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- 1 -

WA1RM-Y1108

SERVICE MANUAL WA1 CHASSISMODEL COMMANDER DEST

KLV-20SR3 RM-Y1108 AEP

MODEL COMMANDER DEST

RM-Y1108

FLAT PANEL COLOR TV

KLV-20SR3

- 25 -

4-1. BLOCK DIAGRAMS (1)

H1 ( )CONTROLBUTTONS

TO B BOARDCN0101

3

1CN9000

SWITCHS9000, S9001S9002, S9006

SWITCHS9003, S9004,

S9005

TO A BOARDCN2211 HEADPHONES

H-PLUGGEDCN9200

CN9300

9

1

3

J9201

J9300

H2( )FRONT INPUT,

HP OUTPUT

5

C FRONT

Y/CVBS-FRONT

3

1TO H3 BOARD

CN3702

V

L

R

43

21

7

HP-L-OUT

HP-R-OUT

FRONT IN-R

FRONT IN-L

CN3703

H3 ( )SCART 2

24 RF-SW

22 SW MONITOR

20 C INPUT

18 Y INPUT

Y/C SWITCH5

VIDEO SWITCH

13 SC2-OUT-R-H3

9

11

2

1

MODE 2

3

TO A BOARDCN3621

4

15

10

9

11

13

121

Y FRONT BUFFERQ3709

3C FRONT

5C SCART

14SW OUT

2Y SCART

BUFFERQ3708

BUFFERQ3701

BUFFERQ3702

BUFFERQ3707

Y/CVBS FRONT

15

BUFFERQ2700

BUFFERQ2701

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 BOARDCN9300

IC3701ANALOG

MULTIPLEXER/DE-MULTIPLEXER

1

3

6

1 STBY 5V

TO A BOARDCN0041

CN9050

LED 2

OUT

IC9050IR RECEIVER (SIRCS)

H5 ( )IR RECEIVER& LED'S

VCC

2 SIRCS

5 LED 1

5V STANDBY

POWERSTANDBY

CN6003

AC IN

AC IN

G ( )POWER SUPPLY

1

3

1

4

L6000

2

3

IC6000MAIN BRIDGE RECTIFIER

1

2

VC1

23

16

T6000

D6010

TO B BOARDCN6301

CN6005BACKLIGHT

+16.5V

1

4

L6007

2

3

F60004A

BRIDGERECTIFIER

D6000

BUFFERQ6000

20

22

SWITCHQ6003

SWITCHQ6004

15OCP

VGL

VS

VGH

F/B PH6001PHOTO-

COUPLER

Q6001Q6002 PHOTO-

COUPLERPH6000

IC6100STANDBY CONTROLLER/DRIVER

5

3

7

8

2

4

8

4

9

1

5

2

T6100

IC6101REGULATOR

1 3 PHOTO-COUPLER

PH6100

BUFFER AMPQ6005, Q6010,

Q6009

4

2

T6001

4

2

D6013

D6011

SWITCHQ6006

BUFFERQ6007Q6008

CN6001

CN6101

2

11

2

TO A BOARDCN6204

TO A BOARDCN6201

POWER-AV

STBY 5V

IC6001REGULATOR

1 3

12

11

109

8

7

12

11

109

8

7

V SENSE

- 26 -

4-1. BLOCK DIAGRAMS (2) 4-2. CIRCUIT BOARD LOCATION

4-3. SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDSNote :• 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 : 5mmElectrical 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 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 etpar une marque sont d'une importancecritique pour la sécurité. Ne les remplacerque par des pièces de numéro spécifié.specified.

Note :

The components identified by shadingand 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

D1A

JA2

N

D

A1D2

C

A

H1

B

H2

H5

G

A

H3

A ( )TUNER, AUDIO,CHROMA DECODER,

SCART 1

CN3621

VIDEO OUT

Y FRONTCN0043

TO B BOARDCN3000

3

SC2-IN-L

SC2-IN-R

BUFFERQ2600

BUFFERQ2601

15

17

13 SC2-OUT-R

SC2-OUT-L

BUFFERQ3600

SC1-OUT-R

SC1-IN-R

SC1-OUT-L

SC1-IN-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

BLUE IN

MODE

GREEN IN

RED IN

BLANKING

VIDEO IN

C FRONT

LUMINANCE

CHROMINANCE

43

44 CVBS2/Y2-IN

C2-IN

CVBS OUT41CVBS3/Y2-IN

15

25

26

27

IC3801SUB VIDEO PROCESSOR

YS3

B1-IN

G1-IN

R1-IN

1

21

9

22

23

13

14

AMPLIFIERQ3808

AMPLIFIERQ3809

2 4

R SCART 1

AMPLIFIERQ3806

G SCART 1

B SCART 1

FB SCART 1

CVBS AV1

CVBS RF

Y OUT

H5

CB-OUT

CR-OUT

SCL

SDA

AMPLIFIERQ3807

IC3811SYNC ADDER

CS

CS

SCL

SDA

CVBS MONITOR

5

24

8MODE 1

Y SYNC 29

20CB

CR

SCL-5

SDA-5

21

12

14

28

25

9

1

MODE 2

AV LINK

LUMINANCE

CHROMINANCE

3

IC0002DIMMER LPF

DIMMER 10

LED 1 11

POWER AV

SIRCS

LED 1

LED 2

+5V STBY

SIRCS

BUFFERQ0047

4

3

2

5

6

1

TO H5 BOARDCN9050

CN0041

CN0042

SERVICE4

3

2

19

IC0030PORT EXPANDER

AGC DEFEATQ1100

2

4

10

14

12

11

BUFFERQ1200

6

IC1200TV ID

AMPLIFIERQ1201

4

COINCIDENCECIRCUIT

AMPLIFIERQ1300,Q1301

SWITCHQ0002

16

17

BUFFERQ0046

P0

P2

P3

P1

P6

SCL

SDA

P5

P4

1

CN3602

TU1100

VIDEO

AGC

SCL

SDA

FM/AM

QSS

BACKLIGHT

CN6201

PANEL DET

DIMMER

2

1

3

CN620411

2

IC6202REGULATOR

1

3

SWITCH &BUFFER

Q6200, Q6203

POWER AV

+14.3V

+8V

2

IC0001PORT EXPANDER

4

10SCL

SDA

BUFFERQ0001

11

12

Y/C SWITCH

VIDEO SWITCH14

16

FB-SCART 1

P0

P3

P4

SCL

SDA

48

50

54

IN-3-R

IN-3-L

IN-4-R72XTAL OUT

71

2

3

21

IC2000SOUND PROCESSOR

XTAL IN

SCL

SDA

POWER ONRESET

67

27

28

24

11

4

21

23

24

8

6

25

2

53

51

47

34

33

37

36

SC2-IN-L

SC1-OUT-R

SC1-OUT-L

SC2-OUT-R

SC2-OUT-L

SC2-IN-R

SC1-IN-R

FRONT-IN-L

SC1-IN-L

FRONT-IN-R

60FM/AM

BUFFER AMPQ2100, Q2101

QSS

25

3

IC2300HEADPHONE AMP

6

7

1

AMPLIFIERQ2000

77

1

HP PLUGGED

HP-R-OUT

HP-L-OUT

FRONT-IN-L

3

5

7

9

CN2211

FRONT-IN-R

IN-2-L

IN-2-R

SPEAKER OUT R

SPEAKER OUT L

IN-4-L

OUT-2-L

OUT-2-R

OUT-1-L

OUT-1-R

MONO IN(AM)

IF IN 1

HP-R

HP-L

DIGITAL CONTROL OUT 1

BUFFERQ2001

BUFFERQ2002

4

2

8

11

12

7

BUFFERQ2301

3

5

7

1

AMPLIFIERQ2402

SWITCHQ2203Q2200

Q2202Q2204

3

1

CN2500

L

R

J2400

TO SPEAKERS

L

R

IC2400AUDIO LINE BUFFER

IC2500AUDIO POWER AMP

OUT 2

OUT 1

SP R OUT

SP L OUTIN2+

IN1+

MUTE TC

MUTE

R.IN

L.IN

TO H2 BOARDCN9200

X2000

MUTE CIRCUITQ2400, Q2401Q2405, Q2406

TO H3 BOARDCN3703

SCARTB SCART 1

MODE 1

G SCART 1

R SCART 1

FB SCART 1

CVBS AV1

TO G BOARDCN6005

TO G BOARDCN6001

P1

P2

BUFFERQ2300

AUDIO OUT

A B C D E F G H I J K L M N

1

2

3

4

5

6

7

8

9

10

11

O

- 27 -

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

CN9200

AUDIO LINEBUFFER

MSD601-RST1

HEADPHONEAMPLIFIER

470

4.7K

4.7K

0.002250V

100

100

0.47

0.47

RB053L

C20360.0022

C20370.0022

R2031100K

+5VSTBY

+5VSTBY

+5VSTBY

Q2205MSD601-RST1

R220910K

R2210100

R24300

R24310

3.3k

COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL

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

TP1

100ns/div

A(1/3) Board Waveform

3.0Vp-p (H)

TP1

TO SPEAKERS

A B C D E F G H I J K L M N

1

2

3

4

5

6

7

8

9

10

11

O

- 28 -

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

CN6005

CN6001

CN6300

+

REGULATOR

REGULATOR

220K

RD5.6SB-T1

R620610k

R00400

XX

COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL

A 2/3

A B C D E F G H I J K L M N

1

2

3

4

5

6

7

8

9

10

11

O

- 29 -

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

xx

CN3703

CN9050

SERVICE

CN3000

SYNC ADDER

XX

CONTROL AMP

C2604470PF

C2605470PF

R3626150

SW_MONITORL381110UH

R38221K

C38010.01

C380247

16V

Q3801MSB709-RT1

220

220

150

1.5k

47

COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL

A 3/3

(5ms/div) (20us/div) (20us/div) (10us/div) (10us/div)

A(3/3) Board Waveforms

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

TP1 TP2 TP3

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

TP4 TP5

TP5

TP1

TP4

TP3TP2

A B C D E F G H I J K L M N

1

2

3

4

5

6

7

8

9

10

11

O

- 32 -

~ G Board Schematic Diagram [ Power Supply ] ~

25V0.01

C6015

XXR6010

XXC601750V

4.7C6011

50V1000pC6010

1/10W110

R6009 25V

C60180.01

50V0.1

C6019

UF4005PKG23D6005

1/4WFPRD

10R6024

1/10W10k

R6026

1/10W10k

R6025

1/4WFPRD

R602310

1/2WRF

0.1R6006

XXC6025

1/10W470

R6029

CHIP0

R6031

1/10W1k

R6037

CHIP0

R6039

CHIP0

R6041

3

1

2

TL1431CZ-APIC6001

1

CN6000XX

GND

275V0.47

C6004

PT

1

1/10W6.2k

R6042

1/10W1.1k

R6043

1/10W1k

R6027

1/10W10k

R6005

25V0.01

C6009

1/10W22k

R6033

1/10W22k

R6032

50V1

C6024

D6007MM3Z15VT1

CHIP0

R6028

1/10W22k

R6004MM3Z15VT1

D6006

100uHL6100

400VPT

0.22C6100

XXC6034

D6000D4SB60L-F

250V4700pC6002

F

1/10W22k

R6022

1/10W22k

R6020

MSD601-RST1Q6002

MMDL914T1D6002

1/10W100kR6017

2421

2223

12

34

56

78

910

1920

1413

1211

1817

1516

MCZ3001UBIC6000

Vsense

F/B

Ct

NC

Rt

GND

GND

GND

GND

GND

GND

Timer

NC

SS

Vc1

OCP Vc2

PGND

NC

VGL

VB

VS

VGH

VD

MSD601-RST1Q6000

MSD601-RST1Q6005

100VPP

1000pC6014

1/10W1k

R6044

1/10W10k

R6019

1/10W10k

R6018

PC123Y22PH6000

PC123Y22PH6001

250V1000p

B

C6005C6001

B

1000p250V

25V1500

C6029

275VPT

0.22C6003

1/2W1M

R6003

S

2SK2842-LB142Q6003

S

2SK2842-LB142Q6004

D6003MM3Z15VT1

D6004MM3Z15VT1

MM3Z15VT1D6001

25V47

C6012

50V10C6016

MSB709-RT1Q6001

XXR6016

1/10W510k

R6013

1/10W510k

R6015

R6012510k

1/10W

1/10W510kR6014

1/10W13k

R6011

1.2kR6035

1/10WXX

R6036

50V10

C6103

XXC6108

16V0.1

C6111

10V1000C6110

PC123Y22PH6100

1/10W33k

R6112

1kV2200p

R

C6106

CHIP0

R6108

3

1

2

TL1431CZ-APIC6101

50V1000pC6104 CHIP

0R6111

1/4WFPRD

10R6106

R6107

1WRS

100k

CHIP0

R6105

1kR6110

630V1000pC6109

1/10W470

R6109UD

ZS

TE

-4.7

B

D61

00

10ERB20-TB3D6102

M1FL20U-4063D6104

ERA22-08D6103

16V0.1

C6107

8 7 6 5

4321

STR-A6169IC6100

MMDL914T1D6101

50V47

C6105

50V4.7

C6102

1kV100p

SL

C6021

1kV100p

SL

C6022

3.3uHL6002

3.3uHL6003

S

SI2301DS-T1Q6006

M1FM3D6014

22kR6045

100kR6047

MSD601-RT1Q6008

1/10W47k

R6052

FCH10A10 D6010

FCH10A10 D6012

0.1C6033

C6035XX

CHIP10k

R6034

MSD601-RT1Q6009

Q6010MSB709-RT1

1/10W1k

R6038

10kR6057

1C6050

UDZSTE-1718BD6015

1/10W4.7k

R6046

10uHL6004

10uHL6006

10uHL6005

MSD601-RT1Q6007 10k

R604947k

R605010k

R6051

XXR6048

1/10W10k

R6053

25V1500

C6031

25V470

C6028 25V470

C6030

XXC6013

XXC6038

XXC6039

XXC6040

XXC6037

FB6100XX5

JW6100

1/10W10k

R6113

1/10WRN-CP

10kR6114

F60004A

250V

VR6000

250V4700pC6000

D6008XX

D6009XX

XXC6026

XXL6001

FH6000

1

2

3

4

L6000

1

2

3

4

L6007

F6001XX

5JW6001

JW6003 XX

D10SC6M-4012D6011

D10SC6M-4012D6013

450V220

C6007

C60230.022800VPP

7.5JW6000

JW6002 XX

1

4

6

9

10

11

8

2

T6100

1

2

3

WHT3P

CN6101

GND

STBY5V

GND

1

2

3

4

5

6

7

8

9

10

11

CN600111P

14.3V_B

14.3V_B

GND

GND

14.3V_A

14.3V_A

GND

GND

+33V

GND

POWER_AV

1

2

3

4

5

6

7

8

9

10

WHT10P

CN6002

+16.5V

+16.5V

+16.5V

+16.5V

GND

GND

GND

PANEL_DET

BACKLIGHT

DIMMER

1

2

3

4

4P

PANEL_DET

BACKLIGHT

DIMMER

GND

1/4WFPRD

4.7R6100

2kV22p

C6101

1.6APS6001

10WRB

R60543.3

1

3

3PCN6003

WHT

1

4

10

11

6

9

12

8

2

7

T6000

1

4

10

11

6

9

12

8

2

7

T6001

R6030XX

50V4700pC6032

50V0.1

C6027

2.2kR6040

1/10W

R6055

1/4WRN

2.2M

1/4WRN

2.2MR6056

R6101101W

1/10WRN-CP

39kR6007

1/10WRN-CP

39kR6008

1/10W160

R6021

250V4700p

F

C6006

25V47

C6020

1

2

CN6004XX

PFC1

PFC2

CONNECTED TO SECONDARY BY METAL SUPPORT

TO B BOARD

TO LCD

TO A BOARD

G..-KLV-20SR3

8.2MR6000

1WRN

PT275V0.47

C6004

AC IN

AC IN

CN0260

CN6204

CN6301

MAIN RECTIFIERDRIVER

CN6005

R60620

50V

TO A BOARDCN6201

COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL

G POWER SUPPLY

A B C D E F G H I J K L M N

1

2

3

4

5

6

7

8

9

10

11

O

- 34 -

~ H1 Board Schematic Diagram [ Control Buttons ] ~

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

1 2 3 4

4PCN9000

25V0.1

C9001

CHIP0

R9008

1/10W4.7k

R9000

1/10W10k

R9001

1/10W22k

R9002

XXR9003

CHIP0

R9004

1/10W4.7k

R9005

1/10W10k

R9006

CHIP0

R9007

25V0.1

C9000

XXFB9000

S9000 S9001S9002

S9003 S9004 S9005S9006

UDZS-5.6BD9000

UDZS-5.6BD9001

H1.-KLV-20SR3

KE

Y 1

GN

D

GN

D

KE

Y 2

TO B BOARDCN0101

COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL

H1 CONTROL BUTTONS

TO A BOARDCN2211

TO H3 BOARDCN3702

UDZS-9.1B

UDZS-9.1B

DTZ-TT11-6.8B

DTZ-TT11-6.8B

L92040

L92050

L92060

COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL

H2FRONT INPUT, HP OUTPUT

A B C D E F G H I J K L M N

1

2

3

4

5

6

7

8

9

10

11

O

- 36 -

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

~ H3 Board Schematic Diagram [ Scart 2 ] ~

+

+

CN9300

BUFFER

BUFFER

BUFFER

BUFFER

BUFFER

BUFFER

BUFFER

ANALOGUEMULTIPLEXER/

DEMULTIPLEXER

TO A BOARDCN3621

1016V

47

47

150

33K

33K

R3704 0

R3705 0

R3706 0

R3707 0

R3708 0

R3710 0

R3711 0

R3713 0

R3714 0

R3715 0

R3716 0

R3717150

COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL

H3 SCART 2

1

2

3

4

5

6

6PCN9050

+5VSTBY

SIRCS

GND

GND

LED1

LED2

UDZS-5.6BD9053

1/10W47

R9051

CHIP0

R9050

VC

C

OU

T

GN

D

RS-20IC9050

UDZS-5.6BD9050

SLR-325MCT31D9051

SLR-325VCT31D9052

50V2200pC9052

10V22

C9051

25V0.1

C9053

+5VSTBY

+5VSTBY

6.3V47

C9050

ST-BYPOWER

H5.-KLV-20SR3

TO A BOARDCN0041

COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL

H5 IR RECEIVER & LED'S