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HP 652A, Руководство по эксплуатации и обслуживанию

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Содержание 652A

Страница 1: ...OPERATING AND SERVICE MAN L TEST OSCILLATOR 652A r iPW HEWLETT a eAI PACKARD ...

Страница 2: ...ts this manual to the following instruments Serial No 1226A04121 and helow WARNING I To help minimize the possibility of electrical fire or shock hazards do not expose this instrument to rain or excess moisture Manual Part No 00652 90006 Microfiche Part No 00652 90056 Copyright Hewlett Packard Company 1966 P O Box 301 Loveland Colorado 80537 U S A Printed November 1974 ...

Страница 3: ...d to hp from another country Hewlett Packard warrants that its software and firmware designated by hp for use with an instrument will execute its programming instructions when properly installed on that instrument Hewlett Packard does not warrant that the operation of the instrument or software or firmware will be uninterrupted or error free LIMITATION OF WARRANTY The foregoing warranty shall not ...

Страница 4: ...5 18 5 9 5 20 5 21 5 23 5 26 5 27 5 28 5 29 5 30 5 31 5 32 5 33 5 34 5 35 5 36 5 40 5 41 5 44 5 46 5 51 5 53 5 56 5 57 5 58 5 60 5 62 Page Hum and Noise Test Optional 5 7 Amplitude Stability Test Optional 5 7 Output Impedance Test 5 8 Adjustment and Calibration Procedure 5 8 Cover Removal 5 8 Power Supply Voltage Adjustments 5 8 Frequency Calibration Procedures 5 8 Preliminary Distortion Adjustmen...

Страница 5: ...1 7 2 LIST OF TABLES Page Specifications 1 2 Required Test Equipment 5 0 Dial Accuracy Test 5 2 Typical Thermal Converter Input Output Change 5 3 Table 5 4 5 5 5 6 5 7 5 8 7 1 Page Location of Internal Adjustments 5 9 Frequency Calibration 5 0 10 kHz Monitor Calibration 5 1 5 Alignment Access Covers for Models 6 51B 2A 3A 4A 5 21 5 22 Troubleshooting Tree 5 23 5 24 Block Diagram 6 3 Oscillator Cir...

Страница 6: ...gases or fumes Operation of any electrical instrument in such an environment constitutes a definite safety hazard KE EP AWAY FROM LIVE CIRCUITS Operating personnel must not remove instrument covers Component replacement and internal adjustments must be made by qualified maintenance personnel Do not replace components with power cable connected Under certain conditions dangerous voltages may exist ...

Страница 7: ...erminal marked with this symbol must be connected to ground in the manner described in the installation operating manual and before operating the equipment Frame or chassis terminal A connection to the frame chassis of the equipment which normally includes all exposed metal struc tures Alternating current power line Direct current power line Alternating or direct current power line WARNING I The W...

Страница 8: ...able area Other voltages can be obtained using the OUTPUT ATTENUATOR and if desired an external 1 dB attenuator 1 5 The OUTPUT ATTENUATOR in conjunction with the AMPLITUDE control allows any output voltage from 10 Mnr lp1 fi A 1 6 ACCESSORY FEATURES 1 7 The accessory furnished with the Model 6 5 2A is the hp Model 1 l 048C Feedthrough Termination It is used to insure that the Test Oscillator is op...

Страница 9: ...d using expanded scale on output monitor 0 25 3 Vand I Vranges 0 7 5 3Vto 3 mVrange 1 75 ImVrange Distortion less than I 10Hzto 2MHz less than 2 at 2MHzto 5MHz less than 4 5MHzto 10MHz Hum and Noise less than 0 05 of maxirnum rated output between 10Hzand 10MHz Output Monitor Accuracy V oltmeter monitors level at input of attenuator in volts or dB Top scale calibrated in volts bottom scale in dB Ex...

Страница 10: ...wer plug of that configuration If the appropriate power cord is not included with the instru ment notify the nearest hp Sales and Service Office and a replacement cord wiJI be provided 2 9 GROUNOING RE WIREMENTS 2 10 T o protecl operating personnel the National Electri cal Manufacturer s Association NEMA recommends that the instrument panel and cabinet be grounded The Model 652A is equipped with a...

Страница 11: ...er c Use plenty of packing material around all sides of instrument and protect panel faces with cardboard strips 2 2 Section II d Place instrument and inner container in a heavy car ton or wooden box and seal with strong tape or metal bands e Mark shipping container with DelicateInstrument Fragile etc Model 652A ...

Страница 12: ...ication of primary power c S e t F REQUENCY RANGE switch a nd FREQUENCY Dial to desired output frequency d Set OUTPUT ATTENUATOR switch to desired voltage range impedance whlch matches impedance of load f Place MONITOR switch in NORMAL position and adjust AMPLITUDE controls for desired output voltage as indicated on the output monitor g The output monitor M l indicates the ffiS value of the output...

Страница 13: ... s a fi ne frequency adju stment for FREQUENCY d ial LINE ON Switch S3 and P i lot Lamp Switch applie s primary power to in strument p i lot lamp glows to indicate application of primary power INDICATOR LIGHT Glows when power sw itch is set to L1NE 1 1 5 230 V Slide Switch S5 Set s in strument to operate from a pr imary power source of e i ther 1 1 5 Vac or 230 Vae CDOUTPUT ATTENUATOR Attenuate s ...

Страница 14: ... 0 u n w f w 2 10 5 e _ I r n 1 hill or 1 1 1 _ L q 1 5 f I f 15 f i ltLI t i 1 r t I 1 i j I 10 r Section III h S ct MONITOR switch to EXPAND po sition 1 Ad just RE F SET ontrol s unt i l desired reference is ind icated on the percent s cale of the o ut put monitor j U se AMPLI TUDE contr ol sto maintain set reference whenever frequ ency of o sc i llator ischanged 1 1 t o r 1 I T 1 1 I Jt I 1 It ...

Страница 15: ...differential amplifier through a network insensitive to frequency Only at the selectcd frequency will the positive feedback exceed the negative feedback voltage to sustain oscillation 4 S The RANGE switch SI selects combinations of resistors and capacitors S l RI through S lR24 and SICl through SICI5 to establish the frequency sensitive RC networks for the six frequency ranges of the Test Oscillat...

Страница 16: ... amplifier output circuit and as a current source to provide full scale monitor indications The high input impedance of the amplifier prevents the power amplifier from being loaded with the low impedance of the output monitor Ml The emitter follower AIQ8 provides a positive feedback voltage which is applied between resistors AIRI8 and AIRI9 in the collector lead of amplifier AIQ9 The application o...

Страница 17: ...dance to obtain the new output impedance level at the 600 ohm connector 4 29 REGULATED POWER SUPPLY 4 30 The regulated power supply provides all de voltages required by the 652A Test Oscillator circuits The power supply consists of a 30 V and 25 V series regulated supply Each power supply is protected by current limiting and foldback current limiting 4 31 The 30 V and 25 V power supplies are func ...

Страница 18: ...hese servicing instructions are for use by qualified personnel only To avoid electrical shock do not perform any servicing other than that can tained in the operating instructions unless you are qualified to do so ...

Страница 19: ...ifferentia Voltmeter Stability 0 1 Per Mo DC Standard Attenuator Attenuation Range 90dB in 10dB steps hp Model 3550 VHF Frequency Range 10Hz to 10MHz Attenuator with known accuracy Amplifier Gain 40dB hp Model 461A Amplifier Frequency Range 10Hz to 10MHz Thermal Converter Input 3V RMS hp Model 11049A Output 7mV dc Thermal Converter Accuracy 0 2 Frequency Range 10Hz to 10MHz Input Impedance 50ohms ...

Страница 20: ...erformance Tests NOTE Paragraphs 5 18 and 5 19 are labeled as Optional tests for the f ollowing reasons Paragraph 5 18 Hum and Noise Test Top cover of 652A must be removed to make this test Paragraph 5 19Amplitude Stability Test 652A output amplitude must be monitored continuously for one month to make this test TEST OSCILLATOR hP652A 5 7 Frequency Range Test a Connect 652A 50 ohm output to dc inp...

Страница 21: ... c f Perform Amplitude Adjustment in Paragraph 5 38 if tolerances are not met 5 11 Flatness Test Amplitude not readjusted to a refer ence on the output monitor NOTE A thermal converter is a square law device The dc output willchange approximately twice the TEST OSCILLATOR hP652A 652A S 0852 Frequency Dial 2 5 5 8 0 2 5 5 8 0 1 2 5 5 8 1 0 2 5 5 8 0 2 5 5 8 0 1 2 5 5 8 0 50 OHM FEED THRU hpl l048C ...

Страница 22: ... Table 5 3_ Typical Thermal Converter Input Output Change CHANGE AT CHANGE OF DC AC INPUT OF NULL METER THERMAL CONVERTER INDICATION FROM NULL SETTING 0 25 35 microvolts 1 140 microvolts 2 280 microvolts 3 420 microvolts 4 560 microvolts The ac input is set for 7 0 mV at the output of the thermal converter change in the ac input Table 5 3 would result in 70 llV change in ac input times 1 7 transfe...

Страница 23: ...e supply for null indication on dc null meter d Set 652A FREQUENCY dial to 1 e Readjust 652A AMPLITUDE and VERNIER controls for 3 0 V on 652A OUTPUT MONITOR Do not readjust reference supply Record dc null meter indication 5 4 Section V f Set 652A FREQUENCY dial for 12 Hz and repeat Step 5 12e g Set 652A FREQUENCY dial for 1 5 Hz and repeat Step 5 12e h To determine that the readings taken in Steps...

Страница 24: ...e not met first assure that tolerances of Paragraphs 5 1 1 and 5 1 2 are met then perform calibration procedure of Paragraphs 5 37 and 5 38 5 14 Output Monitor Accuracy Test a Connect ac voltmeter to 50 ohm output terminal of 652A as shown in Figure 5 2 Use an ac voltmeter with known accuracy at frequency to be used 400 Hz b Set 652A controls as follows FREQUENCY RANGE XIOO FREQUENCY dial 4 OUTPUT...

Страница 25: ... 50 ohm output terminal as shown in Figure 5 2 TEST OSCILLATOR hp652A ro I 1 50 OHM FEED THRU hpl1048C cf b Set 652A controls as follows FREQUENCY RANGE Xl 00 FREQUENCY dial 4 OUTPUT ATTENUATOR 3 0 V OUTPUT MONITOR NORMAL OUTPUT AMPLITUDE and VERNIER Extreme Clockwise c Note reading on ac voltmeter d Set OUTPUT AMPLITUDE and VERNIER controls to extreme counterclockwise position AC voltmeter should...

Страница 26: ...der lug on tuner frame to chassis Lead dress is critical to f requency accuracy andflatness Residual hum and noise should read greater fban 66 dB from 0 dB reference set on rms voltmeter in Step c e Remove clip lead and replace652A top cover 5 19 Amplitude Stability Test Optional a Connect ac differential voltmeter and strip chart recorder to652A as shown in Figure 5 6 NOTE Float ac di f f erentia...

Страница 27: ...l or any other cleaning solution except mild detergent and water Do not apply any commercial moisture sealing spray 10 the boards application of these agents may cause leakage paths 5 23 Cover Removal 5 24 To remove top or bottom cover remove two retaining screws from sides of cover slide cover about 1 2 inch to rear lift it off To replace cover reverse procedure 5 25 To remove side cover remove t...

Страница 28: ...6 2A c oeISA AIR40 o Mnrl l i A o T O P Sl SiC4 SiC2 SIC7 s elo SiC9 BOTTOM A2C14 A2R17 A2R16 A2TPi 8A2TP2 lA2e5 Figure 5 7 Location of I nternal Adjustments 55 I 5 9 Section V ...

Страница 29: ...te directions If the adjustments do not provide specified performance then the procedure for changing padding resistors of Table 5 6 should be carefully followed d Table 5 7 lists frequency accuracy required at each test frequency NOTE 5 10 NOTE I f any adjustments are necessary the top and bottom covers should be in place when final frequency and A2T P2 voltage tests are made All internal shields...

Страница 30: ...quency of 965 Hz to 970 Hz if not loosen tuner coupler MP6 Figure 7 1 and slip tuner until specified frequency is obtained See CAUTION Section V g Set 652A FREQUENCY dial for a counter indication of I kHz Dial should read I if not carefully perform following procedure I Remove FREQUENCY dial knob and loosen four dial retaining screws 2 Slip FREQUENCY dial to read I wilh counter indication of I kHz...

Страница 31: ...le 5 7 while monitoring voltage at A2TP2 At I and 10 on the dial A2TP2 voltage should be within 20 mV of reference voltage noted in Paragraph 5 30 Step f over the entire range of the dial A2TP2 voltage should not vary more than 40 mV c On each range if frequency or A2TP2 voltage is not correct at I on dial change the value of RANGE switch resistors Table 5 6 for that range The two resistors should...

Страница 32: ...lowing adjustments are critical For each adjustment remove cover and make the adjustment then replace cover before making frequency or voltage checks I fdesired Fi gure 5 10 gives a scaled drawing oftop and bottom Section V alignment access covers with cut outs lhat will allow adjustments while the covers are in place The dimensions are given in inches a Connect equipment as shown in Figure 5 8 b ...

Страница 33: ...mum distortion as indicated on distortion analyzer Distortion should be less than 1 40 dB down NOTE Distortion will be typically 50 dB down 5 14 MOdel bolA 5 40 Normal Monitor Calibration NOTE The following adjustments are critical Final voltage measurements must be made with all instrument covers in place a Connect 652A to ac voltmeter as shown in Figure 5 2 b Set 652A controls as follows FREQUEN...

Страница 34: ... Adjust A3RI4 for a 652A monitor indication of 2 5 Repeat Steps e through g until no adjustment is needed TEST OSCILLATOR hp 652A I I 652A e OS07A 50 OHM FEED THRU hPI I048C n ctlon V 5 43 10 MHz Monitor Response Adjustment a Connect thermal converter de null meter and reference supply to 652A as shown in Figure 5 3 setting 652A and reference supply outputs to minimum before connecting Do not exce...

Страница 35: ... were not devised to measure all circuit parameters but to localize the malfunction Therefore additional checks and measurements including visual inspection will probably be required to completely isolate the faulty component 5 50 The Block Diagram Figure 6 1 shows that the instrument can be considered as five basic blocks the Oscillator Circuit the Power Amplifier the Normal Moni tor Circuit the ...

Страница 36: ...llator circuit is given in Paragraph 5 53 Check the ac input voltages at Al pin 3 and 5 and Al pin 6 and 7 NOTE Momentar y shorting of the 30 V or 25 V power supply may cause a Locked Current Limit condition if the power supplies are still loaded by the 652A circuitry In the Locked Current Limit condition the de output drops to less than 2 V and does not return to normal when the short is removed ...

Страница 37: ...PI should cover a range of approximately I S V to 10 V t tinn V Check for 72 V ac at the junction of A3CRI and A3CR2 and check A3Ql A3CRl and A3CR2 Vary the REF SET controls from minimum to maximum voltage at A3TP2 must vary from 1 6 4 V to 1 8 8 V Troubleshoot the Variable Reference Supply in the same way as any power supply Check A3CR6 A3Q7 and A3Q8 If A3Q8 is shorted A3Q7 will probably also nee...

Страница 38: ...r if either has to be replaced NOTE In some instruments A2Q2and A2Q3 will be dif f erent types f rom those listed in the Parts List Table 7 1 of this manual In this case if either A2Q2 or A2Q3 has to be replaced then replace both together with the new part number given in this manual Also the value of SICI3 SICI5 A2C21 A2R16 and A2R24 may have to be changed in accor dance with the procedure outlin...

Страница 39: ...en working on these switches observe the following rules a Use a low heat 25 to 50 watts soldering iron with a small tip h When replacing components attempt to dress them as nearly to their original alignment as possible c Clean excessive flux from the connection and ad joining area d After cleaning the switch apply a light coat of lubriplate to the switch detent balls DO NOT apply lubricant to sw...

Страница 40: ...i Ul 1 1t z 0 T I Lc I t _1 I rlO250 tlo L_p L L _ ___ ____ I TOP COVER PI 1 Ul 2 4 0 36 5 N u Section V I ru LiE 2 J I J I1 I I I I ill 1 z 2 3 5 S I l 7 4 1 0 8 1 BOTTOM COVER Figure 5 10 Alignment Access Covers for Models 651B 2A 3A 4A 5 2 1 5 22 ...

Страница 41: ...AND WITHIN SPEC1FICATIONS AT 90TH OUTPUT TERMINALS fALSE 2 CHECK FI AND ENSURE 55 is IN THE CORRECT POSITION 3 READ NOTE OF PARAGRAPH 5 52 I FAlSE TRUE I p W SB __ J I I 1 I 4 I 3CV O 9V AT AI PIN I I i6V p p 25V O 75V AT AI PIN 2 AT A2 P I N 20 I t iLL 7 5 1 2 I 1 3 3ev RMS 5 A T A I PINS S 5 CHECK POWER SUPPLY CHECK CHECK 35V RMS f 5 AT A1 PINS 6 S 7 CONNECTIONS TO POWER I OUTPUT FALSE t r UE EX...

Страница 42: ...2 7V AT AI PIN i EXPAN l MONITOR CIRCUIT r I 20 I VOLTA O A6G O A I N 9 FAl SE t23 CHECK NORMAL MONITOR DETECTOR 2 2 9V O 2V AT 1 3 TP 25 CHECK VARIABLE REFERENCE SUPPLY 24 VOLTAGE RANGE AT A3 TP2 16 4V TO IB BV TRUE I t 2 1 CHECK MI 26 CHECK A3 02 THPU A3 06 _ _ _ _ _J Figure 5 1 L Troubleshooting Tree 5 23 5 24 ...

Страница 43: ... output monitor Freq Range 100 Hz to I MHz 1 0 Hz to I MHz 1 0 Hz to 1 0 MHz 5 12 Flatness Amplitudenadjusted to a reference on the normal output monitor Freq Range 1 0 Hz to 20 Hz 20 Hz to 4 MHz 4 MHz to 1 0 MHz Tests Perfonned by Date _ _ _ _ _ _ _ _ _ _ _ _ _ Period Frequency Min Max 100 ms 10 MHz Period Frequency Min Max 97 ms 103 ms 19 4 ms 20 6 ms 9 7 ms 10 3 ms 9 8 ms 10 2 ms 1 96 ms 2 04 m...

Страница 44: ...to 9 09 mV 30 dB 8 91 mV to 9 09 mV 40 dB 8 9 1 mV to 9 09 mV 50 dB 8 9 1 mV to 9 09 mV 60 dB 8 91 mV to 9 09 mV 70 dB 8 82 mV to 9 18 mV 5 16 AMPLITUDE CONTROL AC Voltmeter greater than 20 dB 5 17 DISTORTION Freq Range Dial Setting Distortion Meter XIO I less than 1 XIOO I less than 1 XIK I less than 1 XIOK I less than 1 XIOOK I less than 1 XIOOK 5 less than 1 XIM 2 less than 1 XIM 5 less than 2 ...

Страница 45: ...R CODE IS THE SAME PIN CONNECTOR CONN CTOR ON AS THE RESISTOR COLOR CODE FIRST EYELET OR STAND MAY OR MAY rr I A WHT RED WIRE NUMBER INDICATES BASE COLOR SECOND I OFF TERMINAL MAY OR NOT BE NUMBERED p NUMBE R INDENT FIES WIDER STRIP AND I MAY NOT 8 NUMBERED I COMPLETE I f j THE THIRD INDICATES THE NARROWER AP flY DESIGNATOR 1 7 STRIP DENOTES WHT RED YEL WIREJ I 8 I IS A2AIRI I PARTIAL R EFERENCE D...

Страница 46: ...AS VOLTAGE FEEDBACK PEAK I I DETECTOR A207 p REGULATED POWER SUPPLY AI PIN 5 43VAC I n jr 11 SUPPLY I Gh Ii S80 MWI 30VDC 11 f I l I 1 0 J J I 25VDC I Ai PIN 6 4QVAC SUPPLY SEE DETAIL BELOW t NORMAL MONITOR CIRCUIT AMPLIFIER I AI09 EM TTER FOLLOWER AIQ8 RECTIFIER AICR8 CR9 i EXPAND MONITOR CIRCUIT __ iPI 1 8 TO IOVDe AVERAGE DETECTOR A3CRI CRZ QI EMITTER FOL LOWER A3Q5 06 S2RI3 A3 PiN 9 o TO I5VDC...

Страница 47: ...2 F6 D2 03 A5 C2 C5 C4 C7 D2 07 C2 B6 C3 E3 C3 06 C3 D6 D3 E7 D4 El E5 C7 E4 E D3 C6 I D3 B6 I D3 26 27 28 2 9 30 31 32 33 34 35 36 37 3S 39 40 41 42 43 44 45 46 4 WHTIORN GRN WHT ORN YEL REO VIO 7 6 5 4 ca R E3 E2 83 C5 C5 C5 C5 05 D5 C6 E7 E6 E6 B6 B6 B6 B7 B7 B5 D2 5 012 010 6 7 VIO RED C22 CI5 Cl9 Cia 011 652A 8 0826A 12 ASSEMBLY WIRE COLORS BOTIOMI PINNQ WlRE COLon WHITE w BLACK D WHT ORN D B...

Страница 48: ......

Страница 49: ... IXlool g F J fXIOKJ 2IQQEJ 1 ZJffi 10001 1 7 14 IPF R47 O IIOMV RMS CR2 RII eR9 IRANGE SIE R 2 4 274 01 13 G 1 I iOO 4 03 eR A I 3 6 10 24 I II I en II SO c 2 7 T O 2 eR I I I I IK oo 2K eR7t eR6 I I R6 I I I I soo I I c5 r J iIFeEOUE CYI r I 14 jP7PF 9 U 7 g6 I R30 I I H I J K GRN IRANGEl SIC F SIRI3 24 5M SiRI4 1 8M I L5 WQJ SiRI5 2 45M SIRI6 120K L I I I I II I 1 J S Cli Q 6ePF SiCI2 I OPF IMH...

Страница 50: ...K I I RI3 43K I 10 I W F t TP2 L I L I SEE NOTE 13 T i l I I 23 70 A2VDC _ 3 l y _ 12 I _ VI _ _ h 7 1015 I 300 I __ I _ ___ I __ 1 1 SIC7 j 25V I ffiINGEI IRANGEI 1 AMPLITUDE 5 20PF 10KHZ j C2IQ JP O S C R PIO SIC RIc sED R28 0 ffiRNIERJ ADJUST F tOO I 2J i x iOO I 00 0 0 I l X i i L 1 5 J C HAF f G 5 PER SUPPL E MENt A i I XiC J o COPYRIGHT 1966 ElY HEWLETT PACKARD COMPANY o A 3 0 21 H V 1 4 C D...

Страница 51: ... CRI9 El CR4 8 GRI2 R7 R5 R4 R4Z R33 R34 R35 R3S o CR6 RI R3 R2 CRI4 CRI5 C19 CR22 020 CR23 R39 J N I 8__ BLK 1 __ wHTI BLU 6e WHT BRN VIO e WHTIBRN BLU e BLU 3e WHT BRN ORN R3 CR24 CR25 CI8 C21 5 e _WHTIBRNIRED R37 CR26 J a _ C22 Y I GRN I 12 r LWHT GRN L WHT YEL p A3 ASSEMBLY WHT BRN BLU 552A 8 0829A BLU WHT BLU GY VIO RED WHT BLK GRN WHTIBLK YEL WHTIVIO GY ...

Страница 52: ...I I I I I I II If o r g f w I w iL I ro u o D I I I I I I I I I I I I I I I I J ...

Страница 53: ...MPLIFiER 1 ieo 180K 270 I I II RiO 9090 r r RH 9090 RI2 240K 10K I II I I VARIABLE REFERENCE SUPPLY 16A TO iSoaVDC eTP2 6 19V I RIB C 10 i4K C 4 R S l ilK I I I eo I I I I L L L _L_l __ l 52 J oda 2 Figure 6 3 Normal and Expand Monitor Circuits 6 7 6 8 ...

Страница 54: ...l c J CI7 CI4 I I I I R2 9 R 3 0 8 2 3 f CRJ9 R32 30Y CR4 GR 2 R7 R5 8 4 R42 R33 R3 4 R35 R36 CR6 R I R3 82 CRI4 CRI5 CI9 CR2 2 20 cRZ3 R38 l N I Be _ BLK __ WHT BW 6___ WHT BRN VIO 7e _ WHT BRN BLU 9e _8LU 3e WHT BRN ORN 839 CR24 CR2i5 CIS C2I 1 _ I WHT BRN RED R37 CA26 C22 Y1 n _GRN 14 T f 7 j 2 r ORN WHT RED ORN WHTIRED VIO 65rB 8 4153 LWHT GRN WHT I YEL ...

Страница 55: ...I I _ il RI2 5 76K A c Ui I w S4 I Ii j _L g I I Ii j i I_L __ H II I CR5 CR6 I l R3 R2 1 30K 2 4K W CRI5 CRI4 t 16 2V R42 3 9 CR22 16 2V R9 4 32K CRI6 6 2V t5V NO L METER CiRCUIT LI I I I C4 111 I I 1 3 I I iCRI9 IR34 I 1 wIH 1 47 I T r 25V V NOTt EARLIER INSTRUMENTS CONTAiN TI PRIMARY WIRE COLOR CODES AS FOLLOWS II g I I j I I I I lO I I I I 9 6 CR4 RI3 I 121 is CRle CRI7 R39 2 4K CR24 16 2V L__...

Страница 56: ...number 7 3 Miscellaneous parts are listed at the end of Table 7 1 7 4 ORDERING INFORMATION 7 5 To obtain replacement parts address order or inquiry to your local Hewlett Packard Field Office See Appendix B for list of office locations Identify parts by their Hewlett Packard part numbers Include instrument model and serial numbers 7 6 NON LISTED PARTS 7 7 To obtain a part that is not listed include...

Страница 57: ...hp PART NO HARDWARE DESCRIPTION Q 3030 0022 Screw Se 6 32xl 8 long eD 3030 0001 Screw Set 8 32x3 16 long CD 3030 0004 Screw Set 8 32x1 long MP9 MPII Figure 7 1 Frequency Tuning Assembly Mechanical Parts MP44 THRUST SPRING BEHIND MP9 65IA B 0691 c ...

Страница 58: ...Model 652A Section VII r TOP i r BOTTOM MPi6 MPI8 MP21 0 t 1 I MP36 Figure 7 2 Chassis Component s Mechanical Parts MPI9 MP20 7 3 ...

Страница 59: ...vdcw C fxd 15 iF 10 20 vdcw C fxd 1 uF 80 20 100 vdcw Diode S Diode 5i 50 m A 30V Not assigned Diode 5i 8V 20 m A at 1V 1 5pF Diode Ge 60 wiv Diode 5i 100 m A at 1V 100piv 12pF Diode 5i 50 mA 30V Diode bk dn 16 2V Diode 5i 50 m A 30V Diode TC REF Diode Si 50 mA 30V Diode TC REF Not assigned Diode Bkdn 16 2V Diode 5i 50 m A 30V Diode Bkdn 16 2V Diode 5i 50 mA 30V Diode Bkdn 13V Not assigned Tstr 5i...

Страница 60: ... A1R26 0683 1535 1 R fxd comp 15 k n 5 1 4W 01121 CB1535 A1R27 0698 0026 1 R fxd m etflm 1690n 1 1 2W 19701 MF7C T O obd A1R28 0683 5115 1 R fxd comp 510n 5 1 4W 01121 CB5115 A1R29 06984483 1 R fxd camp 18 7K 1 1 8W 24546 C4 1 8 To 1872 F A1R30 06984445 R fxd 5 76K 1 1 8W 16299 C4 1 8 To 5761 F A1R31 0698 4435 1 R fxd comp 2 49K 1 1 8W 16299 C4 1 8 Th 2491 F I A O 7 50 04B tr R f cl eem1 l 1 J f f...

Страница 61: ...d Al elect 100 jJF 75 10 12 vdcw 4 1 1 I 1 1 1 1 4 2 7 1 2 3 4 2 c var air 1 7 to 14 1 pF C fxd Al elect 300 MF 75 10 6 vdcw C fxd Ta 1 8 p F 10 35 vdcw C fxd Al elect 300 p F 100 10 15 vdcw C fxd Al elect 500 p F 100 10 15 vdcw C fxd Ta 1 8 p F 10 35 vdcw c fxd mica 12 pF 5 C fxd Al elect 1200 MF 100 10 0 C fxd Ta 1 8 p F 1O 35 vdcw C fxd Ti02 3 3 pF 10 i C fxd Ti02 6 8 pF 5 500 vdcw Diode breakd...

Страница 62: ...t assigned 2 R fxd camp 1500n 10 1 4 W 1 R fxd comp 2000 n 5 1 2 W 1 R fxd camp carbon 430 n 5 1 W 1 R fxd camp carbon 680 n 10 2 W R fxd camp 2 7 n 5 1 4 W 2 R xd met flm 100 n to 25 1 2 W 1 R fxd camp 360 n 5 1 4 W 0757 0159 R fxd prec met Jm 1000a 1 1 2 W 0683 0275 R fxd comp 2 70 5 1 4 W 0757 0500 1 R fxd met flm 30 1 a t1 1 4 W 0757 0277 1 R fxd met flm 49 9 a t1 1 8 W 46118 444Sm 1 041 1 R f...

Страница 63: ... R fxd met fIm 10 KQ 1 1 4 W R fxd comp 270 Kn 5 1 4 W R fxd comp 180 KQ 5 1 4 W R fxd comp 270 K 2 5 1 4 W R fxd comp 30 KQ 5 1 4 W H fxd comp 10 K l 10 1 4 W R fxd met fIm 9090 n 1 1 4 W R fxd comp 240 K 2 5 1 4 W R fxd comp 10 Kn 10 1 4 W R var ww 250 n 20 1 1 2 W H fxd comp 390 Q 5 0 1 4 W R fxd comp 10 KD 1O 1 4 W R xd comp 15 KD 10 1 4 W R fxd comp 820 n S 1 4 W R fxd met fIm 11 Kn 1 0 1 4 W...

Страница 64: ... Nut I usen0lde Shield outer cover Bezel meter window Knob bar skirted black Plate frequency dial Knob round black dial We f v E r Indicator dial Dial Cover assembly top 11 long Panel rear 00651 04001 5060 8587 00651 00213 5060 0731 1 1 1 1 2 Frame assembly 5 x 11 full module 5060 8737 2 Retainer handle 5 high 5000 8597 2 Cover side rear 5 x 11 full module 5000 8599 2 Cover side front 5 x 11 full ...

Страница 65: ...arbon flm 24 5 MQ 1 2 VI R fxd camp L 8 MD 5 1 2 W R fxd met flm 2 45 MQ 1 1 2 W R fxd comp 120 kn 5 1 2 W R fxd met flm 245 kD 1 1 2 W R fxd camp 10 kQ 10 1 1 2 VI R fxd met flm 24 5 kS1 1 1 2 W R fxd comp lOOOn 10S 1 2 W R fxd met flm 251 0 2 1 1 2 VI R fxd camp 565 1 10 1 2 VI R fxd met flm 225 2 1 1 2 W R fxd camp 27n 5 1 2 V i 1 Attenuator assembly 2 R fxd met flm 790 5l 1 1 2 W 1 R fxd met f...

Страница 66: ...onics Corp WesUnghouse ElectrIc Minneapolis Minn Corp Electronic Tube Di9 Elmira N Y FUmohm Corp New York N Y Cinch Graphik Co City of Industry Cal SUicon TranSistor Corp Carle Place N Y Avnet Corp Culver City Cal Fairchild Camera lnst Corp Semiconductor Div Mountain View Cal Minnesota Rubber Co Minneapolis Minn Birtcher Corp The Monterey Park Cal Sylvania Elect Prod Inc Mt View Operations Technic...

Страница 67: ...iC Inc Circle F Mfg Co George K Garrett Co New Haven Conn Hartford Conn Trenton N J Dlv MSL Industries Inc Philadelphia Pa Federal Screw Products Inc Chicago Ill Fischer Special Mfg Co Cincinnati Ohio General Industries Co The Elyria Ohio Goshen Stamping Tool Co Goshen Ind JFD Electronics Corp Brooklyn N Y Jennings Radio Mfg Corp San ose CaL Groove Pin Corp Ridgefield N J Signalite Inc Neptune N J...

Страница 68: ...rum ent S erial Pr efix Make Manual Chang es 632 00250 and below No 1 1 226A 04170 and below 954 021 35 and below No 2 1 226A 04309 and below Blue Instruments No 3 Below 0964A02771 No 4 0964A03070 and below No 5 9 1 1 01 736 and below CHANGE No 1 No 6 Delete A2C25 Delete A2R46 Change A2C l l to 200 microfarads hp Part No 0 180 0060 Change A2CR5 to a breakdown diode 7 87 V 2 hp Part No 1 902 0778 C...

Страница 69: ...0652 00201 Table 7 1 Page 7 9 Change the hp Part No of Rack Mount Kit to 00652 S4401 Table 7 1 Page 7 S Change the hp Part No of MPI S to 1 205 0008 Add Nut heat sink P O MPI S Table 7 1 Page 7 9 Add Insulator washer for MPI S Table 7 1 Page 7 4 Change the hp Part No of AIQ2 to I S50 0107 Change the hp Part No of AIQ3 to I S53 0007 Change the hp Part No of AIQ5 to 1 850 0107 Cbange tbe hp Part No ...

Страница 70: ...sing the series regulator 02 to reduce the output voltage level until the load C tusing an excessive current is remo vcd Diodes AICR6 and A1CR7 protect the control transistor AI 06 ag linst short circuits between the two voltage supplies or short circuits in the output of the 25 volt supply Page 5 8 Replace Paragraph 5 26 with the following paragraph 5 26 Power Supply Voltage Adjustments a Connect...

Страница 71: ...rmally proceed to Step 9 if it docs not remove external circuits by disconnec ting A2 Pins 1 and 6 A3 Pin 7 and Al R 1 7 If the supply now operates then the trouble is in the external circuits If the supply still does not operate check Q l AIQ2 AIQ3 AleRl and AI CR2 Isolate the 25 V supply from external circuits by disconnecting A2 Pins 2 and 7 A3 Pin 4 and Al R24 AI R26 and Al R28 If the supply n...

Страница 72: ...re C 4 Al ASSEMBLY MONITOR CIRCUIT powm SUPPLY BLK WHrlBLU WHT BRNIVIQ WHT BRN BLU BLU WHT eRN ORN WHT BRN RED GRN Figure C 4 AI Component Locator hp Part No 00652 66502 Page 6 9 6 10 Figure 6 4 Change the Power Schematic drawing as in Figure C S Figure C 5 Power Supply Schematic Drawing C 5 ...

Страница 73: ...xd Al elect 300 p F 75 10 6 vdnv 56289 30n 107G006DF2 DSM C fxd Al elect 50 fJ F 75 10 25 vdcw 56289 30D506G025CC2 DSM C fxd Al eleet 100 d 7f o 10 15 vdew 56289 30DI07G015DC2 DSM C var air 1 7 to 14 1 pF 74970 189 505 5 C fxd AI ekd 200 f1 F 75 10 30 vdcw 56289 D38559 C xd Al elect 65 pF 100 10 eo vdcw 562B9 Type 30D 036978 Diode Si 200 piv Diode breakdown 7 32 V 20 a 400 mWglass Diode Si 100 mA ...

Страница 74: ...C2 and S I C alternately until counter indicates frequency of 10 kHz and A2TP2 voltage equals voltage recorded in Step h 5 30 Xl K Range Adjustment c AC Voltmeter should indicate 1 1 0 IO mV rms lf A2TPl voltage is not in tolerance change value of A2R 1 6 to bring voltage within specified limits increase value of A2R 1 6 to decrease A2TPI voltage and vice versa Do not solder A2R16 in place at this...

Страница 75: ... To c heck this reconnect the peak detector fepbee A2R16 with a 500 ohm potentiometer switch the 652A to the Xl K range and vary the value of the potentiometer while tuning the dial over its entire range Page 6 4 Change A2 Component Locator drawings as in Figure r 7 Fp A2 ASSEMBlY j e 8 2 04 a Aooendix C 3 4 WH TIORN GRN WHT ORN YEL RED Via 5 6 RID 7 ORN via REO C TI 2 Lilll 3 llHll B czz 1ill l 2...

Страница 76: ...tic 9 Page 7 6 Table 7 1 Change A2R16 from 2100 2604 to 0757 0410 301 n 1 1 8 W Add A2Rl S 0684 101 1 100 n 1 0 1 4 W Delete A2R47 C n 11 StlElUH UI PU IIT UUlIUS CR L Q R G I Fl l m I rlt I E15 01 En rio HH i H G 2 f m I 7 I lJ en H J12 5 I J23 I 0 1 1 1 I I I G 2 1 f72 T I 2 F 3 1 I 1 1 m I w l I Hl 1 12 I FIe i 22 i G16 m H17 i I GIl I R H o m w m IItl W no m en G J m C 9 ...

Страница 77: ...s RESISTOR I 048C R 1 1 094B R 1 095A R F I X E D RI 71 50 n 1 1 W 75 n I I W 600 n I j4 l j4 W 1 c7 1 lJ BNC FEMALE i CONNECTOR 1250 0083 Ii CONDUCTOR CENTER PIN e K 1 1 048 27603 fR SLEEVE THREADED 1531 0246 CONNECTOR 8NC MALE 1250 0052 Figure 2 Exploded View 0698 81 55 0698 81 54 0968 626 1 1 1048C 1 1 094 1 1095A 90004 November 1 971 Printed i n U S A HEWLETT PACKARD FOR MORE INFORMATION CAll ...

Страница 78: ...elete A 1 R32 and connect A 1 U2 pin 3 to junction of A 1 R 3 1 and A 1 CR20 Add a connection from A 1 U 1 pin 4 to ground Page 7 5 Table 7 1 De ete A1 R32 Page 7 6 Table 7 1 Change A2CR4 to 1 90 1 0033 Change A2CR6 CR7 to 1 90 1 00 1 4 Paga Tabla 1 Change A2R47 to 07 57 0490 274 O Change A3C l l to 0 1 2 1 0 1 27 1 7 1 4 1 pF Page 7 9 Table 7 1 Change MP1 8 to 1 205 0220 Change Rl to 0683 2235 22...

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