Pioneer VSX-D412-K Service Manual
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Pioneer VSX-D412-K Service Manual

Audio/video multi-channel receiver
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AUDIO/VIDEO MULTI-CHANNEL RECEIVER
VSX-D412-K
VSX-D412-S
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
Type
VSX-D412-K
KUXJI
VSX-D412-S
KUXJI
VSX-D412-K
KCXJI
VSX-D412-S
KCXJI
For details, refer to "Important symbols for good services" .
PIONEER CORPORATION
PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION 2003
STANDBY
STANDBY / ON
PHONES
Power Requirement
AC120V
AC120V
AC120V
AC120V
4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
INPUT
MULTI JOG
SELECTOR
ENTER
MASTER VOLUME
ADVANCED
STEREO/
SIGNAL
STATION
TUNING
STANDARD
SURROUND
DIRECT
SELECT
MONITOR
MIDNIGHT
LOUDNESS
TONE
QUICK SETUP
DOWN
UP
LISTENING MODE
MULTI JOG
TUNER EDIT
CLASS
BAND
MPX
INPUT ATT
FL DIMMER
MULTI JOG
R
VSX-D412-K
ORDER NO.
RRV2727
Remarks
T-ZZR FEB. 2003 printed in Japan

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  • Page 1 PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936 PIONEER CORPORATION 2003 T-ZZR FEB.

  • Page 2: Safty Information

    PIONEER Service Manual. A subscription to, or additional copies Also test with plug reversed of, PIONEER Ser vice Manual may be obtained at a (Using AC adapter Earth nominal charge from PIONEER. plug as required)
  • Page 3 By following the instructions in this manual, be sure to apply the prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed ones should be used. VSX-D412-K...

  • Page 4: Table Of Contents

    7.1.1 DISASSEMBLY and PCB LOCATION....................63 7.1.2 U-COM BLOCKDIAGRAM ........................64 7.1.3 PROTECTION CIRCUIT ........................65 7.1.4 POWER ON SEQUENCE ........................66 7.1.5 POWER OFF SEQUENCE ........................67 7.2 PARTS..............................68 7.2.1 IC ................................68 7.2.2 DISPLAY ............................... 77 8. PANEL FACILITIES ............................79 VSX-D412-K...

  • Page 5: Specifications

    BASS ..............± 6 dB (100 Hz) Power Requirements ..........AC 120 V, 60Hz TREBLE ..............± 6 dB (10 kHz) Power Consumption LOUDNESS ........+9 dB/+9 dB (100 Hz/10 kHz) VSX-D412-K ............260W (KU) Signal-to-Noise Ratio (IHF, short circuited, A network) VSX-D412-S ............

  • Page 6: Exploded Views And Parts List

    Screws adjacent to mark on product are used for disassembly. For the applying amount of lubricants or glue, follow the instructions in this manual. (In the case of no amount instructions, apply as you think it appropriate.) 2.1 PACKING /KCXJI Type VSX-D412-K...
  • Page 7 NSP 14 Accessory Board XHB3008 Operating instructions See Contrast table(2) Remote Control Unit XXD3038 (2) CONTRAST TABLE VSX-D412-K/KUXJI, /KCXJI and VSX-D412-S/KUXJI, /KCXJI are constructed the same except for the following : VSX-D412-K/ VSX-D412-S/ VSX-D412-K/ VSX-D412-S/ Mark Symbol and Description KUXJI...

  • Page 8: Exterior Section

    2.2 EXTERIOR SECTION 39(1/2) 39(2/2) VSX-D412-K / Type Accessory of Front Panel NON-CONTACT SIDE CONTACT SIDE VSX-D412-S/ Type Refer to "2.3 FRONT PANEL SECTION". VSX-D412-K/ Type VSX-D412-K...
  • Page 9 KAWA CN5005 - FM/AM TUNER CN201 Holder XWZ3572 19P F•F•C/30V (J35) XDD3101 DD CN106 - AMP INPUT CN254 (2) CONTRAST TABLE VSX-D412-K/KUXJI, /KCXJI and VSX-D412-S/KUXJI, /KCXJI are constructed the same except for the following : VSX-D412-K/ VSX-D412-S/ VSX-D412-K/ VSX-D412-S/ Mark Symbol and Description...

  • Page 10: Front Panel Section

    2.3 FRONT PANEL SECTION VSX-D412-K...
  • Page 11 See Contrast table(2) NSP 20 C Ring Dim 8.1 XBH3016 Led Lens 1.6 XAK3308 (2) CONTRAST TABLE VSX-D412-K/KUXJI, /KCXJI and VSX-D412-S/KUXJI, /KCXJI are constructed the same except for the following : VSX-D412-K/ VSX-D412-S/ VSX-D412-K/ VSX-D412-S/ Mark Symbol and Description KUXJI...

  • Page 12: Block Diagram And Schematic Diagram

    IC9703 config) (for DECODE) IC1901 CN1901 CN9101 IC9703 IC9508 IC9502 (SW) BS62LV TC74 1024TC-70 VHC574F (RAM for IC9503 AAC) TC74 IC9504 VHC574F PDN030A (8 16bit) (ROM for DECODE) DIGITAL IN ASSY IC303 CN307 CN104 IC302 IC302 6CH IN ASSY VSX-D412-K...
  • Page 13 U+5V NECK-B IC51 IC301 POWER AMP Q702 IC601, IC602 +BVL D51-D54 (CONPONENT SEL) D702 RY51 -BVL FL AC AC IN CN402 FL AC T+12V IC805 +12V POWER IC801 D801–D804 TRANSFORMER CN101 -12V IC802 D721–D724 D+5V IC803 CN101 A+5V IC804 VSX-D412-K...

  • Page 14: Overall Wiring Connection Diagram

    3.2 OVERALL WIRING CONNECTION DIAGRAM R.ENCODER ASSY (XWZ3511) FRONT ASSY (XWZ3587) AMP INPUT ASSY (XWZ3547) D.D & INPUT ASSY HASHIGETA (XWX3044) ASSY (XWZ3566) KAWA ASSY (XWZ3529) 1/4, 2/4, 3/4, REGULATOR ASSY VIDEO (XWZ3544) ASSY (XWZ3490) FM/AM TUNER MODULE (AXQ7231) 6CH IN ASSY (XWZ3507) VSX-D412-K...
  • Page 15 Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST". POWER SW ASSY (XWZ3510) H.P. ASSY (XWZ3513) TRANS3 ASSY (XWZ3560) J3(J8) (XTS3058) TRANS1 TRANS2 ASSY ASSY (XWZ3552) (XWZ3555) FU701 : REK1087(10A/125V) 1/2, AMP& PRIMARY ASSY (XWZ3532) FU1 : REK1087(10A/125V) FU2 : REK1086(8A/125V) DIGITAL IN ASSY (XWZ3517) ADG7024 VSX-D412-K...

  • Page 16: Input(1/4) Assy

    3.3 D.D & INPUT(1/4) ASSY D.D & INPUT ASSY (XWX3044) CN802 VSX-D412-K...
  • Page 17 CN307 : The power supply is shown with the marked box. 2/4,4/4 2/4,3/4,4/4 CN1002 : AUDIO SIGNAL ROUTE (Analog, Lch) : AUDIO SIGNAL ROUTE (Analog, Rch) VSX-D412-K...

  • Page 18: Input(2/4) Assy

    3.4 D.D & INPUT(2/4) ASSY D.D & INPUT ASSY (XWX3044) CN1901 VSX-D412-K...
  • Page 19 : AUDIO SIGNAL ROUTE (FL) : AUDIO SIGNAL ROUTE (Front L ch) (SL) : AUDIO SIGNAL ROUTE (Rear L ch) (SW) : AUDIO SIGNAL ROUTE (Sub Woofer) : AUDIO SIGNAL ROUTE (Center) VSX-D412-K...

  • Page 20: Input(3/4) Assy

    3.5 D.D & INPUT(3/4) ASSY VSX-D412-K...
  • Page 21 D.D & INPUT ASSY (XWX3044) : The power supply is shown with the marked box. VSX-D412-K...

  • Page 22: Input(4/4) Assy

    3.6 D.D & INPUT(4/4) ASSY D.D & INPUT ASSY (XWX3044) VSX-D412-K...
  • Page 23 VSX-D412-K...

  • Page 24: Amp & Primary(1/2), Trans2 And Trans3 Assys

    3.7 AMP & PRIMARY(1/2), TRANS2 and TRANS3 ASSYS AMP&PRIMARY ASSY (XWZ3532) VSX-D412-K...
  • Page 25 AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491010 FOR IC604, IC605, IC606, AND IC607 MFD, BY LITTELFUSE INC. • NOTE FOR FUSE REPLACEMENT FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. CAUTION - REPLACE WITH SAME TYPE AND RATINGS ONLY. VSX-D412-K...

  • Page 26: Amp & Prim.(2/2), Reg., Hashigeta, Amp Input And Trans1 Assys

    3.8 AMP & PRIM.(2/2), REG., HASHIGETA, AMP INPUT and TRANS1 ASSYS HASHIGETA ASSY (XWZ3566) AMP& PRIMARY ASSY (XWZ3532) REGULATOR ASSY (XWZ3544) CN302 VSX-D412-K...
  • Page 27 NO. 491.315 FOR IC52 MFD, BY LITTELFUSE INC. TRANS1 ASSY REK1086 (8A) (XWZ3552) REK1087 (10A) LIVE NEUTRAL AC POWER CORD ADG7024 • NOTE FOR FUSE REPLACEMENT FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. CAUTION - REPLACE WITH SAME TYPE AND RATINGS ONLY. VSX-D412-K...

  • Page 28: Video And 6Ch In Assys

    3.9 VIDEO and 6CH IN ASSYS VIDEO ASSY (XWZ3490) CN5004 VSX-D412-K...
  • Page 29 : AUDIO SIGNAL ROUTE (FL) : AUDIO SIGNAL ROUTE (Front L ch) (SL) : AUDIO SIGNAL ROUTE (Rear L ch) (SW) : AUDIO SIGNAL ROUTE (Sub Woofer) : AUDIO SIGNAL ROUTE (Center) CN104 6CH IN ASSY (XWZ3507) VSX-D412-K...

  • Page 30: Front, R.encoder And Power Sw Assys

    3.10 FRONT, R.ENCODER and POWER SW ASSYS R.ENCODER ASSY S511 : ENTER S512 : MULTI JOG DIAL S513 : MASTER VOLUME R.ENCODER ASSY (XWZ3511) CN5001 FRONT ASSY (XWZ3587) CN102 VSX-D412-K...
  • Page 31 S458 : STEREO/ DIRECT S459 : FL DIMER S460 : INPUT ATT S461 : MPX S462 : BAND S463 : STANDARD S464 : TUNING(+) S465 : TUNING(–) S466 : STATION(+) S467 : STATION(–) S468 : MULTI JOG S476 : CLASS VSX-D412-K...

  • Page 32: Digital In, H.p. And Kawa Assys

    3.11 DIGITAL IN, H.P. and KAWA ASSYS DIGITAL IN ASSY (XWZ3517) VSX-D412-K...
  • Page 33 H.P. ASSY (XWZ3513) CN303 CN201 KAWA ASSY (XWZ3529) CN804 CN1001 VSX-D412-K...

  • Page 34: Fm/Am Tuner Module

    3.12 FM/AM TUNER MODULE FM/AM TUNER MODULE (AXQ7231) FM FRONT END (FM) (FM) (FM) (FM) (FM) (AM) (AM) (AM) MW RF TUNING BLOCK (FM) (AM) OSC : 981 - 2052kHz 9k step VSX-D412-K...
  • Page 35 : The power supply is shown with the marked box. (TX) : AUDIO SIGNAL ROUTE (TUNER) (AM) : AM SIGNAL ROUTE (FM) : FM SIGNAL ROUTE ATF7026 (AM) (TX) (FM) (TX) (TX) (TX) (FM) (FM) (TX) (AM) L201 ATE7003 PLL IC VSX-D412-K...

  • Page 36: Pcb Connection Diagram

    Symbol In PCB Symbol In Schematic Part Name Diagrams Diagrams C E B Capacitor Connector Transistor B C E SIDE A Transistor with resistor B C E Field effect SIDE B Chip Part transistor P.C.Board Resistor array 3-terminal regulator VSX-D412-K...

  • Page 37: Trans1, Trans2 And Trans3 Assys

    4.1 TRANS1, TRANS2 and TRANS3 ASSYS SIDE A SIDE A TRANS3 ASSY J6 J4 J3 J5 (XNP3053-C) POWER TRANSFORMER ATTENTION TRANS2 ASSY REMPLACER LE IC LINKS COMME INDIQUE. DE CHEZ LITTELFUSE INC. (XNP3053-C) TRANS1 ASSY (XNP3053-C) C D I VSX-D412-K...

  • Page 38: Input Assy

    4.2 D.D & INPUT ASSY SIDE A D.D & INPUT ASSY CN402 CN106 CN105 IC301 IC110 IC105 Q107 Q108 IC103 IC102 Q9603 Q9604 Q9605 Q9606 Q9611 Q9601 Q Q9610 Q9601 Q9602 IC9601 IC106 Q109 Q110 IC107 Q111 Q112 Q9609 Q0608 Q9607 CN254 CN1002 VSX-D412-K...
  • Page 39 Q9611 Q9601 Q9602 IC9101 IC9507 IC9501 IC9504 IC9201 Q9201 Q9202 IC9812 Q9203 Q9204 IC104 CN802 Note : The pin of function IC(IC101 TC9273F-007)can be checked from side-A by the through-hole round. The pin No. is printed on the side-A. VSX-D412-K...
  • Page 40 SIDE B D.D & INPUT ASSY CN9101 CN104 CN105 IC9701 IC9502 IC9705 CN101 IC9503 Q9551 Q9552 IC9703 IC970 IC9811 IC9702 IC9705 IC101 VSX-D412-K...
  • Page 41 SIDE B CN105 IC9701 (XNP3056-C) IC9705 IC112 C9703 IC9707 IC9705 IC9704 VSX-D412-K...

  • Page 42: Amp Input And Amp & Primary Assys

    IC602 IC602 IC602 R613 R613 R613 D633 D633 D633 R607 R607 R607 IC602 IC602 IC602 IC601 IC601 IC601 W502 W502 W502 R601 R601 R601 IC603 IC603 IC603 W501 W501 W501 W507 W507 W507 W505 W505 W505 B B H VSX-D412-K...
  • Page 43 REMPLACER LE IC LINKS REMPLACER LE IC LINKS CN53 CN53 CN53 DE CHEZ LITTELFUSE INC. DE CHEZ LITTELFUSE INC. DE CHEZ LITTELFUSE INC. CN801 CN801 CN801 D722 D722 D722 CN53 CN53 CN53 W509 W509 W509 D724 D724 D724 KN601 KN601 KN601 VSX-D412-K...

  • Page 44: Front, Power Sw, H.p. And R.encoder Assys

    W248 S466 S465 S464 S467 S463 S457 S458 W224 W223 W222 S462 S468 S461 S460 S459 S476 CN702 H.P ASSY 1551 CMKI-P3X 1551 R1552 (XNP3052-C) HP R KN1551 POWER SW ASSY HP L R1551 JA1551 (XNP3052-C) O Q U VSX-D412-K...
  • Page 45 4 T_GND 3 FM COMP 2 STEREO 1 TUNED 1 AC RY 2 TONE 3 FENC A 4 FENC B 5 GND S512 6 ENC B 7 ENC A (XNP3052-C) CMKS-P3X S511 W289 S513 R.ENCODER ASSY KNIFE SPACE (XNP3052-C) VSX-D412-K...
  • Page 46 2 STEREO R476 1 TUNED R411 1 AC RY 2 TONE 3 FENC A 4 FENC B R458 5 GND 6 ENC B 7 ENC A R459 Q401 Q441 Q442 IC401 CMKS-P3X R512 R.ENCODER XWZ3511 XWZ3512 XWZ3582 R.ENCODER ASSY (XNP3052-C) VSX-D412-K...
  • Page 47 Q405 Q403 Q481 Q482 IC481 Q483 Q471 H.P ASSY POWER SW. R501 1551 CMKI-P3X XWZ3510 STBY CMKI-P3X XWZ3513 R1556 (XNP3052-C) Q1551 POWER SW ASSY C1552 HPSW uGND uGND R1555 Q1552 C1557 HP GND C1556 C1558 (XNP3052-C) O Q U VSX-D412-K...

  • Page 48: Regulator, Hashigeta And Kawa Assys

    W644 C807 IC803 W633 D +5V Q5001 C808 C802 C801 C804 CN803 W625 REG -B IC802 W743 W631 -12V W621 C806 W632 W622 REG +B C803 IC801 CN801 W603 +12V C805 W602 CMKS-P3X KNIFE SPACE CN803 CN801 CN302 CN53 VSX-D412-K...
  • Page 49 PLL DO T MUTE STEREO TUNED +10V FM COMP Q5001 CN303 A MUTE A MUTE SR OUT SR OUT 4053A 4053A PLL CE 4053INH SYS DT 4053INH SYS CK PLL DO T MUTE STEREO TUNED +10V FM COMP (XNP3052-C) (XNP3052-C) VSX-D412-K...

  • Page 50: Digital In, 6Ch In And Video Assys

    GND D V +5D DISELC DISELB DISELA CN1901 (XNP3052-C) CN9101 (XNP3052-C) CN307 CN104 VIDEO ASSY CN305 W426 W138 -12V +12V W139 SW.OUT 4053INH W169 4053A SROUT C338 AMUTE C310 CN803 Q302 Q302 CN5004 Q301 CN301 Q301 (XNP3052-C) J L M VSX-D412-K...

  • Page 51: Video Assy

    CN307 MONI. C1360 R305 R303 R302 PLAY VIDEO ASSY SW Pre R304 C333 R306 -12V IC301 Q303 +12V SW.OUT IC301 C 3 3 9 4053INH 4053A C340 SROUT AMUTE D304 C311 D 3 0 3 (XNP3052-C) J L M VSX-D412-K...

  • Page 52: Fm/Am Tuner Module

    4.7 FM/AM TUNER MODULE SIDE B SIDE A FM/AM TUNER MODULE CN201 CN5005 (ANP7338-B) Q202 FM/AM TUNER MODULE SIDE B CN201 (ANP7338-B) Q201 IC201 Q203 Q205 IC202 Q204 VSX-D412-K...

  • Page 53: Pcb Parts List

    D201 DIODE RB501V-40 IC9201 IC NJM2100M D202 DIODE RB501V-40 IC9812 REGULATOR IC(2.5V) NJM2391DL1-25 D301 DIODE 1SS355 IC9811 IC NJM2391DL1-33 D9601 DIODE 1SS181 IC102 E-SW IC NJU7312AM D9602 DIODE 1SS181 IC9601 E-SW IC NJU7313AM D9921 DIODE 1SS355 IC9504 P2ROM(4MBIT) PD8104A VSX-D412-K...
  • Page 54 C9102 CAPACIOR CCSRCH220J50 C136 CAPACIOR CEAT100M50 C9103 CAPACIOR CCSRCH471J50 C137 CAPACIOR CEAT100M50 C9104 CAPACIOR CKSRYB103K50 C138 CAPACIOR CKSRYB103K50 C9105 CAPACIOR CEAT101M10 C139 CAPACIOR CKSRYB223K50 C9106 CAPACIOR CEAT101M10 C140 CAPACIOR CKSRYB104K16 C9107 CAPACIOR CKSRYB103K50 C141 CAPACIOR CKSRYB103K50 C9108 CAPACIOR CEAT101M10 VSX-D412-K...
  • Page 55 C9584 CAPACIOR CKSRYB103K50 C9816 CAPACIOR CCSRCH471J50 C9611 CAPACIOR CCSRCH471J50 C9817 CAPACIOR CKSRYB103K50 C9612 CAPACIOR CCSRCH471J50 C9818 CAPACIOR CKSRYB104K16 C9613 CAPACIOR CCSRCH471J50 C9614 CAPACIOR CCSRCH471J50 RESISTORS C9615 CAPACIOR CEAT4R7M50 R9104 RESISTOR RS1/16S1802F C9616 CAPACIOR CEAT4R7M50 > R174 METAL OXIDE RESISTORRS1LMF101 VSX-D412-K...
  • Page 56 > D54 DIODE S5688G C612 CAPACITOR CET101M16 > D55 DIODE S5688G C615 CAPACITOR CENP2R2M50 D56 DIODE 1SS133 D58 ZENER DIODE MTZJ5.1 C616 CAPACITOR CENP2R2M50 D601 DIODE 1SS133 C631 CAPACITOR CKPUYB102K50 C632 CAPACITOR CKPUYB331K50 D602 DIODE 1SS133 C633 CAPACITOR CET4R7M50 VSX-D412-K...

  • Page 57: Regulator Assy

    C805 CAPACITOR CET101M16 > R761 CARBON FILM RESISTOR RD1/4PUF101J > R762 CARBON FILM RESISTOR RD1/4PUF101J C806 CAPACITOR CET101M16 > R763 METAL OXIDE RESISTOR RS1LMF4R7J C807 CAPACITOR CKPUYF103Z25 > R764 METAL OXIDE RESISTOR RS1LMF4R7J C808 CAPACITOR CET101M10 C809 CAPACITOR CET332M16 VSX-D412-K...

  • Page 58: Digital In Assy

    C1928 CAPACIOR CCSRCH271J50 C307-C310, C312, C314, C338 CEAT470M25 C1929 CAPACIOR CKSRYB103K50 C1360, C302 CKSRYB103K50 C339, C340 CKSRYB104K25 RESISTORS C304-C306 CKSRYB221K50 Other Resistors RS1/16S###J C333 CKSRYB331K50 OTHERS C311, C313 CKSRYB473K25 CN1901(7P FFC CONNECTOR) 52045-0745 RESISTORS JA1902 (OPTICAL LINK IN) JFJ4000-010020 VSX-D412-K...
  • Page 59 401 (REMOTE CONTROL UNIT) GP1U27X 404 (7P CABLE HOLDER) 51063-0705 D407 CHIP DIODE RB501V-40 471 (4P CABLE HOLDER) 51063-0405 D408 CHIP DIODE RB501V-40 CN401 (17P FFC CONNCTOR) 52044-1745 D410 DIODE 1SS355 CN402 (28P FFC CONNCTOR) 52044-2845 D442 DIODE 1SS355 VSX-D412-K...
  • Page 60 IC201 M/FMIF+MPX IC BA1451F IC202 PLL IC LC72131MD RESISTORS Q201 TRANSISTOR 2SC2412K R103 RESISTOR RS1/10S221J Q202 TRANSISTOR DT124ES R104 RESISTOR RS1/10S221J Q203 TRANSISTOR DTC124EK R211 RESISTOR RD1/4PU221J R221 RESISTOR RD1/4PU222J Q204 TRANSISTOR 2SC2412K R233 RESISTOR RD1/4PU391J Q205 TRANSISTOR 2SC2412K VSX-D412-K...
  • Page 61 Part No. R243 RESISTOR RS1/10S0R0J Other Resistors RS1/16S###J OTHERS CN201 (13P SOCKET) 52044-1345 BN201 (4P ANTENNA TERM.) AKA7003 (SHIELD CASE T) ANK7072 (SHIELD CASE B) ANK7073 X201 (CRYSTAR RESO. 7.2MHz) ASS1093 FM FRONT END AXF7003 AM RF TUNING BLOCK AXX7071 VSX-D412-K...

  • Page 62: Adjustment

    Pin 21 and Pin 23 of IC201 (Test point Vtm) Adjustment gets within 0 ± 50mV. PRODUCT MPX SG FM SG Voltmeter FM75Ω antenna terminal Fig.1 Adjustment Wiring Diagram FM/AM TUNER MODULE L201 IC201 pin 21 pin 23 SIDE B Fig.2 Adjustment Point VSX-D412-K...

  • Page 63: General Information

    POWER SW Assy R. ENCODER Assy H.P. Assy AMP INPUT Assy TRANS 3 Assy D.D & INPUT Assy TRANS 1 Assy KAWA Assy TRANS 2 Assy VIDEO Assy AMP&PRIMARY Assy FM/AM TUNER MODULE 6CH IN Assy REGULATOR Assy DIGITAL IN Assy VSX-D412-K...

  • Page 64: U-Com Blockdiagram

    5V/3V Level Shifter 17: DATA SYS DT 16: CLK SYS CK IC9505: 5V -->3V TC74LVX244FT 14: ST SYS ST IC9506: 3V-->5V TC74VHCT244AFT CDTO CRST PLL DO PLL CS IC401: System Microprocessor TUNED STEREO CSDO PDG268B TMUTE CRES RDS DATA RDS CLK VSX-D412-K...

  • Page 65: Protection Circuit

    When an overload is detected, A.MUTE* is turned on, speaker relay is turned off, then "OVERLOAD" flashes on the display. ↓ The abnormality continues for 3 seconds. ↓ Continues. ↓ Recovery The power is shut off even if the The power is shut off. unit recovers. VSX-D412-K...

  • Page 66: Power On Sequence

    7.1.4 POWER ON SEQUENCE VSX-D412-K...

  • Page 67: Power Off Sequence

    FUNCTION SW full open (TC9273F) IC101 DSP,2ch, 5.1ch LINE full open (NJU7313AM) IC9601 VIDEO system mute (NJM2296) IC301 IC351/IC352 TUNER mute (LC72131) IC202 E-VOLUME mute (M62446FP) IC103 (CS49329) IC9501 DIR/CODEC (AK4586) IC9101 SPEKER relay (port) OVERLOAD DETECT AMP ERROR DETECT VSX-D412-K...

  • Page 68: Parts

    NECK_SEL DSP_CS PB1/CS0 PF6/A41 DSP_RST DSP_CK PB2/SCK0 PF5/A42 9164_CS DSP_SI PB3/SI0 PF4/A43 T_MUTE DSP_SO PB4/SO0 PF3/A44 T_POWON MVOL_ATT PB5/SCK1 PF2/A45 ST_EVR PB6/SI1 PF1/A46 FM+(RDS) PLL_DO PB7/SO1 PF0/A47 CDC_RST AVREF PD7/A48 DSP_MT KEYIN1 PA1/AN0 PD6/A49 9273_CS KEYIN2 PA1/AN1 PD5/A50 D_MUTE VSX-D412-K...
  • Page 69 Strobe for E-volume (TC9459) of SB 9459_ST MVRATT ATT control of master volume for E-volume (less than -15dB : L) SYS_DT Data signal for communication with M62446, TC9163, TC9164 and PLL SYS_CK Clock signal for communication with M62446, TC9163, TC9164 and PLL VSX-D412-K...
  • Page 70 Segment output 3 − Segment output 2 Segment output 1 Not used Not used (Fixed Vfdp) Grid output 10 Grid output 9 Grid output 8 Grid output 7 Grid output 6 Grid output 5 Grid output 4 Grid output 3 VSX-D412-K...
  • Page 71 7 AK4586VQ (DD & INPUT ASSY : IC9101) • 96kHz 24Bit 6-channel CODEC with DIR Pin Arrangement (Top View) Block Diagram VSX-D412-K...
  • Page 72 Pin / Function VSX-D412-K...
  • Page 73 Pin / Function VSX-D412-K...
  • Page 74 7, 22 L5,R5 Input and Output 8, 21 L6,R6 9, 20 COM2 10, 19 L7,R7 21, 18 L8,R8 26, 17 COM3 L-COM2 R-COM2 Digital Ground Clock Input DATA Data Input Strobe Input Plus Power Supply L-COM3 R-COM3 Control Circuit DATA VSX-D412-K...
  • Page 75 7 PD8104A (D.D & INPUT ASSY : IC9504) • 4Mb P2ROM Pin Arrangement (Top View) Block Diagram VSX-D412-K...
  • Page 76 Lch Negative Analog Output Pin AOUTL+ Lch Positive Analog Output Pin Ground Pin Power Supply Pin DZFR Rch Data Zero Input Detect Pin DZFL Lch Data Zero Input Det ect Pin Note: All input pins should not be left floating. VSX-D412-K...

  • Page 77: Display

    Neo:6 • Grid Assignment DIGITAL MONITOR SIGNAL AUTO SB DIRECT RF ATT PRO LOGIC ∏ Re-EQ TUNED DIGITAL MIDNIGHT STEREO DIGITAL MPEG LOUDNESS MONO ADV.SURR. SP £ AB Neo:6 ANALOG DTS MPEG • Segment Designation (9G to 2G) (1G) VSX-D412-K...
  • Page 78 6) Field of vision is a minimum of 21.8° from the lower side. • Anode Connection RFATT AUTO √ DIGITAL TUNED ANALOG DIGITAL (L) MPEG MPEG DIGITAL (R) PROLOGIC ∏ Neo:6 ADV.SURR. Re-EQ DIRECT MIDNIGHT LOUDNESS MONITOR STEREO MONO VSX-D412-K...

  • Page 79: Panel Facilities

    MULTI JOG/INPUT SELECTOR dial. 12 MPX Press the MPX button to receive a radio broadcast in mono. 21 QUICK SETUP 22 MASTER VOLUME When the headphones are connected, there is no sound output from the speakers. VSX-D412-K...
  • Page 80 Depending on your level settings you make for each channel, Lights when source direct playback is in use. Direct playback the maximum level can range between –10 dB and –0 dB. bypasses the tone controls and channel levels for the most accurate reproduc-tion of source. VSX-D412-K...

  • Page 81: Remote Control

    These buttons are also used to control DVD menus/options. ADVANCED SURROUND Use to switch between the various surround modes. STEREO Switches direct playback on or off. Direct playback bypasses the tone controls and channel levels for the most accurate reproduction of a source. VSX-D412-K...

  • Page 82: Rear Panel

    Use to add or subtract the amount of effect in different sound modes or advanced listening modes. 15 DVD CONTROL buttons You can use these buttons to control a Pioneer DVD player connected to your system. Rear Panel DIGITAL IN...

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