LG Electronics L1733TR, L1933TR service manual Exploded View, LGE Internal Use Only

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Copyright 2007 LG Electronics. Inc. All right reserved.

LGE Internal Use Only

Only for training and service purposes

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Contents Same model for Service READ THE SAFETY PRECAUTIONS IN THIS MANUALCHASSIS NO. LM57B BEFORE SERVICING THE UNITSPECIFICATIONS CONTENTSWARNING FOR THE SAFETY-RELATEDCOMPONENT PRECAUTIONmarked on the schematic diagram and the Leakage Current Hot Check CircuitGeneral Servicing Precautions SERVICING PRECAUTIONSElectrostatically Sensitive ES Devices Replacement IC Remove/ReplacementSmall-SignalDiscrete Transistor Removal/ReplacementAt IC Connections Circuit Board Foil RepairAt Other Connections VIDEO TIMING CHARTSYNC Only for training and service purposes DISASSEMBLY-SetSoft pad on the table Pull up the stand partRemove the screws Only for training and service purposes1.Pull the front cover upward 3.Put the front face downIn case of Latch #1-1 DISASSEMBLY-StandDISASSEMBLY-Stand In case of Latch #1Only for training and service purposes Hold the stand bodyLIPS BLOCK DIAGRAMMStarACE Line BufferPOWER BLOCK DIAGRAM-POWERINVERTER 2.Power Part DESCRIPTION OF BLOCK DIAGRAM1.Video Controller Part 3.MICOM Part6.Signal collection LIPS Board Block DiagramPRIMARY Operation description LIPSADJUSTMENT Figure 1. Cable Connection SERVICE OSD1. NO POWER TROUBLESHOOTING GUIDEWaveforms 2. NO RASTER OSD IS NOT DISPLAYED - LIPS Waveforms 3. NO RASTER OSD IS NOT DISPLAYED - MSTARWaveforms 4. TROUBLE IN DPM 5. POWER 6. Raster Only for training and service purposes WIRING DIAGRAMLGE Internal Use Only 6631900109AOnly for training and service purposes EXPLODED VIEWLGE Internal Use Only Ref. No EXPLODED VIEW PARTS LISTDescription SAFETY Mark REPLACEMENT PARTS LISTOnly for training and service purposes CAUTION: BEFORE REPLACING ANY OF THESE COMPONENTSLGE Internal Use Only Only for training and service purposesFILTERs TRANSISTORLGE Internal Use Only Only for training and service purposesCAPACITORS TRANSISTORs & ICsLGE Internal Use Only Only for training and service purposesTRANSFORMER 1. SCALER SCHEMATIC DIAGRAMOnly for training and service purposes LGE Internal Use OnlyOnly for training and service purposes 2. POWER & WAFERLGE Internal Use Only Only for training and service purposes 3. INVERTERLGE Internal Use Only Only for training and service purposes 4. POWERLGE Internal Use Only P/NO MFL43002807 Feb
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