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HP 5363B, Руководство по эксплуатации и обслуживанию

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OPERATING  AND  SERVICE  MANUAL 

5363B 

TIME  INTERVAL  PROBES 

S E R IAL  PREFIX:  2208A 

T h i s   m a n u a l  a p p l i e s  to  S e r i a l   P re f i x  2208A,  u n l ess 
a c c o m pan ied  by a  M a n u a l  C h a n g e  S heet i n d i cati n g  
otherwise. 

Fi rst  Ed i t i o n   - Dec e m b e r   1 982 

© C opyright  1982 

by 

HEWLE T T-PA CK A R D   C O MPA NY 

5301  Stevens  Creek  Boulevard 

Santa  Clara,  California  95050 

MANUAL PART  NUMBER 

05363-90020 

Microfiche  Part  Number 

05363-90021 

A ll  Rights  Reserved 

H EWLETT 

PACKARD 

Содержание 5363B

Страница 1: ...n l ess accom pan ied by a Manual Change S heet i n d i cati ng otherwise Fi rst Ed i t i o n Dec e m b e r 1982 Copyright 1982 by HEWLE TT PA CKARD C OMPA NY 5301 Stevens Creek Boulevard Santa Clara California 95050 MANUAL PART NUMBER 05363 90020 Microfiche Part Number 05363 90021 A ll Rights Reserved rl O I H EWLETT PACKARD ...

Страница 2: ...ethods Storage OPE R AT I O N 3 1 I nt roduction 3 3 Controls I nd i cators and Connectors 3 5 Types of Operation 3 7 Operation U nder Local Control 3 1 0 C a l i b ration Proced u res 3 1 1 Trig g e r Level Cali b ration 3 1 3 Time Zero Cal i b ration Proced u re 3 1 4 M i n i mum Requi rements for S i g n a l Measu rements 3 1 6 Proced u res for Operation U nd e r Loca l Control 3 1 8 R ise Time...

Страница 3: ...6 4 V I I M A N UAL C H A N G ES 7 1 7 1 I nt roduction 7 1 7 3 M a n ua l Changes 7 1 7 5 N ewer I n st ruments 7 1 7 7 Older I nstruments 7 1 V I I I S ERViCE 8 1 8 1 I ntrod uction 8 1 8 3 Safety Consid e rations 8 1 8 9 Theory of Operation 8 2 8 1 1 Trou bleshooti ng 8 2 8 1 3 Schemati c D i a g ram Fold outs 8 2 8 1 5 Recommended Test Eq u i pment 8 2 8 1 7 Service A i d s 8 2 8 1 8 Poz i d r...

Страница 4: ...4 Flowc h a rt Operation 8 28 Flowc h a rt S u b routi nes 8 28 Tro u bleshoot i n g 8 3 1 State Machi ne Tro u b leshoot i ng Tec h n i q ues 8 31 Signature Analysis 8 32 Log i c Ana lyzer 8 32 Clock Stopped 8 32 C l oc k R u n n i ng 8 32 Flowc h a rt Documentation 8 36 LIST OF TABLES Title Model 5363B Specifi cati ons Equi pment Suppl ied Accessories Avai l able R ecommended Test Eq u i pment I...

Страница 5: ...1 3 8 1 4 8 1 5 8 1 6 Cabi net Mechan i ca l Pa rts 6 1 8 Schematic D iagram Notes 8 3 Dig ital Bus Con nector Pin Designations 8 4 5363 B Overa l l Bloc k Diagram 8 1 5 Simpl ified 5363B I n put Circuit 8 1 8 Flowchart Examples Command 8 25 Flowchart Examples Qualifier 8 27 Main Prog ram Block Diag ram 8 29 Extender Boa rd PIN 5060 0049 Mod ification 8 35 Main Prog ram I d le Loop Routine Flowcha...

Страница 6: ...R SUPPLIED AND PROTECTIVE COVERS RE MOVED FROM THE INSTRUMENT ENERGY AVAILABLE AT MANY POINTS MAY IF CONTACTED RESULT IN PERSON INJURY CAUTION BEFORE SWITCHING ON THIS INSTRUMENT 1 MAKE SURE THE INSTRUMENT IS SET TO THE VOLTAGE OF THE POWER SOURCE 2 ENSURE THAT ALL DEVICES CONNECTED TO THIS INSTRU MENT ARE CONNECTED TO THE PROTECTIVE EARTH GROUND 3 ENSURE THAT THE LINE POWER MAINS PLUG IS CON NECT...

Страница 7: ...Model 53638 Genera l I nformation 1 0 MODEL HP 53638 CORD SET 8120 1378 Figure 1 1 Model HP 53638 and Equipment Supplied ...

Страница 8: ...uentia l l y and i s d ifferent f o r e a c h i n st rument The contents o f this man ual a p ply to i n st ruments w i t h t h e seria l n umber prefi xi es I l i sted under S ER I AL P R E F I X on the t i t l e page 1 1 0 An i nstrument man ufactu red after the printing of this man ual may have a serial n umber p refi x that is not l i sted on the title page T h is u nlisted se rial n umbe r pr...

Страница 9: ...d After cal ib ration and within the range of 1 00 mV or 8 of signal peak Iwh i chever is g reater NOISE TRIGGER ERR OR ve 2 en2 volts where en effective rms noise of the 5363B input I typica l ly 1 25 1V e rms input signal noise for a 350 MHz bandwidth ENVIRONMENTAL Operating tempe rature O C to 55 C SUPPLEMENTARY PERFORMANCE CHARACTERISTICS i Describing nonwarranted typical performance parameter...

Страница 10: ...one probe can provide both a sta rt and stop sig nal to a cou nter or one probe can provide a sta rt sig na l a n d t h e othe r c a n provide a stop sig nal for a rise t i m e or t i me delay measurement respective ly 1 1 6 The probes have an i nput i m pedance of 1 Meg ohm and an i nput capacitance of 1 5 pF For use with either Hewlett Packard or Tektronix RF hard ware the ti p of the probe unsc...

Страница 11: ...e 1 2 l i sts the e q u i p ment suppl ied with the 5363 B and Tab le 1 3 l i sts accessories ava i lable An accessory kit for the HP 5363 B is a va i lable see Fig ure 1 31 and may be obtai ned from Hewlett Packard b y o rdering Accessory Kit Part No 1 0821 A Table 1 2 Equipment S upplied DESCRIPTION Detachable Power Cord 7112 feet i 229 cm long HP PART NUMBER 8120 1378 Ti lt Stand 1 460 1345 Gro...

Страница 12: ...erwise n oted Table 1 4 Recommended Test Equipment INSTRUMENT REQUIRED CHARACTERISTICS RECOMMENDED Precision Power S upply O SOV 3 S mV H P 61 1 SA Pulse Generator Transition Time SOOVIJ 1 S HP 801 3A1B Maxi mum Output 1 0 V across SO oh ms Counter Time I nterval 2 1 0 ns H P S370A Osci l loscope SO MHz H P 1 80A 1 80SA Feedthrough Termination 1 21 SO Ohms HP 1 0 1 00C Digital Voltmeter 0 to 1 00V...

Страница 13: ...ached ove r the probe tips when they are not i n use 2 5 PR EPARATI ON FOR USE Before connecting this instrument to an ac power line be sure that the line voltage selector switch on the rear panel is set to proper position as shown in Figure 3 2 2 6 Power Requirements and Line Voltage 2 7 This i nstrument operates on s i n g l e phase 1 OOV 1 20V 220V or 240V ac 5 1 0 volts at 48 440 Hz Maxi m u m...

Страница 14: ...ea rth g ro u n d See wa rn i ng Pa ra g raph 2 8 8120 1351 812 1369 N 8120 1378 8120 0698 8120 1689 N L E 8120 2014 POWER INPUT SOCKET Figure 2 1 Power Cable HP Part Numbers versus Mains Plugs Available 2 11 Operating Environment 2 1 2 Maximum and mi n imum allowable ope rating temperatu res a re l i sted in Table 1 1 If these limits a re exceeded at the i nstal lation site a u x i l i a ry heat ...

Страница 15: ...ovide dependable c ustom packag i n g on sho rt notice The fol l ow i n g general i nstructions s h o u l d be foll owed when repac kag i ng with comme rc ially ava i lable mate rials a If shi pping to a Hewlett Packa rd Service Offi ce or Center attach a tag i n d i cati ng the type of service req u i red you r ret u rn add ress HP model n umber a n d full serial number b W ra p t h e i nstrument...

Страница 16: ...rated u nd e r local f ront panel control or u nder remote control ler prog rammi ng control A l l f ront panel f u ncti ons can be prog rammed via the H P I B except the setting of the T I M E ZERO delay adjustment contro l 3 7 OPERATI ON U N D E R LOCAL CONTRO L 3 8 The fol lowing pa rag raphs desc ri be prelimi na ry set u p proced u res for operatio n under local control 3 9 Perform the fol lo...

Страница 17: ...hen the sWi tch i s l ifted u p I with probes i n se rted i n cali brat i o n jacks a fast r i se t i m e sig n al is se n t to perform the t i me zero cali brat i o n o T I M E Z ERO P U L L TO A D D 1 0 0 ns knob When t h i s knob is p u l led o u t a f i xed 1 0 n s delay i s added to the STO P c ha n n e l Rotat i o n of t h e knob g i ves m o re p rec i se d e l ay adju s t m e n t c o m pe n...

Страница 18: ...G TO SWITCH USE PROBE ACCORDING TO SWITCH X Y SLOPE High Low A L Low Low 8 R Low Low B R High High L Left STARTI Thumbwheel Switch R Right STOP I Thumbwheel Switch LEVEL SLOPE L Delay 8 R R Width 8 R R Correction Factor 8 R As set by Front Panel or Remote e HP 18 connector ADDRESS SWITCH Remote programming is accomplished via the HP IB through this connector The Listen address is set by selecting ...

Страница 19: ...een t ri g g e r ind i cators a re l i g hted d Release T I M E ZERO L EV E L switc h e Check that probe c han nel selection i nd icators of selected probes a re l i g hted I This i s t h e i n d ication that the Trigger Level Cal i b rati on i s completed NOTE If al l four probe select i n d i cators a re f lash i n g the cal i b rati o n has NOT been acco m p l ished 3 1 2 Sou rces of cal i b ra...

Страница 20: ...SPLAY RATE 12 O clock positio n ARM ING T I INPUTS START STOP LEVEL PRESET INPUT I MPEDANCE 5 0 o h m 1 10 1 AC D C DC START COM SEP SEP SLOPE F f Lift and hold T I M E ZERO L EV E L switc h STOP g Adj ust P U L L TO ADD 1 0 0 n s knob until 5370A Counter d i splay read s approximatel y 0 00 ns N OTE If the delay can not be zeroed out beca use of the nature of the test setu p I d iffe rent cable l...

Страница 21: ...ocedure 3 1 9 I n st rument Setup H P 53638 Time I n te rval P robes H P 1 82C Osc i l l oscope H P 801 38 P u l se Generator and H P 5345A Counter or H P 5370A Cou nte r o r H P 5335A Cou nten a re connected as shown i n Figure 3 5 Except for H P 53638 all i n st rument controls a re set as shown in Tab le 3 1 HP 53638 contro l s a re set as foll ows START STOP switches START STOP 1 2 A A 3 o o 4...

Страница 22: ... 6 o o T I M E ZERO PULL TO ADD 10 00 ns OUT Ifor H P 5345A T I M E ZERO PULL TO ADD 10 00 ns I N for HP 5370A or HP 5335A a Perform Tri gger Level Cal i b ration proced u re See pa rag raph 3 1 1 b Con nect H P 53638 A probe to special T fitti ng I H P 1 250 0655 8 N C a n d adapte r H P 1 250 0 2 1 6 at H P 801 3A OUTPUT connector c Measu rement displayed on H P 5345A Cou nter i s fa l l time p ...

Страница 23: ...RT STO P switches START STOP 1 A 6 2 3 o o 4 1 1 5 6 o o F H P 2 0 1 3 6 P U LS E DELAY switch is set as fol lows 35 n 1 a Perform Trigger Leve l Ca l i b ration p roced u re See pa rag raph 3 1 1 START and STOP slope setti ngs must be set as they w i l l be used b Con nect H P 5363 6 A probe t o H P 801 3 6 T R I G G ER OUTPUT c d 5345A Connect H P 5363 6 6 probe to H P 801 3 6 OUTPUT 1 Measureme...

Страница 24: ...PULSE DOU BLE NORM NORM PULSE DELAY V ERNIER N A PULSE WIDTH 1 0 1 m VERNIER CCW OFFSET OFF OUTPUT 1 A M PLI T U DE IV 0 5 1 0 VERNIER Set for 0 5 pulse o n scope NORM COMPL NORM I NT LOA D I N MODel5335A F U NCTI O N T I ME A B MODEL 182C GATE M O DE M I N NO DELAY M ATH FU NCTI O NS All off STATISTICS F U NCTI O NS M EAN C HANNEL A B I NPUTS LEVEL PRESET 1 M OHM 50 OHMS 50 OHMS SLOPE X10 ATTN AC...

Страница 25: ... pac kage i s bei n g used choose the add ress used by t h e prog ram c I nte rconnecti n g Cables Connect the 5363 B to the other devices using the fol lowi n g Bus cables LENGTH ACCESSORY N UM B ER 1 m i 3 ft I 1 0833A 2 m i 6 ft 1 1 0833 B 4 m 1 1 2 ft 1 0833C 1 2 m 1 5 ftl 10833 D The cable has a piggy bac k con nector o n each end so that cable s can be added to a device which a l read y has ...

Страница 26: ...SS SWITCH J ADDRESS SWITCHES ASCII ADDRESS CODES ASCII ASCII S HIT LISTEN TALK DECIMAL A2 Al ADDRESS ADDRESS EQUIVALENT 0 0 SP 0 0 1 A 2 1 0 B 2 1 1 C 3 0 0 D 4 0 1 E 5 1 0 F 6 1 1 G 7 0 0 H 8 0 1 I 9 1 0 J 10 1 1 K 1 1 0 0 l 12 0 1 M 13 1 0 N 14 1 1 0 1 5 0 0 P 16 0 1 1 Q 17 1 0 2 R 18 1 1 3 5 19 0 0 4 T 20 0 1 5 U 21 1 0 6 V 22 1 1 7 W 23 0 0 8 X 24 0 1 9 Y 25 1 0 Z 26 1 1 27 0 0 28 0 1 29 1 0 3...

Страница 27: ...cessa ry t o c o m pl etely dete rm i ne the 5363 B o pe rat i n g modes using the re mote p rogra m m i ng codes a Put the Bus i n to the Re m ote Enable state b y send i n g the Re m ote Enable Command set R EN low NOTE The tec h n i q ues for sen d i n g the Remote Enable Command i s a f u nction of the partic ul a r contro l l e r devices I i e calc ulator com puter etc b A d dress t h e 5363 ...

Страница 28: ...5 85 t 0 1 04 68 h Zero Delay When the additional 1 0 n s delay i s req u i red for the 5345A counter the following prog ram code i s sent Z ERO D ELAY ADD 1 0 n s D ELAY PR O GRAMMIN G CODES ASC I I L O CTAL 1 1 4 D E C I M A L 76 When zero delay is prog ra m med with the 5370A cou nter the fol lowing prog ram code i s sent ZERO D ELAY ZERO D ELAY PR O GRAM M I N G CODES ASC I I S O CTAL 1 23 D E...

Страница 29: ... DE LAY L 0 0 1 1 0 0 114 ZERO DE LAY S 0 1 0 0 1 1 123 CALIBRATE LEVE L 0 0 0 0 0 0 100 C LEAR CODES UNLISTEN 0 1 077 UNTAL K 1 0 137 u nderscore INITIALIZE P 0 0 0 0 0 120 Tll g g e r s e l e c t i o n rn ust p recede a l l o t h e r p ro g r a rn codes for selected c h a n n e l When 53638 IS s e n t t he I N I T I A L I Z E c o d e t h e f o l l owi n g p r o g ra rn I S s e l ected 8 p robes ...

Страница 30: ...us of the 5363 B level ca l i b rati o n See R EMOTE CAL I B R AT I O N d Serial Pol l Disable S P D Disables a n y status byte o utput f rom a n y device o n the bus This command should be i ssued afte r a status byte has been output onto the b us 3 34 Refer to Tab le 3 4 for a l i st of U n i ve rsal Prog ra m m i n g Codes 3 35 REMOTE CALIB RATION 3 36 Level ca l i b ratio n i s necessary when ...

Страница 31: ... pot cannot be re motely prog ra m med it m ust be considered in the c ontrol l e r software An example o f h o w t h e prog ra m c a n d o t h i s i s shown i n Exa m ple 1 A s a convenience it i s poss i b le to check and set the T I M E ZERO pot afte r it has been remotely p rog rammed by locally h o l d i n g the T I M E Z ERO LEVEL switch in the raised position with probes i nse rted i n the ...

Страница 32: ...l l owi ng exa m ple employs the 5345A Electro n i c Counter a n d the 9825A Cal c u lator p rog ram med to i nstruct the 5363 B Time I n te rval Probes via H P I B to re motely determ i ne the T I M E Z E R O D E LAY The measured delay i s i n put to the cal c u lator which com p utes and pri nts the ti me zero offset This offset can then be added to or su btracted f ro m the 5363B measurement th...

Страница 33: ..._ r _ H HH Pmgrams 5363 8 for A channel START OOOV 6 t r 1 0 A 1 EO 3 A 1 e 3 I J I i l 1 3 1 i II i l 1 3 If 0 2 1 II Ci 3 i II J 2 1 3 0 i N EG S lope B channel STOP OOOV N EG s lope 1 0 ns delay Read counter Display T in ns Print T in ns Prog ram Exam ple 1 3 47 R E MOTE CAL I B R AT I O N PROGRAM The fol lowing exa m p l e shows a remote ca l i b rati on of t h e 5363 B The 5363 B g oes i nto ...

Страница 34: ...R O L E V E L s w i tc h d o w n to g ro u n d t h e p ro b e ti p s T h e ca l c u lator wi l l d i s p l a y C A L O K a n d t h e va l u e of t h e s t a t u s b yte i n o c t a l 1 00 0 f c i 1 1 Cl 1 ii H t 5 J E 5 J 2 f 0 1 T i t o 3 i f I 1 C A H F E E 4 i f I 2 Ii E 7 p P H 1 7r E 5 i t t 1 6 A Cl C C U L E 1 Ci 1 t 3 t d F C A L E A I c i t c 1 1 n EO t I 1 2 1 f t 4 d f 3 t 0 1 4 1 d f T...

Страница 35: ...erational Ve rification proced u res Any e q u i p ment which sati sfies the c ritica l specifications g iven i n the tab le may be substituted for the recom mended e q u i p ment I nstrument Digital Multimeter Function Generator Oscil loscope Controller with H P IB Interface Pulse Generator Cables Tee B NC to Probe Adapter Feedthrough Precision Power S upply Counter Digital Voltmeter Power Splitt...

Страница 36: ...ram above 2 Set 331 2A as follows RANGE 1 M FUNCTION m OFFSET CAL AMPLITUDE 1 0V SYM CAL FREQUENCy 1 3 Set 53638 as follows START A 5 00 f STOP A 5 00 f 4 Set 1 725A as follows CHANNELS A and 8 Volts Div 0 5V Div CHANN E LS A and B Volts Div I n put I m pedance son TRIGGER A CHANNEL A B O N HORIZONTAL DISPLAY M A I N T I M E DIV 0 5 l s SWEEP M O D E AUTO 5 Verify that START and STOP output pulses...

Страница 37: ...prog ram runs 4 1 1 The test e q u i p ment setu p req u i red for each of the th ree T EST S E CT I O N S i s i l l ustrated in Figure 4 2 4 1 2 To perform the verification a Set the A D D R ESS switc hes o n the 5363 B to position i except dec i ma l equivalent 21 which i s the calculator add ress I in the range of 00 30 N O T E I f the ve rification p rog ram i s K E Y E D in press 9825A B R U ...

Страница 38: ...i t 2 0 0 0 d s o R TE l ig h t s h o u l d r e a i n o n w a i t 3 5 0 0 2 9 i f C l n to 2 3 D 3 1 s o C d SC i PO I l T 3 i f O s oc 3 o r t Z S C H EC f PO I N l 3 Z C L I B R re 3 1 a i t 3 5 0 0 d s P r o be s m u s t b e qr o u nd e i wa i t 4 0 0 0 0 1 3 2 d sp T I l C Z F RO L EIJE L m u s t be h e l d wa i t 3 a O O wr t t i p 3 3 w a i t 2 0 0 0 r d s 7 B i f b i t 7 8 1 o r t S R0 OK 3...

Страница 39: ...4 0 n DL d s n 6 wa i t 3 S 0 0 1 9 i f C l q to S 9 0 d s o P r e s s Ca T I U E s tn 9 1 q d so C ijE C K PO I N T g wa i t 2 S 0 0 i f S O s n c 3 9 2 i f S O or t Z S CH EC KPO L T Z S 3 D ro h e 3 T A R T a nd STO P 9 3 d SD B or obe START wa i t 5 0 0 0 9 4 w r t t iD GB O o n U L d s n 1 w a i t 3 5 0 0 w r t t iry GB O O O DL d s D 2 9 5 w a i t 3 5 0 0 wr t t i D Gi3 4 0 0 UL d s o 3 i w ...

Страница 40: ...T SETUP 4 6 9825A f I 1 I i I r i I 1 i r I I i 98034A 53638 General prog ram instructions User enters select code here I i e 701 730 CONT I N U E i U se Test Section I equ ipment setup for Check Pai nts 1 through 5 Figure 4 2 HP IB Program Description ...

Страница 41: ...ion results I i e OK or ERROR CHECK POINT 4 verifies that the 53638 does I nitialize by observing the p robe status lights When the lights switch from 8 to A the i n strument has i nitial ized CHEC K POINT 5 verifies that the 53638 responds to one and only one H P 18 address The address select codes 700 through 730 a re sequential ly sent out on the b us The operator monitors the instruments respo...

Страница 42: ...CHECK POINTS 6 and 7 CHECK POINT 6 remotely programs the START channel TRIGGER LEVE L DAC to step from 9 99 to 9 51 in 0 5 volt steps The operator monitors the measured voltages on the DVM and verifies they are 75 mV Move the DVM input from START TRIGGER LEVE L to STOP TRIGGER LEVEL CHECK POINT 7 repeats Test 6 above for the STOP channel DAC Figure 4 2 HP IB Program Description Continued ...

Страница 43: ...Reconfigure test equi pment as in setup above for T EST SECT I O N I I I Check Points 7 and 8 CHECK POI N T 8 programs six d ifferent A p robe con figurations As each configuration comes u p the operator compares the actual 1 720A display to waveforms 1 through 6 which follow CHEC K POINT 9 performs the same test as C heck Point 8 on the B p robe Again com pare 1 720A d isplay to wave forms 1 thro...

Страница 44: ...M odel 5363 8 Performance Tests 4 1 0 WAVEFORMS FOR TEST SECTION III 2 3 4 5 6 Figure 4 2 HP IB Program Description Con tinued ...

Страница 45: ... the 53638 Test e q u i p ment havi ng eq u ivalent c h a racteristics may be substituted for the equi pment l i sted U n less othe rwise noted one of each u n i t is req u i re d INSTRUMENT Precision Power Supply Pulse Generator Counter Oscil loscope Digital Voltmeter 4 1 7 Test Record Table 4 3 Performance Tes t Equipment TYPE REQUIRED CHARACTERISTICS 0 1 0V 3 5mV Transistion Rate 500V l s Max O...

Страница 46: ...CW OUTPUT AM PLITU DE 5 0 VERNIER i s full CW OFFSET OFF NOTE Perform the Trig ge r Level Calibration p roced u re I Paragraph 3 1 1 whenever the 53638 slopes or p robes are changed Do this for all three test setups c Connect HP 53638 A p robe to OUTPUT 1 terminal of H P 801 38 d Set H P 53638 as follows START to A 5 00 STOP to A 5 00 Adjust 5363 8 T I M E ZERO PULL TO ADD 1 0 00 ns knob to obtain...

Страница 47: ...ct HP 53638 A probe to OUTPUT I I terminal of HP 801 38 k R epeat steps d through g selecting polarity for START a nd STOP Record resu lts from HP 5370A display on test card Connect H P 53638 8 p robe to OUTPUT I I terminal of HP 80138 m Repeat steps d th rough g selecting polarity for START and STOP Record results from HP 5370A display on test card 2 TRIGGER DIFFERENTIAL TRIGGER LEVEL ACCURACY TE...

Страница 48: ...61 1 5A power supply to its own V terminal g Slowly increase power supply voltage u ntil the START channel trigger light flashes on t h e 5370A Counter Record Voltage drom HP 3490A dig ital d isplay on test card h Reset power s upply to i n itial setting o f step c then increase power supply voltage u ntil the STOP channel trigger light flashes on the 5370A Counter Record voltage I from HP 3490A d...

Страница 49: ...es at selected thum bwheel settings SETUP FOR TEST 3 3490A a Con nect equipment as shown i n diag ram for TEST 3 b Set 53638 START thum bwheel switches to A 0 00 F c Set H P 3490A to I dc vOltS I 20 volt range 53638 START T R I G G E R L EV E L O U T P U T d Dial sequentiall y each of the following settings on the START thum bwheel switches and n ote the corresponding measurements on the HP 3490A ...

Страница 50: ...E 1 2 O clock position AR M I N G TI I N PUTS START STOP L EVEL PRESET I N PUT I MP EDANCE 50 ohm 1 1 0 1 AC DC DC START COM SEP SEP SLOPE f g Lift and hold TI M E ZERO LEVEL switch h The 5370A counter d isplay n o w s hows a differential channel delay I typicall y 60 p s I introd uced b y the i n put channels o f t h e counter i P ress 5370A S ET R E F key to take out the 60 ps delay j Remove the...

Страница 51: ...cc u racy D iffe rential Tri g g e r Accu racy A p robe STA R T at 8 50 V A p robe S T O P at 8 50V A P R O B E STA R T A P R O B E STOP A p robe START at 5 05 V A p robe S T O P at 5 05V A P R O B E START A P R O B E STOP A p ro be STA R T a t 9 95V A p ro b e STOP at 9 95V A P R O B E START A P R O B E STOP B p robe STA R T a t 8 50V B p robe STOP at 8 50V B P R O B E START B P R O B E STOP B p ...

Страница 52: ......

Страница 53: ...n e l WARNING I ANY INTERRUPTI O N O F THE PR O TECTIVE GR O U N DING C O N DUCT O R O R DISC O N N ECTI O N O F THE PR O TECTIVE EARTH TERMI NAL IS LIKELY T O MAKE THE 53638 DANGER O US 5 5 FACTORY SELECT COM PON E NTS 5 6 Some component va l ues of ce rtai n c i rc u its a re selected at the factory These a re ide ntifia b le b y a n aste risk i m mediately fol lowing the refe re nce desig nator...

Страница 54: ... zero I for a read i n g of 0 075 0 001 V on the DVM e Set START switches to O OOV and adj ust resistor A2R42 I ze ro I for a read i n g of 0 075 0 00 1 V o n the DVM f Repeat steps d and e until and ze ro read i n gs a re the same g Set START switches to 9 99V and adj ust resistor A2 R46 g ai n for a rea d i n g of 1 0 065 0 00 1 V on the DVM h Set START switches to 9 99V a n d a d ju s t resisto...

Страница 55: ...c Man ufact u re r s part n u m be r d Total quantity used i n the i nstrume nt 6 3 M iscel laneous pa rts a re l i sted in Tab le 6 2 fol l owing t he i r respective asse m b l i es Genera l misce llaneous pa rts a re li sted at the end of Tab le 6 2 6 4 O R D E R I N G I N FORMATION 6 5 To obta i n replacement pa rts add ress order o f i n q u i ry t o you r local Hewlett Packa rd Sales and Serv...

Страница 56: ...PT OSC OX oz II P PAM PC PCM PDM pF PH BRl PHL PIN PIV pk PL PLO PM PNP P O POLY PORC P S neon negatIve nanofarad nickel plate normally open nominal normal negatlve posltlve negatlve negative positIve zero I zero temperature coefficIent not recommended for fIeld replacement nanosecond not separately replaceable nanowatt order by deSCription outSIde diameter ova head operational amplifier option os...

Страница 57: ... 06 8 1 20 9 1 00 Com ponentiPa rtfMateriaI Capacitors Va riable mechanica l Capacitors Vol tage Va riable sem i cond ucto r Capac itors FiXed Capac itors Fi xed Non Electrolytic Ca pacitors Fi xed Capacitors Fi xed Electrolytic I nsulting Materials I nsu ltors Formed Knobs Control S pacers a n d Standoffs C rystals Ad hesives Re lays Fasteners Resistors Fixed non w i re wound Resistors I wi re wo...

Страница 58: ...trument Parts Prefix 5000 to 501 9 5020 to 5039 5040 to 5059 5060 to 5079 5080 to 5099 6 1 4 These a re H P man ufactu red pa rts for use i n i nd i v i d ua l i nstruments or series of i n struments For these pa rts the p refix i nd i cates the i nstr u ment and the s uffi x ind icates the type of pa rt For exa m ple 05345 6000 1 i s an a sse m b l y u sed in the 5345A Fol lowing i s a l i st of ...

Страница 59: ... d I T nR F XD 0 1 JF f O n o v c cu A P A C T TnR fXD n l JF 2 0 1 0 0 VDC ER AP A C I T nR r xu 0 1 UF 2 D Z 1 0 D VDC L r R CAP A rnw r xn O l 111 ll 1 0 n VDC cr CM J I r T R F Xl 1 lf t 1 il l I C LU CA P Ar l TnR rXD O l ur t 2 0 1 0 0 VDC rR r AP C J T IR F XT D 1 1 1F t I D JVt C LF l CAPAC r TrW F XD 1 W n 1 n 0 VDC er l l rAPAI I T rJR f XD 27P F l O O VOC M T C A C A P A C T TOR rXD l I...

Страница 60: ... O O Ml ll l R Nf I STOR PNP n PD 3 fl O i IW F T 1 iJ MII1 T AN S I S Tor P N SJ P D 3 0 O Mv 1 F T 1 5 0 MH7 R F S I STnR 2 n K 1 1 2541 F T C i l O R ES I S TOR 4 7K 5 25W F TC 4 0 0 7 0 0 R F S l STOR 1 0 K 1 1 2 W F TC O l n o R E S I STOR 1 0 K 1 1 25W F T r O l O O R T STOR 2 0 K l 1 W F IT o O t l D f R ES J STOI 1 0 1 1 l l W F TC O 1 0 0 R F S I STOR 2 0 K 1 1 2541 F TC O 1 0 0 R ESI STO...

Страница 61: ... i 1 2 W F T r O l n o R I f Jn f lR 1 f 1 X l W F 1 1 0 1 n n R r f 1 3T 1R 4h4 l i 1 2 W F 1 O t l 0 0 H I 3 T T nl 1 6 1 1 2 W F r C l t _ l fJ O R F n r f TOI 3 1 1 1 1 jW F T f O 1 0 0 n r r n r R 1 1 1 W F I l 1 0 ln i H TOR 4 4 1 1 1 W F n O l O O r r f T d JR 4 4 1 1 1 J F T e O l fJ O R F S l STOR l h 1 1 W F f 0 1 0 1 R r 1 I 1 1 r R l K l 1 2 W t T O t 1 0 0 R I S T or 1 1 1 1 W F TI O ...

Страница 62: ... I N BSC S7 RND I C N rR CMOS BIN SYNCHRO p n8 ED E TR IG I C GWITCH AN G DI JP 1 4 D l C P I G I C C N T R CMOS B T N SYNCHRn POS EDG TR G I C CN1 R CMOS B J N SYNC IRO rOS EDrE 1 R G Ie or AMP GP 8 D J P P P G I C CNTR r os B I N GYNCHRn POS EI GE T R I G I C o r AMP G P 8 D I P P P K G I C O P A M P C P 8 D I P P P K G I e SWI TCH ANLC DlIAL 1 4 D J P C P I C I C DCllR 11 L 1 PCD 4 TIl 1 6 I I ...

Страница 63: ...n r S T f TnR l O O K 1 t 25W F l e O t 1 0 0 R r S 1 STOR S O K 0 1 1 2 W P WW Te O t t o In E TnR i D K n l y 1 lW rl w T C J 1 D R r s r flTnR S O K e l 1 W P W W T O t 1 0 rH T H1R l O O K n li I JW PWW T C H 1 R r H H TOi 5 0 K 1 f t jW rl ltJJ TC O t O rn I j T rnnR S D K 1 l JW P W W T C 1 0 R r S I s rOR S O K 1 1 W P WW T C O 1 0 rn J r l J R 1 0 0 K 1 1 J P W1 il T C 0 1 0 I I I JTOI O l...

Страница 64: ...ONT P T N 0 4 T C OP AMP GP 8 IP P p r e I e L C H CMOS D 1 Y P E QUAD Ie or AMP GP 8 D I P P P K e I C LCH CMOS D 1 Y P E QUAD I C l eu CMOS D TYPE QUAD I N F Jr T N I C IN Bse I N B C T R ANGTSTOR A R R A Y 1 4 P I N PJ STC l Tfl I e R CMOS QUAD Ie or AMP GP 8 DIP P P KG I e or AMP GP 8 D T r p P K G 1 C t A1 E l l L I S N O R QUAD 2 r NP TR ANSI S OR A R R AY 1 4 P I N P I STC D I P A2 M l SCE ...

Страница 65: ... O 3 0 0MW r T 2 0 Mli7 TRANs t S 1 0R P NP S 1 PP 2 0 0 M W F f 5 0 0MI 1 l R td oJn U TOR PNP I P I O I MW F T j n O rH rZ TR ANS ISTOR PNr S1 P D 2 0 0 MW rT O O MI Z PCn r L rrJR 0 0 W rc IT 4 0 0 t 6 8 D R S r lTnR o o j 2 jW Fe T j 4 0 t O R r n r ril OR 7 0 w Fe rc 4 0 D t tI J I R F l l nTn 1 2 0 2 W F fC 4 0 0 i l O O r I l I R 47 0 I I J F f rc 4 D a h J O Ff l rnp n o j X w rr T 4 l 0 t...

Страница 66: ...S I G r Hrn TKY D I ODE SM S I G 8CHflTTK Y 1 ODF SM B I G SCHDTl K Y D I ODE SM S I C Sr HOT T K Y I ODF SM S I G nCH0 1 T K Y D I ODF SM S I G SCHOTTKY DumF 8M S I C E CHOl T K Y D I ODr SM S I C Sr HnT fI Y DI ODE M S I r SCHOTTKY D I ODC SM S I G SCHOT fKY DI ODE 8M S I G SCH01 TKY DIODE SM S I G SCHOTTKY DI ODE SM SI G CflOl T K Y D I ODE SM S I C SCHOTTKY DIODE f M ST G 3CHO T T K Y D I OD S...

Страница 67: ...Tr R 1 0 K 5 2 W Fe l e 4 0 0 7 0 0 R SJ STOR 4 7K 5 25W F e 11 4 0 0 7 1 1 0 W J Tf H S 7 l A D I P lt T n r A SY t A dl Vf C CflNNf TH IR 3LI r lINT P l N 4 f N F j 1 R N D ON N r c rm r 1 C O N f P 1 N 4 l N fl jC l RND T 41 R fiM f X 1 6 1 r I N 1 1 1 u Hf X 1 1 Nfl H I I l l 1 11 l f lM Ll AR fl B l l r c I CH T 1 1 tr M rl FAI n 1 1 r l nr R l T I Nt d JO qUAO I t i rC leI T T l NANn J ID r ...

Страница 68: ... 1 M l i ft _ 1 c W C TC J 1 2 0 0 R ES n lTOR 1 0 K _ 1 w C T C O t 2 0 n R E S ISTOR 1 0 K 1 0 5W F TC O 1 0 0 RC S I GTOR 1 0 K l n iW F TC II 1 0 0 R E S ISTOR I I HI 1 5W CC TC 33n l l n R GE TOR 1 K l O r 1 2 W cr TC 3 3 11 n o II R E S I STOR 1 11 0 IX l j W F T I 0 1 11 0 R S I nf R 1 0 1 l W F H O l l O O R ES I STOR 60 5 1 W C TI 20 1 R A N J ST O R J F E T DI Al N r HAN V MIlDe TO 7 l T...

Страница 69: ...13 T Hnl I ll l 1 JW C rr n i 2 0 0 r E S l lTDR 1 0 K 1 0 O W F H i I O O R r T 1 1R 1 0 K n O Jt J r 1 c 0 f l a n R E S T J l nl 1 1 Jr t l j J rc TC 3 3 i n o o R n l OR 1 1 1 0 1 I J r c TI 3 3 11 fl J O R E 3 T HOR 1 0 0 1 o 1 d J F T C O t I 0 0 R F fl t T lR 1 0 1 1 2 JW F TC f t 1 D D R F l I STnR 611 5 I W C T C l t 2 0 0 l R N lSTnR J H r DlIt L N CHt N D MODF T 7Il T R AN S 1 STfW JFTT...

Страница 70: ... R TO 220 CABl E ASSY 1 8 AWG 3 rNDlJCT JGK JK f CABLE ASSY OU1 P U T AB E COAX 50 0 iM BRN 2R p r r r F UGEHClI D R COMPONFNT FflR tn E ON FUS HOLDER B lDY J A MAX fOR Lit F USF HOt DE R c p 1 A MAX F IR ilL FlISE HOLDr R CflMP DNCNT NU r THI E AD M 1 7 WASH E R l K J Nl l T 1 2 I N 5 1 2 I N T D M I SCEI L A NEOI l f i PAr T GROUNll L EAD JNSUI A ror XSTl ALUMINllM HD ANDl INSlJl AT OR XSTR P OL...

Страница 71: ... V E S H I P P I NG CAP A6 7 W1 S T R A I N R E L I E F MP1 T I P BODY H P I B O R BLACK R I NG ADAPTER TECH T I P PART O F W1 CABLE ASS E M B L Y Figure 6 1 Probe Mechanical Parts Model 53638 Repl aceable Pa rts 6 1 7 ...

Страница 72: ...Model 53638 Repl aceable Parts MP12 MP17 J 6 1 8 MP19 MP14 MP13 MP1S MP14 MP17 MP20 Figure 6 2 Cabine t Mechanical Parts MP1 1 MP12 ...

Страница 73: ...acitor Corporation Burbank CA Signetics Corporation Sunnyvale CA Mepco Electra Corporation M i neral Wel ls TX Corning G lass Works Bradford Bradford PA Varadyne I ncorporated Santa Monica CA National Semiconductor Corporation Santa Clara CA Hewlett Packard Company Corporate Headquarters Pal o Alto CA RCA Corporation Solid State Division Somerville NJ Bourns I ncorporated Trimpot Products Division...

Страница 74: ...o i nstru ments havi ng a serial prefi x prior to 2208A perform the back dating that appl ies to you r i nstru ments seri a l pref i x as l i sted in Ta b le 7 1 below Table 7 1 Manual Backda ttng If Your Instrument has Serial Prefix Make the Following Cha nges to Your Manual 2 1 1 6A 1 2 1 04A 1 2 2028A 1 2 3 2020A 1 2 3 4 1 952A 1 t h ru 5 1 932A 1 t h ru 6 1 920A 1 t h ru 7 1 832A 1 t h ru 8 CH...

Страница 75: ...e m a t i C D i ag ra m C h a n g e A 2 S E R I ES a t t o p o f d i ag ra m from 2 1 1 6 to 2 1 04 CHANGE 3 Serial Prefix 2028A The fo l l owi n g c h a n ges m u st be made In the 5363A O perat i n g and Service Ma n ua l s u p pl i ed with t h e 5 3 6 3 B A D D E N D U M Pa ge 6 8 a n d 6 9 Ta b l e 6 2 A 2 05363 600 1 2 R e p lacea b l e Pa rts C h a n g e A2 S E R I ES a t top of d i ag ra m ...

Страница 76: ... D i a g r a m C h a n g e A 2 S E R I ES at top of d i a g ra m from 1 95 2 to 1 832 C h a n g e A2R55 va l u e from 82 5K to 9 1 K CHANGE 7 Serial Prefix 1 920A Page 1 7 Ta b l e 8 A1 R e p l acea b l e Parts 5363B A D D E N D U M C h a n g e A 1 S E R I ES from 1 932 to 1 83 2 C h a n g e A 1 C R 1 f r o m 1 906 0096 C D 7 D I O D E FW B R D G 200V 2 A I N L I N E to 1 906 0028 C D 5 D I O D E ...

Страница 77: ...8 A6 Replaceable Pa rts 53638 A D D E N D U M C h a n g e A6 S E R I ES from 1 920 t o 1 83 2 Delete A6A1 R9 a n d A6A1 R 1 0 Page 2 2 Ta b l e 8 A 7 R e p l aceable Pa rts 536 3 8 A D D EN D U M C h a n g e A 7 S E R I ES f ro m 1 920 t o 1 832 Delete A 7 A 1 R 9 a n d A7A1 R 1 0 ...

Страница 78: ...TO MA KE TH E INSTR UMEN T DANG E R O U S IN TE NTIONAL I N TE RR UP TI O N I S PRO H IBIT E D 8 5 Any adjustment maintenance and repair of the opened instrument under voltage should be avoided as much as possible and when inevitable should be carried out only by a skilled person who is aware of hazard involved 8 6 Capacitors i nside the instrument may still be charged even if the instrument has b...

Страница 79: ...4 Fol dout se rvice sheets a re provid ed at the end of th i s sect i o n These conta i n the c i rc u i t theory compo nent locator and board schematic f o r t h e desig nated asse m b l y 8 1 5 RECO M M E N DED TEST EQU I P M E NT 8 1 6 Test equi pment and accessories req u i red to test and m a i nta i n the 5363 B T i me I n te rva l Probes a re l i sted i n Tab le 1 4 Equi pment oth e r than ...

Страница 80: ... 05340 S0 0 3 r A 1248 I R E F E R EN C E D E S I G N AT I O N S SER I ES NO May Be Stamped Elsewhere On The Board REFERENCE DESIGNATIONS WITHIN ASSEMBLIES ARE ABBREVI ATED ADD ASSEMBLY NUMBER TO ABBREVIATION FOR COM PLETE DESCRIPTION JACKS ARE THE STATIONARY CONNECTORS AND PLUGS ARE THE MORE MOVEABLE OF TWO CONNECTORS ASSEMBLY A25 A25Al NO PREFIX ABBREVIATION C l CRI J3 COMPLETE DESCRIPTION A25C ...

Страница 81: ... SUMMARY Digital Bus Connector Line Use 8 4 Pin Number 1 4 1 3 15 16 6 7 8 9 1 1 17 5 1 0 1 2 1 8 24 Name D101 7 D I 08 DAV RFD DAC I FC ATN REN Carries characters to 5363B for conversion or for p rocessing as Bus commands Not monitored or d riven terminated by res istive n etwork Th ese t h ree l i nes make up the handshake system on the H P I nterface Bus DAV is moni tored a n d RFD a n d DAC ar...

Страница 82: ... the fol lowing proced u re 1 Disconnect the power cable f rom the rea r pane l of the 5363 8 2 Place 5363 8 with bottom cover faci n g u p 3 Remove four plastic feet from bottom cover Lift u p on the back edge of the plastic foot and slide bac k 4 Remove t w o Pozid ri v sc rews from the rea r e d g e o f the b ottom cover 5 Lift the bottom cove r from the rea r edge p u l l i ng u p and back u n...

Страница 83: ...zid ri v sc re ws holding the A3 Cal i b rate Asse m b l y board to the front pane l and pull a sse mbly f ree Reve rse this p roced u re to replace A3 Cal i b ra te Asse m b ly 8 34 LO G I C SYMB OLS 8 35 Logi c sym bols used i n this m a n ua l conform to the A m e rican National Stand a rd ANSI Y32 1 4 1 973 I E E E Std 9 1 1 973 This sta n d a rd s u pe rsedes M I L STD 8068 In the fol lowing ...

Страница 84: ... of the logic function i n puts and o utputs in te rms i nd e pendent of thei r p h ysical val ues the O state of the i n put and output bei ng the i state of the sym bol referred to by the sym bol descri pti o n EXAMPLE 1 E z EXAMPLE 2 z N O TE In this manual the logic negation sym bol is NOT used TRUTH TABLE A B Z 0 0 0 0 0 TRUTH TABLE A B Z 0 0 0 0 0 Says that Z i s not true if A is tru e and B...

Страница 85: ...ri b i n g the ope ration of electro n i c logic devices the symbol H i s used to represent a high leve l which is a voltage with i n the more positive less negative of the two ranges of voltages used to represent the b i na ry va riable L i s u sed to represent a l ow level which i s a voltage with i n the less positi ve more negative range 8 43 A function tab le for a device shows i m p l icitly...

Страница 86: ...ity i nd i cator symbol o n some i n puts a utomatica l l y i nvokes a m i xed l og i c conventi o n T h i s is positive logic is used at the i n p uts a n d outputs that have pol a rity i n d i cators EXAMPLE 6 FUNCTION TABLE A B Z H H L H L H L H H L L H EXAMPLE 7 FUNCTION TABLE A B Z H H L H L L L H L L L H This may be shown either of two ways Er z z This may be shown either of two ways z z Not...

Страница 87: ... 1 The ope ration bei ng performed may best be u nd e rstood as AN D or O R i 2 I n a f uncti o n more complex than a basic gate the i n p uts wi l l ususa l l y be considered a s i nh e rently active h i g h or active low e g the J and K i n p uts of a J K fli p flop a re act i ve high and active low respective l y 3 In a chain of logic u n d e rsta n d i ng and the writing of logic eq uatio n s ...

Страница 88: ... C i s 1 and the D i s O the fli p flop w i l l reset A D D R ESS Add re ss symbol has m u ltiplexing rel ati onshi p at i nputs and d e m ultiplexing relationsh i p at outputs 8 5 1 Dependency Notation e G V F 8 52 Dependency Notation I S a way to s i m p l ify symbols for c o m plex I C elements by def i n i ng the existence of a n A N D rel ationsh i p betwee n i n puts or by the A N D cond i t...

Страница 89: ...egi ster control b loc k This symbol i s used with a n a ssociated a rray of f l i p flop symbols to provide a point of p l acement for com mon f unction l i nes such as a common c lea r R I G H T so Shift regi ster control b lock These symbols a re used w i th any a rray of f l i p flop symbols to form a s h ift regi ster An acti ve transition at the i n p uts ca uses l eft o r right shifting as ...

Страница 90: ... block used to s i m plify A N D portion of a q uad AND OR select g ate When G1 i s high the data presented at the 1 i n puts will be gated t h ro u g h When G 2 i s h i g h the d ata presented at the 2 i n puts will be gated t h ro u g h Reg i ster control b lock used to i l l u strate a q uad D type latc h There i s a common active l ow reset R and a common edge triggered control i n put I C I S...

Страница 91: ... word at eac h add ress Storage I _ _ _ A 8 capaci ty for the R O M i s 256 1 6 bit words 1 4096 b i ts I A 21 A 9 A 20 A 1 O A 1 9 A 1 1 A 1 8 A 1 2 A 1 7 A 1 3 A 8 57 B LOCK DIAGRAM DESCR I PTION 8 58 The fol l owing th ree pa ra g ra p h s conta i n a genera l desc ri pti on w h i c h references the b lock d ia g ram in Fig ure 8 3 8 59 The H P 5363 B accepts signal i n p uts t h ro u g h the A...

Страница 92: ...STOP r CALIBRATION STATE 1 A C H I _ DACS hl H STAFl H STOP TRIGGER LEVEL X y O c F S E T T P LEVEl f3l START ANALOC LATCH STOP ANAL OC L A l CH I I C1O O H I V E f l r r 4 DELAY l ADJUST D R I V fl I STAR T lCW S TAFn STOP D L I J8 r I I J E AH PANEL I I I I TRIGGER LEVEL OUTPUT L _ _ J elf r l 71 J l OUTPUT I TO COUNTER I INTO on L _ I I l 6 1 1 1 NS J f l AY _ 1 OFFSET I I I I I DAC A2 HP IB IN...

Страница 93: ... raph 8 1 2 1 and g oes to the Ca l i b ration Routi ne para g raph 8 1 23 In this routine the state mach i ne ca uses the START channel Cali b ration DAC A1 U3 U4 to output a voltage of 75 mV to the START channels of both probes This voltage can be traced f rom the node of A1 R24 and A1 R8 to A1 U2 in p i n 8 out pin 7 to A1 U5 in pin 3 out p i n 6 or T P5 DAC O F FS ET to pin 2 of A2U9 on the Re...

Страница 94: ... J F ETs with i n a s i n g le A6 A7 U 1 or U 2 package This means that the trigger voltage of the i nve rti ng J F ET and that of the non i nverting J FET w i l l be off by whateve r the d iffe rence i s between their respective V g s rat i ngs A l s o a sm al l offset e xits between the p l u s and m i nus term i nals o f t h e comparators which sense a tri gger situati o n And finally the com m...

Страница 95: ...cti ng cables The Time Zero Ca l i b ration routi ne provides a method of balancing out this delay I nserting the probes in the ca l i b ration jacks and pressi ng the f ront panel T I M E ZERO switch i njects a strea m of h i g h speed pu lses i nto both START a n d STOP chan nels sim ultaneously A control pot on t h e f ront pa nel controls the adj ustable delay i n the STOP channel By i njecti ...

Страница 96: ...1 3 or A60 1 Si nce A1 U 1 3 i s in a soc ket on the A1 mothe rboa rd it would be wi sest to sta rt by swa p p i n g A1 U 1 3 with A1 U 1 7 24 o r 27 and reru n n i n g the test proced u e If a new fault shows u p the c hances are that the A 1 U 1 3 w h i c h was swa pped i s bad I f the same fault n u m ber a ri ses then the probe i s the n ext suspect 8 86 Ta ble 8 1 shows the fault n u m be rs ...

Страница 97: ...s t b e i n t he CAL SOCKE TS i S p C 2 5 d sp Pr es s CON T I N U E wh e n r ea d y s tp 6 w r t 7 1 5 P i d sp Ca l ib r a t ion c h e c k S YST E M B U SY 7 u A C 8 8 f o r 1 0 t o 3 GI RA C 1 0 i f I 1 i GA Ra C 1 1 i f 1 2 i 13 RA C 1 2 i t I 3 i GB Ri3 C 1 3 w r t 7 1 5 C J i w a i t 1 0 0 0 1 4 r d s 7 3 i f b i t 7 3 O i sb SRO 1 5 r j s 7 1 5 A i i f A 6 4 i g t o 1 7 16 C 2 A I C rd s 7 ...

Страница 98: ...R A T I ON CHECK 2 0 0 OUTP UT 7 i S j P 2 1 0 r OR I o ro 3 2 0 C G AR A 23 0 I F 1 1 THEN C GAR B 2 4 0 I F 1 2 THFN C G BR A s o I F I 3 THEN C c G BR B 6 0 OU T P U T 1 1 5 iI 27 0 WA l T t O O O 8 0 81 A T lJ S S SYfl T E M 29 0 IF B I T C 5 7 0 T H E N G O S U B 4 9 0 3 0 0 S T AT US 7 1 5 j A 3 1 0 I F A 64 THEN 3 5 0 3 2 11 C C 2 I 3 0 Sl A TU S j S BUSY I t N I T J AL l IE S36 3 B I S T A...

Страница 99: ...g rou nded b roken power wires to p robe X Logic fai l u re check signatures X X Logic fail u re check signatures X X A7U2 A1 U 1 7 A7Q1 b roken orange or yel low wires gOing to B probe X X X Com bination of both test 3 and test 10 X X A7U 1 A 1 U27 A 1 Q2 b roken black or white wires going to B probe X X X Combination of both test S and test 1 2 X X X O pen or intermitten connection to the B p ro...

Страница 100: ...e va rious latches decoders and selectors as wel l as the ROMs state cou nters U 1 4A i s the TI MER c i rc u i t A low on U 14 p i n 6 produces a one shot logic h ig h ti ming cycle which is fed as a q u a lifier i n put to q ualifier selector U21 8 1 00 The state cou nters U25 and U 28 a re a rra nged to c o u nt from 0 to 255 using U25 to co unt the l owe r order b its a n d U28 for the h i g h...

Страница 101: ... J u m p if High I 1 Exa m i ne Qual ifie r J u m p if low 0 R O M A1 U30 R O M A5U 1 0 1 5 0 1 4 0 1 5 0 1 4 0 0 1 0 0 1 1 0 1 0 0 0 8 1 07 The fol l owi ng pa rag raphs desc ri be how the state mach i ne performs these functions a Exec ute Command a n d Count b Exec ute Command to GO TO c Exa m i ne qualifi e r J u m p if Q 1 8 1 08 Exa m i ne qualifi e r j u m p if Q O i s s i m i l a r to exa ...

Страница 102: ...01 5 0 I L 1 1 1 1 1 1 1 1 i l I I 1 I I I I I I I i I i 1 1 1 I I I 1 1 1 I I I I I I I I 1 1 1 1 I I I I I I 1 I I I I l i I I I i I 1 j i i I I i 1 1 1 1 I i I i i I I 1 I i i I I I I H I 1 1 I i i 1 1 CI I 1 i I I I II I i 1 1 1 i 1 I i I I i i l l l I I i I i I I i l l l I I I I I i I I i i I I I l l i Figure 8 5 Flowchart Examples Command I I I I I I I i Model 53638 S e rvice 8 25 ...

Страница 103: ...t preset and therefore f ree to store a q ua lifier The low on R O M o utput 08 enables qualifier decoder U21 wh i l e outputs 0 1 0 through 0 1 2 select a d d ress 001 q ualifier i np ut 1 1 which is the C data l i ne The state of the C data l i n e w i l l be fed t h ro u g h U 2 1 a n d U22 D then latched and store i n U23A on the next clock pulse The high on ROM output 0 1 4 prog rams U22A for...

Страница 104: ... 1 I I I I i IJ I I I I I I I 11 1 1 1 1 i I I I I I I I I i i l i I I i I l l I 1 1 1 1 I I I I 1 1 1 1 I I I I 1 I I i I i i I i I I 1 I I I I I l lj II I I I i I IJ 1 1 I 1 1 1 1 I 1 I 1 1 I I I I 1 I I II U I 1 1 1 1 I 1 1 1 1 I 1 1 1 1 1 I I I I IJ I I I 1 1 1 1 1 1 I I I I I 1 1 1 1 I 1 1 1 1 i 1 1 I I I 55 4 5 LATCH 4 I I 1 1 1 1 1 1 1 I i I I I Figure 8 6 Flowchart Examples Qualifier M od ...

Страница 105: ...pin 6 to dete r m i ne if A5 H P I B I nterface Asse m b l y has req uested R MTCAL remote ca l i b ration State 30 c hecks the R E MOTE q ualifier l i n e A1 U 2 1 pin 3 If R EMOTE i s h i g h t h e state mac h i n e wi l l j um p t o state 33 If R E MOTE i s l o w i n d icati ng l ocal operat i o n the state mach i ne conti n ues to state 3 1 States 31 a n d 32 exa m i n e the f ront panel level...

Страница 106: ...T A L I N ES L OA D STA R T DATA T R I G C E R L I C H TS SC A N IJ A T A L I J f L O A D STOP DI TA POWE R U P R E SET x y P R O G 631721 C A L I B R I T I ON 1 6 1 24 1 1 7 4 7 1 Ril l Figure 8 7 Mall1 Program Block Diagram C A L I B E R R O R Model 5363 8 S e rvice 8 29 ...

Страница 107: ... b ration and the offset va l ue i s acc u rate 8 1 26 States 1 83 t h rough 1 96 pe rform the cali b rati on as previ ously desc ribed for the stop channel comparator States 1 97 th ro u g h 200 turn on all four channel i n d icator l i ghts signali n g cali b ration is com plete States 2 0 1 t h ro u g h 204 keep t h e l i g hts on u n t i l t h e f ront panel switch i s released States 205 t h ...

Страница 108: ...t h ro u g h C R 1 2 State 248 resets the A2 DAC asse m b ly to zero States 249 t h rough 252 now load zeros in as reference voltage for Start and Stop chan nels The DAC wi II conti nue to be reset and ze roed as long as the TI M E ZERO switch i s ra i sed 8 1 34 TROU BLESHOOTI NG 8 1 35 For troubleshooti ng p u rposes the ope ration o f t h e 53638 m a y b e d i vided i nto two major f u nctional...

Страница 109: ...eshoot i n g t h e 53638 using Sig natu re Analysis Separate proced u res a re g iven for the A 1 Motherboa rd and the A5 H P 1 8 Interface 8 1 43 Logic Analyzer 8 1 44 The 1 600A Logic Analzye r can be used to monitor the state mac h i n e U s i ng the fol l owing hoo k u p proced u re and the detai led flowcha rts i n Fig ure 8 9 a state by state exa mi nation of state machine operati on can be ...

Страница 110: ... S A STA RTISTO P CLOCK f 5363B A D OO f B O OO f PIN Ul0 U11 U15 U16 U20 U21 U25 U26 U28 U2 J U30 1 40P6 A70A 0000 0000 0000 P980 CC34 87C7 CC34 6F54 0000 r 2 SA UA AH9A CC34 0000 ooOO ACFA r U669 H760 CC34 t 3 876F 822P CC34 cC 34 87C7 F 1 L 2FUC PUH6 59c r 1 4 C36U 0089 CC34 CC34 3HUH 3F35 U669 7A47 7U57 54P2 9458 I I t 6695 55F2 CC34 CC34 7H94 C56P F l 1 U 863H 470F 7A47 2HH8 695F OOPP A52U 00...

Страница 111: ... u res g Con nect a j u m per across A1 C 1 0 t o p u t the A 1 board state machine i n to its reset state h S e t 5004A controls i n step e o f A1 M otherboard h o o k u p p roce d u re Set 5363B controls i n step f of A1 M otherboard hook up proce d u re Connect power t o 5363 B k Pulse h i g h pin 7 of A1 U20 with a logic p u lser several t i mes to reset t h i s reg i ster Check for the reset ...

Страница 112: ...2 0000 CC34 1 H l F 229U 0000 5C44 C C34 1 1 2P U5H6 CC34 1AfH 2799 C04 PH54 61PO 5HC8 CC34 0000 0000 t 0000 0000 0000 0000 0000 0000 0000 C04 0000 r CC34 CC34 73f 8 A 5H2 CC34 171H 2799 50U2 0000 66fC P511 H 1 L 1 58C8 1 1 2P P511 917 P 5 t 2525 HH4H 2525 AUA6 245C AUA6 0000 AL A6 391f 59Cf 2525 45H l U539 8228 66AP PS11 0000 4POH CC34 CC34 CC34 CC34 C04 f r c t 2785 P3HU P511 2525 AUA6 P1 H A SA...

Страница 113: ...Y O and N 1 i dentify the o pe ration m o d e o f t h e q ua lifier If START TR I G i s t rue Y YES then the qualifier bit i U 22A p i n 2 w i l l be 0 i l ow and the prog ra m wi l l j u m p to d iffe rent add ress If START T R I G i s false N NO then the q ualifier b i t wi l l be 1 h i g h and the prog ram wi l l i n c rement to the next seq uential add ress The state mach i n e o pe ration mod...

Страница 114: ... I 2 1 2 x Y P R O G S H E E T 2 C A L I B R AT E S H E E T 3 TR I G E R L l H S S H E E T 4 T I M l Z E R O S H E E T 5 Figure 8 9 Ma in Program Legend C A L I B R A T E E R R O R SH E E T i M odel 5363 8 Service 8 37 ...

Страница 115: ... 4 1 5 42 5 2 ctJ 0 4 1531 NP NOTE FLOWCHART STATES ARE NUMBERED IN DEC IMAL WITH OCTAL EQUIVALENT IN PATENTHE S I S Model 53638 Service 4 5 5 5 4 6 56 Figure 8 9 Main Progra m Idle L oop Routine Flo wcha rt Sheet 1 of 5 8 39 ...

Страница 116: ...Figure 8 9 MAIN PROGRAM I DLE LOOP ROUTI NE FLOWCHART Sheet 1 of 5 See Page 8 39 ...

Страница 117: ... 4 o I l 53 7 r L 98 42 99 4 3 00 NP 1 J 9J I I 94 1 3 6 o Model 53638 Service I j O hl c of De 3 0 f I 3 G I 1 37 Nlo Figure 8 9 Main Program Idle L oop Routin e Flo wch a rt Sheet 2 of 5 8 4 1 ...

Страница 118: ...Figure 8 9 MAIN PROG RAM I DLE LOOP ROUTI N E FLOWCHART Sheet 2 of 5 See Page 8 41 ...

Страница 119: ... 27 Lffi 2 2 32 4 2 1 32 3 1 9 1 2 7 30 302 Y 0 i 1 95 0 3 1 96 304 D 1 9 7 30 5 9 8 06 99 I n7 20 1 1 2 1 5 32 7 2 1 4 32 6 1 Model 53638 Service 2 0 2 3 1 2 203 3 1 3 204 3 1 4 205 3 1 5 206 3 1 6 20 3 1 208 32 0 2 0 9 32 1 I 0 0 0 DB Fig ure 8 9 Main Prog ram Idle L oop Routine Flo wcha rt Sheet 3 of 5 8 43 ...

Страница 120: ...Figure 8 9 MAIN PROG RAM I DLE LOOP R O U T I N E FLOWC HART Sheet 3 of 5 See Page 8 43 ...

Страница 121: ... I 1 36 2 1 0 Y Q 1 37 2 1 i L _ _ _ i 46 1 03 1 4 7 1 0 4 1 50 J 1 05 1 5 1 y I 1 32 204 1 33 205 1 07 1 5 3 34 20 6 0 8 1 04 1 i 0 __ 1 20 1 70 I J M odel 53638 Service 6 0 1 0 _ 9 _ _ 5 _ 5 _ _ _ _ _ ___ _ _I I I I 1 3 1 6 1 1 24 I 74 I 14 1 6 2 i 25 75 2f 1 6 3 1 27 I 1 7 1 6 I 1 8 I 66 1 P ogra m Idle L oop Routin e Flo wcha rt Fig ure 8 9 MaIn r Sheet 4 of 5 8 45 ...

Страница 122: ...Figure 8 9 MAIN PROG RAM I DLE LOOP ROUTIN E FLOWCHART Sheet 4 of 5 See Page 8 45 ...

Страница 123: ... _ _ t W I 3 346 1 REMOTE N I r 24 36 1 2 4 2 36 2 j o f J I 2 1 r 33 1 y o 245 36 5 246 36 6 1 35 6 1 I 1 i 253 3 5 J 0 _ __ _____ OD 254 37 6 Model 53638 Service Figure 8 9 Main Progra m Idle L o op Routin e Flo wchart Sheet 5 of 5 8 47 ...

Страница 124: ... DLE LOOP R OUTI N E FLOWCHART Sheet 5 of 5 See Page 8 47 Model 5363B Service 8 48 H A N D S H A K E SH E Ff A 01 p 2Hv SH E ET 3k cvi A T T F N SH E E T LI S T SLOPE SH E FT 1 SH E E T 2 8 Pa rt of Figure 8 1 0 HP IB Program Legend ...

Страница 125: ...0 36 3 i 3 7 I 32 4 0 T 33 4 I 34 4 2 3 5 4 3 3 6 4 4 37 4 5 2 i T 33 2 1 8 33 2 Non Model 5363B Service 3 8 4 6 3 9 4 7 4 0 5 0 4 I 5 2 42 52 4 3 5 3 H 44 5 4 L E 93 1 3 5 _ GQ F L OWCHI T SL TES 1Rt NUMB E R f D DEC IMA L W I T H O C T A L EQLJ I Y I L l N T S Figure 8 1 0 HP IB Program Handshake Rou tine Flo wcha rt Sheet 1 of 4 8 49 ...

Страница 126: ...Figure 8 1 0 HP IB PROGRAM HAN DSHAKE R OUTI N E FLOWCHART Sheet 1 of 4 See Page 8 49 ...

Страница 127: ... 233 35 1 1 234 35 2 230 353 I 236 35 4 o _ _____ A 0 23 7 355 1 0 _ H e 238 35 6 2 3 9 357 240 360 4 36 2 2 4 3 353 244 3 6 4 8 245 3 6 5 o S 0 o A 93 c A 94 C 3 o 0 0 LJ 97 A c A C8 J Model 53638 Service G 8 1 0 HP 18 Program Fig ure t e Flo wcha rt Handshake Rou In Sheet 2 of 4 8 5 1 ...

Страница 128: ...Figure 8 1 0 HP IB PROG RAM HAN DSHAKE ROUTINE FLOWCHART Sh eet 2 of 4 See Page 8 5 1 ...

Страница 129: ...u 0 2 o I W i J 4 0 o 6 1 U5 62 76 1 50 DJ 0 0 3 I 62 b I 6 6 o 5 64 c J T A l K 0 LJ 086 c I A 6 Model 53638 Service b L J _ Figure 8 1 0 HP IB Prog ram Handshake Routine Flo wc h a rt Sheet 3 of 4 8 53 ...

Страница 130: ...Figure 8 1 0 HP I B P R O G RAM HAN DSHAKE ROUTI N E FLOWCHART Sheet 3 of 4 See Page 8 53 ...

Страница 131: ...Model 53638 Service Figure 8 1 0 HP IB Program Handshake Routine Flowchart Sheet 4 of 4 1 8 55 ...

Страница 132: ...I I G6 r ciJ I I I I i I I I loY 8 I _ x __ c I I j ...

Страница 133: ... S1 Ul f Ul0 R48 C8 R47 g R44 U21 R 1 31 Figure 8 1 1 A 1 Motherboard Sch e m a tic Diagram Shee t 1 o f 2 R56 R55 CR22 U30 ClO R54 R52 R53 ...

Страница 134: ... 1 J 0 0 3 RI I H I H tt t tTd ci ...

Страница 135: ..._ _ ____ _ __ 3 Model 53638 Service J REFcAENCE DESIGNATOR5 QI Q R61 R63 ND RI 9 AAE NOT ASSIGNED FlglHe 8 1 1 A 1 Motherboard Schema tic Diagram I S h eet 1 of 2 1 8 57 ...

Страница 136: ...to 1 V for the rea r panel START lack o utput to c o u n te r T h e stop portion o f t h e schematic I S s i m i l a r with t h e exception o f t h e delay c i r c u i t ry When the front panel PULL TO ADD 1 0 0 ns sWitch i s p u l led out It activates relay K 1 through 05 The relay adds a 1 0 n s delay line in series with the signal before the s i g n a l eXits through the rear panel STOP Jack Th...

Страница 137: ... W2 Figure 8 1 1 A 1 Motherboard Schematic Diagram Sheet 2 of 2 ...

Страница 138: ......

Страница 139: ... Model 53638 ServIC8 Figure 8 1 1 AI uclherboard Schematic Sheet if 2 8 59 ...

Страница 140: ...s a resi stive network con nected to the outputs of the Voltage Drive rs The resistors of the output of U4 I LSD i h a ve a tolerance of 1 the resisto rs a t the output of U2 a re 0 1 a n d the resistors at the output of U 7 I M S D I a re 0 01 The scaled a n a log voltage from the DAC Lad der IS applied to the Negative A m p l i f i e r U3 and the Positive A m p l i f i e r U 1 The output of one ...

Страница 141: ...S 3 THE IOK RESlSrOR I N lIE OltTt UT C IRC U I T OF u8 i s fAC fuRY 3ELECTEU TO COMPENSATE FOR OIH ERENCE IN VALUE OF Hit ZEN R OIUOF 11 THE INf Ur CHICU l OF U I L 4 U 2 U 4 U 5 A N l u r AI CMOS El FMEN I S 5 THE RESISTORS I N THE 0UJPU r UIIS OF U 2 U4 ANL U ARE f E C I S IllN RES I ST ORS 6 TO REDUCE RF I A I K H l INSTALL D I N P I ACE U TilE JUMPER 1 JI 02 J K N n I REFE N 51C TIONS C I 7 C...

Страница 142: ... Pl Figure 8 1 2 A2 Digital la Analog Converter Assembly ...

Страница 143: ...u rned on e n a b l i n g transistors Q2 Q3 a n d Q4 Clock pulses on J 3 p i n 12 a re fed t h ro u g h Q4 a n d a re con verted I nto h i g h speed p u lses which a re o u t put on f ront panel Jacks J 1 and J2 When sWitch S2 IS in the L E V E L position t h e p u lse network is disabled and front panel Jacks are g rounded R 1 8 co ntrols the delay o n Stop Channel c om parator A1 U 1 9A b y vary...

Страница 144: ...ASSEMBLY NUMBER TO ABBREV LA T ION F OR COMPLETE DESCR I P T ION 2 _ UNLESS OTHERWISE INO I C A fED TO PROBE I B A7 TO PROBE IA A6 RESISTANCE I N OHMS CAPACITANCE IN F AR ADS INDUCTANCE IN HFNR IlS REFERENCf DESIGNA rIONS f _ _ A 3 C I 7 CR 1 3 OS 1 6 J 1 3 L I 2 Q 1 4 R I I 7 S 1 3 Figure 8 1 3 A3 Calibrate Assembly 8 63 ...

Страница 145: ... 3 A3 Calibrate Assembly Figure 8 1 ...

Страница 146: ...I A 4 A S S Y 05363 60004 SER IES 1 504 SiG 7 _ _ _ _ _ _ _ _ DIGIT eR6 CR tQlG _ do _ d o L_ o l f ...

Страница 147: ... ADD ASSEMBLY NUMBER TO ABBREVIAT ION FOR COMPLETE DESCRIPTION 2 UNLESS 0 rHERWISE INDICATED RESISTANCE IN OHMS CAPACITANCE IN FARADS INDUCTANCE IN HENRIES REFERENCE P I 1 2 1 3 1 4 15 15 j I D I G I T I I D I G I T I START I OIGIT I I I I A l B T O J2 Figure 8 14 A4 Thumbwheel Assembly 8 65 ...

Страница 148: ... CR4 CR l C R3 CRS CR9 Ci CR CRtO CRt2 CFi 1 tRl 1 CR14 CR19 CR20 CR t8 CR2l CR23 CR24 CR22 CR25 CR27 CR28 CR26 CR29 CRS C R6 CR30 Figure 8 14 A4 Th umbwheel A ssembly ...

Страница 149: ... x 1 6 b l t R A M which stores b us data representing t h e front panel t h u m bwheel sWitches i n the same address locatIOns as the front panel The A1 Motherboard state machine will address and sampl e the data from eithe r t h e f ront panel thum bwheel SWitches o r RAM U 1 9 T h rough U l l depending on the status of R E MOTE The data I n U19 I S isolated f ro m the A1 main state mac h i n e ...

Страница 150: ... 1 F 6 O 3000 2V I V 1000 Ilk L j 0104 t r r 1 3 I _ _ HH t t1 14 t PIO 4fOO PI roc r I NC ...

Страница 151: ...SEIoIIlY aSREVIHED AOO S ltILY J IlJOiIIER TO ASBREVIATION fOR CO UTE DESCR PTION 2 Ul LESS OTHERWlSE INDJ CATED ROM HP IB CONNECTOR REAR PANEL RE5ISTANl E IN OHIIS E l N H r 1 t ________ ________ __ i ____ _ _ Figure 8 15 AS HP IB Schema tic Diagram I 8 67 _ _ ...

Страница 152: ...IS THE A PROBE A6 A7 W l 4 0 1 TO A 1 U24 2 f TO A1 U24 6 F I l FROM A 1 U9 7 TH ROUGH A 1 R l 0 I FROM A 1 Q3 1 1 F ROM A1 U 1 3 2 I I F ROM A 1 U 1 3 6 1 1 F ROM A 1 U9 1 TH ROUG H A1 R61 I FROM A 1 Q 1 7 ...

Страница 153: ...DD ASSEM B LY N U M B E R TO A B B R E V I AilON F O R COMPLETE DESC R I PT I O N 2 U N LESS OTH E RWISE I N D ICAT E D RESISTANCE I N O HMS CAPAC I TANCE IN M I C R O F A RADS I N DUCTANCE IN M I C R OH E N R I ES R E F E R E N C E D E S I G NATO RS A6 A7 C 1 4 C R 1 2 0 1 2 R 1 1 1 U 1 2 TAB L E OF ACT I V E COMPON ENTS R E F E R E N C E H P D E S I GNATIONS PART N U M B E R S C R 1 2 1 902 01 2...

Страница 154: ... TI P BODY TIP P R O B E Figure 8 1 6 A 6 A 7 Probe A ssembly m ...

Страница 155: ... p l i fiers A signal on the probe tiP I S routed t h rough i n p u t compensation network C 1 and R 2 to i n p u t gates I p i n s 5 61 of both d ifferential amplifiers Stop and Start dc reference voltage levels are fed through R3 and R4 to their respective i n p u t gates pi n 21 When the i n put exceeds t h e reference leve l the d ifferential amplifier w i l l c hange states provid i n g com p...

Страница 156: ...GE S MANUAL DESCRIPTION INSTRUMEUT 53 63B TIME INTERVAL PROBES OPERATING SERVICE MANUAL SERIAL PREFIX 2208A DATE PRINTED HP PART NO MICROFICHE NO DECEMBER 1 982 053 63 90 020 05 363 9002 1 INDICATES ACTION T O B E TAKEN SERIAL PREFIX OR SERIES NUMBER MANUAL CHA NGE S 2248A 1 In format ion for any opt ion al c i rc u i t boards descr ibed in this man u al a grees with the ser i e s number s on the ...

Страница 157: ...ISTOR 1 0K Page 8 6 7 Figure 8 1 5 A 5 HP IB SCHEMATIC DIAGRAM Chan ge A5 S ER I ES from 2 1 1 6 to 22 4 8 Add a 1 0K RES ISTOR from U 1 Pin 1 3 to 5V Add a 1 0K RESISTOR from U 1 P i n 8 to 5V Add a 1 0K RES ISTOR from U 1 Pin 9 to 5V Add a 1 0K RESISTOR from U 1 Pin 2 1 to 5V Add a 1 0K RESISTOR from U 1 P in 22 to 5V Page 1 Thi s i s a NETWORK RESISTOR with reference desi gnati on R50 ...

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