LG Electronics 32LT360C-ZA service manual

Page 32
Manual background

RGB

RGB PC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+5V_Normal

 

 

 

 

 

D1115

 

 

 

 

 

 

 

 

 

 

 

 

ENKMC2838-T112

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A1

 

 

 

 

 

 

 

 

 

 

 

 

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A2

 

 

 

 

 

 

 

 

 

 

R1139

 

R1140

 

 

 

 

 

 

 

C1129

 

 

 

 

2.2K

 

 

 

 

 

 

 

 

 

 

2.2K

 

 

 

 

 

 

 

 

 

0 . 1 u F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RGB_DDC_SCL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RGB_DDC_SDA

 

C1127

C1128

 

R1141

 

 

 

 

 

 

 

 

 

18pF

18pF

 

 

22

 

 

 

 

 

 

R1143

 

50V

50V

 

 

 

 

 

 

 

 

 

 

22

 

DSUB_VSYNC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DSUB_HSYNC

 

C1126

 

 

 

 

 

 

 

 

 

 

 

 

D1116

C1122

D1109

D1113

 

 

D1114

 

 

 

 

 

 

68pF

68pF

 

 

 

 

 

 

 

 

 

 

 

30V

50V

 

 

 

 

 

 

 

 

 

 

 

 

5.6V

50V

 

 

 

 

5.6V

 

 

 

 

 

 

 

OPT

30V

 

 

 

 

 

 

 

 

OPT

OPT

 

 

 

OPT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DSUB_B+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R1133

D1110

 

 

 

 

 

 

 

 

 

 

 

 

 

 

75

30V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DSUB_G+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R1135

D1111

 

 

 

 

 

 

 

 

 

 

 

 

 

 

75

30V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+3.3V_Normal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R1146

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10K

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DSUB_DET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R1147

DSUB_R+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1K

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R1137

D1112

 

 

 

 

 

 

 

 

 

 

 

 

 

D1117

30V

 

 

 

 

 

 

 

 

 

 

 

 

 

5.6V

75

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OPT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RED GND GND 2

RED GREEN GND

DDC DATA

GREEN

BLUE GND H SYNC

BLUE

NC

V SYNC

GND 1

SYNC GND

DDC CLOCK

DDC GND

 

 

JK1104

SPG09-DB-010

6

11

7

12

8

13

9

 

14

10

 

15

16 SHILED

 

 

 

 

1

 

2

 

3

 

 

4

 

 

5

 

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

GP3_S7LR

20110324

ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR

RGB/SPDIF/HP

9

THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

Copyright © 2012 LG Electronics. Inc. All rights reserved.

LGE Internal Use Only

Only for training and service purposes

 

Image 32
Contents SERVICE MANUAL READ THE SAFETY PRECAUTIONS IN THIS MANUALhttp//aic.lgservice.com http//eic.lgservice.comOnly for training and service purposes CopyrightLG Electronics. Inc. All rights reserved LGE Internal Use OnlySAFETY PRECAUTIONS General GuidanceBefore returning the receiver to the customer Leakage Current Cold CheckAntenna Cold CheckSERVICING PRECAUTIONS Electrostatically Sensitive ES DevicesIC Remove/Replacement ReplacementSmall-Signal Discrete Transistor Removal/Replacement RemovalSPECIFICATION 4. Model General Specification1. Application range 3. Test method5. Video resolutions 2D 5.1. Component Input Y, CB/PB, CR/PRPCDVI 5.2. RGB Input PC5.3. HDMI InputPC/DTV ADJUSTMENT INSTRUCTION 1. Application Range2. Designation 3. Main PCB check process4. Total Assembly line process 4.1. Adjustment Preparation3.1. ADC Process 3.2. Function CheckManual W/B process using adjust Remote control 4.4. EDID data4.2. DDC EDID Write RGB 128Byte 4.3 DDC EDID Write HDMI 256Byte4.5. V-COM AdjustOnly LGDM+S Module 4.6. Outgoing condition ConfigurationWhy need Vcom adjustment? Adjust sequence5. Model name & Serial number D/L 5.1. Signal Table5.2. Comand Set 5.3. Method & noticeCI+ Key Value 6. CI+ Key Download method6.1. Download Procedure 2. Digital TV Video TROUBLE SHOOTING1. Check the booting Voltage 3. Analog TV Video 4. AV Video5. RGB Video 6. HDMI Video7. Audio of All iput 8. TV Audio9. AV Audio 10. RGB AudioDIAGRAM BLOCKand service purposes RearEXPLODED VIEW Copyright 2012 LG Electronics. Inc. All rights reserved GP3S7LR20110511 CVBS COMPFROM LIPS & POWER B/D PowerDET+1.5VDDR +2.5V/+1.8VCONTROL IR & LED IR OUTUSBDIODES GP2R20101023 USBOCPDIODED803 AVRL161A1R1NT S7LRDIVXMS10 IC1201IC101 LGE2112-T8 IC1202 H5TQ1G63DFR-H9CTUNERL P4RGLOBALTUNERBLOCKGP3S7LR IC501 NTP-7500L20110324 NTP7400REARJACK Rear AVF u l l S c a r t SIDE COMPONENT PHONE JACK Page RS232C 12V EXT PowerOutDC DC CONVERTER +12VONLY PSU For External power LVDS for large inch MIRROR Pol - changeMIRROR Pol - changeSFLASH IC1401MX25L8006EM2I-12G IC1401-*1EXTSPEAKERAMP SPEAKER OUT JACKPCMCI CI RegionOption name of this page CI SLOT because of Hong Kong