indicates the part is good for all serial numbers 5 This indicates the quantity of parts used 6 Name amp Description An item name is separated from the description by a colon Because of space limitations an item name may sometimes appear as incomplete Use the U S Federal Catalog handbook H6 1 for further item name identification 7 Mfr Code This indicates the code of the actual manufacturer of the part Code to name and address cross reference is located after this page 8 Mfr Part Number This indicates the actual manufacturer s or vendor s part number Abbreviations Abbreviations conform to American National Standard ANSI Y 1 1 1972
27. button is pressed the corresponding menu item will be displayed in the second line of the LCD The display example shown below occurs when the FUNC PARAMETER menu has been selected In some cases the FUNC PARAMETER MODE PARAMETER or MODUL PARAMETER shown in the second line of the LCD is not a valid parameter for the FUNC displayed in the first line of the LCD For example the FUNC PARAMETER Pulse Duty has no effect on the FUNC SINE as displayed in Figure 2 7 AFG310 amp AFG320 Service Manual 2 17 Operating Instructions Moving Between Menus FUNC J FREQUENCY Hz J AMPL V gt cH SINE 100 0000k 1 000 PULSE DUTY 50 A A OFFSET V MODE MODUL Display of Menu Setting Value of Item selected Menu Item Figure 2 7 Menu item display The buttons used for selecting main menus and items from the setting menu are located in the upper right section of the front panel Refer to Figure 2 8 m Item buttons in the Setting menu seven items FREQ AMPL OFFSET PHASE FUNC MODE MODUL m Main menu buttons seven types EDIT SYSTEM FUNC PARAMETER MODE PARAMETER MODUL PARAMETER RECALL SAVE ARBITRARY Tektronix AFG320 function GENERATOR BOTH EDIT SYSTEM CH FREQ AMPL FSET PHASE PARANETER SAVE SHIFT Func me mu REAL Figure 2 8 Item buttons and main menu buttons Operation f
28. key or the ENTER button is not pressed the value will revert to the previously set value after exiting from the menu The numeric values for other than the FREQ AMPL OFFSET and PHASE items in the setting menu have the characteristics of the numeric values in setting Example 2 AFG310 amp AFG320 Service Manual 2 23 Operating Instructions Outputting the Waveform Channel Indicators Table 2 8 Numeric value input for Example 2 Numeric value Buttons for input LCD display status 121 0k Before input lt 121 0k v 120 0 k lt 120 0 k zm During input v 110 0 k v 100 0 k v 90 00 k ENTER 90 00 k Entered Follow the steps below to output a waveform 1 Connect an oscilloscope to the function generator to observe the output waveform 2 Select a target channel for operation The settings can be set for each channel independently Select the desired channel before setting each item The CH indicator displays the selected channel Press the CH button to change the channel CH Button FUNC FREQUENCY Hz JC AMNPL V 9 BOTH 9 N OFFSET V MODE MopuL PHASE DEG TektronixAF 3320 T PARAMETER oe JU JU Figure 2 14 CH button and channel indicators 2 24 AFG310 amp AFG320 Service Manual Operating Instructions 3 Select one of the standard
29. multimeter Item 10 page 4 5 1 50 Q coaxial cable to connect the output of the function generator to a 50 precision terminator on the input of the digital multime ter DMM Refer to Figure 4 3 AFG320 Dual Banana to DMM BNC Adapters 50 Precision Terminator 50 Q Coaxial Cable Figure 4 3 Initial Test Hookup 2 Set the DMM measurement range to AC 20 V 3 Select INITIALIZE in the SYSTEM menu on the function generator to initialize the system Press the buttons on the front panel in the following order SHIFT PHASE gt lt button until INITIALIZE is displayed gt ENTER gt ENTER AFG310 amp AFG320 Service Manual 4 11 Performance Verification 4 Set the CH1 and CH2 frequencies to 1 kHz and amplitude to 10 Vp p then press the CH button to change the target channel back to CH1 FREQ 1 gt kHz ms mV AMPL gt 1 gt 0 gt Hz sN CH gt FREQ gt 1 kHz ms mV AMPL gt 1 gt 0 gt Hz s V gt 5 Press the CHI button to set the waveform output to on 6 Check that the amplitude for the sine waveform is within the range listed in the following tables Use the numeric keys and unit keys to change the amplitude of the function generator LCD Display in AMPL Column 7 000 Vp p Amplitude Range 3 572 Vrms 3 499
30. provides service to cover repair under warranty as well as other services that may provide a cost effective answer to your service needs Whether providing warranty repair service or any of the other services listed below Tektronix service technicians are well equipped to service the AFG310 and AFG320 Arbitrary Function Generator Tektronix technicians train on Tektronix products they have access to the latest information on improvements to the AFG310 and AFG320 Arbitrary Function Generators as well as new options Tektronix warrants this product for three years from date of purchase The warranty appears on the back of the title page in this manual Tektronix technicians provide warranty service at most Tektronix service locations The Tektronix product catalog lists all worldwide service locations Tektronix supports repair to the module level by providing Module Exchange Module Exchange This service reduces down time for repair by allowing you to exchange most modules for remanufactured ones Each module comes with a 90 day service warranty For More Information Contact your local Tektronix service center or sales engineer for more information on any of the repair or adjustment services just described AFG310 amp AFG320 Service Manual Introduction Performance Check Interval Generally the performance check described in the Performance Verification section should be done every 12 months In addition a performance che
31. screen shots were made with a TDS 700 series oscilloscope with CH 1 set to 200 mV DIV and using a TTL compatible 0 5 V 10 KHz square wave for the external trigger source AFG310 amp AFG320 Service Manual 4 21 Performance Verification Tek oni 531 Acqs M 26 05 di F Figure 4 5 1 cycle 180 phase 18511 Acqs Tek 20 0345 Figure 4 6 1 cycle 0 phase 360 4 22 Ch2 2 16 v AFG310 amp AFG320 Service Manual Performance Verification Tek 2 50 5 5 2896 4045 Figure 4 7 1 cycle 270 phase 90 Tek 250055 43217 Acqs Figure 4 8 1 cycle 90 phase 270 AFG310 amp AFG320 Service Manual 4 23 Performance Verification 4 24 11 Follow the steps below to change the operating mode to burst Press the following buttons on the front panel to change the mode MODE gt ENTER Tek 250867 1946 Acqs eres chi 200mva IE 500mv M20 0ps Ch2 7 500mv Figure 4 9 3 cycle 0 phase 360 Acqs 1 20 045 Ch2 500 Figure 4 10 3 cycle 90 phase 270 AFG310 amp AFG320 Service Manual Performance Verification Tek 2 500 Figure 4 11 3 cycle 180 phase 180 Tek Run tee Sample
32. the CH2 output waveform using the same procedure described in the note on page 4 5 Frequency Accuracy Check the frequency accuracy of the output waveform Refer to Table 4 7 for Test test requirements Table 4 7 Frequency Accuracy Test Requirements Equipment Required Prerequisites One coaxial cable Item 3 page 4 5 The Arbitrary Function Generator must meet the prerequisites listed on page 4 4 One N to BNC adapter Item 5 page 4 5 One frequency counter Item 8 page 4 5 1 Connect the function generator to the Frequency Counter Use 50 coaxial cable to connect the CH1 output of the function generator to the CH1 input of the Frequency Counter Refer to Figure 4 2 AFG320 Frequency Counter 50 Q Coaxial Cable N to BNC adapter Figure 4 2 Initial Test Hookup 2 Select INITIALIZE in the SYSTEM menu on the function generator Press the buttons on the front panel in the following order SHIFT PHASE gt lt button until INITIALIZE is displayed 2 ENTER gt ENTER AFG310 amp AFG320 Service Manual 4 9 Performance Verification 3 Set the and 2 frequencies to 16 MHz then press the CH button to change the target channel back to Chl Press the buttons on the front panel in the following order FUNC gt gt ENTER FREQ gt 1 6 MHzlus CH gt FREQ gt 1 gt 6 gt MHz us gt CH 4 Press the CH1 button to s
33. to do require no external equipment or signal sources and perform extensive functional and accuracy testing to provide high confidence that the Arbitrary Function Generator will perform properly They can be used as a quick check before making a series of important measurements If you are not familiar with operating this Arbitrary Function Generator read the Getting Started and Operating Basics sections in this manual These sections contain instructions that will familiarize you with the use of the front panel controls and the menu system Throughout these procedures the following conventions apply Each test procedure uses the following general format Title of Test Equipment Required Prerequisites Procedure Each procedure consists of as many steps and substeps as required to do the test Steps and substeps are sequenced Refer to Conventions on page for further information AFG310 amp AFG320 Service Manual 4 1 Performance Verification Brief Procedures 4 2 Self Test Follow the Self Test and Calibration Test procedures below to verify that the AFG310 or AFG320 is operating properly This procedure uses internal routines to verify that the Arbitrary Function Generator is operating properly No test equipment or hookups are required Table 4 1 Self Test Requirements Equipment Required Prerequisites None Power on the Arbitrary Function Generator and allow a 20 minute warm
34. to switch to the higher level to the item selection level and to make it possible to repeat Steps 2 through 4 It is possible to select another menu or set an item at any time while the underscore cursor is displayed When a menu is selected the same item and its selection will be displayed with same cursor location as they were the last time that menu was selected Each time the EXIT CANCEL button is pressed the system switches to the next higher level and finally returns to the default display In addition to the EXIT CANCEL button the OFFSET PHASE MODE and MODUL buttons can also be used to return to the default display Numeric Input An underscore is displayed at one of the digits in the numeric value on the LCD display when numeric input is required See Figure 2 10 FREQUENCY AMPL V SINE 100 0000k 1 000 Selected Numeric Item 0 000 CONT OFF 0 MODE MODUL PHASE DEG Figure 2 10 Display example for a numeric item selected The numeric keys and control buttons are used for numeric input 2 20 AFG310 amp AFG320 Service Manual Operating Instructions Using the Numeric Buttons Follow the steps below to input numeric values Use the buttons and keys shown in Figure 2 11 to input numeric values with the numeric keys 7 9 lt x Delete Button MHz us 4
35. up before doing this procedure Do the following steps to verify passing of internal self test 1 Select the SELF TEST item in the SYSTEM menu Do the following proce dure SHIFT PHASE lt button until SELF TEST is displayed ENTER 2 Press ENTER button to execute self test The message TESTING is displayed in the first line of the LCD during self test 3 Wait until the test is completed When an error is detected during diagnostic execution the instrument displays the name of that test item If multiple errors were detected the test item names can be viewed using the v and buttons Press the front panel EXIT CANCEL button to exit from the error display state 4 Verify passing of the internal self test If the self test completes without finding any problems the display returns to Its state before the self test was executed 5 Return to regular service Press EXIT CANCEL button until the default display is obtained AFG310 amp AFG320 Service Manual Performance Verification Calibration Test This procedure uses internal routines to verify proper calibration No test equipment or hookups are required Table 4 2 Calibration Test Requirements Equipment Required Prerequisites None Power on the Arbitrary Function Generator and allow a 20 minute warm up before doing this procedure An ambient temperature is between 20 C and 30 C Do the following steps to verify passing o
36. waveforms a Press the FUNC button on the front panel b Use the and v buttons to scroll through the waveform names until the desired standard waveform is displayed in the LCD c Press the ENTER button to confirm the selected waveform 4 Press the OUTPUT switch to start the waveform output The OUTPUT switch opens and closes the line that connects the instruments internal output circuit to the output connector When this switch is on a waveform corresponding to the currently set output mode continuous triggered or burst mode will be output from the OUTPUT connector AFG310 amp AFG320 Service Manual 2 25 Operating Instructions 2 26 AFG310 amp AFG320 Service Manual Theory of Operation Module Overview Front Panel A10 and LCD This section describes the electrical operation of the AFG310 and AFG320 Arbitrary Function Generator modules Refer to Figure 8 1 Block Diagram and Figure 8 2 Interconnect diagram beginning on page 8 2 The 42 9MHz clocks are supplied from the crystal oscillator to the Address Decoder amp Trig Clock Control to conduct major control as a function generator together with the main CPU The trigger signal from EXT TRIG IN on the front panel is passed through the comparator and then sent to the Address Decoder amp Trig Clock Control circuit The GPIB controller is also controlled by this circuit The Timing amp Memory Address Control provided for each channel controls outpu
37. 0 Figure 2 11 Buttons and keys for inputting numeric value 2 21 Figure 2 12 Example for inputting numeric value 2 21 Figure 2 13 Buttons for changing numeric value 2 22 Figure 2 14 CH button and channel indicators 2 24 Figure 4 1 Initial Test Hookup 4 6 Figure 4 2 Initial Test Hookup 4 9 Figure 4 3 Initial Test Hookup 4 11 Figure 4 4 Initial Test Hookup 4 19 Figure 4 5 1 cycle 180 phase 4 22 Figure 4 6 1 cycle 0 phase 360 4 22 Figure 4 7 1 cycle 270 phase 90 4 23 Figure 4 8 1 cycle 90 phase 2709 4 23 Figure 4 9 3 cycle 0 phase 360 4 24 Figure 4 10 3 cycle 490 phase C270 4 24 Figure 4 11 3 cycle 180 phase 180 4 25 Figure 4 12 3 cycle 270 phase 4 25 Figure 4 13 Initial Test Hookup 4 27 Figure 6 1 POWER switch 6 7 Figure 6 2 LCD Display at Power On 6 8 Figure 6 3 The LCD display when an error is found 6 8 Figure 6 4 Troubleshooting procedure 1 6 10 Figure 6 5
38. 1 2 aE EL 54 Cancels the selection of an Pe rm or The switch toggles When pressed value an waveform output on generates restores the Confirms selected Changes items Changes selections and off trigger signal previous state item and selection Moves cursor Increases or The indicator is on when when block cursor Confirms numeric the numeric decreases corresponding output is displayed value with same unit value numeric value switch is in the on state Shifts operating CH 2 output switch level in menu and indicator are not layers when installed in the underscore cursor AFG310 is displayed Figure 2 4 cont Front panel controls AFG310 amp AFG320 Service Manual Operating Instructions Rear Panel IEEE STD 488 GPIB Connector Connects GPIB interface cable Fuse Holder Fast blow fuse is installed in this holder 1 A for 115 V line 0 5 A for 230 V line Figure 2 5 shows the rear panel controls and connectors 115 V 230 V Slide Switch Toggles voltage setting between 115 V and 230 V line IEEE STD 488 PORT AM IN SYNC OUT O m NS A AM IN Chassis Ground SYNC OUT Power Cable High Low Connector Screw Connector Connector Slide Switch An external
39. 10 7 Brown Is the LCD back light turned on Check the voltage of J490 on A20 or A30 Same is true for A30 of AFG320 Be sure to connect a floating ground to chassis ground Change the AC fuse if necessary After setting switch correctly return to the beginning Power off and disconnect the power cable Remove the generators cabinet And connect the Is the fan generator to the correct turning power source Press the POWER SWITCH to ON Power off and disconnect the power cable Replace 40 And connect the generator tb the correct power source Press the POWER SWITCH to ON Check voltage of J490 on A20 or A30 Yes Power off and disconnect the power cable Replace the A20 board Power off Power off O K Is there Power off about 11V across and disconnect Perform next J480 1 and the power cable page J480 2 Replace the Fan Troubleshooting procedure 2 Is there about 11V across J250 10 and J250 12 of A40 and disconnect the and disconnect the power cable power cable Replace A20 or Replace the power A30 transformer Power off and disconnect the power cable Replace the A40 board Figure 6 4 Troubleshooting procedure 1 6 10 AFG310 amp AFG320 Service Manual Troubleshooting Continue from previous page Troubleshooting procedure 1
40. 12 0057 01 4 Connector BNC T Male BNC to dual female BNC Tektronix part number Checking Operating Mode 103 0030 00 and Phase 5 N to BNC adapter Male N to Female BNC Tektronix part number Signal Interconnection 103 0045 00 6 Connector Dual Banana Female BNC to dual banana Tektronix part number Various Accuracy Tests 103 0090 00 7 Digital Oscilloscope Over 100 MHz BW Tektronix TDS Checking output signals 8 Frequency Frequency Range 1 Hz to 100 MHz Anritsu MF1603A Checking Frequency Counter Timer Accuracy 5 x 10 5 Accuracy 9 Signal Generator Output Range 0 V to 5 V Tektronix CFG253 Checking Operating Mode Frequency 10 kHz and Phase 10 Digital Multimeter Voltage Range 0 05 V to 5 V Fluke 8842A AFG310 amp AFG320 Service Manual Checking Amplitude and Offset Accuracy 4 5 Performance Verification Output Waveform Test 4 6 Check that the seven types of standard waveforms are output Refer to Table 4 4 for test requirements Table 4 4 Output Waveform Test Requirements Equipment Required One 50 Q terminator Item 1 on page 4 5 Prerequisites The Arbitrary Function Generator must meet the prerequisites listed on page 4 4 One coaxial cable Item 3 on page 4 5 One digital oscilloscope Item 7 page 4 5 1 Connect the function generator to a digital oscilloscope Use a 50 Q coaxial cable to connect to the output of the function generator to 50 terminator the CH1 input of the
41. 50 OHM COAX 20CML 9 1 W PFLTOLA BOTH END A20 J265 A30 J265 USED IN ONLY AFG320 CA ASSY RF 50 OHM COAX 20CML 9 1 W PFLTOLA BOTH END A20 J265 USED IN ONLY AFG310 CA ASSY SP ELEC A10 J100 FLAT FLEX STANDARD ACCESSORIES MANUAL TECH USER ENGLISH VERSION CABLE ASSY PWR 3 18 AWG 92 L SVT TAN 60 DEG C MC 6 3C G X RTANG BME 10A 125V ASSY PWR 3 1 0MM SQ 250V 10A 2 5 METER RTANG IEC320 RCPT EUROPEAN SAFTEY CONTROLLED CA ASSY PWR 3 1 0MM SQ 240V 10A 2 5 METER RTANG IEC320 RCPT X 13A FUSED UK PLUG 13A FUSE U CA ASSY PWR 3 1 0MM SQ 250V 10A 2 5 METER RTANG IEC320 RCPT AUSTRALIA SAFTEY CONTROLLED CA ASSY PWR 3 18 AWG 250 10A 98 INCH L RTANG IEC320 RCPT X STR NEMA 6 15P US SAFTEY CONTROLL CA ASSY PWR 3 0 75MM SQ 250V 10A 2 5 METER RTANG IEC320 RCPT SWISS NO CORD GRIP SAFTEY CONTR OPTIONAL ACCESSORIES MANUAL TECH SERVICE ENGLISH VERSION MANUAL TECH INSTRUCTIONS FOR RACK MOUNT KIT 016 1674 XX AFG300 OP FIELD INSTALLLATION KIT OPTION 1R CA ASSY RF COAXIAL RFD 50 OHM 24 L BNC MALE CABLE INTCON 50 OHM COAX 98 0 CABLE INTCON SHLD CMPST GPIB 2 METER TERMN COAXIAL 50 OHM 2W BNC Mfr Code 0191 0191 0191 0191 80009 0191 0191 0191 0191 211733 1373 2541 1373 211733 53109 0191 0191 0191 06009 TKOBD 00779 24931 Mfr Part Number 174 3934 00 174 3935 00 174 4088 00 174 3936 00 174 2801 00
42. 5102 5103 are located on this board The 5102 5103 is used to switch the transformer winding to the local AC line voltage Fan The DC fan on the rear panel provide forced air cooling for the Arbitrary Function Generator Both AFG310 and AFG320 are portable function generators AFG310 is a single channel and the AFG320 is a dual channel AFG310 amp AFG320 Service Manual 3 3 Theory of Operation 3 4 Floating section The function generator is roughly classified into two sections Floating section All the circuits of the generator except the GPIB communication are contained in this section This includes the AM IN SYNC IN and EXT TRIG IN connectors Earth reference section Only the GPIB communication is contained in this section Control signals such as GPIB and CPU are insulated by optical components AFG310 amp AFG320 Service Manual DUUM Performance Verification Conventions Two types of performance tests can be performed on this product You may not need to perform all of these procedures depending on what you want to accomplish To quickly confirm that the the AFG310 or AFG320 Arbitrary Function Generator is operating properly complete the Se f Test under Brief Proce dures that begins on page 4 2 To further check functionality and proper calibration first complete the Self Test then complete the brief procedures under Calibration Test that begins on page 4 3 Advantages These procedures are quick
43. A TIMELAG IEC AFG310 FUSE CARTRIDGE 3AG 0 5A 250V FAST CAP FUSEHOLDER 3AG FUSES CAP FUSEHOLDER 5 X 20MM FUSES CIRCUIT BD ASSY A60 CH2 REGURATOR AFG320 ONLY Mfr Code 0191 80009 0191 0191 0191 0191 61935 0191 80009 0191 0191 80009 80009 0191 0191 0191 0191 OKB01 OKB01 TK0191 80009 TK0191 80009 TK0191 TK0191 61935 61935 TK0191 Mfr Part Number 671 4455 XX 220 0209 00 120 2003 00 671 4454 348 1587 00 211 0965 00 031 1673 FEU MODEL 211 0965 00 119 6009 00 213 1113 00 129 1493 01 131 6654 00 211 8800 50 119 5862 00 348 1599 00 211 0965 00 220 0194 00 211 0751 00 211 0751 00 671 4456 159 0333 00 163 1103 00 159 0022 01 159 0413 00 159 0417 00 FEK 031 1666 031 1663 671 A508 xx AFG310 amp AFG320 Service Manual Replaceable Mechanical Parts Figure 10 4 Chassis AFG320 10 9 AFG310 amp AFG320 Service Manual Replaceable Mechanical Parts Replaceable Parts List Fig amp Index TektronixPart Serial No Serial No Mfr Number Number Effective Discontd Qty Name 8 Description Code Mfr Part Number 5 1 390 1187 01 1 CABINET STEEL 0191 390 1187 2 211 0960 00 2 SCREW MACHINE M4X10MM L FLH STL MFZN C TK0191 211 0960 00 CROSS REC 3 2 COVER 4 367 0504 00 1 HANDLE CARRYING 268MM L CONTAINS ITEM 0191 367 0504 00 NUMBER 3 ABOVE Figure 10 5
44. Amplitude Ground the TTL level pulse is output Connects the Toggles voltage Modulation AM signal is instrument synchronizing with CH 1 attached power setting between High The input impedance is 10 kW and the maximum input voltage is 10 V DC Peak AC input for CH 1 modulation Figure 2 5 Rear panel 2 14 output The output impedance is 50 cable and Low in the 115 V or 230 V line AFG310 amp AFG320 Service Manual Operating Instructions Input and Output This instrument provides an OUTPUT SYNC OUT TRIGGER EXT IN and Connectors AM IN connector These are floating outputs or floating inputs The note 42 Vpk MAX FLOAT appears on the panel adjacent to each of these connec tors to indicate that they are floating connections For examples of floating connections refer to Appendix C Floating Connections in the AFG310 and AFG320 Arbitrary Function Generators User Manual WARNING To prevent electrical shocks do not apply voltages in excess of 42 Vpk to any BNC connector ground or to the chassis ground All BNC commons must be at the same potential OUTPUT Connector The output connector outputs the waveforms generated by the instrument The AFG310 Arbitrary Function Generator provides a CH1 connector and the AFG320 Arbitrary Function Generator provides a CH1 and a CH2 connector m The output impedance is 50 Q The voltage displayed on the LCD is
45. COAX AWG320 wak s only A20 CH1 amp CONTROL CURN CH1 OUT J480 J990 FAN J100 A10 FRONT PANEL KEY BOARD 2CON FUSE o J250 AC IN J110 3CON N J101 J120 4CON TRANSFORMER A40 POWER SUPPLY L J222 1210 7CON AWG320 only Figure 8 2 Interconnect diagram AFG310 amp AFG320 Service Manual Diagrams 8 4 AFG310 amp AFG320 Service Manual Electrical Parts List The modules that make up this instrument are a combination of mechanical and electrical subparts Therefore all replaceable modules are listed in the Mechani cal Parts List section of this manual AFG310 amp AFG320 Service Manual 9 1 Electrical Parts List 9 2 AFG310 amp AFG320 Service Manual SG Replaceable Mechanical Parts This section contains a list of the replaceable modules for the AFG310 and AFG320 Arbitrary Function Generator Use this list to identify and order replacement parts Parts Ordering Information Part Number Revision Level 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 m Part number m Instrument type or model number m Instrument serial number m Instrument modification number if applicable
46. Environment m Supplying Operating Power m Applying and Interrupting Power Operating Environment The following environmental requirements are provided to ensure proper operation and long instrument life Operating Temperature Operate the AFG310 and AFG320 Arbitrary Function Generator where the ambient air temperature is from 0 C to 50 C Store the instrument in ambient temperatures from 20 C to 60 C After storage at temperatures outside the operating limits allow the chassis to stabilize to a safe operating temperature before applying power CAUTION Damage to the instrument can occur if this instrument is powered on at temperatures outside the usage temperature range AFG310 amp AFG320 Service Manual 2 1 Installation Ventilation Requirements 2 2 The instrument is cooled by air drawn in through the air intakes at the top and exhausted through the rear of the instrument by an internal fan To ensure proper cooling of the instrument verify that the air intake holes on the top of the instrument and exhaust holes on the rear of the instrument are not obstructed Allow at least 5 cm 2 inches of clearance on the top and the rear of the instrument When you install a second instrument above the AFG310 and AFG320 Arbitrary Function Generators leave at least 5 cm 2 inches of clearance between the instruments See Figure 2 1 Allow at least 5 2 inches of clearance between instruments
47. FM 1 Vp p FM modulation output of Sine wave FSK 1 Vp p FSK modulation output of Sine wave frequency alternates between 10 kHz and 100 kHz each 500 ms AM 0 5 Vp p Continuous Sine wave 20 Follow the steps below to check the CH2 modulation output a Remove the BNC cable from connector on the front panel and connect it to the CH2 connector b Press the CH2 button above the BNC connector to set waveform output to on c Press the CH button on the front panel to change the target channel to 2 d Check the modulation of the 2 output using the same procedure described in Step 18 to 19 Note that there is no AM modulation function for the CH2 output This completes the performance verification procedures If you require further assistance contact your nearest Tektronix Service Center 4 28 AFG310 amp AFG320 Service Manual Adjustment Procedures The AFG310 and AFG320 Arbitrary Function Generators do not require any adjustments AFG310 amp AFG320 Service Manual 5 1 Adjustment Procedures 5 2 AFG310 amp AFG320 Service Manual Maintenance This section contains the information needed to do periodic and corrective maintenance on the AFG310 and AFG320 Arbitrary Function Generators The following subsections are included Preparation Introduction plus general information on preventing damage to internal modules when doing maintenance Inspection and Cleaning Information and
48. I Secondary signal level or battery operated circuits of electronic equipment AFG310 amp AFG320 Service Manual 1 11 Specifications Table 1 18 Certifications and compliances cont Category Pollution Degree Standards or description A measure of the contaminates that could occur in the environment around and within a product Typically the internal environment inside a product is considered to be the same as the external Products should be used only in the environment for which they are rated Pollution Degree 2 Normally only dry nonconductive pollution occurs Occasionally a temporary conductivity that is caused by condensation must be expected This location is a typical office home environment Temporary condensation occurs only when the product is out of service Conditions of Approval Safety Certifications Compliances are made for the following conditions Temperature operation 5 C to 40 C Altitude maximum operation 2000 meters IEC Characteristics Equipment type Test and Measuring Installation Category as defined in IEC 61010 1 Annex J Pollution Degree 2 as defined in IEC 61010 1 Safety Class as defined in IEC 61010 1 Annex H AFG310 amp AFG320 Service Manual i Installation This subsection describes the installation environmental requirements and information on how to power on and off The information describes the following items m Operating
49. Instructions 2 11 Controls and Connectors 2 202 205 555 Hx e rr Sy ETUR 2 12 Basic Men Operations so he he ena awa ua Sa aaa 2 16 Theory of Operation Module Overview i2 tope m ra UR REA deve es AREE 3 1 Performance Verification Conventions feb ees Bi tae eh ew ee IE NEP RN atlas 4 1 Brief Procedures 5 50 4l 4 2 Performance Tests iios ebbe IEEE 4 4 Prerequisites c hae ebb TOS AT ERES 4 4 Equmpment Required 25 2595 ee bebe ee ned eed ee 4 5 Output Waveform Test 4 6 Frequency Accuracy Test ser oiiro REOR REDE ELEM REUS ER ned 4 9 Amplitude Accuracy Test z s RE RES behead ee 4 11 DC Voltage Accuracy Test ecce CERTES PES 4 16 Operating Mode and Phase Test 4 18 Modulation Function 4 26 Adjustment Procedures AFG310 amp AFG320 Service Manual i Table of Contents Maintenance 5 655 ore ors ids RR RU REIR 6 1 Related Maintenance Procedures 6 1 Preparation ed 6 2 Inspection and Cleaning 5 close ne wasa esr ed 6 4 Troubleshooting 2 ze
50. Less than 1 us with sine wave Trigger Holdoff Restriction Holdoff Time Standard Waves except phased 5 us maximum Square User Waveforms Edit Waveform Square Wave at Phase z 0 5 us maximum 1 5 cycles Table 1 12 Isolation Name Description Isolation 42 Vpk maximum relative to earth ground Table 1 13 Display Name Description Display LCD 20 Characters x 2 Lines 1 8 AFG310 amp AFG320 Service Manual Specifications Table 1 14 AC Line Power Name Description Line Frequency Range 90 V to 250 V AC 48 0 Hz to 63 0 Hz 90 V to 127 V AC 48 0 Hz to 440 Hz Maximum Power Consumption 70 W Maximum Current 2A Line Voltage Range Cat Il 115 High 108 V to 132 V AC Low 90 V to 110 VAC 230 V High 216 V to 250 V AC Low 180 V to 220 V AC Fuse Rating 1 A Fast 250 V UL 198G 3 AG 0 5 A T 250 V IEC 127 Mechanical Characteristic Table 1 15 Mechanical Name Description Weight Standard 5 4 kg AFG310 5 6 kg AFG320 Dimensions Height 99 mm 3 9 in with the feet Width 214 mm 8 4 in Depth 411 mm 16 2 in AFG310 amp AFG320 Service Manual Specifications Environmental Table 1 16 Environmental Name Description Atmospherics Temperature Operating 0 C to 50 C Nonoperating 20 C to 60 C Relative humidity Operating 0 to 95 at or below 40 C Operating 0 to 75 40 C to 50 C Altitude Operating Up to 4 5 km 15 000 4 Maximum operating tem
51. M CONFIGURATION SERIAL BUS STATUS Diagnostics Is CH1 signal No Is No output normal F265 on A20 blown Yes Yes Replace F265 on A20 Is this the AFG320 Yes Is CH2 signal No Is No output normal F265 on the A30 blown Yes Yes Replace F265 Figure 6 6 Troubleshooting procedure 3 6 12 Power off and disconnect the power cable Replace A20 Power off and disconnect the power cable Replace A30 Power off and disconnect the power cable Replace A20 Power off and disconnect the power cable Replace A20 Power off and disconnect the power cable Replace A30 AFG310 amp AFG320 Service Manual Connect the generator to the correct power source Press the POWER SWITCH to ON Possible defective board After board replacement calibrate according to section 4 of this manual Troubleshooting J480 FAN Ya J600 GPIB J990 SYNC OUT A20 MAIN J800 TRIG IN F271 Spare for F265 J200 AM IN F265 lt 9 J265 SIGNAL OUT Figure 6 7 Connector location of A20 and A30 Board AFG310 amp AFG320 Service Manual A30 CH2 AFG320 only F271 Spare for F265 F265 lt J265 SIGNAL OUT CH2 6 13 Troubleshooting 10 FRONT PANEL
52. M menu SELF TEST item Instrument calibration is not performed at power on unless an error is found in the internally stored calibration data Use the SYSTEM menu self test and calibration items for more thorough self testing and calibration This instrument uses flash memory as its internal nonvolatile memory After this memory has been written about 1000 times the instrument rewrites the whole chip This provides wear leveling distributed writing and periodic deletion re writing The infrequent memory rewrite cycle increases the time required between power on and the point the instrument can be used by about ten seconds AFG310 amp AFG320 Service Manual 6 9 Troubleshooting Troubleshooting Tree Connect the generator to the correct Remove the generators cabinet And connect the generator to the power source Press the POWER correct power source Press the POWER SWITCH to ON Check AC SWITCH to ON on the front panel voltages of secondary output connectors J210 of power transformer Pin No Cable colors Voltage J210 1 Yellow About 20VAC between J210 1 and J210 2 Power off J210 2 White About 20VAC between J210 2 and J210 3 and disconnect the ps UR About 40VAC between J210 1 and J210 3 power cable Check for blown K E ue the AC fuses Check AC line select J210 5 About 9 2VAC between J210 4 and 4210 5 switch on the generator for J210 6 Brown About 9 2VAC between J210 6 and J210 7 correct settings J2
53. N on the front panel is passed through the comparator and then sent to the Address Decoder amp Trig Clock Control circuit The main board 20 is the core of the function generator It contains major parts of the signal generators including digital circuits such as CPU DDS Waveform memory and D A and Analog circuits such as Filter output AMP and Offset circuit CPU and Address Decoder amp Trig Clock Control 42 9 MHz clocks are supplied from the crystal oscillator to the Address Decoder amp Trig Clock Control to conduct major control as a function generator together with the CPU Analog output circuit Each analog waveform signal is put at the desired output level including an offset by the Analog Output circuit consisting of an amplifier an attenuator and an offset circuit Timing amp Memory Address Control The Timing amp Memory Address Control provided for each channel controls output waveforms Also the waveform from the SYNC Out on the rear panel is generated by the circuit on the side Sine waveform generation DDS Sine waveform is generated by DDS Direct Digital Synthesis from the crystal oscillator s clock 42 9 MHz according to the data of the Sequence Memory and then is passed through the 20 MHz Elliptical Filter Square waveform generation Since Square converter Square waveform is generated by the Sine Square converter Standard waveform except sine and square generation The Standard wavef
54. Service Manual Tektronix AFG310 and AFG320 Arbitrary Function Generator 071 0176 50 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 Japan Ltd All rights reserved Copyright Tektronix Inc All rights reserved Tektronix products are covered by U S and foreign patents issued and pending Information in this publication supercedes that in all previously published material Specifications and price change privileges reserved Tektronix Japan Ltd 5 9 31 Kitashinagawa Shinagawa ku Tokyo 141 0001 Japan Tektronix Box 500 Beaverton OR 97077 TEKTRONIX and TEK are registered trademarks of Tektronix Inc WARRANTY Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship for a period of three 3 years from the date of shipment If a product proves defective during this warranty period Tektronix at its option either will repair the defective product without charge for parts and labor or will provide a replacement in exchange for the defective product 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 fo
55. 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 quM A AO Table of Contents General Safety Summary 0 vii Service Safety Summary ix Ferace C xi ItrOdUCHOD Specifications Product Overview 55 1 1 vec Cte ie Eu da ee bes 1 1 Sp cifications esce seh tre es bg eee S Rh e a 1 3 Electrical Characteristic 1 3 Mechanical Characteristic 1 9 Environmental ete 1 10 Certification and Compliances 1 11 Operating Information Installation 3 2 ack na ER He nee seen KOR 2 1 Operating Environment 2 2 or oe EE EQ ay RES dS 2 1 Supplying Operating 1 2 3 Applying and Interrupting Power 2 8 Repackaging Instructions 1 2 9 Operating
56. Troubleshooting procedure 2 6 11 Figure 6 6 Troubleshooting procedure 3 6 12 Figure 6 7 Connector location of A20 and A30 Board 6 13 AFG310 amp AFG320 Service Manual Table of Contents Figure 6 8 Connector location of 10 and A40 Board 6 14 Figure 8 1 Block diagram 8 2 Figure 8 2 Interconnect diagram 8 3 Figure 10 1 Front Panel AFG310 10 4 Figure 10 2 Front Panel AFG320 10 5 Figure 10 3 Chassis AFG310 10 7 Figure 10 4 Chassis AFG320 10 9 Ficure 10 5 Cabinet aed sieges 10 10 Figure 10 6 Final AFG320 10 11 AFG310 amp AFG320 Service Manual Table of Contents 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 Table 1 13 Table 1 14 Table 1 15 Table 1 16 Table 1 17 Table 1 18 Table 2 1 Table 2 2 Table 2 3 Table 2 4 Table 2 5 Table 2 6 Table 2 7 Table 2 8 Table 4 1 Table 4 2 Table 4 3 Table 4 4 Table 4 5 Table 4 6 Table 4 7 Table 4 8 AFG310 amp AFG320 Service Manual Operating Mode 1 3 Burst Count
57. Vrms 2 501 Vrms 2 449 Vrms a Set the range of the digital multimeter to AC 2 V LCD Display in AMPL Column 5 000 Vp p 3 500 Vp p 2 500 Vp p Amplitude Range 1 787 Vrms 1 749 Vrms 1 251 Vrms 1 224 Vrms 0 8944 Vrms 0 8733 Vrms 1 750 Vp p 1 000 Vp p 0 700 Vp p 0 6266 Vrms 0 6108 Vrms 0 3588 Vrms 0 3483 Vrms 0 2517 Vrms 0 2433 Vrms AFG310 amp AFG320 Service Manual Performance Verification b Set the range of the digital multimeter to AC 200 mV LCD Display in AMPL Column 0 500 Vp p 0 350 Vp 9 Amplitude Range 0 1803 Vrms 0 1733 Vrms 0 1267 Vrms 0 1208 Vrms 0 250 Vp p 0 125 Vp p 0 100 Vp p 0 09103 Vrms 0 08574 Vrms 0 04640 Vrms 0 04199 Vrms 0 03747 Vrms 0 03324 Vrms 0 050 Vp p 0 01962 Vrms 0 01574 Vrms 7 Change the output waveform to SQUA square Set the controls of the function generator to AMPL item Press the buttons on the front panel in the following order FUNC gt gt ENTER gt AMPL 8 Check that the amplitude for the square waveform is within the range listed in following tables Use the numeric keys and unit keys to change the amplitude of the function generator LCD Display in AMPL Column 0 050 Vp p 0 100 Vp p 0 125 Vp p 0 250 Vp p Amplitude Range 0 02775 Vrms 0 02225 Vrms 0 05300 Vrms 0 04700 Vrms 0 06562 Vrms 0 05938 Vrms 0 1287 Vrms 0 1213 Vrms 0 350 Vp p AFG310 amp
58. amp 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 AFG310 amp AFG320 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 AN WARNING Protective Ground CAUTION Double High Voltage Earth Terminal Refer to Manual Insulated AFG310 amp AFG320 Service Manual mu s 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
59. ance limits this specification are valid with these conditions m The function generator must have been calibrated adjusted at an ambient temperature between 20 and 30 m The function generator must be in an environment with temperature altitude humidity and vibration within the operating limits described in these specifications m The function generator must have had a warm up period of at least 20 minutes m The function generator must be operating at an ambient temperature between 10 C and 40 C Electrical Characteristic Table 1 1 Operating Mode Description Continuous Generates the waveform continuously Triggered Output quiescent until triggered by an external GPIB or manual trigger then generates a waveform only one time Burst Output quiescent until triggered by an external GPIB or manual trigger then generates waveform predefined count Table 1 2 Burst Count Name Description Burst Count 1 to 60 000 or Infinite Sine or square wave output will stop 100 seconds after the output starts even if the specified burst count has not been reached Resolution 1 AFG310 amp AFG320 Service Manual 1 3 Specifications Table 1 3 Waveforms Name Standard Waveforms Description Sine Square Triangle Ramp Pulse Noise DC Arbitrary Waveforms Point Length 10 to 16384 Vertical Resolution 12 bits Number of Waveforms 4 Table 1 4 Frequency Name Description Frequ
60. artment using low temperature 125 F to 150 F circulating air Lubrication There is no periodic lubrication required for this function generator AFG310 amp AFG320 Service Manual Troubleshooting Power on Diagnostics This subsection contains information and procedures designed to help you isolate faulty modules in the AFG310 and AFG320 Arbitrary Function Generators This subsection consists of the following descriptions m Diagnostics m Figure 6 6 Primary Troubleshooting Procedure The AFG310 and AFG320 Arbitrary Function Generators has power on diagnostics that focus on verifying and if needed for isolating faulty modules Prerequisites Power on the AFG310 and AFG320 Arbitrary Function Genera tors NOTE Allow a 20 minute warm up for the instrument to operate at its optimum precision 1 Push the front panel switch labeled POWER to power on the instrument See Figure 6 1 Make sure that the fan is turning i ARBITRARY Tektronix AFG320 FUNCTION GENERATOR FUNC FREQUENCY Hz JL AMPL V PARAMETER SAVE SH FT OFFSET V PHASE DEG see em TRIGGER 10810912 u CURSOR 4 5 6 J y SELECT DOA jc 49 MENU 42 Vpk MAX FLOAT 500 Vpk MAX FLOAT TTL POWER Sw
61. ck is recommended after module replacement If the AFG310 and AFG320 Arbitrary Function Generator does not meet performance criteria repair is necessary Before You Begin To prevent personal injury or damage to the AFG310 and AFG320 Arbitrary Function Generators do the following tasks before you attempt to service m Be sure you are a qualified service person m Read the General Safety Summary and the Service Safety Summary beginning on page vii m Read the Operating Information section When using this manual for servicing be sure to follow all warnings cautions and notes xvi AFG310 amp AFG320 Service Manual Introduction Contacting Tektronix Phone Address Web site Sales support Service support Technical support 1 800 833 9200 Tektronix Inc Department or name if known 14200 SW Karl Braun Drive P O Box 500 Beaverton OR 97077 USA www tektronix com 1 800 833 9200 select option 1 1 800 833 9200 select option 2 Email techsupport tektronix com 1 800 833 9200 select option 3 1 503 627 2400 6 00 a m 5 00 p m Pacific time This phone number is toll free in North America After office hours please leave voice mail message Outside North America contact a Tektronix sales office or distributor see the Tektronix web site for a list of offices AFG310 amp AFG320 Service Manual xvii Introduction xviii AFG310 amp AFG320 Service Manual Product Overvi
62. digitizing oscilloscope Refer to Figure 4 1 Digital Oscilloscope AFG320 c loce loo 1012 eeesall m S CH1 50 Q Coaxial Cable Figure 4 1 Initial Test Hookup AFG310 amp AFG320 Service Manual Performance Verification 2 Set the oscilloscope controls by selecting the function and settings in Table 4 5 Table 4 5 Oscilloscope settings Function Setting CH 1 Vertical Coupling DC Scale 0 2V DIV Input Impedance 1 MQ Horizontal Sweep 10 us DIV Trigger Source CH 1 Coupling DC Slope Positive Level 500 mV Mode Auto 3 Select INITIALIZE in the SYSTEM menu on the function generator Press the front panel buttons in the following order SHIFT PHASE gt lt button until INITIALIZE is displayed gt ENTER 4 Setthe CHI and CH2 frequencies to 20 kHz then set the controls of the function generator to FUNC for both CH1 and CH2 Press the front panel buttons in the following order FREQ gt 2 gt 0 gt kHz ms mV CH gt FREQ gt 2 gt 0 gt kHz ms mV FUNC CH gt FUNC AFG310 amp AFG320 Service Manual 4 7 Performance Verification 5 Press the CH1 OUTPUT to set the waveform output to on NOTE To change the waveform on the function generator place the cursor on the name of the waveform in the FUNC item and press the button Whe
63. e is only one step Some instruction steps have substeps listed in alphabetical order When steps require that you make a sequence of selections using front panel buttons an arrow marks each transition between front panel buttons CH FUNC gt gt to display TRIA Using the convention just described results in instructions that are graphically intuitive and simplifies the procedures For example the instruction just given replaces these three steps 1 2 Press the front panel button CH Press the front panel button FUNC Repeatedly press the front panel button until TRIA is displayed on the LCD liquid crystal display AFG310 amp AFG320 Service Manual Preface Default Model This manual also shows instrument setups using tables For example the Operating Information section uses tables to show specific setups The header of each table contains names of button groups that represent the controls menus and items used to set up the instrument To make a specific setup read the table from left to right and then from top to bottom as shown below The table contains the symbol if no action is required Control Button Or Numeric Input Key Main Button First Level in the Menu Layers Second Level in the Menu Layers 1 Press the Menu 2 Press the lt or gt button several times 4 For the selection press the A or v or the Item But to display the desired item button several ti
64. ency Range Operating Mode Frequency Range Sine Square Continuous Mode 10 mHz to 16 MHz Triggered Burst Mode 10 mHz to 1 MHz Triangle Ramp Pulse 10 mHz to 100 kHz Noise 5 MHz Bandwidth at 16 MS s Megasamples Second User Waveforms Edit Waveform Frequency Resolution Frequency Accuracy Table 1 5 Amplitude Name Amplitude Range Resolution Accuracy Impedance 1 4 10 mHz to 1 6 MHz 10 mHz or 7 digits 50 ppm Description 505 to 10 Vp p into 50 Q The absolute peak amplitude plus the offset is limited to 5 Vor 5 V 50 mV to 500 into 50 Q 5 mV t 1 96 of Amplitude 5 mV at 1 kHz with no offset 50 Q AFG310 amp AFG320 Service Manual Specifications Table 1 6 Offset Description Amplitude Range Offset Range Range 505 MVp p to 10 Vp p The absolute peak amplitude plus the offset is limited to 5 V or 5 V into 50 50 mVp p to 500 0 75 V to 0 75 V into 50 Resolution 5 mV Accuracy t 1 96 of Offset 5 mV Table 1 7 Phase Name Phase Range Sine Square Triangle Ramp Pulse User Waveforms Edit Waveform Phase Resolution Sine Square Triangle Ramp Pulse User Waveforms Edit Waveform Offset Phase Accuracy typical Sine Wave Amplitude 1 V No Offset at Phase 0 Description Operating Mode and Output Frequency Phase Range Continuous Mode 360 Triggered Burst f lt 100 kHz 360 T
65. eration contains circuit descriptions that support service to the module level Performance Verification contains procedures for confirming that the function generator functions properly and meets warranted limits Adjustment Procedures contains a statement explaining that adjustment is unnecessary for the function generator Maintenance contains information and procedures for performing preventive and corrective maintenance of the function generator These instructions include cleaning and fault isolation to the module Options contains information on servicing factory installed options Electrical Parts List contains a statement referring you to Mechanical Parts List where both electrical and mechanical modules are listed Diagrams contains block diagrams and an interconnection diagram Mechanical Parts List includes a table of all replaceable modules their descriptions and their Tektronix part numbers AFG310 amp AFG320 Service Manual xi Preface Manual Conventions 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 conven tions Names appear in the same case all uppercase and the same abbreviation as is used on the Arbitrary Function Generator front panel buttons and menus Instruction steps are numbered The number is omitted if ther
66. erscore cursor will appear either in the item to the left of the colon or in the selection area or a numerical value to the right of the colon For menus with only one item the cursor will be displayed immediately at the selection or numeric value The procedure from this point will depend on whether the cursor is displayed to the left or right of the colon m If the cursor is displayed on the item to the left of the colon proceed to Step 2 m If the cursor is displayed in the selection area or number to the right of the colon proceed to Step 3 or press the EXIT CANCEL button to go to the item selection level and then proceed to Step 2 AFG310 amp AFG320 Service Manual 2 19 Operating Instructions 2 Use the lt and gt buttons to change items until the desired item is displayed Then confirm the selected item with the ENTER button The cursor moves to selection or numeric value to the right of the colon 3 Enter the numeric value or make the selection m Numeric values can be changed with the and v buttons Alternatively the value can be entered with the numeric keys and confirmed by pressing a unit key or the ENTER button m Use the and v buttons to change a selection Confirm the selection with the ENTER button Prior to confirmation when the block cursor is blinking numeric values and selections can be restored to their original states by pressing the CANCEL button 4 Press the EXIT CANCEL button
67. ervice 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 Connect and Disconnect Properly Do not connect or disconnect probes or test leads while they are connected to a voltage source Ground the Product This product is grounded through the grounding conductor of the power cord To avoid electric shock the grounding conductor must be connected to earth ground Before making connections to the input or output terminals of the product ensure that the product is properly grounded Observe All Terminal Ratings To avoid fire or shock hazard observe all ratings and markings on the product Consult the product manual for further ratings information before making connections to the product The common terminal is at ground potential Do not connect the common terminal to elevated voltages Do not apply a potential to any terminal including the common terminal that exceeds the maximum rating of that terminal Do Not Operate Without Covers Do not operate this product with covers or panels removed Use Proper Fuse Use only the fuse type and rating specified for this product 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 D
68. et waveform output to on 5 Check the frequencies or periods listed in the tables below a Usethe numeric keys and unit keys to change the frequency of the function generator LCD Display in FREQ Column Frequency Range 16 000 00 MHz 16 000 800 MHz 15 999 200 MHz 100 000 0 kHz 100 005 0 kHz 99 995 0 kHz b Change the measurement mode of the frequency counter to counter timer and check the period LCD Display in FREQ Column Frequency Range 1 000 00 kHz 1 000 050 ms 0 999 950 ms 1 000 00 Hz 1 000 050 s 0 999 950 s 6 Follow the steps below to check the CH2 frequency accuracy a Remove the BNC cable from the CH1 connector on the front panel and connect it to the CH2 connector b Press the CH2 button to set waveform output to on c Press the CH button on the front panel to change the target channel to CH2 d Check the CH2 output frequency accuracy using the same procedure described above in Step 5 4 10 AFG310 amp AFG320 Service Manual Performance Verification Amplitude Accuracy Test Check the amplitude accuracy of the output waveform Refer to Table 4 8 for test requirements Table 4 8 Amplitude Accuracy Test Requirements Equipment Required Prerequisites One 50 Q precision terminator Item 2 The Arbitrary Function Generator must meet the on page 4 5 prerequisites listed on page 4 4 One coaxial cable Item 3 page 4 5 One dual banana connector Item 6 page 4 5 One digital
69. eventing ESD Before servicing this product read the Safety Summary and Introduction at the front of the manual and the ESD information below CAUTION Static discharge can damage any semiconductor component in this generator When performing any service which requires internal access to the AFG310 and AFG320 Arbitrary Function Generators adhere to the following precautions to avoid damaging internal modules and their components due to electrostatic discharge ESD m Minimize handling of static sensitive modules m Transport and store static sensitive modules in their static protected containers or on a metal rail Label any package that contains static sensitive modules m Discharge the static voltage from your body by wearing a grounded antistatic wrist strap while handling these modules Do service of static sensitive modules only at a static free work station m Nothing capable of generating or holding a static charge should be allowed on the work station surface m Handle circuit boards by the edges when possible m Do not slide the modules over any surface m Avoid handling modules in areas that have a floor or work surface covering capable of generating a static charge AFG310 amp AFG320 Service Manual Maintenance Susceptibility to ESD Table 6 1 lists the relative susceptibility of various classes of semiconductors Static voltages of 1 kV to 30 kV are common in unprotected environments Table 6 1 Rela
70. ew The Arbitrary Function Generators are portable waveform generators equipped with both arbitrary waveform editing functions and standard waveform generator functions The AFG310 Arbitrary Function Generator is a single channel output model and the AFG320 Arbitrary Function Generator is a two channel output model Main Features Following are the main features of the AFG310 Arbitrary Function Generators Seven types of standard function waveforms Sine Square Triangle Ramp Pulse DC and Noise Maximum output frequency is 16 MHz 50 Q impedance floating output Three operating modes Continuous Triggered and Burst Four types of modulation functions Sweep function FM modulation FSK modulation and AM modulation Creating and editing waveforms by edit functions and equipped with four user waveform memories 20 setup memories Saving and recalling setup in the memory step recall mode is selectable for recalling A standard GPIB interface that controls the instrument through the interface and imports waveforms from other instruments AFG310 amp AFG320 Service Manual 1 1 Product Overview 1 2 AFG310 amp AFG320 Service Manual eee Specifications This section contains the AFG310 and AFG320 Arbitrary Function Generator specifications All specifications are guaranteed unless labeled typical Typical specifications are provided for your convenience but are not guaranteed Performance Conditions The perform
71. f internal calibration 1 Select the CALIBRATION item in the SYSTEM menu Do the following procedure SHIFT PHASE lt button until CALIBRATION is displayed ENTER 2 Press ENTER button to execute calibration The message CALIBRATING is displayed in the first line of the LCD during calibration NOTE Do not turn off the power while CALIBRATING is displayed If the power is turned off while the message is displayed data stored in internal nonvolatile memory may be lost 3 Wait until the calibration is completed When an error is detected during calibration execution the instrument displays the name of that calibration item If multiple errors were detected the calibration item names can be viewed using the v and buttons Press the front panel EXIT CANCEL button to exit from the error display state 4 Verify passing of the internal calibration If the calibration completes without finding any problems the display returns to its state before the calibration was executed 5 Return to regular service Press EXIT CANCEL button until the default display is obtained AFG310 amp AFG320 Service Manual 4 3 Performance Verification Performance Tests 4 4 Prerequisites This section contains the following procedures for checking that the Arbitrary Function Generator performs as warranted Output Waveform Checks Frequency Accuracy Checks Amplitude Accuracy Checks DC Voltage Accu
72. ge ranges and the switch settings for those ranges is shown in Table 2 4 Refer to Figure 2 2 for the switch locations Table 2 4 Voltage ranges and switch settings Voltage Range 90 110 V 108 V 132 V 180 V 220 V 216 V 250 V 115 V 230 V Voltage Switch Midi 115V High Low Range Switch iki Low 230 V 230 V 230V 115V 115V 115V High High High Low Low 2 Low AFG310 amp AFG320 Service Manual Installation Power Cord Information power cord with the appropriate plug configuration is supplied with each AFG310 and AFG320 Arbitrary Function Generator Table 2 5 gives the color coding of the conductors in the power cord If you require a power cord other than the one supplied refer to Table 2 6 Power Cord Identification Table 2 5 Power cord conductor identification Conductor Color Alternate Color Ungrounded Line Black Grounded Neutral Light Blue White Grounded Earth ground Green Yellow Green Table 2 6 Power cord identification Plug Configuration Normal Usage Option Number North America Standard 125V Europe Al 230 V United Kingdom 230 V Australia 230 V North America 230 V Switzerland 230 V AFG310 amp AFG320 Service Manual 2 7 Installation Applying and Interrupting Power Consider the following information when you power on
73. he cloth or applica tor 1 Remove loose dust on the outside of the instrument with a lint free cloth 2 Remove remaining dirt with a lint free cloth dampened in a general purpose detergent and water solution Do not use abrasive cleaners 3 Clean the monitor screen with a lint free cloth dampened with either ethyl alcohol or preferably a gentle general purpose detergent and water solution Inspection Interior Inspect the internal portions of the generator for damage and wear using Table 6 3 as a guide Defects found should be repaired immediately CAUTION To prevent damage from electrical arcing ensure that circuit boards and components are dry before applying power to the function generator Table 6 3 Internal inspection check list Item Circuit boards Resistors Inspect for Loose broken or corroded solder connections Burned circuit boards Burned broken or cracked circuit run plating Burned cracked broken blis tered condition Repair action Remove failed module and replace with a new module Remove failed module and replace with a new module Solder connections Capacitors Semiconductors Wiring and cables Chassis AFG310 amp AFG320 Service Manual Cold solder or rosin joints Damaged or leaking cases Corroded solder on leads or terminals Burned cracked broken condi tion Loosely inserted in sockets Distorted pins Loose plugs or connecto
74. hr ehem Ret pee dee eee 6 7 Poweron Diagnostics wei sede ee eR E RES RAE IRURE RE bos 6 7 Options and Accessories Options and Accessories 7 1 OPUONS cap y S 7 1 Standard ACCOSSOFIeS poari GCUPPRS ieee ade ee I EP eke 7 2 Optional Accessories Pepe po 7 2 Diagrams Electrical Parts List Mechanical Parts List Replaceable Mechanical Parts 10 1 Parts Ordering Information 1 10 1 Using the Replaceable Parts 180 10 2 ii AFG310 amp AFG320 Service Manual Table of Contents List of Figures Figure 2 1 Cooling for rackmounted instrument s 2 2 Figure 2 2 Rear Panel Controls 2 4 Figure 2 3 POWER switch 2 8 Figure 2 4 Front panel controls 2 12 Figure 2 5 Rear panel 2 14 Figure 2 6 Default 2 17 Figure 2 7 Menu item display 2 18 Figure 2 8 Item buttons and main menu buttons 2 18 Figure 2 9 Display example for a main menu selected 2 19 Figure 2 10 Display example for a numeric item selected 2 2
75. ification AFG320 Figure 4 13 Initial Test Hookup 50 Q Coaxial Cable CH1 Digital Oscilloscope 0 S o 000 50 Termination 15 Set the oscilloscope controls as shown in Table 4 14 Table 4 14 Oscilloscope settings Function CH 1 Vertical Coupling Scale Input Impedance Horizontal Sweep Trigger Source Coupling Slope Level Mode Setting DC 0 2 V DIV 1 MQ 20 us adjust for best display CH 1 DC Positive 100 mV Auto 16 Select INITIALIZE in the SYSTEM menu on the function generator to initialize the system Press the buttons on the front panel in the following order SHIFT PHASE lt button until INITIALIZE is displayed ENTER ENTER 17 Press the CH1 button above the BNC connector to set the waveform output to on 18 Press MODUL button on the front panel AFG310 amp AFG320 Service Manual 4 27 Performance Verification 19 Change the modulation type and check the modulation output listed in the table below To change the modulation type on the function generator place the cursor on the name of the modulation in the MODUL item and press the button When the name of the desired modulation appears press the ENTER button to confirm the selection LCD Display in MODUL Column Modulation Output Description SWP 1 Vp p Sweep output of Sine wave
76. itch Figure 6 1 POWER switch AFG310 amp AFG320 Service Manual 6 7 Troubleshooting 6 8 2 Check the results of the startup self test Power on tests occur automatically each time you power on the instrument See Figure 6 2 for the LCD display Type of Instrument Func diem JUL AMwPL D m cs gt gt gt AFG320 lt lt lt Jl CH2 VERSION 1 0 __ MopE wogur Hase DeG Version Number Figure 6 2 The LCD Display at Power On The system continues to the default display after the start up tests are complete If an error is detected an error message is displayed on the first line and the test item is displayed on the second line See Figure 6 3 When multiple errors are detected use the v and buttons to scroll through the failed test items Although you can clear the error display state and use the instrument the waveform output will not be reliable until you resolve the errors L FREQUENCY Hz AMPL V SELF TEST ERROR Error Message IL cH2 CH1 WAVEFORM MEMORY Failed Test Item OFFSET V MODE MODUL PHASE DEG Figure 6 3 The LCD display when an error is found To exit the error display press the CANCEL EXIT button AFG310 amp AFG320 Service Manual Troubleshooting NOTE The power on self test consists of a subset of the tests performed by the SYSTE
77. ment 1 rrr RR RR teh 850 4 5 Output Waveform Test Requirements 4 6 Oscilloscope settings 4 7 AFG320 Output Waveform 4 8 Frequency Accuracy Test Requirements 4 9 Amplitude Accuracy Test Requirements 4 11 Table of Contents vi Table 4 9 DC Voltage Accuracy Test Requirements 4 16 Table 4 10 Operating Mode and Phase Test Requirements 4 19 Table 4 11 Oscilloscope settings 4 19 Table 4 12 Signal generator settings 4 21 Table 4 13 Modulation Function Test Requirements 4 26 Table 4 14 Oscilloscope settings 4 27 Table 6 1 Relative susceptibility to static discharge damage 6 3 Table 6 2 External Inspection Check List 6 4 Table 6 3 Internal inspection checklist 6 5 Table 7 1 Options 42455405 m toa loeb 7 1 Table 7 2 Standard accessories 7 2 Table 7 3 Optional accessories 7 2 AFG310 amp AFG320 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 s
78. mes to display the ton on the front desired selection panel 3 Press the ENTER button to confirm 5 Press the numeric keys to input your selection value 6 Press the ENTER or the Unit button to confirm your selection or _ 10 11 12 Press the EXIT button to move to the upper level in the menu layer 13 Press the EXIT button to move to the default display gt Tektronix AFG320 MACRON cenenaron FREGUENCWWE na PARAMETER se recut Main Buttons OUTPUT TRIGGER 7 s 4 C5 Cs 2 L3 CA Hi si V Numeric Input Keys Control Buttons This manual documents the AFG310 and AFG320 Arbitrary Function Genera tors However the AFG320 Arbitrary Function Generator display liquid crystal AFG310 amp AFG320 Service Manual xiii Preface Modules Safety Related Manuals xiv display appears as the default display whenever a display is illustrated in this manual Throughout this manual any replaceable component assembly or any part of the AFG310 and AFG320 Arbitrary Function Generators is referred to as a module In general a module is an assembly like a circuit board rather than a component like a resistor or an integrated ci
79. n the name of the desired waveform appears press the ENTER button to confirm the selection 6 Change the waveform in the FUNC column on the LCD display 7 Check the output waveform listed in the Table 4 6 Table 4 6 AFG320 Output Waveform LCD Display in FUNC Column Output Waveform Description SINE 2 Cycles in 10 divisions Continuous Sine wave SQUA 2 Cycles in 10 divisions Continuous Square wave TRIA 2 Cycles in 10 divisions Continuous Triangle wave RAMP 2 Cycles in 10 divisions Continuous Ramp wave PULSE 2 Cycles in 10 divisions Continuous Pulse wave with 50 duty ratio a Change the duty ratio of Pulse wave for 75 SHIFT gt FUNC gt 7 gt 5 gt ENTER PULSE 2 Cycles in 10 divisions Continuous Pulse wave with 75 duty ratio b Select the DC waveform and then change the DC offset to 0 5 V FUNC gt gt ENTER gt OFFSET gt 0 gt 5 gt Hz s V DC 0 5 V DC c Change the DC offset back to 0 V and then select the noise waveform 0 gt 2 5 gt FUNC gt gt ENTER NOISE Continuous Noise wave 4 8 AFG310 amp AFG320 Service Manual Performance Verification 8 Follow the steps below to check the function generator output waveforms a Remove the BNC cable from CH1 connector on the front panel and connect it to the CH2 connector b Press the CH2 button to set waveform output to on c Press the CH button to change the target channel to CH2 d Check
80. or Setting the Menu Items Follow the steps below for setting the menu items 1 Select the desired item using the front panel item buttons Depending on the item selected the underscore cursor will be displayed at either the numeric value or at the selection on the LCD display AFG310 amp AFG320 Service Manual Operating Instructions 2 Enter the numeric value or make the selection m Numeric values can be changed with the and v buttons Alternatively the value can be entered with the numeric keys and confirmed by pressing a unit key or the ENTER button m Use the and v buttons to change a selection Confirm the selection with the ENTER button Prior to confirmation when the block cursor is blinking numeric values and selections can be restored to their original states by pressing the CANCEL button Operation for the Main Menus Follow the steps below for main menu operation 1 Select the desired menu using the front panel menu buttons One of the items included in the selected menu will appear to the left of the colon in the second row on the LCD screen and one numeric value or selection for that item is displayed to the right of the colon See Figure 2 9 Func FREQUENCY Hz JU U AMPL V SINE 100 0000k 1 000 Cuso FM FREQ 10 00k 1 f J Menu Item Numeric Value or Selection Figure 2 9 Display example for a main menu selected The und
81. or power off the instrument or when external power loss occurs CAUTION You can not power on the instrument when the ambient temperature N exceeds the instrument temperature operation range Wait until the instrument cools down or the ambient temperature decreases to a valid operating tempera tures before turning on the instrument again Power On The LCD display is blank when the instrument is turned off Push the front panel switch labeled POWER to power on the instrument See Figure 2 3 Make sure that the fan is turning Tektronix A FG 3 2 0 FUNCTION EN ERATOR BOTH SYSTEM FUNC FREQUENCY Hz PARAMETER SAVE SH FT OFFSET MODUL PHASE DEG ane we Do e OUTPUT TRIGGER lt 2n uwa EXIT CURSOR 5 6 e kte ns nV SELECT 21 3 He s V ENTER J J tU j 42 Vpk MAX FLOAT 500 42 Vpk FLOAT TTL POWER Switch Figure 2 3 POWER switch 2 8 AFG310 amp AFG320 Service Manual Installation Self Test Check the results of the startup self test Power on tests occur automatically each time you power on the instrument If an error is detected an error message is displayed Refer to Diagnostics on page 6 7 for detail Power Off power off the instrument
82. orms Triangle Ramp Pulse and Noise are generated via the 5 MHz Elliptical Filter by sending to the 12 bit D A the data read from waveform memory Clock is supplied from the Sine Square converter DC waveform The DC waveform is generated from the offset circuit AFG310 amp AFG320 Service Manual Theory of Operation Arbitrary waveform generation The Arbitrary waveform is generated via the 5 MHz Elliptical Filter by sending the data read from waveform memory to the 12 bit D A Clock is supplied from the Sine Square converter AM modulation For CH1 output waveforms when AM modulation is selected the original waveform is amplitude modulated internally by an external signal from the AM IN connector on the rear panel GPIB The A20 Board has the General Purpose Interface Bus GPIB interface driver which controls communication with external devices over the parallel interface The GPIB IEEE STD 488 PORT connector is on the rear panel CH2 A30 CH2 A30 is of the same configuration as Main A20 except the System Processor circuits CPU and GPIB and AM modulator Channel 2 circuit The CH2 side of AFG320 is of the same circuit configuration except the above AM IN circuit Power Supply 40 The low voltage power supply board A40 supplies 5 V 5 V 15 V and Transformer 5 V to all the Analog and Digital circuits and power to the fan Also the main POWER switch S101 and Line Voltage select switch
83. ource Horizontal Sweep 20 us adjust for best display Trigger Source CH2 Coupling DC Slope Positive Level 500 mV Mode Auto 4 20 AFG310 amp AFG320 Service Manual Performance Verification 6 Refer to Table 4 12 to set the signal generator controls Table 4 12 Signal generator settings Function Setting Frequency 10 kHz square wave Amplitude 0 5 V TTL compatible output 7 Select INITIALIZE in the SYSTEM menu on the function generator to initialize the system Press the buttons on the front panel in the following order SHIFT PHASE gt lt button until INITIALIZE is displayed gt ENTER ENTER 8 Set the CH1 and CH2 burst count to 3 and set the operating mode to TRIG triggered Press the CH button to change the target channel back to SHIFT gt MODE gt 3 gt ENTER MODE gt gt ENTER CH gt SHIFT gt MODE gt gt ENTER MODE gt gt ENTER gt 9 Press the CH1 button above the BNC connector to set the waveform output to on 10 Check that the one cycle of the sine wave is output with the phase according to the phase changing from 360 to 360 in 90 steps The phase shift is observed at the starting point of the waveform Press the following buttons or keys on the front panel to change the phase by 90 relative value PHASE gt gt 9 gt 0 ENTER The following Figures are examples of waveforms for the different phase settings These
84. perature decreases 1 C each 300 m above 1 5 km Nonoperating Up to 15 km 50 000 ft Dynamics Random vibration Operating 0 31 g rms from 5 to 500 Hz 10 minutes each axis Nonoperating 2 46 g rms from 5 to 500 Hz 10 minutes each axis Shock Nonoperating 294 m s 30 G Half sine 11 ms duration Three shocks per axis in each direction 18 shocks total Table 1 17 Installation Requirements Name Installation Requirements Maximum Power Dissipation Fully Loaded Surge Current Cooling Clearance Description 70 W Maximum line current is 2 A at 90 V line and 50 Hz 12 A 25 C peak for lt 5 line cycles after product has been turned off for at least 30 s 5 cm 2 in Top even Rackmounted type 5 cm 2 in Rear AFG310 amp AFG320 Service Manual Specifications Certification and Compliances The certification and compliances for the AFG310 and AFG320 Arbitrary Function Generator are listed in Table 1 18 Table 1 18 Certifications and compliances Category EC Declaration of Conformity EMC Australian New Zealand declaration of Conformity EMC EC Declaration of Conformity Low Voltage Approvals Installation Category Standards or description Meets intent of Directive 89 336 EEC for Electromagnetic Compatibility Compliance was demonstrated to the following specifications as listed in the Official Journal of the European Communities EMC Directive 89 336 EEC EN 55011 Class A Radia
85. press the POWER switch NOTE The instruments current settings are not automatically stored at power off To store instrument settings for the next power on use the SAVE menu before powering off Repackaging Instructions If this instrument is shipped by commercial transportation use the original packaging material If the original packaging is unfit for use or is not available repackage the instrument as follows 1 Obtain a corrugated cardboard shipping carton having inside dimensions at least six inches greater than the instrument dimensions and having a carton test strength of at least 124 74 kg 275 pounds 2 If the instrument is being shipped to a Tektronix Service Center for repair or calibration attach a tag to the instrument showing the following owner of the instrument with address the name of a person at your firm who may be contacted if additional information is needed complete instrument type and serial number and a description of the service required 3 Wrap the instrument with polyethylene sheeting or equivalent to protect the outside finish and prevent entry of packing materials into the instrument 4 Cushion the instrument on all sides by tightly packing dunnage or urethane foam between the carton and the instrument allowing for three inches of padding on each side including top and bottom 5 Seal the carton with shipping tape or with an industrial stapler AFG310 amp AFG320 Service Manual 2 9
86. procedures for inspecting the AFG310 and AFG320 Arbitrary Function Generators and cleaning its external and internal modules Troubleshooting Information for isolating failed modules Included are instructions for operating the internal diagnostic routines and troubleshooting tree The tree makes use of these internal diagnostic routines to speed fault isolation to a module Related Maintenance Procedures The following sections contain information and procedures related to mainte nance The Operating Information section covers instructions useful when operating and trouble shooting the AFG310 and AFG320 Arbitrary Function Genera tors It also explains the service strategy and lists options for obtaining maintenance service and for replacing failed modules The Theory of Operation section contains a circuit description at the module or block level The Performance Verification section contains procedures that may be useful in isolating problems to modules by testing the performance of the AFG310 and AFG320 Arbitrary Function Generators The Adjustment Procedures section explains that there are no adjustments The Diagrams section contains a block diagram using individual modules as blocks and an interconnection diagram showing connections between the modules The Mechanical Parts List section lists all field replaceable modules by part number AFG310 amp AFG320 Service Manual 6 1 Maintenance Preparation AN Pr
87. r the performance of service Customer shall be responsible for packaging and shipping the defective product to the service center designated by Tektronix with shipping charges prepaid Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located Customer shall be responsible for paying all shipping charges duties taxes and any other charges for products returned to any other locations This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care Tektronix shall not be obligated to furnish service under this warranty a to repair damage resulting from attempts by personnel other than Tektronix representatives to install repair or service the product b to repair damage resulting from improper use or connection to incompatible equipment c to repair any damage or malfunction caused by the use of non Tektronix supplies or d to service a product that has been modified or integrated with other products when the effect of such modification or integration increases the time or difficulty of servicing the product THIS WARRANTY IS GIVEN BY TEKTRONIX 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
88. racy Checks Operating Mode and Phase Checks Modulation Checks The tests in this subsection do an extensive check of performance and functional ity when the following requirements are met The cabinet covers must be on the Arbitrary Function Generator You must have performed and passed the procedures under Self Tests and Calibration on page 4 2 The Arbitrary Function Generator must have been calibrated at an ambient temperature between 20 C and 30 C must have been operating for a warm up period of at least 20 minutes and must be operating at an ambient temperature between 0 and 50 AFG310 amp AFG320 Service Manual Performance Verification Equipment Required Function Generator Minimum Requirements Example Impedance 50 connectors female Tektronix part number BNC input male BNC output 50 Q 011 0049 01 1 Q 2 W DC to 1 GHz Table 4 3 Test Equipment Item Number and Description 1 Terminator 50 The following equipment is required to check the performance of the Arbitrary Purpose Signal Termination for many Test 2 Terminator 50 Preci Impedance 50 Q connectors female Tektronix part number sion BNC input male BNC output 50 Q 011 0129 00 0 05 2 W DC to 100 kHz Checking DC Offset and Amplitude 3 Cable 50 Q Coaxial 50 Q 43 in male to male BNC Tektronix part number Signal Interconnection three required connectors 0
89. rbitrary Function Generator must meet the prerequisites minator Item 2 on page listed on page 4 4 4 5 One coaxial cable Item 3 page 4 5 One dual banana con nector Item 6 page 4 5 One digital multimeter Item 10 page 4 5 1 Set the DMM measurement range to DC 20 V 2 Select INITIALIZE in the SYSTEM menu on the function generator to initialize the system Press the buttons on the front panel in the following order SHIFT PHASE gt lt button until INITIALIZE is displayed gt ENTER gt ENTER 3 Set the 1 and CH2 FUNC waveforms to DC and offset to 5 V then press the CH button to change the target channel back to FUNC gt button until DC is displayed gt ENTER OFFSET gt 5 gt Hz s V CH gt FUNC gt button until DC is displayed ENTER OFFSET gt 5 gt Hz s V gt 4 Press the CH1 button to set waveform output to on 4 16 AFG310 amp AFG320 Service Manual Performance Verification 5 Check that the offset voltage for the DC waveform 15 within the range listed in the table below a Use the numeric keys and unit keys to change the offset of the function generator b Set the range of the digital multimeter to DC 20 V LCD Display in AMPL Column Amplitude Range 5 000 V 5 055 V 4 945 V c Set the range of the digital multimeter to DC 2 V 1 000 V 1 015 V 0 985 V 0 500 V 0 510 V 0 490 V d Setthe range of the digital multimeter to DC 200 mV
90. rcuit Sometimes a single compo nent is a module for example each chassis part of the instrument is a module Symbols and terms related to safety appear in the Safety Summary near the beginning of this manual Other documentation for the AFG310 and AFG320 Arbitrary Function Generators includes m The AFG310 and AFG320 Arbitrary Function Generator User Manual contains a tutorial to quickly describe how to operate the function generator It also includes an in depth discussion on how to more completely use the function generator features m The AFG300 Series Programmer Manual explains how to use a GPIB interface to remotely control the function generator AFG310 amp AFG320 Service Manual Introduction Service Strategy Service Offerings Warranty Repair Service Self Service This manual contains all the information needed for periodic maintenance of the AFG310 and AFG320 Arbitrary Function Generator Further it contains all information for corrective maintenance down to the module level To isolate a failure to a module refer to the Maintenance section After isolating a faulty module replace it with a fully tested module obtained from the factory The Mechanical Parts List section contains part numbers and ordering information for all replaceable modules Throughout this manual the term module refers to any field replaceable component assembly or part of the AFG310 and AFG320 Arbitrary Function Generator Tektronix
91. reduce the value to the left starting at the position of the cursor to 0 Pressing this button again reduces the value in the minus region If the current offset value is negative pressing the button increases the value across 0 as well Phase values can be negative as well However to change the value above or below zero the cursor must be moved temporarily to the least significant digit 3 After a value has been changed the value can be confirmed by pressing a unit key or the ENTER button if the block cursor is blinking When a value has been changed some items require that the front panel ENTER button be pressed If an underscore cursor is displayed after a value has been changed that item is already confirmed If the block cursor is blinking after the value has been changed either a unit key or the ENTER button must be pressed to confirm that value See Tables 2 7 and 2 8 When the underscore cursor is displayed it is not necessary to press the ENTER button The numeric values for the FREQ AMPL OFFSET and PHASE items in the setting menu have the characteristics of the numeric values in setting Example 1 Table 2 7 Numeric value input for Example 1 Numeric value Buttons for input LCD display status 1 00 Before input gt 1 00 an 0 90 During input 0 80 Entered When the underscore cursor has changed to the block cursor either a unit key or the ENTER button must be pressed to confirm the value If a unit
92. riggered Burst 0 Fixed 100 kHz lt f lt 1 MHz Continuous Mode 0 Fixed Restriction Phase Resolution No restrictions 1 Output Frequency x 2 kHz 1 Waveform Length gt 360 points 1 Frequency Range Accuracy Less than 10 kHz 0 1 10 kHz to 100 kHz 0 2 AFG310 amp AFG320 Service Manual 1 5 Specifications Table 1 8 Main Output Name Description Sine Wave Flatness relative to 1 kHz at Ampli Frequency Setting Flatness Range tude 1 2 Vp p Less than 100 kHz 1 100 kHz to 1 MHz 1 5 1 210 16 2 3 Harmonic Distortion Frequency Setting Harmonic Distortion at Amplitude 1 Vp p typical DC to 20 kHz 70 dBc typical 20 kHz to 100 kHz 60 dBc 100 kHz to 1 MHz 45 dBc 1 MHz to 16 MHz 35 dBc Total Harmonic Distortion 0 05 at Amplitude 1 V and 20 kHz Spurious non harmonic typical 55 dBc at 10 MHz Phase Noise typical 90 dBc Hz at 10 MHz Carrier Wave with 10 kHz offset Subharmonic typical 50 dBc Cross Talk between Channels typical Less than 70 dBc Only AFG320 Sine Wave 1 MHz Amplitude 1 V No Offset Square Wave Pulse Response Rise Fall Time Less than 20 ns Overshoot Less than 2 Triangle Ramp Pulse User Waveforms Edit Waveform Response typical Rise Fall Time less than 100 ns Pulse Duty Range 1 96 to 99 96 Resolution 1 Jitter typical 2 ns at 100 kHz DC Range 5 V to 5 V into 50 Q Resolution 5 mV DC Accuracy t 1 of DC volts 5 mV
93. rs Burned broken or frayed wiring Dents deformations and dam aged hardware Resolder joint and clean with ethyl alcohol Remove damaged module and replace with a new module from the factory Remove failed module and replace with a new module Firmly seat connectors Repair or replace modules with defective wires or cables Straighten repair or replace defective hardware Maintenance 6 6 Cleaning Procedure Interior Do the following steps to clean the generator interior 1 2 Blow off dust with dry low pressure deionized air approximately 9 psi Remove any remaining dust with a lint free cloth dampened in ethyl alcohol and rinse with warm deionized water A cotton tipped applicator is useful for cleaning in narrow spaces and on circuit boards STOP If after doing steps 1 and 2 a module is clean upon inspection skip the remaining steps If steps 1 and 2 do not remove all the dust or dirt the generator may be spray washed using a solution of ethyl alcohol by doing steps 4 through 8 Gain access to the parts to be cleaned by removing easily accessible shields and panels Spray wash dirty parts with the ethyl alcohol and wait 60 seconds for the majority of the alcohol to evaporate Use hot 120 F to 140 F deionized water to thoroughly rinse boards and components Dry all parts with low pressure deionized air Dry all components and assemblies in an oven or drying comp
94. s Setting the instrument system AFG310 amp AFG320 Service Manual Operating Instructions LCD Display The LCD liquid crystal display shows the Default Display or the Menu Item Display Refer to Figure 2 4 for the location of the LCD Display on the front panel For an example of the Default Display refer to Figure 2 6 For an example of the Menu Item Display refer to Figure 2 7 Default Display In this state the current CH1 values for the setting menu items FUNC FREQ AMPL OFFSET MODUL MODE and PHASE are dis played The instrument goes to the default display state after power on after executing the initialization procedure and after executing the secure operation Press the EXIT CANCEL button repeatedly to return to the default display from states in which menu items are displayed Return to the default display by pressing the OFFSET MODE MODUL or PHASE button CH1 Indicator Type of Waveform light up selected Frequency Value Prefix of Unit FUNC FREQUENCY Hz AMPL V SINE 100 0000k 1 000 Amplitude Value BOTH CH2 0 000 CONT OFF 0 Phase Value 4 Hi PHASE DEG Offset Value Operating Mode Modulation Type selected selected Figure 2 6 Default display Menu Item Display When the SHIFT button and then one of the EDIT SYSTEM FUNC PARAMETER MODE PARAMETER MODUL PARAMETER or RECALL buttons are pressed sequentially or when the SAVE
95. strument High pressure air can cause ESD Instead use low pressure compressed air about 9 psi Using Table 6 2 as a guide inspect the outside of the instrument for damage wear and missing parts You should thoroughly check instruments that appear to have been dropped or otherwise abused to verify correct operation and perfor mance Immediately repair defects that could cause personal injury or lead to further damage to the instrument Table 6 2 External Inspection Check List Item Inspect for Repair action Cabinet front panel and cover Cracks scratches deformations damaged Replace defective module hardware or gaskets Front panel knobs Missing damaged or loose knobs Repair or replace missing or defective knobs Connectors Broken shells cracked insulation and Replace defective modules Clear or wash out deformed contacts Dirt in connectors dirt Carrying handle and cabinet feet Correct operation Replace defective module Accessories Missing items or parts of items bent pins Replace damaged or missing items frayed broken or frayed cables and damaged cables and defective modules connectors AFG310 amp AFG320 Service Manual Maintenance Cleaning the Instrument Exterior ZN WARNING To avoid injury or death unplug the power cord from line voltage before cleaning the instrument To avoid getting moisture inside the instrument during external cleaning use only enough liquid to dampen t
96. system is in the BOTH input Displays item selection numeric and message within 20 characters in two lines mode Figure 2 4 shows the locations of the front panel controls and connectors FREQUENCY Hz _OFFSET V Mone MopuL PHASE Tektronix AFG320 BOTH ARBITRARY FUNCTION GENERATOR EDIT SYSTEM J FREQ AMPL PARAMETER creer SAVE roc CURSOR 4 5 kHz ns nV SELECT 11121 3 JL b V Els PREV MENU OUTPUT TRIGGER MANUAL 4 42 Vpk MAX FLOAT 50 EXT IN fo 42 Vpk BLOAT TTL POWER Switch d CHIOUTPUT CH2DOUTPUT TRIGGER EXT IN Numeric Input Keys and Button C CH 2 for AFG320 J Connector A j 2 Delete Butt TTL level external Numeric Keys Unit Keys CSIC BUHON Floating waveform output trigger input connector us connector The input impedance 9 mm The output impedance is 10 5 6 Deletes digit is 50 Q Hrs V decimal point or The CH 2 output 1 sign at the left of connector is not installed C C ES the block cursor in AFG310 Confirms the input value with designated unit Inputs numeric values decimal point sign and INF
97. t waveforms The waveforms from the SYNC Out on the rear panel are generated by the circuit on the side Basic sine waveforms are generated by DDS Direct Digital Synthesis DDS uses Sequence Memory SIN REF and clock 42 9 MHz inputs The DDS output is fed through a 20 MHz elliptical Filter Basic square waveforms are generated by sending the output of the 20 MHz elliptical Filter through a SIN SQ Converter All other waveforms are generated by sending the data read from Waveform Memory to the 12 bit D A through the 5 MHz Elliptical Filter The Waveform Memory clock is supplied by the SIN SQ Converter When AM modulation is selected for CH1 output waveforms the original waveform is amplitude modulated internally by an external signal from the AM IN connector on the rear panel Each analog waveform signal is put at the desired output level including an offset by the Analog Output circuit consisting of an amplifier an attenuator and an offset circuit The circuit configuration is the same for CH2 except the AM IN circuit is available for CH1 only The front panel switch is read by the PLD Programmable Logic Device on the front panel board and any setting changes are reported to the A20 A30 MAIN AFG310 amp AFG320 Service Manual 3 1 Theory of Operation 3 2 Main A20 Also the PLD controls LED On Off and Beeper operation and LCD 20 x 2 rows indication EXT TRIG IN The trigger signal from EXT TRIG I
98. ted and Conducted Emissions EN 50081 1 Emissions EN60555 2 AC Power Line Harmonic Emissions EN 50082 1 Immunity IEC801 2 Electrostatic Discharge Immunity IEC801 3 RF Electromagnetic Field Immunity IEC801 4 Electrical Fast Transient Burst Immunity IEC801 5 Power Line Surge Immunity Complies with EMC provision of Radio communications Act per the following standard AS NZS 2064 1 2 Industrial Scientific and Medical Equipment 1992 Compliance was demonstrated to the following specification as listed in the Official Journal of the European Communities Low Voltage Directive 73 23 EEC amended by 93 68 EEC EN 61010 1 A2 1995 Safety requirements for electrical equipment for measurement control and laboratory use Complies with the following safety standards UL3111 1 First Edition Standard for electrical measuring and test equipment CAN CSA C22 2 No 1010 1 92 Safety requirements for electrical equipment for measurement control and laboratory use CAT Il Terminals on this product may have different installation over voltage category designations The installation categories are Category Examples of products in this category CAT Ill Distribution level mains usually permanently connected Equipment at this level is typically in a fixed industrial location CAT Il Local level mains wall sockets Equipment at this level includes appliances portable tools and similar products Equipment is usually cord connected CAT
99. the voltage output when a 50 2 termination is provided When the output is open a voltage twice that is displayed on the LCD from the OUTPUT connector s CAUTION To prevent damage to the instrument do not short the output pins or apply external voltages SYNC OUT Connector This connector outputs a TTL level pulse synchronized with the CH1 output See Appendix D SYNC Signal Output in the AFG310 and AFG320 Arbitrary Function Generators User Manual on page D 1 for details on signal output timing The output impedance is 50 Q AFG310 amp AFG320 Service Manual 2 15 Operating Instructions TRIGGER EXT IN Connector The EXT IN connector inputs a TTL level external trigger signal The input impedance is 10 KQ CAUTION To prevent damage to the instrument do not apply excessive inputs over 5 V AM IN Connector The AM IN connector inputs an external AM modulation signal See AM AM Modulation on page 3 17 in the AFG310 and AFG320 Arbitrary Function Generators User Manual for details on input level and modulation depth The input impedance 15 10 Basic Menu Operations This subsection contains the following information Reading an LCD display Moving between menus Entering Numeric input Outputting a waveform Setting the waveform parameters Setting the operation mode Applying modulation sweep to the output waveform Recalling a setting Saving setups Editing saving and importing waveform
100. ther side of the BNC T connector 4 Connect the BNC T connector to the EXT TRIG IN connector of function generator Refer to Table 4 10 for the accuracy test requirements AFG310 amp AFG320 Service Manual Performance Verification Table 4 10 Operating Mode and Phase Test Requirements Equipment Required One 50 Q terminator Item 1 on page 4 5 BNC connector Item 4 page 4 5 Three coaxial cables Item 3 page 4 5 One signal generator Item 9 page 4 5 One digital oscilloscope item 10 page 4 5 Prerequisites The Arbitrary Function Generator must meet the prerequisites listed on page 4 4 Signal Generator ce 2000 S 5L Digital Oscilloscope 7 BNC T E O Connector amp r 9 is CH2 50 Q Coaxial Cables 50 Termination Figure 4 4 Initial Test Hookup 5 Refer to Table 4 11 to set the oscilloscope controls Table 4 11 Oscilloscope settings Function CH 1 Vertical Coupling Scale Input Impedance CH 2 Vertical Coupling Setting DC 0 2V DIV 1 DC AFG310 amp AFG320 Service Manual 4 19 Performance Verification Table 4 11 Oscilloscope settings Cont Function Setting 0 5 V DIV 1 MQ or external ter mination if required by Scale Input Impedance s
101. tive susceptibility to static discharge damage Semiconductor classes MOS or CMOS microcircuits or discrete circuits or linear microcircuits with MOS inputs most sensitive Relative susceptibility levels 1 ECL 2 Schottky signal diodes 3 Schottky TTL 4 High frequency bipolar transistors 5 JFET 6 Linear microcircuits 7 Low power Schottky TTL 8 TTL least sensitive 9 1 Voltage equivalent for levels voltage discharged from a 100 pF capacitor through resistance of 100 ohms 1 100 to 500 V 6 600 to 800 V 2 200 to 500 V 7 400 to 1000 V est 3 250V 8 900 V 4 500V 9 1200 V 5 400 to 600 V AFG310 amp AFG320 Service Manual 6 3 Maintenance Inspection and Cleaning ZN Exterior Inspection Inspect and clean the instrument as often as operating conditions require The collection of dirt can cause instrument overheating and breakdown Dirt acts as an insulating blanket preventing efficient heat dissipation Dirt also provides an electrical conduction path that can cause an instrument failure especially under high humidity conditions CAUTION Avoid the use of chemical cleaning agents that might damage the plastics used in this instrument Use only deionized water when cleaning the menu buttons or front panel buttons Use a ethyl alcohol solution as a cleaner and rinse with deionized water Avoid the use of high pressure compressed air when cleaning dust from the interior of this in
102. unless another person capable of rendering first aid and resuscitation is present Disconnect Power To avoid electric shock disconnect the mains power by means of the power cord or if provided the power switch Use Care When Servicing With Power On Dangerous voltages or currents may exist in this product Disconnect power remove battery if applicable and disconnect test leads before removing protective panels soldering or replacing components To avoid electric shock do not touch exposed connections AFG310 amp AFG320 Service Manual ix Service Safety Summary x AFG310 amp AFG320 Service Manual Preface This preface contains information needed to properly use this manual to service the AFG310 and AFG320 Arbitrary Function Generators Manual Structure This manual is divided into sections such as Specifications and Theory of Operation Further some sections are divided into subsections such as Product Overview and Self Test and Calibration Procedure Sections containing procedures also contain introductions to those procedures Be sure to read these introductions because they provide information needed to do the service correctly and efficiently The following contains a brief description of each manual section Specifications contains a description of the function generator and the characteristics that apply to it Operating Information includes general information and operating instructions Theory of Op

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