松下-TH-42PV30C(GPH6DA)-中文维修手册3[1].pdf

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1、16方框图和线路图16.1.线路图注意事项6716.2.主要集成电路方框图S.R.S.R.S.R.S.R.S.R.S.R.S.R.S.R.C12C22C32SUC1C2C11C21S.R64SS2S.R64SC2SC23D31D32P23P215VVSUSHIGHDHD/VDUR12VVOLTAGES.RSYNCPROCESSOR/D25P255VPROTECTOR64SC20D20DISCHARGESTB7VSS32CONTROLPLASMAAIVSUSP11SS11SSCONTROLON/OFFVDAPROCESSCONTROLSUB-FIELDD27P27SOS15VSUS

2、TAINVOLTAGES.RPULSEPROCESSORSTB5V12VVOLTAGEADDRESSMAINMPUROMRECTIFIER645VRECTIFIERVOLTAGELOW(VE)SS21SUBMPUSDRAMROMVOLTAGESS57PROTECTORS.RPROCESSSUSTAINSUSTAIN64FORMATSDRAMVOLTAGEVOLTAGEPULSEVDHDCONVERTERCONTROLCONTROL24bitRGBINITIALIZEBUSPLASMAAIPROCESSORS.RPULSESTANDBYERASE64SUB-FIELDVOLTAGE

3、POWERPULSE+12VsPROCESSORRECTIFIERFACTORSDRAMP712VVDAA/DSTB5VCONTROLP12SS12STANDBYSTBPSP515VVOLTAGERECTIFIERCONTROLS.RSCAND3D34D3364VOLTAGERECTIFIERRELAYPS.RP30-P33P964MSCACINFANPF2S.R64PFACINHEADPHONEG5PRIMARYLINEPF1CIRCUITFILTERSS58S.R64TAPCING18DG18PF10STANDBYSS31MAINT10TUNERKEYSCANS.R64TBG

4、7DG7CONVERTSUBJGT11VIDEO3MICOMMICOMSS42SS34TUNERGTEXTY/COUTSDCARDS.RDG10JG364EEPROMI/FH11H10H9PCCARDSDSPOWERSWITCHSS3S34H1DG1SDRAMAUDIOMSPOUTAVH4DG4SWITCHRGB/PCGC2MRGBAMPDG3AV1SELECTNR21VAV2GC2SPA10STB5VNR14VWOOFERROUTPA1DG2PA2TUNER30VAV4DGLOUTWOOFERSDRAMDG6PA6PREAMPHROUTSPEAKERDC/DCPA5PA3CON

5、VERTERLOUTSPEAKERPA7PAVDAC41C31C42LEDC4C3KPOWERONGC43C33STANDBYRREMCOMC44K24RECEIVERCATSENSORS.R.S.R.S.R.S.R.S.R.S.R.S.R.S.R.TH-42PV30CTH-42PV30C6816.3.PF电路板方框图HOTCOLDPFTunerPowerSupply!T920DC187V18C972P2PF10TOPA1014V(UNREG)172NCS35UNR_14VD925++D971D920163++PTS4C973C920IC920C928C922C97015NCPO

6、WERCONTROL400V14521V(UNREG)-45P1S1A1UNR_21VD970VccD13NCS1B62UNR_21VStartup+-Latch-stopUVLOUVLOC921comp+comp++compC971127--NCS2AVULVcc(start)Vcc(startupoff)OVP/Vcc(stop)/Vcc(startupon)compStartup118+L921V2S2BR-QVOVPSR92410PeakBurstPeakV1Thermal#CurrentCurrentShutdownLimitLimitR928R927Z/CR9701Z

7、eroCurrentDetectionOnDeadTimerC926SStand-BySoftQdriveVrefRS!IF/B2C914F/B-Restart+TimerR934OnTimeTimerGNDR935C924R9293HOTCOLDR925D922D926R940!IC92141C925R971FEEDBACK32R972C975C974R976R9743R973IC9701ERRORREF_2.5VVOLTAGER9752DET!RL901STAND-BY5V7