Keithley 775A, Instruction Manual

Page 1: ...service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE IN...

Page 2: ...tten approval of Keithley Instruments Inc is strictly prohibited All Keithley Instruments product names are trademarks or registered trademarks of Keithley Instruments Inc Other brand names are tradem...

Page 3: ...ndirect special or consequential damages STATEMENT OF CALIBRATION This instrument has been inspected and tested in accordance with specifications published by Keithley Instruments Inc The accuracy and...

Page 4: ...10 rms Hz frequency 1OOkHz 5oVrms Channel C with Model 7751 option RANGE 5OMHz to 1 3GHz SENSITIVITY l5mV 50MHz to l OCHz 25mV l OGHz to 1 2GHz 75mV 1 2GHz to 1 3GHz DYNAMIC RANGE 25mV rms to 1V rms C...

Page 5: ...or normal 3 second ARMING nRIGGER Each channel is armed by it s own signal or RESET button 01 EXT ARMING input when in one shot HOLD mode ARMING DELAY 30 in Frequency and Period Average lOas in Perio...

Page 6: ...Address Switches 2 6 2 3 4 Line Fuse 2 6 2 4 POWER UP PROCEDURE 2 6 2 5 DISPLAYMESSAGES 2 7 2 5 1 No Option Message 2 7 2 6 CONTROL SELECTION 2 8 2 6 1 Function 2 8 2 6 2 Selecting GateTime 2 8 2 6 3...

Page 7: ...IONS I 3 10 Controlled Interface Routines 3 10 HP 8 BASIC Statements 3 11 Interface Function Codes 3 L Model 775 Interface Commandr 3 13 GENER AL BUS COMMAND PROGRAMMING 3 13 REN Remote Enable 3 13 IF...

Page 8: ...4 3 54 4 5 4 5 INTRODUCTION 5 l OVERALL FUNCTIONAL DESCRIPTION 5 l ANALOG CIRCIJITP Y 5 3 Input Circuits A and B 5 3 Input C cuitC 5 3 1OMHz Standard Reference Oscillator 5 3 1OMHz ICXO Reference Osc...

Page 9: ...SHOOnNG 6 10 Recommended Test Equipment 6 10 Power Up Self Diagnostics 6 10 Power Supply Checks 6 10 Reference Oscillator and Clock Checks 6 11 Digital Circuitry and Display Checks 6 11 Signal Conditi...

Page 10: ...Frequency B Measurement Block Diagram 5 7 Frequency C Measurement Block Diagram 5 8 Period A Measurement Block Diagram 5 9 Time Interval A B Measurement Block Diagram 5 10 Pulse Width Measurement Bloc...

Page 11: ...tation 3 26 Data String Format 3 28 Prefixes 3 2 Status Word Format 3 30 DumpMode Specifications 3 33 Dump Ouput Mode Result Calculation 3 34 4 l Recommended Test Equipment for Performance Verificatio...

Page 12: ...from the positive going slope of the arming signal to the internal gate open signal Where External Gate Delay External gate delay is the time from ei is the RMS noise voltage of the counter s input ch...

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Page 14: ...t for some channel A B time measurements True DC Coupling Allows the Model 775 to do channel A B time measurements Reciprocal Technique This counting method provides ad vantages over all traditional c...

Page 15: ...19AFixed RackMount The Model 1019Ais a sta tionary rack mount kit that allows the Model 775 to be mounted in a standard 19 inch rack Model 1019s Slide Rack Mount The Model 10195 is a sliding rack moun...

Page 16: ...asic frequency and time measurements IEEE 488programming can also be used These aspects are covered in detail in Sections 3 and 4 A layout of the front and rear panels of the Model 775 are shown in Fi...

Page 17: ...input signal CHAN C used when making high frequency measure SLOPE button toggles instrument between the positive ments up to 1GHz with a 500 input impedance 7751 or negative edge trigger option The s...

Page 18: ...EVEL OLPTPLJT connections are used to El LINE FUSE provides protection on the AC power line connect the DC voltage level from the trigger circuits input to an external Dh4M or osciIloscope DC output r...

Page 19: ...ess the MODE button once to place the lnstru ment in the hold mode Press the RESET button to clear the display and take a reading The reading will be held on the display until the RESET button is pres...

Page 20: ...operating mode the instrument will display a maximum of nine digits The minimum number of digits displayed is three To access the display function press simultaneously the GATE DELAY and TRIGGER LEVE...

Page 21: ...marked on the rear panel above the line voltage selector switch IEEE 488Connector This connector is used to connect the instrument to the IEEE 488bus IEEE interface functions are marked above the conn...

Page 22: ...ample with the rear panel switch set to address 23 the display will show IE Adr 23 Following these display messages the instrument will go into the normal operating mode and is ready to take readings...

Page 23: ...time each time the A or V button is pressed The present gate time may be noted on the display by pressing the GATE DELAY button Select the gate time as follows 1 Pressthe GATE DELAY button The GATE D...

Page 24: ...IME V button or both the A and V buttons to preset the gate tiine to kc 2 6 4 Using Delay The Model 775 has a delay function which disables the closure of the opened gate for the predetermined periods...

Page 25: ...level NOTE The user delay function may be accessed only when the GATE DELAY light is on Toexit the user delay mode simply depress the GATE DELAY TIME v button or both the A and v buttons to preset th...

Page 26: ...setting proceed as follows 1 Tochange the slope that the instrument will trigger on press the SLOPE button If the 1 indicator light is off the counter will trigger on the positive edge of the input si...

Page 27: ...erratic When the Model 77 is setto operate with infinite gate time pulses are counted for as long as they are present at the input terminal This is called cum mulative totalize mode It is also possib...

Page 28: ...turns off 2 7 3 External Arming External arming operates much like front panel arming ex cept for the arming stimulus itself In this case the arm ing stimulus is applied to the rear panel EXT ARMING...

Page 29: ...s triggered after which the level changes slowly at one step per reading This feature provides a means to detect the peaks of an input sigal 6 Set trigger A and trigger B levels to the 90 and 10 point...

Page 30: ...bouncing is ignored 4 The counter is now reading tw time The delay in gate closing prevented the initial bounce time from prematurely closing the gate Figure 2 4 Using Delay to Measure Contact Dwell...

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Page 32: ...for both data and most commands Five bus management lines and three handshake lines round out the complement of signal lines Since the bus is of parallel design all devices con nected to the bus have...

Page 33: ...lines ensure that proper data transfer and bus operation takes place Each of the bus lines is active low so that approximately zero volts is a logic one The following paragraphs describe the purpose o...

Page 34: ...C line will not go high until the slowest device has accepted the data byte After the NDAC line goes high the source then sets the DAV line high to indicate that the data on the bus is no longer valid...

Page 35: ...mands Device Dependent commands are sent with the ATN line high false A I I state of TN Line Comments X Set up for remote operation X Sent by setting EO1 low X Clears Interface Low Defines data bus co...

Page 36: ...sent to the Model 775to place the instrument in the fre quency A mode The IEEE 488bus treats device dependent commands as data in that ATN is high false when the commands are transmitted 3 5 COMMAND C...

Page 37: ...2 Universal Command Sequence The universal commands are sent by setting ATN low and then placing the command byte on the bus For example the following gives the LLO command ATEI LLO Note that both th...

Page 38: ...IEEE 488 OPERATION Figure 3 3 Command Codes 3 7 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 39: ...a number of parallel con nections on one instrument Pigure 3 5 IEEE 488 Connector NOTE To avoid possible mechanical damage it is recommended that no more than three connec tors be stacked on any one i...

Page 40: ...ntact Designations contact Number 1 2 3 z 6 7 i 10 ii 13 14 15 16 17 18 19 20 21 22 23 24 IEEE 488 Designation Type DIOl Data D102 Data D103 Data D104 Data EOI 24 Management DAV Handshake NRFD Handsha...

Page 41: ...del 775wiB display the present primary address For example with the factory set value the display will show the following IE Adr 23 This messagewill show on the display after a lamp test is complete a...

Page 42: ...ould be used LOCAL 722 Some of the statements in the table have two forms the exact configuration used depends on the desired com mand For example CLEAR 7 will cause a DCL to be sent while CLEAR 723 c...

Page 43: ...ction The ability for the Model 775 to receive device dependent data over the bus from other devices is provided by the L function Listener function capabilities of the Model 775 exist only after it h...

Page 44: ...d for these commands All devices equipment to implement these commands will do so simultaneously when the com mand is sent General bus commands are summarized in Table 3 9 which also lists the HI 85 B...

Page 45: ...he HP 85when the following statement se quence is typed into the keyboard 3 9 4 GTL Go To Local The GTL command is used to take the instrument out of the remote mode To send the GTL command the con tr...

Page 46: ...END LINE key is pressed the instrument return to power up status 3 9 6 SDC Selective Device Clear The SDC command performs the same function as the DCL command except that only the addressed device re...

Page 47: ...hen places its status byte on the bus to be read by the controller 6 The controller then sets the ATN line low and places SPD Serial Poll Disable on the bus to end the serial polling sequence Steps 3...

Page 48: ...t command the con troller must perform the folrowing sequence 1 Set ATN true 2 Address the Model 775 to listen 3 Set ATN false 4 Send the command string over the data bus one byte at a time Pmgrammln...

Page 49: ...IEEE 488 OPERATION Table 3 11 Device Dependent Command Summary Cont Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 50: ...ed the command No other changes will occur with this example because no other commands were given 3 10 2 Function F The function commands select the type of measurement made by the Model 775A The eigh...

Page 51: ...O Filter off Fl Flter on BFO Filter off BFl Filter on Upon power up or after receiving a DCL or SDC the in strument will be in AFO and BFO Programming Example Select the filter off with the front pane...

Page 52: ...signed in such a way to allow free format in pro gramming the trigger level In the previous exam ple therefore the last line may be replaced with one of the following lines 3 10 8 Rate S The rate com...

Page 53: ...the gate time is one se cond When END LINE is pressed the third time the gate time is set to 500msec NOTE To increase flexibility the Model 775 was de signed in such a way to allow free format in pro...

Page 54: ...ltaneously the GATE DELAY TIME A and 7 buttons Press simultaneously the GATE DELAY and TRIGGER LEVEL DISPLAY buttons and then press simultaneously the GATE DELAY TIME A and v buttons This will set up...

Page 55: ...be checked via serial polling seeparagraph 3 9 8 to determine if it was the Model 775 that requested service Other bits in the status byte could also be set depending on certain data or error conditi...

Page 56: ...O Yes Yes NO NO Yes Yes NO NO Yes Yes NO NO Yes Yes NO NO Yes Yes NO NO Yes Yes E Yes Yes NO NO Yes Yes Overflow NO Yes NO Yes NO Yes No Yes NO Yes NO Yes NO Yes NO Yes NO Yes NO Yes NO Yes No Yes NO...

Page 57: ...be read to clear the SRQ line Otherwise the instrument will continuously assert the SRQ line 2 The Model 775may be programmed to generate an SRQ for more than one condition simultaneously For exam pl...

Page 58: ...the self test The result of the self test may be checked by reading the Ul error status word A detailed description on the Ul error status word and how to read it is given in paragraph 3 11 2 3 10 18...

Page 59: ...ch of five commands NOTES 1 Data strings have fixed length of 14ASCII characters for the BOcommand without the prefix and terminator For all other data strings Bl 82 83 and B4 the length of the data s...

Page 60: ...Program Model 77 5to send the gate time data string Enter reading into computer Display reading into computer Display on CRT Press the HP g5 RUN key The computer reads and dtsplays the gate time stri...

Page 61: ...f the following commands 4 The retimed Ul value is 1for an IDDC error for an IDD CO error for a GATE ERR that occurs after the Ul status word has been cleared the last time and if the self test failed...

Page 62: ...same command string 3 11 5 Dump Mode 53 Rate Mode The 53 rate mode may be used when it is desired to out put Model 775readings to the bus at an extremely fast rate or to analyze raw measurement data...

Page 63: ...last byte Interpretation T5 IB TIME REGISTER E5 EO EVENT REGISTER Gate Time Limits Overflow Indication 1OOssec to 9msec with internal gate time 1OOFsec to 9 99999msec with external gate time 999999 i...

Page 64: ...pUt lo1 121 64 1001 03109 Tie Register 101264 Event Register OOtl309 Ml264 x lo Period Averaged 3277l52104 x 10 309 3277152104x 1O 1 LSD 0 003236245 x lo 101264 This is rounded to Ol x lO Adjusted Per...

Page 65: ...messages in Figure 3 M a results from an Negal Device Dependent Command DC while the messagein Figure 3 10 b results from an Illegal Device Dependent Option IIDCO 3 12 1 IDDC Error An IDDC error resu...

Page 66: ...EVICE DEPENDENT COMMANDS IIDDC mJml S ILLEGAL DEVICE DEPENDENT COMMAND OPTION IIDDCO Figure 3 10 IEEE 488 Display Error Messages 3 3513 38 Artisan Technology Group Quality Instrumentation Guaranteed 8...

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Page 68: ...p ment may be used as long as the accuracy specifications are equal or exceed the specifications listed in Table 4 l 4 4 INITIAL CONDITIONS Before performing the verification procedures make sure the...

Page 69: ...tor setting to 1040MHz 10 Observe that the reading on the display is stable within the range of 1 04000000E 9Hz f500 counts 4 5 2 Period Measurement Accuracy Check The period measurement verification...

Page 70: ...is signal to the chan nel A input terminal 2 Change the Model 775setting to frequency A and user gate mode 3 Change function generator setting to 5Hz square wave 4 Apply this SYNC output ITL to the re...

Page 71: ...mance verification is done by using the the Model 7752 option where specified tolerance in the same procedures as described above The difference is in above checks is 500counts tolerance should change...

Page 72: ...ional counter measuring WI2 with a gate time of one second will display a resolution of lHz where as the Model 775 with the same gate time will always display a minimum of eight digits of resolution A...

Page 73: ...THEORYOF OPERATION Flgure 5 1 Model 775 Slmplltled Block Dlagram 5 2 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 74: ...e input signal trisers on is controlled by an exclusive OR circuit U35 5 3 2 Input Circuit C The signal which is applied to the channel C input ter minal is AC coupled through Cl and through the ampli...

Page 75: ...Gates U42a U42b and U42d control the routing of the synchronized gate and the trme interval pulses to the main gate of the Model 775442c Main Gate The main gate of the Model 775 consists on U42c Signa...

Page 76: ...and U53 applied through Q41 to the series regulator Q40 Q40 is respectively mounted on the rear panel to absorb the heat generated by the power transistor Q39 and Rl23 form a protection circuit agains...

Page 77: ...THEORY OF OPERATION Figure 5 2 Frequency A Measurement Block Diagram 5 6 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 78: ...THEORY OF OPERATION FIgwe 5 3 Frequency B Measurement Block Dlagrem 6 7 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 79: ...THEORYOF OPERATION Figure 5 4 Frequency C Measurement Block Diagram 6 6 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 80: ...THEORYOF OPERATION I III I Figure 5 5 Period A Measurement Block Diagram 5 9 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 81: ...THEORY OF OPERATION Figure 5 6 Time Interval A B Measurement Block Diagram 5 10 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 82: ...THEORY OF OPERATION t t Y 2 Flgure 5 7 Pulse Width Measurement Block Diagram 5 11 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 83: ...THEORY OF OPERATION Figure 5 6 Microcomputer Block Qiagram 5 12 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 84: ...m memory and the second memory bank is the data memory The selection of the banks is done internally by the MCU Although the MCU has this large addressing capability only a portion of the possible mem...

Page 85: ...16registers 8 read and 8 write is provided by the CS WR RD and AO Al A2 terminals The output of the 8291 IC is standard IEEE format the eight data lines DIOl through DI08 the three handshake lines DA...

Page 86: ...e line votlage proceed as follows WARNING Disconnect the Model 775 from the power cord and all other WUIESS before changing the line WItage sattlng The Model 775 has a line fuse to protect the instrum...

Page 87: ...n See Figure 6 L4 for the location of Sl The EXT position is with the switch towards the front of the Model 775 A 3 For the TCXO time base locate switch Sl and slide it to the EXIT position The EXT po...

Page 88: ...l C input terminal The other side of this cable is soldered to one card guide to prevent this end from rattling inside the instrument and causing shorts Unsolder the shielded cable from the guide and...

Page 89: ...m the comb type connector 4 Disconnect the shielded cable coming from the oscillator board from the rear panel BNC connector 5 Slide the Model 7752 option along the card guide and push the card down u...

Page 90: ...d to the board Replace the shield after adjustments are complete WARNING Take gpeclal cara to prevent contact with live cir cuits or power line area which could cause elec trical shock resulting in se...

Page 91: ...MAINTENANCE I I I I I I Figure 6 4 Model 775 Calibration Adjustments 6 6 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 92: ...he Model 775 setting to AC coupling and x10 attenuation on both channels A and B 3 Connect the function generator output to channel A in put terminal 4 Connect the oscilloscope probe to the junction o...

Page 93: ...ch the pins 4 printed circuit board into which the deivce is to be in serted must also be grounded to the bench or table 5 Use only an anti static type solder sucker 6 Use only gmunded soldering irons...

Page 94: ...NOT SHOWNI 30544 MODEL 7752 TCXO OPTION BNC CONNECT0 JSHBUTTONS ICAL RESET 228 317 4 FRONT PANEL IODE TIME PERIOD FRE 1 228 317 5 OVERLAY 775 303 HAN A CHAN S CHAN C 228 317 6 Figure 6 5 Model 775 Ex...

Page 95: ...elsewhm until the micmonhdler circuitIs operatingpmperly The power up diagnostic test may be run either upon power up or through the IEEE 466 mterface bus The pro cedure to run a self diagnostic prog...

Page 96: ...he multiplier circuit will definitely cause false results on the Model 775 or may cause no result at all Problems in the multiplier circuit may be identified us ing Table 6 10 6 10 6 Trigger Level Che...

Page 97: ...in 30 on U6 0 to 4V 276nsec negative going Pin 29 on U6 0 to 4V 480nsec negative going pulses Address Data Bus 0 to 4V variable pulse train 3erial Data In Serial to Parallel Converters Clocks Keyboard...

Page 98: ...Input Amplifier B Gair Required Condition Turn on power lMHz lVp p sine 3 2 to 4 2V pulses with 50 duty cycle Depress FREQ button FREQ B light should be on lMHz lVp p sine 3 2 to 4 2V lMHz pulses with...

Page 99: ...FREQ C 5 PERIOD A 6 PERIOD AVG A 7 TIME A B 8 TIME PLS A 9 Signal Selector 10 Time Detect 11 Synchronizer 12 Signal Divider 13 Signal Identifier 14 Gate Identifier 15 Main Gate 16 Clock Divider 1 It 0...

Page 100: ...e Model 775 7 3 ORDERING INFORMATION To place an order or to obtain information concerning replacement parts contact your Keithley representative or the factory See inside front cover for addresses Wh...

Page 101: ...amic 0 1 Capacitor Ceramic 0 11 Capacitor Ceramic 0 1 Ca cibr Ceramic 0 1 Capacitor Ceramic 0 1 Capacitor Ceramic 0 1 Capacitor Ceramic 0 1 Capacitor Myler 33 250V Capacitor Ceramic 3 3p Selected valu...

Page 102: ...or Ceramic 0 1 Capacitor Electrolytic 470n 25V Capacitor Electrolytic 470 25V Capacitor Electrolytic 100 25V Caoacitor Electroivtic 100 25V Cabacitor Electrolytic 100 16V Capacitor Electrolytic 10 OOO...

Page 103: ...CR11 lN4151 KO300 0040 CR12 lN4l51 KO300 0040 CR13 lN4151 KO300 0040 CR14 lN4151 Ko300 0040 CR15 lN4l51 Ko300 0040 CR16 BAR10 Kll300 1020 CR17 BAR10 KO300 1020 CRl8 wo4 KO300 5010 CR19 KBM05 KO300 502...

Page 104: ...80 2N4403 KO400 0180 2N4403 KO400 0180 2N4403 KO400 0180 2N4403 KO400 0180 2N4lO3 KO400 0180 2N4403 KO400 Ol80 2N4403 KO400 0180 2N4403 KO400 0180 2N4403 KO400 0180 2N4 403 KO400 0180 2N4403 KO400 018...

Page 105: ...1hW Resistor Trim 100 Resistor Composition 22 5 hW Resistor Composition lk 5 qW Resistor MYF 49 9 l hW Resistor MTF 49 9 l aW Resistor Composition l3k 5 aW Resistor Composition lOk 5 l qW Resistor Com...

Page 106: ...5 W Resistor Composition 510 5 AW Resistor Composition 510 5 LAW Resistor Composition 100 5 W Resistor Composition 330 5 W Resistor Composition 510 5 W Resistor Composition 510 5 hW Resistor Composit...

Page 107: ...Resistor Composition lk 5 hW Resistor Composition 6 8k 5 AW Resistor Composition 6 8k 5 W Resistor Composition 6 8k 5 l aW Resistor Composition lk 5 aW Resistor Composition lk 5 GW Resistor Compositi...

Page 108: ...8279 8031 74LS373 74LSl38 Eprom 2764 max 300ms RAM 2114 RAM 2114 7061 7061 74LS90 74LS390 74LS93 74LSOO 74LSOO 8291 75160A 75161A 74LS365 7406 40948 40948 AD7533 40948 LM747EN 40948 AD7533 LM747EN Ref...

Page 109: ...u200 10102 Ko500 4090 Item Description 1 Input circuit shield 2 Ground clip 3 84 40 x aLG Phil Pan Hd SEMS ground clips input circuit shield to mother board 4 Heat sink 5 4 40 x Yi LG Phil Pan Hd SCR...

Page 110: ...N Y I M l l Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 111: ...it i 5 3 I 0 D Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 112: ...II Z x j c 1 z p I s 8 I IIttTtiii i Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 113: ...I DI I Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 114: ...I ii1 I I I IA1 14 I I I I I 1 I t Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 115: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 116: ...1 J ul L I Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 117: ...LED 1 G Phil pan Hd SCR ground clip to display board 4 split rin lockwasher ground c IP to display board H Part Number K7lOO L561 Pwl KIZOO 1080 KIZOO 1090 SW 435 m 22 3 637 320 4 40x PPH 4 SPLTRGLKW...

Page 118: ...ABLE PARTS 1 I I I 1 Cl2 Cl3 KI m r 1 Cl J Figure 7 3 Display Keyboard and Control Component Location Drawing 7 26 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisan...

Page 119: ...5 E E 13 n 17 n L r i 1 I Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 120: ...REPLACEABLEPARTS CR6 CR II m 5062 2835 L Figure 7 5 Model 7751 Component Location Drawing 7 29 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 121: ...REPLACEABLE PIRTS 5 r i P Figure 7 6 Model 7751 Schematlc Diagram Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 122: ...CEABLE PARTS A REF IN OUT L SWI I 1 YI IOMHz TCXO 026A I 1 Figure 7 7 Model 7752 Component Location Drawing 7 31 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg...

Page 123: ...I P e f N I 6 4 Flgure 7 8 Model 7752 Schematlc Diagram 7 32 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 124: ...REPLACEABLEPARTS ASSY 6100 4070 Flgun 7 9 5ppm Oscillator Component Location Drawing 7 33 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 125: ...REPLACEABLE PARTS c J iq Figure 7 10 5ppm Oscillator Schematic Diagram 7 34 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 126: ...ns A and B A Top cover B Shield top cover REAR PANEL Rear panel assembly contains A thru T A Rear panel 8 8 32x LG Phil Pan Hd Scr rear panel to top and bottom cover C Transformer Tl D Transformer Cov...

Page 127: ...UT line filter and line selector to rear panel Q Fuse carrier body Hardware kit IEEE connector to rear panel R Fuse carrier Fuse 0 3Ai115V or 0 15Ai23OV 4 4 4Ox hPI H 2 617 319 4 4 40 KEPNIJT 3 6 32 K...

Page 128: ...To exit the program type in EXIT at the command prompt and press the return key PROGRAM COMMENTS 10 20 ii 50 60 70 80 CLS NA GPIBO CALL IBFIND NA BRDO NA DEVl5 CALL IBFIND NA M775 V 23 CALL IBI AD M77...

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Page 130: ...Rate 2 10 Number of Displayed Digits 2 10 Trigger Levels 2 11 User Gate 2 9 User Delay 2 10 Data Control B 3 19 3 28 3 29 Default Conditions 3 15 Delay I 3 18 3 23 Delay Time W 3 18 3 22 3 23 Devive C...

Page 131: ...Test Equipment 6 9 Remote Enable REN 3 13 Replaceable Parts 7 1 Reset Key 2 2 2 5 Safetv Svmbols and Terms I 1 Sele ve Device Clear SDC 3 15 Sele ve Device Clear SDC 3 15 Self Test J 3 19 3 27 Self Te...

Page 132: ...ot Also describe signal source Where is the measurement being performed factory controlled laboratory out of doors etc What power line voltage is used Variation Frequency Ambient Temperature Variation...

Page 133: ...s SAAL I2 91sRue Lhon Blum S P 60 91121 Palaisaau Cedex I 01 l 61 66 Telex 600 933 RETHERLANDS Keithley Instruments 9V I ArkalsadiJk 4 Postbus 669 I4200 AN Gorincham I 0 1930 26677 Telex 24 684 SWITZE...

Page 134: ...service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE IN...