LG Electronics 32LS679C-ZC IR/LED and control for normal models, LGE Internal Use Only

Page 22

IR/LED and control for normal models.

IR/LED and control for normal models.

IR_OUT

R2410

22

IR_OUT

IR

+3.5V_ST

R2404

R2405

10K

10K

R2411

1%

1%

12_SUB

11_SUB

OPT

100

L2401

SENSOR_SCL

P2401

P2402

P2403

R2401

BLM18PG121SN1D

OPT

OPT

12507WR-10L

12507WR-15L

12507WR-12L

C2408

KEY1

100

18pF

D2403

50V

5.48VTO5.76V

C2401

OPT

1

D2402

1

1

0.1uF

5.6V

R2402

L2402

AMOTECH CO.,

LTD.

R2412

100

BLM18PG121SN1D

100

2

2

2

KEY2

SENSOR_SDA

OPT

OPT

OPT

C2409

D2404

3

C2402

D2401

18pF

5.48VTO5.76V

3

3

0.1uF

5.6V

50V

AMOTECH CO.,

LTD.

4

JP2407

4

4

+3.5V_ST

+3.5V_ST

JP2408

5

5

5

L2403

IR_OUT_EU

+3.5V_ST

BLM18PG121SN1D

6

6

6

R2425

IR_OUT

OPT

1K

R2413

R2429

+3.5V_ST

C2403

C2404

LED_B/LG_LOGO

1.5K

7

7

7

3.3K

IR_OUT_EU

0.1uF

1000pF

12_SUB

IR_OUT_EU

16V

50V

R2430

R2432

OPT

Q2406 C

10K

1.5K

C2410

JP2409

8

MMBT3904(NXP)

B

IR_OUT

R2426

LED_R/BUZZ

0.1uF

8

8

3.3K

16V

E

R2431

C

47K

JP2410

9

9

9

IR_OUT

B

Q2405 E

C2407

OPT

MMBT3904(NXP)

+3.3V_Normal

100pF

D2405

10

11_SUB

50V

5.48VTO5.76V

10

10

L2404

11

BLM18PG121SN1D

JP2411

11

11

IR_OUT_US

OPT

R2409

11_SUB

11_SUB

R2414

0

1.5K

12

C2405

C2406

LED_R/BUZZ

12

0.1uF

1000pF

16V

50V

OPT

R2416

13

13

10K

14

15

16

S/T_SCL

OPT

OPT

C906

D902

ADUC

5S

02

0R5L

18pF

5.5V

S/T_SDA

50V

OPT

OPT

C907

D903

ADUC

5S

02

0R5L

18pF

5.5V

50V

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.

GP4L_S7LR22011/11/16

IR/CONTROL6

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

Image 22

Contents READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS LD21BSERVICE MANUAL http//aic.lgservice.comSERVICING PRECAUTIONS CONTENTSSAFETY PRECAUTIONS SPECIFICATIONSAFETY PRECAUTIONS IMPORTANT SAFETY NOTICESERVICING PRECAUTIONS Electrostatically Sensitive ES DevicesSmall-Signal Discrete Transistor Removal/Replacement IC Remove/ReplacementReplacement Removal1. Application range SPECIFICATION4. Model General Specification 3. Test methodDVB-S2 8PSK / QPSK 2 ~ 45Msymbol/s Symbolrate 4.0Msymbols/s to 7.2Msymbols/ssymbolrate DVB-S QPSK 2 ~ 45Msymbol/s5.1. Component Input Y, CB/PB, CR/PR 5. Video resolutions 2D5.2. RGB Input PC 5.3. HDMI InputPC/DTV PCDVI1. Application Range ADJUSTMENT INSTRUCTIONBoot file Download 2. Designation3.2. EDID Download 3.1. ADC Process3.3. EDID data 7. ADC Calibration4.1. Adjustment Preparation 4. Total Assembly line process3.4 Function Check 5. HI-POT Test 4.3. Outgoing condition Configuration6.1. Signal Table 6. Model name & Serial number D/L7.1 MAC Address 7. MAC Address & CI+ key download6.3. Method & notice GP4LOW7.2 LAN Inspection 7.3. LAN PORT INSPECTIONPING TESTח ͷͲͳͤͤͤͪͥͣ͢͡ ͙;ͤ͛ͽͥͦ͑͟͝ͳͼ͑͝;ΒΔΙΚΟΖ͚ ח ͣ͢ͶͲ SCREW ASSEMBLY WORKING GUIDEScrew specification and application situation ח ͷͲͳͤͨͩͩͣ͑͢͡͡ ͙;ͧ͛ͽ͑͢͡͝ͳͼ͑͝;ΒΔΙΚΟΖ͚Side BLOCK DIAGRAMRear LG2111 AEXPLODED VIEW to delete CI or gate for GP4LS7LR22011.12.01Copyright 2012 LG Electronics. Inc. All rights reserved for SYSTEM EEPROMNormal Normal PowerVDDC DDR3+3.3VNormal FROM LIPS & POWER B/DPowerDET +1.5VDDRIR/LED and control for normal models USB1DIODES USB SIDEUSB2DIODES HDMI SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION RGB-PC / SPDIFTHE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF ISCOMMERCIAL/NonOS MODEL OPTION COMMERCIAL MODEL OPTION RS-232CFor Comsumer model, use 4PIN Wafer LVDS for large inch IC1201 S7LR2DIVXMS10GP4LS7LR22011/06/03 DDR25612 H5TQ1G63DFR-H9CSFLASHMAINMACRONIX Serial Flash for SPI bootSFLASHMAINWINBOND IC1401-*1 W25Q80BVSSIG PHONE Headphone *Option HEADPHONEHEAD Option name of this page CISLOT because of Hong Kong CI Region10067972-0500LF GP4LS7LR22011/06/14 ETHERNET21 H/W option ETHERNETETHERNET TU2601 GP4RGLOBALTUNERBLOCKTU2602TU2603 TDSS-G101D TDSN-G301D TDSQ-G001DGP4LS7LR22011/11/02 DVBS27 DVB-S2 LNB Part AllegroOptionLNB DCDCGND and AGND are connectedJK2801 SCART / COMPONENT&COMPSITFULL SCART / COMPONENT1 PSC008-01AUDIO AMPSTA380BWE Page Contents of LCD TV Standard Repair Process Error symptom Contents of LCD TV Standard Repair Process Detail Technical ManualContinue to the next page ContentMain B/D↔ Power B/D, LVDS Cable,Speaker Cable,IR B/D Cable A. Video errorLCD TV A2 Check Power Board 24v outputBoard 3.5V,12V,20V voltages of PowerCheck various or 24V…Menu→ Set up→ Support → Signal Test Signal strength Normal over 50% By using Digital signal level meter By using Diagnostics menu on OSDSignal Quality Normal over 50% → Set-Top-Box, Different maker TV etc ※ Check A8/ A9Check color by input -External Input COMPONENT -RGB Link CableConnect other external device and cable External device screen error-Color errorVertical/Horizontal bar, residual image, light spot Check color condition by input -External Input -Component RGBCheck Power On ‘”High” B. Power errorCheck Power LED Measure voltage of each output of Power B/DPOWEROFFABNORMAL1 Check Power Off ModeIf Power Off mode is not displayed Check Power B/D voltage POWEROFFCPUABNORMALCheck user menu Speaker off C. Audio error24V of Power Check audio B+In case of External Input signal error Check and fix external device Check audio B+ Voltage1. Remote controlR/C operating error D. Function errorCheck & Repair Recognition error Check input signalY Check technical Signal information input? - Fix information Replace Main B/DE. Noise Identify nose typeF. Exterior defect