Sony Wega KE-P37XS1, Service Manual

- 32 -

4-1.  BLOCK DIAGRAMS (2)

4-2.  CIRCUIT BOARD LOCATION

4-3.  SCHEMATIC DIAGRAMS AND 
         PRINTED WIRING BOARDS

Note :
•

All capacitors are in µF unless otherwise noted.

•

pF : µµF 50WV or less are not indicated except for 

electrolytic types.

•

Indication of resistance, which does not have one for 

rating electrical power, is as follows.

Pitch : 5mm
Electrical power rating : 1/4W

•

Chip resistors are 1/10W

•

All resistors are in ohms.

k = 1000 ohms, M = 1000,000 ohms

•

: nonflammable resistor.

•

: fusible resistor.

•

: internal component.

•

: panel designation or adjustment for repair.

•

All variable and adjustable resistors have 

characteristic curve B, unless otherwise noted.

•

All voltages are in Volts.

•

Readings are taken with a 10Mohm digital mutimeter.

•

Readings are taken with a color bar input signal.

•

Voltage variations may be noted due to normal production

tolerences.

•

:

B

+

b

u

s

.

•

: B - bus.

•

: RF signal path.

•

: earth - ground.

•

: earth - chassis.

Reference Information

RESISTOR

RN

: METAL FILM

RC

: SOLID

FPRD

: NON FLAMMABLE CARBON

FUSE

: NON FLAMMABLE FUSIBLE

RS

: NON FLAMMABLE METAL OXIDE

RB

: NON FLAMMABLE CEMENT

RW

: NON FLAMMABLE WIREWOUND

: ADJUSTMENT RESISTOR

COIL

LF-8L

: MICRO INDUCTOR

CAPACITOR

TA

: TANTALUM

PS

: STYROL

PP

: POLYPROPYLENE

PT

: MYLAR

MPS

: METALIZED POLYESTER

MPP

: METALIZED POLYPROPYLENE

ALB

: BIPOLAR

ALT

: HIGH TEMPERATURE

ALR

: HIGH RIPPLE

Les composants identifiés par une trame et
par une marque      sont d'une importance
critique pour la sécurité. Ne les remplacer
que par des pièces de numéro spécifié.
specified.

Note :

The components identified by shading
and marked      are critical for safety.
Replace only with the part numbers 
specified in the parts list.

Note :

CVM Board

A Board

S1 Board

VM

C

H

D1

A

J

A2

N

D

A1

D2

C

A

U1

H1

H2

H3

APS202

MS2A

A3

A4

H4

HMP

U1 2/2 (      )

INPUT TERMINAL,

AV  SW,  AUDIO

SEL Y OUT

27

23

25

26

IC6004

YUV  SWITCH

R OUT

TO  A3 BOARD

1

2

3

6

8

19

20

1

2

3

6

8

10

15

19

20

1

2

3

6

8

19

20

10

B1

A3

B3

A5

B5

A7

A9

A11

B12

A1

B29

B13

B15

B16

B17

B18

B19

B20

A21

B21

B22

A26

B27

A28

A29

4

3

2

J6001 (2/2)

(SCART  1)

J6000

(SCART  3)

J6003

(SCART  2)

R IN

L IN

L OUT

MODE

V OUT

V IN

R OUT

R IN

L IN

L OUT

MODE

AVL

C IN

R OUT

R IN

L IN

L OUT

MODE

V OUT

V IN

V OUT

Y/V IN

AVL

V OUT 2

L OUT

L OUT 2

R OUT 2

V OUT 3

L OUT 3

R OUT 3

CVBS-TUN

L-TUN

R-TUN

V IN 3

Y IN 3

C IN 3

L IN 3

R IN 3

MODE 3

AV LINK_SC2

AV LINK_SC3

V IN 1

MODE 1

L IN 1

R IN 1

U SEL

CVBS MAIN

Y SEL

V SEL

FSW SEL

H SEL

V SEL

Y MAIN

C MAIN

CB SEL

Y SEL

CR SEL

FSW  OUT

H SEL

V SEL

RESET CD

UP-SW

DSP-RDY

SO-DSP

SI-DSP

SCLK

RQ

RESET DSP

CS

RESET SYS

RS232

SIRCS

+3.3V

MS-L

SDA50

SCL50

MS-R

CS

SDA

SCL

CN6002

CN6015

SERVICE

+3.3V
STBY

S6201

BUFFER

Q6020

SEL CB OUT

SEL CR OUT

BUFFER

Q6018

BUFFER

Q6019

Y SEL

CB SEL

CR SEL

22

V SEL

H SEL

IC6005

EXT CLAMP

1

4

2

17

20

30

31

SCL

SDA

X6003

41

42

43

7

8

9

4

YUV CR

YUV CB

YUV Y

R

15

J6006

J6001 1/2

11

16

7

R1

B1

G1

CVBS 2

RED

BLUE

GREEN

1

2

3

10

15

11

16

7

R2

B2

G2

CVBS 1

RED

BLUE

GREEN

BLK2

BLK1

J6003 1/2

IC6006

AV  SWITCH

36

30

22

23

25

26

29

31

20

19

18

17

16

15

13

11

9

8

4

6

2

1

V IN 1

L IN 1

R IN 1

MODE 1

V IN 2

L IN 2

R IN 2

MODE 2

V IN 3

L IN 3

Y IN 3

MODE 3

DC OUT

YUV Y

Y CVBS-F

LIN-F

R IN-F

C-F

YUV-L

YUV-R

R IN 3

C IN 3

58

Y OUT 1

C OUT 1

BUFFER

Q6030

56

53

63

BUFFER

Q6025
Q6043

BUFFER

Q6022
Q6028

SWITCH

Q6034

AMP

Q6036

64

62

54

52

59

IC6700

OP AMP

5

3

1

61

L DIG

R DIG

41

44

AMP

Q6032

AMP

Q6023

V OUT 2

7

45

43

40

38

V OUT 3

L TUN

R TUN

V OUT 2

V/Y OUT 3

R OUT 3

L OUT 3

R OUT 2

L OUT 2

V OUT 1

TV-R

TV-L

R-MAIN

L-MAIN

TUN-MAIN

Y MAIN

C MAIN

CVBS MAIN

IC6007

MULTIPLEXER/

DEMULTIPLEXER

2

15

13

12

10

1

11

FSW-OUT

AV LINK_3

AV LINK_2

FSW SELECT

R IN 2

L IN 2

MODE 2

V IN 2

AVL SEL

AMP

Q6037

FSW SCART 2

2

3

1

FSW SCART 1

AMP

Q6035

14

15

5

9

10

SDA

SCL

RESET-CD

HP-SW

YC-PORT

6

BUFFER

Q6073

BUFFER

Q6074

MUTE L1

IC6032

PORT  EXPANDER

15

5

11

13

1

3

7

9

YUV-L

YUV-R

+3.3V

HP-SW

YC PORT

HP_DL

HP_DR

Y CVBS-F

C-F

L IN-F

R IN-F

SW-OUT

LINE L

LINE R

J6004

SWITCH

Q6021

BUFFER

Q6038

2

5

6

3

+3.3V

1

IC6014

NAND

7

7

IC6015

INVERTER

+3.3V

AMP

Q6041
Q6040
Q6039

3

7

1

5

LINE L5

BLK1

BLK2

MUTE L1

MUTE AMP

SW-OUT

LINE-L

LINE-R

IC6701

OP AMP

LINE R

LINE L

LINE R5

AV MOUSE

J6501

J6005

CN6003

TO  H2 BOARD

CN9601

LINE R/R5

TO (A)

SHEET 1

TO (B)

SHEET 1

TO (E)

SHEET 1

TO (C)

SHEET 1

TO (D)

SHEET 1

TO (F)

SHEET 1

CLAMP SW