Keithley 236, Service Manual

Page 1: ...nit and Model 237 High Voltage Source Measure Unit Service Manual Publication Date October 1991 Document Number 236 902 01 Rev D 1 F fl r fl i n i ri n j o T Ij LI Lt U u ii UI LI LI U _I rn i i Conta...

Page 2: ...ES NEITHER KEITHLEY INSTRUMENTS INC NOR ANY OF ITS EMPLOYEES SHALL BE LIABLE FOR AN DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING 01ff OF THE USE OF ITS INSTRUMENTS AND SOFTWARE...

Page 3: ...Service Manual Model 236 Source Measure Unit Model 237 High Voltage Source Measure Unit 01990 KeitbleyInstruments Inc AU Rlght Reserved hstr men6DfrIson cieveland Ohio U S A DocumentNnbec236 902 O1...

Page 4: ...All Keithley products are trademarks or registered trademarks of Keithley Instruments Inc Other brand and product names are trademarks or registered trademarks of their respective holders...

Page 5: ...FUNKENTSTOERBEST1UNGEN SER GESAMTEN ANLAGE J DER DIESES GERAET BETRIEBEN WWD IST DER BETREIBER VERANTWORTLICH Keithley Instruments Incorporated CERTIFICATE BY MANUFACTURER IMPORTER This is to cerUfy t...

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Page 7: ...or discon necting cables orjumpers Also keep the test fixture lid closed while power is applied to the device under test Safe op eration requires the use of the lid interlock Do not touch any object w...

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Page 9: ...ure lintensit6 ou choisit lintensit6 dc la source et mesure la tension CONFORMIT1 COMPLIANCE Vdrifie le niveau dc conformit et mesure la plage Changer le niveau actuel et la plage en utilisant le com...

Page 10: ...e 23612371238 de test Source 1 8006 MesureV Soie basse Branchements de dtection locale en utilisant le dispositif de test mod e 8006 ModIe 23812371238 Branchements de dtection Ioigne en utlUsant un di...

Page 11: ...Bestimmt Quellenspan nung und Me strom oder Quellenstrom und Me spannung BEREINSTIMMUNG COMPLJANCE Pr ft die Stufe der bereinstim mung und den Me bereich Sie ndern die gegenw rtige Stufe oder den Bere...

Page 12: ...sse bei Vetwendung von Pr fger t Modell 8006 Modell 23612371238 quivalente Stromkreise Modell 8006 ACHTUNG An Sicherheitsmasse angesch ossen 236 237 238 Modell 8006 ACHTUNG An Sicherhetsmasse angeschl...

Page 13: ...nsit o sceglie l intensit della sorgente e misura la tensione FUNZIONE FLTNCT1ON Sceglie II funzionamento a corrente continua 0 a scansione CONFORMITA COMPLIANCE Verifica II livello di conformit e mis...

Page 14: ...dello 8006 Allacdamenti pid ModeUo 8006 AflENZIONE allacciare alla massa di scurezza 23612371238 Modello 23612371238 Schema degli allacciamenti AflENTONE aflacciare afla massa di sicurezza Circuiti eq...

Page 15: ...j L J Q N J L O J 0 J a 6 D N rjj N N R Z r __ 6 J I4 N N r z 4 6c Nt N L J J J J kU r N 4 r b 4 s L t 4G i L g IJj L1L i L L k 4 _ ia i 6 r s 4 jn 4J i C D 1J pz b N 1 4 ApE J _ N r h N J N r JIk Eu...

Page 16: ...o 4 J w ii 4 H 1 0 flll 4 H Ok 41 dl Co 9 rH lj jw J oo dl 4 3 dl CO 0 9 4 7 rH 9 l 1 1111 t1 4 3 0 r 3 0 OCf c c co v cD _ 4 1 0 00 19 99 g 2 o 99 99 H 111 Co 0 CD 0 0 0 cD a a 99 99 111 3 0 0 0 3 CD...

Page 17: ...ria o dc fuente y corriente dc medida o corriente dc fuente y tensi n dc medida DOCILIDAD COMPLIANCE Verifica cl nivel dc docilidad y ei margen dc medida Cambiar ei nivel y margen en curso con la ayud...

Page 18: ...nexiones de detecci n remota con probador modeio 8006 Modeio 23612371238 236 237 238 Probador 8006 Esquem tico de las conexiones DUT Aparato en periodo de pruebas Modelo 8006 ADVERTENCA Conectar a una...

Page 19: ...00 mV 10 mV O035 lOOmV 10 Output current n Fiill scale on selected current range 1 Specifications apply for 5 digit resolution For 4 digit resolution add lOOppm of range 2 Assumes remote seine for 1 1...

Page 20: ...dual output resistance as a voltage source is O 52 GUARD Output Resistance l2k2 Maximum Output Current 2mA Offset Relative to Output HI 2mV max ISOLATION Output LO to chassis Typically 10b02 in parall...

Page 21: ...lOOmA Source Range Verification 1 20 SECTION 2 Calibration 2 1 INTRODUCTION 2 1 2 2 RECOMMENDED CALIBRATION EQUIPMENT 2 1 2 3 ENVIRONMENTAL CONDITIONS 2 2 2 4 WARM UP PERIOD 2 2 2 5 CAL LOCK 2 2 2 6...

Page 22: ...ck 4 2 4 2 2 Output Stage 4 4 42 3 V I Feedback 4 6 4 2 4 Resonant Converter Model 237 4 8 4 3 A D CONVERTER 4 8 4 4 DIGITAL CIRCUTTRY 4 9 44 1 I O Controller 4 9 4 42 Source Measure Controller 4 10 4...

Page 23: ...2 4 Figure 2 3 Setup for Volts Calibration 2 7 Figure 2 4 Setup for lOOmA Range Calibration 2 10 Figure 2 5 Current Ranges Calibration lnA to lOmA 2 12 Figure 2 6 Ui Error Status Word 2 15 Figure 2 7...

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Page 25: ...Verification inA to lOmA 1 17 SECTION 2 Calibration Table 2 1 Required Test Equipment 2 1 Table 2 2 Specifications For Alternate Equipment 2 2 Table 2 3 Model 263 I Source Characterization 2 5 Table...

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Page 27: ...to be used with grounded outlets When proper connections are made instrument chassis is connected to powerline ground Failure to use a grounded outlet may result in injury or death due to electric sh...

Page 28: ...proce dures forverifying the one year accuracy specifications of the Model 236 237 using the equipment listed in Table 14 The allowable reading limits in these proce dures include error that could be...

Page 29: ...193A as follows A At the SENSE 1 HI terminal of the test socket disconnect the jumper whose other end is con nected to BINDING POST 2 on the Signal Panel B Connect that jamper to the SENSE 2 LO termi...

Page 30: ...fety Ground A Connections Model 263 Source Model 8006 Test Fixture Ground Link Installed OUTPUT 263 Source Source 1 COMMON Source Hl Sense Source LO Sense n Volts Sense 7 193ADMM Measure f2 and V B Sc...

Page 31: ...el 263 to source 9O OOOiA on the 200j tA range and enable OPERATE 22 Record the voltage measurement from the Model 193A and caiculate the current Vk2 ______________ mV I9pA IS the characterized curren...

Page 32: ...resistor and in stall the 1O2 resistor R48540 38 On the Model 193A DMM disable ZERO and seledt the 200mv DC range 39 While in standby set the Mode1263 to 9 0000mA on the 2OmA range 40 Zero the Model...

Page 33: ...ION 1 Performance Verification nterlock Cable z p F __H z F 8006 Test Fixture A Connections Waming to Safety Ground Figure 1 2 Setup for Common Mode Verification Shorted Output B Schematic Equivalent...

Page 34: ...ble 14 Use the ifiter ifthe read ing is noisy 7 Press the SELECT 4 button to select the 11V range and verify that the DMM readingis within the allow able limits in Table 1 4 8 Using Table 1 4 as a gui...

Page 35: ...measurement range 4 Place the calibrator and the Model 236 237 in oper ate 5 Verify that the measured voltage reading on the Model 236 237 is within the allowable limits listed in the Erst entry of T...

Page 36: ...ble 9 Repeat step 8 using a calibrator output of 4V 10 Using Table 1 5 as a guide measure calibrator out puts of 10V 100V and 1000V Model 237 only 11 Place the Model 236 237 in standby 8006 Test Fixtu...

Page 37: ...sensing hazardous voltage may be pre sent on the SENSE and OUTPUT terminals when the unit is in operate regardiess of the programmed voltage or current To avoid a possible shock hazard always hirn of...

Page 38: ...4 Setthe compliance limit ofthe Mode1236 237 to lnA on the inA measurement range and enable OPER ATE Verify that the current measurement on the Model 236 is within the allowable limits listed in the f...

Page 39: ...IO9M 0 0004 IO 9A 6OpA 1 i LA jiA O 90000iiA 87OpA Io 9 O OOO4 Io9 6OpAJ iiA _ jiA O 90000jiA 87OpA lOjiA I9 O OOO35 I9 7OOpA1 __jiA _A 9 0000j tA 8nA I 9 A 0 00035 I 9 iA 700pA 1 iiA iA 9 0000pA 8nA...

Page 40: ...0006mA 2nA O 90000nA inA O 8972OnA to O 9O28OnA 2nA O 90000nA inA O 8972OnA to O9O28OnA 2OnA 9OOOOnA lOnA 972OnA to 9 O28OnA 2OnA 9 0000nA lOnA 972OnA to 9O28OnA 200nA 9OOOOnA lOOnA 898O5nA to 90 195n...

Page 41: ...ace both the Models 236 237 and 263 in operate and disable ZERO CHECK on the Model 617 Verify that the reading on the Model 617 is within thelimits specified in the table 12 Place the Model 617 in zer...

Page 42: ...erification Eiectrometer Measure 1 B Schematic Equivalent Figure 1 7 Setupfor Low Current Source Ranges Verification inA to lOmA OUTPUT COMMON 617 Electrometer Note 617 GUARD dualled 2361237 OUTPUT H...

Page 43: ...OmA 200 OnA to 200 OnA 2jiA 2nA Standby lOmA OmA 2 000jiA to 2 000jiA 2OpA 2nA O 9nA inA O9nA 315OpA to 3J5OpA O 9nA O9nA 200pA 2OnA 9nA lOnA 9nA 29OOpA to 29 00pA 9nA 9nA 200pA 200nA 9OnA lOOnA 9OnA...

Page 44: ...ading I on the Model c 236 237 is within the following limits 1 While in standby set the Model 236 237 to source OV on the 1 1V source range and set compliance to lOOmA 1236 I 9OmA O 0008 I 9OmA 6 tA...

Page 45: ...DCCalibrator Source 2500 E Current Calibrator Source 1 IN OUT 1 93A DMM 1O2 236 237 Measure 1 OUTPUTFU T 8 Schematic Equivalent Figure 1 8 Setup for lOOmA Measure Range Verification Waming to Safety...

Page 46: ...lowing steps to verify the lOOmA source 10 Verify that the actual current I 9o is within the fol range lowing limits 1 While in standby set the Model 236 237 to source OmA on the lOOmA source range an...

Page 47: ...SECTION 1 Perforinance Verification 121...

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Page 49: ...d Operation of the Model 236 237 Refer to the Model 236 237 Opera tor s Manual for complete information 22 RECOMMENDED CALIBRATION EQUIPMENT Table 24 lists recommended calibration equipment Note that...

Page 50: ...it takes one additional hour to stabffize a unit that is 10 C 18 F outside the specified temperature range 25 CAL LOCK A switch CAL LOCK accessible through the rear panel with a thin shaft screwdrive...

Page 51: ...D termi nals of the Model 236 237 5 Set the Model 193A to the DCV function and the 200mV range and disable ZERO 6 To cancel any offset zero the Model 193A by short ing its input VOLTS HI to LO and ena...

Page 52: ...to Safety Ground A Connections Model 8006 Test Fixture Model 263 Source OUTPUT 263 Source Source 1 COMMON 2 Volts Sense 2 LO Source HI Sense Hl Sense LO B Schematc Equivaent 193A DMM Measure 2 and V F...

Page 53: ...del 263 lt is used to calibrate the 1OOtA range of the Model 236 237 Using a pendil record the calculated value of I9OA in Entry 3 of Table 2 3 23 Place the Model 263 in standby 24 Set the Model 193A...

Page 54: ...TE To store calibration constants in nonvolatile memory place the CAL LOCK switch to the unlocked in position see paragraph 2 5 With the switch in the locked out position calibration will be temporary...

Page 55: ...00036 V send C3 00036X or C3 36E 5X over the bus 6 Remove the short Jumper A and send the following command to source 0V on the 1 1V range 8 Send the following command to source 1V on the i iv range...

Page 56: ...the measured voltage reading VMSR over the bus with the C21 command as follows 15 Send the measured voltage reading VsR over the bus with the Cli command as follows C21 VMsiX Calibrate gan 110V source...

Page 57: ...below C3OX Source 0000 0V R 10 35 Send the measured voltage reading VMSR over the bus with the C31 command as follows Perform the following steps to calibrate the lO0mA source and measure range C31 VM...

Page 58: ...______________________ mA R 100 9 Send the calculated current reading I OmA over the bus with the C35 command as follows 10 Send the following command to source 9OmA C36X Source 90 00mA lt From the di...

Page 59: ...l 236 237 wffl return to normal Operation 16 Caiculate the actual offset current Lo using the 23 Place the Model 236 237 in standby following caiculation v 1 o 2 6 4 Low Current Ranges Calibration LOm...

Page 60: ...brate gain lOnA measure range Note Calibration takes 10 seconds o complete 11 Place the Model 263 in standby and set it to 9OnA 12 Send the following command over the bus C46X Calibrate offset lOOnA m...

Page 61: ...asure range After sending the C59X command the Model 236 237 will return to normal operation 29 Place the Model 263 in OPERATE 30 Send IO9mA from Table 23 over the bus with the C55 Place the Models 26...

Page 62: ...re gain calibration error Calibration is attempted using a value that is not within ac ceptable limits The transmitted value is ignored and a default cal constant value is used in stead Possible probl...

Page 63: ...us word also provides the status of the CAL refer to Figure 26 to determine the type of error LOCK switch Identifier ERSbbb bbb TERM EOI Most Significant Bit J LLeast Significant Bit I1 26Bit ASCII St...

Page 64: ...e recommended equipment c s p n n a b TERM EOI and software per manufacturers instructions and type in 1 1 the program __ 0 Unit is Uncalibrated 1 Unit is Calibrated 0 Ca Lock Switch is Unlocked 1 Ca...

Page 65: ...T PRH 01 RENOTE PRINT 01 GLEAR PRINT 01 TINE 01ff 30 PEIlT 01 LOL CI LOCATE 12 20 PRIWI Nodl 2361237 Calibration Progra LOCkTE 22 12 PRINT NOTE R f r to S rvio Nanual for coapl t Information LOCATE 14...

Page 66: ...e only temporary PRINT cl 1 GOSUB KeyCheck END IF ENABLE BUS SRQ ERROR TRAPPING ON PEN GOSUB ErrCheck Point to error routine PEN ON 1 Enable error deteotion PRINT 1 ARM SRQ Enable SRQ tk HAIN PROGRAM...

Page 67: ...l ibration PRINT Press ESC to abort procedure and restart program FOR 1 2 TO Cmax Loop for all cal polnts IF 1 26 THEN PRINT 1 OUTPUT 1O R5X Put 193A on 1000V range IN INKEY IF IN CHR 27 THEN PRINT 11...

Page 68: ...nd value 1 6 C 1 1 msr X Send ca 1 val ue to 236 1237 Loop back for next cal point 16 CS9X Exit cal procedure I6 NOX Put 236 237 in standby IO ZOR5X Disable I93A zero 1000V range CalLow CLS PRINT lnA...

Page 69: ...FOR 1 42 TO 57 Loop for all cal points IN INKEY IF IN CHR 27 THEN PRINT 1A1 CLEAR GOTO SeiCal PRINT 1 OUTPUT 08 V Ical J X Program 263 current value GOSUB Delay Allow settling time PRINT 1 1 OUTPUT 1...

Page 70: ...or non SRQ int nupt S rial poll 2361237 Input nrial p011 byte Check for error q Inoresent error oounter Request error word Input error word Check if unit ii a 236 or 237 Request sodel nueber status Ad...

Page 71: ...ge approx O 9uA DATA 20uA rang approx 9uA DATA 200uA rang approx 90uA DATA 2A rang approx O 9mA DATA 20 A ranga approx 9mA Curr nt aal ibration fl DATA O 9 9 9E 9 90 9 O fl 6 9E 6 90 4 O 91 39 3 1 Pro...

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Page 73: ...e pressure on the holder and its internal spring will push the fuse and carrier out of the hoMer 2 Remove the fuse and replace it with the type recom mended in Table 3 1 CAUTION Do not use a fuse with...

Page 74: ...pacity to maintain data for one year of continu ous power off or two years if the Mode1236 237 is on for 12 hours every day The battery by itself has a shelf life of eight years Although the Model 236...

Page 75: ...Figure 32 Digital Board Pl 9 SECTION 3 Maintenance IEEE Connector 33...

Page 76: ...er that it is presented since many steps depend on a previously per formed procedure Procedures pertaining to the Model 237 should be ignored if servicing a Model 236 Refer to Figures 3 2 through 3 6...

Page 77: ...esonant converter board out of the instrument case Note When reinstaffing the resonant converter board make sure the two cable clamps which protect the wires are installed in the slots of the shield 5...

Page 78: ...nector for the OUT PUT LO banana jack from J27 F Disconnect the SMB triax connectors from Jil J12 and J13 G Place the instrument on its right side and from the case bottom remove the seven screws that...

Page 79: ...nt Two of these screws also secure the fan filter assembly to the rear paneL D To provide clearance pull the rear panel out ward a little and then disconnect P21 Trigger and Interlock from J21 on the...

Page 80: ...els as follows a From inside the case place a thin blade screwdriver into one of the holes where the decorative strip is secured b Carefully push outwards until the strip dis engages from one of the f...

Page 81: ...k 0 w cD N Co 3 ro...

Page 82: ...ircuit sec tion Isolation of a specific component is left to the techni cian Note that schematic diagrams and component loca tion drawings which are an essential aid to troubleshoot ing are included i...

Page 83: ...y be defec tive Note that the Source Measure indicator light blinks IoU DPRAM FAILED The dual port RAM for the I O controller has failed making the instrument non func tionaL The DPRAM U12 may be defe...

Page 84: ...converter is locked in the zero phase 5 The instrument can be placed in any of the other A D phases A D REF A D VOLTS and A D AMPS with the use of the SELECT buttons 6 To exit from the A D test mode p...

Page 85: ...g Switch Drive U45 U48 and U49 OV switch closed 5V switch open Other control lines that are not used to drive switching devices are described as follows COMPLIANCE Used for compliance detection When t...

Page 86: ...Relay states with 236 237 in OPERATE In standby relays go to local sense states Output For safety there are two relays that are used to disconnect OUTPUT HI and SENSE HI from the rear panel output tr...

Page 87: ...roubleshooting data found in Tables 39 and 3 10 Note The firmware that controls the Model 236 237 is contained in two EPROMs U17 and U31 If it is neces sary to replace one or both of the EPROMs make s...

Page 88: ...n pressed Data input VIA when rotary knob turned Data output to display Bus clock Reset line goes bw momentarily on power up INT line RESET line Clock ATN line Handshake sequence S M controller VIA da...

Page 89: ...it drivers U7 pins 47 14 17 U8 pins 4 and 5 4 P24 pin 10 Depress any switch located in first column of Pulse present when button pressed switch array on schematic 236 116 5 P24 pin 9 Depress any switc...

Page 90: ...digital sections are electrically isolated from each other This section contains a general functional description of by the use of opto4solators for control and communica the Model 236 237 Detailed sc...

Page 91: ...volt age for zero output will result with a 0V output from the respective DAC Programmingfor a full scale output wffl result with a 40V output from the respective DAC The output voltage from the 1 DAC...

Page 92: ...ill go posi tive keeping CR12 reverse biased As a result the V CLAMP remains off Current from 10V REF will flow into the 1 CLAMP which is turned on remember the other clamps are off As a result the fe...

Page 93: ...is configured as a non4nverting am plifier for V FEEDBACK On the 1 1V range the FET switch Q33 is closed providing xlO gain On the higher voltagc ranges the FET switch is open configuring U9B as a umt...

Page 94: ...the Model 237 func tions the same as the one for the Model 236 see expiana tion for Model 236 output stage However additional circuitry is used to switch over to the 1200V supplies needed for programm...

Page 95: ...ck voltage As a result the system cannot adjust itseif ac cordingly to maintain a steady voltage output The Model 236 237 resolves this problem by using cir cuitry that in effect shunts the current ra...

Page 96: ...put of the xl differentialoutputis then fed back to the V I Control and Readback circuitry op amp U2 is configured as a unity gain amplifier that serves as a buffer between the output and volts rangin...

Page 97: ...C28 For example with the secondary of T2 at 245V C28 wffl charge to 245V When the voltage on T2 reverses direction to 245V the result is two volt age sources T2 and C28 in series The voltage at V is...

Page 98: ...d by two 6809 8 bit 2MHz N MOS microprocessors These two microproces sors coordinate all instrument functions These include running the display and keyboard servicing the IEEE 488 interface and contro...

Page 99: ...e another to provide immunity from false giitching The outputs of the compiimentary opto couplers are de coded by programmabie iogic device Ui PAL 20L10 From Ui the signais are sent to various piaces...

Page 100: ...tic is capable of delivering 5V at 1 2A to power alldigital and front panelcircuit components Full wave rectification is provided by the bridge rectifier CR1 Capacitors C106 and C107 provide spike sup...

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Page 102: ...ains information on miscellaneous parts that do not pertain to any of the pc boards 53 ORDERING INFORMATION To place an order or to obtain information concerning re placement parts contact your Keithl...

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Page 104: ...R28 R32 R763 3K R29 R31 R33 R34 R 76 82 Ui IC 412 U2 1C407 U3 IC 583 U4 U7 U8 IC 578 U5 U6 U9 U1O IC537 DSIO DS28 DS1 DS9 D529 P24 C 365 O1 C 31440 RF 28 PL 71 DD39 PL81 MK 22 1 CA279 s1 S2 S34 RES 8...

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Page 106: ...C89 C93 C74 C87 C98 C99 CAP 33pF l0 1000V CERAMIC CAP 4700uF 20 l00 63V ALUM ELEC CAP OluF 20 50V CERAMIC CAP JuF 20 50V CERAMIC CAP OluF 20 50V CERAMIC CAP luF 20 50v CERAMIC CAP O2uF 20 500V CERAMIC...

Page 107: ...172 R1 RES 430 5 1 4W COMPOSITION OR FILM R 76 430 R15 R17 R50 R91 RES 1K 5 1 4W COMPOSITION OR FILM R 76 1K R16 R23 RES NET 3 3K 5 11W TF 140 R2 R30 RES 330 5 1 4W COMPOSITION OR FILM R 76 330 R20 R2...

Page 108: ...N OR FILM R 76 270 s1 SWITCH PUSHBUTrON 6 POLE SW466 S2 SWITCH SLIDE DPDT SW476 S3 SWITCH PUSHBUYrON 2 POLE SW469 T1 TRANSFORMER TR261 TRANSFORMER JAPAN TR262 TP1 TP2 CONN TEST POTNT CS553 Ui IC PAL 2...

Page 109: ...4 IC 540 U51 U57 U59 IC HEX INVERTER 74HC04 IC 354 UM IC QUAD 2 INPUT NAND 74HC00 IC 351 U56 IC DUAL LOW NOISE OPAMP NE5532 IC5O1 VR1 IC 5V REGULATOR 3A LM323 IC 240 VR2 IC 5V VOLTAGE REGULATOR 7805 3...

Page 110: ...IC C 372 1OP C145 C146 CAP luF 20 50V CERAMIC C365 1 C148 C149 CAP l000pF 1 50V CERAMIC C3474OOOP C156 CAP 150P 1 100V CERAMIC C372 15OP C157 CAP 68OpF 1O 1000V CERAMIC C6468OP C158 CAP 47OpF 5 500V P...

Page 111: ...Q39 Q40 TRANS N CHANNFL FET TG 128 Q41 Q42 Q45 Q47 TRANS NPN CATV SILICON MPSH17 TG 221 Q49 Q50 TRANS N CHANNEL JFET TG 198 Q6 Q7 Q10 Q14 TRANS SELECTED N CHANNEL JFET 5434 TG 179 Q33 Q8 TRANS P CHANN...

Page 112: ...UND R 38440J01K R38 RES 998K 1 1 4W METAL FILM R264998K R39 RES 988M 0 5 1 2W 1200V METAL OR FILM R2659 88M R4 RES 5 6K 5 1 4W COMPOSITION OR FILM R76 5 6K R40 RES 1G 2 1 5W HY MEG R2894G R41 RES 100M...

Page 113: ...UAD 2 1 LINE DATA SEL MULT 74HC158 IC 587 U32 IC QUAD LOW POWER JFET LF444 IC 329 U33 IC QUAD 2 INPUT P05 AND 74HC08 IC 465 U34 IC DUAL D TYPE FLIP FLOP 74HC74 IC 337 U37 IC DARLJNGTON ARRAY 2003 IC 2...

Page 114: ...Q18 Q23 TRANS N CHANNEL FET 1RF630 TG 214 Q19 Q25 TRANS PNP POWER MJE350 TG 210 Q21 Q24 TRANS NPN SILICON MJE34O TG 209 Q27 TRANS PNP SILICON 2N3906 TO 92 TG 84 Q7 Q8 TRANS P CHANNEL 200V FET 1RF9630...

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Page 116: ...3 TRANS N CHANNEL FET MTP2N5O TG 206 Q16 Q21 Q24 TRANS NPN SILICON MJE34O TG 209 Q20 Q22 Q26 Q28 TRANS NPN SILICON 2N3904 TO 92 TG 47 Q27 TRANS PNP SILICON 2N3906 TO 92 TG 84 Q29 Q31 TRANS NPN SILICON...

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Page 118: ...R8 DIODE SILICON SCHOYFKY Sffl60 RF 7O CR9 CR26 DIODE SILICON 1N4937 RF 71 FOR P23 KEY MOLEX CS345 J17 MODWIED CONNECTOR 59O314 5 L1 CHOKE l000uH CH374 L2 CHOKE CH 46 J_3 CHOKE lQuH CH 39 1 I3 CONNECr...

Page 119: ...205 12 TRANSFORMER TR 257 TP1 TP2 CONN TEST POINT CS 553 U1 U5 IC RETRIGGERABLE MONO MLJLTIVIB 74HC123 IC 492 U2 IC DUAL POWER MOSFET DRIVER TSC426 1C437 U3 IC VOLTAGE REGULATOR LM317T IC 317 U4 IC 1...

Page 120: ...BOARD 236 37 WINDOW RED 236 314 1 INTERLOCK CABLE 3M 236 ILC 3 TRTAX TO TRIAX CABLE 7078 TRX 3 TOP COVER 236 324 DECORATIVE STRIP ASSEMBLY 193 323 BOTFOMCOVER 228 313 DECORAT1VE STRIP ASSEMBLY 193 322...

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