Continuous power output (surround)
Front.110 W per channel (1kHz, 1.0 %, 8 ) Center.110 W (1kHz, 1.0 %, 8 ) Surround.110 W per channel (1kHz, 1.0 %, 8 ) Surround Back.110 W per channel (1kHz, 1.0 %, 8 )
Signal-to Noise Ratio [EIA, at 1 W (1 kHz)]
CD, DVR/VCR, CD-R/TAPE/MD, DVD/LD, TV/SAT. 79 dB

Video Section

Input (Sensitivity/Impedance)
DVR/VCR, DVD/LD, TV/SAT. 1 Vp-p/75

VSX-D814

Front.100 W per channel (1kHz, 1.0 %, 8 ) Center.100 W (1kHz, 1.0 %, 8 ) Surround.100 W per channel (1kHz, 1.0 %, 8 ) Surround Back.100 W per channel (1kHz, 1.0 %, 8 )
DVR/VCR, MONITOR OUT. 1 Vp-p/75

Frequency response

DVR/VCR, DVD/LD, TV/SAT ] MONITOR. 5 Hz to 7 MHz dB Signal-to-Noise Ratio. 55 dB
CD, DVR/VCR, CD-R/TAPE/MD, DVD/LD, TV/SAT.200 mV/47 k
CD, DVR/VCR, CD-R/TAPE/MD, DVD/LD, TV/SAT.5 Hz to 100,000 Hz dB

Component video section

Input (Sensitivity)
DVD/LD, TV/SAT. 1 Vp-p/75

MONITOR OUT. 1 Vp-p/75

DVD/LD, TV/SAT ] MONITOR. 5 Hz to 40 MHz dB Signal-to-Noise Ratio. 55 dB

Furnished Parts

AM loop antenna.1 FM wire antenna.1 AA/LR6 dry cell batteries.2 Remote control.1

FM Tuner Section

Frequency Range. 87.5 MHz to 108 MHz Usable Sensitivity.Mono:13.2 dBf, IHF (1.3 V/ 75 ) 50 dB Quieting Sensitivity.Mono: 20.2 dB.Stereo: 38.6 dBf Signal-to-Noise Ratio. Mono: 73 dB (at 85 dBf) Stereo: 70 dB (at 85 dBf) Distortion.Stereo: 0.5 % (1 kHz) Alternate Channel Selectivity. 60 dB (400 kHz) Stereo Separation.40 dB (1 kHz) Frequency Response. 30 Hz to 15 kHz (1 dB) Antenna Input (DIN).75 unbalanced
Microphone (VSX-D914 model only).1 Microphone stand (VSX-D914 model only).1

Operating instructions.1

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.

Cleaning the unit

Use a polishing cloth or dry cloth to wipe off dust and dirt. When the surface is dirty, wipe with a soft cloth dipped in some neutral cleanser diluted five or six times with water, and wrung out well, and then wipe again with a dry cloth. Do not use furniture wax or cleansers. Never use thinners, benzine, insecticide sprays or other chemicals on or near this unit, since these will corrode the surface.

AM Tuner Section

Frequency Range.530 kHz to 1,700 kHz Sensitivity (IHF, Loop antenna). 350 V/m Selectivity. 25 dB Signal-to-Noise Ratio. 50 dB Antenna.Loop antenna

Miscellaneous

Power Requirements. AC 120 V, 60Hz Power Consumption.300W, 420 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).10.6 kg (23.4 lb)

Mark No. 15 Description FRONT DISPLAY ASSY R. ENCODER Assy P. SW & FUNC. KEY Assy FRONT KEY Assy H.P. Assy FRONT OPT & MIC Assy J29 8P Shield Cable JOG Knob VOL Knob Standby BTN V1 FUNC BTN V1 Enter BTN V1 Sub BTN V1 B Lens R6 Sub Panel Part No. XWZ3756 XWZ3822 XWZ3764 XWZ3758 XWZ3768 See Contrast table(2) XDX3022 See Contrast table(2) See Contrast table(2) See Contrast table(2) See Contrast table(2) See Contrast table(2) See Contrast table(2) XAK3352 See Contrast table(2) Mark No. 18 NSP NSP 27 Description D Panel MCACC V1 Function Lens V1 Pioneer Badge B C Ring DIM 8.1 FRT Panel Earth Plate R5 HP Earth Plate FI V1 J30 5P Shield Cable J32 5P F.F.C/30V Screw Screw Energy Star Label Part No. XAK3426 XAK3428 See Contrast table(2) XBH3016 See Contrast table(2) XNG3066 XNG3119 XDX3023 See Contrast table(2) BBZ30P080FTC BPZ30P100FTC AAX8022
FRONT OPT & MIC Assy JOG Knob V1K JOG Knob V1P VOL Knob V1K VOL Knob V1P Standby BTN V1K Standby BTN V1PL FUNC BTN V1K FUNC BTN V1S Enter BTN V1K Enter BTN V1S Sub BTN V1K Sub BTN V1S Sub Panel 914K/KU Sub Panel 814K/KU Sub Panel 814S/JP Pioneer Badge B FRT Panel 914K/KU FRT Panel 814K/KU FRT Panel 814S/KU J32 5P F.F.C/30V
XWZ3771 XAB3038 Not used XAB3039 Not used XAD3173 Not used XAD3174 Not used XAD3175 Not used XAD3176 Not used XAK3423 Not used Not used XAM3006 XMB3136 Not used Not used XDD3125
XWZ3770 XAB3038 Not used XAB3039 Not used XAD3173 Not used XAD3174 Not used XAD3175 Not used XAD3176 Not used Not used XAK3424 Not used XAM3006 Not used XMB3137 Not used Not used
XWZ3770 Not used XAB3040 Not used XAB3041 Not used XAD3191 Not used XAD3180 Not used XAD3181 Not used XAD3177 Not used Not used XAK3436 VAM1129 Not used Not used XMB3144 Not used
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

CN4 CN17 CN109 uPC4570G2 (LPF) IC105 ICIC1 (DIR) 46 IC8201 AK4114VQ
IC8601 IS61LV6416 -12T(S-RAM) IC8602 IS63LV1024 -12T(S-RAM) IC8603 PD8116A (ROM)

CNVSX-D914 Only

IC101 BD3841FS (FUNCTION SEL)

3 IC102 NJM2100M

3 CN901

1 CN24 26

CN8007 IC8401 (CODEC) AK4529VQ 23 (ADC) (DAC) 31
IC8501 MOTOROLA DSP (for DECODE)

3 IC52

CN951 1

1 CN1902

1 CN1901

1 CN8017

19 CN8007

ICCN109

IC303 1

CN307 3

DIR DO DIR CS DIR RST DIR ERR XTLO

17 V-47K R9009 V+E

MOSI MISO MSCK MRST MSS BUSY DSP HREQ DSP MODE

R9027 100

100K C9012 stby

R9042 R9043

R9028 10K R9029 R9039 R9044

R9011 C 1SS355 1K

LSSN G
AC_RY HP_SW SPA_RY R/C_RY

INPUTATT

C9000 STBY

4053INH V1

DTC143TK-TLB

Q9002 DTA124EK-TLB

R9012 B 27K

Q9003 DTA124EK-TLB

V3 GNDU SWDET FUR B 4053A

Q9007 2

TUNED RDS_ON_/_OFF RDS_DT RDS_CLK
Q9006 E DTC143EK-TLB VLDT GNDU
Q9004 DTA124EK-TLB E MVRATT
TO CORE ASSY (TO DSP CORE)
47 E C9013 470/6.3 C R9030

C R9063

C9017 GNDU 0.01u

V+5U R9061 C 47K

A 1/3 A 2/3

3.6 DSP ASSY (1/2)

JA8101 (1/2) AKB7131 COAXL8101 QTL1013 R8102 47k IC8101 (6/6) TC74HCU04AF CR8109 2.2k : AWX1082,: AWX8250,8251 R8107 2.2k 0.01 YB 75
V52 IC8101(5/6) TC74HCU04AF 3

100 R8105

QTL1013 L8103

100 C8105

RC8108 stby RC8218 stby

(3/6) IC8101 TC74HCU04AF

47p CH

470p CH C8110

JA8101(2/2) AKBCOAXGP1FA513RZB
(4/6) IC8101 TC74HCU04AF 14 8

L8102 QTL1013

C8114 0.01 YB

1 YB GNDD V31 V3D

R8110 C8219 stby 100 R8227 0

C8203 0.47 YB R8201 18k

C8201 470p

0.1 YB

3 C8115 0.1 YB

RV5D1 L8104

R8202 10k

YB 1000p C8205

stby C8206

OPT IN1

R8228 0

stby C8207

47/6.3 C8210 X8201 XSS3003 24.576MHz CH 10p

JA8102

IC8101 (1/6) TC74HCU04AF R8111

IC8101 (2/6) TC74HCU04AF

100/16

L8201 QTL1013

R8230 QTL1013 Cstby RC8222 stby GNDD
VCOM RX2 RX1 AVSS RX0 AVDD AVSS AVSS AVSS R

OPT IN2 10

CN8017 V+5D

VKN1414

R8113 R8114 100k R8115 100k

FRONT OPT GNDD GNDD

R8222 stby

GNDD GNDD OPT OUT

R8221 stby

100 LRCK R8215

100 C8211

R8223 0

R8213 47
V32 L8205 stby R8219 C8216 stby
L8204 L8203 QTL1013 CH470p C8213 CH470p C8215 C8212 YB 0.1 C8225 47/6.3 C8214 QTL1013 0.1

RR8339 0

B2 C2 1000p YB C8555
TIO0 PB13 PB10 PB9 PB8 PB7 PB6 PB5

0 R8532 R8520 R8521 R47k

VCCH GNDH PBPB2 PB1 LSSN PB0 ADMD RESET
MOSI TMS TCK TDI TDO SDI1_1 MODA

R8550 0

C8517 YB

C8514 0.033

YB 0.01 R8527 470p CH C8516 CYB stby R8552

R8531 0

R8551 stby
VCCP PCAP GNDP SDI0_1 VCCQH
X8501 VSS1171 20MHz R8540 470p CH 10 R0.1 YB C8518

C8548 0

AA2 R8523 CAS SCKT_1

FST_1 AA2

0.1 YB C8545
IC8502 (2/3) IC8502 (1/3) TC7WU04FU TC7WU04FU RR8541

B 2/2 DSP ASSY

470p 470p 470p 470p CH CH CH CH 136135134133132131130129128127126125124123122121120119118117116115114113112111110109
108 DD105 D3 BOOT MODE A B C D 104 GNDD DECORDER 103 VCCD P2ROM 102 D2 UCOM 101 DD0 A98 AAGNDA 95 IC8501 VCCQH 94 A14 DSPD56367PV150 (AX6) 93 AA12 VCCQL DSP GNDQ 89 AAGNDA 86 VCCA 85 AAAAGNDA 80 VCCA 79 A5 AAA75 GNDA 74 VCCA 73 A72
CH 8p 1M 2 C8549 0.1 YB CH 8p V37
MODC MODD D23 D22 D21 GNDD VCCD D20 GNDQ

0.1 YB C8543

470p 470p CH CH C8521 C8523

C8520 C8522

L8504 QTL1013 C8554 47k 470p CH C8525 C8524 0.1 YB 47k R8529 R8528 YB 0.01 C8550 YB 0.1 C8551 CH470p
GNDQ EXTAL VCCQL VCCC GNDC FSR_1 SCKR_1

VCCQL D19 D18

GNDD IC8502 (3/3) TC7WU04FU

0.1 YB C8541

PINIT TA BR BB VCCC

WR RD AA1 AA0

L8501 0.1 YB C8539 C8538 ATL7002 R8536
BASIC MODEL DVD-A MCACC 1394

WR RD AA1 AA0 BG A0

D17 D16 D15 GNDD VCCD D14 D13 D12 D11 D10 D9 GNDD VCCD D8 D7
stby C8546 CH C8532 CH C8534 CH C8536 100/16

R8534 10K

CH C8526 CH C8528 R8608 0

10K RRD

470p C8527 0.1 YB R8606 0.1 YB 470p C8529

CH C8530

L8502 470p C8531 0.1 YB 470p C8533 0.1 YB 470p C8535 0.1 YB 470p C8537 0.1 YB ATL7002 GNDD R8537 stby C8547 100/16

0 R8533 0

0 V311 R8605
stby L8603 ATL7002 0.1 YB

R8602 10k

L8602 ATL7002

C8609 C8610

ATL7002 V310 R8601 IC8601 stby C8613
A4 A5 A6 A7 A15 A12 A13 A14
UN5212 BASIC MODEL AAC&96DTS MCACC AAC&96DTS &MCACC

RD A10 AA1

A16 A15 A14 A13 OE

IC8602 IS63LV1024-12T

A10 A8 A9 A11

D23 D22 D7 D6

C8605 470p CH 470p CH C8608 C8607 0.1 YB 0.1 YB C8606

*4 D751

*4 D753

*4 D757

52045-0745

+12V SP-A R/C SP SP-B

Q605,606,633,655,656,683: OVERLOAD DETECTOR Q696,697: ( ) DC OUTPUT DETECTOR

*5 C767

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

C 1/2 D E

3.9 AMP&PRIMARY(1/2), REGULATOR, AMP INPUT and TRANS1 ASSYS
1.RESISTORS Unit:k-k,M-M or unless otherwise noted. Rated power:1/4W unless otherwise noted. Tolerance:(J) 5% unless otherwise noted. 2.CAPACITORS Umit: p-pF or F unless otherwise noted. Ratings:Capacity(F)/Voltage(V) unless otherwise noted. Rated Voltage:50V except for electrolytic capacitors. TO DSP ASSY SBLO GDAC SBRO GDAC CO GDAC SWO GDAC SLO GDAC SRO GDAC FLO GDAC FRO GDAC AINL VCOMG AINR

KM200TA8 9

SBLO GDAC CO GDAC SWO GDAC SLO GDAC SRO GDAC FLO GDAC FRO GDAC AINR GDAC AINL AD+5V

AKP7062

IC806: D+5V REG.IC

MTZJ6.2A

IC806 NJM78M56FA OUT IN YX C814
NC AD+5V GDAC GDAC D+5V D+5V GNDD GNDD DGRTN DGRTN UGRTN UGRTN UGRTN
AKP7059 DMTZJ6.2A D809 1SS133 stby

GNDD 5.0V

IC804 NJM78M05FA OUT IN

IC804: AD+5V REG IC

A 1/3 CN109

GDAC 5.0V

IC803 NJM78M05FA OUT IN C807 YX S5688G D722 S5688G D723 D721 S5688G D801 S5688G D802 S5688G D803 C802 2200/25 S5688G D804 S5688G IC805 NJM78M12FA OUT IN C812 YX

IC803: D+5V REG.IC

4700/16
RIC801 NJM78M12FA OUT IN 100/16

IC801: +12V REG.IC 18.5V

C803 YX

IC802: -12V REG.IC

2200/25 C801
SP-B RY R/C RY SP-A RY HP.SW T+12V GNDT Stby5V GNDU D+5V AC RY AC WUP

KM200TA20

-11.9V

IC802 -18.7V NJM79M12FA

IC805: T.+12V REG.IC

C813 100/16

DREG DREG REG B REG G REG B
-VF FL AC2 FL AC1 -12V GAV +12V SWOUT GNDA SBOUT

7 Q802 DTC114ES

KM200TA7 1

FL ACFL AC-VF 10 AC WUP

SBOUT GNDA SWOUT GNDU +12V GAV -12V
Q805 DTA124ES Q803 DTA124ES Q806 DTC114ES Q801 DTA124ES 7 Q804 DTC114ES
AC RY Stby5V GNDU SP-A RY +12V SP-B RY HP.SW R/C RY

C 2/2 F

CN801 52045-2345

52045-2345

S5688G D724

S3B-EH

FAN MOTOR
Q253 DTC124ES Q257 2SA933 R268 100K R269 1K D254 MTZJ5.1B

FAN STOP

R266 100k

R265 22k C251 47/25 NP

52044-1945

-12V GNDU +12V

R264 4.7K R253 100K 17 18

SW OUT

R317 R390 1k

1.2k 4.7k D307

YB 330p

Q303 R319 2SC3326(AB)

SR OUT

4053INH

SW DET

VIDEO2

VIDEO3

4053 A

R313/R316 39/3W

VSX-D914, 814

A 3/3 CN104

5ch IN BUFFER

5.1CH ASSY (XWZ3760)

330 R332 C317 47k

YB R321

C322 STBY C323 STBY

IC302(2/2) STBY

IC302(1/2) STBY C320

CN309 XKB3035

220p R324

330 R337 CH

YB R343

330 R339 C325 47k

IC303(1/2) STBY C329 STBY C330 STBY IC303(2/2) STBY C328

220p R344

C332 4.7/50

R340 330

GNDA C -12V SW +12V SL GNDA SR

C324 4.7/50

C331 4.7/50

52044-0845 C1364

L303 L304 L305 L306

RMC SR IN TXD RXD SR OUT

NJM2296D control port status
SW1SW2SW3SW4SW5 Vout1 Vout2 Vout0 (1) (1) 0 Vin2 Vin3 Vin4 Vin5 mute Vin2 Vin3 Vin4 Vin5 mute mute Vin3 Vin4 Vin5 mute VIN 2.VCR VIN 3.DVD/LD VIN 4.TV/SAT VIN 5.FRONT Vout1. MON out Vout2. MR out Vout3. VCR out

FRONT V

FRONT C FRONT Y GAV

B5B-PH-K-S

(0) (0)

VEF1040

CN390 392

KM200TA2 1

KM200TA6 7

KP200TA7L 1 2

-5.6V +5.6V
V+5.6V ADG V-5.6V V1 V2 V3

4053 INH

V-5.6V

V+5.6V

52045-0545

C351 0.1 YB

R368 1SS355 D355 1k R367 1k

C362 47/25

R384 R220p YB C220p YB

VCC 16

SW1 14

13 GND 12 VoutSWVin2 9

S-Y FUNC.SELECTOR

R47/25 YB

MON OUT

C354 0.1

SW5 Vin5

SW4 Vin3

LD/DVD Y

R376 100

100 47p CH C381

CN353(1/2) AKP7020

R382 C375 47p CH R373 R1k R0.1 YB C363 R363 1k 75 C368 R370 RD354 1SS355 D353 1SS355 D352 C370 1SS355 C367 0.1 C366 D351 1SS355 RR220p YB C220p YB

100k 100k 100k 100k 100k 100k 100k 100k 100k 100k 100k 100k 100k 100k 100k 100k 100k 100k
R496 R497 R498 R499 R500 R520 R521 R522 R523 R524 R525 R526 R527 R528 R529 R530 R531 R532

R467 R451 R459 4.7k

S1 S2 S3 S4 S5 S6 S7 S8 S9 S10

F.AV GND VDD

1000p YB 1000p YB R1504 STBY

GNDU F.AV

52151-1110

CN450 550

C453 C454
11 VIDEO 11 LED VCR LED TV LED DVD LED CD LED CDR LED 5 TUNER 5 LED AUX LED F.A

R509 100

220/35 XCH3011 C414

S505 POWER S506

CD S507
S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 VF 60

KEYKEY3 5

S451 RSTEREO/ DIRECT S452 SIGNAL SELECT S453 *2 S454 *2 S455 *2 S456 TONE S457 QUICK SETUP
S458 ADVANCED SURROUND S459 STANDARD S460 TUNING + S461 TUNING S462 STATION + S463

S466 *2 S467 *2 S468

1.2 0.6

CDR/TAPE R507 1.2k S508

R452 680

R468 680

*3 1.6k S509

52151-0710

R502 2.7k
S11 S12 S13 S14 S15 S16 S17 S18 S19 S20 S21 S22

51048-0700

S11 S12 S13 S14 S15 S16 S17 S18 S19 S20 S13

R453 820

R461 820

R469 820

R456 2.7k

R464 2.7k

IC401 PE5420A
A4 A3 A2 A1 AV4 AV3 AV1 AV2

7 ENTER 7

S501 *3 S502

R454 1.2k

D20PYY0708E

R470 1.2k

R462 1.2k

*2 S469 *2

1.8 KEY IN VOLTAGE [V]

R503 5.1k

*3 S503 *3 S504 DVD/LD

R455 1.6k

R463 1.6k

R471 1.6k

R504 13k

R457 5.1k

STATION R465 5.1k S464

R458 13k

R466 13k

TUNER EDIT S465

*3 VSX-D914, 814 S501 VIDEO DVR/VCR S502 S503 S508 S509 TV/SAT TUNER AUX

33 100k 40 R426

C415 C410 R425 100k R427 100k R550 0.01 YB 330 C411 0.01 YB D500

C412 47/50 -TS

*2 S453 S454 S455 S466 S467 S468 S469
VSX-D914, 814 MIDNIGHT/ LOUDNESS SPEAKER SBch MODE FL DIMMER INPUT ATT MPX BAND

R1503 STBY

FRONT KEY ASSY S451 : STEREO/DIRECT S452 : SIGNAL SELECT S453 : MIDNIGHT/LOUDNESS S454 : SPEAKER S455 : SBch MODE S456 : TONE S457 : QUICK SETUP S458 : ADVANCED SURROUND S459 : STANDARD S460 : TUNING + S461 : TUNING S462 : STATION + S463 : STATION S464 : TUNER EDIT S465 : CLASS S466 : FL DIMMER S467 : INPUT ATT S468 : MPX S476 : BAND

R619 R621

R623 R624 C615 W553

R606 W552 C603 R639 R605

R604 R602

R756 R753
RISK OF FIRE-REPLACE FUSE AS MARKED.
C616 W724 W555 W556 W557 W558 Q606

R626 Q605 D603 D608

491010 IC605

R601 R607

R608 C606 O.L. C613
REMPLACER LE IC LINKS COMME INDIQUE. DE CHEZ ROHM CO.LTD.

R751 RY751 C751

W758 W535

W537 W538

R612 W527

C607 W512

C608 IC601 word surface

D604 R676

D675 R616 D676 R618
REPLACE IC LINKS AS MARKED.MFD.BY LITTELFUSE INC. 491001 IC603

W534 D751

RD602 1

D721 KN601 D722

W516 W517

31 W511

TUBE SIDE

4 IC1 7

00BPCA

SL SR C SB GND

C755 C753 3

C754 10

R/CRY HP SW B RY +12V A RY UG UG U+5V ACRY W UP -VF AC2 AC1 REG B REG B REG G REG G REG B REG B DREG DREG DREG DREG
4.6 F. DISPLAY, R. ENCODER, P. SW & FUNC KEY, H. P. and F. KEY ASSYS

M FRONT DISPLAY ASSY

XNP3074-B
C412 V401 W252 W290 W266 WWW260 W261 W262 W263 W264

C10 11

11 VIDEO LED 10 DVR LED 9 TV LED 8 DVD LED 7 CD LED 6 CDR LED 5 TUNER LED 4 AUX LED 3 F.A 2 GNDU 1 F.AV

W254 W255

I.C.T. F.C.

CN450 1

S462 S461 S460

FRONT KEY

S459 S458 TUNING TUNING +
1 F.AV 2 GNDU 3 VDD 4 KEYKEYKEYENTER
STATION STATION + STANDARD
W288 S464 S465 S469 W265 S468 S467 W286

BAND (MPX)

MPX (INPUT ATT)
INPUT ATT (PTY SEARCH) (FL DIMMER)

(EON MODE) (MUTE)

O P. SW &

FUNC. KEY ASSY

C CN702
GNDU 2 HP SW 3 A MUTE 4 HP R 5 HP GND 6 HP L

R H.P ASSY

S504 DVD/LD

11 KN1551 R1552

D501 W300
11 VIDEO LED 10 DVR LED 9 TV LED 8 DVD LED 7 CD LED
6 CDR LED 5 TUNER LED 4 AUX LED 3 F.A 2 GNDU 1 F.AV
POWER SW & FUNCTION KEY

XWZ3763 XWZ3764

S505 POWER

M O P R

XWZ3768

S506 CD

S507 CDR/TAPE

S508 TUNER (FM)

S509 AUX (AM)

JA1551

S503 TV/SAT (DVD 5.1)

S502 DVR/VCR (TV/SAT)

S501 VIDEO (DVR/VCR)

R1554 R1553

XWZ3758

ADVANCED SURROUND S451

4.7 B TO B, DIGITAL IN, VIDEO and 5.1CH ASSYS

T DIGITAL IN ASSY

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

J 5.1CH ASSY

JA1901
DIGITAL IN XWZ3772 XWZ3773 XWZ3824

5.1 CH. IN

XWZ3760 XWZ3761 XWZ3827

B CN8017

WFRONT OPT 2 SHIELD 3 GNDD 4 D+5V 5 SHIELD

W202 W201 C324 C332

C331 5

KNCN1902

AG C -12V SW +12V SL AG SR W196

V CN951

8 CN307

A CN105

JA305 CN304 C309 C307 CN306 CN-12V 6 ADG 5 +12V 4 uG 3 SW.OUT 2 AG 1 SB OUT W191

JA352 W152 W153

W137 CN303

I VIDEO ASSY

W168 W138

XWZ3826

TXD RXD 4053INH 4053A FURNITURE RMC SRIN SROUT SWDET AMUTE V3 V2 V1 W295

W139 W140 C338 W169

XWZ3750 XWZ3751 XWZ3752 XWZ3753 XWZ3823

F CN803

R 31 3

CN301 CN390

XWZ3780 XWZ3781

BOARD TO BOARD

CN9 4053A FRONT V V3 V2 V1 V-5.6V ADG V+5.6V 4053INH

I J K T

+5V W192 ADG -5V
V+5.6V ADG V-5.6V V1 V2 V3 FRONT V 4053A 4053INH

K B TO B ASSY

L CN351 U CN551
4053A 4053INH V-5.6V ADG V+5.6V
FRONTV VIDEOVIDEO2 VIDEO1 J38 V-5.6V ADG CN392 V+5.6V

R321 C319 C317 R331 R332

R324 C320 C318 R334 R333

R336 R335

1 SR 2 AG 3 SL 4 +12V 5 SW 6 -12V 7C 8 AG

5.1 CH IN

C327 R343

XWZ3827 XWZ3760

XWZ3761

VIDEO ASSY

R387 R388 SB C333 Q304 Q303 D304

R314 C335

R389 R318 R319 R390

SW R317 C1360

LD/DVD
D302 C347 D301 C340 CG R306

C334 R315

MONI. C306 TV
C302 C305 C379 REC R310 R391
C1909 / R1903 C1908 R308 RG

XWZ3823 XWZ3826

5 SHIELD 4 D+5V 3 GNDD 2 SHIELD 1 F.OPT
10 OPTD+5V 8 GNDD 7 FRONT OPT 6 GNDD 5 GNDD 4 OPT3 (NC) 3 GNDD 2 GNDD 1 OPOUT
SR OUT 1 L301 L303 C1 FRONT V 4053A 4053INH
4053INH 4053A FRONT V V3 V2 V1 V-5.6V ADG V+5.6V
TXD RXD 4053INH 4053A FURNITURE RMC SRIN SROUT SWDET AMUTE V3 V2 V1
FV V3 V2 V1 V-5.6V ADG 1 1
L305 TXD R311 D306 D307 D305 R304
J37 XWZ3751 XWZ3752 XWZ3753
C304 RMC R393 C378 L304 SRIN RXD +5V ADG -5V V1 V2 V3

CN303 CN392 CN391

Q304 Q303 IC301

XWZ3750

C1907 C1906

1 R344 C5

CG C316 R340 C325 C344

C343 C SW

-12V ADG +12V uG SW OUT AG SB OUT

IC302 IC303

DIGITAL IN XWZ3824 J30

C1901 R1901

XWZ3773 XWZ3772 VCR

FUR R1902

4.8 S.VIDEO, F. OPT & MIC, COMPONENT and PRE-OUT ASSYS

C219, C220, C309C312 C5003,C9006 C264 C257, C258, C277, C278, C298 C307, C308, C364 C9011,C9014 C268 C391 C9003 (1F/5.5V)

RESISTORS

> R171, R172 > R173, R174 > R311, R312

Other Resistors

RS1/16S470J RS1/16S472J RS1LMF101J RS1/16S###J
CN105 CN103 CN104 CN108 CN101 8P CONNECTOR 11P CONNECTOR 13P CONNECTOR 5P CONNECTOR 17P CONNECTOR 52044-0845 52044-1145 52044-1345 52045-0545 52045-1745 52045-1945 B3B-PH-K KP200TA18L KP200TA20L VEF1040 XKB3017 XSS3004
CN106, CN112 19P CONNECTOR CN107 CONNECTOR POST CN10918P SOCKET CN11120P SOCKET 101103 JA101JA104 PCB BINDER X9001 CERAMIC RESONATOR (15.7 MHz)
AK4114VQ AK4628VQ DSPD56367PV150 IS61LV6416-12T IS63LV1024-12T NJM2391DL1-33 NJU7223DL1-18 PD8116A TC74HCU04AF TC74LVX244FT TC74VHCT244AFT TC7WH125FU TC7WU04FU UMD2N UN5112 R8506 R8201 Other Resistors RAB4C101J RS1/16S1802F RS1/16S###J
IC8201 IC8401 IC8501 IC8601 IC8602 IC8901 IC8902 IC8603 IC8101 IC8701
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
IC8702 IC8503 IC8502 Q8504 Q8503

Mark No. RESISTORS

XCH3015
> IC603 PROTECTOR(1A) > IC604IC607 PROTECTOR(125mA)
IC701, IC702 PROTECTOR(400mA) IC51 > IC601, IC602 Q703, Q721 Q702 Q696, Q697 Q704, Q722 Q605, Q606, Q633, Q655, Q656 Q683 Q701 Q601Q604, Q631, Q632 Q651Q654, Q681, Q682 Q51 D56, D601, D603, D606, D608 D631, D632, D651D654 D683, D684, D752, D754, D758 > D701, D702 D675D678 D711 D58, D712 > D51D55, D721D724 AEK7009 AEK7022 ICP-N10 NJM78M56FA PAC011A 2SA1145 2SA2005 2SC1740S 2SC1845 2SC2240 2SC2240 2SC5511 2SC5974A 2SC5974A DTC143ES 1SS133 1SS133 1SS133 D5SBA20 MTZJ16A MTZJ22D MTZJ5.1B S5688G

C701, C702 (5600/71V)

R617, R622, R639, R667, R668 R691 (0.22/5W) > R51 (2.2M/ 1/2W) > R52 > R615
ACN7094 ACN7094 RCN1080 RD1/2PM270J RD1/4PU331J RD1/4PUF101J RD1/4PUF101J RS1LMF4R7J RS1LMF4R7J RS2LMF392J RD1/4PU###J
> R751, R752, R755, R761, R762 > R772 > R753, R754, R756, R763, R764 > R771 > R711
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

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. Q696 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, Q683 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
Amp & Primary Assy Speaker

u-con IC9001 Pin 24

7.3.4 AMPLIFIER SYSTEM PROTECTION OPERATION SPECIFICATION
1. DC-abnormality detection DC detection is only enabled 2 seconds after power-on. If there is a fault in the power amplifier or a high-level signal lower than 5 Hz is input, the DC_DET port becomes L. If the L is detected, the microprocessor will perform as following flow chart. 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. 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.) Recovery The program restarts.
*A.MUTE : Audio mute command
2. Overload detection If the speaker terminals are short-circuited or low-load driving is detected, the OL_DET port becomes L. If the L is detected, the microprocessor will perform as following flow chart.
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

If the board connection from Main Assy to Amp&Primary Assy is interrupted, the BOARD_DET port becomes H. If the H is detected, the microprocessor will perform as following flow chart. 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. The power is shut off. Recovery The power is shut off even if the unit recovers.
4. Fan stop detection operation flow in the DC abnormality detection If the fan is forcibly stopped, the 'DC PROT' port becomes "L". Then an abnormality of fan is detected. When an abnormality of fan is detected, A.MUTE* is turned on, speaker relay is turned off, the "AMP_ERR" flashes on the display. The abnormality continues for 3 seconds. Continues. Recovery The program restarts.
The power is shut off. The power key is disabled.
However, when the following keys are pushed so that the key input of a line and the service can be carried out, power can be on. 1 TESTMODE ON (A55F+A55F) 2 When power off, push FRONT ENTER key + ADVANCED SURROUND key continuously 2sec. (Effective, only when power-off is carried out by DC detection)
7.3.5 AMPLIFIER FAILURE DIAGNOSIS FLOW CHART
Amplifier failure diagnosis flow chart
When DC detection is activated ("AMP_ERR" flashes on the display), failure (damage) of the power amplifier section is considered. As DC detection and fan stop protection circuits commonly use same abnormality detection port in microprocessor, please make sure that the operation of fan motor is in normal condition before proceeding to the troubleshooting of amplifier. Caution: When release the lock state of power key before repair, please be careful because there is the possibility that more damages will occur when turns on the power once again!
According to a symptom, perform the following confirmation beforehand. 1) Is the operation of fan motor in normal condition? 2) Are there any Fuses and IC protectors open? 3) After turn on the power, confirm that the supply voltage of the point that can be measured is appropriate. 4) Whether the voltage of pin3 of IC601 or IC602 is equal to (VL-0.7V). If not (eg, equal to VH), then change the corresponding power pack IC601 or IC602. 5) Furthermore, check the output DC voltage of each channel of power pack IC601 and IC602 to limit the failure channel and identify the defect power pack.
After identify the failure channel, check that each part is not damaged (resistor, diode. etc. value / open / short)

Remote control

1 RECEIVER This switches between standby and on for this receiver.
2 INPUT SELECT Use to select the input source. 3 MULTI CONTROL buttons Press to select control of other components (see Controlling the rest of your system).
4 Number buttons and other receiver/ component controls Use the number buttons to directly select a radio frequency or the tracks on a CD, DVD, etc.

CD-R/TAPE TUNER RECEIVER

DISC (ENTER) can be used to enter commands for TV or DTV, and can also be used to select a disc in a multi-CD player. The following are accessed by pressing the RECEIVER button first:
INPUT ATT Attenuates (lowers) the level of an analog input signal to prevent distortion.

FL DIMMER SR ENTER DISC

FL DIMMER Dims or brightens the display. SR+ Switches the SR+ mode on/off. 5 Tuner/component control buttons/ MCACC The following button controls (except MCACC SETUP) can be accessed after you have selected the corresponding MULTI CONTROL button (TUNER, DVD, TV/SAT, etc.) D. ACCESS After pressing, you can access a radio station directly using the number buttons. TOP MENU Displays the disc 'top' menu of a DVD.

DTV MENU

T.EDIT

TV VOL

INPUT SELECT
DTV MENU Displays menus on a digital TV. T. EDIT Press to memorize and name a station for recall.
GUIDE Displays the guides on a digital TV.
INPUT SELECT Use to select the TV function. TV CH +/ Use to select channels. 8 Component 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 controls above these buttons can be accessed after you have selected the corresponding MULTI CONTROL button (for example DVD/LD, DVR/VCR or TV/SAT (when connected to a DTV)). DTV ON/OFF Switches a digital TV on/off. DTV INFO Use to bring up information screens on a digital TV. MUTE Mutes the sound (or restores the sound if it has been muted). TUNER DISPLAY Displays TV information on-screen. MPX (Press TUNER first to access) Switches between stereo and mono reception of FM broadcasts. If the signal is weak then switching to mono will improve the sound quality. AUDIO Changes the audio language or channel on DVD discs. CH RETURN Returns to the last channel selected with DTV, SAT and some TVs. SUBTITLE Displays/changes the subtitles included in multilingual DVD-Video discs. CH +/ Use to select channels when using a TV, VCR, DVR, etc.
CLASS Switches between the three banks (classes) of radio station presets. MENU Displays the disc menu of DVD-Video discs. It also displays TV and DTV menus. MCACC SETUP (Press RECEIVER first to access) Use to setup your speaker system using Multi-Channel Acoustic Calibration (MCACC).
BAND Switches between the tuner AM and FM bands. RETURN Press to return to the previous menu with DVDs or to select closed captioning with DTV. 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 TV CONTROL buttons These buttons are dedicated to control the TV assigned to the TV CONT button. Thus if you only have one TV to hook up to this system assign it to the TV CONT MULTI CONTROL button. If you have two TVs, assign the main TV to the TV CONT button.

AUDIO/VIDEO MULTI-CHANNEL RECEIVER

VSX-D814

DVD/LD

TV/SAT

DVR/VCR

MULTI JOG

CD-R/ TAPE/MD

MASTER VOLUME

STANDBY/ON
STATION TUNING STANDARD ADVANCED SURROUND STEREO/ DIRECT SIGNAL SELECT MIDNIGHT/ LOUDNESS SPEAKERS SB CH MODE MULTI JOG TONE QUICK SETUP

LISTENING MODE

PTY SEARCH EON MODE
MCACC SETUP MIC DIGITAL IN
VIDEO INPUT S-VIDEO VIDEO

L AUDIO R

TUNER EDIT

PHONES

ORDER NO.

RRV2929

VSX-D814-K

VSX-D814-S

VSX-D814-K VSX-D814-S
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
MYXJI MYXJI AC220-230V AC220-230V

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 2004

T-ZZK APR. 2004 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.

Specifications and the design are subject to possible modifications without notice, due to improvements.

Cleaning the unit

Use a polishing cloth or dry cloth to wipe off dust and dirt. When the surface is dirty, wipe with a soft cloth dipped in some neutral cleanser diluted five or six times with water, and wrung out well, and then wipe again with a dry cloth. Do not use furniture wax or cleansers.
"DTS" ,"DTS-ES Extended Surround" and "Neo:6" are trademarks of Digital Theater Systems, Inc.
Manufactured under license from Dolby Laboratories. "Dolby", "Pro Logic", "Surround EX", and the double-D symbol are trademarks of Dolby Laboratories.

Accessories

RECEIVER

SOURCE

MUL C TI ONTROL

Microphone (APM7004)

Microphone Stand (AEB7269)
AM loop antenna (ATB7013)
FM wire antenna (ADH7030)
AA size IEC R6 Dry cell batteries (x2)
Remote control unit (XXD3074)
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

PACKING SECTION Parts List
Mark No. 1 NSP NSP Description FM wire antenna Warranty Card AM loop antenna Alkaline Dry cell batteries (AA/R6) Operating instructions (English/Italian) Remote Control Unit Battery Cover Literature Bag Packing Sheet Left Pad V1 Part No. ADH7030 ARY7065 ATB7013 VEM1031 XREXXD3074 AZA7424 AHG1180 AHG7069 XHAOperating instructions (Dutch/Spanish) Operating instructions (French/German) XRC3117 XRC3118 Mark No. NSP 15 Description Right Pad V1 Packing Case MIC Stand 45 Microphone Assy Accessory Board R6 Part No. XHA3142 See Contrast table(2) AEB7269 APM7004 XHB3008

NSP 10

(2) CONTRAST TABLE VSX-D814-K/MYXJI and VSX-D814-S/MYXJI are constructed the same except for the following :

ICNJM2581M

COMPONENT OUT Cb

1551 6

14.1/24.1 14.2/24.9

CN702 IC110 uPC4570G2 (PRE AMP) CN106

CN601 11

Q682 IC108 BD3813FS

Q681 IC24 IC602 26

Q653 27

IC601 RY24

IC601 RY21

ICIC109 DB3812F 1

5 IC112

18 CN111

3 CN302

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

A CN111 Stby+5.6V IC51

D51-D54 T51
(COMPONENT SEL) NJM2595M CN301
FL AC +12V IC801 IC802 IC803 IC804 IC806 D801D804 D721D724

CN111 -12V D+5V

CN8003 A+5V D+5.6V CN111
3.2 OVERALL WIRING CONNECTION DIAGRAM

511/CN511

404 51063-51063-0705 CN511 None J42 D15A07-075-2651
FRONT VIDEO & OPT & MIC ASSY (XWZ3771)

R.ENCODER ASSY (XWZ3822)

FRONT DISPLAY ASSY (XWZ3756) CN450

CNXDD3118-

J30 J32 J29 J31 17/110

XDD3101J35 19/130 CN254

CN252 18

7/100 D20PYY0708E

FRONT KEY ASSY (XWZ3758)

XDD31255/260

XDX30235/480

XDX3022-

AMP INPUT ASSY (XWZ3804)

FRONT VIDEO IN

XDD312619/220 J43

J32 CN108 CN107

XXM3007

CN8012

19 CN8007

18 CN109

B B 1/2, B 2/2

MAIN ASSY (XWK3123)

CN351 7

DSP ASSY (AWX1082)

S. VIDEO ASSY (XWZ3776)

CN392 CN302 7

B TO B ASSY (XWZ3781)

XDD3104J38 5/80

J34 11/130

13 CN8003

XDD3150 CN104 J33 13/110

KN8101

CN8017
To Chassis XDD3127J37 10/50

XDD3151 CN307 8/140 J48

REGULATOR ASSY (XWZ3799)

CN1902

CN1901
DIGITAL IN ASSY (XWZ3773)
FM/AM TUNER UNIT* 5.1CH ASSY (AXX7170) (XWZ3760) * No schematic diagram

J36 XDD3102- 23/80

VIDEO ASSY (XWZ3753)

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

XDD3149

9 CN301

D20PYY1107E
P. SW & FUNC. KEY ASSY (XWZ3764)

D20PYY0630E

J47 6/300

H.P. ASSY (XWZ3768)

XDD3107J22 3/120
NOTES: When ordering service parts, be sure to refer to EXPLODED VIEWS and PARTS LIST or PCB 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. : The power supply is shown with the marked box.
TRANS3 TRANS4 ASSY ASSY (XWZ3778) (XWZ3814)

CN891 TRANS4

J5 J3 J4 (J8) TRANS3

MAIN TRANS

TRANS1 TRANS2 ASSY ASSY (XWZ3811) (XWZ3807)

C C 1/2, C 2/2

851 D20PYY0715E J21 7/150
B*B-PH-K-S PH CONNECTOR 1.25mm FFC 1.25mm REVERSE FFC 2.0mm FLAT CABLE
AMP& PRIMARY CN702 ASSY (XWZ3793)

701 CN604

1.5mm FLAT CABLE J1 BOARD IN 1.25mm FFC CONNECTOR(L)

XDD3105(tape 20mm)

J2 J46 7/140 FU1
1.25mm FFC CONNECTOR 2.0mm CABLE HOLDER 1.5mm CABLE HOLDER

CN1575

2.0mm WIRE TRAP KP200TA**L 2.0mm BOARD to BOARD KM200TA** 2.0mm BOARD to BOARD AKP7070, AKP7073 1.25mm BOARD to BOARD AKP7059, AKP7062 1.25mm BOARD to BOARD AC CODE SOCKET AC CODE CONNECTOR
COMPONENT PRE-OUT ASSY ASSY (XWZ3777) (XWZ3779)

AC CORD

VDG1080

3.3 MAIN ASSY (1/3)

R142 R141 3-A1 TL JA101 C198 C197 *1 *1 CH CH STBY STBY R116 R115 C141

(L) (L)

C182 C181 *1 *1 CH CH

L AUX R

C121 10/50

3-A1 TR

100K 100K

C142 10/50

R130 330

*1 *1 C102 C101

C184 C183 *1 *1 CH CH

GND (CHASSIS)

JA101 L

47K GNDA

C122 10/50 C123 10/50 R123 47K

R101 330

R102 330

C124 R124

XEF3001-A

GNDA 47K

10/50 R103 2.2K

FUNCTION

10/50 47K R125 C151 100p C152 100p IC101 BD3841FS-TBB 15 16

L103 *1 *1 C104 C103

22p CH

QTL1013

C1041C1031

(L) GNDA C125

IC106 (2/2) *+ GDAC 7 8

C262 TS 2.2/50 R262

R264 3.3K C264

R266 6.8K 0.022u C266

R268 39K 5 + 6 R272 R270 1.2K 2.7K C270 TS 10/50 R276 R278 C278 4700p 100 47K

INSWA 2-B1

4 R274 270
TO REGULATOR ASSY (FOR ANALOGUE LINES)

MYXJI 100p

XKB3017

uPC4570G2-TFB

VSX-D814-K 17

3.4 MAIN ASSY (2/3)

R301 4.7k R302 4.7k

C308 4700p 4700p C307

C301 10/50 C302 10/50

C309 C310 C311 C312

0.1u/16 0.1u/16 0.1u/16 0.1u/16

R304 100

(FR) (FL)

MVRATT 10/50 C321

GND FLOUT

R303 100

GND GOUTFL VINFL GOUTFR BNF1L BNF2L INFLA INCA INSRA INSLA INSWA INSBA INFRB INFLB INCB INSRB INSLB INSWB INSBB

INFLA INCA

INSRA INSLA INSWA INSBA INFRB INFLB

GND GOUTSW

GOUTSR

GOUTSL

C317 100p C318 100p R317 1K

CH C330 0.01

C306 10/50

C304 10/50

C303 10/50

C305 10/50

C319 0.01

6 CH E-VOL

IC108 BD3813KS_TBB

(SR) (SL) (SW)

DATA CLK
VCC 18 GND 17 VEE 16 VDD 15

1SS355

TNFL BNF1R
28 GND 27 R307 COUT GND R306 SROUT 25 GND R305 SLOUT GND 22 R308 SWOUT GND 20 SBOUT 19

C322 10/50

CH R318 1K

C329 0.01

C341 10/50 100K 100K 100K R352 R351

GNDA GNDA

GNDU GNDA

A 1/3 A 3/3

VLDT VLCK

10/50 C342

TO 5.1 INPUT ASSY

52044-0845

AG C -12V

R316 100

C313 100p

GNDA V+12

10/50 R367 100K R391

SW +12V SL AG SR

V+7 R313 1K 1K

C314 100p

100K Q361 E C
OUTOUTSEL DGND 10 MUTE DA 9 CL 8

GNDU C362

IC109 BD3812F-TBB 1 IN1 CAGND1 RIN2 STBY 4 AGNDVEE 6 AGNDVCC

2 CH E-VOL (SB CH)

V+7 C316

R371 4.7K B 2SC3326

10/50 R310

C315 0.01

R382 0.01 GNDA GNDA 2.2k

1.RESISTORS

Unit: k-k, M-M or unless otherwise noted. Rated power: 1/10W unless otherwise noted. Tolerance: (J) 5% unless otherwise noted.

2.CAPACITORS

Unit: p-pF or F unless otherwise noted. Ratings: Capacity(F)/Voltage(V) unless otherwise noted. Rated Voltage: 50V expect for electrolytic capacitors. JA:CEJA

A 2/3 A

: AUDIO SIGNAL FLOW

PRE-AMP

0.1/16 YF C391

TO AMP INPUT ASSY

R326 R324
Q321 2SC3326 R321 E 4.7k B C C 4.7k B R322 Q322 2SC3326

R325 R323

R329 100k

+ FL R327

C*1 100p CH 47/25

BCKO LCKO FDTO SDTO CDTO

IC8401 AK4529VQ

RIN LIN NC

RIN GNDA(DAG) LIN GNDA(DAG) FRO VCOMG FLO RECMUTE SRO GNDA(DAG) SLO GNDA(DAG) SWO GNDA(DAG) CO GNDA(DAG) SBRO GNDA(DAG) SBLO

R8016 0

C8006 stby R8002 R8003 ATL7002 R8004 ATL7002 R8005 stby LL8003 stby L8004 V5DL8005 RR8011 R8019 RR8015 stby RRC8903 stby GNDD
IC8902 NJU7223DL1-18 IN 2 0.YB OUT 1

R8012 0

C8904 100/16

12 GVCM V5D1

V5D1 IC8901 C8004 stby NJM2391DL1-33 IN OUT 2

GNDD GCH

C8011 stby C8012

BCKI FDTI

CN8003
AKP7070 C8007 CH 470p C8008 CH 470p C8009 YB 0.01 C8010 YB 0.1 GNDD (DSP) GDAC GNDD (DSP) GNDD (DIR)

KN8201 VNF1084 stby

OPTOUT or uGRTN
GNDD (1394) V+5A GNDA (DAG) GNDA (DAG) V+5D V+5D GNDD GNDD OPTIN or DGRTN DGRTN OPTIN or uGRTN uGRTN

C8013 stby C8014 stby

NOTES: NO INDICATED PARTS IS. CCSRCH****50-T CKSRYB****50-T CKSRYB333K16-T CKSRYB104K16-T CKSRYB105K6R3-T CEV***M**-T RS1/16S***J-T UNLESS OTHERWISE NOTED

KN8501 VNF1084 stby

B 1/2 DSP ASSY

(AWX1082)

VSX-D814-K 23
GNDD GNDD C8704 C8701 10/16 C8702 YB 0.1 C8703 CH 470p L8701 QTL1013 V38 V3D V5D1 L8702 QTL1013 V56 GNDD

B 2/2 A

R8811 100k R8812 100k R8813 100k

3.7 DSP ASSY (2/2)

HREQ SDO0 SDO1 SDO2 SDO3 VCCS GNDS SDI1 SDI0 FST FSR SCKT SCKR HCKT HCKR VCCQL GNDQ VCCQH PB12 MUTE PB11 PB15 PB14 VCCS GNDS ADO

Q8504 (2/2) UMD2N

JTAG TP5 TP4 TP3 TP2TP1

144143142141140139138137

Q8504 (1/2) UMD2N

470p CH C8513

IECK IERT IEDI 5V IEDI

RRR8706

10/16 C8705 YB 0.1 C8706 CH 470p
IEDI DSRT IECK DSSS CLK DATA

330 R8704 IC8702 330

IECK DSMD MODC IEIT IEDO
GNDD YB 0.1 CH 470 C8553 GNDD 1 C8552 R8807 100k R8806 100k R8805 100k R8802 100k 100k R8801 100k R8810
3V IC8701 Level shifter TC74LVX244FT
TC74VHCT244AFT Level shifter

MUTE MODC ERR

330 R8708 330
1G 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 GND VCC 2G 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1
1G 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 GND

BASIC MODEL DVD-A MCACC 1394

WR RD AA1 AA0 BG A0

D17 D16 D15 GNDD VCCD D14 D13 D12 D11 D10 D9 GNDD VCCD D8 D7
stby C8546 CH C8532 CH C8534 CH C8536 100/16

R8534 10K

CH C8526 CH C8528 R8608 0

10K RRD

470p C8527 0.1 YB R8606 0.1 YB 470p C8529

CH C8530

L8502 470p C8531 0.1 YB 470p C8533 0.1 YB 470p C8535 0.1 YB 470p C8537 0.1 YB ATL7002 GNDD R8537 stby C8547 100/16

0 R8533 0

0 V311 R8605

R8602 10k

L8602 ATL7002
stby L8603 ATL7002 0.1 YB
L8601 ATL7002 V310 R8601 IC8601 stby C8613

C8609 C8610

A4 A5 A6 A7 A15 A12 A13 A14
UN5212 BASIC MODEL AAC&96DTS MCACC AAC&96DTS &MCACC IC8601 C8601 C8602 C8603 C8604 L8601 NO USE USE USE IC8602 C8605 C8606 C8607 C8608 L8602 NO USE USE NO USE IC8603 C8609 C8610 L8603 A16 USE USE USE A11 A9 A8 A13 A14 A17 AA0
IC8603 PD8116A(MR27V401E) ROM 470p CH

RD A10 AA1

A16 A15 A14 A13 OE

IC8602 IS63LV1024-12T

A10 A8 A9 A11

D23 D22 D7 D6

C8605 470p CH 470p CH C8608 0.1 YB C8607 0.1 YB C8606

IS61LV6416-12T

A0 A1 A2 A3 AA2 D3 D2 D7 D6 D5 D4 D3

D8 D9 D10 D11

YB 0.1 470p CH C8604 C8603

D21 D20

YB CH 470p 0.1 C8602 C8601

S-RAM 16BIT

D12 D13 D14 D15 S-RAM 8BIT A15 A12 A7 A6 A5 A4 D2 D1 D0 A0 A1 A2 A3 A7 A6 A5 A4 D5 D4 A14 A13 A16 A12 A15 A11 A9 A8 A10

D19 D18 D17 D16

NO USE NO USE USE

NO USE USE USE USE

A11 A9 A8 A13 A14 A17 A18 Vcc DC A16 A15 A12 A7 A6 A5 A4 R8523
OE A10 CE D7 D6 D5 D4 D3 Vss D2 D1 D0 A0 A1 A2 A3
1 AAAACS 6 I/O I/O VCC 9 GND 10 I/O I/O WE 13 AAAA7
I/O 08 I/O 07 GND VCC I/O 06 I/O 05 A12 A11 A10 A9 A8
1 AAAAACE 7 I/O I/O I/O I/O VCC 12 GND 13 I/O I/O I/O I/O WE 18 AAAANC
AAA41 OE 40 UB 39 LB 38 I/O I/O I/O I/O VSS 33 VCC 32 I/O I/O I/O I/O NC AAAA23 NC

A3 A2 A1 A0

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

1SS133 R624

330 R602 (FR) 2.2k Q602 2SC5974A C606 C608 100P 4.7/50 R608 C604 330P 430 R610 27k

1.8k C616 R626

C 1/2 AMP&PRIMARY ASSY (XWZ3793)

IC601(1/3) PAC011A FR 14

D608 1SS133 O.L. Q606 2SC2240 NP R628 22k IC604 AEK7022 (10A)

KM200TA18

R604 4.7k 1 1000P stby C9 R631 (C) 2.2k R606 4.7k
R612 R614 27k C612 C614 6.8p 6.8p R630 820

C AMP & PRIMARY ASSY

> IC52 PROTECTOR(500mA) > IC603 PROTECTOR(1A) > IC604IC607 PROTECTOR(125mA)
IC701, IC702 PROTECTOR(400mA) IC51

> IC601, IC602

AEK7005 AEK7009 AEK7022 ICP-N10 NJM78M56FA PAC011A 2SA1145 2SA2005 2SC1740S 2SC1845 2SC2240 2SC2240 2SC5511 2SC5974A 2SC5974A DTC143ES 1SS133 1SS133 1SS133 1SS133 D5SBA20 MTZJ22D MTZJ5.1B MTZJ8.2A S5688G
R617, R622, R639, R667, R668 R691 (0.22/5W) > R52 > R615 > R751, R752, R755, R761, R762

> > > >

Q703, Q721 Q702 Q696, Q697 Q704, Q722 Q605, Q606, Q633, Q655, Q656 Q683 Q701 Q601Q604, Q631, Q632 Q651Q654, Q681, Q682
ACN7094 ACN7094 RD1/2PM270J RD1/4PU331J RD1/4PUF101J RD1/4PUF101J RS1LMF4R7J RS1LMF4R7J RS2LMF332J RD1/4PU###J
R772 R753, R754, R756, R763, R764 R771 R711 Other Resistors
CN604 7P CONNECTOR CN53 23P CONNECTOR CN702 6P JUMPER CONNECTOR H51, H52 FUSE CLIP > T51 STANDBY TRANSFORMER CN601 18P PLUG CN51 AC CODE SOCKET KN51, KN601 EARTH METAL FITTING CN751 SP TERMINAL 8-P(V0) CN753 SP TERMINAL 6-P(V0) CN752 SP TERMINAL 4-P(V0) 52045-0745 52045-2345 52147-0610 AKR7001 ATT7040 KM200TA18 RKP1751 VNF1084 XKE3017 XKE3018 XKE3019 XKP3047
Q51 D56, D57, D601, D603, D606 D608, D631, D632, D651D654 D683, D684, D751D754 D757, D758

> D701, D702

D711 D58, D712 D602, D604, D681, D682 > D51D55, D721D724

L751L754, L761, L762

> L51 LINE FILTER

> 701 7P CABLE HOLDER

ATH1004 XTF3004

SWITCHES AND RELAYS

RY51 RY751RY754 XSR3006 XSR3007
> IC853 PROTECTOR (3A) > IC851, IC852 PROTECTOR (4A)

AEK7015 AEK7018 XKP3047

C707, C708 (0.01/AC250V) C611C614, C636, C637 C661C664, C686, C687 C615, C616, C638, C665, C666 C688 C775, C776 ACG1005 CCPUCH6R8K50 CCPUCH6R8K50 CEANP2R2M50 CEANP2R2M50 CEANP470M50

851 7P CABLE HOLDER

E TRANS3 ASSY
TRANS3 ASSY has no service part.
IC803, IC804 IC801, IC805 IC806 IC802 Q801, Q803, Q805 Q802, Q804, Q806 D809D811 > D801D804 NJM78M05FA NJM78M12FA NJM78M56FA NJM79M12FA DTA124ES DTC114ES MTZJ6.2B S5688G
IC301 Q302 Q303 Q301 D301, D302, D305, D306 D307 D303, D304 NJM2595M 2SA1515 2SC3326 2SC3377 1SS355 UDZS5.1B UDZS6.2B

C811, C815 C813 C801, C802 C809 C808 C805, C806 C803, C804, C807, C810, C812 C814 CEAT101M10 CEAT101M16 CEAT222M25 CEAT472M16 CEHAT101M10 CEHAT101M16 CKPUYF103Z25 CKPUYF103Z25
L301L306 CHIP SOLID INDUCTOR QTL1013
C347 C307C310, C312, C314, C338 C1360,C302, C379 C339, C340 C304C306 C333 C311, C313 CCSRCH470J50 CEAT470M25 CKSRYB103K50 CKSRYB104K25 CKSRYB221K50 CKSRYB331K50 CKSRYB473K25

R801 RS3LMF331J

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

> R313, R316

RS3LMF390J RS1/16S###J
CN303 13P CONNECTOR JA305 PIN JACK(4P)YELLOW CN302 7P SOCKET CN301 9P SOCKET JA352 JACK CN306 2P PIN JACK JA351 MINI JACK(4P) /W SW 52044-1345 AKB7100 KP200TA7L KP200TA9L RKN1026 XKB3041 XKN3015

CN803 7P PLUG

IC251 Q257 Q251, Q256 Q252 Q254 Q253, Q255 D251, D252 D253 D254 NJM4558D-D 2SA933S 2SC5974A 2SD1858X DTA124ES DTC124ES 1SS133 MTZJ27D MTZJ5.1B
C342C345 C321, C324, C331, C332 C1364 C316 C317, C318, C325, C326 CCSRCH101J50 CEAT4R7M50 CKSRYB102K50 CKSRYB103K50 CKSRYB221K50
C251 C254 C252, C253 CEANP470M25 CEAT101M25 CKPUYF103Z25
All Resistors RS1/16S###J
CN307 8P CONNECTOR CN309 PIN JACK(4P) 52044-0845 XKB3035
All Resistors RD1/4PU###J
CN251 CN254 CN253 CN252 3P CONNECTOR 19P CONNECTOR 18P SOCKET 3PIN CONNECTOR 52044-0345 52044-1945 KP200TA18L S3B-EH
CN392 5P CONNECTOR CN391 7P PLUG CN390 9P PLUG 391 PCB BINDER 52045-0545 KM200TA7 KM200TA9 VEF1040
TRANS1 ASSY has no service part.

IC351, IC352 D351D358

NJM2595M 1SS355
S511 S513 ROTARY ENCODER S512 ROTARY ENCODER VSG1024 XSX3005 XSX3006
C375, C376, C381C386 C352, C355, C358, C361C363 C366 C372, C373 C351, C353, C354, C356, C357 C359, C367 C364, C365, C368C371 CCSRCH470J50 CEAT470M25 CEAT470M25 CKSRYB103K50 CKSRYB104K25 CKSRYB104K25 CKSRYB221K50
511 CABLE HOLDER (7P) 51063-0705

All Resistors

RS1/16S###J
O P. SW & FUNC. KEY ASSY

D501D508 SLI-343DCW

CN353 CN352 CN354 CN351 2-4P MINI DIN SOCKET 3-4P MINI DIN SOCKET CONNECTOR POST 7P SOCKET AKP7020 AKP7043 B5B-PH-K KP200TA7L

S501S509 VSG1024

IC401 Q484 Q441, Q442 D403D405 D401 D500
PE5420A 2SA1037K DTC124EK 1SS355 DAN202K SLI-343DCW

Note : This photograph may show a different model. however, the method for disassembly 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. Heat-sink caution in the disassembling : Because Heat-sink becomes hot, please pay attention.

B TO B Assy

S.VIDEO Assy

VIDEO Assy

DIGITAL IN Assy

PRE-OUT Assy

COMPONENT Assy

DSP Assy

5.1CH Assy

TRANS 2 Assy

MAIN Assy

AMP INPUT Assy

FRONT VIDEO & OPT & MIC Assy

TRANS 1 Assy

TRANS 3 Assy TRANS 4 Assy

R. ENCODER Assy

M FRONT DISPLAY Assy P R

H.P. Assy FRONT KEY Assy

P. SW & FUNC. KEY Assy
NOTE : This photograph is VSX-D914-K.

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

PEG062A, PE5420A
7 PEG062A (MAIN ASSY : IC9001)

System Control MCU

7 Pin Arrangement (Top View)
TUNER DO TUNER CLK TUNER DI TUNER CE 6 OHM 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 DISP DO DISP CLK GND CNVSS NC NC XRESET XOUT GND XIN 5V
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

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 , 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 For SR+ testmode only Data input signal for communication with DIR/DAC Chip select signal for communication with DIR/DAC
No. 59 P43/A19 P42/A18 P41/A17 P40/A16 P37/A15 P36/A14 P35/A13 P34/A12 P33/A11 P32/A10 P31/A9 Vcc
Pin Name INPUT_ATT GAIN_SEL AMUTE RY_B RY_C/R RY_A HP DET RY-AC MVRATT LOW_CONSUMPTION EVR CLK 5V EVR DT GND NC 4053INH 4053A furniture SWDET VIDEO3 VIDEO2 VIDEO1 OL DET NC RDS CLK RDS DT/NC RDS FM+/NC NC NC NC TUNER DO TUNER CLK TUNER DI TUNER CE 6 OHM NC NC NC NC NC NC NC NC SIMUKE1 SIMUKE2 AVSS NC VREF AVCC NC
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 I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O Connect to VCC Connect to VCC I/O lnput 1 to switch region lnput 2 to switch region Connect to VSS
Pin Function Analog input ATT(H : ATT ON) Gain select (5.1ch and Stereo of analog input : H ) System mute Speaker B relay ON/OFF Rear/Center Speaker relay ON/OFF Speaker A relay ON/OFF HP detect, H : detected AC relay ON/OFF ATT control of master volume (less than -15dB : L) If stop mode, port L, else H Clock signal for Function and E-volume Data signal for Function and E-volume
P30/A8(/_/D7) Vss P27/A7(/D7/D6) P26/A6(/D6/D5) P25/A5(/D5/D4) P24/A4(/D4/D3) P23/A3(/D3/D2) P22/A2(/D2/D1) P21/A1(/D1/D0) P20/A0(/D0/_) P17/D15/INT5 P16/D14/INT4 P15/D13/INT3 P14/D12 RDS P13/D11 RDS P12/D10 P11/D9 P10/D8 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
Component terminal control Component terminal control Furniture control signal SWSP detect SWSP detect SWSP detect NJM2296 control (VIDEO input select) Detect overload of AMP Clock input signal for RDS module Data input signal for RDS module Power ON/OFF of RDS decoder
Data input signal for tuner contorol Clock signal for tuner contorol Data output signal for tuner contorol Chip select signal for tuner contorol If stop mode, port L, else L/H depends on selection.

2. Overload detection If the speaker terminals are short-circuited or low-load driving is detected, the OL_DET port becomes L. If the L is detected, the microprocessor will perform as following flow chart.
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 Board detection is only enabled 2 seconds after power-on. If the board connection from Main Assy to Amp&Primary Assy is interrupted, the BOARD_DET port becomes H. If the H is detected, the microprocessor will perform as following flow chart. 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 2 seconds. Continues. The power is shut off. Recovery The power is shut off even if the unit recovers.
4. Fan stop detection operation flow in the DC abnormality detection If the fan is forcibly stopped, the 'DC PROT' port becomes "L". Then an abnormality of fan is detected. When an abnormality of fan is detected, A.MUTE* is turned on, speaker relay is turned off, the "AMP_ERR" flashes on the display. The abnormality continues for 3 seconds. Continues. The power is shut off. The power key is disabled. However, when the following keys are pushed so that the key input of a line and the service can be carried out, power can be on. 1 TESTMODE ON (A55F+A55F) 2 When power off, push FRONT ENTER key + ADVANCED SURROUND key continuously 2sec. (Effective, only when power-off is carried out by DC detection) Recovery The program restarts.
7.3.5 AMPLIFIER FAILURE DIAGNOSIS FLOW CHART
Amplifier failure diagnosis flow chart
When DC detection is activated ("AMP_ERR" flashes on the display), failure (damage) of the power amplifier section is considered. As DC detection and fan stop protection circuits commonly use same abnormality detection port in microprocessor, please make sure that the operation of fan motor is in normal condition before proceeding to the troubleshooting of amplifier. Caution: When release the lock state of power key before repair, please be careful because there is the possibility that more damages will occur when turns on the power once again!