Pioneer VSX-49-TXI 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 2002

AUDIO/VIDEO MULTI-CHANNEL AMPLIFIER

http://receiverfaq.ru/

VSX-49TXi

STANDBY/ON

STANDBY

VIDEO AUDIO

INPUT SELECTOR

DVD/LD TV/DVD SAT VIDEO

OFF ON

CD-R/

VCR VCR2 VCR3 CD TUNER PHONO

TAPE1/MD

LISTENING MODE SELECTOR

MAC3

MULTI CH INPUT

MASTER VOLUME

DOWN

UP

VSX-49TXi

AUDIO/VIDEO MULTI-CHANNEL RECEIVER

VSX-49TXi

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

Model Type Power Requirement Remarks

VSX-49TXI KU/CA AC120V

ORDER NO.

RRV2644

For details, refer to "Important symbols for good services" .

T-ZZR AUG. 2002 printed in Japan

1234

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

A

MOTHER

R

ANT

FM/AM TUNER

A

MODULE

CN2705

(13P)

L CH

7 7

CN5802

(13P)

ASSY(1/5)

CN5814

(20P)

TXL TXL

20

CN3401

(20P)

20

ANALOG IN &

L

A/D ASSY

IC2001 TC9164AF

DVD/LD

L

TV L

SAT L

VCR1

B

PLAY L

VCR2

PLAY L

VCR3

PLAY L

VCR3 REC L

C

VCR1

REC L

VCR2

REC L

I

A/V Function Selector

27 26 25

24

22

21 18 19

IC2002 TC9162AF

Function Selector

27 26

24 23 18

21

20

23

20

17

A/V MR

25

22

17

19

(17P)

R

MOTHER ASSY(2/5)

B

A/V I/O ASSY

IC2051-1/2 UPC4570C

3 2

(MR)

1

IC2053-2/2

BA4558F

CN2002

1 12

MIC

1

CN5821

(17P)

1

MIC

1

2 3

MIC & OPT ASSY(1/2)

D

JA3202 SETUP MIC

CN3202

VIDEO

L

CN3204

MIC

FV L

22

CN3205

33

CN3206

IC3201-1/2

M5220FP

3 2

MIC AMP

Q3204

1

(F)

(MR)

MR VOL

IC2052

M62429FP

8 7

(REC)

CN2001

(17P)

FV L

12

CN5820 CN5806

(11P)

5

FV L

711

CN3207

(11P)

H

MIC AMP ASSY

CN2001

(17P)

(REC)

(MR)

4

8

14

VFUNCL

MR OUTL

RECL

MR OUT L

PHONE

L

CD L

TAPE1

PLAY L

FL IN

TAPE2

PLAY L

TAPE1

REC L

TAPE2

REC L

SL IN

Refer to section "3.1.4 1394 MODULE Block".

JA1

JA2

FRONT A/V

J

ASSY

IC3502-2/2 NJM2068D

6 5

E

SLOUT

FLOUT

COUT

SBLOUT

22 23 26 27 19 18

IC3401 TC9163AF

A/D Mode Selector

20

24

17

IC3701-2/2

IC3601-2/2

IC3801-2/2

F

IC3702-2/2

6

7

5

IC3602-2/2

6

7

5

IC3802-2/2

6

7

5

IC3421 AK5383VS

D/A Converter

7

4

5

IC3461 AK5383VS

Surround

D/A Converter

7

4

5

IC3441 AK5383VS

D/A Converter

7

4

5

IC3481 AK5383VS

D/A Converter

7

4

5

Front

C/SW

Back

CN3403

(30P)

(F)

15

(S)

15

(C)

15

(SB)

15

7

3

5

1

ADFFDT

ADSRDT

ADCWDT

ADSBDT

IC3423-2/2

M5220P

5 6

(REC)

IC3462-2/2 UPC4570C

5 6

(S)

AO

1394 MODULE

CN401

(22P)

R

MOTHER ASSY(3/5)

CN5816

(30P)

CN5810

(17P)

7

3

5

1

IC3422 TC9163AF

Audio Function Selector

7

8

4

6

2

IC3901 BU4052BCF

Function Selector

7

CN702

(17P)

AF DATA

AS DATA

AC DATA

AB DATA

27

26 25 23

22 21

19

18

11 15 14

Audio MR

10

14

12

16

24

20

17

13

DIGITAL

IN

R

MOTHER ASSY(4/5)

OPT

IN

CN705

(22P)

DIR & DIT DSP 1 & 2

DSP U-COM

RF Demodulator

S

(F)

IC3424-1/2 UPC4570C

(F)

5 6

(S)

SLOUT

MIC & OPT

I

ASSY(2/2)

CN3201

5

OPT5 IN

5

CN5804

CN5809

8

F OPT

COAX

IN

2

DSP ASSY

CN3401

7

COUT

FLOUT

(5P)

(9P)

CN703

(9P)

(20P)

CN3402

(F)

(SB)

(C)

SBLOUT

CN709

CN707

12 16

(17P)

14

10

8 4

2

6

VFUNC INL

MR LOUT

MC CIN

MC SBLIN

EX FLOUT EX

SBLOUT

EX COUT

EX SLOUT

20

1234

VSX-49TXi

5678

A

(MR)

(SB)

SBLO

SLO

CTO

FLO

R

CN5814

(20P)

12 16

8 4

CN5815

(17P)

2

14

6

10

14

10

6 2

CN5813

(17P)

T

CN501

CN6002

U

MOTHER ASSY(5/5)

(F)

(SB)

(C)

(S)

(SB)

(S)

(C)

CN5820

(17P)

(F)

VFUNCL

4

MR OUTL

8

(C)

(F)

14

CN5817

(9P)

8 4

1

13

5 9

20

24

28

CN5818

(30P)

3

CN5819

(24P)

RECL

MC C

MC SDL

EXFLIN

EXSBLIN

EXCIN

EXSLIN

SBLIN

SLIN

CIN

FLIN

(F)

(S)

(SBL)

(C)

DSP 3 ASSY

DSP 3

Front Digital

IC6021

DF1706E

F

1 24

CW

S

SB

Filter

D/A Converter

PCM1704U-1

1 14

Same as the above circuit.

DAC 10 ASSY

CN5002

CN5001

(30P)

CN5003

FL

SL

SBL

CT

CN4801

IC6101

(9P)

8 4

1

13

5 9

20

24

28

3

(24P)

1

3

5

7

(8P)

CN4805

(15P)

IC6103

NJM5534DD

IC5043-1/2

UPC4570C

1

IC5083-1/2

UPC4570C

1

IC5181-1/2 NJM2068D

2 3

(F)

(SB)

(C)

(S)

IC5023-1/2 NJM2068D

(F)

2 3

6 5

IC5023-2/2 NJM2068D

Voltage Amp

IC4101

PA9008A

IC4401

PA9008A

IC4601

PA9008A

V

C

7

CN4807

(15P)

2

1

3

(C)

2 3

IC5181-2/2

NJM2068D

6

1

5

1

7

Current Amp

IC4102,IC4103

IC4402,IC4403

IC4602,IC4603

(SB)

7

PBD001A

EXC

IN

EXSBL

IN

IC5001

TC9274N-016

Mode Selector

5

4 2

3 16 19 18

8 10

7 13

11 12

POWER AMP (L) ASSY

7

IC4301

PA9008A

Voltage Amp

W

(C)

CN4807

(C)

CN4808

POWER AMP (C) ASSY

IC6105-2/2 NJM2068D

IC6105-1/2

NJM2068D

6

3

7

5

2

CN6004

(F)

1

(C)

(S)

(SB)

(15P)

(17P)

VR & PRE OUT

Q

ASSY

Front

Main Volume

IC5021

TC94A07F

(F)

7 5

Surround Back

Main Volume

IC5081

TC94A07F

(SB)

6

(C)

(S)

14

CG1+

6

CG1-

8

FLO

2

CTO

6

SLO

10

SBO

14

7 5

L/SW

Main Volume

IC5041

TC94A07F

7 5

Surround

Main Volume

IC5061

TC94A07F

7 5

(C)

CN4805

(15P)

IC4302

PBD001A

Current Amp

CN4806

IC4303

PBD002A

Current Amp

(F)

(C)

(S)

(SB)

(SBL)

J4801

(F) (F)

(S)

(SBL)

CN4805

6

CN4806

8

Pre-Amp

IC5022-1/2

OPA2134PA

3

1

2

Pre-Amp

IC5082-1/2

OPA2134PA

3

1

2

Pre-Amp

IC5042-1/2

OPA2134PA

3

1

2

Pre-Amp

IC5062-1/2

OPA2134PA

3

1

2

12 14 15

BU4052BCF

Surround Back Selector

1

4

2

3

1 | 4

10

|

13

IC5084-2/2

FLO

CO

SLO

SBLO

1

|

4

10

|

13

CN4807

(15P)

CN4808

POWER AMP

X

(R) ASSY

: Audio Signal Route (F)

: Audio Signal Route (C)

: Audio Signal Route (S)

: Audio Signal Route (SB)

: Audio Signal Route (SBL)

(F)

(SB)

(C)

(S)

CN5006

(14P)

ORG

(MR)

(REC)

L

FRONT

L

SB L

PREOUT

CENTER1

SURROUND

L

(F)

FL

14

(S)

SL

12

(SBL)

SBL

10

CT

8

(C)

HPL

3

CN1203

1

4

2

3

(C)

3

FBL

3

J1206

CN1007

AJ

SP (B) ASSY

: Audio Signal Route (MR)

: Audio Signal Route (REC)

K

HEADPHONE ASSY

CN3203

(4P)

CN1201

(C)

(S)

(SBL)

CN1202

(SBL)

PHONES

SPC

SBL

SBR

SPB

CN1006

CN1206

RY1201

RY1202

RY1203

RY1204

RY1003

3

(4P)

B

C

SPA

FL

FR

D

SL

SR

E

FL

FR

F

56

VSX-49TXi

7

8

21

1234

A

B

C

D

E

F

Video Block

DVD/LD

TV/HDTV

SAT

VCR1

VCR2

VCR3

Y

C Y

C

CN2301

R

MOTHER ASSY(1/2)

FRONT A/V

J

ASSY

VIDEO

S-VIDEO

DVD/LD

TV/HDTV

VCR1 IN VCR2 IN VCR3 IN

Y

C

SAT

(Y)

(C)

(17P)

CN3204

Selector (COMPOSITE)

14

15

2

5

1

12

4

(C)

14

15

2

5

1

12

4

14 13

FY

FC

CN5823

14 13

F-VIDEO

5

FV-Y

6

FV-C

8

CN3206

(8P)

IC2101

TC74HC4051AFT

Video Function

14 3 15

2 5 1

12

4

14 3 15

2 5

IC2107

TC74HC4051AFT

Video MR Function

(17P)

H

5 6 8

(8P)

IC2301

TC74LVX4051FT

Video Function

Selector (Y)

3

(C)

3

IC2302

TC74LVX4051FT

Video Function

Selector (C)

CN5806

(11P)

FV-C

7

FV-Y

9

F-VIDEO

10

FV

18

CN5822

(19P)

MIC AMP ASSY

2 3 5

CN3207

(11P)

TC74HC4053AFT

OSD Input

Selector

5 4 3

TC74HC4053AFT

I/O Selector

13 14

CVOUT

Q2108

C

IC2303

TC74HC4053AFT

(Y) (Y)

F-VIDEO FV-Y FV-C

CN2101

(19P)

IC2103

IC2102

(OSD)

S/OSD SW (Y)

5

13

12

(Y)

(OSD)(OSD)

TC74HC4053AFT

S/O OSD SW (C)

(C)

5

13

12

(C)

2

FV

18

VI

VO

151

IC2104

13 15

PDC084A

OSD

IC2304

(C)

VIN

(OSD)

CVIN

4

14

(Y)

4

14

15

(C)

VOUT

OSD

3 71

IC2105-1/2

TK15420M

+6dB AMP

3

2

6 5

IC2105 (2/2)

TK15420M

+6dB AMP

(OSD)

OSD

(OSD)

CN2102

COMPOSITE ASSY

(C)

3 15

C

(12P)

1

7

(Y)

(C)

(Y)

Y

(Y)

(C)

CN2306

(8P)

75Ω

(Y)

(C)

(Y)

(C)

(Y) (C)

(OSD)

G

VIDEO CONNECT ASSY

MONITOR OUT

MR OUT

COMPONENT

S-VIDEO ASSY

D

IC2307-1/2 TK15420M

+6dB

3

1

2

IC2307-2/2 TK15420M

+6dB

6

7

5

IC2308

NJM2296M

REC OUT Selector (Y)

13

3

NJM2296M

REC OUT Selector (C)

13

3

IC2309

OSD

VIN

VOUT

OSD

CN3302

(8P)

Y

1

C

3 5

1 3 7

CN3301

(12P)

1

15

11

1

15

11

(OSD)

(Y) (C)

(OSD)

CN3303

CN2502

F

COMPONENT ASSY

IC2501

TC74LVX4052FT

Video Function

Selector (CY)

Y

IN1

Cb

Cr

14 13

5

IC2502

TC74LVX4052FT

Video Function

Selector (Cb, Cr)

(Y)

(C)

(10P)

75Ω

Y

MONITOR OUT

C

75Ω

Y

MONITOR OUT 2

C

75Ω

(Y)

(C)

(Y) (C)

(OSD)

(Cb)

(CY)

3 15

CbOUT

CYOUT

3 15

(Cb)

(CY)

13

(Cb)

(CY)

1314

(CY)

(Cb)

3

(C)

CN3304

(18P)

1 9 3 5

7 15 13

(Cr)

11

CrOUT

(Cr)

TC74LVX4053FT

Input SW

(COMPONENT)

4315114

(Cr)

3 2

(CY)

6

(Cb)

5

3 2

(Cr)(Cr)

IC2106-1/2 OPA2652U

+6dB AMP

Y

VCR1 OUT

C Y

VCR2 OUT

Y

VCR3 OUT

VIN VOUT

(Y)

Y

(C)

C

(OSD)

OSD CYOUT CbOUT CrOUT

IC2503

(CY)

1

75Ω

IC2105-1/2,2/2

OPA2652U

+6dB AMP

(Cb)

75Ω

7

75Ω

1

(Cr)

(CY)

(Cb)

(Cr)

Y

Cb

Cr

22

1234

VSX-49TXi

5678

Display Block

M

IC3002

BU2092F

LED Driver

REMOTE

RECEIVER

UNIT

SR IN

SR OUT

A/V I/O

B

ASSY

(Y)

(C)

DISPLAY ASSY

IR IN RMC

SR OUT

17 16 15

CN5821

(17P)

17 16 15

CN2002

(17P)

: VIDEO SIGNAL ROUTE : VIDEO SIGNAL ROUTE (Y) : VIDEO SIGNAL ROUTE (C)

V3001

FL Display

IC3001

PD5686A

Display U-COM

CN3001

11

RMC

CN5807

7

IC3001

PD5685A9

Main U-COM

Control Signal

(CY)

(Cb)

(Cr)

3002 3102

3003 3103

3004 3104

(17P)

R

MOTHER ASSY (2/2)

: Y SIGNAL ROUTE (COMPONENT) : Cb SIGNAL ROUTE (COMPONENT) : Cr SIGNAL ROUTE (COMPONENT)

O

MULTI JOG ASSY

P

VOL ASSY

N

INPUT SEL ASSY

(OSD)

: VIDEO SIGNAL ROUTE (OSD)

A

B

C

VIN

VOUT

OSD CYOUT CbOUT

CrOUT

1 9

Y

3

C

5

7 15 13 11

CN2852

(18P)

(Y) (C)

(OSD)

(Cr)

(CY)

(Cb)

(Cr)

Q2904

(Cb)

TC90A49F

5

AIN

(CY)

V-CONVERT

E

ASSY

IC2851

Y/C SEP.

YOUT

COUT

IC2859-1/3

TC74LVX4053FT

(Y)

(C)

(Cb)

OSD SW (Y)

14 13

LPF (Chroma)

(C)

(Cr)

IC2854-1/2 TK15420M

2 3

(C)

(Y)

1

IC2857-2/2 TK15420M

5 6

0dB Buffer

3

2

IC2857-1/2 TK15420M

Q2853

(Y) (Y)

24

20

Q2854

(OSD)

(CY)

IC2855-1/2 TK15420M

Y 0dB Buffer

3

1

2

IC2859-2/3

TC74LVX4053FT

(C) (C)

15 1

IC2860

TC74LVX4053FT

OSD SW (C)

(C)

3 4 5

(Y)

(OSD)

7

1

3 4 5

IC2859-3/3

TC74LVX4053FT

(Y)

(C)

TA1270BF

Chroma Decoder

(C)

(Y)

IC2853

6820

(CY)

22

21

(C)

(Y)

(Cb)

(Cr)

(Y)

IC2856-1/2

TK15420M

Y Invert Buffer

2

1

3

IC2855-2/2 TK15420M

C 0dB Buffer

6

7

5

IC2854-2/2 TK15420M

0dB Buffer

IC2858-2/2 TK15420M

0dB Buffer

IC2858-1/2 TK15420M

0dB Buffer

IC2856-2/2 TK15420M

Y/C MIX

5

7

6

(CY)

7

5

6

(Cb)

7

5

3

2

(Cr)

1

(CY)

(Cb)

(Cr)

D

E

F

56

VSX-49TXi

7

8

23

1234

A

B

C

D

E

Power Supply Block

SP (B) ASSY

AJ

RY1002

CN1002

FU1

LIVE

NEUTRAL

1

2

RY1001

AM

(3P)

VL AC1

VL AC2

5 4 3 2 1

7 6 5 4 3 2

1

3

VP AC2 VP AC1 VD AC2 VD CT VD ACT

VA AC2

VA CT

VA AC1

FL AC2 FL AC1

FL VF

VH AC1

VH AC2

AK

DIODE ASSY

TRANS (A) ASSY

T1

Power Transformer

IC1703

D1701

CN1601

CN1702

CN1701

AN

TRANS (B) ASSY

POWER AMP

V

-VH

+VH

(L) ASSY

10 11

CN4805

(15P)

+VH

-VH

W

+VH

-VH

CN4807

POWER AMP (C) ASSY

10 11

(15P)

+13V

RY-24V

GRY

BRN

CN1801

CN4803

CN4804

D1501 D1502

12 11 10

9 8 7 6 5 4 3 2

(12P)

AL

FUSE ASSY

7 6

(11P)

5 6

(9P)

FU4 4A

FU5 2A

FU6 2A

FU7 2A FU8 2A

RY-24V

CN1005

ST+12V

1

RY-24V

7

CN1001

(10P)

1

9

3

2

1

CN1003

RED

+VL (+54V)

BLU

-VL (-54V)

CN1802 CN4001

VP AC2

1

VP AC1

2

VD AC2

3 4

VD AC1

5

VA AC2

6 7

VA AC1

8

FL AC2 AC2

1

FL AC1

2 3

CN1803

(4P)

M

DISPLAY ASSY

-VH 7

+VH

6

CN4809

(11P)

-VH 5

+VH

6

CN4810

(9P)

VD CT

VA CT

FL VF

CN1103

(8P)

7

1

7

CN1102

(7P)

1

9

CN1101

(10P)

AB

CN1901

(4P)

1 2 3 4 5 6 7 8

1 2 3

IC1102

NJM79M24FA

REG.

T1101

D1101

AC PRIMARY ASSY

4

3

J4002

CN1904

D4002

D4003

D4004

1 2 3

REG.

Q1901

CN1902

(4P)

AE

FL SUPPLY ASSY

3001

+13V

AC1 AC2

A+20

CN1105 CN1301

1

3

3 5

REG.

CN1104

(14P)

IC1101

NJM78M56FA

AI

DSP DIODE ASSY

D1903

4

3

CN1904

IC4023

IC4024

IC4035

IC4036

AC1 VH

CN4002

(3P)

VH AC1

VH AC2

VH

AC1

AC2

123

U+5.6V

ST+5.6V

2 1 4

CN4811

(8P)

SW1301

1

POWER

3

FAN -27V ST+5.6V

AA

LOCAL SUPPLY ASSY

VP+9V

1 1

1

J4002

IC4021

LM2940CT-5.0

IC4022

NJM79M05FA

IC4033

NJM78M56FA

IC4031

LM2940CT-5.0

IC4032

NJM79M05FA

IC4043

IC4047

NJM78M15FA

IC4041

NJM7820FA

IC4042

NJM7918FA

IC4045

IC4046

D4005

1

3

CN3001

(17P)

1 2

U+5.6V ST+5.6V

-VH

+VH

V+20

CN5005

Q4051

REG.

Q4052

REG.

2 1 4

(8P)

AC

POWER SW ASSY

+5V REG.

IO

IC4011

LM10851T-5.0

IO

REG.

IO

REG.

IO

REG.

IO

REG.

IO

REG.

IO

REG.

IO

REG.

IO

REG.

J4004

(6P)

+27VF

1

-27VF

3

+55VH

4

-55VH

6

CN5004

(6P)

IC5002

V+16

NJM78M15FA

V-16

IC5003

NJM79M15FA

REG.

4 16

J4001

(2P)

CN4004

(9P)

3

RY-24V

+5VP

1

2

5

3

4

6

7

8

CN5003

+5.6VU

+5.6VV

-5.6VV

+15VT

+20VA

5 7 8

10

(24P)

7

RY-24V

FAN -27V

ST+5.6V

+5VD

-5VD

-20VA

V+27 V-27 V+20 V-20

CN1205

(8P)

3 5

CN5801

(14P)

CN5805

(9P)

1

2

5

3

4

6

7

8

CN5807

(17P)

17 16

5 7 8

10

CN5819

(24P)

AD

SP (A) ASSY

R

V-5V

+5VP

MOTHER ASSY

VST5

V+5D

V-5D

V+5U

V+5V

V12T

V+20V

V-20V

V+5U VST5

V+27

V+20

V-20

F

POWER AMP

X

(R) ASSY

24

POWER AMP

Y

(BR) ASSY

VSX-49TXi

VR & PRE OUT

Q

ASSY

1234

+5VP

CN705

CN704

(2P)

2

(22P)

5678

A

(16P)

(14P)

V-5D

2

1

T

U

V-15 V+15

1

V+15

V+5D

DSP3 ASSY

IC505

PQ3DZ13

REG.

DAC10 ASSY

IC6001

PQ3DZ13

REG.

V-5D

V+5D

3

7

4

V-15

V-5D

V+5D

41

3 7

VD3C

V+3DD

CN6003

(7P)

VDD5

CN401

(22P)

12 13

AO

1394 MODULE

IC1

NJM2391DL1-33

REG.

V+3D

REG.

IC2

MM1562FF

B

V+2D

DSP ASSY

S

VDD5

13 12

VDD5

IC713

PQ3DZ13

REG.

IC305

PQ3DZ13

REG.

IC415

PQ3DZ13

REG.

IC416

PQ7VZ5

REG.

VD3U

VD3A

V+3B

V1RB

CN402

(16P)

2

CN706

(14P)

1

CN501

VD5V

CN6001

VDD5

CN5812

(7P)

V+15

V-15

Q5805

REG.

IC5808

NJM78M15FA

REG.

IC5806

NJM78M15FA

REG.

IC5809

NJM79M15FA

REG.

IC5807

NJM79M15FA

REG.

V+15

VC15

V-15

VE15

VC15 VE15

V+5

V-5

V+20

V-20

CN5802

(13P)

+10V

11 7

CN5821

(17P)

VC15I

3

VE15I

6

CN5823

(17P)

V+5.6V

16

V-5.6V

15

CN5806

(11P)

A+20V

6

A-20V

11

A

CN2705

(13P)

B

CN2002

(17P)

3 6

D

CN2301

(17P)

16 15

H

CN2307

(11P)

6 1

FM/AM TUNER MODULE

+10V

A/V I/O ASSY

VC15

VE15

S-VIDEO ASSY

CN2306

V+5S

V-5S

(8P)

V+5V

7

V-5V

8

MIC AMP ASSY

A+20V

A-20V

C

CN2102

(12P)

CN3301

(12P)

CN3302

(8P)

7 8

CN3304

(18P)

CN2852

(18P)

COMPOSITE ASSY

V+5V

V-5V

109

V-5V

V+5V

109

CN3303

1817

G

1817

V+5Z

V-5Z

(10P)

V+5V

7

V-5V

8

VIDEO CONNECT ASSY

E

COMPONENT

F

ASSY

CN2502

(10P)

V+5C

7 8

V-5C

V-CONVERT ASSY

C

D

E

VC15

VE15

V+5D

CN5816

(30P)

CN3403

(30P)

VC15I

18

VE15I

19

VC5A

20

VC5D

21

VC15I 18 19 20 21

VE15I

VC5A

VC5D

L3401

L3402

REG.

VC5AA

VC3A

IC3402

PQ3DZ13

L3421

L3422

L

ANALOG IN & A/D

VC5F

ASSY

VC3F

VSX-49TXi

56

F

7

8

25

1234

A

B

C

¶ 1394 MODULE Block

1394 MODULE

AO

JA1

JA2

RS232C

CN103

(7P)

25,26 29,30

33,34 36,37

IC202

AYW7022

4M

Flash ROM

X201

24.576MHz

53 52

IC201

TSB43CA43GGW

iceLynx-Micro

(Mercury)

BU2370FV

VCO (PLL)

IC101

PD5787A

HOST CPU

IC203

174

167

158,159

163-166

170

60958

SACD_DA

SACD_D0-D5

MCLK

X301

33.8688MHz

40 18

74

76

77-80 83,84

XC2S50-5TQ144C

62

Rate Controller

IC302

K4S641632F-TC75

64M SDRAM

IC301

(FPGA)

PE9014A

PROM

X302

36.864MHz

41 15

IC306

IC403

TC7SZ126FU

60958

23 2 4

M PCM DATA A

31

M PCM DATA 1

29

M PCM DATA 2

30

M PCM DATA 0

28

SACD_D0-D5

10-13 19,20

38

MCLK

IN A OUT Y

63-68

IC401

SM5816AF

DSD Converter

(SACD → LPCM)

(SB)

(C)

(S)

(F)

(C)

46

(S)

45

(F)

47

52

D

1

CLKC

XTAL

3

IN

IC405

CY22381FC

512fs PLL

E

F

26

1234

VSX-49TXi

5678

A

B

(SB)

(C)

(S)

(F)

CN401

(22P)

1394_SPDIF

21

TC74VHC257FT

Multiplexer

(SB)

14 13

(C)

(S) (S)

(F)

5 6

11 10

2 3

TC74VHC257FT

Multiplexer

14 13

(F)

: Audio Signal Route (F)

(C)

: Audio Signal Route (C)

(S)

: Audio Signal Route (S)

(SB)

: Audio Signal Route (SB)

IC405

4A 4B

2A 2B

3A 3B

1A 1B

IC405

4A 4B

(SB)

12

4Y

(C)

7

2Y

(S)

9

3Y

(F)

4

1Y

12

4Y

20

18

19

17

9

IE_BDT

IE_CDT

IE_SDT

IE_FDT

IE_MCK

CN705

1/5

S

C

D

E

56

VSX-49TXi

F

7

8

27

1234

3.2 OVERALL WIRING DIAGRAM

A

FRONT A/V

J

ASSY (AWX8189)

I

MIC & OPT ASSY (AWX7875)

O

MULTI JOG ASSY (AWX7869)

AF

STANDBY ASSY (AWX7901)

M

DISPLAY ASSY (AWX8140)

B

C

MIC AMP ASSY

H

(AWX7872)

P

VOL ASSY (AWX7870)

DSP DIODE ASSY (AWX7958)

POWER AMP (R) ASSY (AWX7883)

W

POWER AMP (C) ASSY (AWX7884)

LOCAL SUPPLY

ASSY

U 1/2, U 2/2

U

DAC 10 ASSY

(AWK7725)

(AWX7887)

AA

POSISTER (R) ASSY (AWX7846)

AH

AI

D

S 1/5- S 5/5

1394 MODULE

(AXQ7243)

X V

Z

POWER AMP (G) ASSY (AWX7886)

AG

POSISTER (L)

ASSY (AWX7844)

1/2, AO 2/2

S

DSP ASSY (AWK7762)

E

AO

G

DSP3 ASSY

(AWK7727)

T

Q 1/3- Q 3/3

POWER AMP (BR) ASSY

Y

(AWX7885)

VIDEO CONNECT ASSY (AWX7876)

L 1/3- L 3/3

Q

VR & PRE OUT ASSY

(AWX7888)

L

ANALOG IN & A/D ASSY

F

28

1234

(AWX7878)

VSX-49TXi

A/V I/O ASSY

(AWX7938)BCOMPOSITE ASSY

(AWX7942)CS-VIDEO ASSY

D

(AWX8159)

F

COMPONENT ASSY

(AWX7953)

5678

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

INPUT SEL

N

ASSY (AWX7868)

FL SUPPLY ASSY

AE

(AWX7871)

AL

FUSE ASSY (AWX7843)

TRANS (B) ASSY

AN

(AWX8057)

POWER TRANSFORMER

AK

DIODE ASSY (AWX7841)

T1

(ATS7320)

A

B

C

POWER AMP (L) ASSY (AWX7882)

AD

SP (A) ASSY (AWX8148)

AB

AC PRIMARY ASSY (AWX7834)

HEADPHONE

K

ASSY (AWX7874)

TRANS (A) ASSY

AM

(AWX7838)

AJ

SP (B) ASSY (AWX8151)

AC

POWER SW ASSY (AWX7840)

D

E

MOTHER ASSY

R

(AWX8142)

V-CONVERT

ASSY

(AWX8160)

A

FM/AM TUNER

MODULE (AXQ7237)

56

VSX-49TXi

FU1 : AEK-306 (12A/125V)

7

AC INLET ASSY : ADX7395

8

F

29

1234

3.3 FM/AM TUNER MODULE

A

FM/AM TUNER MODULE (AXQ7237)

A

(FM)

B

(FM)

(FM) (FM)

C

(FM)

(AM)

D

(AM) (AM)

(AM)

(FM)

(AM)

(FM) (FM)

(AM)

E

F

A

30

1234

VSX-49TXi

5678

(TX)

: AUDIO SIGNAL ROUTE (TUNER)

(AM)

: AM SIGNAL ROUTE

(FM)

: FM SIGNAL ROUTE

A

CN2705

(AM)

(FM)

(AM)

(TX)

B

(TX)(TX)

R

CN5802

C

D

: The power supply is shown with the marked box.

VSX-49TXi

56

E

F

A

7

8

31

1234

3.4 A/V I/O ASSY

A

MR MUET ON : +4.3V OFF : -20V

(MR)

MR

Volume

B

(DVD)

C

(REC)

(DVD)

(REC)

(MIC)

(DVD) (DVD)

(FV)

(MIC)

(DVD)

(F)

A/V Function

Selector

(MIC)

(FV)

D

(REC)

E

(REC)

F

32

B

VSX-49TXi

1234

(MR)

5678

A

A/V I/O ASSY (AWX7938)

B

R

(MR)

(MIC)

CN5821

B

(FV)

(F)

(DVD)

A/V MR Function

(REC)

(MIC)

Selector

(MIC)

(DVD)

(MR)

(REC)

(MIC)

(FV)(FV)

(F)

(REC)

(MR)

(F)

(MR)

(REC)

(F)

(FV)

C

(REC)

(MR)

(F)

D

(DVD)

(REC)

: AUDIO SIGNAL ROUTE (DVD)

(REC)

: AUDIO SIGNAL ROUTE (REC)

(MR)

: AUDIO SIGNAL ROUTE (MR)

(MIC)

: AUDIO SIGNAL ROUTE (MIC)

(F)

: AUDIO SIGNAL ROUTE (F)

(FV)

: AUDIO SIGNAL ROUTE (FV)

R

CN5820

E

56

VSX-49TXi

F

B

7

8

33

1234

3.5 COMPOSITE ASSY

A

(DVD)

B

C

COMPOSITE ASSY (AWX7942)

C

(DVD)

Video

Function

Selector

(Composite)

(DVD)

I/O Selector

(Composite)

Video MR

Function Selector

(Composite)

D

E

REC OUT Selector

(Composite)

Clamp

F

C

34

1234

VSX-49TXi

5678

(OSD)

OSD Input-Selector

(OSD)

6dB AMP.

(DVD)

: VIDEO SIGNAL ROUTE (DVD) : VIDEO SIGNAL ROUTE

(OSD)

: VIDEO SIGNAL ROUTE (OSD)

A

B

C

OSD

(OSD)

Port Expander

(OSD)

CN3301

D

G

E

: The power supply is shown with the marked box.

CN5822

R

56

VSX-49TXi

F

C

7

8

35

1234

3.6 S-VIDEO ASSY

A

(Y)

(C)

B

C

(Y)

Video

Function

Selector

(Y)

(C)

Video

Function

Selector

(C)

(Y)

(C)

Port

Expander

(Y)

(Y) (C)

(Y)

(C)

(Y)

(C)

(Y)

D

(Y)

(C)

(Y)

E

(C)

(Y)

REC OUT

Selector (Y)

(C)

Sync. Sep.

REC OUT

Selector (C)

(C)

(Y)

(C)

(Y)

(C)

(Y)

(C)

F

D

36

1234

VSX-49TXi

5678

(C)

(Y)

S/OSD SW

(Y)

(C)

(Y)

(C)

S/OSD SW

(C)

(OSD)

(C)

(Y)

(C)

S-VIDEO ASSY (AWX8159)

D

6dB AMP.

(Y)

(C)

: Y SIGNAL ROUTE

(C)

: C SIGNAL ROUTE

(OSD)

: VIDEO SIGNAL ROUTE (OSD)

(Y)

(C)

(Y)

(C)

A

B

C

(C)

(C) (C)

(C)

DC SW

(Y)

(C)

(OSD)

G

CN3302

E

(Y)

(C)

D

(C)

CN5823

R

: The power supply is shown with the marked box.

56

VSX-49TXi

F

D

7

8

37

1234

3.7 V-CONVERT ASSY

A

(Y)

MN1093NF

Clock Gen.

(Y)

Y/C Sep.

(C)

B

C

(Y)

(C)

(OSD)

0dB Buffer

(Y)

(CY)

(Cb)

(Cr)

CN3304

G

(Cr)

(Cb)

(CY)

(Y)

(CY)

CHROMA Decoder

(C)

(Y)

D

(C)

0dB Buffer

(C)

(Cb)

(C)

(Y)

E

F

E

38

1234

VSX-49TXi

5678

(Y)

LPF (CHROMA)

(C)

(CY)

(Cb)

(C)

0dB Buffer

(Cb)

(Y)

(C)

(Y)

(Y) (Y)

(CY)

(C)

(Y)

OSD SW (Y)

(Y)

(OSD)

(Y)

(OSD)

(C)

OSD SW (C)

(C)

V-CONVERT ASSY (AWX8160)

E

Y 0dB Buffer

(Y)

(C)

C 0dB Buffer

(Y)

(C)

Y Invert Buffer

(Y)

Y/C MIX

A

(Y)

B

C

(Cr)

+9V

0dB Buffer

(Cr)

(CY)

(Cb)

(CY)

Port

Expander

: VIDEO SIGNAL ROUTE

(Y)

: Y SIGNAL ROUTE

(C)

: C SIGNAL ROUTE

(CY)

: Y SIGNAL ROUTE (COMPONENT)

(Cb)

: Cb SIGNAL ROUTE (COMPONENT)

(Cr)

: Cr SIGNAL ROUTE (COMPONENT)

(OSD)

: VIDEO SIGNAL ROUTE (OSD)

D

E

: The power supply is shown with the marked box.

CN5825

R

56

VSX-49TXi

F

E

7

8

39

1234

3.8 COMPONENT ASSY

A

(CY)

(Cb)

(CY)

(Cb)

(Cr)

(Cb)

(Cr)

(Cb)

(Cr)

B

Video

Function

Selector

(CY)

(Cb)

(CY)

(Cr)

C

(Cr)

Video Function

Selector

(Cb, Cr)

(Cr)

(Cb)

D

Port Expander

R

CN5824

E

F

: The power supply is shown with the marked box.

40

F

VSX-49TXi

1234

Pioneer VSX-49-TXI Schematic

Specifications and Main Features

Frequently Asked Questions

User Manual