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LG Electronics L1933TR Block Diagram, Lips, MStarACE, Line Buffer, Scaler, Intel8032, TMDS Rx

Models: L1733TR L1933TR

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BLOCK DIAGRAM

Module				KEY

LVDS

Vcc 5V

MStarACE

LVDS Tx

OSD

SSC

Line Buffer

Scaler

TSUMx6AL

Intel8032

ADC

TMDS Rx

MCU

EEPROM

(System)

3.3V

SDA /SCL

ROM

3.3V

Flash

3.3V		1.8V
3.3V		1.8V

		Regulator

		5V

12V

3.3V

1.8V

12V

(R/G/B)Analog

Sub-D

DigitalD-DVI

EEPROM

(EDID)

LIPS

12V

Filter

Inverter (4 lamps)

Copyright 2007 LG Electronics. Inc. All right reserved.	LGE Internal Use Only
Only for training and service purposes	- 12 -
Only for training and service purposes

Page 12

Image 12

LG Electronics L1933TR Block Diagram, Lips, MStarACE, Line Buffer, Scaler, Intel8032, TMDS Rx, LVDS Tx, Module, Lvds

Contents

READ THE SAFETY PRECAUTIONS IN THIS MANUAL Same model for ServiceCHASSIS NO. LM57B BEFORE SERVICING THE UNITCONTENTS SPECIFICATIONSPRECAUTION WARNING FOR THE SAFETY-RELATEDCOMPONENTmarked on the schematic diagram and the Leakage Current Hot Check CircuitSERVICING PRECAUTIONS General Servicing PrecautionsElectrostatically Sensitive ES Devices IC Remove/Replacement ReplacementSmall-SignalDiscrete Transistor Removal/ReplacementCircuit Board Foil Repair At IC ConnectionsAt Other Connections TIMING CHART VIDEOSYNC DISASSEMBLY-Set Only for training and service purposesSoft pad on the table Pull up the stand partOnly for training and service purposes Remove the screws1.Pull the front cover upward 3.Put the front face downDISASSEMBLY-Stand In case of Latch #1-1In case of Latch #1 DISASSEMBLY-StandOnly for training and service purposes Hold the stand bodyBLOCK DIAGRAM LIPSMStarACE Line BufferBLOCK DIAGRAM-POWER POWERINVERTER DESCRIPTION OF BLOCK DIAGRAM 2.Power Part1.Video Controller Part 3.MICOM PartLIPS Board Block Diagram 6.Signal collectionPRIMARY Operation description LIPSADJUSTMENT SERVICE OSD Figure 1. Cable ConnectionTROUBLESHOOTING GUIDE 1. NO POWERWaveforms 2. NO RASTER OSD IS NOT DISPLAYED - LIPS 3. NO RASTER OSD IS NOT DISPLAYED - MSTAR Waveforms4. TROUBLE IN DPM Waveforms5. POWER 6. Raster WIRING DIAGRAM Only for training and service purposesLGE Internal Use Only 6631900109AEXPLODED VIEW Only for training and service purposesLGE Internal Use Only EXPLODED VIEW PARTS LIST Ref. NoDescription REPLACEMENT PARTS LIST SAFETY MarkOnly for training and service purposes CAUTION: BEFORE REPLACING ANY OF THESE COMPONENTSOnly for training and service purposes LGE Internal Use OnlyFILTERs TRANSISTOROnly for training and service purposes LGE Internal Use OnlyCAPACITORS TRANSISTORs & ICsOnly for training and service purposes LGE Internal Use OnlyTRANSFORMER SCHEMATIC DIAGRAM 1. SCALEROnly for training and service purposes LGE Internal Use Only2. POWER & WAFER Only for training and service purposesLGE Internal Use Only 3. INVERTER Only for training and service purposesLGE Internal Use Only 4. POWER Only for training and service purposesLGE Internal Use Only Feb P/NO MFL43002807

BLOCK DIAGRAM

Module

MStarACE

LVDS Tx

Line Buffer

Scaler

TSUMx6AL

Intel8032

TMDS Rx

LIPS

Inverter (4 lamps)