Sony klv 20sr3 schematic

WA1

RM-Y1108

SERVICE MANUAL

MODEL

KLV-20SR3

COMMANDER DEST

RM-Y1108 AEP

MODEL

WA1

COMMANDER DEST

CHASSIS

KLV-20SR3

- 1 -

RM-Y1108

FLAT PANEL COLOR TV

4-1. BLOCK DIA GRAMS (1)

CN3703

H3 ( )

SCART 2

24

RF-SW

22

SW MONITOR

20

C INPUT

18

Y INPUT

Y/C SWITCH

5

VIDEO SWITCH

13

SC2-OUT-R-H3

9

11

2

1

MODE 2

3

TO A BOARD

CN3621

4

15

10

9

11

13

12

1

Y FRO NT

BUFFER

Q3709

3

C FRONT

5

C SCART

14

SW OUT

2

Y SCART

BUFFER

Q3708

BUFFER

Q3701

BUFFER

Q3702

BUFFER

Q3707

Y/CVBS FRONT

15

BUFFER

Q2700

BUFFER

Q2701

SC2-IN-R-H3

SC2-OUT-L-H3

SC2-IN-L-H3

AV LINK

C FRONT

C IN

VIDEO OUT

VIDEO IN

RIGHT OUT

RIGHT IN

LEFT OUT

LEFT IN

MODE

AV LINK

CN3702

CN3700

TO H2 BOARD

CN9300

IC3701

ANALOG

MULTIPLEXER/

DE-MULTIPLEXER

1

3

6

1 STBY 5V

TO A BOARD

CN0041

CN9050

LED 2

OUT

IC9050

IR RECEIVER (SIRCS)

H5 ( )

IR RECEIVER

& LED'S

VCC

2

SIRCS

5

LED 1

5V STANDBY

POWER

STANDBY

CN9000

TO B BOARD

CN0101

CN9200

H-PLUGGED

1

3

SWITCH
S9000, S9001
S9002, S9006

SWITCH
S9003, S9004,

S9005

TO A BOARD

CN2211

HP-L-OUT

HP-R-OUT

FRONT IN-R

FRONT IN-L

9

5

7

3

1

J9201

HEADPHONES

CN6003

AC IN

1

AC IN

3

H1 ( )

F6000

L6000

4A

2

4

1

3

CONTROL
BUTTONS

2

4

L6007

1

3

BRIDGE

RECTIFIER

D6000

IC6000

MAIN BRIDGE RECTIFIER

BUFFER

1

Q6000

V SENSE

15

VC1

Q6001
Q6002

IC6100

STANDBY CONTROLLER/DRIVER

5

3

7

8

T6100

4

5

1

2

VGH

VGL

OCP

TO H3 BOARD

CN3702

CN9300

1

3

Y/CVBS-FRONT

C FRONT

J9300

V

L

R

H2

BACKLIGHT

POWER-AV

STBY 5V

21

43

CN6005

2

TO A BOARD

CN6201

CN6001

11

TO A BOARD

CN6204

CN6101

2

TO B BOARD

CN6301

FRONT INPUT,

HP OUTPUT

( )

T6000

12

2

F/B

VS

9

8

SWITCH

Q6003

23

22

20

SWITCH

Q6004

16

PHOTO-

COUPLER

PH6000

2

4

REGULATOR

1 3

IC6101

PH6001
PHOTO-

COUPLER

BUFFER AMP

Q6005, Q6010,

Q6009

PHOTO-

COUPLER

PH6100

11

10

9

2

8

4

7

T6001

12

2

11

10

4

9

8

7

D6010

D6011

D6013

IC6001

REGULATOR

1 3

+16.5V

SWITCH

BUFFER

Q6006

Q6007
Q6008

POWER SUPPLY

G ( )

- 25 -

4-1. BLOCK DIA GRAMS (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 + bus.

• : 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 INDUCTO R

CAPACITOR TA

: TANTALUM

PS

: STYROL

PP

: POLYPROPYLENE

PT

: MYLAR

MPS

: METALIZED POLYESTER

MPP

: METALIZED POLYPR OPYLENE

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

H1

B

H2

H5

G

A

H3

TUNER, AUDIO,

CHROMA DECODER,

A ( )

TO H3 BOARD

CN3703

CN3621

CN3602

SCART

15

17

13

11

4

21

23

24

8

6

25

2

SC2-IN-L

SC2-IN-R

SC2-OUT-R

SC2-OUT-L

SW MONITOR

Y/C SWITCH

VIDEO SWITCH

MODE 2

Y INPUT

C INPUT

AV LINK

RF SW

RIGHT OUT

RIGHT IN

LEFT OUT

LEFT IN

VIDEO OUT

BLUE IN

MODE

GREEN IN

RED IN

BLANKING

VIDEO IN

BUFFER

Q3600

BUFFER

Q2600

BUFFER

Q2601

LUMINANCE

CHROMINANCE

AMPLIFIER

Q1300,
Q1301

SC1-OUT-R

SC1-IN-R

SC1-OUT-L

SC1-IN-L

B SCART 1

MODE 1

G SCART 1

R SCART 1

FB SCART 1

CVBS AV1

TO G BOARD

CN6005

TO G BOARD

CN6001

TU1100

CN6201

CN6204

VIDEO

AGC

SCL

SDA

FM/AM

QSS

11

1

2

3

SWITCH

Q0002

BACKLIGHT

DIMMER

POWER AV

AGC DEFEAT

Q1100

PANEL DET

SWITCH &

BUFFER

Q6200, Q6203

+14.3V

PORT EXPANDER

19

P6

2

SCL

4

SDA

16

P4

17

P5

TO H2 BOARD

CN9200

CN2211

1

3

5

7

9

FRONT-IN-L

FRONT-IN-R

HP-L-OUT

HP-R-OUT

HP PLUGGED

FRONT-IN-R

FRONT-IN-L

SC2-OUT-L

SC2-OUT-R

SC1-OUT-L

SC1-OUT-R

BUFFER AMP

Q2100, Q2101

IC2300

HEADPHONE AMP

3

R.IN

1

L.IN

BUFFER

Q2301

SC1-IN-R

SC1-IN-L

SC2-IN-R

SC2-IN-L

FM/AM

QSS

7

6

SOUND PROCESSOR

54

IN-2-R

53

IN-2-L

51

IN-3-R

50

IN-3-L

48

IN-4-R

47

IN-4-L

34

OUT-2-L

33

OUT-2-R

37

OUT-1-L

36

OUT-1-R

60

MONO IN(AM)

67

IF IN 1

24

HP-R

25

HP-L

77

DIGITAL CONTROL OUT 1

AMPLIFIER

Q3806

SUB VIDEO PROCESSOR

Y FRO NT

44

CVBS2/Y2-IN

43

C2-IN

3

CVBS OUT

CVBS RF

1

IC1200

TV ID

6

COINCIDENCE

CIRCUIT

IC0030

BUFFER

Q1200

C FRONT

P0

P2

P3

P1

10

12

14

11

IC6202

REGULATOR

2

1

IC2000

POWER ON

RESET

XTAL IN

XTAL OUT

SPEAKER OUT R

SPEAKER OUT L

BUFFER

Q2300

SDA

SCL

3

+8V

21

3

2

X2000

71

72

27

28

IC3801

R SCART 1

G SCART 1

B SCART 1

FB SCART 1

CVBS AV1

Y OUT

AMPLIFIER

Q3808

H5

CB-OUT

AMPLIFIER

Q3809

CR-OUT

SCL

SDA

IC3811

SYNC ADDER

2 4

AMPLIFIER

Q3807

BUFFER

Q0001

CVBS3/Y2-IN

4

R1-IN

G1-IN

B1-IN

YS3

FB-SCART 1

AMPLIFIER

Q1201

27

26

25

15

41

21

9

22

23

13

14

SCL

SDA

Q2200
Q2202
Q2204

IC0001

PORT EXPANDER

2

SCL

4

SDA

14

P3

16

P4

AMPLIFIER

Q2000

BUFFER

Q2001

BUFFER

Q2002

SWITCH

Q2203

10

P0

Y/C SWITCH

11

P1

VIDEO SWITCH

12

P2

AUDIO POWER AMP

2

4

8

11

AUDIO LINE BUFFER

3

5

IC2500

OUT 2

IN2+

OUT 1

IN1+

MUTE TC

MUTE

IC2400

MUTE CIRCUIT

Q2400, Q2401
Q2405, Q2406

AMPLIFIER

Q2402

12

SCART 1

CN0042

2

SCL

3

SDA

CS

CS

CVBS MONITOR524

Y SYNC 2 9

CR

SCL-5

SDA-5

MODE 2

LUMINANCE

CHROMINANCE

AV LINK

IC0002

DIMMER LPF

1

BUFFER

7

L

7

R

1

Q0047

BUFFER

Q0046

3

POWER AV

DIMMER

LED 1 11

SIRCS

SIRCS

LED 1

LED 2

+5V STBY

SP R OUT

SP L OUT

4

CN0043

8MODE 1

20CB

21

12

14

9

28

25

1

10

4

3

CN0041

2

5

6

1

CN2500

1

3

J2400

L

R

SERVICE

TO B BOARD

TO H5 BOARD

TO SPEAKERS

AUDIO OUT

CN3000

CN9050

- 26 -

ABCDE F

G

HIJKLMN

O

1

2

C2036

3

CN9200

0.0022

C2037

0.0022

TP1

100

4

100

R2430

R2031
100K

0

5

R2431

HEADPHONE

AMPLIFIER

4.7K

6

470

7

8

4.7K

0.0022
50V

0.47

0.47

+5VSTBY

+5VSTBY

Q2205

MSD601-RST1

+5VSTBY

R2209

10K

R2210

100

3.3k

MSD601-RST1

A(1/3) Board Waveform

0

TP1

AUDIO LINE

BUFFER

100ns/div

RB053L

TO SPEAKERS

10

11

A

1/3 TUNER, AUDIO, CHROMA DECODER, SCART 1

9

3.0Vp-p (H)

COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL

~ A Board Schematic Diagram [ Tuner, Audio, Chroma Decoder, Scart 1 ] Page 1/3 ~

- 27 -

ABCDE F

G

HIJKLMN

O

1

2

R0040

3

CN6005

+

0

4

5

CN6001

6

R6206

REGULATOR

10k

7

220K

CN6300

REGULATOR

8

RD5.6SB-T1

A

XX

2/3

9

COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL

10

11

~ A Board Schematic Diagram [ Tuner, Audio, Chroma Decoder, Scart 1 ] Page 2/3 ~

- 28 -

ABCDE F

G

HIJKLMN

O

1

C2604
470PF

2

3

C2605

470PF

xx

4

5

220

220

TP5

TP3
TP2

R3822

C3801

1K

0.01

TP1

Q3801

MSB709-RT1

1.5k

R3626

150

150

SYNC ADDER

SW_MONITOR

C3802

L3811
10UH

16V

47

TP4

47

XX

CN9050

SERVICE

CN3000

CONTROL AMP

6

A

3/3

7

A(3/3) Board Waveforms

8

CN3703

9

TP1 TP2 TP3

1Vp-p (H) 700mVp-p (H)

(10us/div)

650mVp-p (H) 650mVp-p (H) 200mVp-p (H)

(20us/div) (10us/div)

TP4 TP5

(20us/div)

(5ms/div)

10

11

COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL

~ A Board Schematic Diagram [ Tuner, Audio, Chroma Decoder, Scart 1 ] Page 3/3 ~

- 29 -

ABCDE F

G

HIJKLMN

O

1

G..-KLV-20SR3

G POWER SUPPLY

C6038

XX

2

D6014
M1FM3

PS6001

1.6A

C6033

0.1

S

Q6006

SI2301DS-T1

L6005

R6045

22k

10uH

L6004
10uH

L6006
10uH

R6047

100k

Q6007

MSD601-RT1

C6034

XX

R6048

R6049

10k

MSD601-RT1

Q6008

XX

R6051

R6050

10k

47k

F6001

XX

C6039

XX

C6040

XX

R6052

47k

1/10W

C6035

R6053

10k

1/10W

XX

D6010

FCH10A10

12

1

11

R6006

0.1

1/2W

RF

3

C6002

CN6004

XX

1

4

PFC1
PFC2

2

R6054

3.3

10W

RB

4700p
250V

D6000

C6006

4700p
250V

C6007

220

450V

F

R6004

22k

1/10W

R6005

10k

1/10W

Q6000

MSD601-RST1

C6009

0.01
25V

D6001

MM3Z15VT1

R6007

39k
1/10W
RN-CP

C6011

4.7

50V

C6012

47

25V

R6009

110

1/10W

D4SB60L-F

F

R6008

1/10W
RN-CP

R6013

R6012

510k

510k

1/10W

1/10W

R6014

510k

1/10W

39k

R6015

510k

1/10W

C6015

0.01
R6016

25V

XX

C6013

C6014
1000p

XX

100V

PP

R6010

R6011

13k

1/10W

C6016

C6017

XX

C6010
1000p

50V

XX

10

50V

IC6000

MCZ3001UB

MAIN RECTIFIER

DRIVER

1

VD

Vsense

234

F/B
Ct
NC

567

Rt
GND

VGH

VS

GND

8

VB

GND

910

GND
GND
GND
Timer

VGL

NC

14131211

SS

NC

15 16

Vc1

PGND

OCP

Vc2

R6021

160

1/10W

24 212223

1920

18 17

MM3Z15VT1

MM3Z15VT1

D6004

D6003

C6018

0.01
25V

R6023

10
1/4W
FPRD

D6006

MM3Z15VT1

C6019

R6024

0.1
50V

FPRD

D6005

UF4005PKG23

C6020

47
25V

MM3Z15VT1

1/4W

10

D6007

Q6003

2SK2842-LB142

R6025

10k

1/10W

Q6004

2SK2842-LB142

R6026

10k

1/10W

C6021

100p
1kV

SL

R6055

2.2M
1/4W

RN

S

C6022

100p
1kV

SL

S

R6056

2.2M
1/4W

RN

R6030

XX

C6023

0.022
800V
PP

2

10

9

4

8

6

7

T6000

T6001

1

12

11

2

10

4

9

8

6

7

D6008

C6026

XX

L6002

3.3uH

L6003

3.3uH

D6012

FCH10A10

D6011

D10SC6M-4012

XX

D6009XX

L6001

XX

D6013

D10SC6M-4012

JW6000

JW6003 XX

JW6002

JW6001

5

C6028

7.5

C6029

1500

25V

C6030

470
25V

470
25V

C6031

1500

25V

XX

1

2

3

4

5

6

7

8

9

10

1

2

3

4

1

2

3

4

5

6

7

8

9

10

11

CN6002

10P

WHT
+16.5V
+16.5V
+16.5V
+16.5V
GND
GND
GND
PANEL_DET
BACKLIGHT
DIMMER

CN6005

4P
PANEL_DET
BACKLIGHT
DIMMER
GND

CN6001

11P

14.3V_B

14.3V_B
GND
GND

14.3V_A

14.3V_A
GND
GND
+33V
GND
POWER_AV

TO LCD
CN0260

TO A BOARD

CN6201

TO A BOARD

CN6204

5

10

C6005

C6001
1000p

C6004

C6004

0.47
275V

275V

PT

L6007

0.47
PT

L6000

250V

4

4

B

VR6000

FH6000

1

1000p

250V

123

R6035

R6036

1.2k

1/10W

R6034

10k

CHIP

C6050

50V

1

TL1431CZ-AP

R6113

10k

1/10W

R6114

10k
1/10W
RN-CP

XX

R6037

1k

1/10W

IC6001

R6038

1k

1/10W

Q6010

MSB709-RT1

R6057

R6039

CHIP

10k

C6027

0.1
50V

0

R6040

2.2k

1/10W

3

1

2

C6109

1000p
630V

D6104

R6108

CHIP

0

C6107

0.1
16V

R6062

C6110

1000

R6029

1/10W

10V

470

0

PH6100

PC123Y22

R6031

CHIP

Q6005

MSD601-RST1

C6024

1

50V

R6110

1k

IC6101

TL1431CZ-AP

C6025

XX

R6109

470

1/10W

R6111

CHIP

0

R6033

22k

1/10W

R6032

22k

1/10W

Q6009

MSD601-RT1

C6111

0.1

16V

3

2

PH6001

PC123Y22

1

R6112

1/10W

33k

0

B

C6108

XX

C6003

0.22
275V

PT

123

R6003

1M

1/2W

F6000

250V

4A

L6100

100uH

C6100

0.22
400V

PT

R6100

1/4W

FPRD

4.7

C6101

22p
2kV

D6002

MMDL914T1

MSD601-RST1

R6017

100k

1/10W

JW6100

5

R6101

Q6001

MSB709-RT1

R6018

10k

1/10W

Q6002

8765

FB6100

XX

10
1W

R6019

10k

1/10W

R6020

1/10W

IC6100

STR-A6169

C6102

4.7
50V

22k

D6100

UDZSTE-4.7B

C6103

10
50V

4321

R6022

22k

1/10W

D6101

MMDL914T1

C6104

1000p

50V

C6106
2200p

1kV

R

ERA22-08

D6102

10ERB20-TB3

C6105

47

50V

D6103

R6107

R6106

10
1/4W
FPRD

R6027

PH6000

PC123Y22

100k

1W
RS

1k

1/10W

R6028

0

CHIP

T6100

1

11

2

10

4

9

8

6

R6105

CHIP

M1FL20U-4063

0

R6041

CHIP

R6042

6.2k

1/10W

R6043

1.1k

1/10W

C6032
4700p

0

50V

R6044

1k

1/10W

D6015

UDZSTE-1718B

R6046

4.7k

1/10W

C6037

XX

CN6101

3P

WHT

1

GND
STBY5V
GND

TO B BOARD

CN6301

2

3

R6000

8.2M
1W
RN

6

CN6000

C6000

XX

4700p
250V

CONNECTED TO SECONDARY

1

GND

BY METAL SUPPORT

7

CN6003

3P

WHT

3

AC IN

1

AC IN

8

9

COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL

11

~ G Board Schematic Diagram [ Power Supply ] ~

- 32 -

ABCDE F

TO A BOARD

CN2211

TO H3 BOARD

CN3702

UDZS-9.1B

UDZS-9.1B

DTZ-TT11-6.8B

DTZ-TT11-6.8B

L9204

0

L9205

0

L9206

0

COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL

H2

FRONT INPUT, HP OUTPUT

G

HIJKLMN

O

1

2

~ H1 Board Schematic Diagram [ Control Buttons ] ~

TO B BOARD

CN0101

3

H1.-KLV-20SR3

GND

KEY 1

123

KEY 2

GND

4

CN9000

4P

H1 CONTROL BUTTONS

R9008

0

CHIP

S9006

D9000

UDZS-5.6B

R9000

4.7k

1/10W

S9000

R9001

10k

1/10W

S9001

R9002

22k

1/10W

S9002

R9003

XX

R9004

CHIP

D9001

S9004

R9006

10k

1/10W

S9005

UDZS-5.6B

R9007

0

CHIP

C9000

0.1

25V

R9005

0

4.7k

1/10W

S9003

FB9000

XX

~ H2 Board Schematic Diagram [ Front Input, HP Output ] ~

C9001

0.1

4

25V

5

COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL

6

7

8

9

10

11

- 34 -

ABCDE F

1

2

3

4

5

6

6P

CN9050

+5VSTBY
SIRCS
GND
GND
LED1
LED2

UDZS-5.6B

D9053

1/10W

47

R9051

CHIP

0

R9050

VCC

OUT

GND

RS-20

IC9050

UDZS-5.6B

D9050

SLR-325MCT31

D9051

SLR-325VCT31

D9052

50V

2200p

C9052

10V

22

C9051

25V

0.1

C9053

+5VSTBY

+5VSTBY

6.3V

47

C9050

ST-BYPOWER

H5.-KLV-20SR3

TO A BOARD

CN0041

COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL

H5

IR RECEIVER & LED'S

G

HIJKLMN

O

1

~ H3 Board Schematic Diagram [ Scart 2 ] ~

2

H3 SCART 2

BUFFER

3

4

BUFFER

10

16V

BUFFER

5

CN9300

R3717

150

150

47

33K

47

BUFFER

BUFFER

33K

BUFFER

6

ANALOGUE

MULTIPLEXER/

DEMULTIPLEXER

R3704 0

R3705 0
R3706 0
R3707 0

R3708 0

7

R3710 0

R3711 0
R3713 0
R3714 0
R3715 0

R3716 0

TO A BOARD

CN3621

BUFFER

+

+

8

9

10

11

COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL

~ H5 Board Schematic Diagram [ IR Receiver & LED’s ] ~

- 36 -