42SL90QD-DA (CHASSIS:LT91L) - LG TV Service Manual (repair manual). Page 22

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.

IR

LED_ON

C5001

0.1uF

D5003

5.6V

AMOTECH

D5004

5.6V

CDS3C05HDMI1

C5006

1000pF

50V

+3.3V_ST

R5010

0

D5005

5.6V

CDS3C05HDMI1

L5001

BLM18PG121SN1D

R5001
100

D5002

5.6V

AMOTECH

IR

SCL_SUB/AMP

L5005

BLM18PG121SN1D

+5V_ST

KEY1

R5004

4.7K

OPT

L5003

BLM18PG121SN1D

OPT

C5003

0.1uF

16V

R5002
100

L5002

BLM18PG121SN1D

C5004
100pF

50V

C5007

1000pF

50V

KEY2

D5001

5.6V

AMOTECH

SDA_SUB/AMP

C5002

0.1uF

C5005

0.1uF

16V

R5003

4.7K

OPT

C500

0.1uF

16V

R508

10K

R506
100

Q502

2SC3052

IR_OUT

E

B

C

R503

10K

IR_OUT

IR_OUT

R505

47K

IR_OUT

R504

10K

IR_OUT

R501

22

IR_OUT

+5V_ST

+5V_ST

Q501

2SC3052

IR_OUT

E

B

C

R502

10K

IR_OUT

R507

10K

+3.3V

P5001

12507WS-12L

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

R5008 100

R500

10K

OPT

+3.3V

L5004

BLM18PG121SN1D

+3.3V_ST

D5006

5.6V

AMOTECH

D5007

5.6V

AMOTECH

R5006
100

R5005
100

EAX61268901

5    11

   2009.04.23

close to wafer

IR & LED

Zener Diode is