HP 4328A Operating And Service Manual Download Page 8

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Summary of Contents for 4328A

Page 1: ...this manual to Kobe Agilent Technologies International Inc 1 3 2 Murotani Nishiku Kobe Japan 651 2241 Attention Ayumi Sakamoto TEL 81 78 993 2883 MILLIOHMMETER 4328A I 30 LINE IQO ON OFF FAST 11 HAfiG 1 HEWLETT PACKARD ...

Page 2: ...on of any electrical instrument in such an environment constitutes a definite safety hazard KEEP 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 dan gerous voltages may exist even with the power ca...

Page 3: ...l shock in case of fault A terminal 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 chas sis of the equipment which normally includes all exposed metal structures Alternating current power line Direct current power line Alternating or direct curren...

Page 4: ...ingehalten werden GERAUSCHEMISSlON Lpa 70 dB am Arbeitsplatz normaler Betrieb nach DIN 45635 T 19 Manufacturer s Declaration This is to certify that this product the HP 4328A Milliohmmeter meets the radio frequency interference requirements of directive 1046 84 The German Bundespost has been notified that this equipment was put into circulation and was granted the Iight to check the product type f...

Page 5: ...OPERATION Add the followmg NOTE to paragraph 3 45 NOTE An erroneous measurement reading can occur if both leads 1n one probe and the current lead only on the other probe makes contact with the device under test Under this condition the meter may mdicate approximately mid scale on any meter range selected You can verify i the measurement readmg 1s correct by checking if the resistance measurement a...

Page 6: ...f the battery does not have enough charge CHANGE 1 Section 6 Replaceable Parts Table 6 2 Reference Designation Index See Table 1 Parts Information CHANGE 2 Section 6 Replaceable Parts Table 6 2 Reference Designation Index See Table 1 Parts Information Page 4 7 Figure 4 5 and Page 8 19 Figure 8 17 A2 PHASE SENSITIVE AMPLIFIER Assy Change the value of R230 to 56k0 Page 8 21 Figure 8 19 Change the va...

Page 7: ...Page 6 5 Table 6 2 Reference Designation Index See Table 1 Parts Information Page 4 7 Figure 4 5 and Page 8 19 Figure 8 17 A2 PHASE SENSITIVE AMPLIFIER Assy Change the value of R234 to 3 16kn 3 ...

Page 8: ... A2R230 0698 3161 A2R230 0698 5635 DS1 1450 0566 DS1 1450 0613 R3 0683 4735 R3 0683 3335 A3R335 0683 1545 A3R335 0698 3451 A2R234 0757 0439 A2R234 0757 0279 I L 4 DESCRIPTION TRANSISTOR SILICON FUSE SLOW BLOW 100mAT R FXD 38 3k l 1 1 8W R FXD 56k l 1 1 8W LAMP INDUCTOR LAMP INDUCTOR R FXD COMP 471 0 5 25W R FXD COMP 33k0 5 25W R FXD COMP 150k0 5 1 4W R FXD COMP 1331 01 1 8W R FXD 6 811 01 1 8W R F...

Page 9: ... SERIALS 18 8J06 t21 AIHJ ABO E See Sect on VII for Other Serial Prefixes COPYRIGHT YOKOGAWA HEWLETT PACKARD LTD 1967 9 1 TAKAKURA CHO HACHIOJI SHI TOKYO JAPAN Manual Part No 04328 90008 Microfiche Part No 04328 90058 MANUAL Prmted MAR 1989 Ff OW HEWLETT PACKARD ...

Page 10: ...ion _ 4 1 4 4 Simplified Functional DescriptiOn 4 1 4 7 Oscillator Circuit _ 4 2 4 10 Schmitt Trigger Cucuit 4 2 ii Section Page IV THEORY OF OPERATION Cont d 4 12 20mV Peak Limiter 4 2 4 14 Phase Sensitive Voltmeter 4 2 V MAINTENANCE 5 1 5 l ntroduction 5 1 5 3 Contents 5 1 5 4 Performance Checks 5 1 5 6 Adjustments _ 5 1 5 9 Test Equipment 5 1 5 11 Maintenance 5 2 5 13 4328A Performance Checks 5...

Page 11: ... 1 B Test Leads 3 6 4 Terminal Device Measurement 3 7 Basic Low Resistance Measurement 4 1 SimphfLed Block Diagram 4 1 Operation of Phase Detector _ 4 2 Model 4328A Oscillator Talking Schematic 4 5 Model 4328A Phase Sensitive Amphher Talking Schematic 4 7 Model 4328A Power Supply Talking Schematic _ 4 9 Model 4328A Ni Cd Power Supply Talking Schematic 4 11 Transistor Biasing CharacteristLcs 5 4 0 ...

Page 12: ...y range when proper range setting used and a maximum voltage of 20mV if incorrect range settings are used 1 5 The 4328A can be used to measure heat sensitive __ AIHIGE I l u samples because the power dissipatwn in samples is very low Voltage applied to samples is automahcally llm1ted to permit safe measurement of fuses and ex plosives 1 6 A unique phase dLscriminator in the meter cir cuit_ insures...

Page 13: ...tion 0 02 on 0 1 scale 0 05 on 0 3 scale Accuracy 2 of full scale Accuracy is un affected by series reactance of samples with magnitude of up to 2 times full scale resistance value Measuring Frequency 1000Hz 100Hz Voltage across sample 200J N peak at full scale Maximum voltage across sample 20mV peak in any case Measuring current and power dissipation in sample Range Applied Ma ximum Dissipation o...

Page 14: ...bmodular unit equipped with plastic feet and tilt stand for bench operation as sb1pped from the factory However when used in combination with other submodular units 1t can be bench and or rack mounted The HP combinmg case and adapter frame are designed for this purpose and are available through your Hewlett Packard Sales and Service office 2 10 COMBINING CASE HP Models 1051A or 1052A 2 11 The comb...

Page 15: ...full discharged bat tery mto the BAT CHARGED range and takes approx Imately 48 hours to fully charge CAUTION The four Nickel Cadmium batteries in the Option 001 are m hermetically sealed con tainers Under high temperatures above 50 C hydrogen m the hermetically sealed battery container can build up to high pressure causing damage to the bat teries and or the mstrument The user must be cognizant of...

Page 16: ... of the ON 1 0FF FAST CHARGE switch 4 RANGE Low resistance measurement range selector seLect ranges from lm J fuLt scale to 1000 fuLl scale 10 BATT TESr 3 2 LINE OFF fAST CHAitti E Model 4328A 5 PROBE Cord for measurement divides into 2 probes at moduLar connector 8_ CAUTION Superimposed DC voltage limits are as folLows 1 Between High and Low terminals 150Vdc maximum 2 Between Low terminal and GND...

Page 17: ...e 115 or 230V ac 50 60Hz Section III Figure 3 2 4 RECORDER OUTPUT 0 1V de output is ob tamed at full scale meter deflection directly proportional to meter deflection Output impedance is approximately 10000 5 Cabinet Ground The recorder output is nor mally floating and Cabinet Ground termmal is tied to earth ground When recorder output 1s connected to the input of the recorder and when the recorder...

Page 18: ...001 The 43 8A operate on Its mternal bat tery when the power cable is not connected to ac Ime and the LINE switch IS ON The 4328A operates and charges the battery when the power cable IS connected to ac me and the LINE switch is ON The 4328A charges the battery and does not operate when the LINE switch ism the FAST CHARGE position 4 In Option 001 Press the BATT TEST button When the pomter of the m...

Page 19: ...within limits respond to the series reactance of a sample The meter mdtcates only the correct value of the pure resistance of the sample as long as the series reactance of the sample at 1kHz is less than twice full scale resistance value 3 26 DC BIAS SUPERIMPOSED 3 27 DC bias may be present on samples due to Section III Paragraphs 3 20 to 3 34 some source Model4328A measures with ac 1kHz but its p...

Page 20: ...ange itis notalways possibleto measure the sample because of extreme deflection of the meter See Figure 3 7 3 6 jo _ __ L _ _ _ _ j Model 4328A Figure 3 7 16006A Pin type Probes 3 41 16007A B Test Leads 3 42 These are provided for standard 4 terminal measurements Each pair of testlead has a separate alligator clip voltage and current terminaL 16007A is furnished with a red cover the 16007B with a ...

Page 21: ...how the resistance of Rx 2Re Thus an error of 2Re Rx results in this instance If Rx is much larger than Re Rx Re 1000 the error wtll be withm specifications 2 even if measuring resist ance wtth the method shown in Figure 3 9b 3 49 CHANGING TEST LEAD LENGTH 3 50 The values in Table 3 2 are given for wire lengths from the tip of test lead plug to the other end of lead wire and are maxtma for a singl...

Page 22: ...e any error The effect of the resistance of voltage terminals rv is re moved by making the internal resistance of the volt meter MV sufficiently greater than rv Resistance rt of the current terminals can also be ignored as it is normally sufficiently less than the internal resist ance R of constant current source In Model 4328A the internal impedance as seen from voltage terminals is set at 5k0 or...

Page 23: ...mparing the 1kHz output level to a reference diode When a given level is exceeded the 1kHz signal is amplified and rectified and the resultant de level is used to reduce the oscillator gain 4 14 PHASE SENSITIVE VOLTMETER 4 15 When the current terminals and the voltage terminals are connected to the sample Rx It is as sumed that the range setting of 4328A at this time is correct the voltage drop at...

Page 24: ...same rate The relation vR v R remams constant Stable operation is obtained as the entire eire mt of this voltmeter section is incorporated within the negative feedback loop 4 18 The output VR of the DC amphfler 1s also ap plied to the Meter and Recorder termtnals VR and v R are related linearly The response of the Record er output requires 0 6 second to reach 90 of the final reading Recorder outpu...

Page 25: ...Model 4328A i r tLIPPER F1gure 4 4 ModEl 4328A Osnllator Tctlking Schematic Section IV Figure 4 4 _ Ill lrJJ _ _ nn liDliiUIJIJIIIrDII 1 4 5 ...

Page 26: ... SEE INSIDE Figure 4 4 MODEL 4328A OSCILLATOR TALKING SCHEMATIC 4 5 ...

Page 27: ...t r co h I I I I _ 1 h 111 Ttlf r o lit R2Jl I 11 e piiiiEt commvn q rEIErlhln CR1n11 ill f mpnalurr con1 n 41ar tallbrJ Inr llm arlly adru l R ll9 IE lh m 1H lull niL a dru l CfHO l pton_ llon lor Ql lll Q201 oulplll J a oupiEd lo Q204 high rorreetll lor IhE r omblnEd non llnnrll ul modulalor and ITWII r 1 lrcull A i ll J c _ Jt l 7a ii I U a lt Q p c l ro 1 mr ilu ppu Ea u R107 ldJLCilTIEnl lxl ...

Page 28: ...S E INSI DE Figur e 4 5 MODEL 4328A PHASE SENSmVE AMPLIFIER TALKING SCHEMATIC 4 7 ...

Page 29: ...lea o 10 Ill la u l Ihe ulher belllj In Uw relurn le3d CJOJ lteep ripple low f I I _ _ _ I I CRJJO prutldt i a r Eiarem e allage lor IhE J l 1 JO A I T L r ftur 1 I L FI c R JO p ll oo b I R J IU l_ T 4 ll fj 11 1 l L 7 r L__ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ o 0 if _q I Tf1tQI IAM L I _________ L_______J__ cJ_ _j i 1_111 allll LI I F1gure 4 6 Model 4328A Power Supply Tallung Schemat1c 4 9 ...

Page 30: ...SEE INSIDE Figure 4 6 MODEL 4328A POWER SUPPLY TALKING SCHEMATIC 4 9 ...

Page 31: ...Model 4328A Brljge rlrc Jit CR48l CR402 CR l03 CR4J r d _ l l i T 1 h 10 4 1 J i t rippl luw Q I I Figure 4 7 Modrol 4328A Ki Cd Power Supply Talking Schemalic Section IV Figure 4 7 p i I I I I 4 11 ...

Page 32: ...SE INSIDE Figure 4 7 MODEL 4328A NI Cd POWER SUPPLY TALKING SCHEMATIC 4 11 ...

Page 33: ...rmined that the instrument is actually out of adjustment and not malfunctioning due to a circuit failure 5 8 Several circuit components are factory selected to meet specific c trcuit requirements The factory selected parts are indicated on the schematic dia grams 5 9 TEST EQUIPMENT 5 10 nstruments and accessories required for adjusting and testing the 4328A are listed and briefly described in Tabl...

Page 34: ...est Standard HP Model HP Model Decade 4328A 4328A Resistor Meter Range Settmgs Readings Settings on 0 10 8 12 20 18 22 30 28 32 40 38 42 50 48 52 won 60 58 62 70 68 72 80 78 82 90 88 92 100 98 102 5 2 Model 4328A b Connect the Model 4328A probe to the Decade Resistance Box YEW Type 2792 or GR Model 1432T c Switch the Decade Resistor providing 0 to 100 1 in 10n steps d The Model4328A should read as...

Page 35: ...t screw clockwise until the meter pointer is to the left of zero and moVIng up the scale toward zero Stop when the pointer is ex actly over the zero mark If the pointer Section V Paragraphs 5 23 to 5 35 overshoots repeat step 2 3 When the pointer is exactly on zero rotate the adjustment screw approximately 3 de grees counter clockwise This frees the adjustment screw from the meter suspen sion If t...

Page 36: ...le 5 37 RECORDER OUTPUT ADJUSTMENT a Set the Model 4328A Range Switch to lOOn and connect the probes to 100 2 Standard Resistor Check the full scale readmg of the ModeL 4328A b Adjust A2R233 for the recorder output to be lOOmV de between terminals marked RECOR DER on the rear panel c Repeat Paragraphs 5 35 36 and 37 5 38 REACTANCE COMPONENT OFFSET ADJUSTMENT a Set the Model 4328A range to 1m 2 and...

Page 37: ...n by short circuiting base to emitter while observing collector voltage The transistor should stop conduction cut off which should shift the collector voltage close to the supply voltage Any difference is due to current leakage through the transistor In general the smaller the current the better the transistor If collector volt age does not change the transistor has either an emitter collector sho...

Page 38: ...or forward or reverse resistance check 1ts open circuit voltage and short ctrcuit cur rentoutputON THE RANGE TO BE USED Open circuit voltage must not exceed 1 5 volts and short circuit current must be less than 3ma See Table 5 6 for safe resistance ranges for some common ohm meters Model 4328A Table 5 6 Safe Ohmmeter Range for Transistor Resistance Measurement Open Open Ohm Safe Ckt Ckt meter Rang...

Page 39: ... turn Figure 5 2 0 9mS1 j 1 8mr l Impedance Specification Item Recommended Wattage rating 37 5 Ungar 776 Handle with Tip Temp 750 8oo F Ungar 1237 Heating Unit Tip Size 1 8 OD Shape chisel Ungar PL113 Size 1 8 Suction device to remove Soldapult by the Edsyn molten solder from Company Arleta connection California Must not dissolve etched Freon circuit base board rna Acetone tenal or conductor Lacqu...

Page 40: ...NOTES 1 il I I II 1 1 It I I II II II II I i I II ...

Page 41: ...illator HR hour sl field replacement S B slow blow NSR not separately BE CU c beryllium copper IF Intermediate freq SCR screw BH c binder head IMPG Impregnated replaceable SE sele nium BP c bandpass INCD mcandescent SECT sectlon s BRS c brass INCL lnclude s OBD order by descriptlon SEMICON semiconductor BWO backward wave oscillator INS insulatwn ed OH OV al head S silicon INT internal OX o11ide S ...

Page 42: ...0 0703 1490 0031 5040 0700 5060 0727 5020 6852 5000 8565 5060 8549 5000 8571 04328 1042 04328 10021 Model4328A Table 6 2 Reference Designation Index Descnphon Note CD FRAME ASSEMBLY STAND TIT T HINGE FOOT ASSEMBLY METER TRIM SIDE COVER COVER TOP COVER BOTTOM PANEL REAR PANEL FRONT ...

Page 43: ...02 0049 SEMICON DEVICE DIODE BREAKDOWN 6 19V 400mW 1901 0230 SEMICON DEVICE DIODE SILICON 1S1625 600V 350mA 1901 0230 SEMICON DEVICE DIODE SILICON 1S1625 600V 350mA 1901 0230 SEMICON DEVICE DIODE SILICON 181625 600V 350mA 1901 0230 8EMICON DEVICE DIODE SILICON 181625 600V 350mA 1902 0049 SEMICON DEVICE DIODE BREAKDOWN 6 19V 400mW NOT ASSIGNED 1854 0854 TRANSISTOR NPN SILICON 1854 0003 TRANSISTOR N...

Page 44: ...T 4 7 J F 20 15VDCW 0160 1554 C FXD MY 0 47p F 10 200VDCW 0180 0210 C FXD TANT 3 31J F 20 15VDCW 0180 1029 c FXD TANT 1p F 20 15VDCW 0180 1029 C FXD TANT 1J LF 20 15VDCW 0180 1029 C FXD TANT 1J LF 2000 15VDCW 0180 1029 C FXD TANT 1J LF 2000 15VDCW 0160 0127 C FXD CER lp F 20 25VDCW t I Ill NOT ASSIGNED 1901 0040 SEMICON DEVICE DIODE SILICON 1901 0040 SEMICON DEVICE DIODE SILICON 1901 0040 SEMICON ...

Page 45: ...6845 R FXD COMP 680k0 500 1 4W 0683 7525 R FXD COMP 75000 5 1 4W 0683 1825 R FXD COMP 1800r J 6 1 1 4W 0757 0960 R FXD MET FLM 33kO 200 1 8W 0757 0461 R FXD MET FLM 68 1k0 100 1 8W 0757 0461 R FXD MET FLM 68 lkQ 1 1 1 8W 0757 0960 R FXD MET FLM 33kQ 2 1 i8W 0683 1035 R FXD COMP lOkO 500 1 4W 0757 0465 R FXD MET FLM 100k0 tOO 1 8W 0757 0465 R FXD MET FLM 100k0 1Oj 1 8W 0683 8235 R FXD COMP 82k0 set...

Page 46: ...15VDCW 0160 0134 C FXD MICA 220pF 5 300VDCW 0180 1029 C FXD TANT 111 F 20 15VDCW 0160 1563 C FXD MY 0 47J J F 5 200VDCW 0180 1029 C FXD TANT 111 F 20 15VDCW 0150 0121 C FXD CER 0 11J F 20 8000 50VDCW 0150 0121 C FXD CER 0 1tJ F 20 80 50VDCW 0160 0127 C FXD CER 111 F 20 25VDCW 0180 1029 C FXD TANT 1tJ F 20 15VDCW 0160 1542 C FXD MY 1500pF 10 100VDCW 0160 1542 C FXD MY 1500pF 10 100VDCW 0160 1544 C ...

Page 47: ...01C TRANSISTOR PNP SILICON 1854 0854 TRANSISTOR SILICON 1854 0854 TRANSISTOR SILICON 1854 0854 TRANSISTOR SILICON 1853 0010 TRANSISTOR PNP SILICON 1854 0854 TRANSISTOR SILICON 1854 0854 TRANSISTOR SILICON 1854 0854 TRANSISTOR SILICON 1854 0854 TRANSISTOR SILICON 1854 0854 TRANSISTOR SILICON 1853 0071 TRANSISTOR SILICON 1853 0071 TRANSISTOR SILICON 1854 0854 TRANSISTOR SILICON 1854 0854 TRANSISTOR ...

Page 48: ... 500 1 4W 0683 621S R FXD COMP 620 2 5 0 1 4W 0683 3935 R FXD COMP 39kr 5L b 1 4W 0683 393S R FXD COMP 39kr 500 1 4W 0683 9125 R FXD COMP 9 1kf so 1 4W 0683 1245 R FXD COMP 120kn so 1 4W 0683 154S R FXD COMP 150kf 500 1 4W 0683 102S R FXD COMP 10000 S00 1 4W 0683 473S R FXD COMP 47kf 5 1 14W 0683 4735 R FXD COMP 47k 1 500 1 4W 0683 3625 R FXD COMP 3600 2 S00 1 4W 0683 103S R FXD COMP 10kn 500 1 4W...

Page 49: ...r 0 1 04328 8630 R FXD W W 148 8 2 0 1 04328 8631 R FXD W W 497 1 2 0 1 0698 2125 R FXD MET FLM 1 492kn 0 100 1 4W 0698 1466 R FXD MET FLM 5kn 0 1 1 4W 0698 2126 R FXD MET FLM 14 11kS2 0 1 1 4W 0698 2042 R FXD MET FLM 51 1k J 0 1 1i4W 04328 8621 R FXD W W 560mS2 1 04328 8622 R FXD W W 390mS2 1 04328 8623 R FXDW W 350mf l 100 04328 8624 R FXDW W 340mf l 100 04328 8625 R FXD W W 330mS2 1 0698 3444 R...

Page 50: ... HR HG SLDR TAB 1420 0274 BATTERY 6V 225A HR HG SLDR TAB 1420 0274 BATTERY 6V 225A HR HG SLDR TAB 1420 0274 BATTERY 6V 225A HR HG SLDR TAB NOT ASSIGNED I 0180 0965 C FXD ALUM 220JlF 25VDCW I I 0180 0965 C FXD ALUM 220JlF 25VDCW NOT ASSIGNED 1901 0230 SEMICON DEVICE DlODE SILICON 181625 600V 350mA 1901 0230 SEMICON DEVICE DlODE SILICON 181625 600V 350mA 1901 0230 SEMICON DEVICE DlODE SILICON 1S1625...

Page 51: ...0VDCW NOT ASS lGNED 0160 1562 C FXD MET PAPER 40 1 F 10 150VDCW 1450 0566 LAMP INDICATOR 2110 0110 FUSE CARTRIDGE 0 IA SLOW BLOW 1251 2357 CONNECTOR PO ER 3 PIN MALE 04260 5028 CONNECTOR FOR RECORDER 04260 5028 CONNECTOR FOR GROUND CONNECTOR PROBE NOT SEPARATELY REPLACEABLE PART OF W2 PROBE CABLE ASS Y 1250 0318 CONNECTOR FOR PROBE 1120 0751 METER 0757 0476 R FXD MET FLM 30lkr2 I 1 8W 0683 4725 R ...

Page 52: ...WER 1251 0048 ADAPTER THREE PRONG TO TWO PRONG 04328 7203 CABLE ASS Y PROBE 04328 7202 CABLE ASS Y 1251 0135 CONNECTOR PRINTED CKT 5 CONTACTS 1400 0084 HOLDER FUSE 16143A PROBE CABLE PROBE ASSEMBLIES 16005A PROBE CLIP TYPE TWO FURNISHED 16006A PROBE PIN TYPE TWO FURNISHED 16007A TEST LEAD ALLIGATOR CLIP RED 16007B TEST LEAD ALLIGATOR CLIP BLACK MISCELLANEOUS 0370 0254 KNOB SKIRTED BAR 03 4 BLK See...

Page 53: ...hanges 7 8 EAR LlER INSTRUMENTS Backdating Changes lf the serial prefb or number of your Model 4328A is 1828J057l0 and below refer to Table 7 1 for the changes necessary to adapt this manual to your particular instrument Locate the serial prefLx or number of your instrument in the table and make the indicated changes Note that instrument component values that differ from those in this manual yet a...

Page 54: ...21Z CR2 c 20 Ff224 Figure 7 1 Partial Schematic of A2 Ass y CHANGE 2 Page 6 6 Table 6 2 Change A3 Board Ass y HP Part No 04328 7034 to 04328 7023 Service Note Board Ass y 04328 7023 is interchangeable with Board Ass y 04328 7043 Page 6 7 Table 6 2 Delete A3CR32 1 Page 6 8 Table 6 2 Change A3R342 to HP Part No 0683 3325 R FXD COMP 3 3kr l 5 1 4W Change A3R344 to HP Part No 0683 4325 R FXD COMP 4 3k...

Page 55: ... V4W Change A3R310 to HP Part No 0683 1535 R FXD COMP 15kS1 5 1 4W Change A3R311 to HP Part No 0683 5125 R FXD COMP 5 lks 2 500 t 4W Change A3R313 to HP Part No 0683 6835 RFXD COMP 68kS 2 500 1 4W Change A3R314 to HP Part No 0683 1235 R FXD COMP 12kS 2 500 1 4W Page 6 8 Table 6 2 Change A3R323 to HP Part No 0683 3325 R FXD COMP 3 3kS1 500 1 4W Page 8 17 Figure 8 14 _ Change A3R303 to 390kS 2 A3R30...

Page 56: ...igure 8 18 Change A2C207 to 47pF CHANGE10 Page 6 2 Table 6 2 Change HP Part No of METER TRIM to 5020 0704 Change HP Part No of SIDE COVER to 5000 0703 Change HP Part No of COVER TOP to 5070 0706 Change HP Part No of COVER BOTTOM to 5000 0711 Change HP Part No of PANEL REAR to 04328 1022 Change HP Part No of PANEL FRONT to 04328 1021 Page 6 11 Table 6 2 Add A7 04328 7035 POWER SWITCH ASS Y Add A7R1...

Page 57: ...CABLE CHANGE 12 Page 6 9 Table 6 2 Add A4S101 3100 1134 SWITCH RANGE ROTALY Delete A4S101 3100 1173 SWITCH RANGE ROTALY Add A4R102 04328 8607 R FXDW W 1 5 2 0 1 Add A4R103 04328 8608 R FXD W W 5 1 0 100 Add A4R104 04328 8609 R FXD W W 15 2 0 100 Add A4R105 04328 8610 R FXD W W 50n 0 1 Add A4R106 04328 8611 R FXD W W 150 2 0 1 Add A4Rl07 04328 8612 R FXD W W 500 2 0 1 Add A4R108 0698 1465 R FXDMET ...

Page 58: ...R229 2100 1948 R VAR W W 50k l LIN 500 1W Delete A2R232 2100 1777 R VAR W W 20k l LIN 5 1W Delete A2R234 0757 0283 R FXD MET FLM 2kR 1 1 8W Delete A2R230 0757 0959 R FXD MET FLM 30k l 2 1 8W CHANGE 14 Page 6 4 Table 6 2 Delete A2C218 0160 0127 C FXD CER 11lF 20 25VDCW Page 4 7 Figure 4 5 Delete A2C218 Page 8 19 Figure 8 17 Delete A2C218 Page 6 7 Table 6 2 Change A3CR322 to HP Part No 1902 3110 DIO...

Page 59: ...lOkr 10 1 12W Change A2R233 to HP Part No 2100 0567 R VAR 2kn 10 1 2W CHANGEL9 Page 6 4 Table 6 2 Change A2Q209 to HP Part No 1854 0071 Page 6 7 Table 6 2 Change A3Q301 and A3Q308 to HP Part No 1854 0071 CHANGE 20 Page 6 5 Table 6 2 Add A2R225 0683 2035 R FXD 20kn 5 1 4W Add A2R228 2100 3253 R VAR 50kr 10 1 2W Add A2R229 2100 3253 R VAR 50kQ 10 1 2W Add A2R230 0757 0453 R FXD 30 1k1 1 1 1 8W Add A...

Page 60: ...NOTES ...

Page 61: ...ontains references that dtrect the user to the detailed troubleshooting charts Table 8 2 through 8 10 The detailed charts refer the user to transistor stages n a few instances specific parts are called out as being possible causes of circuit mal function however the troubleshooting charts are not intended to locate specific parts that have failed They are intended to locate only malfunctioning sta...

Page 62: ...AND GATE INHIBIT GATE OR GATE WA liEFORMS SHOWN ARE T iPICAL B R 2 1 2 REFERENCE DESIGNATIONS 2tm WAFER FROM FROtH IA 1ST ETC REAR OF WAFER iF FRONT TERMI JAL LOCATIOn l2j VIEWED FROM FRONT REFEREtKE DESIGNATIONS WITHitj ASSEMBLIES ARE ABBREVIATED ADD ASSEMBLY NUMBER TO ABBREIIIATIIJtJ FOR COMPLETE DESCRIPTION A 35EMBL ABBREVIATIOtJ COMPLETE DESCFIIPTIOt A25 Cl A25C1 A25A1 CRl A25A1CRI no PREFI J3...

Page 63: ...bes and adjust the length to get full scale deflection 4 Measurement made with respect to CIRCUIT COMMON Waveform Test Point Locations Test Pgint Location A3TPl A3Q303 EMITTER A3TP2 A3Q307 BASE A3TP3 A3Q316 BASE A3TP4 A3 BLU A3TP5 A3 9 K A3TP6 A3Q312 BASE A2TP7 A2Q201 BASE A2TP8 A2Q202 BASE A2TP9 A2Q204 BASE A2TP10 A2Q205 COLLECTOR A2TP11 A2 CR202 CR203 junction A2TP12 A2 2 B A2TP13 A2 3 C A2TP14 ...

Page 64: ...ER 0301 0303 0 DETECTOR Q307 Q308 CR309 CR310 SCHMITT TRIGGER 0309 0311 GAIN CONTROLLER CR303 CR307 20mV PEAK LIMITTER Q312 Q315 POWER AMPLIFIER Q304 Q306 OSC POSITIVE FEEDBACK SIGNAL C301 CLIPPER Q316 Q317 FLIP FLOP Q318 Q319 C307 II BRN BL I 7 14 R 15 5 1 F I L ...

Page 65: ... l PRANG SWITCH ASS Y RMO T202 I 0432 7024 I BRN __ j I r 11 I r I I 8 I 0 BLI 5101 I I I I I RIOI l M louLATOR RI02 Rll2 I v I 3 0209 RI03 Rll3 v I I mn i G RI04 Rll4 ru I 91 3 c RICI5 Rll5 I I RI06 Rll6 300 I RI07 i ij I I I RIOB I I I RI09 n I I RIIO I I I Rill 100 _j I Lo I 7 I KHz LEVEL COMPENSATION SIGNAL 14 R I 1 3 51 1KHz PHASE REFERENCE SIGNAL OVER RANGE SIGNAL OT J ORAJDACI TT3JW ...

Page 66: ...AC 0 A PLIFIER 0 01 0205 L L 14H Po u l T202 I I I ____ IT __ j 11 8 I JDULATOR I PHASE DETECTOR CR202 CR203 I I DC AMPLIFIER 10 1 0206 0208 I I I I I 0209 _j I _ 9hli K 3 1 1 2 _ _8 1 Lo I I Section VIII Figure 8 2 Ml RECORDER oufPUT Figure 8 2 Overall Block Diagram 8 3 ...

Page 67: ... Q c ir a Q n L Q Q IQ I l I IQ Q Q Q Q 2 2 I 21 21 2Q SEE INSIDE Figure 8 2 OVERALL BLOCK DIAGRAM 8 3 ...

Page 68: ... 50mV cm lms cm 0 5V cm lms cm lOmV cm lms cm 500tN cm 1ms cm 500tN cm lms cm 8 4 0 0 0 0 lOmV cm lms cm 2V cm Lms cm 2V cm 5V cm 0 5ms cm 5V cm 100J1V cm lms cm 500 lV cm lms cm Figure 8 3 Model 4328A Waveforms Model 4328A 0 ...

Page 69: ... I t Model 4328A 0 TABLE 8 1 4328A OVERALL TROUBLESHO CHECK CAL BRATlON USE YEW TYPE 2782 AND YEW TYPE 2786 OR GR MODEL 1432T oK METI CALL I NOD MET I oo E1 PROE ...

Page 70: ...CALIBRATE 1 OK CHECK WAVEFORMS 1 METER DEFLECTS _ RECALIBRATE CALIBRATION BAD CHECK FUSE BATTERY 1 NO DEFLECTION POWER SUPPLY t 13V 13V NOMINALLY A3T P 4 5 A30 0 CHECK BAD POWER SUPPLY TABLE 8 9 OR 8 10 OK CHI A2 A2 OK CHECKWAVEFORMS_L OK A3 T P 4 5 BAD METER GOES TO CHECK FOR ____ EVEN IF OPEN PROBES PROBES SHORTED AND T302 A30 0 REPAIR OR BAD REPLACE PROBE AND T302 CHECK WAVEFORMS OK A3 T P 4 5 ...

Page 71: ...OWER BAD SUPPLY TABLE 8 9 OR 8 10 CHECK WAVEFORM A2 T P 8 BAD A2 0 AND MODULATOR TABLE 8 8 CHECK WAVEFORMS OK A2 T P 12 13 A2 CD 8 CHECK WAVEFORM OK A2 T P 14 A2 4D CHECK FLIP FLOP BAD TABLE 8 4 AND PHASE DETECTOR AN DC AMPLIFIEF TABLE 8 7 NOTES TEST INSTRUMENTS REQUIF OSCILLOSCOPE VOLTMETER SEE TABLE 5 1 INSTRUMENT TEST CONDIT SET RANGE SWITCH TO 1rr DC VOLTAGE CHECK PROBES OPEN AND SHORT VOLTAGE...

Page 72: ... RANGE SWITCH TO lmr l VOLTAGE CHECK BES OPEN AND SHORTED LTAGES IN BOTH CHECK Section VIII Table 8 1 RETURN TO OK BEGINNING AND RECHECK BAD REPLACE METER DC AMPLIFIER BAD AND MODULATOR TABLE 8 7 AND 8 8 IDITIONS SHOWN IN SCHEMATICS OBSERVE WAVEFORMS rNECT A PIECE OF COPPER WIRE G 12 18 ACROSS PROBES ADJUST THE LENGTH TO FULL SCALE DEFLECTION Table 8 1 Overall Troubleshooting 8 5 ...

Page 73: ... SEE INSIDE Table 8 1 OVERALL TROUBLESHOOTING 8 5 Sect Figu 8 6 ...

Page 74: ...and 8 6 AI ASS Y T302 T301 J 1 t lJI li 1 c I J I t t 1 I r A3 ASS Y R306 R360 OSC LEVEL ADJ OSC BIAS ADJ Figure 8 5 Model 4328A Left Internal View C201 C308 Figure 8 6 Model 4328A Bottom Internal View 8 6 Model 4328A J3 Jl J5 ...

Page 75: ...CHECK CHECK W2 04328 707 l PROBE CABLE ASS Y CHECK R360 AND CR302 FOR OPEN CHECK WAVEFORM REPAIR OR BAD REPLACE CHECK C322 CHECK C302 FOR OPEN OK C304 FOR OK BY BRIDGING OPEN SUBSTITUTES REPLACE BAD FAULTY COMPONENT REMOVE CR322 CR323 BAD CHECK AND REPLACE REPLACE BAD FAULTY COMPONEN1 A3T P 5 1 OK A30 CHECK T301 T302 T201 OK CHECK VOLTAGE AT Q306 COLLECTOR BAD ...

Page 76: ...L OF OK Q30l Q302 Q303 Q304 CHECK AND BAD REPLACE FAULTY COMPONENTS CHECK ALL SOLDER OK CONNECTIONS ON OSCILLATOR CIRCUIT FIND AND REPLACE BAD FAULTY COMPONENTS CHECK C301 C322 FOR OK OPEN BY BRIDGING SUBSTITUTES FIND AND FIX BAD POOR CONTACTS TABLE 8 3 SCHMITT TRIGGER P CHECK WAVEFORM A3 T P 2 A3 0 SAME AS A3 T P 1 ...

Page 77: ...AND Q308 INPUT OK VIA C310 CR309 CR310 I CHECK 308 ANDQ3 9 1 OK OUTPU S DC LEVELl I I TRAC FAULTY BAD COMP NENT AND R PLACE I I CHECK Q310 OK ANDQ311 FIND AND BAD REPLACE FAULTY COMPONENTS NOTE OK CHECK CR311 REPLACE BAD FAULTY COMPONEN DURING NORMAL OPERATION SCHMITT Til MAY BE CHECKED BY OPENING MOMENTA LEADS AND MONITORING THE OUTPUT AT Table 8 2 8 3 ...

Page 78: ... CHECK CR311 REPLACE BAD FAULTY COMPONENTS Section VIII Table 8 2 8 3 AL OPERATION SCHMITT TRIGGER ACTION KED BY OPENING MOMENTARILY THE PROBE ONITORING THE OUTPUT AT A3 13 P Table 8 2 8 3 Troubleshooting 8 7 ...

Page 79: ...L TABLE OSCILL NO OSCI METER EVE SHORTE C F KE INSIO Table 8 2 8 3 TROUBLESHOOTING 8 7 ...

Page 80: ...Section VIIT Figure 8 7 8 8 J2 J3 Model 4328A Tl Sl CP I SELECTOR Fl Jl Figure 8 7 Model 4328A Rear Internal View ...

Page 81: ...WAVEFORM A3 T P 3 CHECK VOLTAGE OK AT Q317 BASE AND COLLECTOR CHECK FOR BAD OPEN C318 OR OPEN BOARD CONNECTION BAD_CHECK AND Rl FAULTY COMI CHECK VOLTA OK AT Q318 BASE AND COLLECT RETURN TO OK BEGINNING AND RECHECK REPLACE FAULTY COMPONENT BAD AND REPAIR DEFECTIVE BOARD ...

Page 82: ...CTOR cK T CHECK AND BAD REPLACE FAULTY COMPONENT CHECK VOLTAGE OK AT Q319 BASE AND COLLECTOR OK CHECK CR317 CR319 CR320 CHECK AND REPLACE BAD FAULTY COMPONENT TABLE 8 5 LIMITTER PI O A3 TRO CHECK WAVEFORM AND DC LEVEL A3 T P 6 ...

Page 83: ...NENTS I i CHECK Q316 OK CR314 CR315 i RETURN TO OK BEGINNING AND RECHECK REPLACE BAD FAULTY COMPONENTS CHECK VOLTAGES OK AT Q314 Q315 COLLECTOR REPLACE BAD FAULTY COMPONENTS Tat CHECK R346 F OK AND PC BOARI CONNECTION 1 CR303 CR307 BAD CHECK POWER CR313 CR321 Table 8 4 8 5 Troub ...

Page 84: ...ES Section VITI Table 8 4 8 5 CHECK R346 R347 AND PC BOARD OK CONNECTION TO CR303 CR307 BAD_ CHECK POWER SUPPLIES CR313 CR321 Table 8 4 8 5 Troubleshooting 8 9 ...

Page 85: ...Sf INSIDE Table 8 4 8 5 TROUBLESHOOTING 8 9 ...

Page 86: ... f t I r I t T201 A5ASS Y R233 A2 ASS Y REC OUTPUT ADJ AI ASS Y R232 LIN ADJ u r _ R228 ZERO ADJ C208 lmn PHASE ADJ Figure 8 8 Model 4328A Right Internal View T303 XAI Figure 8 9 Model 4328A Top lnternal View l q 11 tf if if I Model 4328A ...

Page 87: ...CHECK CONNECTOR BAD A3 9 K C308 T303 C201 T201 C202 CHECK WAVEFORM A2T P 10 OK A28 AND DC LEVEL OF Q205 REPLACE BAD FAULTY COMPONENTS PHASE DETECTOR AND DC AMPLIFIER P 0 A2 TROUBLESHOOTING CHECK WAVEFORM A2 T P 10 BAD RETURN TO TABLE 8 6 CHECK WAVEFORM OK A2 T P 11 A2 CHECK WAVEFORMS OK A2T P 12 13 A2 8 CHECK C210 BAD AND CONNECTION ...

Page 88: ...CK BAD FLIP FLOP TABLE 8 4 MODULATOR OK FUNCTIONS PROPERLY CHECK FIND BAD AND FIX BAD CONNECTOR 1 T202 CHECK BAD CR202 CR203 CHECK OK DC LEVELS oF Q201 Q202 Q203 RETURN TO OK BEGrNNING AND RECHECK REPLACE BAD FAULTY COMPONENT CHECK WAVEFOR OK A2 T P 1 A2 REPLACE BAD FAULTY COMPONE ...

Page 89: ... T P 12 13 OK A2 e 8 BAD CHECK FAULTY COMPONENTS I CHECK QK _ Q206A B 1 1 Q208 DC i LEVELS I I CHECK 1 CONNECTOR FIND AND AD REPLACE FAULTY i COMPONENT CHECK AND REPLACE BAD FAULTY COMPONENT CHECK Q209 DC LEVELS CHECK OK WAVEFORM A2 T P 15 A2 G T BAI OK Tables 8 6 through 8 ...

Page 90: ...ND lEPLACE AULTY OMPONENT HECK Q209 C LEVELS HECK VAVEFORM 2 T P 15 Section VIll Tables 8 6 through 8 8 CHECK AND BAD _REPLACE FAULTY COMPONENTS OK CHECK METER ANDS2 Tables 8 6 through 8 8 Troubleshooting 8 11 ...

Page 91: ...TABLE AC AM CHECK A2 T P A28 TABLE PHASE CHECK A2 T P A28 SEE IMSIOE Table 8 6 through 8 8 TROUBLESHOOTING 8 11 ...

Page 92: ...Section VIll Figure 8 10 8 12 Model 4328A Figure 8 10 Model 4328A Power Supply PC Board ...

Page 93: ...ROSS C301 12V TO 14V CHECK REGULATION CR305 BAD R302 MEASURE VOLTAGE AT Q302 COLLECTOR 14V MEASURE VOLTAGE ACROSS CR305 CHECK FUSE TRANSFORMER C301 CR301 OV CR304 CHECK OK Q301 Q302 Q303 REPLACE BAD FAULTY COMPONEN IF READING IS SAME CHECK AND REPLACE FAULTY Q302 IF SLIGHTLY DIFFEREN I BUT HIGH CHECK CR305 R302 R303 R304 ...

Page 94: ...T _ FlND AND FIX REMOVE SUPPLY REPLACE CR305 1 WORK CR305 PUT CR305 SUPPLY BACK lN DON T CIRCUIT OK MEASURE VOLTAGE AT Q301 EMITTER CHE BAD REP Q301 WORK MEASURE VOLTAGE AT Q303 COLLECTOR MEASI OK AT Q3 CHECK AND BAD REPLACE R301 Q303 NOTE SAME FORMAT AS DESCRIBED ABOVE CAN BE USED FOR TROUBLESHOOI ING THE 13V POWER SUPPLY ...

Page 95: ...K CHECK Q302 CHECK FOR OPEN CIRCUIT TO Q301 BAD COLLECTOR AND BRIDGE RECTlFIER AT Q301 EMITTER CHECK AND BAD REPLACE Q303 BAD _FIND AND FIX OK _MEASURE VOLTAGE AT Q302 EMITTER CHECK Q302 OK OPEN EMITT TOCOLLEC1 BAD CHECK ANI REPLACE c POWER SUPP OK FUNCTIONS PROPERLY CHECK FOR OPEN ClRCl BAD TOQ302 EMITTER Al CONNECTOI Table 8 9 Pov ...

Page 96: ...EMITTER TO COLLECTOR CHECK AND BAD REPLACE Q301 POWER SUPPLY OK FUNCTIONS PROPERLY CHECK FOR OPEN CIRCUIT BAD TOQ302 EMITTER AND CONNECTOR 12 Section VITI Table 8 9 FIND AND FIX Table 8 9 Power Supply Troubleshooting 8 13 ...

Page 97: ... SEE INSIDE Table 8 9 POWER SUPPLY TROUBLESHOOTING 8 13 ...

Page 98: ...Section VIII Figure 8 11 8 14 Figure 8 11 Model 4328A Model 4328A Ni Cd Power Supply PC Board ...

Page 99: ...Model 4328A ...

Page 100: ...Ni Cd POWER SUPPLY TROUBLESHOOTING MEASURE 13V SUPPLY METER PEGS MOTHER BOARD WHT RED WHT POWER SUPPLY CHECK BATTERY OK FUNCTIONS PROPERLY OK BAD METER INDICATES BATTERY _CONNECT 4328A TO_ DISCHARGED AC LINE POWER ...

Page 101: ...S OK THEN PISCONNECT 4328A Fi ROM LINE POWER CHEC FUSE TRAN FORMER BAD A6C40 A6C402 A6CR 01 CR404 A6CR 07 CR410 I POWER SUPPLY OK FUNCTlONS PROPERLY BATTERY CHECK AND BAD WON T REPLACE CHARGE BATTERY FlND BAD AND FlX MEASURE VOLTAGE OK ACROSS A6CR405 AND A6CR411 CHECK AND OK REPLACE BATTERY Section VITI Table 8 10 CHECK REPLACE BAD A6R401 FAULTY A6R402 COMPONENTS Table 8 10 Nt Cd Power Supply Trou...

Page 102: ...Sf E INSIDe Table 8 10 NI Cd POWER SUPPLY TROUBLESHOOTING 8 15 ...

Page 103: ...317 CR307 C305 R316 cR306 R 312 CR 505 R 314 Qao4 3p4 CR303 0303 C304 R315 R313 C322 R305 R302 Q302 R301 Rasa Q30 R308 R304 CR30 2 CR301 C302 R303 C301 Figure B 12 Oscillator Assembly A3 Component Locations RI02 RIO I RIOB RI09 Rll5 Figure 8 13 Range Switch Assembly A4 Component Locations 4328A ...

Page 104: ..._ R __ A_s_s_ _v__ to_q __ 3_2_e_ _r __ o_3_4_J___________________________ OSC BIAS AOJ H3V A R31ll 7K Hl iH INPUT IMPEDANCE AMPLIFIER t 13V A 2 4V CR303 CR304 CR JOS I W G 9 7 H P OXA31 CR306 CR307 SCHMITT TRIGG R L___ t 13V ...

Page 105: ...ER CLIPPER Fl348 681 R350 ZOK R351 201 109V II IV II 7Y R354 33k R353 681 4 ZV C320 0001 BLIJ BRN 1 cBLI OETECTOR INP 13V B L___ L____ FLIP FLOP C321 00015 7BV Jlo 7 2v R357 101 R358 3901 l__jREO BRr _k II N C 41 Eo R333 911 CR312 C311 I 1 R33 1501 R334 1201 15 5 r 1 LTo A2 Z BJ FLIP FLOP SIGNAL TO A2 3 CJ TO PHASE DETECTOR ...

Page 106: ...2 15 2 Rl13 039 3 Rll4 035 Rll 5 034 15 Rll6 033 50 161 ILl L_ R122 t B l l _ _ R I 0 9 _1t V 151 10 i L_L _ __ i 1 _ _ k _ _ _ _ _ _ L_ REFERENCE DE NO PREFIX C20J C308 J4 W2 13V I I i FROM SIA 13V A 4 5 E r 13V A3 13VI8 12 N I I r 4e l l 1 CI RCUIT COMMON rfr rl7 TO A2 6 F 7 HI I II 6 F 1 i NO CONTACT 13V 71o L il 13V 1 FROM SIB PfOXA3 CR314 CR315 __j COPlRIGHT 1970 Bi YOtfOGAWA HEWLETT PACI t A...

Page 107: ...ASS t PREFI C201 C308 qo1 c322 J4 CR301 CR323 W2 0301 0319 lfA3 R301 R360 T30I T302 DELETED A3C308 NOTE A4 Ass AS RIOI R122 T303 5101 ASS t VOLTAGES OBTAINED UNDER CONDITIONS OF SHORfED AND OPEN PROBES WITH RESPECT TO COMMON mI RANGE SET AT lmn __j ro LTD BLACI READING FOR SHORTED RED READING FOR OPEN Figure 8 14_ Oscillator Ass y A3 Range Switch Ass y A4 Mother Board Ass y A5 8 17 ...

Page 108: ...SEE INSIOE Figure 8 14 OSCILLATOR ASS Y A3 RANGE SWITCH ASS Y A4 MOTHER BOARD ASS Y A5 8 17 ...

Page 109: ... Figure 8 15 8 16 r I I I I 8 18 i 1 tl 1 I Figure 8 15 Phase Sensitive Amplifier Assembly A 2 Component Locations A3 XA2 I l C202 T303 j Figure 8 16 Mother Board Assembly A5 Component Locations Model 4328A 1 _ 1 I ...

Page 110: ... C20J C203 C217 C202 C308 CR201 CR210 T303 J2 J4 Q20Hl209 A2 MIOI R20I R238 T201 T202 wz DELETED A2CR205 A2Q20T NOTE IIOLTAGES OIITAINED UNDER CONPrTIONS Of SHORTED AND OPEN PROBES WITH RESPECT TO COMMONln71 RANGE SET AT lmll BLACI READING FOR SHORTED RED READING FOR OPEN ...

Page 111: ...lOOp 12 5V 12 5 R212 6801 R210 510 13V C20B 45P t C209 47 R21 751 H214 IBK t 41 t rl R R206 0 015 P OJtA2 R202 1001 CR201 R208 lOOK 75K 13V r _____________ R201 C203 L T I I r o C J30 L J OSCILLATOR OUTPUT FROM A3t9 K j LIMITfER INPUT TO A3 11 M C204 0 22 0 14 p 4 0 P OXAZ SCHMirT TRIGG OUTPUf FROM ORN lEL A3 13 Pl ___ _ 1 ORN tEL T202 RED l RED ElMOTHER BOARD AS 43 8 70 1______ ...

Page 112: ...J 90V C _2 02 c oJ G 6 5 llzza 09V 201 C216 207 F1215 R219 R218 I 331 IOK 3 1 Jl R2 1 R220 R221 1001 lOOK 4 31 This line Is coMected to the drcult common t tmllnA3 C215 I 13V 47 l cz11 1 1 g l 4D 35V 4 ov 75 lorQI I 01 11Df7 5V _____ 11 4 0 2 18 3 C f 2 f SCHMITT TRIGGER FLIP FLOP SIGNAL FLIP FLOP SIGNAL 1 OUTPUT FROM FROM A31 15 5 I FROM A3114 RI A3 13 Pl _j C214 I 11235 9091 R237 2 71 R209 09V C...

Page 113: ...7 WHTi Section VITI Figure 8 17 RED GRA I3 V FROMAI l o 6 w H T t v o F Aifl51 EL 4 RN 13 7 Hl 3IB Jl l I I I J HEWLETf PACKAO LTP e 8 17 _Phase Sensitive Amplifier Ass y A2 Mother Board Ass y A5 8 19 ...

Page 114: ... SEE INSIDE Figure 8 17 PHASE SENSITIVE AMPLIFIER ASS Y A2 MOTHER BOARD ASS Y A5 8 19 ...

Page 115: ...Section VIII Figure 8 18 8 20 i l l t l3 2 3 Q303 Q306 Q304 0305 V j l I I I I Figure 8 18 Power Supply Assembly Al Component Locations Model 4328A ...

Page 116: ...Model 4328A ...

Page 117: ...0 60Hz LINE INPUT VOLTAGES SHOWN AFIE REFE EO TO COMMONCrhl PowE Fi suPPLY Ass r o43o4 7043 1 A J _W H T _ GR A _ ___B L _ R_ E _D______ 0 T v ID _ 6 1 115V 230V GRA R3 4i t L___ ______ p PIO AI __y __________J WHr RED ORN 2 100 1 4 BLI r EL 6 115V VIO CR304 I J m3o3 cR302 7 J 22 1 I J301 470 25Vl 8 1 CR309 CR l06 A g v _______ C303 470 25V L ...

Page 118: ... Gr o I I I I I I I I I I I I I I I I I I I I I I I i I r I I _j 1 I I I I I I I I I I I I I 1 I 1 I I I I I L _ _ r ll i WHTIVIO o 0 I I o I I i r _j r ____I l C u 2 1 __ ___ _ R I 7 I cf l 3 30 I I I I I _L___ 6 I I 1 1 Y E L 4 WHTIRED WHT OFIN Ml GRN COP Figu ...

Page 119: ...15 E 12 N I 13 1 _ cW HJ f W H T TO A2 t AI6 A3 to U I I W HT O R N lWHT ORN IMET METER OUTPUT FROM A21 Jl I G R N 1 MET METER OUTPUT FROM A2 ltO L i C___ _ _ ___j b GRN COPlRIGHT 1970 8 f tO OGAWA HEWLE rT PACkARD LTD F1gure 8 19 Power Supply Ass 1 y Al Mother Board Ass y A5 8 21 ...

Page 120: ...SEE INSIDE Figure 8 19 POWER SUPPLY ASS Y AI MOTHER BOARD ASS Y A5 8 21 ...

Page 121: ...Section VIII Figure 8 20 8 22 11 1 t BT401 I I I BT402 t i 401 f j BT404 I J _I r C 402 r BT403 Figure 8 20 Ni Cd Power Supply Assembly A6 Component Locations Model 4328A I I ...

Page 122: ...Model 4328A 0 ...

Page 123: ... I WHT GRA 5I q I r 1 L WH rt BRN IGRA 0 PlO AI I BU __ JED 11 5V 23DV 47 GRA I VOLTAGES SHOWN ARE REFEREO TO I j COMMON f hl I I A 1 r I r P OXAI J I I 2 I I 1 I I I R403 33K I I I I I I I I I J I I I I I I I I I I I I I I IL I I I I I I I L_ I I I I I L 4 Y _ 3 __________ y_P 0 AI POWER SUPPLl A 55 y 04328 7026 l 8 CR410 CR407 9rV 11 6 4 N2 2 Il 7 V C R4 1 2 i CR408 C402 220 15 4V CR411 13 5 ...

Page 124: ... I LHU BL lWHTIBLI IMoniER BOARD ASS t 04328 7033 r l I I I _______j C I 1001 WHT REO GT o I I I I I I I 0 15 _ a o I I WHT VIO I i 10 l r I I I 0 wr 1 I ________j WHTlORN WHT ORN MET r 1 I ____ j _61 52 91 9 W HTllLJ fE8L I 2 I D o I e I LINE FASTl ON OFF CHARG o1 3 3 1 7 1 I i R2 I I 471 1 1 TL r l I 6 I 1 I 4 5 TEL I Qs3 1BATT TESTI GF N GRN MET COP YRIGHT 1970 E Figure 8 21 Ni C ...

Page 125: ... H T R E D __ TOA2 5 El 8 A3t 5 E 121 N I I 13V lm I I 07 D R _ N__ METER OUTPUT FROM A21JI I I t I I METER OUTPUT FR J COPYRIGHr 1970 BY Yl kOGAWA HEWLETr PACKARD LTD Figure 8 21 Mother Board Ass y A5 Ni Cd Power Supply Ass1 y A6 8 23 ...

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