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THE    SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE    SYMBOL MARK OF THE SCHEMETIC.

R980

0

32"UP_IR_KEY

L957

BLM18PG121SN1D

D956
5.6V

AMOTECH

LED_ON/LED_R

P953

12507WS-12L

32"UP_IR_KEY

EAG58732902

1

SCL

2

SDA

3

GND

4

KEY1

5

KEY2

6

5V_ST

7

GND

8

WARM_ST

9

IR

10

GND

11

3.3V

12

PWR_ON

13

GND

L953

BLM18PG121SN1D

32"UP_IR_KEY

D952

26"UNDER_IR

C976

0.1uF

32"UP_IR_KEY

C983

0.1uF

32"UP_IR_KEY

L952

26"UNDER_KEY

LED_ON/LED_R

L956

26"UNDER_IR

D954

5.6V

AMOTECH

26"UNDER_KEY

D951

5.6V

26"UNDER_IR

L955

26"UNDER_IR

C975

0.1uF

16V

IR

KEY2

C980

0.1uF

16V

32"UP_IR_KEY

D955
5.6V

AMOTECH

32"UP_IR_KEY

D958

5.6V

AMOTECH

32"UP_IR_KEY

L954

26"UNDER_KEY

L951

32"UP_IR_KEY

D959

5.6V

R978

0

32"UP_IR_KEY

C978

1000pF

50V

R973

4.7K

+3.3V_ST

R972

100

KEY1

C972

0.1uF
16V

26"UNDER_KEY

R979

0

OPT

C981

1000pF

50V

32"UP_IR_KEY

C973

1000pF

26"UNDER_IR

LED_G

D953

5.6V

AMOTECH

26"UNDER_KEY

SUB/AMP_SDA

SUB/AMP_SCL

R974

4.7K

L958

BLM18PG121SN1D

32"UP_IR_KEY

D957

5.6V

C979

100pF

50V

+5V_ST

POWER_ON/RL_ON

C977
0.1uF
16V

26"UNDER_KEY

R971

100

C974

1000pF

26"UNDER_IR

L959

BLM18PG121SN1D

P951

12507WS-08L

26"UNDER_IR

EAG58732904

1

KEY1

2

KEY2

3

GND

4

5V_ST

5

GND

6

IR

7

LED_B

8

LED_R

9

.

Q910

2SC3052

OPT

E

B

C

R985

47K

OPT

Q911

2SC3052

OPT

E

B

C

R983
10K

OPT

R981

22

OPT

+5V_ST

R982

47K
OPT

+5V_ST

IR_OUT

R984

47K
OPT

C982

0.1uF

16V

32"UP_IR_KEY

R986

10K

32"UP_IR_KEY

+3.3V

LED_G_SUB

R987

0

OPT

P952

12507WR-03L

26"UNDER_KEY

1

KEY1

2

KEY2

3

GND

4

GND

MDS61887701

M2

SMD GASKET-MEMORY1

MDS61887701

M1

SMD GASKET-LVDS

MDS61887701

M3

SMD GASKET-MEMORY2

R976

100

32"UP_IR_KEY

R975

100

32"UP_IR_KEY

IR

11

10

EAX59793902(0)

2009.01.31

CONTROL & IR & LED

AUS_LH20/LH35

For LH20_LH35 MP

EAX59793902(0)_AUS_MERCURY

THE    SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE    SYMBOL MARK OF THE SCHEMETIC.

Revision History

11

EAX59793902(0)

11

2009.01.31

History of Circuit Diagram

No.

Error symptom (High category)

Error symptom (Mid category)

Page

Remarks

1

A. Video error

No video/Normal audio 

2 

No video/No audio

3

Video error, video lag/stop

4

Color error

5

Vertical/Horizontal bar, residual image, 
light spot, external device color error

6

B. Power error

No power

7

Off when on, off while viewing, power auto 
on/off

8

C. Audio error

No audio/Normal video  

9

Wrecked audio/discontinuation/noise

10

D. Function error

No response in remote controller, key error, 
recording error, memory error

11

External device recognition error 

12

E. Noise

Circuit noise, mechanical noise

13

F. Exterior error

Exterior defect

First of all, Check whether there is SVC Bulletin in GCSC System for these model.