42LD320H (CHASSIS:LB0AW) - LG TV Service Manual (repair manual). Page 23

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.

KEY2

C2402

0.1uF

D2401

5.6V

AMOTECH

R2402
100

C2407
100pF

50V

C2404

1000pF

50V

L2402

BLM18PG121SN1D

C2401

0.1uF

+3.5V_ST

R2410
100

R2401
100

+3.5V_ST

KEY1

L2403

BLM18PG121SN1D

L2401

BLM18PG121SN1D

C2403

0.1uF

16V

D2402

5.6V

AMOTECH

Q2406

2SC3052

E

B

C

R2429

47K

R2430

10K

R2431

47K

R2428

22

+3.5V_ST

Q2405

2SC3052

E

B

C

+3.5V_ST

IR_OUT

+3.5V_ST

R2426

3.3K

OPT

R2427
0

OPT

JP2407

JP2408

JP2410

JP2411

D2405

5.6B

R2432

10K

IR_OUT

+5V_ST

R2433
0

R2434

22

R2435

10K

R2436
4.7K

IR_OUT_HDMI1

Q2407
2SC3052

E

B

C

IC2401

74AC08SJ

3

O0

2

B0

4

A1

1

A0

6

O1

5

B1

7

GND

8

O3

9

B3

10

A3

11

O2

12

B2

13

A2

14

VCC

IR_OUT_HDMI2

+3.5V_ST

IR_OUT_CTRL

C2408
0.1uF

IR_OUT_RS232C

IR

P2401

12507WS-08L

1

KEY1

2

KEY2

3

GND

4

5V_ST

5

GND

6

IR

7

LED_B

8

LED_R

9

.

P2402

12507WR-03L

22~26"

1

KEY1

2

KEY2

3

GND

4

L2404

BLM18PG121SN1D

22~26"

D2406

5.6V

AMOTECH

22~26"

C2409

0.1uF

22~26"

D2407

5.6V

AMOTECH

22~26"

C2410

0.1uF

22~26"

L2405

BLM18PG121SN1D

22~26"

NEC_IR

LED_R

LED_B

C2411

1000pF

50V

L2406

BLM18PG121SN1D

L2407

BLM18PG121SN1D

C2412

1000pF

50V

D2408

5.6V

AMOTECH

D2409

5.6V

AMOTECH

JP2412

JP2413

JP2414

R2405

4.7K

R2404

4.7K

R2425

1K

CONTROL

IR & LED

IR & LED

close to wafer

Zener Diode is

Ver. 1.0

6

IR_OUT

EAX62115501