LG Electronics 425010, 425030, 425020 service manual LCD Panel, Block Diagram

Page 28

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BLOCK DIAGRAM

I2C_A_TU I/O Expander (IC103)

 

 

 

LCD Panel

52/47/42/37￿: FHD

32￿: : HD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Memory

(IC300)

 

 

 

 

 

 

 

 

 

 

MemoryFlash (IC102)4MB

 

MemoryFlash (IC101)4MB

 

Memory

(IC300)

 

LVDS

 

 

 

DDR

256Mb

 

 

 

 

 

 

DDR

256Mb

 

 

 

 

 

 

 

 

 

 

 

 

LED G/R & IR

KEY1/2 IIC(Eye Q II)

SP (L)

SP (R)

 

P1000

NTP3000A

(IC1000)

MUTE

IIS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PCM_CD_ON

 

 

 

 

 

 

 

KIA742724C512

(IC104)

 

RESETI2C

 

 

 

 

 

 

 

Saturn3+

 

 

 

 

TS_Parallel

 

SlotCI

 

 

KIC7SZ32FU

(IC802)

 

 

 

 

 

 

 

 

 

 

 

 

 

TPA6110A2

(IC1002)

 

(P800)

1/2CD

 

 

(IC105)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PCM_ADD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PCM_DATA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TS_Serial

 

 

 

_ CI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SPDIF Out

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Head phone Out

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DDC/UART-Tx/Rx

 

 

 

 

 

 

 

 

 

Side_Y/C/V/L/R

 

 

 

 

 

 

 

 

 

 

 

STMAV340

(IC700)

 

 

 

 

 

 

 

 

 

74LVC541A

(IC800)

I2CHDMI

CEC/Rx/HPDHDMI

 

 

HDMI5V

 

 

 

 

 

 

 

 

R/G/B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DTV/MNT L/R OUT

 

 

 

 

 

 

 

EEPROM

 

 

 

 

 

 

 

74HC4066

 

 

 

HDMI Switch

(IC902)

 

SC2 L/RIN

DTV/MNT V OUT

SC2 CVBS IN

SC1 CVBSIN

TV L/ROUT

SC1 L/R IN

SC1 R/G/B SC1 TV VOUT

 

DSUB R/G/B

DSUB H/V SYNC

PC L/R IN

5V ANT MNT BOOSTER

TV CVBS SIF

TU TS DATA

I2C D TU / I2C A_

COMP Y/Pb/Pr

COMP L/R IN (IC1001)

USB DM/DP

 

MAX3232 (IC702)

EEPROM HDMI I2C 0

HDMI CEC x3

TMDS x3

HPD x3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TV Tuner

 

 

 

 

 

 

 

 

 

 

 

 

Copyright © 2007 LG Electronics. Inc. All right reserved.

- 28 -

LGE Internal Use Only

Only for training and service purposes

 

 

Image 28
Contents LCD TV Contents Safety Precautions General GuidanceServicing Precautions Electrostatically Sensitive ES DevicesIC Remove/Replacement Specification SpecificationGeneral Specification Application RangeModel General Specification MAX / MIN Chroma & BrightnessRED 更多难得资料请到江南家电维修论坛免费下载! http//bbs.520101.com SET Optical Feature Component Video Input Y, PB, PRHdmi Input DTV Hdmi Input PCMechanical specification Application Range Adjustment InstructionMain PCB check process USB Download Total Assembly line process AV SCART1/SCART2/S-VHS/CVBSHdmi Calibration Component更多难得资料请到江南家电维修论坛免费下载! http//bbs.520101.com Edid Data Adjusting the White Balance How to adjustSelect the option by country Set the shipping mode In-stopGND and resisting pressure test How to adjust for downloading Adjustment condition Download conditionISP Download option How to dowunload USB S/W Download optionTroubleshooting TV/CATV doesnt displayDTV doesnt display AV1/2/3 doesnt display Component doesnt display RGB PC doesnt display Hdmi doesnt display Block Diagram LCD PanelExploded View 更多难得资料请到江南家电维修论坛免费下载! http//bbs.520101.com 更多难得资料请到江南家电维修论坛免费下载! 更多难得资料请到江南家电维修论坛免费下载! http//bbs.520101.com Apr