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Pioneer 31-3043 Service Manual
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Pioneer 31-3043 Service Manual

Pioneer 31-3043 Service Manual

Audio/video multi-channel receiver
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MODEL STAV-3770/HTS-102(STAV-3770)
The service manual for this product includes Pioneer's RRV1925 VSX-D307/KUXJI service manual.
The pages preceding that manual list additional specifications, all service changes between
Pioneer's RRV1925 VSX-D307/KUXJI and the 31-3042 STAV-3770/31-3043 HTS-102 (STAV-3770), and
any RadioShack part numbers that are different from the Pioneer part numbers.
The specifications on Page 49 of the RRV1925 service manual for Pioneer's model VSX-D307/
KUXJI are like the specifications listed in the owner's manual for the 31-3042 STAV-3770/31-3043
HTS-102 (STAV-3770). Additional specs are given on the page inside the back cover.
HOME THEATER SYSTEM Model HTS-102 contains AUDIO/VIDEO RECEIVER HTS-102 (STAV-3770)
and 6 speakers (2 front speakers, 1 center speaker, 2 rear speakers and 1 passive subwoofer).
The parts for the speakers are listed on page 3.
Optimus and RadioShack are registered trademarks used by Tandy Corporation.
AUDIO/VIDEO RECEIVER
Catalog Number: 31-3042
©
1998 Tandy Corporation.
All Rights Reserved.
31-3043

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Summary of Contents for Pioneer 31-3043

  • Page 1 The specifications on Page 49 of the RRV1925 service manual for Pioneer's model VSX-D307/ KUXJI are like the specifications listed in the owner's manual for the 31-3042 STAV-3770/31-3043 HTS-102 (STAV-3770). Additional specs are given on the page inside the back cover.
  • Page 2 Be sure to replace only with specified parts. ÷ Ref. No. : Numbers following P and hyphen(–) indicate the page(s) and location number(s) in the RRV1925 service manual, respectively. 31-3042 STAV-3770/31-3043 HTS-102(STAV-3770) and VSX-D307/KUXJI are constructed the same except for the following: Ref.
  • Page 3 Logo Badge Front Port Ring Rear Port Ring Paper Port Tube Foot W/Non Skid Pad SCR PPD0008PO5/4FBO (Foot) Terminal with Network SCR PPD000605/8FBO (Terminal) 31-3043 HTS-102 SPEAKERS Part No. 258224 258997 Part No. 258284 259009 259014 Part No. 242393 20-207A/XL...

  • Page 5: Table Of Contents

    AUDIO/VIDEO MULTI-CHANNEL RECEIVER VSX-D307 THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). Model Type VSX-D307 KUXJ AC120V KUXJI AC120V KCXJI AC120V CONTENTS 1. SAFETY INFORMATION ... 2 2. EXPLODED VIEWS AND PARTS LIST ... 3 3. SCHEMATIC DIAGRAM ... 8 4.

  • Page 6: Safety Information

    VSX-D307 1. SAFETY INFORMATION This service manual is intended for qualified service technicians ; it is not meant for the casual do-it- yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty.

  • Page 7: Exploded Views And Parts List

    2. EXPLODED VIEWS AND PARTS LIST NOTES: Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List. mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation.
  • Page 8 VSX-D307 2.2 EXTERIOR SECTION Refer to "2.3 FRONT PANEL SECTION". KCXJI Type Only Accessory of Front Panel...
  • Page 9 (1) EXTERIOR SECTION PARTS LIST Mark No. Description MOTHER Assy VOLUME DSP Assy CONNECTION Assy HEADPHONE Assy TRANS 1 Assy TRANS 2 Assy PRIMARY Assy FRONT SPEAKER Assy FM/AM TUNER Unit Power Transformer (T1 : AC120V) Fuse (FU2 : 8A) Fuse (FU1 : 10A) AC Power Cord Cord Stopper...
  • Page 10 VSX-D307 2.3 FRONT PANEL SECTION (1) FRONT PANEL SECTION PARTS LIST Mark No. Description FRONT Assy Flexible Cable 20P (J31) (MOTHER CN109-FRONT CN501) Flexible Cable 20P (J35) (MOTHER CN111-FRONT CN502) Getter Power Button Function Button PIONNER Badge LED Lens Sheet Sub Panel Front Panel Screw...
  • Page 11 VSX-D307...

  • Page 12: Schematic Diagram

    VSX-D307 3. SCHEMATIC DIAGRAM 3.1 OVERALL CONNECTION DIAGRAM Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST". FM/AM TUNER UNIT (AXX7046) VOLUME DSP ASSY (AWX7064) MOTHER ASSY (AWX7058 : KUXJ,KUXJI) (AWX7177 : KCXJI) FRONT SPEAKER ASSY (AWX7068)
  • Page 13 FRONT ASSY (AWX7062) CONNECTION ASSY (AWX7060:KUXJ,KUXJI) (AWX7176:KCXJI) POWER TRANSFORMER ATS7205 HEADPHONE ASSY (AWX7066) TRANS 2 ASSY (AWX7071) TRANS 1 ASSY (AWX7070) PRIMARY ASSY (AWX7067) VSX-D307 AC120V 60Hz AC POWER CORD PDG1057...
  • Page 14 VSX-D307 3.2 MOTHER ASSY (1/3) MOTHER ASSY (AWX7058:KUXJ,KUXJI) (AWX7177:KCXJI) CN102(1/2) AKB7015 CN102(2/2) IC151: PHONO RIAA AMP IC101: FUNCTION : AUDIO SIGNAL ROUTE : AUDIO SIGNAL ROUTE (CENTER) : AUDIO SIGNAL ROUTE (SURROUND) IC102: BUFFER AMP...
  • Page 15 CN201 CN202 Q191: RIPPLE FILTER FOR TUNER TO FM/AM TUNER UNIT VSX-D307...
  • Page 16 VSX-D307 3.3 MOTHER ASSY (2/3) MOTHER ASSY (AWX7058:KUXJ,KUXJI) (AWX7177:KCXJI) CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. ICP-N25, MFD BY ROHM CO., LTD. FOR IC403. IC401(2/2) PAC007A 2SC2705 2SC2705 IC401(1/2) PAC007A...
  • Page 17 IC402(1/2) PAC007A IC402(2/2) PAC007A 2SC2705 2SC2705 : AUDIO SIGNAL ROUTE : AUDIO SIGNAL ROUTE (CENTER) : AUDIO SIGNAL ROUTE (SURROUND) VSX-D307...
  • Page 18 VSX-D307 3.4 MOTHER (3/3), CONNECTION AND TRANS 2 ASSEMBLIES (HP) CONNECTION ASSY (AWX7060:KUXJ,KUXJI) (AWX7176:KCXJI) CAUTION : FOR CONTINUED PROTECTION AGAINST NOTE FOR FUSE REPLACEMENT FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. CAUTION - REPLACE ONLY WITH SAME TYPE AND RATINGS ONLY. RISK OF FIRE.
  • Page 19 CN203 CN952 CN953 (HP) CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491003 MFD, BY LITTELFUSE INK. FOR IC71,IC72. (HP) : AUDIO SIGNAL ROUTE (HEADPHONE) (HP) (HP) MOTHER ASSY (AWX7058:KUXJ,KUXJI) (AWX7177:KCXJI) TRANS 2 ASSY (AWX7071) VSX-D307 (HP)
  • Page 20 VSX-D307 3.5 FRONT ASSY CN109 CN111 REMOTE RECEIVER UNIT STANDBY IND. FRONT ASSY (AWX7062)
  • Page 21 S501 : SPEAKER S502 : SELECT S503 : TAPE 2 MONITOR S505 : TONE(–) / BALANCE(L) S506 : PHONO S507 : STANDBY / ON S508 : TONE(+) / BALANCE(R) S509 : FM / AM S510 : STATION / FREQUENCY(–) S511 : DOLBY PRO LOGIC S512 : CD S513 : MEMORY S514 : DOLBY VIRTUAL...
  • Page 22 VSX-D307 3.6 VOLUME DSP ASSY (1/2) VOLUME DSP ASSY(AWX7064) CN108 IC206: 44kHz L.P.F.
  • Page 23 IC202: TONE CONTROL IC211: 44kHz L.P.F. & AMP –5V CN107 : AUDIO SIGNAL ROUTE : AUDIO SIGNAL ROUTE (CENTER) : AUDIO SIGNAL ROUTE (SURROUND) (HP) : AUDIO SIGNAL ROUTE (HEADPHONE) VSX-D307 IC207: 6dB AMP CN106...
  • Page 24 VSX-D307 3.7 VOLUME DSP ASSY (2/2) VOLUME DSP ASSY(AWX7064) : AUDIO SIGNAL ROUTE : AUDIO SIGNAL ROUTE (CENTER) : AUDIO SIGNAL ROUTE (SURROUND) IC204(BU4052BCF) CONTROL...
  • Page 25 1SS254 1SS254 Q311 KRA101M 1SS254 IC301: PRE-AMP IC301(1/2) UPC4570C IC301(2/2) UPC4570C IC302: PRE-AMP IC302(2/2) UPC4570C IC302(1/2) UPC4570C VSX-D307...
  • Page 26 VSX-D307 3.8 FRONT SPEAKER, HEADPHONE, PRIMARY AND TRANS 1 ASSEMBLIES FRONT SPEAKER ASSY (AWX7068) IC801: VIDEO SW IC801(NJM2279D) LOGIC : AUDIO SIGNAL ROUTE...

  • Page 27: Headphone Assy

    NOTE FOR FUSE REPLACEMENT FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. CAUTION - REPLACE ONLY WITH SAME TYPE AND RATINGS ONLY. FU1:REK1087 LIVE POWER 10000p/250 NEUTRAL CORD 2.2M 1/2W PRIMARY ASSY (AWX7067) (HP) : AUDIO SIGNAL ROUTE (HEADPHONE) 10000p/250 FU2:REK1086 1SS254 RY901: POWER RELAY...

  • Page 28: Pcb Connection Diagram

    VSX-D307 4. PCB CONNECTION DIAGRAM 4.1 MOTHER ASSY NOTE FOR PCB DIAGRAMS : 1. Part numbers in PCB diagrams match those in the schematic diagrams. 2. A comparison between the main parts of PCB and schematic diagrams is shown below. Symbol In PCB Symbol In Schematic Part Name...
  • Page 29 CN201 CN202 R UNIT Q605 Q457 Q451 Q401 Q407 IC601-IC603 IC607 IC606 Q402-Q404 Q604 IC604 IC401 Q408 Q602 VSX-D307 CN203 CN92 CN91 (ANP7242-A) Q651-Q654 IC651 Q601 Q603...
  • Page 30 VSX-D307 4.2 CONNECTION, TRANS 2 AND FRONT ASSEMBLIES CONNECTION ASSY CN602 FRONT ASSY CN601 Q503 Q581 Q582 IC581 SIDE A Q501 Q583 Q502...
  • Page 31 CN952 CN953 IC201 IC201 Q504 TRANS 2 ASSY T1 POWER TRANSFORMER (ANP7242-A) CN111 Q505 SIDE A VSX-D307 CN109 (ANP7243-B)
  • Page 32 VSX-D307 4.3 VOLUME DSP ASSY IC201 IC206 IC205 IC202 Q202 IC211 Q311 IC302 IC207 IC301 Q313-Q316 IC208 IC209 Q302 IC204 Q301 VOLUME DSP ASSY IC202 IC204 SIDE A CN108 CN107 CN106 (ANP7243-B)
  • Page 33 4.4 FRONT SPEAKER, HEADPHONE, PRIMARY AND TRANS 1 ASSEMBLIES Q704 Q702 Q701 PRIMARY ASSY CN93 CN94 CN71 Q801 Q703 Q802 IC801 CN403 CN402 (ANP7243-B) CN72 SIDE A VSX-D307 IC751 IC752 FRONT SPEAKER ASSY TRANS 1 ASSY AC POWER CORD HEADPHONE ASSY...

  • Page 34: Pcb Parts List

    VSX-D307 Mark No. Description 5. PCB PARTS LIST NOTES: Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List. mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation.
  • Page 35 Mark No. Description D191 ZENER DIODE D401 DIODE D402 DIODE D403 DIODE D404 DIODE D405 DIODE D406 DIODE D451 DIODE D452 DIODE D453 DIODE D454 DIODE D455 DIODE D457 DIODE D458 DIODE D601 DIODE D602 DIODE D603 DIODE D604 DIODE D605 DIODE D606...
  • Page 36 VSX-D307 Mark No. Description C601 ELECTROLYTIC CAPACITOR (8200 F/71V) C602 ELECTROLYTIC CAPACITOR (8200 F/71V) C603 ELECT. CAPACITOR C604 ELECT. CAPACITOR C605 ELECT. CAPACITOR C606 ELECT. CAPACITOR C607 CERAMIC CAPACITOR C608 CERAMIC CAPACITOR C609 ELECT. CAPACITOR C610 ELECT. CAPACITOR C611 CERAMIC CAPACITOR C612 ELECT.
  • Page 37 Mark No. Description FRONT ASSY SEMICONDUCTORS IC501 CONTROL MCU Q501 TRANSISTOR Q502 TRANSISTOR Q503 TRANSISTOR Q504 TRANSISTOR Q505 TRANSISTOR D501 DIODE D502 D503 DIODE D504 DIODE D505 DIODE D506 DIODE D507 DIODE D508 DIODE D509 DIODE D510 DIODE D511 DIODE D512 DIODE D513...
  • Page 38 VSX-D307 Mark No. Description C206 AXIAL CERAMIC C. C207 AXIAL CERAMIC C. C208 CERAMIC CAPACITOR C209 CERAMIC CAPACITOR C211 ELECT. CAPACITOR C212 ELECT. CAPACITOR C213 CERAMIC CAPACITOR C214 CERAMIC CAPACITOR C215 CERAMIC CAPACITOR C216 CERAMIC CAPACITOR C217 CERAMIC CAPACITOR C218 CERAMIC CAPACITOR C219 CERAMIC CAPACITOR...

  • Page 39: Adjustment

    Mark No. Description RESISTORS R701 CARBON FILM RESISTOR R702 CARBON FILM RESISTOR R703 METAL OXIDE RESISTOR R704 METAL OXIDE RESISTOR Other Resistors OTHERS CN701 SPEAKER TERMINAL 4-P CN702 PIN JACK 1-P JUMPER WIRE 9P JUMPER WIRE 8P JA801 PIN JACK(4P)YELLOW JA851 JACK HEADPHONE ASSY...

  • Page 40: General Information

    VSX-D307 7. GENERAL INFORMATION 7.1 PARTS 7.1.1 IC • The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams. CXD2724Q (VOLUME DSP ASSY : IC201) • DSP IC Block Diagram RVDT MICRO COMPUTER...
  • Page 41 Pin Name XTLI Crystal oscillation circuit input AVSX – Analog ground for master clock XSOUT S-ch D/A converter output AVS6 – Ground for S-ch D/A converter AVD6 – Power supply for S-ch D/A converter Analog input of R-ch A/D converter OP amp.

  • Page 42: Display

    VSX-D307 7.1.2 DISPLAY AAV7053 (FRONT ASSY : V501) • FL TUBE ANODE AND GRID ASSIGNMENT S1, S3 PIN ASSIGNMENT Pin No. Connection S1, S3 S1, S3 S1, S3 (2G - 9G) S1, S3 S1, S3 S1, S3 (1G) S1, S3...

  • Page 43: Disassembly

    7.2 DISASSEMBLY 7.2.1 Bonnet and FRONT Assy BONNET FRONT ASSY Front Panel VSX-D307 FRONT ASSY...
  • Page 44 VSX-D307 7.2.2 MOTHER and CONNECTION Assemblies MOTHER AND CONNECTION ASSEMBLIES CONNECTION ASSY Rivet Cutting Pliers MOTHER ASSY...

  • Page 45: Diagnosis

    7.3 DIAGNOSIS POWER PACK (MOTHER ASSY : IC401 and IC402) (At Bottom Side) Cut six portions on the Under Base by nipper and remove a Cover. Front Diagnose the POWER PACK (IC401 and IC402). Front CAUTION : After performing the above operation, be sure to stick the UL caution card (Part No.: AAX-313) to the prescribed position.(It is required by the UL regulations.) After cutting the Under base and the Cover with a pair of nippers, be sure to smooth roughness from the edges to protect the user from a risk of damage caused by sharp edges.

  • Page 46: Block Diagram

    VSX-D307 7.4 BLOCK DIAGRAM...
  • Page 47 Test Points for Diagnosis TP-L1 TP-R1 IC101 TP-C6 TP-S7 IC402 TP-L2 TP-R2 IC201 IC205 TP-L3 TP-S4 TP-R3 TP-C3 IC202 IC211 TP-R4 TP-L4 IC302 TP-C4 TP-S5 TP-L6 TP-R6 IC204 TP-R5 TP-L5 IC102 TP-L7 TP-R8 TP-L8 TP-R7 IC401 VOLUME DSP ASSY FRONT SPEAKER ASSY TP-L9 TP-R9 IC301...

  • Page 48: Panel Facilities And Specifications

    VSX-D307 8. PANEL FACILITIES AND SPECIFICATIONS 8.1 PANEL FACILITIES Front Panel The size of characters in the figure may different from that on the actual product. AUDIO/VIDEO MULTI-CHANNEL RECEIVER STANDBY MEMORY MPX MODE CLASS STANDBY/ON TUNING – SELECT STATION – FREQUENCY SPEAKER 4-CHANNEL...
  • Page 49 Display SP A DIRECT LOUDNESS PRO LOGIC VIRTUAL 1 SPEAKER A indicator Lights when FRONT SPEAKER is ON. 2 DIRECT indicator Lights when DIRECT is ON. 3 LOUDNESS indicator Lights when LOUDNESS is ON. 4 PRO LOGIC indicator Lights when Dolby Pro Logic is selected. 5 VIRTUAL indicator Lights when DOLBY VIRTUAL is selected.

  • Page 50: Connecting Devices

    VSX-D307 CONNECTING DEVICES For better reception of signals, use the FM external antenna. LOOP ANTENNA UNBAL coaxial cable. FM antenna Assembling the AM loop antenna Stretch out fully a n d s e c u r e onto the wall using pins.
  • Page 51 Antenna terminal Connect the white plug to L, red plug to R, and yellow plug to VIDEO. Be sure to insert completely. The size of characters and terminal positions in the figures may differ from those on the actual product. Speaker system (Front) KERS CAUTION:...

  • Page 52: Direct Button

    VSX-D307 REMOTE CONTROL UNIT SOURCE SELECT CHANNEL STANDBY/ON STATION TV FUNC. TV VOL. TAPE BAND FREQ. TUNER CLASS D.ACCESS TEST REAR TONE LEVEL CENTER CENTER MODE LEVEL CONTROL CD DISC DELAY EFFECT SURROUND TIME PRO LOGIC DSP MODE MUTING VIRTUAL LOUD.

  • Page 53: Specifications

    Manufactured under license from Dolby Laboratories Licensing Corporation. “Dolby”, “AC-3”, “Pro Logic” and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation. Copyright 1992 Dolby Laboratories, Inc. All rights reserved. FM Tuner Section Frequency Range ... 87.5 MHz to 108 MHz Usable Sensitivity ...
  • Page 55 Audio Amplifier Section Continuous power output, 0.9% THD, 2 channels driven, 8 load ... 40 Hz : More than 90 W Gain, 8 load ... Phono : 80.0 3 dB Noise output, 1 k -terminated input, VR at maximum ... Phono : Less than 60 mV Residual noise, VR at minimum ...
  • Page 56 RadioShack A Division of Tandy Corporation Fort Worth, Texas 76102 RRV1949M ZZE Printed in Japan...

This manual is also suitable for:

Optimus stav-3770Vsx-d307Optimus hts-102

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