MULTI JOG DVD/LD TV/SAT VCR/DVR VIDEO ENTER CD-R/ TAPE/MD

AUX MASTER VOLUME

STANDBY

STANDBY/ON

PULL OPEN

PHONES

ORDER NO.

RRV2731

VSX-D712-K
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
VSX-D712-K VSX-D712-K KUXJI KCXJI

AC120V AC120V

Power Requirement

Remarks

For details, refer to "Important symbols for good services".
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-ZZK FEB. 2003 printed in Japan

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. If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician.
WARNING This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to cause cancer, birth defects or other reproductive harm. Health & Safety Code Section 25249.6 Proposition 65
NOTICE (FOR CANADIAN MODEL ONLY) Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts must be of identical designation. REMARQUE (POUR MODLE CANADIEN SEULEMENT)

Les symboles de fusible

(fusible de type rapide) et/ou
(fusible de type lent) sur CCI indiquent que
les pices de remplacement doivent avoir la mme dsignation.
(FOR USA MODEL ONLY) 1. SAFETY PRECAUTIONS
The following check should be perfor med for the continued protection of the customer and ser vice technician.

LEAKAGE CURRENT CHECK

Measure leakage current to a known ear th ground (water pipe, conduit, etc.) by connecting a leakage current tester such as Simpson Model 229-2 or equivalent between the ear th ground and all exposed metal par ts of the appliance (input/output terminals, screwheads, metal overlays, control shaft, etc.). Plug the AC line cord of the appliance directly into a 120V AC 60 Hz outlet and turn the AC power switch on. Any current measured must not exceed 0.5 mA.
ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER. 2. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the appliance have special safety related character istics. These are often not evident from visual inspection nor the protection afforded by them necessarily can be obtained by using replacement components rated for voltage, wattage, etc. Replacement par ts which have these special safety character istics are identified in this Service Manual. Electr ical components having such features are identified by marking with a on the schematics and on the parts list in this Service Manual. The use of a substitute replacement component which does not have the same safety characteristics as the PIONEER recommended replacement one, shown in the parts list in this Service Manual, may create shock, fire, or other hazards. Product Safety is continuously under review and new instructions are issued from time to time. For the latest infor mation, always consult the current PIONEER Service Manual. A subscription to, or additional copies of, PIONEER Ser vice Manual may be obtained at a nominal charge from PIONEER.
Device under test Test all exposed metal surfaces

Leakage current tester

Reading should not be above 0.5 mA
Also test with plug reversed (Using AC adapter plug as required)

Earth ground

AC Leakage Test
[ Important symbols for good services ]
In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely. When you find the procedures bearing any of the symbols, be sure to fulfill them:

1. Product safety

You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and should keep the safety during servicing by following the safety instructions described in this manual.

(2) CONTRAST TABLE VSX-D712-K/KUXJI and VSX-D712-K/KCXJI are constructed the same except for the following:
Mark NO 13 Symbol and Description Operating Instructions (French)
VSX-D712-K/ KUXJI Not used
VSX-D712-K/ KCXJI XRC3078

2.2 EXTERIOR SECTION

23 U 10

25 L K 11 12

28 I A

D 32 F 55 55

T 55 B

55 F 39 55

C B B A
Refer to "2.3 FRONT PANEL SECTION". 40 55
NON-CONTACT SIDE CONTACT SIDE
EXTERIOR SECTION parts List
Mark No. 33 NSP 38 NSP 45 NSP Description MAIN Assy DSP Assy AMP Assy TRANS2 Assy TRANS3 Assy REGULATOR Assy AMP INPUT Assy TRANS1 Assy VIDEO Assy 6CH IN Assy BOARD TO BOARD Assy S. VIDEO Assy DIGITAL IN Assy COMPONENT Assy FM/AM TUNER MODULE FU1 Fuse (10A) FU701 Fuse (10A) T1 Power Transformer AC Power Cord Cord Stopper J36 23P F.F.C/30V J38 5P F.F.C/30V J33 11P F.F.C/30V J48 9P F.F.C/30V J34 13P F.F.C/30V J43 19P F.F.C/30V J31 17P F.F.C/30V J35 19P F.F.C/30V J37 10P F.F.C/30V Heatsink R6A CORR H/S Angle Rear H/S Angle Front PCB Angle R5 PCB Mold Under Base R6 Insulator REG Support R6 Rear Panel 712K Bonnet HOLDER Assy FFC Holder R6 Shield A R6 FFC Cover R6 Part No. XWK3091 AWX1083 XWZ3666 XWZ3682 XWZ3686 XWZ3675 XWZ3677 XWZ3680 XWZ3644 XWZ3649 XWZ3664 XWZ3660 Mark No. 58 > 59 NSP 60 Description

Part No.

Spacer Screw Screw 3x23 Screw Screw Screw Screw Vjack Spacer R6 FU2 Fuse (8A) ICP Label
AEB7092 BBZ30P200FMC ABA7043 FBT40P080FZK BBZ30P080FZK BPZ30P080FZK FBT40P080FZK XEC3038 REK1086 XAX3319
XWZ3657 XWZ3661 AXQ7231 REK1087 REK1087 XTS3058 ADG7024 CM-22C XDD3102 XDD3104

> > > >

XDD3123 XDD3124 XDD3122 XDD3126 XDD3118 XDD3101 XDD3127 ANH7112 ANG7252 ANG7251 XNG3073 AMR2533 XNA3012 PNW2766
XNG3093 XNC3186 XZN3126 XWZ3692 XMR3072 XNG3068 XMR3060

2.3 FRONT PANEL SECTION

Lubricating Oil GYA5 R O M 16 34
FRONT PANEL SECTION parts List
Mark No. 9 NSP 34 NSP 35 Description FRONT ASSY R. ENCODER Assy POWER SW Assy FRONT VIDEO Assy H.P. Assy Pioneer Badge B Select Knob Volume Knob C Ring DIM 8.1 FRT Panel BN Cover D Panel R6 W Cushion LED Lens Panel Stay Earth Plate R5 HP Door Spring R6 J29 8P Shield Cable Door Door Cover Holder L R6 Damper Assy Push Rivet Earth Plate FI R6 Screw Screw Screw Energy Star Label Part No. XWZ3648 XWZ3652 XWZ3651 XWZ3655 XWZ3654

XAM3006 XAB3023 XAB3025 XBH3016
XMB3096 XAK3355 XAK3348 XED3001 PNW2019 XMB3093 XNG3066 XBK3002 XDX3012
XAK3356 XAK3358 XMR3059 XXA3025 AEC7025 XNG3091

XBA3010 BBZ30P080FZK

PPZ30P100FMC AAX7876
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST".

CN201 7

CNCNIC101 BD3841FS (FUNCTION SEL)

IC102 NJM2100M 44

3 CN901

1 CN14 26

CN8007 IC8401 (CODEC) AK4529VQ 23 (ADC) (DAC) 31
uPC4570G2 (LPF) IC105 ICIC1

(DIR) IC8201 AK4114VQ

IC8501 MOTOROLA DSP (for DECODE)

3 IC52

1 CN1901

1 CN8017

IC8601 IS61LV6416 -12T(S-RAM) IC8602 IS63LV1024 -12T(S-RAM) IC8603 PD8116A (ROM)

ICCNCN109

IC303 1

CN307 3

Y 13 12
IC551 TC74HC4053 (COMPOSEL) 14

NJM2595M

(Y SEL)

COMPONENT1 Cb

CN901 CN354
3 IC351 NJM2595M (C SEL) 11 1

COMPONENT2 Cb

ICNJM2581M

COMPONENT OUT Cb

1551 6

14.1/24.1 14.2/27.3

CN702 IC110 uPC4570G2 (PRE AMP) CN106

CN601 1

Q603 IC108 BD3813FS

Q601 IC24 IC602 26

QICstby Q651 ICRY752

ICIC109 DB3812F 1

20 CN111

1 CN302

QIC18 CNCN302

Q5 CN3 IC301

POWER AMP IC601, IC602
+BVH -BVH NECK+B NECK-B +BVL D702 -BVL FL AC RY51 AC IN T1 POWER TRANSFORMER

Q701 Q702 D701

CN101 U+5V IC51 D51-D54 T51
(COMPONENT SEL) NJM2595M CN301 11
FL AC +12V IC801 IC802 IC803 IC804 D801D804 D721D724
CN101 -12V D+5V CN101 A+5V
3.2 OVERALL WIRING CONNECTION DIAGRAM
R.ENCODER ASSY (XWZ3652) FRONT VIDEO ASSY (XWZ3655)

FRONT ASSY (XWZ3648)

AMP INPUT ASSY (XWZ3677)

DSP ASSY (AWX1083)

B B 1/2, B 2/2

MAIN ASSY (XWK3091)

S. VIDEO ASSY (XWZ3660)
BOARD TO BOARD ASSY (XWZ3664)

A A 1/3, A 2/3, A 3/3

DIGITAL IN ASSY (XWZ3657)

VIDEO ASSY (XWZ3644)

REGULATOR ASSY (XWZ3675)
FM/AM TUNER MODULE 6CH IN ASSY (AXQ7231) (XWZ3649)

H.P. ASSY (XWZ3654)

POWER SW ASSY (XWZ3651)

TRANS3 ASSY (XWZ3686)

TRANS2 ASSY (XWZ3682)

TRANS1 ASSY (XWZ3680)

AMP& PRIMARY ASSY (XWZ3666)

C C 1/2, C 2/2

COMPONENT ASSY (XWZ3661)

ADG7024

3.3 MAIN ASSY (1/3)

Q CN901

A 1/3 A

A 2/3 A 2/3 A 2/3

A 2/3 A 3/3

A 1/3 MAIN ASSY

(XWK3091)
: The power supply is shown with the marked box.

3.4 MAIN ASSY (2/3)

A 2/3 MAIN ASSY

A 2/3 A

G CN254 A 3/3

3.5 MAIN ASSY (3/3)

W CN201

VSX-D712/KU

A 3/3 A

M CN401

A 3/3 MAIN ASSY

A 1/3 A 2/3

A 2/3 B 2/2 CN8012

3.6 DSP ASSY (1/2)

CN1901

NO USE

B 1/2 A

NO USE VSX-D712-K

AWX1083 : NO USE

B C D E

B 1/2 DSP ASSY

(AWX1083)

3.7 DSP ASSY (2/2)

B 2/2 A

A 3/3 CN112

B 2/2 DSP ASSY

3.8 AMP & PRIMARY (1/2), TRANS2 and TRANS3 ASSYS
AMP&PRIMARY ASSY (XWZ3666)

G CN253

KUXJI, KCXJI KUXJI, KCXJI KUXJI, KCXJI

KUXJI, KCXJI

CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 49101.6 FOR IC853 MFD, BY LITTELFUSE INC.

POWER TRANSFORMER

REK1087 (10A)
CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. ICP-N10 FOR IC701 AND IC702 MFD, BY ROHM CO., LTD. CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 49101.6 FOR IC851 AND IC852 MFD, BY LITTELFUSE INC. CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491001 FOR IC603 MFD, BY LITTELFUSE INC. CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491010 FOR IC604, IC605, IC606, AND IC607 MFD, BY LITTELFUSE INC.

NO USE NO USE

: AUDIO SIGNAL ROUTE
NOTE FOR FUSE REPLACEMENT CAUTION - FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE WITH SAME TYPE AND RATINGS ONLY.

C8008 C8216 R8334 L8505 C8553 C8552 R8338 R8547 R8548 R8549 IC8503 8

L8003 R8003

C8409 C8410 C8411 C8412 C8413 C8414 C8416

R8538 D8502

R8415 R8417 R8806 R8807

C8402 C8403 C8401 C8009

R8558 R8340 R8341 D8301 D8302 R8343 R8344 R8321 R8320
C8417 C8501 C8502 R8532 R8018 C8007 R8544 R8542

R8546 R8545

R8322 R8308

L8701 C8555 R8808

R8505 R8504 R8555 R8507 R8508 R8509 R8510 C8544 C8542 GNDD C8540

R8809 L8801

R8518 R8517 R8516 R8515 V11 R8528 R8529
R8526 C8517 R8527 R8520 C8514 R8523 R8309 C8520 R8310 C8521 R8311

R8312 R8313 R8314 R8326

C8539 C8538

AWX8253 AWX8254

AWX8255

AWX8239

C8534 C8535 R8603 L8602 C8531

R8537 L8502

AWX8250

AWX1082 AWX1083

R8801 R8812 R8811 R8813 R8602

IC8602

AWX8241

AWX8251 AWX8252

C8014 C8013

AWX8240

C8606 C8605

C8608 C8607

IC8902

IC8503 IC8101 Q8503

4.5 AMP & PRIMARY and AMP INPUT ASSYS

Q252 D253

3 R266

CN252 R265

8 C252
AMP INPUT XWZ3677 XWZ3678

W609 W611

FL GNDA FR GNDA SL GNDA SR W613 GNDA C W614 A.MUTE W684 ATT B.DET OL Q258 DC D254 NECK R268 GNDU 1 Q257
A.MUTE SB GNDA SR GNDA SL GNDA FR GNDA FL GNDA GNDA C W606

1 CN255

-12V GNDU +12V

A CN106

D5SBA20

R706 R705

ICP-N10

Q702 Q703

J6 RED

2 D701

E J6 E J7

R702 C706

Q702 R704 Q703

GRAY BLUE J8 J701 GRAY

BOND W572 W550 R701 W578 R707 W574 W573 R708 C705 R703

W576 W575

H702 W579 W580 W5

J7 WHITE

VLW559 C703 W560

IC701 Q701

Q701 W555 W557 W556
NECK+ NECKW554 W553 C701 W552 W551 R670 R672 R674 Q631 C631 Q632 R673 D652 Q655 R671 D651 D631
Q631 Q632 Q691 Q692 Q633 Q604 Q606 Q656 Q654 IC606 Q652 Q602 Q605 Q651 Q603 IC604 IC605 IC607 IC601 IC602 Q653

C691 R16 Q691 Q692

C638 C634 W539 W535 W534 W536 W537 W538 W540

C604 R610 C606

C665 R633

NECK+ NECK-

C692 D653 W529

C662 C632 R635

OL B.DET ATT AMUTE C GNDA SR GNDA SL GNDA FR GNDA FL

R634 C633

DC DET.
Q654 W761 R665 R652 C657 R658

491010

R608 W515 R605 C602 R604 R609 C611 Q602 R602 C612

W510 W511

R639 R638

C637 W504

R644 D634 D1
C613 Q601 R613 R607 R601 W22

IC602 word surface

C614 W508

W502 W505

C601 Q603

GNDU NECK DC

W541 W
RISK OF FIREREPLACE FUSE AS MARKED.
5 GNDU NECK DC OL B.DET ATT

FAN+ FAN- 4 IC251 STOP

Q252 Q254 Q255 Q256 IC251 Q253 Q251

Q256 W627 R264

G AMP INPUT ASSY

Q257 Q258

AMP&PRIMARY ASSY

BOND Q704 W683

D5SBA2

SECONDARY

R51 T51
RISK OF FIRE-REPLACE FUSE AS MARKED. J1

J2 BLUE

KN51 C57 C55

SIDE A H J2 H J1

H54 H56

491.500

52 W670

W667 C51

D52 W661 D53 W662
W649 C53 R53 D55 L51 CN51

R52 DRY51

RED BLACK
W637 W638 W639 W641 W640 1
D58 Q51 W635 CW634 C711 H51 H52

D 851 R 1551

FLAC FLAC REG REG REG DREG
D711 C712 D712 RY754 C767

D757 W615

E J5 E J4

REAR Lch

R762 L762

J5 WHITE

J4 RED

W581 W582

D756 W585 W584 W583 W588 W587 W586 W732 W733 W590 D755

H702 W579

RETURN AMP G

W589 W592 RY752

W563 W564 C704

C703 W559 W560

W569 W568 W567 W562 W561 W565 W566
R606 RR604 R609 C611 Q602 Q604

CAUTION

C615 R623

R616 D604

L752 W525 W521 W523 W524 W520 R622

FRONT Rch

C757 W737

FRONT Lch

C751 C753
REPLACE IC LINKS AS MARKED.MFD. BY ROHM CO. LTD.

CENTER

COMME INDIQUE. REMPLACER LE IC LINKS DE CHEZ ROHM CO. LTD.

L751 C759 R756

C756 W571

C610 C608

R615 D606
REPLACE IC LINKS AS MARKED.MFD. BY LITTELFUSE INC.

D723 D721

R602 W516 C612 R610 W517 C606 R611 R617

R752 D751 W526

DR627 1

491001

01 W509
DREG DREG DREG DREG REG REG GND GND REG REG AC1 AC2 -VF W UP ACRY U+5V GNDU GNDU A RY +12V B RY HP SW R/CRY

VLVL+ VH-

AMP&PRIMARY XWZ3666 XWZ3667 XWZ3668 XWZ3695

R758 CN753 L753

W570 R755 C760
HP L HP G HP R MUTE HP SW U GND

W596 W735

REAR Rch

CN752 CN754 C766

THIS PRODUCT CONTAINS LEAD IN SOLDER AND CERTAIN ELECTRICAL PARTS CONTAIN CHEMICALS WHICH ARE KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER, BIRTH DEFECTS OR OTHER REPRODUCTIVE HARM. WASH HANDS AFTER HANDLING. HEALTH & SAFETY CODE SECTION 25249.6 - PROPOSITION 65
W617 RY753 C762 W618 C765

WARNING

W616 R761

C761 R763

COMME INDIQUE. REMPLACER LE IC LINKS DE CHEZ LITTELFUSE INC.

C421 R401 C451 R422 R451

C417 C418

QUICK SETUP R458

R457 TONE

R456 SBch MODE

R455 SPEAKER MIDNIGHT/ LOUDNESS

R453 SIGNAL SELECT

R452 STEREO/ DIRECT
1 LED 2 ENTER 3 FENC A 4 FENC B 5 GNDU 6 VENC B 7 VENC A 1

C415 C414 1

483 C482

R529 R528

Q441 Q442 Q484
52 STEREO/ DIRECT ADVANCED SURROUND STANDARD R460 R461 R469 TUNING +
Q1551 R1557 L R C1551 R1556 C1552

C1557 C1558 C1556

HP GND

Q1552 C1555 C1554 C1553

POWER R505

R425 R472 C454

R459 R423 C452
R467 R462 TUNING R463 STATION + R464 STATION R471 R466 R465 R468 R470 INPUT ATT MPX BAND CLASS TUNER EDIT
POWER SW & FUNCTION ASSY XWZ3651
5 GNDU 4 STBY LED 3 FUNCA 2 GNDU 1 FUNCAV R502 VIDEO VCR/DVR R503

TV/SAT

R507 R508 R506

CDR/TAPE

4.7 BOARD TO BOARD, DIGITAL IN, VIDEO and 6CH IN ASSYS

T DIGITAL IN ASSY

10 OPTD+5V 8 GNDD 7 FRONT OPT 6 GNDD 5 GNDD 4 OPT3 (NC) 3 GNDD 2 GNDD 1 OPOUT

J 6CH IN ASSY

B CN8017
WSHIELD 4 D+5V 3 GNDD 2 SHIELD 1 FRONT OPT

XWZ3649 XWZ3650

CN1902

6 CH. IN

23 W176 JA351 W167 WJA305 C309 CN306 -12V ADG +12V uG SW.OUT AG SB OUT W191 W190 CN304 W3

A CN105

I VIDEO ASSY
4053INH 4053A FURNITURE RMC SRIN SROUT SWDET AMUTE V3 V2 V1 CN303

W139 W169 C338

C310 W203 W210 W204 CN302

F CN803

R 31 3

CN301 CN390

BOARD TO BOARD HCI40HI

K BOARD TO BOARD ASSY

XWZ3664
CN7 FRONTV VIDEO3 VIDEO2 VIDEO1 V-5.6V ADG V+5.6V

L CN351 U CN551

I J K T
SR AG SL 12V SW -12V SB AG C

9 CN307

JA1901 W234

JA1902 W235

DIGITAL IN XWZ3659 XWZ3658 XWZ3657

CN1901 C1904

KN1901

W140 W141 W173 W171 W172

V+5.6V W757 ADG

+5V W192 ADG -5V

XWZ3644 XWZ3645 XWZ3646 XWZ3647

4053INH

4053A V-5.6V

V+5.6V

FRONT V V1

V1 FRONT V

V-5.6V 4053A

ADG 4053INH

4053A 4053INH V-5.6V ADG V+5.6V

XWZ3665

C319 C318 IC302 C8 CRCR1351 C1352 IC304

C317 R331 R334 R332

SR AG SL C1365 12V SW -12V SB AG C

8 R1353

C1351 R349 R347

C1362 R1352

R387 R388 SB C380 Q304 Q303 C333

C335 R319

R314 D303

R389 R318 R390

SW R317

LD/DVD

C334 R315
MONI. R392 C306 R305 TV C347 D301 C340 D302 CG R306 C302 C305 REC R303 C8 G

DIGITAL IN HCI40HI

XWZ3659 XWZ3658 XWZ3657
C1909 / R1903 C1908 RR310 R391 G

4053A 4053INH V-5.6V ADG V+5.6V 4053A FRONT V V3 V2 V1 V-5.6V V3 V2 V1 V-5.6V 1 ADG ADG V+5.6V
V3 FRONT V 4053A 1 4053INH
4053INH 4053A FURNITURE RMC SRIN SROUT SWDET AMUTE V3 V2 V1

XWZ3644 XWZ3645

R393 C378

L304 FURN. SR IN

V+5.6V 5

XWZ3664 XWZ3665

XWZ3646 XWZ3647

R312 ADG -5V V1 V2 D307

Q304 Q303 IC301

CN392 CN391

SR OUT L302 D306 D305 R304 R311

BOARD TO BOARD

C311 C313
1 F.OPT 2 SHIELD 3 GNDD 4 D+5V 5 SHIELD

C1907 C377 C1906

4 R337 IC303

C1901 R1901

C325 R340

R1354 C1361

6 CH IN
-12V ADG +12V uG SW OUT AG SB OUT
4.8 S. VIDEO, FRONT VIDEO and COMPONENT ASSYS

U COMPONENTASSY

OUT OUT

TV/SAT 1 5

VCR PLAY

VCR REC 6

MON12 5

Y C352

C C355

CN353 CN352 C358

L S. VIDEO ASSY

XWZ3660 HCI40HI

S.VIDEO
W181 W147 W179 W180 W146 W145

ADG Y C V

W178 W+5V ADG -5V V1 V2 V3 F.V 7 CN7

FRONT VIDEO

Q FRONT VIDEO ASSY

XWZ3655 XWZ3696

F.C ADG F.Y F.V ADG F.L AG F.R

K CN391

A CN107 L CN354
WA 4053 INH V-5.6V ADG V+5.6V W132

JA553 W131 C553

COMPONENT VIDEO PRODUCTION CODE

XWZ3661

W160 W158 W159 W124 W150 W151
W135 W122 W123 W163 W162 W154 W125 W128 W127 W129 W130 W161 W155 C551 W156 W121 W148 W184 W149

W134 C552

W195 W194

+5V ADG -5V V1 V2 V3 F.V

R367 R363 R364 R366 C375 R365

D351 R362 R358 D352 R385

R360 R361

D354 D353

C351 16
R368 R369 R357 C376 C370 R374

XWZ3660

CRC367 R8

R351 C353 Y C

R353 C356 Y C
R355 C359 C372 Y C Y C Y C365

R381 C368

R382 C369

R383 C364

R386 1

COMPONENT VIDEO

D552 5
4053 A 4053 INH V-5.6V ADG V+5.6V

IC16 R553 9

D551 R558 C560 C559 C558 R552

8 R554 C562 R14 8

IC552 C555
R578 R572 C557 Y1 R567 Y2
C556 R571 Y out C568 Cr out C565 C564 R580 Cb out R564

Cr1 Cr2

Cb2 R568 R565

IC551 IC552

C915 R904

VCR REC

IC352 IC351

E D C A F

16 C561

4.9 FM/AM TUNER MODULE

W FM/AM TUNER MODULE

A CN103

(ANP7338-B)
Q201 IC201 Q203 IC202 Q205 Q204

5. PCB PARTS LIST

NOTES: Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List. The 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. When ordering resistors, first convert resistance values into code form as shown in the following examples. Ex.1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by J=5%, and K=10%). x RD1/4PU 1 J 561 47k RD1/4PU 3 J 47 x 473 0.5 RN2H R K RRS1P 1 R 0 K 1R0 Ex.2 When there are 3 effective digits (such as in high precision metal film resistors). 5.62k 562 x 5621 RN1/4PC F

Mark No.

Description

LIST OF ASSEMBLIES

1.MAIN ASSY 1.DSP ASSY NSP 1.AMP & PS ASSY 2.AMP & PRIMARY ASSY 2.REGULATOR ASSY 2.AMP INPUT ASSY 2.TRANS1 ASSY 2.TRANS2 ASSY 2.TRANS3 ASSY 2.HOLDER ASSY 1.COMPLEX ASSY 2.VIDEO ASSY 2.FRONT ASSY 2.6CH IN ASSY 2.POWER SW ASSY 2.R. ENCODER ASSY 2.H.P. ASSY 2.FRONT VIDEO ASSY 2.DIGITAL IN ASSY 2.S. VIDEO ASSY 2.COMPONENT ASSY 2.BOARD TO BOARD ASSY 1.FM/AM TUNER MODULE XWK3091 AWX1083 XWK3082 XWZ3666 XWZ3675 XWZ3677 XWZ3680 XWZ3682 XWZ3686 XWZ3692 XWK3075 XWZ3644 XWZ3648 XWZ3649 XWZ3651 XWZ3652 XWZ3654 XWZ3655 XWZ3657 XWZ3660 XWZ3661 XWZ3664 AXQ7231

SEMICONDUCTORS

IC109 IC108 IC101 IC102 IC9001 IC103IC107, IC110IC112, IC115 Q5001 Q165, Q166, Q321, Q322 Q341, Q342, Q361, Q362, Q395 Q229, Q230 Q167, Q231, Q9002-Q9005 Q232 Q168, Q9001,Q9006 Q9007 D103D108, D229, D230, D301 D311, D312, D5001,D9001-D9013 D101, D102 D331, D332 BD3812F BD3813KS BD3841FS NJM2100M PD5837A UPC4570G2 2SC2412K 2SC3326 2SC3326 2SK208 DTA124EK DTC124EK DTC143EK DTC143TK 1SS355 1SS355 RB501V-40 UDZS6.8B

NSP NSP NSP NSP

COILS AND FILTERS
L9001,L9002 CHIP SOLID INDUCTOR ATL7002 L9003 LFEA2R2J L101L104, L111, L112, L5002 QTL1013 CHIP SOLID INDUCTOR

CAPACITORS

C9003 (0.22F/5.5V) C101C114, C151, C152 C163, C164, C181C192 C197, C198, C243, C244, C263 C284, C313, C314, C317, C318 ACH7144 CCSRCH101J50 CCSRCH101J50 CCSRCH101J50 CCSRCH101J50 CCSRCH101J50 CCSRCH101J50 CCSRCH220J50 CCSRCH331J50 CCSRCH331J50 CCSRCH471J50 CEANP4R7M50 CEAT100M50 CEAT100M50 CEAT100M50 CEAT100M50 CEAT100M50 CEAT100M50 CEAT101M16 CEAT221M6R3

COMPLEX ASSY

OTHERS
J 41 JUMPER WIRED J 42 JUMPER WIRED J 47 JUMPER WIRED D15A05-075-2651 D15A07-075-2651 D20PYY0630E
C323, C324, C343, C344, C363 C386 C1031,C1041,C117, C118 C205C208, C245C248, C265 C267, C286, C288 C203, C204 C366 C121C128, C131C142 C167, C168, C209, C210 C213, C214, C249, C250 C269, C270, C290, C301C306 C321, C322, C341, C342 C361, C362, C380, C382, C384 C5007 C169, C9002

CN106, CN112 7P CONNECTOR JA101JA104 PIN JACK(4P) CN107 CONNECTOR POST CN109 18P SOCKET CN111 20P SOCKET 101103 PCB BINDER X9001 CERAMIC RESONATOR (15.7 MHz)
IC8201 IC8401 IC8501 IC8601 IC8602 IC8901 IC8902 IC8603 IC8101 IC8701 AK4114VQ AK4529VQ DSPD56367PV150 IS61LV6416-12T IS63LV1024-12T NJM2391DL1-33 NJU7223DL1-18 PD8116A TC74HCU04AF TC74LVX244FT
R8506 R8201 Other Resistors RAB4C101J RS1/16S1802F RS1/16S###J
CN8012 19P CONNECTOR JA8101 2P PIN JACK CN8003 13P SOCKET CN8007 19P SOCKET JA8102 OPT. LINK IN CN8017 10P CONNECTOR X8501 CRYSTAL RESONATOR 52045-1945 AKB7131 AKP7070 AKP7073 GP1FA513RZB VKN1414 VSS1171

XSS3003

CKPUYB331K50 CKPUYB331K50 CKPUYF103Z25 XCH3012 XCH3013
(20 MHz) X8201 CRYSTAL RESONATOR (24.576 MHz)
C603, C604, C632, C653, C654 C682 C55C57 C703, C704 (3300/42V) C701, C702 (4700/71V)

C AMP & PRIMARY ASSY

> IC603 PROTECTOR(1A) > IC604IC607 PROTECTOR(125mA)
IC701, IC702 PROTECTOR(400mA) IC51 > IC601, IC602 Q703 Q702 Q696, Q697 Q704 Q605, Q606, Q633, Q655, Q656 Q683 Q601Q604, Q631, Q632 Q651Q654, Q681, Q682 Q701 Q51 D56, D601, D603, D606, D608 D631, D632, D651D654 D683, D684, D752, D754, D758 > D701, D702 D602, D604, D681, D682 D711 D58 D712 > D51D55, D721D724 AEK7009 AEK7022 ICP-N10 NJM78M56FA PAC011A 2SA1145 2SA1837D1 2SC1740S 2SC1845 2SC2240 2SC2240 2SC2878 2SC2878 2SC4793D1 KRC101M 1SS133 1SS133 1SS133 D5SBA20(B) MTZJ16A MTZJ22D MTZJ5.1A MTZJ5.1B S5688G
> R51 (2.2M/ 1/2W) > R52 > R615 > R751, R752, R755, R761, R762 > R772 > R753, R754, R756, R763, R764 > R771 > R711 > R617, R622, R639, R667, R668 > R691 (0.22/5W)
Other Resistors RCN1080 RD1/2PM270J RD1/4PU331J RD1/4PUF101J RD1/4PUF101J RS1LMF4R7J RS1LMF4R7J RS2LMF392J XCN3001 XCN3001 RD1/4PU###J
CN604 7P CONNECTOR CN53 23P CONNECTOR CN702 6P JUMPER CONNECTOR CN751 SPEAKER TERMINAL 8-P CN753 SPEAKER TERMINAL 6-P CN752 SPEAKER TERMINAL 4-P 51 AC SOCKET 1-P H51, H52, H701, H702 FUSE CLIP > T51 STANDBY TRANSFORMER CN601 18P PLUG 52045-0745 52045-2345 52147-0610 AKE7074 AKE7075
AKE7076 AKP1060 AKR7001 ATT7043 KM200TA18

> L51 LINE FILTER

L751L754, L761, L762 COIL ATF7018 ATH1004
CN51 AC CODE SOCKET RKP1751 KN51, KN601 EARTH METAL FITTING VNF7P CABLE HOLDER XKP3047

SWITCHES AND RELAYS

RY751RY754 > RY51 XSR3002 XSR3003

D307 D303, D304

L301L304 CHIP SOLID INDUCTOR QTL1013
C347 C380 C307C310, C312, C314, C338 C1360,C302, C379 C339, C340 C304C306 C333 C311, C313 CCSRCH470J50 CCSRCH331J50 CEAT470M25 CKSRYB103K50 CKSRYB104K25 CKSRYB221K50 CKSRYB331K50 CKSRYB473K25
CN353 CN352 CN354 CN351 2-4P MINI DIN SOCKET 3-4P MINI DIN SOCKET CONNECTOR POST 7P SOCKET AKP7020 AKP7043 B5B-PH-K KP200TA7L
IC401 Q484 Q441, Q442 D403D405 D401, D402 PE5346A 2SA1037K DTC124EK 1SS355 DAN202K

Mark No. OTHERS

51063-0505

501 CABLE HOLDER (5P)

C901, C902, C915, C916 C903, C905 C908, C911, C914 C904, C906, C909, C912 C907, C910, C913 CCSRCH101J50 CEAL470M25 CKSRYB103K50 CKSRYB104K25 CKSRYB471K50

L401 LFEA2R2J

RESISTORS SWITCHES AND RELAYS
S451S469 ASG7013 All Resistors RS1/16S###J

OTHERS CAPACITORS

C482, C483 C481 C442 C403 C405 C412 C415, C451C454 C401, C402, C404, C410, C411 C419, C441 C418, C421 C420 CCSRCH221J50 CCSRCH471J50 CEAL470M10 CEAT221M6R3 CEAT470M10 CEAT470M50 CKSRYB102K50 CKSRYB103K50 CKSRYB103K50 CKSRYB104K16 XCH3011 JA902 PIN JACK (4P) AKX7014

R H.P. ASSY

Q1551,Q1552 2SC3326
C1554,C1557 C1553,C1556 C1555,C1558 C1551,C1552 CCSRCH471J50 CKSRYB103K50 CKSRYB104K16 CKSRYB223K50
> R1553,R1554 > R1551,R1552
Other Resistors RS1LMF151J RS2LMF331J RS1/16S###J
471 CABLE HOLDER (5P) 404 CABLE HOLDER (7P) CN401 17P CONNECTOR CN402 9P CONNECTOR V401 FL TUBE X401 CERAMIC RESONATOR (5 MHz) 401 REMOTE RECEIVERUNIT 51063-0505 51063-0705 52044-1745 52492-0920 XAV3018 VSS1142 GP1UM28XK
1551 6P CABLE HOLDER JA1551 HEADPHONE JACK KN1551 EARTH METAL FITTING 51048-0600 RKB1014 VNF1084

F1901 CHIP BEAD DTF1067

R. ENCODER ASSY

ASG7013 XSX3005 XSX3006

S511 S513 ROTARY ENCODER S512 ROTARY ENCODER
C1907,C1909 C1904 C1908 C1903,C1906 C1902,C1905
CCSRCH101J50 CEAL101M10 CKSRYB102K50 CKSRYB103K50 CKSRYB104K25
511 CABLE HOLDER (7P) 51063-0705
JA1902 OPT. LINK OUT 12MB/S CN1901 10P CONNECTOR KN1901 WRAPPING TERMINAL GP1FA513TZ VKN1186 VNF1084

D501 SLR-343VC(NPQ)

U COMPONENT ASSY
IC552 IC551 D551, D552 NJM2581M TC74HC4053AF 1SS355

S501S509 ASG7013

C551C554 C555C562, C566, C568 CEAT101M10 CKSRYB103K50

ANK7073 ASS1093

All Resistors

RS1/16S###J

(SHIELD CASE B) X201 CRYSTAL RESONATOR (7.2MHz) FM FRONTEND AM RF TUNING BLOCK
CN551 5P CONNECTOR JA553 3P RCA PINJACK JA551 6P RCA PINJACK 52045-0545 AKB7124 AKB7128

AXF7003 AXX7071

IC201 IC202 Q201, Q204, Q205 Q202 Q203 D201 D202 BA1451F LC72131MD 2SC2412K DTA124ES DTC124EK 1SS133 MTZJ5.1C

L201 F202 F201 F203

FM DETECTOR COIL CERAMIC FILTER CERAMIC FILTER AM CERAMIC FILTER

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. The power is shut off. Recovery The power is shut off even if the unit recovers.
3. Boad detection In the case of simultaneous detection with the overload protection circuit, Board detection is performed preferentially to DC-abnormality detection and Overload detection. When an boad erreo is detected, A.MUTE* is turned on, speaker relay is turned off, then "BOAD ERR" flashes on the display. The abnormality continues for 3 seconds. Continues. Recovery The power is shut off even if the unit recovers.

The power is shut off.

8. PANEL FACILITIES

Front panel

STATION

TUNING

SPEAKERS

SB CH MODE

QUICK SETUP
PHONES SURR. LISTENING MODE TUNER EDIT CLASS BAND MPX INPUT ATT FL DIMMER VIDEO INPUT

MULTI JOG

MULTI JOG S-VIDEO VIDEO L AUDIO R
1 STANDBY/ON Switches the receiver between on and standby. 2 Input select buttons Press to select an input source. 3 STANDBY indicator Lights when the receiver is in standby mode. 4 Remote sensor Receives the signals from the remote control.
6 MULTI JOG dial The MULTI JOG dial performs a number of tasks. Use it to select options after pressing TONE, QUICK SETUP or TUNER EDIT. 7 MASTER VOLUME
8 PHONES jack Use to connect headphones. When the headphones are connected, there is no sound output from the speakers.
9 STATION +/ buttons Selects station presets when using the tuner. 10 TUNING +/ buttons Selects the frequency when using the tuner. 11 LISTENING MODE buttons STANDARD Press for Standard decoding and to switch between the various Pro Logic II and Neo:6 options. ADVANCED SURROUND Use to switch between the various surround modes.
18 VIDEO INPUT See Connecting to the front panel video terminal. 19 FL DIMMER Use this button to make the fluorescent display (FL) dimmer or brighter. 20 INPUT ATT Use to attenuate (lower) the level of an analog input signal to prevent distortion. 21 MPX Press to receive a radio broadcast in mono. 22 BAND Switches between AM and FM radio bands. 23 CLASS Switches between the three banks (classes) of station presets. 24 TUNER EDIT Press to memorize and name a station for recall.

MULTI JOG DVD/LD TV/SAT VCR/DVR VIDEO ENTER CD-R/ TAPE/MD

AUX MASTER VOLUME

STANDBY

STANDBY/ON

PULL OPEN

PHONES

ORDER NO.

RRV2754

VSX-D712-K
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
VSX-D712-K VSX-D712-K KUXJI KCXJI

AC120V AC120V

Power Requirement

Remarks

For details, refer to "Important symbols for good services".
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-ZZK FEB. 2003 printed in Japan

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. If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician.
WARNING This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to cause cancer, birth defects or other reproductive harm. Health & Safety Code Section 25249.6 Proposition 65
NOTICE (FOR CANADIAN MODEL ONLY) Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts must be of identical designation. REMARQUE (POUR MODLE CANADIEN SEULEMENT)

Les symboles de fusible

(fusible de type rapide) et/ou
(fusible de type lent) sur CCI indiquent que
les pices de remplacement doivent avoir la mme dsignation.
(FOR USA MODEL ONLY) 1. SAFETY PRECAUTIONS
The following check should be perfor med for the continued protection of the customer and ser vice technician.

LEAKAGE CURRENT CHECK

Measure leakage current to a known ear th ground (water pipe, conduit, etc.) by connecting a leakage current tester such as Simpson Model 229-2 or equivalent between the ear th ground and all exposed metal par ts of the appliance (input/output terminals, screwheads, metal overlays, control shaft, etc.). Plug the AC line cord of the appliance directly into a 120V AC 60 Hz outlet and turn the AC power switch on. Any current measured must not exceed 0.5 mA.
ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER. 2. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the appliance have special safety related character istics. These are often not evident from visual inspection nor the protection afforded by them necessarily can be obtained by using replacement components rated for voltage, wattage, etc. Replacement par ts which have these special safety character istics are identified in this Service Manual. Electr ical components having such features are identified by marking with a on the schematics and on the parts list in this Service Manual. The use of a substitute replacement component which does not have the same safety characteristics as the PIONEER recommended replacement one, shown in the parts list in this Service Manual, may create shock, fire, or other hazards. Product Safety is continuously under review and new instructions are issued from time to time. For the latest infor mation, always consult the current PIONEER Service Manual. A subscription to, or additional copies of, PIONEER Ser vice Manual may be obtained at a nominal charge from PIONEER.

Miscellaneous

Power Requirements. AC 120 V, 60Hz Power Consumption VSX-D712.260W, 340 VA In standby. 0.5 W AC Outlet. 100 W MAX. (SWITCHED) Dimensions.420 (W) x 158 (H) x 401 (D) mm (16-9/16 (W) x 6-4/16 (H) x 15-6/16 (D) in.) Weight (without package) VSX-D712.9.0 kg (19.8 lb)

Furnished parts

AM loop antenna. 1 FM wire antenna. 1 AA/R6 dry cell batteries. 2 Remote control. 1 These operating instructions. 1
Manufactured under license from Dolby Laboratories. "Dolby", "Pro Logic", "Surround EX", and the double-D symbol are trademarks of Dolby Laboratories.
Specifications and the design are subject to possible modifications without notice, due to improvements.
* Measured pursuant to the Federal Trade Commissions Trade Regulation rule on Power Output Claims for Amplifiers. ** Measured by Audio Spectrum Analyzer.
"DTS" ,"DTS-ES Extended Surround" and "Neo:6" are trademarks of Digital Theater Systems, Inc.

Accessories

AM loop antenna (ATB7009)
FM wire antenna (ADH7004)
AA size IEC R6P Dry cell batteries (x2)
Remote control unit (VSX-D812 : XXD3051)
2. EXPLODED VIEWS AND PARTS LIST
NOTES: Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List. The 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. 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 ONLY

PACKING parts List

Mark No. 1 NSP NSP Description FM wire antenna Warranty Card AM loop antenna Dry cell batteries (AA/LR6) Operating instructions (English) Remote Control Unit Battery Cover Literature Bag Part No. ADH7004 ARY7045 ATB7009 VEM1031 XRB3020 Mark No. NSP 15 Description Packing Sheet Left Pad R6 Right Pad R6 Packing Case Operating Instructions (French) Accessory Board R6 Part No. AHG7069 XHA3134
XHA3135 XHD3325 See Contrast table(2) XHB3008

XXD3051 AZA7424 AHG1180

(2) CONTRAST TABLE VSX-D712-K/KUXJI and VSX-D712-K/KCXJI are constructed the same except for the following:
Mark NO 13 Symbol and Description Operating Instructions (French)
VSX-D712-K/ KUXJI Not used
VSX-D712-K/ KCXJI XRC3078

2.2 EXTERIOR SECTION

23 U 10

25 L K 11 12

28 I A

D 32 F 55 55

T 55 B

55 F 39 55

C B B A
Refer to "2.3 FRONT PANEL SECTION". 40 55

X9001 R9046 CR9004 R9035 10
C346 Q342 R348 C344 R400 C325 R344 R346 C323 R323 R327 R325 R321

R19 R9062

Q166 IC110 Q321 Q165

RC9013 C300

XWK3091 XWK3092 XWK3093 XWK3094 XWK3095 XWK3096 XWK3097 XWK3098
XWK3099 XWK3100 XWK3101 XWK3102 XWK3104 XWK3105 XWK****
C326 R328 C324 C139 R324 R326 Q322

XWK**** XWK**** CMKM-P3X

I.C.T.

G CN254

MIC_SW V-7 GNDA MICOUT V+7

C341 Q341 R342 C342

1 C9007

30 R9040

C C R C2 R C R R

R9025 R9026

GNDU LSSN XTLO
DIR ERR DIR RST DIR CS DIR DO DSP MOD DSP HREQ BUSY MSS MRST MSCLK MISO MOSI DEC.MUTE GNDU DMUTE MUTE.OUT 3

C321 Q321 R322 C322

J CN307

I CN303

CNJA101
GNDU Q388 R391 RC384 R386 R388 C277 R277 R275 R269 R271 R273 R362 R381 C278 R278 R276 R270 R272 R274 C271 CC380 C361 ICC269 QC362 R364 C261 C266 R268 C268 C370 R341 C341 Q341 R342 C342 Q342 R325 IC5 C321 Q321 R322 C322 D107 D108

PRODUCTION CODE

C318 C317
Q5001 C257 R257 R255 R249 R251 R253 IC103 CC5 C258 R258 R256 R250 R252 R254 C251 R5008 C5003 R314

C5005 C5001 C5004

R317 R318 C330 C329
C272 C265 R267 C267 R265 C263 R263 R261
R266 C264 R264 R262 R282 R284 C284 R286 C288 R288 C286 C282 C292 4
C252 C241 C245 R247 C247 R245 C243 R243 R241 R215 R209 R211 R213 IC105 C209 1
C248 R246 C244 R244 R242 C214 R216 R210 R212 R214 C217

C309 C311 R302 R301

C312 C310 C307 C308

C246 R248

IC108 C125

C302 R311

R312 C213 R170 R168 R162 IC102 C166 R152 R151 C132 8

R166 R164 C164

C168 C291 R290 R292 R294 R296 R298 C298 C290 C201 C218 C205 R207 C207 R205 C203 R203 R201 GDAC C202 C206 R208 C208 R206 C204 R204 R202 C169

Q166 QR167 R161 C155

C153 C154

R165 R163 C163

CN111 18

F CN804

F CN802
R310 R308 R305 R306 R307 R303 R304

C305 14

C306 C123 C142 C141 C126 JA102

C301 C127 JA103

GNDA C134

GNDA C136 JA104

C122 C121 C124

1 SW.DET AMUTE

1 C GNDA SB -12V SW 28 GAV +12V GNDA SW.OUT SBOUT

AC.WP -VF

1 GNDT FM COMP D+5.6V GNDU ST5.6V AC.RY T+12V GNDT
SB.IN GDAC C.IN GDAC SW.IN GDAC SL.IN GDAC SR.IN GDAC FL.IN GDAC FR.IN 5 GDAC FR.OUT GDAC FL.OUT V+5A
4053 INH 4053A FUR RMC SRIN SROUT

V3 V2 V1

R8312 R8313 R8314 R8326

C8539 C8538

AWX8253 AWX8254

AWX8255

AWX8239

C8534 C8535 R8603 L8602 C8531

R8537 L8502

AWX8250

AWX1082 AWX1083

R8801 R8812 R8811 R8813 R8602

IC8602

AWX8241

AWX8251 AWX8252

C8014 C8013

AWX8240

C8606 C8605

C8608 C8607

IC8902

IC8503 IC8101 Q8503

4.5 AMP & PRIMARY and AMP INPUT ASSYS

Q252 D253

3 R266

CN252 R265

8 C252
AMP INPUT XWZ3677 XWZ3678

W609 W611

FL GNDA FR GNDA SL GNDA SR W613 GNDA C W614 A.MUTE W684 ATT B.DET OL Q258 DC D254 NECK R268 GNDU 1 Q257
A.MUTE SB GNDA SR GNDA SL GNDA FR GNDA FL GNDA GNDA C W606

1 CN255

-12V GNDU +12V

A CN106

D5SBA20

R706 R705

ICP-N10

Q702 Q703

J6 RED

2 D701

E J6 E J7

R702 C706

Q702 R704 Q703

GRAY BLUE J8 J701 GRAY

BOND W572 W550 R701 W578 R707 W574 W573 R708 C705 R703

W576 W575

H702 W579 W580 W5

J7 WHITE

VLW559 C703 W560

IC701 Q701

Q701 W555 W557 W556
NECK+ NECKW554 W553 C701 W552 W551 R670 R672 R674 Q631 C631 Q632 R673 D652 Q655 R671 D651 D631
Q631 Q632 Q691 Q692 Q633 Q604 Q606 Q656 Q654 IC606 Q652 Q602 Q605 Q651 Q603 IC604 IC605 IC607 IC601 IC602 Q653

C691 R16 Q691 Q692

C638 C634 W539 W535 W534 W536 W537 W538 W540

C604 R610 C606

C665 R633

NECK+ NECK-

C692 D653 W529

C662 C632 R635

OL B.DET ATT AMUTE C GNDA SR GNDA SL GNDA FR GNDA FL

R634 C633

DC DET.
Q654 W761 R665 R652 C657 R658

491010

R608 W515 R605 C602 R604 R609 C611 Q602 R602 C612

W510 W511

R639 R638

C637 W504

R644 D634 D1
C613 Q601 R613 R607 R601 W22

IC602 word surface

C614 W508

W502 W505

C601 Q603

GNDU NECK DC

W541 W
RISK OF FIREREPLACE FUSE AS MARKED.
5 GNDU NECK DC OL B.DET ATT

FAN+ FAN- 4 IC251 STOP

Q252 Q254 Q255 Q256 IC251 Q253 Q251

Q256 W627 R264

G AMP INPUT ASSY

Q257 Q258

AMP&PRIMARY ASSY

BOND Q704 W683

D5SBA2

SECONDARY

R51 T51
RISK OF FIRE-REPLACE FUSE AS MARKED. J1

J2 BLUE

KN51 C57 C55

SIDE A H J2 H J1

H54 H56

491.500

52 W670

W667 C51

D52 W661 D53 W662
W649 C53 R53 D55 L51 CN51

R52 DRY51

RED BLACK
W637 W638 W639 W641 W640 1
D58 Q51 W635 CW634 C711 H51 H52

A CN105

I VIDEO ASSY
4053INH 4053A FURNITURE RMC SRIN SROUT SWDET AMUTE V3 V2 V1 CN303

W139 W169 C338

C310 W203 W210 W204 CN302

F CN803

R 31 3

CN301 CN390

BOARD TO BOARD HCI40HI

K BOARD TO BOARD ASSY

XWZ3664
CN7 FRONTV VIDEO3 VIDEO2 VIDEO1 V-5.6V ADG V+5.6V

L CN351 U CN551

I J K T
SR AG SL 12V SW -12V SB AG C

9 CN307

JA1901 W234

JA1902 W235

DIGITAL IN XWZ3659 XWZ3658 XWZ3657

CN1901 C1904

KN1901

W140 W141 W173 W171 W172

V+5.6V W757 ADG

+5V W192 ADG -5V

XWZ3644 XWZ3645 XWZ3646 XWZ3647

4053INH

4053A V-5.6V

V+5.6V

FRONT V V1

V1 FRONT V

V-5.6V 4053A

ADG 4053INH

4053A 4053INH V-5.6V ADG V+5.6V

XWZ3665

C319 C318 IC302 C8 CRCR1351 C1352 IC304

C317 R331 R334 R332

SR AG SL C1365 12V SW -12V SB AG C

8 R1353

C1351 R349 R347

C1362 R1352

R387 R388 SB C380 Q304 Q303 C333

C335 R319

R314 D303

R389 R318 R390

SW R317

LD/DVD

C334 R315
MONI. R392 C306 R305 TV C347 D301 C340 D302 CG R306 C302 C305 REC R303 C8 G

DIGITAL IN HCI40HI

XWZ3659 XWZ3658 XWZ3657
C1909 / R1903 C1908 RR310 R391 G
4053A 4053INH V-5.6V ADG V+5.6V 4053A FRONT V V3 V2 V1 V-5.6V V3 V2 V1 V-5.6V 1 ADG ADG V+5.6V
V3 FRONT V 4053A 1 4053INH
4053INH 4053A FURNITURE RMC SRIN SROUT SWDET AMUTE V3 V2 V1

XWZ3644 XWZ3645

R393 C378

L304 FURN. SR IN

V+5.6V 5

XWZ3664 XWZ3665

XWZ3646 XWZ3647

R312 ADG -5V V1 V2 D307

Q304 Q303 IC301

CN392 CN391

SR OUT L302 D306 D305 R304 R311

BOARD TO BOARD

C311 C313
1 F.OPT 2 SHIELD 3 GNDD 4 D+5V 5 SHIELD

C1907 C377 C1906

4 R337 IC303

C1901 R1901

C325 R340

R1354 C1361

6 CH IN
-12V ADG +12V uG SW OUT AG SB OUT
4.8 S. VIDEO, FRONT VIDEO and COMPONENT ASSYS

U COMPONENTASSY

OUT OUT

TV/SAT 1 5

VCR PLAY

VCR REC 6

MON12 5

Y C352

C C355

CN353 CN352 C358

L S. VIDEO ASSY

XWZ3660 HCI40HI

S.VIDEO
W181 W147 W179 W180 W146 W145

ADG Y C V

W178 W+5V ADG -5V V1 V2 V3 F.V 7 CN7

FRONT VIDEO

Q FRONT VIDEO ASSY

XWZ3655 XWZ3696

D8401 D8402,D8502,D8503

L8002,L8004,L8501,L8502 L8601,L8603 CHIP SOLID INDUCTOR L8101-L8104,L8201,L8203,L8204 L8401,L8402,L8504 L8701,L8702 CHIP SOLID INDUCTOR ATL7002 ATL7002 QTL1013 QTL1013 QTL1013
C8209,C8210 C8421 C8107,C8112 C8007,C8008,C8109,C8201,C8212 C8214,C8404,C8409-C8414 C8416,C8417,C8419,C8505,C8507 C8509,C8511,C8512,C8515,C8518 C8520,C8522,C8524,C8526,C8528 C8530,C8532,C8534,C8536,C8539 C8541,C8543,C8545,C8551 C8602,C8603,C8610,C8703,C8706 C8548,C8549 C8701,C8704 C8105,C8406,C8415,C8546,C8547 C8613,C8902,C8904 C8217,C8225,C8408 C8204,C8555 C8009,C8104,C8114,C8405,C8418 C8517,C8554 C8010,C8115,C8202,C8207,C8213 C8215,C8407,C8420,C8422,C8504 C8513,C8521,C8523,C8525,C8527 C8529,C8531,C8533,C8535 C8537,C8538,C8540,C8542,C8544 C8550,C8601,C8604 C8609,C8702,C8705,C8901,C8903 C8110,C8516 C8514 C8203 CCSRCH100D50 CCSRCH101J50 CCSRCH470J50 CCSRCH471J50 CCSRCH471J50 CCSRCH471J50 CCSRCH471J50 CCSRCH471J50 CCSRCH471J50 CCSRCH471J50 CCSRCH471J50 CCSRCH8R0D50 CEV100M16 CEV101M16 CEV101M16 CEV470M6R3 CKSRYB102K50 CKSRYB103K50 CKSRYB103K50 CKSRYB104K16 CKSRYB104K16 CKSRYB104K16 CKSRYB104K16 CKSRYB104K16 CKSRYB104K16 CKSRYB104K16 CKSRYB105K6R3 CKSRYB333K16 CKSRYB473K50

RESISTORS

> R171, R172 > R173, R174 > R311, R312
Other Resistors RS1/16S470J RS1/16S472J RS1LMF101J RS1/16S###J
CN105 CN104 CN103 CN102 CN101
9P CONNECTOR 11P CONNECTOR 13P CONNECTOR 10P CONNECTOR 17P CONNECTOR
52044-0945 52044-1145 52044-1345 52045-1045 52045-1745 52045-1945 AKB7048 B3B-PH-K KP200TA18L KP200TA20L VEF1040 ASS7032
CN106, CN112 7P CONNECTOR JA101JA104 PIN JACK(4P) CN107 CONNECTOR POST CN109 18P SOCKET CN111 20P SOCKET 101103 PCB BINDER X9001 CERAMIC RESONATOR (15.7 MHz)
R8506 R8201 Other Resistors RAB4C101J RS1/16S1802F RS1/16S###J
IC8201 IC8401 IC8501 IC8601 IC8901
AK4114VQ AK4529VQ DSPD56367PV150 IS61LV6416-12T NJM2391DL1-33 NJU7223DL1-18 PD8116A TC74HCU04AF TC74LVX244FT TC74VHCT244AFT CN8012 19P CONNECTOR JA8101 2P PIN JACK CN8003 13P SOCKET CN8007 19P SOCKET JA8102 OPT. LINK IN CN8017 10P CONNECTOR X8501 CRYSTAL RESONATOR (20 MHz) X8201 CRYSTAL RESONATOR (24.576 MHz) 52045-1945 AKB7131 AKP7070 AKP7073 GP1FA513RZB VKN1414 VSS1171 XSS3003
IC8902 IC8603 IC8101 IC8701 IC8702

RS1LMF4R7J RS2LMF392J

C AMP & PRIMARY ASSY
> IC603 PROTECTOR(1A) > IC604IC607 PROTECTOR(125mA) > IC701, IC702 PROTECTOR(400mA)
IC51 > IC601 AEK7009 AEK7022 ICP-N10 NJM78M56FA PAC010A PAC011A 2SA1145 2SA1837D1 2SC1740S 2SC1845 2SC2240 2SC2878 2SC2878 2SC4793D1 KRC101M 1SS133 1SS133 D5SBA20 MTZJ16A MTZJ22D MTZJ5.1A MTZJ5.1B S5688G

> R753, R754, R756, R763, R764 > R711 > R615, R616, R638, R665, R666
(0.22/5W) Other Resistors

XCN3001 RD1/4PU###J

CN53 23P CONNECTOR CN702 6P JUMPER CONNECTOR CN752 SPEAKER TERMINAL 8-P CN751 SPEAKER TERMINAL 6-P 51 AC SOCKET 1-P H51H54, H701, H702 FUSE CLIP 52045-2345 52147-0610 AKE7074 AKE7075 AKP1060

> IC602

Q703 Q702 Q691, Q692 Q704 Q605, Q606, Q633, Q655, Q656 Q601Q604, Q631, Q632 Q651Q654 Q701 Q51 D56, D601D604, D631, D632 D651D654, D752, D756, D758 > D701, D702 D605, D606, D633, D634 D711 D58 D712 > D51D55, D721D724
> T51 STANDBY TRANSFORMER
AKR7001 ATT7043 CN601 16P PLUG KM200TA16 CN51 AC CODE SOCKET RKP1751 KN51, KN601 EARTH METAL FITTING VNF7P CABLE HOLDER XKP3047
> IC851IC853 PROTECTOR (1.6A)

AEK7012

851 7P CABLE HOLDER XKP3047

> L51 LINE FILTER

L751L753, L761, L762 COIL ATF7018 ATH1004
TRANS3 ASSY has no service part.

SWITCHES AND RELAYS

RY751RY754 > RY51 XSR3002 XSR3003
IC803, IC804 IC801, IC805 IC806 IC802 Q801, Q803, Q805 Q802, Q804, Q806 D809D811 > D801D804 NJM78M05FA NJM78M12FA NJM78M56FA NJM79M12FA KRA103M KRC102M MTZJ6.2A S5688G ACG1005 ACG7020 CCPUCH6R8K50 CCPUCH6R8K50 CEANP2R2M50 CEANP470M50 CEAT100M2A CEAT101M10 CEAT101M16 CEAT101M35 CEAT102M16 CEAT221M10 CEAT470M25 CEAT4R7M50 CEHAT100M2A CFTYA104J50 CKPUYB101K50 CKPUYB102K50 CKPUYB331K50 CKPUYF103Z25 XCH3012 XCH3013

C707, C708 (0.01/AC250V)

> C51, C52 (10000pF/AC250V)
C607C610, C634, C635 C657C660 C615, C616, C638, C665, C666 C775, C776 C706 C712 C611, C612, C636, C661, C662 C711 C53 C692 C54 C605, C606, C633, C655, C656 C705 C751, C752, C755, C761, C762 C613, C614, C637, C663, C664 C691 C603, C604, C632, C653, C654 C55C57 C703, C704 (3300/42V) C701, C702 (4700/71V)
C808, C811, C815 C805, C806, C813 C801, C802 C809 C803, C804, C807, C810, C812 C814 CEAT101M10 CEAT101M16 CEAT222M25 CEAT472M16 CKPUYF103Z25

CKPUYF103Z25

CN801 CN805 CN806 CN804 CN802 23P CONNECTOR 13P PLUG 19P PLUG 18P PLUG 20P PLUG 52045-2345 AKP7059 AKP7062 KM200TA18 KM200TA20 KM200TA7

CN803 7P PLUG

> R51 (2.2M/ 1/2W) > R52 > R751, R752, R755, R761, R762
CN254 19P CONNECTOR CN253 16P SOCKET 52044-1945 KP200TA16L
RCN1080 RD1/2PM270J RD1/4PUF101J
TRANS1 ASSY has no service part.

Mark No. OTHERS

7.1 DIAGNOSIS
7.1.1 DISASSEMBLY AND DIAGNOSIS Diagnosis 1
Remove the top cover (nine screws). Note : This photograph shows other models. However, the work method is the same.

Pull up

Rear Panel

REGULATOR Assy

Diagnosis

AMP&PRIMARY Assy

Heat Sink
Note : The unit does not operate when the screws of Speaker Terminal are taken off from Rear Panel.

7.1.2 PCB LOCATION

BOARD TO BOARD Assy

S.VIDEO Assy

VIDEO Assy
AMP&PRIMARY Assy COMPONENT Assy

DIGITAL IN Assy

F W FM/AM TUNER

Module

DSP Assy

6CH IN Assy

TRANS 2 Assy

MAIN Assy

AMP INPUT Assy

FRONT VIDEO Assy

TRANS 1 Assy

TRANS 3 Assy

R. ENCODER Assy

M FRONT Assy

NOTE : This photograph is VSX-D812.

H.P. Assy

POWER SW Assy

7.2 PARTS

7.2.1 IC
The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams.

List of IC

PD5837A, PE5346A, BD3813KS, BD3841FS, NJM2581, NJM2595, AK4529
7 PD5837A (MAIN ASSY : IC9001)

System Control MCU

7 Pin Arrangement (Top View)
TUNER DO TUNER CLK TUNER DI TUNER CE NC NC NC NC NC NC NC NC NC SIMUKE1 SIMUKE2 AVSS NC VREF AVCC NC
P07/D7 P06/D6 P05/D5 P04/D4 P03/D3 P02/D2 P01/D1 P00/D0 P107/AN7/KI3 P106/AN6/KI2 P105/AN5/KI1 P104/AN4/KI0 P103/AN3 P102/AN2 P101/AN1 AVSS P100/AN0 VREF AVcc P97/ADTRG/SIN4
NC DISP RST DISP EN DISP RDY DISP DI
P96/ANEX1/SOUT4 P95/ANEX0/CLK4 P94/DA1/TB4IN P93/DA0/TB3IN P92/TB2IN/SOUT3 P91/TB1IN/SIN3 P90/TB0IN/CLK3 BYTE CNVss
P10/D8 P11/D9 P12/D10 P13/D11 P14/D12 P15/D13/INT3 P16/D14/INT4 P17/D15/INT5 P20/A0(/D0/_) P21/A1(/D1/D0) P22/A2(/D2/D1) P23/A3(/D3/D2) P24/A4(/D4/D3) P25/A5(/D5/D4) P26/A6(/D6/D5) P27/A7(/D7/D6) Vss P30/A8(/_/D7) Vcc P31/A9 P32/A10 P33/A11 P34/A12 P35/A13 P36/A14 P37/A15 P40/A16 P41/A17 P42/A18 P43/A19
TMUTE STEREO TUNED RDS FM+ RDS DT RDS CLK NC OL DET VIDEO1 VIDEO2 VIDEO3 SWDET furniture 4053A 4053INH NC GND EVR DT 5V EVR CLK LOW_CONSUMPTION MVRATT RY-AC HP DET RY_A RY_C/R RY_B AMUTE GAIN_SEL INPUT_ATT
DISP DO DISP CLK GND CNVSS NC NC XRESET XOUT GND XIN 5V NMI ACIN(WAKEUP) 1394 INT 1W WUP DECO MUTE NECK_SEL DC PROT Boad DET MIC DET 1394 RST 1394 CS 1394 CK

10 P87/XCIN 11 P86/XCOUT 12 RESET 13 XOUT 14 VSS 15 XIN 16 VCC 17 P85/NMI 18 P84/INTP83/INT1 P85/NMI 20 P82/INTP81/TA4IN/U 22 P80/TA4OUT/U 23 P77/TA3IN 24 P76/TA3OUT 25 P75/TA2IN/W 26 P74/TA2OUT/W P44/CS0 P45/CS1 P46/CS2 P47/CS3 P50/WRL/WR P51/WRH/BHE P52/RD P53/BCLK P54/HLDA P55/HOLD P56/ALE P57/RDY/CLKOUT P60/CTS0/RTS0 P61/CLK0 P62/RxD0 P63/TXD0 P64/CTS1/RTS1/CLKS1 P65/CLK1 P66/RxD1 P67/TXD1
27 P73/CTS2/RTS2/TA1IN/V 28 P72/CLK2/TA1OUT/V 29 P71/RxD2/SCL /TA0IN/TB5IN 30 P70/TXD2/SDA /TA0OUT

1394 DO 1394 DI

XTL0 DIR ERR DIR CDC RST NC DIR CS DIR DO NC DSP MUTE DSP MODE DSP HREQ BUSY DSP SS DSP RST DSP CLK DSP DO DSP DI 232C CTS CLK 232C TXD 232C RXD

Pin Function

No. Port P96/ANEX1/SOUT4 P95/ANEX0/CLK4 P94/DA1/TB4IN P93/DA0/TB3IN P92/TB2IN/SOUT3 P91/TB1IN/SIN3 P90/TB0IN/CLK3 BYTE CNVss P87/XCIN P86/XCOUT RESET XOUT VSS XIN VCC P85/NMI P84/INT2 P83/INT1 P85/NMI P82/INT0 P81/TA4IN/U P80/TA4OUT/U P77/TA3IN P76/TA3OUT P75/TA2IN/W P74/TA2OUT/W P73/CTS2/RTS2/TA1IN/V P72/CLK2/TA1OUT/V P71/RxD2/SCL/TA0IN/TB5IN P70/TXD2/SDA/TA0OUT P67/TXD1 P66/RxD1 P65/CLK1 P64/CTS1/RTS1/CLKS1 P63/TXD0 P62/RxD0 P61/CLK0 P60/CTS0/RTS0 P57/RDY/CLKOUT P56/ALE P55/HOLD P54/HLDA P53/BCLK P52/RD P51/WRH/BHE P50/WRL/WR P47/CS3 P46/CS2 P45/CS1 P44/CS0 NC DISP RST DISP EN DISP RDY DISP DI DISP DO DISP CLK GND CNVSS NC NC XRESET XOUT GND XIN 5V NM ACIN(WAKEUP) 1394 INT 1W WUP DECO MUTE NECK_SEL DC PROT Boad DET MIC DET 1394 RST 1394 CS 1394 CK 1394 DO 1394 DI 232C RXD 232C TXD CLK 232C CTS DSP DI DSP DO DSP CLK DSP RST DSP SS BUSY DSP HREQ DSP MODE DSP MUTE NC DIR DO DIR CS NC DIR CDC RST DIR ERR XTL0 I I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O Reset signal for DIR CODEC lock/unlock signal DIR X'tal change

Pin Name

I/O I/O I/O I/O I/O I/O I/O I/O

Pin Function

Reset signal to display u-com Enable signal to display u-com Ready signal from display u-com Data out to display u-com Data input from display u-com Clock signal to display u-com

I/O I/O

No use AC pulse input No use (Standby for 1394) Wake up signal from display u-com 1st DSP detect port 5.1ch, surround mode and A+B Stereo : H / Stereo : L AMP DC detect AMP INPUT ASSY detect, H : detected MIC detect (VSX-D912 only), L : detect No use (Standby for 1394) No use (Standby for 1394) No use (Standby for 1394) No use (Standby for 1394) No use (Standby for 1394) For rewriting 232C (Data output) For rewriting 232C (Data input) It is necessary when writing for JIG For rewriting 232C (Admit communication) Data output signal for communication with DSP and DIR Data input signal for communication with DSP Clock signal for communication with DSP and DIR Reset signal for DSP Srobe select signal to DSP Use it in MCACC DSP error detect signal Mode select of DSP (ROM/RAM) DSP ASSY mute Data input signal for communication with DIR/DAC Chip select signal for communication with DIR/DAC

"H"

"L"

full open

AMP ERROR DETECT
7.3.2 IC DATA TRANSMISSION TIMING CHART
IC data transmission timing chart
1.When function chage 0 120ms pass 180ms pass 240ms pass 300ms pass 440ms pass 500ms pass
A.MUTE (port) E-volume (BD3813)

"L"(mute)

"L"or"H"

Mute data

Last data
function SW (BD3841) video select (NJM2595)

Now data

Full open

New data

DSP or direct change (BD3813) Now data speaker relay (port) Now data
condition of mute cancel (system mute & E-volume mute) 1) when tuner mute during Tuner function 2) when communicate to DSP 3) when initial processing 4) when detect trouble of AMP DC 5) when detect overload of AMP 6) when Power off 7) when muting by key input
2.When except function chage

A.MUTE (port)

120ms pass

180ms pass

240ms pass

300ms pass

440ms pass

500ms pass

E-volume (BD3812,13) Mute data DSP or direct change (BD3813) Now data speaker relay (port) Now data

New or last data

7.3.3 DETECTION CIRCUIT
1.DC Detection Circuit Diagram:
+5V AMP u-con IC9001 DC PROT IC601, IC602 DC DET. Q692 L : ON H : OFF Pin 23
2. Overload Detection Circuit Diagram:
+5V u-con IC9001 OL DET L : ON H : OFF Pin 73
Q605, Q606, Q633, Q655, Q656 O.L. DET IC601, IC602
3. Fan Stop Prottection Circuit Diagram:
+5V u-con IC9001 DC DET. Fan Stop DET. Fan Stop Fan Fan Fan + R265 DC PROT L : ON H : OFF Q253 Pin 23

-12V +12V

4. PCB Board Protection Circuit Diagram

Main Assy

Amp Input Assy R
Amp & Primary Assy Speaker

Micro-p

7.3.4 AMPLIFIER SYSTEM PROTECTION OPERATION SPECIFICATION
1. DC-abnormality detection In the case of simultaneous detection with the overload protection circuit, DC-abnormality detection is performed preferentially to overload detection. When a DC abnormality is detected, A.MUTE* is turned on, speaker relay is turned off, then "AMP_ERR" flashes on the display. The abnormality continues for 3 seconds. Continues. Recovery The program restarts.

*A.MUTE : Audio mute command
The power is shut off. The power key is disabled and Standby LED blinks.
But be switched on with the following methods. 1 TESTMODE ON (A55F+A55F) 2 When power off, push FRONT ENTER key + ADVANCED SURROUND key continuously 2sec. (2: When a DC abnormality is detected and the power is shut off.) 2. Overload detection
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. The power is shut off. Recovery The power is shut off even if the unit recovers.
3. Board detection In the case of simultaneous detection with the overload protection circuit, Board detection is performed preferentially to DC-abnormality detection and Overload detection. When an boad error is detected, A.MUTE* is turned on, speaker relay is turned off, then "BOAD ERR" flashes on the display. The abnormality continues for 3 seconds. Continues. Recovery The power is shut off even if the unit recovers.

The power is shut off.

8. PANEL FACILITIES

Front panel

STATION

TUNING

SPEAKERS

SB CH MODE

QUICK SETUP
PHONES SURR. LISTENING MODE TUNER EDIT CLASS BAND MPX INPUT ATT FL DIMMER VIDEO INPUT

MULTI JOG

MULTI JOG S-VIDEO VIDEO L AUDIO R
1 STANDBY/ON Switches the receiver between on and standby. 2 Input select buttons Press to select an input source. 3 STANDBY indicator Lights when the receiver is in standby mode. 4 Remote sensor Receives the signals from the remote control.
6 MULTI JOG dial The MULTI JOG dial performs a number of tasks. Use it to select options after pressing TONE, QUICK SETUP or TUNER EDIT. 7 MASTER VOLUME
8 PHONES jack Use to connect headphones. When the headphones are connected, there is no sound output from the speakers.
9 STATION +/ buttons Selects station presets when using the tuner. 10 TUNING +/ buttons Selects the frequency when using the tuner. 11 LISTENING MODE buttons STANDARD Press for Standard decoding and to switch between the various Pro Logic II and Neo:6 options. ADVANCED SURROUND Use to switch between the various surround modes.
18 VIDEO INPUT See Connecting to the front panel video terminal. 19 FL DIMMER Use this button to make the fluorescent display (FL) dimmer or brighter. 20 INPUT ATT Use to attenuate (lower) the level of an analog input signal to prevent distortion. 21 MPX Press to receive a radio broadcast in mono. 22 BAND Switches between AM and FM radio bands. 23 CLASS Switches between the three banks (classes) of station presets. 24 TUNER EDIT Press to memorize and name a station for recall.

STEREO/DIRECT Switches between direct and stereo playback. Direct playback bypasses the tone controls and channel levels for the most accurate reproduction of a source. 12 SIGNAL SELECT Use to select an input signal. 13 MIDNIGHT/LOUDNESS Use Midnight when listening to movie soundtracks at low volume. Use Loudness to boost the bass and treble at low volume.
14 SPEAKERS Use to cycle through the speaker system: A = B = A+B 15 SB CH MODE Selects the surround back channel mode and the Virtual Surround Back (VSB) mode. 16 TONE Press this button to access the bass and treble controls, which you can then adjust with the MULTI JOG dial. 17 QUICK SETUP See Using the Quick Setup.

Rear panel

AM LOOP IN DIGITAL OUT AUX FM UNBAL 75

CENTER SUB WOOFER

ASSIGNABLE ( D V D / LD) IN

ANTENNA

MONITOR OUT

SURROUND DVD 5.1CH INPUT

VCR / DVR
IN CONTROL OUT VCR / DVR IN TV/ SAT IN DVD / LD IN S-VIDEO

(T V / SAT) IN

VIDEO TV / SAT DVD / LD FRONT IN OUT IN MONITOR OUT SUB WOOFER PREOUT SURROUND BACK
(TV / SAT) IN ASSIGNABLE DIGITAL IN COAX (CD) IN COAX

(DVD OUT /LD) IN

DVD 5.1CH REC INPUT IN CD-R / TAPE / MD PLAY AUDIO

S P E A A K E R S

R SURROUND L

AC OUTLET

Display
1 SIGNAL SELECT indicators Lights to indicate the type of input signal assigned for the current component: AUTO Lights when AUTO signal select is on. SB Depending on the source, this lights when a signal with surround back channel encoding is detected. DIGITAL Lights when a digital audio signal is detected. 2 DIGITAL Lights when a Dolby Digital encoded signal is detected. ANALOG Lights when an analog signal is detected. DTS Lights when a source with DTS encoded audio signals is detected. 2 DTS When the STANDARD mode of the receiver is on, this lights to indicate decoding of a DTS signal. DIGITAL When the STANDARD mode of the receiver is on, this lights to indicate decoding of a Dolby Digital signal. PRO LOGIC II When the (STANDARD) Pro Logic II mode of the receiver is on, this lights to indicate Pro Logic II decoding. 5 VIR.SB Lights during Virtual surround back processing. 6 ATT Lights when INPUT ATT is used to attenuate (reduce) the level of the analog input signal.
7 DIRECT Lights when source direct playback is in use. Direct playback bypasses the tone controls and channel levels for the most accurate reproduction of a source. 8 MIDNIGHT Lights during Midnight listening. 9 SLEEP Lights when the receiver is in sleep mode. 10 Speaker indicator Shows the speaker system currently in use. 11 Character display 12 Neo:6 When the (STANDARD) NEO:6 mode of the receiver is on, this lights to indicate NEO:6 processing. 13 ADV.SURR. (Advanced Surround) Lights when one of the Advanced Surround modes has been selected. 14 LOUDNESS Lights when LOUDNESS has been selected. 15 TUNER indicators STEREO Lights when a stereo FM broadcast is being received in auto stereo mode. MONO Lights when the mono mode is set using the MPX button. TUNED Lights when a broadcast is being received. 16 Master volume level Shows the overall volume level. ---dB indicates the minimum level, and - 0 dB indicates the maximum level. Depending on your level settings for each channel, the maximum volume can range between 10 dB and 0 dB.

5 Receiver and component control buttons (Press the corresponding MULTI CONTROLbutton first to access). These controls function according to the component youve selected. TOP MENU Displays the disc top menu of a DVD. DTV MENU Displays menus on a digital TV. AUDIO Changes the audio language or channel with DVD discs. MCACC SETUP Use to setup your speaker system using the multi-channel acoustic calibration system. MENU Displays the disc menu of DVD-Video discs. It also displays TV and DTV menus. INPUT ATT Attenuates (lowers) the level of an analog input signal to prevent distortion. T.EDIT Use to memorize and name a station for recall using the STATION +/ buttons. GUIDE Displays the guides on a digital TV. SUBTITLE Displays/changes the subtitles included in multilingual DVD-Video discs. SLEEP Use to put the receiver in sleep mode and select the amount of time before the receiver turns off. 6 }] (TUNE +/, ST +/) /ENTER Use the arrow buttons when setting up your surround sound system. Also used to control DVD menus/options and for deck 1 of a double cassette deck player. Use the TUNE +/ buttons to find radio frequencies and use ST +/ to find preset stations.
7 Component/Tuner control buttons The main buttons (3, 7, etc.) are used to control a component after you have selected it using the MULTI CONTROL buttons. The tuner/DTV controls above these buttons can be accessed after you have selected the corresponding MULTI CONTROL button (TUNER or TV/SAT (when connected to DTV)). RETURN Returns to the last screen selected when using a digital TV tuner.