42GA6400-UD (CHASSIS:LA37G) - LG TV Service Manual (repair manual). Page 29

Fiber Optic

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.

AV1_R_IN

COMP1_Pr

AV1_L_IN

+3.3V_NORMAL

AV1_CVBS_DET

COMP1_DET

COMP1_Pb

AV1_CVBS_IN

COMP1_Y

+3.3V_NORMAL

SOC_RX

+3.5V_ST

SOC_TX

P3800

12507WS-04L

1

2

3

4

5

R3810
10K

R3806

10K

D3803
5.6V

OPT

D3800
5.6V

OPT

D3801
5.6V

OPT

D3802
5.6V

OPT

D3801-*1
5.6V

ESD_MTK

D3802-*1
5.6V

ESD_MTK

D3800-*1

5.6V

ESD_MTK

D3803-*1
5.6V

ESD_MTK

D3803-*2
5.6V

ESD_LG1152

D3801-*2
5.6V

ESD_LG1152

D3802-*2
5.6V

ESD_LG1152

D3800-*2

5.6V

ESD_LG1152

JK3801

KJA-PH-1-0177-2

3

M3_DETECT

4

M4

5

M5_GND

1

M1

6

M6

JK3800

KJA-PH-1-0177-1 

3

M3_DETECT

4

M4

5

M5_GND

1

M1

6

M6

D3807
5.6V

OPT

C3804

18pF

50V
ESD_MTK

D3806
5.6V

OPT

C3805

18pF

50V
ESD_MTK

VA3700-*2

5.6V

ESD_LG1152_HP_OUT

HP_LOUT

HP_DET

VA3700-*1

5.6V

ESD_MTK_HP_OUT

R3700

10K

HP_OUT

HP_ROUT

+3.3V_NORMAL

VA3700
5.6V

OPT

JK3700

KJA-PH-0-0177

EAG61030001

HP_JK

3

DETECT

4

L

5

GND

1

R

SPDIF_OUT

D3613-*1

5.5V

ADUC 5S 02 0R5L 

ESD_MTK

+3.3V_NORMAL

D3613
5.5V

ADUC 5S 02 0R5L 

OPT

C3615
0.1uF

16V

JK3602

2F11TC1-EM52-4F

C

GND

B

VCC

A

VIN

4

SHIELD

R3620

2.7K

OPT

R3615

33

RS232C

CVBS 1 PHONE JACK

COMPONENT 1 PHONE JACK

38

JACK_COMMON

2011.11.21

ESD For MTK

ESD For LG1152

Close to the jack

ESD for LG1152

ESD for MTK

HEADPHONE

SPDIF OUT