Pioneer VSX-74-TXVI Schematic

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 2005

STANDBY/ON



INPUT

SELECTOR

PHASE
CONTROL

PHASE

MCACC

AUTO SURR/

CONTROL

POSITION

STREAM DIRECT

DIGITAL PRECISION

PROCESSING

VSX-74TXVi

AUDIO/VIDEO MULTI-CHANNEL RECEIVER VSX-74TXVi

HOME

STANDARD

ADVANCED

THX

SURROUND

SURROUND

MASTER
VOLUME

AUDIO/VIDEO MULTI-CHANNEL RECEIVER

VSX-74TXVi

VSX-74TXVi-S
VSX-72TXV
VSX-72TXV-S

ORDER NO.

RRV3197

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

Model Type Power Requirement Remarks

VSX-74TXVi KUXJ/CA AC120V

VSX-74TXVi-S KUXJC AC120V

VSX-72TXV KUXJ/CA AC120V

VSX-72TXV-S KUXJC AC120V

For details, refer to "Important Check Points for Good Servicing".

T-ZZK SEPT. 2005 printed in Japan

1234

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

3.1.1 OVERALL BLOCK DIAGRAM

A

CN101

HDMI IN 1

CN102

HDMI IN 2

CN301

HDMI OUT

AG

HDMI

RECEIVER

TRANSMITTER

IC101/IC301

DVD-A

S/PDIF

VSX-74TXVi ONLY

JA201

i.LINK(S400)

B

i.LINK(S400)

JA202

AF AF

1394

PHY LINK

IC201

Controller

Rate

IC301

DVD-A

AF

VSX-74TXVi ONLY

JA261

C

JA301

JA305
JA304
JA303
JA302

JA307

JA306

D

VSX-74TXVi ONLY

DIGITAL IN(COAX1)
DIGITAL IN(COAX2)

DIGITAL IN(OPT1)
DIGITAL IN(OPT2)
DIGITAL IN(OPT3)
DIGITAL IN(OPT4)

FRONT IN(OPT)

DIGITALOUT1(OPT)

DIGITALOUT2(OPT)

USB

XM radio

L

USB-S/PDIF

IC261

L

16 15

L

L

SELECTOR

IC304,IC305

DIR & DIT

96k/24bit

IC301

XMDT
IC281

DSD-LPCM

Converter

IC401

S/PDIF

AF

SELECTOR

IC402,IC403,IC405

L

SELECTOR

IC306-IC309

VSX-74TXVi ONLY

IC309 :

M

DSP1

DECODER

PORT

PROCESSING

Floating 32bit

IC101

L

A/D

96k/24bit

IC482

L

ATT

IC481

CN6205

CN6207 (1/2)

JA6301

CN6307

PHONO

CD

CDR
DVD

TV

SAT

VIDEO1

A

IC6203

IC6301

B

E

CN6308(1/2)
CN6309(1/2)

CN2804

DVR1
DVR2

iPod

AE

IC2932

INPUT SELECTOR

IC6201

D/A

L

&

LPF

IC951,IC952

(VSX-74TXVi ONLY)

VSX-74TXVi ONLY

K

IC2631

IC2636

CENTER

A

CN6207(2/2)
CN6308(2/2),

CN6309(2/2)

CN6208

F

20

CN6209

JA3451

1234

CDR REC

DVR1,2 REC

FL/FR

C/SW

SL/SR

SBL/SBR

MIC

C

IC3451

VSX-74TXVi

5678

A

B

SACD DIRECT

PCM DIRECT

* MCACC

Multi Channel Acoustic

Calibration System

M

DSP2

AdvancedMCACC

PORT

PROCESSING

24bit or 48bit

(Double Precision)

L

SELECTOR

IC315,IC316

IC201

<<TRIM>>

<<ANALOG PHANTOM>> <<PRE AMP>>

<<MASTER VR>>

K

K

IC2634

K

IC2633

L L

DAC

DAC

192k/24bit

DAC

192k/24bit

DAC

192k/24bit

192k/24bit

IC551,IC651,IC751,IC851

IC2637

K

IC2639

IC2638

K

K

IC2641

VSX-74TXVi ONLY

K

IC2638

IC552,IC652,
IC752,IC852,

LPF

LPF

LPF

LPF

IC2501

K

IC2525

IC2551

IC2575

<<POWER AMP>>

Q R X

D

CN3551

HEAD PHONE

CN4001

FL/FR

CENTER

CN4002

SL/SR

SBL/SBR

(Flexible)

AE

Multi-Room & Source

CN2805

FL/FR
C/SW
SL/SR
SBL/SBR

CN2806

JA6301

C

D

E

F

56

VSX-74TXVi

21

7

8

1234

3.1.2 COMPOSITE V BLOCK DIAGRAM

A

F

CN5443

OUT

MONITOR

JA2005

TK15420M

B

IC2005(1/2)

TK15420M

IC2005(2/2)

C

SWA

TO

15

HDMI(OSD)

THROUGH

123

HDMI

4

11

OSD

THROUGH

5

IC2003

6

INH

14

MUTE

13

12

D

CN2002

IC2007

SWB

10

INPUT

SELECT

MRV

11

OSD IC

PDC131A

SWC

9

OSDCS

OSDRT

OSDDT

2346857

9

11

23

OSDRT

OSDDT

OSDCS

OSD

13

CD74HC4053PWR

IC2004

EXPCK

10

EXCK

6

INH

MR

141511

EXPST

EXPDT4

EXPOE

FV

5

3

14567

STROBESTROBE

DT4DT5

Q6

2

131112

MRC

31456

CLK CLK

Q6Q8Q7

2

131112

SWA

13

OSD

MUTE

RECSEL/

12

MRA

VSW1

VSW2

VSW3

Q4

Q1Q2Q3

IC2008

V52A

V2M

SWB

SELECT

524

15

VINH

IC2009

OE

15

NC
3109

7

CD4094BNS

Q8Q7OE

V52B

V1M

Q1Q2Q3Q4Q5

SWC

2NDZONE

MRB

14

Q5

PORT

EXPANDER

DT5

10

MRINH

14

PORT

EXPANDER

CD4094BNS

V52A

V52B

1

CD74HC4052PWR

MUTE

13 15 10

2

CN2001

SWA:SWB:SWC:VINH

VSW1:VSW2:VSW3:VINH

MRA:MRB:MRC:MRINH

·USING EXPANDER PORT

·USING EXPANDER PORT

<CD74HC4051PWR x1 (SW IC2001)>

·CONTROL U-COM PORT

<CD4094BNS(EXPANDER IC2008)>

COMPOSITE V ASSY COMPOSITION IC DATA

VMUTE

VIN

VOUT

<CD74HC4053PWR x1 (SW IC2003)>

<CD74HC4051PWR x1 (SW IC2002)>

EXPST:EXPCK:EXPOE

Q1:VSW1/Q2:VSW2/Q3:VSW3/Q4:MRA

Q5:MRB/Q6:MRC/Q7:V52A/Q8:V52B

·EXPANDER PORT NAME

INPUT DATA NAME:DT4

OUTPUT DATA NAME:DT5

V52A:V52B:MRINH

·USING EXPANDER PORT

·USING EXPANDER PORT

<CD74HC4052PWR x1 (SW IC2004)>

EXPST:EXPCK:EXPOE

·CONTROL U-COM PORT

INPUT DATA NAME:DT5

OUTPUT DATA NAME:---

·EXPANDER PORT NAME

<CD4094BNS(EXPANDER IC2009)>

CN4317

N

I-Pod

V1M:V2M

·USING EXPANDER PORT

<NJM2279M (RECOUT SEL IC)>

Q1:V1M/Q2:V2M/Q3:VINH/Q4:MUTE

Q5:MRINH/Q6:SWA/Q7:SWB/Q8:SWC

VSW1

VSW2

VSW3

3

INH VINH

IC2001

MAIN ROOM

E

CD74HC4051PWR

14 6

151312

11

10

145

9

2

MRINH

INH

IC2002

SUB ROOM

CD74HC4051PWR

14 6

151312

3

145

MRA

11

MRB

10

MRC

9

2

121110

SEL.

IC2006

REC OUT

345

V2M V1M

NJM2279M

I

TV

SAT

DVD

F

JA2001

22

1234

VIDEO1

JA2002

JA2004(1/2)

JA2003(1/2)

DVR1/VCR1IN

DVR2/VCR2IN

VSX-74TXVi

JA2004(2/2)

DVR1/VCR1 REC

DVR2/VCR2 REC

JA2003(2/2)

5678

3.1.3 S-VIDEO BLOCK DIAGRAM

A

IC2203

CN2203(3/3)

IC2204(1/2)

6

INH

Y THROUGH

OUT

MONITOR

Y

C

TK15420M

S-Y

13

Y HDMI

OSD Y

15

11716

IC2204(2/2)

MUTE

MUTE

S-V/HDMI

SELECTT

CN2202

TK15420M

IC2281

IC2282

S52A

S-C

3109 4

C HDMI

OSD C

245

EXPCK

EXPST

EXPOE

764

1

3 5

1152

OE

CLK

STROBE

Q1Q2Q3

456

SSW3

SSW1

SSW2

3

1152

OE

CLK

STROBE

Q1Q2Q3

567

SMRA

SMRC

SMRB

S52B

C THROUGH

CD74HC4052PWR

CN5442

F

DT4

DT2

FVC

FVY

3108

9

DT2

DT3

Q6

Q4Q5Q7

7

141312

S52B

S52A

10

DT3

DT4

Q6

Q4Q5Q7

141312

SRC2

SRC1

Q8

CD4094BPW

11

SINH

Q8

CD4094BPW

11

CN2205(2/2)

IC2208(1/2)

INH

6

IC2207

OUT A

14

REC OUT

DVR1/VCR1

YCY

TK15420M

13

OUT A,B

MUTE

Brank

752

15

11

REC OUT

DVR2/VCR2

CN2206(2/2)

C

TK15420M

IC2208(2/2)

SRC1

3109

OUT A,B

OUT A

Brank

EXPST:EXPCK:EXPOE

Q1:SSW1/Q2:SSW2/Q3:SSW3/Q4:S52A

Q5:S52B/Q6:OPEN/Q7:OPEN/Q8:SINH

·CONTROL U-COM PORT

·EXPANDER PORT NAME

·CONTROL U-COM PORT

<CD4094BPW(EXPANDER IC2281)>

S-VIDEO ASSY COMPOSITION IC DATA

TK15420M

IC2210(2/2)

IC2210(1/2)

SRC2

INH

6

IC2209

MUTE

4

16

OUT B

Brank

141511

CD74HC4052PWR

<CD4094BPW(EXPANDER IC2282)>

INPUT DATA NAME:DT2

OUTPUT DATA NAME:DT3

TK15420M

3109

13

OUT A,B

MUTE

Brank

752

EXPST:EXPCK:EXPOE

INPUT DATA NAME:DT3

OUTPUT DATA NAME:DT3

SSW1:SSW2:SSW3:SINH

Q1:SMRA/Q2:SMRB/Q3:SMRC/Q4:SRC1

Q5:SRC2/Q6:OPEN/Q7:OPEN/Q8OPEN

·EXPANDER PORT NAME

·USING EXPANDER PORT

<CD74HC4052PWR x1 (SW IC2203)>

<CD74HC4051PWR x2 (SW IC2201, IC2202)>

9 7 5 3 1

CN2201

SRC1

SRC2

OUT A,B

OUT B

MUTE

4

16

CD74HC4052PWR

S52A:S52B:SINH

SMRA:SMRB:SMRC:MRINH

SRC1:SRC2:MRINH

SDET

·USING EXPANDER PORT

·USING EXPANDER PORT

·USING EXPANDER PORT

<CD74HC4051PWR x2 (SW IC2205, IC2206)>

SYIN

SCIN

SYOUT

SCOUT

SDET

·OUTPUT DATA NAME

<CD74HC4052PWR x2 (SW IC2207, IC2209)>

<LA2205 (SDET IC2205)>

MRINH connect the signal line from the Port expander of COMPOSITE V ASSY.

CN4316

N

B

C

D

SDET IC

IC2271

SINH

6

IC2202

C SELECT

CD74HC4051PWR

14

151312

Y

YYC

STAND BY2

DVR1/VCR1 IN

CN2204(2/2)

CN2205(1/2)

3

C

SSW2

SSW1

11

10

145

C

DVR2/VCR2 IN

CN2206(1/2)

SSW3

9

2

CD74HC4051PWR

SELECT

Y REC

IC2205

MRINH

6

REC IN1

REC IN2

141513

REC

3

STBY1

12

REC

IC2201

Y SELECT

J

SINH

14 6 14

151312

Y

C

Y

S-VIDEO IN1

CN2203(1/3)

SSW2

SSW1

3

11

10

145

Y

C

S-VIDEO IN2

CN2203(2/3)

CN2204(1/2)

SSW3

9

2

C

STAND BY1

VSX-74TXVi

56

SMRA

11

STBY2

REC FVY

145

SMRB

10

REC

DVR1

SMRC

9

REC

2

DVR2

MRINH

SELECT

C REC

6

REC IN1

REC IN2

IC2206

CD74HC4051PWR

141513

7

REC

3

STBY1

12

REC

STBY2

145

SMRB

SMRA

11

10

REC

REC FVC

DVR1

SMRC

9

REC

DVR2

2

CD74HC4051PWR

E

F

23

8

1234

3.1.4 COMPONENT &VOL BLOCK DIAGRAM

A

E

EXPOE

EXPST

78562

COE

CST

CST

1

2

10

Q`S

CN5441

EXPDT

EXPCK

OSDCS

CCK

CDT2

CCK

DSW1

D53A

3

13

12

Q6

Q7

CCK

DINH

Q8

OSDRT

3

11

14131716191811975311316481217181910146

CN2504

CN2403

OSDRT

OSDCS

EXPCK

EXDT

CN5431

EXPST

E

EXPOE

CROUT

CBOUT

CYOUT

CRIN

CBIN

CN4314

CYIN

CY

CB

CR

D53A

DINH

DB

DR

DY

VMUTE

VMUTE

DSW1

N

CN1004

AH

OUT

COMPONENT

Y

Cb

13

+6dB

BIAS

Cr

11

+6dB

BIAS

JA2401(2/2)

B

IC2405

POWER

AMP

3

C

Y1

CB1

14 1

15

JA2403

9

+6dB

BIAS

5

CR1

4

OUT

MULTI ROOM

CN2409

NJM2581M

POWER SAVE

7

C53B

9

11

10

MRV

15

BUFFER
OUTPUT

BUFFER
OUTPUT

BUFFER
OUTPUT

SERIALIN

SELECT

IC2404

TC74LVX4053FT

D

CINH

6

13

CINH

IC2401

E

14

151112

DY

CY1

CY2

CY3

HDMI(VC)

THROUGH

Through/Convert

13

12

NC

3

SELECT

TC74LVX4052FT

C'NENT/D-TERM

124

NCNCNC

HDMI(VC)

THROUGH

12356

CSW2

CSW1

9

10

CSW1

CSW2

5

NC

HDMI(VC)

THROUGH

CINH

CINH

CB1

6

14

CINH CINH

13

151112

CB2

CB3

QS

94567

IC2402

TC74LVX4052FT

C'NENT/D-TERM

DB

IC2407

Q2

Q1

CSW1

CSW2

SELECT

524

CR1

PORT

EXPANDER

BU4094BCF

Q4

Q3

CINH

CSW1

3

10

CSW1

CR2

CR3

DR

Q5

14

C53B

CSW2

9

CSW2

1

OECOE

15

CN2401

CSW1:CSW2:CINH

·USING EXPANDER PORT

<TC74LVX4052FT x2 (SW IC2401, IC2402)>

EXPST:EXPCK:EXPOE

INPUT DATA NAME:EXDT

·CONTROL U-COM PORT

<BU4094BCF(EXPANDER IC2407)>

COMPONENT & VOL ASSY COMPOSITION IC DATA

VMUTE

C53B:CINH

·CONTROL U-COM PORT

·USING EXPANDER PORT

<NJM2581M x1 (V-AMP IC2405)>

<TC74LVX4053FT x1 (SW IC2404)>

Q1:CSW1/Q2:CSW2/Q3:CINH/Q4:XMSB

Q5:C53B/Q6:DSW1/Q7:D53A/Q8:DINH

OUTPUT DATA NAME:DT2

·EXPANDER PORT NAME

K

Y

Cb

JA2401(1/2)

F

COMPONENT IN1

Cr

JA2402(1/2)

Y

Cr

Cb

COMPONENT IN2

Y

Cb

JA2402(2/2)

COMPONENT IN3

Cr

24

VSX-74TXVi

1234

5678

3.1.5 DSP BLOCK DIAGRAM

ANALOG

OUT

VSX-74TXVi ONLY

DA

(BB)

DSD1791DBR

IC551(FL,FR) , IC651(C,SW)

IC751(SL,SR) , IC851(SBL,SBR)

IC951(STL,STR)...

(1/2)

CN302

(1/2)

CN352

SPI+RST

A

B

RST

AD

(BB)

IC482

PCM1803DB

IC201

DSP(PPP)

MOTOROLA

DSPC56371AF180-K

CN352(2/2)

M

SPI+RST

IC101

SHARC EX

ADSP-21266

DSP(DECODER)

CN301(1/2)

DAUX

DIT&DIR

CN351(2/2)

CN351(1/2)

3LINE DATA

IC301

AK4114VQ

CN302(2/2)

SPI+RST

CN301(2/2)

SPI+RST

4Mbit

IC202

(512kbyte)

FLASH ROM

u-COM

(100pin)

PEG117A

19bit ADDRESS BUS

IC201

16bit DATA BUS

DSP CONTROL

HDMI

1394

MAIN u-COM

RST SPI

4LINE DATA

& CLOCK

IC101

PEG116A

Selecting digital data.

Converts digital signals into analog signals.

DSP Control / DIR Control / A/D,D/A Control

Denotes DSP processing (P Company's original surround processing),

which are executed at the latter part of a decoder area.

set

D/A Converter

C

D

E

CN6203

A L

ANALOG IN

SPDIF

RX**

(2ch)

DIGITAL

VSX-74TXVi

56

1.Description of Device ICs

IC No IC Name Description of function

IC 482 A/D Converter Converts signals from an analog source into digital signals.

IC 301 Digital Audio Interface Transceiver & Receiver

IC 101 DSP Decoder for compressed sound such as AC-3 and DTS.

IC 201 DSP P Company's original processor such as SFC.

7

851,951

2.Description of Abbreviated Names

IC 201 DSP Microcomputer

IC 202 FLASH ROM DSP Microcomputer programs are stored in the flash rom.

IC 551,651,751,

Signal name Formal signal name Description of signals

8

SPI SONY/Philips Digital Interface Consumer format used for exchanging digital audio signals.

RST RESET Reset signal.

PPP Post Processing Phase

F

25

1234

3.1.6 HDMI & DVC BLOCK DIAGRAM

A

N

CN4311

CN1001

12

SDA[3:0]

8-11

12-15

6

SPDIF

11

13

15

MCLK

SCK

WS

18

17

16

B

CN301

10.12

TX0[+,-]

TXC[+,-]

26.27

(19P)

HDMI

CONNECTOR

7.9

4.6

TX1[+,-]

29.30

32.33

1.3

TX2[+,-]

35.36

IC201

9

SN74LVC541APW

4

5-8

3

2

6

12

11

7-10

IC301

SIL9030CTU

HDMI TRANSMITTER

5

2

1

66

IC453,452

SN74LVC541APW

IC701

ADV7172KSTZ

VIDEO ENCODER

3533292825

CVBS OUT

SY OUT

SC OUT

Y OUT

24

Cb OUT

Cr OUT

C

VDATA[15:8]

VDATA[23:16]

IC454

DCK

36

SN74LVC1G125DCK

IC401

D

IC501

PEG118A

HDMI CPU

MCLK

88

SCK

86

WS

SDA[3:0]

85

SPDIF

81-84

VSYNC

HSYNC

VDATA[15:8]

VDATA[23:16]

DCK

3

121

2

78

VDATA[7:0]

CVBS/S Y/Y

VIDEO DECODER

ADV7400AKSTZ-80

76 48

74

72

PR

c/PB

16

15

14

IC101

SIL9031CTU

E

IC502

AYW7045

4M Flash ROM

39.40

43.44

47.48

51.52

HDMI RECEIVER

58.59

62.63

66.67

70.71

IC601

3

FMS6403MTC

VIDEO FILTER

5

4

6

8

IC602

MM1503XN

AG

(7P)

CN501

RS232C

10.12

7.9

CN101

R0X2[+,-]

4.6

(19P)

1.3

R1XC[+,-]

10.12

HDMI

CONNECTOR

R1X0[+,-]

R1X1[+,-]

7.9

4.6

(19P)

CN102

R1X2[+,-]

1.3

CVBS IN

24

CN1002

SY IN

20

SC IN

181210

Y IN

Cb IN

Cr IN

N

8

CN4310

221614

642

R0XC[+,-]

R0X0[+,-]

R0X1[+,-]

F

26

VSX-74TXVi

1234

5678

3.1.7 MICROCOMPUTER BLOCK DIAGRAM

A

4M

IC 105

FLASH ROM

M

u-COM

RENESUS M16C

i.LINK CONTROL

IC 101

PD5787A

62P/100pin

AF

DSP

IC 101,201

M

IC 201

62P/100pin

DSP u-COM

RENESUS M16C

L

IC 501

HDMI/DVC

AG

IC 501

62P/100pin

HDMI u-COM

RENESUS M16C

SW IC

AG

IC 208

L

4M

IC 502

FLASH ROM

AG

4Mbit

IC 102

(512kbyte)

FLASH ROM

L

VIDEO SW IC

IC 2001 - IC 2004

IC 2008,IC 2009

PORT EXPANDER

I I

B

C

iPod

AE

XMRadio

L

IC 2637

IC 2638

6CH E-VOL

K

IC 281

IC

IC 6201

IC 6301

FUNCTION

A

B

SW IC

IC 107,210

L

IC 181

RDS IC

European

16bit DATA BUS

MAIN u-COM

model only

19bit ADDRESS BUS

IC 101

62P/128pin

RENESUS M16C

L

TUNER

MODULE

AXX 7172

I

NEC

IC 3201

100pin

DISPLAY u-COM

OSD IC

AC

IC 2007

FL

AC

IC NO MAIN FUNCTION

IC NAME

D

SYSTEM CONTROL(AMP,ICs,XM,iPod,RS232C,OSD,TUNER,RDS)

HDMI TX,RX CONTROL / DVC CONTROL

iLINK(1394) CONTROL

IC101

IC3201 FL,LED,KEY CONTROL

IC501

E

MAIN u-COM

DISPLAY u-COM

HDMI u-COM

DSP u-COM IC201 DSP CONTROL / DIR CONTROL / A/D,D/A CONTROL

iLINK CONTROL u-COM IC101

56

VSX-74TXVi

F

27

7

8

1234

3.2 OVERALL WIRING CONNECTION DIAGRAM

D15A06-150-2651

A

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.

AB

VOLUME ASSY
(AWX8641)

J42

3571

*

23/265

B

FRONT-IN ASSY
(AWX8638)

CN3451

C

J41

15/285

ADD7507-

C

CN4301

CN101

11

11

CN102

CN4302

CN991

20

CN4303

D

CN992

20

CN4304

CN104

16

CN4305

DIGITAL MOTHER ASSY

8

8

CN306

CN4323

23

23

CN304

E

CN4306

4

CN4307

4

CN302

CN301

CN201

CN103

CN202

CN106

3

Y18

(FOR FLASH u-COM)

23

23

E

L 1/8- L 8/8

CN5432

CN105

ADD7518-

10/65

J53

CN305

*

*1.00mm

ADD7517-

22/55

CN303

*

J52

*1.00mm

(VSX-74TXVi:AWP7037)

(VSX-72TXV:AWP7041)

L

CN352

M 1/2, M 2/2

CN351

26 26

DSP ASSY

(AWX8599)

M

DC/DC ASSY
(AWX8650)

3

CN4271

CN4272

4

J2

4/150

6102

LOCAL SUPPLY ASSY
(AWX8671)

S

Y16 Y17 4301

ADX7494-

WHT

BLK

J4

4/200

ADX7493-

ADX7492-

4302

BRIDGE1 ASSY
(AWX8667)

CN402

*

1394 ASSY

(VSX-74TXVi:AWK7882)

*

AF

CN401

CN101

CN1002

CN4310

24

HDMI&DVC ASSY

CN4311

(AWQ7024)

CN1001

24

AG

CN101

T

D20PDY0415E

6

CN6103

CN610611CN6105

11

J4308

D20PDD0420E

CN5431

14

CN4325

11

CN4312

CN4313

20

7

CN4324

13

CN4314

AG 1/2, AG 2/2 AF 1/2, AF 2/2

7

CN4315

6/150

J9

*1.5mm

ADD7508-

6/200

J3

D20PDY0620E

(B12B-PH-K-S)

12

CN6101

5

J6104

8

PF11PG-R05

PF08PG-R05

8

INTERFACE ASSY

J4309

(AWX8651)

N

CN2601

23

23

CN2504

1411

CN2501

ADD7510-

19/130

K 1/4- K 4/4

CN2506

CN2602

CN2503

7

13

7

CN2401

CN2603

CN2505

COMPONENT & VOL ASSY

(VSX-74TXVi:AWQ7028)

(VSX-72TXV:AWQ7030)

CN2502

K

CN2409

ADD7513-

CN2702

J47
17/90

CN2403

CN2402

3204

*

23

CN3201

PF05PG-R20

J44

16

CN4316

AC

3202

J43

19/275

ADD7509-

CN5441

F

CN2202

17

17

S-VIDEO ASSY
(AWX8622)

DISPLAY ASSY
(VSX-74TXVi:AWX8635)
(VSX-72TXV:AWX8636)

19

CN5703

CN5704

P

5

CN5702

11

11

CN5302

R

POWER AMP-R ASSY
(AWX8656)

WHT

Y4(RS)

ORG

Y2(R)

BRW

Y4(SBR)

CN5301

13

13

CN5602

19

CN5603

ADD7511-

J45

19/55

ADD7512-

J46

17/55

BRIDGE2 ASSY

(AWX8668)

11

11

CN2201

J

CN5442

CN5443

15

CN4317

13

13

15

POWER PROTECT ASSY
(AWX8658)

POWER AMP-L ASSY
(AWX8654)

Y6

CN5303

7

7

CN5606

O

CN2002

COMPOSITE V ASSY

(AWX8620)

CN2001

I

POWER AMP

Y1(C)

ADD7514-

26/190

19

CN5452

BRIDGE3 ASSY
(AWX8669)

17

CN5453

CN5451

23

23

CN6302

6

6

CN4318

CN6301

IN ASSY

(AWX8662)

YEL

J48

H

V-AUDIO ASSY

(AWX8637)

CN5701

11

11

CN5002

Q

Y5

CN5003 CN5001

7

7

CN5605

CN4319

23

CN5454

17

CN5455

13

CN5601

13

13

13

23

17

CN6202

B

17

CN5705

5604

CN6203

CN6204

AUDIO &MULTI CH IN ASSY

(AWX8674)

A

F

28

VSX-74TXVi

11/115

J54

ADD7519-

11

TUNER

MODULE

CN1

AXX7172-

1234

5678

Y3(LS)

Y1(L)

Y3(SBL)

ADD7516-

17/130

J51

GRY

GRN

PPL

CN2801

AE

D15A08-150-2651

8/150

3203

*

D20PDY0410E

J10

*1.5mm

HEAD PHONE ASSY
(AWX8639)

D

CN3551

4

J5

4/100

4401

CN4403

TRANS SIDE ASSY

(AWX8652)

G

CN4402

12

PF13PG-R12

ADX7460-Y2

ADX7459-Y1

ADX7404-

Y5

ADX7498-

Y6

ADX7459-Y4

ADX7460-Y3

AD

INPUT SELECT ASSY

3561

(AWX8640)

*

J3001

12

Y

PF12PG-R40

2019 232221 24 25 26 27 28

MAIN TRANS

*3

T1501

8910 1211

TRANS2-1 ASSY

5

(AWX8646)

4201

CN4202

J13

5/250

J8

6/200

D20PDY0525E

4261

V

VH TR ASSY
(AWX8649)

J4009

12

SP/PS ASSY
(VSX-74TXVi:AWX8642)

X

(VSX-72TXV:AWX8644)

CN4004

2

CN4003

2

CN4006

2

CN4005

2

*5

KU

TRANS2-2 ASSY
(AWX8626)

*5

FU4

FU5

Y8 Y9 Y10

ADX7488-

BLK

D20PDD0620E

DIODE ASSY
(AWX8648)

ADX7451-

ADX7452

BLK

Y13

ADX7461

CN4102

3

CN4101

4

FU6

U

BWN

W

RED

Y11

REK1087

(10A/125V)

FU7

FU8

Y14 Y15

GRY

ADX7489-

BLU

ADX7453

CN4008

CN4007

FU1

TRANS1
ASSY

GRY

ADX7490-

Y12

9

5

Z

31

BWN

ADX7491-

PRIMARY ASSY

AA

(AWX8628)

*5

9

CN3062

5

CN3063

FU2,3

-

FU4

REK1067

(5A/125V)

KU

MAIN*3

TRANS

ATS7402-

FU5,6

REK1108

(1.25A/125V)

*6

AC CORD

1905:VDG1075

FU7,8

REK1112

(2.5A/125V)

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.

BOARD IN

PF**PG-***
CABLE WIRE

1.25mm FFC
(*;1.00mm FFC)

2.0mm FLAT CABLE
(*;1.5mm FLAT CABLE)

1.25mm FFC CONNECTOR(L)
(*;1.00mm FFC CONNECTOR)

1.25mm FFC CONNECTOR(I)
(*;1.00mm FFC CONNECTOR)

2.0mm CABLE HOLDER
(*;1.5mm CABLE HOLDER)

2.0mm WIRE TRAP

B*B-PH-K-S
PH CONNECTOR

FU1

CN3061

ANOTHER TYPE CODE SOCKET

ANOTHER TYPE CODE CONNECTOR

XKP%%-A

1.25mm BOARD to BOARD

XKP%%-A

1.25mm BOARD to BOARD

KP250NA

2.5mm BOARD to BOARD

A

B

C

D

E

23

CN4320

PREOUT & CONTROL ASSY

(AWX8625)

23

CN2802

56

VSX-74TXVi

*6

AC CORD

7

2.5mm BOARD to BOARD

ANOTHER TYPE BtoB SOCKET

ANOTHER TYPE BtoB CONNECTOR

'05.2.25 update :TP

F

29

8

1234

3.3 AUDIO & MULTI CH IN ASSY

(1/2)

470p

C6291

C6283

GNDCH

(CHASSIS)

(CD)

GNDCH

(CHASSIS)

(1/2)

(CDR)

(1/2)

GNDCH

CN6209

GNDCH

(CHASSIS)

(PHONO)

*3

3

1

2

0.1

7

6

4

5

(REC)

3

1

2

C6284

7

GNDCH

6

4

5

(F)

3

1

2
C6285

0.01

7

(C)

6

4

(SW)

5

(1/2)

3

(S)

1

2

7

6

(SB)

4

5

(2/2)

3
2

1

R6249

C6297

STBY

0.01

STBY

C6279

R6250

GNDA

C6249

C6250

STBY

C6280

C6286

0.1

C6292

470p

C6298 C6299

STBYSTBY

0.01

C6201

C6202

C6203

STBY

C6204

STBY

C6205

C6206

C6207

C6208

C6209

C6210

STBY

C6211

C6212

C6213

C6214

C6215

C6216

STBY

STBY

C6281

CHASSIS

R6251

R6252

STBYSTBY

STBYSTBY

STBYSTBY

STBYSTBY

STBYSTBY

STBYSTBY

QTL1013

A

ONLYVSX-74TXVi

CN6205

L

PHONO

R

AKB7172

*3

CN6205

B

C

D

E

CN6205

CN6207

CDR

AKB7172

AKB7172

CN6208

AKB7172

L

CD

R

CN6207

AKB7172

L

CDR OUT

R

(2/2)

AKB7172

L

CDR IN

R

CN6208

AKB7172

L

R

C

(2/2)

AKB7172

SW

LS

7.1ch INPUT

RS

SBL

SBR

CN6209

SR OUT

JA6201

RKN1004

F

A

R6253

STBYSTBY

R6205

R6206

R6207

R6208

R6209

R6210

R6211

R6212

R6213

R6214

R6215

R6216

L6201

0.01

330

100k

100k

R6254

330

47k 47k

C6282

L6205L6203

STBYSTBY

L6206L6204

STBYSTBY

R6217

330

R6201

47k

47k

R6218

R6202

330

R6221

2.2k

100k

100k

R6222

2.2k

R6223

47k 47k

R6224

R6225

330

47k

47k

R6226

R6227

330

R6228

330

R6229

47k 47k

R6230

330

R6231

47k 47k

R6232

R6255

R6256

330

330

330

330

330

330

STBY

C6251
10/50

100k 100k

C6252
10/50

AT

C6253

C6254

C6238

C6243

C6244

GNDUS

STBY

STBY

AT

C6233

C6217

C6218

C6234

C6237
10/50

C6221

C6222

C6239

C6223

C6224

C6240

C6241

C6225

C6226

C6242

C6227

C6228

C6245

C6229

C6230

C6246

C6247

C6231

C6232

C6248

STBYSTBY

STBYSTBY

10/50

STBYSTBY

STBYSTBY

STBYSTBY

STBYSTBY

STBYSTBY

R6257

C6255

C6256

R6258

R6234 R6233

C6235

STBY

C6219

STBY

C6220

C6236

R6238 R6237

R6240 R6239

R6242 R6241

R6244 R6243

R6246 R6245

R6247

R6248

R6288

L6209
STBY

AT

AT

stby

stby

stby

stby

stby

stby

stby

stby

stby

stby

stby

stby

30

C6257

3

STBYSTBY

2

R6259

560

390k

C6259

8200p

YB

47/16

C6260

47/16

8200p

YB

R6260 R6262

560

390k

6

5

C6258

(CD)

STBY

STBY

stby

stby

(REC)

150K 150K

(CDR)

(F)

STBY STBY STBY STBY

(C)

(SW)

STBY STBY

(S)

STBY STBY

(SB)

STBY STBY

0

VSX-74TXVi

IC6203

BA4560RF

+

-

R6261

-

+

STBY

R6235

STBY

R6236

4

1

8

30k

30k

8

7

4

IC6203

BA4560RF

R6283

R6282

(1/2)

R6263

470

C6261

1200p

C6293

1200p YB

C6294

1200pYBYB

C6262

1200p

R6264

470

1M1M

(2/2)

10/50

AT

C6263

YB

C6264

10/50 AT

R6265

R6266

(FVL)

220k

220k

V+7A

C6265

C6266

(CDR)

(PHONO)

AT

C6275

47/16

AT

C6276

47/16

(FVL)

(F)

(TL)

STBY

STBY

(MIC)

(CD)

(PHONO)

CN6202

XKP3077

V-7A

INPUT SELECTOR

IC6201

(IP)

(IP)

BD3841FS/S

1
231
3
4
5
6
7
8

9
10
11
12
13
14
15
16 17

V+7A

V-7A

13 11

9107

12 6

GNDU

GNDU

V-7A

SROUT

V+7A

N

8

iP R

CN4319

GNDA

GND
CLK

DATA

VEE

GNDA

VCC

iP L

GNDA

32

30
29
28
27
26
25
24
23
22
21
20
19
18

(IP)

5

3

4

GNDA

VLCK

2

VLDT1

1

GNDU

GNDU

1234

5678

(PHONO)

(MR)

(MR)

(F)

(MR)

(F)

: AUDIO SIGNAL ROUTE(F)

(C)

: AUDIO SIGNAL ROUTE(C)

(S)

: AUDIO SIGNAL ROUTE(S)

(SB)

: AUDIO SIGNAL ROUTE(SB)

(SW)

: AUDIO SIGNAL ROUTE(SW)

: AUDIO SIGNAL ROUTE (PHONO)

(IP)

: AUDIO SIGNAL ROUTE(IP)

R6271

47k

R6272

C6267
100p

47k

47k047k

R6273

R6274

C6269

C6270

R6269

0

R6270

C6268
100p

0.01

0.01

R6267

R6268

GNDU

C6295

C6296

100

100

47/16

47/16

(MR)

(MR)

V-7A
V+7A

(TL)

(CD)

: AUDIO SIGNAL ROUTE (CD)

(TL)

: AUDIO SIGNAL ROUTE (TL)

(MR)

: AUDIO SIGNAL ROUTE (MR)

(REC)

: AUDIO SIGNAL ROUTE (REC)

(CDR)

: AUDIO SIGNAL ROUTE (CDR)

(MIC)

: AUDIO SIGNAL ROUTE (CDR)

(FVL)

: AUDIO SIGNAL ROUTE (FVL)

R6284

47K

AUDIO&MULTI CH IN ASSY

A

(AWX8674)

V+7A

CN6203

XKP3082-

(TL)

1

TUNER L

2

GNDA

3

TUNER R

5

7

9

11

13

15

17

19

21

23

4

GNDA
MRtoVOL L

6

GNDA
MRtoVOL R

8

GNDA
MR ASEL L

10

GNDA
MR ASEL R

12

GNDA
ASEL L

14

GNDA
ASEL R

16

GNDA
MR VASEL R

18

GNDA
MR VASEL L

20

GNDA
GNDA

22

V+7A
V-7A

(MR)

L6208

VTL1083

R6287

R6285

47K

(MR)

(MR)

(F)

STBY

V-7A

GNDA

CN5454

H

A

B

C

(SW)

(F)

(S)

(SB)

(MR)

(MIC)
(FVL)

6201

VEF1040

L6207

VTL1083

R6286

STBY

(SW)

(C)

(S)

(SB)

(MIC)

(FVL)

CN6204

XKP3079-

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

SW
GNDA
C
GNDA
RS
GNDA
LS
GNDA
SBR
GNDA
SBL
GNDA
MIC
GNDA
FVL
GNDA
FVR

D

CN5455

H

E

F

56

VSX-74TXVi

A

31

7

8

1234

3.4 V-AUDIO ASSY

A

B

JA6301

AKB7174

C

CN6307

AKB7172

CN6307

D

AKB7172

E

AKB7172

F

V-AUDIO ASSY

B

(AWX8637)

L

JA6301

MR OUT

AKB7174

(1/3)

R

NoAssign2

JA6301

(2/3)

L

DVD

R

(CHASSIS)

NoAssign1

JA6301

(3/3)

AKB7172

AKB7172

CN6308

(1/2)

DVR1 OUT

DVR1

DVR1 IN

CN6308

CN6309

DVR2 OUT

AKB7172

DVR2

CN6309

(1/2)

SAT

GNDCH

(CHASSIS)

(2/2)

VIDEO1

AKB7172

AKB7172

(2/2)

(1/2)

AKB7172

DVR2 IN

(2/2)

GNDCH

L

TV

R

L

R

L

R

L

R

GNDCH

(CHASSIS)

L

R

L

R

GNDCH

(CHASSIS)

L

R

GNDCH

AKB7174

(DVD)

(TV)

(SAT)

(V1)

(DVR1)

(DVR2)

C6368

0.01

3

1

2

7

6

4

5

(REC)

3

1

2

0.1

7
C6381

6

4

5

(REC)

3

1

2

7

6

4

(at C6382)

5

C6369

R6391

R6392

(MR)

GNDA

0.01

C6351

0

(at C6352)

0

R6351

1K

STBYSTBYSTBYSTBY

C6353

C6354

R6352

1K

C6301

C6302

C6349

0.1
C6379
470p

STBYSTBY

C6307

STBYSTBY

C6313 C6308

C6314

C6350

0.1
C6380

470p

STBYSTBY

C6319

C6320

L6301

STBY

STBYSTBY

C6325

C6326

STBY 2.2k

L6302

470p

C6331

R6331

STBYSTBY

C6332

R6332

L6303

STBY

C6337

C6338

STBY

L6304

STBYSTBY

C6343

R6343

C6344

R6344

STBYSTBY

E

C

C

E

R6303

330

R6301

47k 47k

R6304

R6302

330

R6309

330

47k

R6307

R6310

R6308

330

R6315

330

47k 47k 47k

R6314 R6313

R6316

330

R6321

R6319

47k

47k

R6320

R6322

330

R6327

2.2k

R6325

100k 100k

R6328

R6326

R6333

330

47k

47k

R6334

330

R6339

2.2k

100k

R6337

100k

R6340

R6338

2.2k

R6345

330

47k 47k

R6346

330

Q6301

Q6302

330

IMX25

B

B

IMX25

C6329

C6330

C6333

C6334

C6341

C6342

C6355

C6356

C6305

C6303

C6304

C6306

C6311

C6309

C6310

C6312

C6317

C6315

C6316

C6318

C6323

C6321

C6322

C6324

C6327

C6328

C6335

STBYSTBY

C6336

C6339

C6340

C6347

C6345

C6346

C6348

STBYSTBY

STBYSTBY

STBYSTBY

STBYSTBY

10/50

STBYSTBY

10/50

10/50

STBYSTBY

10/50

STBYSTBY

R6353

10k

STBY

R6354

STBY

10k

stby

R6305

R6306

stby

stby

R6311

R6312

stby

stby

R6317

R6318

stby

stby

R6323

R6324

stby

R6330 R6329

stby

R6335

R6336

stby

R6341

R6342

stby

R6347

R6348

stby

R6355

(DVD)

STBY STBY

STBY

STBY

(SAT)

STBY

STBY

STBY

STBY

150K 150K

(DVR1)

STBY STBY

150k

150k

(DVR2)

STBY STBY

1K

R6356

1K

(TV)

(V1)

(REC)

(REC)

(MR)

(V1)

(SAT)

(TV)

(DVD)

INPUT SELECTOR

(DVR2)

(DVR1)

1
231
3
4
5
6
7
8

9
10
11
12
13
14
15
16 17

IC6301

BD3841FS/S

GNDU

CLK

DATA

VEE

GNDA

VCC

32

30
29
28
27
26
25
24
23
22
21
20
19
18

32

B

VSX-74TXVi

1234

5678

(REC)

(REC)

(F)

R6381

47K

R6382

47K

(MR)

(MR)

(F)

R6363

R6364

W6322

C6371

10/50

150K 150K

C6372

10/50

100K

R6365

100K

R6366

C6373

uPC4570G2
uPC4570G2

C6374

STBY

STBY

R6367

+

3

-

2

IC6302

6

-

5

+

0

4

L

8

IC6302

8

R

4

(1/2)
(2/2)

1

7

100p

C6359

C6361

C6362

STBY

V+7A

C6375

C6376

V-7A

R6361

100
R6362

100

100p

C6360

R6375 R6373

0.01

R6374 R6372

0.01

R6369

0

0.01 0.01
R6370

GNDU

00

00

R6371

0

W6325

C6377
47/25

STBY

C6378
47/25

STBY

0

W6321

C6363

C6364

47/16 47/16

(F)

NOTE

1.RESISTORS

2.CAPACITORS

L6305

stby

R6383

(MR)

(MR)

(F)

Unit: k-k , M-M or unless otherwise noted.
Rated power: 1/16W unless otherwise noted.

+

Tolerance: (J) 5% unless otherwise noted.

-

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

V+7A

1

MROUT R

2

GNDA

3

MROUT L

4

0

(MR)

(F)

V-7A

0

R6384

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

XKP3082

CN6302

STBY

L6306

GNDA
MR ASEL L
GNDA
MR ASEL R
GNDA
ASEL L
GNDA
ASEL R
GNDA
MR VASEL R
GNDA
MR VASEL L
GNDA
FR
GNDA
FL
GNDA
V+7A
GNDA
V-7A

CN5453

H

A

B

C

D

W6320

R6368

0

2

GNDA

N

31

4

GNDA

VLDT2

CN4318

VLCK

(MR)

5

GNDU

KP200TA6L

6

CN6301

MRMUTE

GNDU

VSX-74TXVi

56

(F)

: AUDIO SIGNAL ROUTE (F)

(MR)

: AUDIO SIGNAL ROUTE (MR)

(REC)

: AUDIO SIGNAL ROUTE (REC)

(DVD)

: AUDIO SIGNAL ROUTE (DVD)

(TV)

: AUDIO SIGNAL ROUTE (TV)

(SAT)

: AUDIO SIGNAL ROUTE (SAT)

(V1)

: AUDIO SIGNAL ROUTE (V1)

(DVR1)

: AUDIO SIGNAL ROUTE (DVR1)

(DVR2)

: AUDIO SIGNAL ROUTE (DVR2)

E

F

B

33

7

8

1234

3.5 FRONT-IN and HEADPHONE ASSYS

A

3551

AKN7029

HEADPHONE

L3551

R3552

4
3
2
1

VTL1083

STBY

R3551

1k

C3551 C3552

3900p 3900p

CN3551

52147-0410

4

3

2

(F)

1

HPSW

HPR

HPG

HPL

HEADPHONE ASSY

D

(AWX8639)

4401

G

B

C3553

C3554

C3555

470p

0.01

0.1

JA3451

RKN1004

2
3
1

MIC IN

C

FRONT OPT

JA3452

AKX7019

VCC

15 1314

GND

VOUT

(1/5)

KN3451

VNF1084

R3462

1k

0.01

C3465

GNDCH

(CHASSIS)

KN3551

(MIC)

0.1

C3464

100

VNF1084

GNDCH

(CHASSIS)

R3460

STBY

C3466

1

C3463

6.8k

R3451

R3464

C3452
10/50

470p

C3451

STBY

(D)

STBY

C3456

R3453
100

100k

R3452

100p

C3453

C3457

100k

R3454

10/50

IC3451

D3454

DAN217

R3463

D3453

UDZS5R1(B)

V+5D

(1/2) (2/2)

BA4560RF

4

+

3

-

8

2

R3455

C3454

4.3k

R3456

MIC AMP

1k

1

33k

22p

IC3451

BA4560RF

R3480

100

R3466

R3465

+

5

-

64

4.3k

R3457

R3468

0

0

0

8

R3458

7

33k

C3455

22p

L3453
QTL1013

C

L3456

C3467

C3471

0.1

Y

R3497

C3481

STBY

R3496

0

220p

220p

C3482

0

0.1

75

R3471

R3475

R3483

R3481

R3482

STBY
C3474

75

R3484
220

R3495

100k

100k

75

R3473

R3476

0

STBY

C3474

220

C3483

10/16

JQ

STBY

L3455

VTL1083

C3484 R3488

10/16 JQ

R3472

R3474

R3485

R3486

0

STBY

0

C3472

F(C'Site)

R3487

220

100k

C3485

C3486

100k

220

FS(C)

FS(Y)

C3479

(FVL)(FVL)

B2

CH

Q3451

100p

HN1C01FU(YGR)

100p

CH

STBY

C2

E2

(FVL)

100

R3489

R3491

R3498

C3477

15K

0

R3499

C3491

33/25

C3489

B

0

0.01

R3492

C

E

V+12A

R3490

STBY

15K

(FVR)

100

Q3451

47

R3494

R3493

HN1C01FU(YGR)

33/25
C3492

C3490

0.01

47

D

10

9

(3/5)

6

(4/5)

4

2

(5/5)

C3496

0.01

(2/5)

8

12

11
7

L3457

STBY

JA3452

AKX7019

S-VIDEO

AXK7019

VIDEO2 INPUT (FRONT)

JA3452

E

F

AKX7019

VIDEO

5

JA3452

AKX7019

L

3

1

R

JA3452

AKX7019

C D

34

VSX-74TXVi

1234

STBY

R3469

5678

FRONT-IN ASSY

C

(AWX8638)

R3459 C3470

100 10/50

0.01
10/50

0

C3461

C3459

R3467

0.01

C3460

C3462

10/50

V-12A

VTL1083

L3451

(D)

F(C'Site)

(FVL)

FS(C)

FS(Y)

L3452

R3470

R3461

D3451

100k

D3452

VTL1083

STBY

UDZS5R1(B)

UDZS5R1(B)

(MIC)

CN3451

52045-1545

15

13

11

9

7

5

3

1

14

12

10

8

6

4

2

MICDET
MICOUT

V-12A
GNDA

V+12A
V+5D
GNDD
FOPT
FV-C
FV-Y
FV
GAV
FV-L
GNDA
FV-R

CN4301

N

mark found on some component parts indicates

The
the importance of the safety factor of the part.
Therefore,when replacing,be sure to use parts
of identical designation.

NOTE

1.RESISTORS

Unit: k-k , M-M or unless otherwise noted.

2.CAPACITORS

FS(Y)
FS(C)

F(C'Site)

(FVL)

(F)

(MIC)

(D)

Rated power: 1/16W unless otherwise noted.
Tolerance: (J) 5% unless otherwise noted.

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

JQ:CEJQ

: VIDEO SIGNAL ROUTE FS(Y)
: VIDEO SIGNAL ROUTE FS(C)
: VIDEO SIGNAL ROUTE F(C'Site)
: VIDEO SIGNAL ROUTE (VIDEO 2)
: AUDIO SIGNAL ROUTE (F)
: AUDIO SIGNAL ROUTE (MIC)

: AUDIO SIGNAL ROUTE (SPDIF)

+

-

A

B

C

D

470p

C3476

C3478

0.1

STBY

C3475

GNDCH

(CHASSIS)

0.1

C3494

KN3452

VNF1084

C3495

470p

STBY

C3493

VSX-74TXVi

56

E

F

C

35

7

8

1234

3.6 BRIDGE1, BRIDGE2, TRANS SIDE and BRIDGE3 ASSYS

A

BRIDGE 1 ASSY

E

(AWX8667)

XKP3071-

CN5431

23

21

19

17

15

13

11

9

7

5

3

1

22

GCONT2
AMUTE

20

MUTE MR/SB
EXPST

18

EXPOE
EXP/OSDCLK

16

EXPDT
OSDDT

14

OSDRST
OSDCS

12

12VDET
MRIN2

10

MRIN1
T CE

8

T DI
T CLK

6

T DO
FMDET

4

GNDU
GNDU

2

V iP
V+5.6U

CN2504

2/4

K

T CE

T DI

T DO

V iP

CN5432

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

XKP3071-

GCONT1 GCONT1
GCONT2

AMUTE

MUTE MR/SB

EXPST

B

C

EXPOE

EXP/OSDCLK

EXPDT
OSDDT

OSDRST

CN105

OSDCS

12VDET

1/8

L

FMDET

V+5.6U

MRIN2
MRIN1

T CLK

GNDU
GNDU

BRIDGE 2 ASSY

F

(AWX8668)

52045-1745

CN5441

GNDU

16

OSDCS

OSDRST

14

OSDDT

EXPDT

EXP/OSD CLK

CN2409

3/4

K

EXPOE

EXPST

FVC

GNDV

FVY

GNDV

GNDV

MRV
MRGND
MRGND

12

10

8

6

FV

4

2

17

15

13

11

FS(C)

9

7

5

3

1

FS(Y)

F(C'Site)

XKP3065-

11

10

9

8

7

6

5

4

3

2

1

MR(C'Site)

CN5442

GNDU
GNDU
EXP/OSD DT4
EXP/OSD DT2
EXP/OSD CLK
EXPOE

EXPST
FVY
GNDFV
FVC
GNDFV

CN2202

J

D

E

F

(SB)

(SW)

(TL)

(MIC)
(FVL)

(MR)

MR(C'Site)

F(C'Site)

FS(C)

FS(Y)

(F)

: AUDIO SIGNAL ROUTE(F)

(C)

: AUDIO SIGNAL ROUTE(C)

(S)

: AUDIO SIGNAL ROUTE(S)
: AUDIO SIGNAL ROUTE(SB)
: AUDIO SIGNAL ROUTE(SW)
: AUDIO SIGNAL ROUTE(TUNER)
: AUDIO SIGNAL ROUTE(MIC)
: AUDIO SIGNAL ROUTE(VIDEO2)
: AUDIO SIGNAL ROUTE(MR)
: VIDEO SIGNAL ROUTE MR(C'Site)
: VIDEO SIGNAL ROUTE F(C'Site)
: VIDEO SIGNAL ROUTE FS(C)
: VIDEO SIGNAL ROUTE FS(Y)

TRANS SIDE ASSY

G

(AWX8652)

CN4403

52045-1745

HPSW

WUP

RYAC

V+5.6ST

GNDST
GNDST

RYCS
RYHP

CN5705

+12V

P

LOCK DET

-FAN

-FAN
+FAN
+FAN

RYB

RYA

-12V

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

L4401
R4401

L4402
R4402

L4403
R4403

L4404
R4404

L4405
R4405

L4406
R4406

L4407
R4407

L4408
R4408

L4409
R4409

L4410
R4410

L4411
R4411

L4412
R4412

L4413
R4413

L:VTL1083x13
R:standby

4401

51048-0400

4

3

2

(F)

1

S13B-PH-K-S

CN4402

1

2

3

4

5

6

7

8

9

10

11

12

13

HPSW

HPR

HPG

HPL

HPL

HPG

HPR

V-12V

V+12V

RYA

RYHP

RYCS

RYB

GNDST

V+5.6ST

RYAC

WUP

CN3551

D

J4009

X

E F G

36

VSX-74TXVi

1234

5678

A

BRIDGE 3 ASSY

H

(AWX8669)

F(C'Site)

XKP3066-

CN5443

13

12

11

10

9

8

7

6

5

4

3

2

1

GNDU
OSDCS
OSDRT
OSDDT
EXP/OSD DT4
EXP/OSD CLK
EXPOE
EXPST
FV
GNDFV
MRV
MRGND
MRGND

5441

STBY

CN2002

I

CN2603

2/4

K

TUNER L

GNDA

TUNER R

GNDA

MRtoVOL L

GNDA

MRtoVOL R

GNDA

MROUT R

GNDA

MROUT L

GNDA

FR IN

GNDA

FL IN
GNDA
GNDA

V+7V

V-7V

CN5452

52045-1945

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

(TL)

(MR)

(MR)

(F)

(MR)

(TL)

(MR)

(F)

(MR)

XKP3071-A

CN5454

1

TUNER L

2

GNDA

3

TUNER R

4

GNDA

5

MRtoVOL L

6

GNDA

7

MRtoVOL R

8

GNDA

9

MR ASEL L

10

GNDA

11

MR ASEL R

12

GNDA

13

ASEL L

14

GNDA

15

ASEL R

16

GNDA

17

MR VASEL R

18

GNDA

19

MR VASEL L

20

GNDA

21

GNDA

22

(MR)

(F)

(MR)

(F)

23

XKP3071-A

CN5453

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

V+7V
V-7V

MROUT R
GNDA
MROUT L
GNDA

MR ASEL L

GNDA
MR ASEL R
GNDA
ASEL L
GNDA
ASEL R
GNDA
MR VASEL R
GNDA
MR VASEL L
GNDA
FR IN
GNDA
FL IN
GNDA
GNDA
V+7V
V-7V

B

CN6203

A

C

CN6302

B

D

CN5451

SW

GNDA

GNDA

SR

GNDA

SL

GNDA

CN2502

SBR

GNDA

1/4

SBL

GNDA

K

MIC

GNDA

FV L

GNDA

FV R

52044-1745

2

C

4

6

8

10

11

12

13

14

15

16

17

(SW)

1

(C)

3

5

(S)

7

9

(SB)

(MIC)

(FVL)

VSX-74TXVi

56

CN5455

XKP3068-

(SW)

1

SW

2

(C)

(S)

(SB)

(MIC)

(FVL)

GNDA

3

C

4

GNDA

5

SR

6

GNDA

7

SL

8

GNDA

9

SBR
GNDA

10

SBL

11

GNDA

12

13

MIC
GNDA

14

FV L

15

GNDA

16

17

FV R

E

CN6204

A

F

HF

37

7

8

1234

3.7 COMPOSITE V ASSY

A

JA2001

AKB7176

(1/2)

DVD

JA2001

AKB7176

(2/2)

JA2001

AKB7176

B

C

GCV

(CHASSIS)

JA2002

AKB7176

(1/2)

JA2002

AKB7176

(2/2)

DVR1/VCR1

IN

JA2003

AKB7176

(1/2)

DVR2/VCR2

IN

JA2004

AKB7176

(1/2)

(CHASSIS)

SAT

VIDEO1

GCV

JA2002

AKB7176

GCV

JA2003

AKB7176

D

E

(C'Site)

2

1

3

(C'Site)

TV

4

C2091

0.01

5

C2097

STBY

(C'Site)

2

1

3

(C'Site)

4

C2092

0.01

5

C2098

STBY

(C'Site)

2

1

1

(C'Site)

2

C2089

0.01

C2093

0.01

5

C2099

STBY

V+56V

DAP202K

D2001

GVV

R2001R2002

R2003

R2004

R2005

R2006

R2090

75

75

75 75

75 75

C2037

STBY

C2001

STBY

C2002

STBY

C2003

STBY

C2004

STBY

C2005

STBY

C2006

STBY

VOS2VOS1

100/10

GOS2GOS1

C2090

GNDU

100/10

C2038

STBY

DVD

SAT

DVR1

DVR2

VOS1

GOS1

TV

VD1

0.047/25

C2039

CH

100p

C2050

VDD1

IC2007

VSS1

1

12p

C2041

ASS1056

14.31818MHZ

X2001

CH

TV

DVD

IPOD

16

141315

TV

VDD

DVD

IPOD

CD74HC4051PWR

(MAIN ROOM)

IC2001

VIDEO1

FRONT V

DVR2

1

452

3

DVR2FVDVR1

VD1

TV

DVD

IPOD

16

141315

TV

VDD

DVD

IPOD

CD74HC4051PWR

(SUB ROOM)

IC2002

VIDEO1

DVR2

FRONT V

1

2435678

VD1

FV

DVR2

R2022

1k

11

212423

20

19

181415

C3

C2

RST

Xin

254

322

C2042

SEPin

SEPout

PDC131A

(OSD)

OSCin

XoutC1BLANK

L2003

33uH

CH

12p

24p

C2043

SEPc

SYNin

OSCout

CHARACKDTCSVDD2

768

1

CH

24p

C2044

SAT

121110

SAT

DVR1

INH

6

7

(C'Site)

SAT

121110

A

SAT

DVR1

INH

(C'Site)

DVR1

YB

1200p

C2049

161713

CVin

VDD1

10

11912

CH

CH

100p

C2046

C2045

BAC

VEE

B

VEE

YB

C2048

VSS2

9

VSS

8

9

C

VSS

5.1K

1200p

R2023

CVout

100p

V+56V

V-56V

V-56V

(OSD)

C2040

R2020

CH

C2047

V+56V

MRINH

3.9K

R2024

R2021

100p

VSW1
VSW2
VSW3

C2016 C2015

VINH

MRC

C2017

C2018

OSRT

C2051

GOS2

0.047/25

VOS2

330

330

330

CH

R2019

0.01 0.01

0.01

0.01

STBY

SWC
SWB
SWA

V52BMRA
V52AMRB

C2055

OSDDT
EXCK
OSCS

B

0.01

DVD

A-1 B-1

SERVICE
CHECKER

HDMI Direct Pass

A-2

B-2

VOUT

VIN

(C'Site)

V+56V

Q2001

2SC4081

C

E

C2052

100/10

1K

R2025

V-56V

VMNT

(OSD)

(OSD)

(OSD)

OSD

VMNT

1615141312911

VDD

THRU/HDMI

IC2003

0

1

245

31687

VOUT

VC

(C'Site)

1615141312

2X1

VDD

IC2004

0231Y

21345

R2026

STBY

1

0

SELECT

0

1

(C'Site)

VIN

0

OUTPUT

10

ABC

INH

11910

SEL

INH

VEE

VEE

VC(C'Site)

CD74HC4053PWR

VSS

V+56V

B3A

CD74HC4052PWR

VSS

867

V-56V

V+56V

0.010.01

C2020 C2019

V-56V

MR(C'Site)

0.01

C2021

0.01

C2022

(C'Site)

(C'Site)

F(C'Site)

MR(C'Site)

F

VC(C'Site)

: VIDEO SIGNAL ROUTE (C'Site)

: VIDEO SIGNAL ROUTE F(C'Site)

: VIDEO SIGNAL ROUTE MR(C'Site)

: VIDEO SIGNAL ROUTE VC(C'Site)

(OSD)

: VIDEO SIGNAL ROUTE (OSD)

I

38

1234

VSX-74TXVi

5678

C2070

STBY

R2070

V+56V

Q2070

STBY

C

B

E

0

STBY

R2071

V-56V

C2028

100/10

C2029

100/10

VC(C'Site)

MR(C'Site)

TK15420M

4.7K

R2013

4.7K

R2014

IC2005

TK15420M

IC2005

(1/2)

R2015

R2016

(2/2)

V+56V

VC(C'Site)

100/10

C2026

C2027

100/10

V-56V

MONITOR OUT

0.01

0.01

MR OUT

8

+

3

1

-

4

2

R2017

2k

C2030

1.8k

STBY

C2031

STBY

1.8k
R2018

6

8

-

5

+

4

C2024

C2025

2k

7

(C'Site)

0.01

C2034

C2035

0.01

V+56V

100/10

C2013

100/10

C2014

(C'Site)

(C'Site)

IC2006

1

13

VEE

SW2

RECOUT

SW1

IN3

35264

REC1

1

8

101211149

NC

IN1

VCC

OUT1

MUTE1

SEL

IN2

MUTE2

OUT2

GND1

GND2

NJM2279M

7

COMPOSITE V ASSY

I

(AWX8620)

R2007

R2091

R2008

R2009

75

0

75

75

C2008C2009

C2007

180p

180p

180p

GVV

CH

CH

CH

C2094

0.047/25

MR(C'Site)

C2086

0.01

R9095

0

(at C2095)

GVV

1

2

4

4

JA2005

AKB7175

MONI OUT

3

(CHASSIS)

DVR1/VCR1 OUT

JA2003

AKB7176

3

(1/2)

3

DVR2/VCR2 OUT

JA2004

AKB7176

(1/2)

JA2004

5

AKB7176

(CHASSIS)

A

GCV

B

C

GCV

CSI

CCONT

CCONT

100/50

C2036

V+56V

R2095

R2035

STBY

GCVGVV

EXOE

MRINH

47k

1615141312911

OE

VDD

PORT EXPANDER PORT EXPANDER

CD4094BNS-TBB CD4094BNS-TBB

IN

IC2009

CLK

STROBEQ1SERIAL

1245386

47k

VDT5

EXST

STBY

R2011

C2096

R2092

15371191315

XKP3078

CN2001

i-pod

GNDV

SWA

EXCK

IPOD

0

(C2011)

V-5.6V

SWB

V1M

V-56V

V-5.6V

N

SWC

Q7Q5Q6

Q2

V2M

V+56V

GNDV

Q8

Q3

GNDV

(C'Site)

V1M

1

10

QS

Q'S

VSS

Q4

7

47k

R2033

47k

R2034

VINH

MUTE

MRINH

8624 1012 14

MRINH

V+5.6V

V+5.6V

CN4317

C2054

MUTE

C2082

STBY

R2082

0

VMUTE

V2M

1614151131012119

0.01

IC2008

1243567

VOUT

75

1000/6.3

R2012

C2012

VC(C'Site)

NC

VOUT

GNDV

GNDV

EXOE

OE

VDDSTROBE

IN

SERIAL

R2036

0

VDT4

EXST

VIN

(C'Site)

VIN

REC2

MRB

MRC

Q5Q6Q7

CLK

Q1Q2Q3

EXCK

V52A

VSW1

V-56V

V52B

Q8

Q'S

Q4

VSW2

VSW3

MRA

NOTES

1.RESISTORS
Unit: k-k , M-M or unless otherwise noted.
Rated power: 1/16W unless otherwise noted.
Tolerance: 5%(J) unless otherwise noted.

2.CAPACITORS
No marked Capacitors are CEAT or CKSRYB.
Unit: p-pF or µF unless otherwise noted.
Rated Voltage: shown as

3.DIODES
No marked Diodes are 1SS355.

Parts or parts block marked by "STBY" are standby.

VDT5

R2031
R2032

QS

0.01

C2053

VSS

8

R2027
R2028
R2029
R2030

"Capacity(µF)/Voltage(V)",

or 50V unless otherwise noted.

47k
47k

GVV

47k
47k
47k
47k

OSCS
OSRT
OSDDT
VDT4
EXCK
EXOE
EXST

R2010

FV

0

F(C'Site)

MR
(C'Site)

0.01

STBY

C2088

C2010

C2087

GVV GNDU

XKP3077

CN2002

GNDU

1

OSDCS

2

OSDRT

3

OSDDT

4

5

EXPDT4

6

EXPCK

7

EXPOE

8

EXPST
FV

9

GNDV

10

MRV

11

12

GNDM

13

GNDM

0.01

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.

D

CN5443

F

E

F

56

VSX-74TXVi

I

39

7

8

1234

3.8 S-VIDEO ASSY

A

INPUT 1

AKP7043

CN2203

(2/3)

C2278

C2286

NoAssign1

GCS

INPUT 2

AKP7043
CN2203

(3/3)

STBY

B

STBY

CN2204

(1/2)

C2291

STBY

GCS

(CHASSIS)

DVR1/VCR1

IN

AKP7020

CN2205

(1/2)

C2279

C2288

GCS

DVR2/VCR2

IN

AKP7020

CN2206

(1/2)

C2280

C2289

GCS

C2287

STBY

11

C

D

NOTES

1.RESISTORS

E

Unit: k-k , M-M or unless otherwise noted.
Rated power: 1/16W unless otherwise noted.
Tolerance: 5%(J) unless otherwise noted.

2.CAPACITORS
No marked Capacitors are CEAT or CKSRYB.
Unit: p-pF or µF unless otherwise noted.
Rated Voltage: shown as

3.DIODES
No marked Diodes are 1SS355.

Parts or parts block marked by "STBY" are standby.

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.

89

7106

0.1

STBY

1314

12

11

15

3

4

2

5

STBY
CN2204

(2/2)

98

7

10

CN2204

3

241

5

0.1

STBY

NoAssign3

3

241

5

0.1

STBY

NoAssign2

"Capacity(µF)/Voltage(V)",

or 50V unless otherwise noted.

F

V+56S

V-56S

V+56S

V-56S

V+56S

V-56S

V+56S

V-56S

0.1

C2225

C2226

0.1

C2228 C2227

C2246C2245

0.10.1

0.1

C2248C2247

0.1

SSW1
SSW2
SSW3

SINH

SSW1
SSW2
SSW3

0.1

0.1

SINH

SMRA
SMRB
SMRC

MRINH

SMRA
SMRB
SMRC

MRINH

C2283

3.3/50

S(Y)

S(C)

S(Y)

S(C)

75
75

STBY

C2295

GCS GSV

(CHASSIS)

HDMI Direct Pass

IC2271
LA7213

R2271 R2273

330

R2222
R2221

STBY

C2296

SYIN

S(Y)

SYIN

220k

R2272

GND

R2232

SERVICE

R2231

SERVICE

SYNC

SEP

1423

C2282

SCIN

V-SYNC

SEP

1

4.7k

100/10

SYOT

C2221

1000/6.3

VCCGND

5

C2281

SCOT

C2222

D2272

100/10

Q2271
RT1N241M

0.1

V+56S

B

SDET

D2271

R2274

C

E

GSV

MRINH

22k

S(C)

VCS(Y)

VCS(C)

54321

8

614

SCIN

SYOUT

GND

SCOUT

GND

GND

SDET

1179

10

VMUTE

12

MRINH

V+5.6V

13

V+5.6V

R2295

SERVICE

R2294

SERVICE

R2229

(L2202)

R2250

GAV

GAV

(L2201)

16

V-5.6V

0

0

CN2201

1715

V-5.6V

XKP3079

R2241

Y
C

Y
C

Y
C

Y
C

Y
C

Y
C

STBY

R2240

0.1
STBY

C2202

75

R2202

R2243

STBY

R2242

0.1
STBY

C2204

75

R2204

R2245

R2244

STBY

STBY

C2210

1

STBY

R2210

R2247

R2246

STBY

C2212

6

STBY

R2212

R2249

STBY

R2248

0.1
STBY

C2206

75

R2206

R2239

R2230

0.1

C2208

75

R2208

C2200

C2234

C2230

STBY

C2254

C2250

STBY

STBY

C2268

STBY

STBY

STBY

STBY

STBY

STBY

C2201

C2233

STBY

C2229

STBY

C2253

C2249

C2267

S(Y)

S(C)

STBY

S(Y)

S(C)

STBY

STBY

STBY2_Y

STBY2_C

STBY

S(Y)

S(C)

STBY

S(Y)

S(C)

STBY

75

R2201

75

R2203

STBY

R2209

STBY

R2211

75

R2205

75

R2207

IN1_Y
IN1_C

IN2_Y
IN2_C

STBY1_Y

STBY1_C

V1Y
V1C

SIN

V2Y
V2C

IC2201

STBY2

STBY2_Y

IC2202

STBY2

IC2205

STBY2

IC2206

STBY2

161514

142

161315

143

STBY2_C

161314

STBY2_Y

STBY2_C

IN1_Y

IN2_Y

13

IN 1

IN 2

VDD

MUTE

CD74HC4051PWR

DVR2

F.VIDEO

3

V2Y

FVY

IN2_C

IN1_C

14

IN 1

IN 2

VDD

MUTE

CD74HC4051PWR

DVR2

F.VIDEO

2

FVC

V2C

IN2_Y

IN1_Y

15

IN 1

IN 2

VDD

MUTE

CD74HC4051PWR

F.VIDEO

DVR2

312

4

FVY

V2Y

IN2_C

IN1_C

141613

15

IN 2

IN 1

VDD

MUTE

CD74HC4051PWR

VIDEO1

F.VIDEO

412

3

FVC

V2C

STBY1_Y

121011

A

STBY1

Y MAIN

SELECTOR

DVR1

INH

576

V1Y

STBY1_C

121110

A

B

STBY1

C MAIN

SELECTOR

DVR1

INH

567

V1C

STBY1_Y

111012

A

STBY1

Y REC

SELECTOR

INH

DVR1

567

V1Y

STBY1_C

111012

A

STBY1

C REC

SELECTOR

INH

DVR1

657

V1C

9

B

C

VEE

VSS

8

9

C

VEE

VSS

8

9

B

C

VEE

VSS

8

9

B

C

VEE

VSS

8

40

J

CN4316

N

VSX-74TXVi

1234

5678

C2224C2223

SYIN

SCIN

V+56S

STBYSTBY

V-56S

SV

S52B
S52A

SYOT

SDET

SCOT

S(Y)

S(C)

S(Y)

S(C)

GSV

VCS
(C)

SRC2
SRC1

SRC2
SRC1

VCS
(Y)

IC2209

SD

S(Y)

IC2203

R2297

STBY

S(C)

IC2207

15

2

VDD

2Y0

231 16

151416

2

VDD

123

2

VDD

2Y0

213

FS(C)

V+56S

14

111312910

03X

A

1

3

131211109

1

Y20

3

45687

141615

131211109

1

31INH

S(Y)

S(C)

B

OUTPUT

SEL

CD74HC4052PWR

INH

VEE

VSS

1

64587

V-56S

0

R2298

(C2297)

30X

A

B

OUT 1

SEL

CD74HC4052PWR

INH

VEE

VSS

1

V-56S

0X3

B

A

OUT 2

SEL

CD74HC4052PWR

VSS

VEE

56487

V-56S

SOE

SRC2

14

161215

VDD

PORT EXPANDER PORT EXPANDER

CD4094BPW-TBB
IN OE

IC2282

STROBE

SERIAL

CLKQ2Q1

2153486

R2287

SDT3

SST

SCK

: VIDEO SIGNAL ROUTE S(Y)

: VIDEO SIGNAL ROUTE S(C)

: VIDEO SIGNAL ROUTE FS(C)

C2232 C2231

C2252 C2251

C2266 C2265

13

0

SMRA

0.01

0.01

V+56S

0.01

0.01

V+56S

0.01

0.01

47k

11

Q7Q5Q6

SMRB

1

Q8

Q3

SMRC

S(Y)

S(C)

S(Y)

S(C)

S(Y)

S(C)

R2291

Q'S

Q4

7

SRC1

91110

SDT4

QS

VSS

C2284

R2285
R2286
R2289
R2290

0.01

C2239
100/10

0.1

C2240

C2259

100/10

0.1

C2260

C2273

100/10

0.1

C2274

C2285

VCS(Y)

VCS(C)

V+56S

IC2204

TK15420M

R2223

4.7k

R2225

1.8k

4.7k

1.5k

R2224

R2226

IC2204

TK15420M

V-56S

IC2208

TK15420M

R2251

4.7k

R2253

1.8k

4.7k

1.5k

R2252

R2254

IC2208

TK15420M

IC2210

TK15420M

4.7k

1.8k

R2263

R2261

4.7k

1.5k

R2262

R2264

IC2210

TK15420M

V+56S

SOE

1615131214911

0.01
OE IN

VDD

CD4094BPW-TBB

IC2281

STROBE

SERIAL Q2Q1

2145386

47k
47k
47k
47k

SDT2

SST

FS(Y)

: VIDEO SIGNAL ROUTE FS(Y)

: VIDEO SIGNAL ROUTE VCS(Y)

: VIDEO SIGNAL ROUTE VCS(C)

VSX-74TXVi

56

3

2

6

5

5

6

2

3

5

6

2

3

S52B

Q5

CLK

SCK

+

(1/2)

-

-

(2/2)

+

+

(2/2)

-

-

(1/2)

+

+

(2/2)

-

-

(1/2)

+

Q6

SSW1

8

4

R2227

R2228

1.8k

8

4

4

8

R2255

R2256

1.8k

4

8

4

8

R2265

R2266

1.8k

4

8

Q7QSQ8

SSW2

1

2k

STBY

C2241

STBY

C2242

7

7

2k

STBY
C2261

STBY
C2262

1

7

2k

STBY

C2275

STBY

C2276

1

SINH

SSW3

10

Q'S

7

S52A

47k

VSSQ3Q4

C2235

C2236

C2255

C2256

C2269

C2270

100/10

100/10

100/10

100/10

100/10

100/10

R2284

S-VIDEO ASSY

J

(AWX8622)

S(Y)

C2237

C2238

S(C)

V-56S

S(Y)

C2258C2257

S(C)

V-56S

S(Y)

C2271

C2272

S(C)

SDT3

R2281
R2282
R2283

GNDU

7

0.01

0.01

0.01

0.01

V+56S

0.01

0.01

V+56S

V+56S

47k
47k
47k

C2243

0.1

C2263

0.1

C2277

0.1

SDT4
SDT2
SCK
SOE
SST

FVY

FVC

R2213

R2214

R2215

R2216

R2217

R2218

75

75

CH

C2214

180p

GSV

75

75

C2216

180pCH

GSV

75

75

CH

C2218

180p

R2219

R2220

C2220

STBY

C2213

C2215

C2217

0

C2219

STBY

0

CH
180p

180pCH

CH
180p

XKP3076

CN2202

FS(Y)

FS(C)

GSV

Y

C

453

2

(CHASSIS)

Y

C

8

6

Y

C

8

6

1

3

5

7

9

10

11

2

4

6

8

C2292

0.01

C2203

STBY

CN2203

9

10

9

10

GNDU
GNDU
DT4
DT2
EXPCK
EXPOE
EXPST
FVY
GNDV
FVC
GNDV

MONITOR

OUT

AKP7043

1

(1/3)

16

DVR1/VCR1

AKP7020

CN2205

7

CN2205

(CHASSIS)

DVR2/VCR2

AKP7020

7

CN2206

CN2206

CN2203

OUT

(2/2)

C2293

0.01

C2205

STBY

11

OUT

(2/2)

C2294

0.01

C2207

STBY

8

GCS

11

GCS

GCS

CN5442

F

J

A

B

C

D

E

F

41

1234

3.9 COMPONENT & VOL ASSY (1/4)

-

+

V-12A

V+12A

+

R

­R2634

100p

Q2631
RT1N241M

(F)

100p

CH

8

1

L

IC2632

4

BA4560RF

C2636

C2635

IC2632

8

(2/2)

7

4

2.2k

CH

A

INPUT

DSPFL

B

FLIN

DSPFR

FRIN

DAN217

D2503

(F)

(F)

(SW)

IC2630

1IN VCC

(SW)

2

1OUT

(SW)

3

2OUT CONT4

4

2IN

5

CONT2

6

CONT3 3OUT

7

SW DOWN MIX

V+7A

R2625 R2633R2631

R2627
56

TC4066BFN

CONT1

4IN

4OUT

3INVSS

R2628 R2630

56

R2626

V+7A

2.4k

R2629

3.3k V+7A

141
13
12
11
10
9
8

3.3k

2.4k

Q2645

3

2

R2689

47k

YB

0.01

C2650C2649

YB0.01

V-7A

R2632

RT1P241M

1

C2633

0 2.2k

2

3

5

6

0

C2634

R2635

100

(1/2)

YB0.01

YB

GNDA

0.01

R2636

100

C2637

10/50

C2638

10/50

FLIN

FRIN

R2637

V-7A

R2638

(F)

D2504

DAN217

470k

470k

DAN217

V+7A

D2505

(F)

D_FL

1516141312911

2X0X1X

XCOM

C DOWN MIX

SELECT

2Y

0Y VDD1Y3Y

YCOM

2

174

3

D_FR

586

(F)

V+7A

VSX-74TXVi
ONLY

YB 0.01

C2651

3X

INH

10

A

VEE

B

VSS

TC4052BFT

YB

C2652

0.01

IC2631

V-7A

V+7A

R2690

47k

Q2630

RT1N241M

DSPIN

XLSSN

(C)

YB

C2653

VEE

stby

100

OUTSW

OUTSR

OUTSL

OUTSB

R2677

VLDT1

B

VSS

GND8

OUTC

DATA

R2664

GND

GND

GND

GND

VCC

GND
VEE

VDD
CLK

1K

VLCLK

C2654

V-7A

(F)

100

28
27
26
25
24
23
22
21
20
19
18
17
16
15

1K

R2678

0.01

0.01

C2666

YB

R2665

100

R2666

100

R2667

100

R2668

100

V+5U

YB

0.01

R2691

47k

CDMIX

RT1N241M

Q2632

(F)

(C)

(SW)

(S)

V+7A

C2667

V-7A

C2668

YB

0.01

CONT

YB

0.01

N

N

H

1/4

V-7A

GNDDAC

ROUT

GNDDAC

LOUT
GNDA
GNDA
GNDA

FLIN

GNDA

FRIN

GNDA

GNDA

SWIN

SLIN

GNDA

SRIN
GNDA
SBLIN
GNDA

SBRIN

GNDA
STLIN
GNDA

STRIN

FRIN

2/4K

FLIN

SWIN

GNDA

GNDA

SRIN
GNDA

SLIN

GNDA

SBRIN

GNDA
SBLIN
GNDA

GNDAV

GNDAV

FVR

10

12

CIN

14

XKP3076

CN2506

CN2502

52045-1745

CIN

12

MIC

FVL

1

2

3

4

5

6

7

8

9

11

13

11

10

9

8

7

6

5

4

3

2

1

17

16

15

14

13

11

10

9

8

7

6

5

4

3

2

1

DSPFL

(F)

DSPFR

DSPC

(C)

(S)

(SB)

(F)

(F)

(SW)

(C)

(S)

(SB)

GNDA GNDAV

C

CN2501

BTEM14P-1R

CN4325

D

CN4312

E

CN5451

F

K

42

FRIN

FLIN

FRIN

FLIN

EXTC

(MIC)

(FVL)

C2694

EXTC

DSPC

V-7A

STBY

GNDDAC

DSPSBL

DSPSBR

DSPSTL

DSPSTR

EXTSBR

EXTSBL

MIC

FVL

FVR

(C)

(C)

stby

D2506

V-7A

2/4K

2/4K

2/4K

V-7A

D2508

stby

V-7A

VSX-72TXV
ONLY

D2501

D2502

stby

stby

V+7A

(SW)

V+7A

stby

D2507

(SW)

D2510

D2509

stby

stby

VSX-74TXVi

V+7A

R2660

0

R2659

VSX-72TXV

ONLY

0

R2657

0

R2658

(F)

(C)

(S)

GNDA

0

C2676

10/50

43

INFRA

44

INFLA

45

INSWA

46

INSRA

47

INSLA

48

INCA

49

INSBA

50

INFRB

51

INFLB

52

INSWB

53

INSRB

54

INSLB

55

INCB

INSBB

12 453566871291011 1314

16

151113

12910

2X

1X

0X

VDD

TC4052BFT

C DOWN MIX

3X

XCOM

(C)

(C)

IC2636

0Y

2Y

241

YCOM

3Y

INH

1Y

6758314

(C)

R2680

C2672

stby

TNFL

BNF2R

BNF1R

IC2637

BD3813KS

stby

stby

C2671

stby

C2670

BNF1L

(C)

R2679

BNF2L

GND

stby

GND

OUTFL

(C)

C2675

10/50

C2674

C2673

stby

stby

414240 39 38 3537 36 3234 33 293031

TNFR

VINFR

VINFL

GOUTFL

GOUTFR

6 CH E-VOL

GOUTSW

GND

VINSL

GOUTSL

VINSR

GOUTSR

C2660

10/50

VINSW

C2661

10/50

C2662

10/50

2/4K

CONT

GOUTC

C2663

10/50

VINC

100p

100p

GNDU

GND

PORTA

C2664

C2665

A

C2669

R2663

OUTFR

PORTB

CH

CH

1234