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-22 Start Wirh A Diaplsy Reading Of '9" (Test 9 Failure) Measure The Switch Drive Voltage A10U8. On Pin 13 Of Wgure 8-H-7. Inguard TrouMeshooting Procedure Diagram, Auto-Cal Circuitry TEST 9. 8-91 18-92
"8" ((Test 8 Failure), Mea- sure The Switch Drive Voltage On Pm 13 Of Voktage Approx. YES Voltage At Pin 11 Voltege A? AlOTP3 Select Circuir CAIOUIZ, U14. U26 And Associ- ared Components) Troubleshoot The Gate Bias ArnvFrfier Circv~t (AIOU?. Q5 And Associ- ated Cornponenrsl. Troubleshoot The Logic Circuit (AlOUIZ. U22, U26 And Associated Com- ponentsl. Check A10U8 And Associ- ared Components. The Switch Orlve Check Switching FET's Voltage At Pin 14 AlOQ2, 021. 022 And Of A1 OU4 Approx. Of Af OU5 Approx. Associated Components. Of A1 OU4 > 4 V dc The Voltage At AlOTPG A~prox. Troubleshoot The Feed. back Rrnpllfier (A10U3, 09. 011, 025. 026 And Associated Components). Troubleshoot The Logic Circu~t (A'10U13, U22, A10U13>4V U26 And Assoc~ated Corn- voncnts). Troubleshoot The Devlce Select Circuit (A1 0U13. U14, U26 Arrd Associ- ared Components) Check A10U4 And Assaci- ated Camponsnrs. The Gate Bias Voltage At A1 OTP3 Bias Amplifier Circuit (AIOU1. Q5 And Associ- ated Components). Troubleshoot The Logic A10U16 > 4 V U26 And Associated Com- Peak-To-Pea k panentsl. Troubleshoor The Device Select Circuit (A1 OU16, U14, U26 And Associ- 3455 -8-6 Figure 8-H-8. lnguard Troubleshooting Procedure Diagram, Auto-Cal Circuitry TEST 8. 8-93/8-94 Check A10U5 And Assocl- ated Components.
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I OPERATING AND SERVICE MANUAL - DI
Page 3:
MEWLET T PACKARD CERTIFICATION Hewl
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I I SAFETY SYMBOLS Genaral Definiti
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Section I Model 3455A Table 1-1. -i
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Section I Model 3455A Ill.rlmrm hW-
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Section I Model 34556 1-6 Table 1-1
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Section 1 Model 3455A ' Reference D
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Section I1 Model 3455A full-module
Page 22 and 23:
Section III Model 3455A 3-0 HP-la*
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Section I11 Model 34556 4-WIRE MEAS
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Section tlI Model 34556 displayed i
Page 28 and 29:
Section 111 Model 345519 frequency,
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I Section 111 Ball out TibC 3-3. 01
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Section 111 - Address , 3455A Progr
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Model 3455A 3-a?. Smtn8 IlyZ. M-. T
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Model 3455A PERFORMANCE TESTS 41. I
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Section IV Model 3455A Table 4-2, v
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Section IV Model 3455A TEST OSMLATO
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Table 4.8. Four-Win Ohm Accuney Tnr
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Model 345419 Section IV FUNCTION ..
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Section IV Model 34S;SA Tsblu rE13.
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Section IV Decade 3455A Resistor Ra
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Model 345SA Section IY 1 f 3 DIGITA
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Hswlett-Peekard Model 3d5SA IStands
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OPERAT1PNAL VERIFICATION TEST CARD
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Hewlstt-Packard Model 345SA (Standa
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'MTO-W1RE OHMS ACCURACY TEST M e Rm
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+WO-WIRE OHMS ACCURACY TEST M e Res
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Maintenance described herein is per
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Section V Model 3455A Figure 5-2, 1
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Section V Model 3455A t. Set the AC
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Section VI Model 3455A nator column
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Reference Designation htJO A1117 A
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Reference Designation 4LrlL>1 IIIUC
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A1UUPI ALdlt90 *IUUY~ AAo*Yd AIUUP9
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' Table 6-3. Replaceable Parts QV D
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I I I AIICAII 1901-0518 *L*LHII I 1
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I E;:zn I HP Part Numbsr I ON Descr
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Model 3455A Section VII 7-1. INTROD
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Section YIIl Model 3455A 8-10. IMTR
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Section Ylll THEORY OF OPERATION Mo
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Section Vlll THEORY OF OPERATION Mo
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Section VllI THEORY OF OPERAT~QN Mo
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Section VlII f HEORY OF OPERATION M
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Section YIIJ THEORY OF OPERATION Mo
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Section YIIl f HEORY OF OPERATION M
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Section VIll THEORY OF OPERATION Mo
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Section VlIl THEORY OF OPERATION Mo
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Section VllE THEO~Y OF OPERATION Mo
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Model 34S5A THEORY OF OPERATION Sec
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Section VIII THEORY OF OPERATION Mo
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Section VIII THEORY OF OPERATlOfU M
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Section VIII THEORY OF OPERATION I
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Section VIII THEORY OF OPERATION Mo
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Model 345514 Section VIII 8-175. Th
Page 127 and 128: Model 345SA TROUBLESHOOTING Section
Page 129 and 130: Model 3455A T ROUBLESHOOTlNG Sectio
Page 132 and 133: Section VIII SERVICE GROUP A Model
Page 134 and 135: Section VIII SERVICE GROUP B Model
Page 138 and 139: Section VIII SERVICE GROUP 0 Model
Page 142 and 143: Section VlII SERVICE GROUP B Model
Page 144 and 145: Section VIII SERVICE GROUP & Model
Page 147 and 148: Model 3455A SERVICE GROUP B Sectian
Page 149 and 150: Model 3455A 0-C-l . AC CONVERTOR TR
Page 151: Model: 3455A SERVICE GROUP C %ion Y
Page 154 and 155: Section VIII. SERVICE GROUP C Model
Page 156 and 157: Section VIII SERVICE GROUP D Model
Page 158 and 159: Section VIII 8-E-2. AID Convertor S
Page 160 and 161: Section VIII SERVICE GROUP E Model
Page 162 and 163: Section VIII SERVICE GROUP E Model
Page 164 and 165: Section VIII SERVICE GROUP F Model
Page 166 and 167: 8-76 0.G-2 Powar Swgplius (Sthemsti
Page 168 and 169: Section VIII Model 3455A 8-H-1. f R
Page 170 and 171: Start Turn ln~trumenr ON. Press The
Page 172 and 173: SET Sl SwrTcnEs TO "0" 7 -> .*. .--
Page 174 and 175: Turn The Instrument Off. Remve The
Page 176 and 177: Associated Corn- Figure 8-H-5. Ingu
Page 180 and 181: Wtth A Display Reading Of "7" (Test
Page 182 and 183: With A Display Reading Ot "5" (Test
Page 184 and 185: '3'' (Test 3 Failure) Mea- sure The
Page 186: 7 Start Of "I" (Test S Failure) Mea
Page 189 and 190: Test Points On The A1 0 Assembly).
Page 191 and 192: Model 3455A SERVICE GROUP H Section
Page 193 and 194: NOTE 1 ............ ......... I.INL
Page 195 and 196: NOTE 1 The Signature Analyzer Cantr
Page 198 and 199: NOTE 1 The Signature Analyzer Conrm
Page 200 and 201: 4 S 6 W? 2 3 4 5 6 7 Probe Tp Blink
Page 202 and 203: Pin U1 1 2 9 6 8 10 12 14 U2 1 2 3
Page 204 and 205: Figure 8-H-28. Detailed Block Diagr
Page 206 and 207: l Model 3455A Reference Designation
Page 208: I Refemnee Designation AIUUIL IIJKL
Page 213 and 214: Section VIII Refemce Designation AL
Page 216 and 217: 1 A 1 B 1 C I D I E 1 F I SER. NO.
Page 218: A13 03455-6651 3 Rev. A AA For seri
Page 221 and 222: Figure 8-H-31. True RMS AC Converto
Page 223 and 224: I n CONVERTER A12 1 03455-66512 t -
Page 225: SER. WO. ~400110 AND BELOW . 1 JI I
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A10 0345566510 Rev. C A10. Componen
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A 8 C D 1 E F 1 Component C1.5 6.9
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AA 4 4 A2 03455-66502 Rev. A A1 034
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5 I A I I C I 0 I E I F I SER. NO.
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I ' *hJll Section VIII R efe ren m
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I Designation Number Mfr Part Numbe
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Appendix A Example # 1 (HPP). Dimen
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Appendix A Example # 2 EHPL) 8: die
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