42LN549D (CHASSIS:LB3AX) - LG TV Service Manual (repair manual). Page 25

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.

100

R603

+3.5V_ST

BLM18PG121SN1D

L601

0

R604

IR_OUT_US

47K

R610

IR_OUT

KEY2

22

IR_OUT

R601

10K

1%

R606

+3.5V_ST

IR

10K

R607

IR_OUT_EU

BLM18PG121SN1D

L603

100

R602

+3.5V_ST

100pF

50V

C607

0 . 1 u F

C604

BLM18PG121SN1D

L602

+3.5V_ST

0 . 1 u F

C603

1000pF

50V

C602

10K

1%

R608

0 . 1 u F

16V

C601

IR_OUT

KEY1

+3.5V_ST

3.3K

R611

1K

R605

IR_OUT_EU

LED_R

1.5K

R615

5.6V

VA602

OPT

5.6V

VA601

OPT

5.48VTO5.76V 

ZD603

OPT

2SC3052

Q601

IR_OUT_EU

E

B

C

2SC3052

Q602

IR_OUT

E

B

C

1K

R609

IR_OUT

12507WR-08L

P601

IR_8PIN

1

2

3

4

5

6

7

8

9

5.6V

OPT

VA603

0 . 1 u F

16V

C608

OPT

I R / L E D   a n d   c o n t r o l   f o r   n o r m a l   m o d e l s .

LA2AW

2 0 1 2 . 0 9 . 1 1

IR/CONTROL

6