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

Page 27

CONTROL

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

Image 27

Contents http//aic.lgservice.com CHASSIS LD0AWSERVICE MANUAL READ THE SAFETY PRECAUTIONS IN THIS MANUALSPECIFICATION CONTENTSCONTENTS PRODUCT SAFETYBefore returning the receiver to the customer SAFETY PRECAUTIONSIMPORTANT SAFETY NOTICE General GuidanceElectrostatically Sensitive ES Devices SERVICING PRECAUTIONSPower Output, Transistor Device Removal/Replacement IC Remove/ReplacementReplacement Small-Signal Discrete Transistor Removal/Replacement3. Test method SPECIFICATION4. Model General Specification 1. Application range6. RGB Input PC 5. Component Video Input Y, CB/PB, CR/PR7. HDMI Input PC/DTV 1 DTV Mode2 PC Mode 3. Main PCB check process ADJUSTMENT INSTRUCTION1. Application Range 2. DesignationAfter downloading, have to adjust Tool Option again 3.1. ADC Process3.2. EDID Download 3.3. EDID dataManual W/B process using adjusts Remote control 4. Total Assembly line process4.1. Adjustment Preparation 3.4. Function Check5. GND and HI-POT Test 4.3. Outgoing condition Configuration6.1. Signal TABLE 6.2. Command Set7. CI+ Key Download method TROUBLESHOOTING 1. Power-up boot checkNo No No No No 2. Digital TV Video 3. Analog TV VideoNo No No No ok No 4. AV Video5. Component Video No No No7. RGB Video 6. SCART VideoCheck HDMI Cable conductors for damage or open conductor 8. HDMI Video9. All Source Audio 11. Analog TV Audio 10. Digital TV Audio12. AV Audio 13. Component/ SCART Audio14. RGB Audio Rear DIAGRAMBLOCK SideEXPLODED VIEW LGE Internal Use Only Only for training and service purposesGP3S7LR Copyright 2012 LG Electronics. Inc. All rights reservedDDR3 Normal PowerVDDC Normal+1.5VDDR FROM LIPS & POWER B/DPowerDET +3.3VNormalCONTROL IR & LED IC1450 USBDIODESGP3S7LR20110324 HDMI8 HDMI EEPROMHDMI1 SIDEHDMIRGB/SPDIF/PC/HP New Item DevelopmentGP3S7LR RS232C9PIN RS232CFILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS K4B1G1646G-BCH9 GP3S7LR DDR256DDR3 1.5V By CAP - Place these Caps near Memory IC1201-*1IC1401-*1 GP3S7LR SFLASHGP4RGLOBALTUNERBLOCK GP3S7LR20110511 TUNERLIC501 NTP-7400L GP3S7LR NTP7400GP3S7LR REAR JACK Full Scart/ Comp1SIDE COMPONENT PHONE JACK New Item Developmen 10067972-0500LF CI RegionOption name of this page CISLOT because of Hong Kong GP3S7LR PCMCI20110324 GASKETSMD GAS GP3 S7LR