LG Electronics 42CS669C-ZD service manual Control Ir & Led, LGE Internal Use Only

CONTROL

IR & LED

+3.5V_ST

R2405

EYEQ/TOUCH_KEY

R2404

R2411

EYEQ/TOUCH_KEY

OLD_SUB

10K

10K

100

1%

1%

SENSOR_SCL

P2401

12507WR-12L

C2408

5.6V

18pF

D2403

50V

L2401

OPT

R2401

BLM18PG121SN1D

1

100

KEY1

EYEQ/TOUCH_KEY

EYEQ/TOUCH_KEY

L2402

100

R2402

2

D2402

SENSOR_SDA

100

BLM18PG121SN1D

5.6V

R2412

5.6V

KEY2

C2409

AMOTECH

D2404

C2401

C2402

18pF

3

50V

0.1uF

0.1uF

D2401

OPT

5.6V

4

AMOTECH

JP2407

+3.5V_ST

+3.5V_ST

JP2408

5

L2403

BLM18PG121SN1D

R2425

+3.5V_ST

6

47K

R2428

OPT

22

R2429

+3.5V_ST

C2403

C2404

R2413

1.5K

7

IR

47K

0.1uF

1000pF

LED_B/LG_LOGO

OPT

16V

50V

R2430

OPT

C2410

Q2406 C

B

10K

R2426

0.1uF

JP2409

8

2SC3052

16V

E

OPT

47K

OPT

R2431

C

47K

JP2410

9

B

Q2405 E

OPT

C2407

2SC3052

D2405

100pF

OPT

+3.3V_Normal

50V

5.6V

10

L2404

BLM18PG121SN1D

R2427

JP2411

11

0

LED_R/BUZZ

R2414

12

C2405

C2406

1.5K

0.1uF

1000pF

OPT

13

16V

50V

R2416

10K

S/T_SCL

		NEW_SUB
	C906	D902
	18pF	CDS3C05HDMI1
	50V	5.6V
	OPT
S/T_SDA
		NEW_SUB
	C907	D903
	18pF	CDS3C05HDMI1
	50V	5.6V
	OPT

NEW_SUB

P2402

12507WR-15L

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

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.

GP3_S7LR 20110324

IR/CONTROL-L 6

Copyright © 2012 LG Electronics. Inc. All rights reserved.	LGE Internal Use Only
Only for training and service purposes