Sony KLV-27HR3 Service Manual

WA1

RM-Y1108

SERVICE MANUAL

MODEL

KLV-27HR3

COMMANDER DEST

RM-Y1108 AEP

WA1

CHASSIS

KLV-27HR3

RM-Y1108

FLAT PANEL COLOR TV

- 1 -

4-1. BLOCK DIAGRAMS (2)

5-2. CIRCUIT BOARD LOCATION

5-3. 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 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

H1

B

H2

H5

G2

A

H3

TUNER, AUDIO,

CHROMA DECODER,

A ( )

AMPLIFIER

CN3621

SC2-IN-L-H3

15

SC2-IN-R-H3

17

SC2-OUT-R-H3

13

SC2-OUT-L-H3

11

4

CN3602

TU1100

CN6201

CN6204

21

23

24

25

VIDEO

AGC

SCL

SDA

FM/AM

QSS

11

8

6

2

1

2

3

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

PANEL DET

BACKLIGHT

DIMMER

POWER AV

TO H3 BOARD

CN3703

TO G2 BOARD

SCART

CN6005

CN6001

TO H2 BOARD

CN9200

CN2211

1

3

5

7

9

FRONT-IN-L

FRONT-IN-R

HP-L-OUT

HP-R-OUT

HP PLUGGED

BUFFER

Q3600

AGC DEFEAT

Q1100

SWITCH

Q0002

BUFFER

Q2600

BUFFER

Q2601

Q1300, Q1301

HEADPHONE AMP

3

1

LUMINANCE

CHROMINANCE

SC1-OUT-R

SC1-IN-R

SC1-OUT-L

SC1-IN-L

AMPLIFIER

B SCART 1

MODE 1

G SCART 1

R SCART 1

FB SCART 1

CVBS AV1

FRONT-IN-R

FRONT-IN-L

SC1-IN-R

SC1-IN-L

SC2-IN-R

SC2-IN-L

SC2-OUT-L

SC2-OUT-R

SC1-OUT-L

SC1-OUT-R

BUFFER AMP Q2100, Q2101

IC2300

R.IN

L.IN

BUFFER

Q2301

SWITCH &

BUFFER

Q6200, Q6203

+14.3V

FM/AM

QSS

7

6

PORT EXPANDER

19

P6

2

SCL

4

SDA

16

P4

17

P5

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

Q3806

Y FRONT

44

C FRONT

43

3

CVBS RF

1

FB-SCART 1

IC0030

BUFFER

Q1200

P0

P2

P3

P1

10

12

14

11

6

COINCIDENCE

LED 2

LINE MUTE

RESET AUDIO

IC6202

REGULATOR

2

1

SOUND PROCESSOR

IC2000

POWER ON

RESET

SDA

SCL

XTAL IN

XTAL OUT

SPEAKER OUT R

SPEAKER OUT L

BUFFER

Q2300

3

+8V

21

3

2

X2000

71

72

27

28

IC3801

SUB VIDEO PROCESSOR

CVBS2/Y2-IN

CVBS3/Y2-IN

C2-IN

CVBS OUT

CVBS/Y1-IN

IC1200

TV ID

4

CIRCUIT

R1-IN

G1-IN

B1-IN

YS3

BUFFER

Q0001

AMPLIFIER

Q1201

SCL

SDA

Q2200 Q2202 Q2204

FILTER FL3800

R SCART 1

27

G SCART 1

26

B SCART 1

25

FB SCART 1

15

CVBS AV1

41

Y OUT

AMPLIFIER

21

9

22

23

13

14

Q3808

H5

CB-OUT

AMPLIFIER

Q3809

CR-OUT

SCL

SDA

IC0001

PORT EXPANDER

2

SCL

4

SDA

14

P3

16

P4

AMPLIFIER

Q2000

BUFFER

Q2001

BUFFER

Q2002

SWITCH

Q2203

10

P0

11

P1

12

P2

BUFFER

Q3802

SYNC ADDER

2 4

AMPLIFIER

Y/C SWITCH

VIDEO SWITCH

IC2500

AUDIO POWER AMP

2

OUT 2

IN2+

OUT 1

4

IN1+

8

MUTE TC

11

MUTE

IC2400

AUDIO LINE BUFFER

3

5

MUTE CIRCUIT

Q2400, Q2401 Q2405, Q2406

AMPLIFIER

Q2404

IC3811

Q3807

12

SCART 1

CN0042

SCL

2

SDA

3

SERVICE

4

CS

CN0043

CS

CVBS MONITOR524

LUMINANCE

CHROMINANCE

IC0002

DIMMER LPF

3

1

BUFFER

Q0047

POWER AV

BUFFER

Q0046

7

L

7

R

1

Y SYNC 29

CR

SCL-5

SDA-5

MODE 2

AV LINK

DIMMER

LED 1 11

SIRCS

LED 1

LED 2

+5V STBY

SP R OUT

SP L OUT

8MODE 1

20CB

21

12

14

9

28

25

1

10

4

3

CN0041

2

5

6

1

CN2500

1

3

J2400

L

R

TO B BOARD

TO H5 BOARD

SPEAKERS

CN3000

CN9050

4-2. CIRCUIT BOARD LOCATION

4-3. SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDS

- 26 -

1

WA1- A ..- KLV-27HR3

COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL

A

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

100ns/div

A(1/3) Board Waveform

3.0Vp-p (H)

TP1

CN9200

HEADPHONE

AMPLIFIER

XX

PORT EXPANDER

XX

AUDIO POWER AMP

AUDIO LINE

BUFFER

TO SPEAKERS

SPEAKERS

TP1

XX

0.0022 50V

5

0

V

0

.0

0

2

0.001

XX

0

RB053L-30TE25

XX

1000

35V

2.5A

1000

35V

XX

220

120

MSD601-RST1

22K

10K

150K

3.9K

XX

A.GND

R2518 0

R2519 0

R2520 0

A.GND

R2522 0

R2523 0

R2517 0

R2219

0

XX

XX XX

0

XX

D2401

22K

100 0.1

50V

MSD601-RST1

1

16V

0.1 16V

12K

XX

0.1

0.01 25V

XX

560

25V

4.7

6.3V

1

50V

1

50V

47K

47K 47K

470

XX

1

16V

2

3

ABCDE F

G

HI JKLMN

O

10

4

5

6

7

8

9

11

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

- 27 -