三星等离子组件独立维修方案.pdf

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1、RepairScenarioFTVwithSDIPDPFirstcheckcompletesetFaultSymptom?PowerSupplyNoisworking?PowersupplyisnotworkingCheckifLVDSfromSCAVIONovoltageoutputorSSBboardisOKUseLVDSToolwhenpossibleGotoPowerSupplyCheckOutputofSSB/SCAVIO&repairscenarioNoisOK?WithPhilipsapplicationorPDPassta

2、ndalonecheckSDIrepairScenarioRepairPhilipsapplicationFaultfinding;DisplayfaultScavio=FM242SSBEMG=FTP1.1SSBEMG2004=FTP2.2withLVDSToolSetType?42FD9925/0150PF9956/3742PF9966/37/42PF9936D/3742FD9935/17/93S37PF9946/1250PF9966/12/37/69/42PF994579/93/9842PF9946/12/79/93/9842FD99

3、45/01/12/69/79/9837PF9936/379342PF9976/3742PF9956/12/9342FD9953/17/69C/69S/93S50PF9986/3742FD9936/37SDSDHDSDHDSDFTP2..2FM242FTP1.1LC4.7FTP2.2FTP2..2LC4.7RepairScenario42SDV2RepairScenarioSDV4RepairScenarioSDV3VDS07.12.04Page1NoVoltageoutputPowerSupplyCheckfor42SDV2CheckF8

4、002Operatingvoltagesdon´texistV2VersionsFuse250V/8AConnectsettomains.CheckCN8004/2pinSwitchonOn/Offswitch(vacationswitch)connector220VACLED8003NOStbyison?Stanbysupplyisdefective.YesReplacePSUOn/OffrelayRLY8001/8002acts?Switchonvia1or2Switchfromstandbytoon;1ViaRCwhenPhilip

5、sapplicationisin.CheckProtectionRed2ViaSwitchonJigconnectorwhenPhilipsLED8004applicationisremovedGreenLED´s8001,8002Noareon?SMPSshutsdown?GreenLED8001,8002RedLED8004ison.Yes&RedLEDareoffProtectionCheckStanbyLinepin11LEDonLogicYesonCN8002mustbelow.mainboard?Disconnectmains

6、cordNoswitchonofPSUDisconnectY-mainCN8008OffGotorepairscenarioBlinkingReconnectmains.Switchonvia1or2asstand-aloneOnCheckPowersupplyNoonLogic-Mainboard.3,3Vand5VSMPSisworking?DisconnectmainscordDisconnectX-mainCN8007DatacommunicationfromPhilipsReconnectmains.Switchonvia1or

7、2applicationtoLogicmainsisOK.Continouson,meansnoNodatacommunicationoverLVDSCable.SMPSisDisconnectmainsYesworking?CallSAMorSDMDisconnectVALogicBufferCN8010/CN8011YesReconnectmains.Switchonvia1or2CheckSMPSoutputsVs,Va,Vset,Ve,VscReplaceseeStickerGotorepairscenarioY-Mainboar

8、dasstand-aloneSMPSisworking?ReplaceNoX-MainboardYesIfPowersupplyonLogicmainsisnotOK,changePSURep