47LD450 (CHASSIS:LA01B) - 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.

Q2401

2SC3052

Commercial_EU

E

B

C

KEY2

R2412

100

EYEQ/TOUCH_KEY

R2403

22

Commercial

+3.5V_ST

R2408

47K

Commercial

C2408
1000pF
50V

OPT

R2409

47K

Commercial

+3.5V_ST

C2405

0.1uF

16V

C2402

0.1uF

D2401

5.6V

AMOTECH

R2406

47K

Commercial_EU

R2402
100

C2407
100pF

50V

C2404

1000pF

50V

L2402

BLM18PG121SN1D

C2401

0.1uF

LED_R/BUZZ

+3.3V_Normal

+3.5V_ST

C2406

1000pF

50V

R2410
100

C2410

0.1uF

16V

OPT

R2401
100

LED_B/LG_LOGO

C2409
1000pF
50V

OPT

R2407

10K

Commercial_EU

+3.5V_ST

KEY1

L2403

BLM18PG121SN1D

L2401

BLM18PG121SN1D

R2411
100

EYEQ/TOUCH_KEY

C2403

0.1uF

16V

R2416

10K

OPT

Q2402

2SC3052

Commercial

E

B

C

L2404

BLM18PG121SN1D

IR_OUT

D2402

5.6V

AMOTECH

R2422
0

Commercial_US

R2404

10K

1%

R2405

10K

1%

R2417

22

WIRELESS

R2418

10K

WIRELESS

R2419

47K

WIRELESS

IR_PASS

R2420

47K

WIRELESS

Q2403

2SC3052

WIRELESS

E

B

C

R2421

47K

WIRELESS

Q2404

2SC3052

WIRELESS

E

B

C

+3.5V_ST

+3.5V_ST

P2401

12507WR-12L

1

2

3

4

5

6

7

8

9

10

11

12

13

R2425

47K

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

+3.5V_ST

R2426

3.3K

OPT

R2427
0

OPT

NEC_EEPROM_SCL

NEC_EEPROM_SDA

R2414

1.5K

R2413

1.5K

JP2407

JP2408

JP2409

JP2410

JP2411

D2403

5.6B

D2404

5.6B

D2405

5.6B

CONTROL

IR & LED

IR & LED

close to wafer

Zener Diode is

GP2_Saturn7M

COMMERCIAL

Ver. 1.2

WIRELESS

6