创维液晶电视原理与维修

8TT12.1LCDDecedeDE-interlaceScale15AABLCD8TT18TT1TRIDENTSCANCONNERTICSCALERICTRIDENTLCD-TV1024768XGA16777216224FULLCOLOR400Cd/m(nit)50000400:1H:160V:12525ms15.1(3060KHzPCRGB5675HzRF/AV/S-V/YCrCbPALNTSCID/KAC:100~240V50/60HzDC12V2W22.212211221ICNJW1130140NJM1130NJW1130AV/S-VNJM11301130YCrCbNJM1130239VGANJM1130338NJW1130BBETPA15173.5W2TPA1517123456712V891020TPA1517889.2VTPA15173.4V88.8V0VV82V22223222418TT1JS-2DSW/124APALIPALD/KCVBSJ7DPTV-3D184AVVIDEODPTV-3D183S-VIDEOYDPTV-3D185CDPTV-3D196DVDYDPTV-3D186CrDPTV-3D197CbDPTV-3D207CPU8AGCA/DDSPDPTV-3D33DY/CScanConvert()Garma24BitRGBScalerPW135ScalingDPTV-3D188AVAVOUTIC-LM1881CPUVGARGBJ2DPTV-3D272829OSD-RGBQS3257QS3257DPTVTV-GO,RGBM527422611M52742PP135A/DScalingVGA74LS0474LS86CPU26285154CPUVGAU7QS32577912DPTV414243OSDVGAM52742DPTV-3DPP135RGBPP135A/DLCD2LM1881(U35)LM1881(U35)DPTV3TV/VGARGBVGARGBU16Q3257DPTVQ3257Q3257RGBM52742Q32571VGAOSDVGAOSDVGA100220P74LS8674LS86Y=A+B=AB+ABVGA-HS-IN31F3U4A74LS04U14B6U4BU4C5CPUVGA-HS-INU14AC881FC88U4ACPUCPUVGAU14BU4BU4CVGA4DPTV-3D(PanelTV)1DPTV1)U395V2.5VDPTV-3DDPTV3.3V2.5V2U23AS11173.3VDPTVDAC3U22AS11173.3VDPTVADC4U1910843.3VAS1117800mA5ATO-263DPTVSGRAMP1351086LDO3.3VL14P135VGAADCFB37P135L15P1352DPTV-3D157SGRAMMCLK2.5VDPTV3.3V158MCLK560P4700P159MCLK1622.5VDPTV3.3V161MCLK160CLK205181190194199ADC206182191195200ADC31Avdd-BGDACADCAS11173.3V32IRSETD/A560I²COPΠ25303316316414.318MHz1721658CPU65RESETCPUI/OCPUDPTV100msCPUDPTV016DPTVP-PsCPUCPUCPUDPTVP-PsDPTVI²CI²C175P-ALE176DPTV177DPTV178179DPTVI²CDPTVI²C1781790DPTV180DPTV-INTDPTVCPUCPU4ADDRELI²CDPTV3.3V1V5SF5V5VCPUDPTV85V1VCPUIC196S185S188189188189189S188SCVBSOUT189S18310F184186197207YCbCr187198208SYCbCr2022012032042TEST4.7K73INT22383940PIP41DPTVPIXELCLK42TVVGAVGA43VSMPTVAVSVYCbCrDEVGAVGA4451B33P1351522G33P13522TVAVSVYCbCrBit0VGAFLASKBLANKVGA714R33P135363726VMCRTLCD272829DPTVRGB75TVAVSVYCbCrVGA3435DPTV96MemoryClk83M98M110M98M9798SGRAM10110099114BankSGRAMBankASGRAMSGRAMSDRAMSDRAMLCDDPTVCRTLCDCRTBU2U3SM84L512K32BL-6DPTV-3DSGRAM5PP135PP135TridentScaler1123135M8BitA/D342D5FrameBnpfer;68/6BitTFTPanel781280102475Hz9256BGA82223P135SOGCPUP135RGBP135ADCVTOPVBOTVBOT=0.8VTOP=VBOT+1.0V=1.8VVGARGB0.7VP135ADCVGAP135M52742RTOPRMIDRBOTGTOPGMIDGBOTBTOPBMIDBBIT1FP13524Bit25HBit70122393LCDP135TTLLCD24BitRGBDataClockDC,DataEnable(DE),Vs,Hs3BBit0P1351Pixel/Clock21Pixel/Clock1Pixel/Clock21Pixel/Clock48BitRGBHVClkDEClkEMI(ElectorMagneticInterference)PanelnPixel/nPixels13n-1PixelsPixels24nPixelsP135RoutoGoutoBoutoPanelPixels/Clock4PLLP135P135PLLClkLCDCLKCLKP1351280102475Hz5DATA-SSIOENSRDPP1355P135SCLKSWRPP1358BitCPU6P135P135PWMCPUPWMP135LCDP135RESET-BP1353.3VDLGI-EN/CALXTAL-INXTAL-OUTVCLKICLKSIOEN,DATA-S,SCLK,SRDP,SWRPSCANMODE,SCANEN10K38BitPanelRGBDCLKPanelCLKOSD-PixHSY-OPanelVSY-OPanelOSD-VsP135-INTDEPanelOSD-HsCLK-ADCOP135CLKVGAHVDPTVVGAOSD10OSD-RINOSD-GINOSD-BINOSDRGBVGAOSDDPTVVGAOverlayP135RGBVGAOSDHSINVSIN7J612V-ON-OFF12V3BL-ON-OFFCPUI/O5V0V12V5CPUPWMR52C93DC0V5V0V1DC/DCDC/DCAIC1578+AP443512V5V90K280KAIC1578PWMAP4435PMOSFET224224DC/DC2AIC1578120012V112PWM71%225K3ShutDown5VCPU4R1R241.22VVout=1.22(R1+R2)/R2R147KR215K5V56PWM780.051A3AP4435PUgs=0Ugs0PAIC157860VAP443547H6DRI12VMOSMOSRB051L-4040VAP4435Ugs=-10VRds=20mUgs=-4.5VRds=35mMOSAIC1578AP443512V5VCPU5VCPUAP44354CPUCPU5VAP443540VCPU0VAP44354CPUPWRCNTL74SL0412VU11PWRCNTL0VU1185VQ1U21AP44350V12VPWRCNTL5VU110VQ1U21AP443511VQ1Ugs=-4.5VRdsUgs=-10VCPUKS88C4504KS88C45048bit2-5,I/OSAM871040A/D4KPWM8bitI/O121KS88C45042252KS88C4504121PM(ProgramMemory)2DM(DateMemory)128K64K64KROMPMPMDMDM133RDRD27C020OE4Write5VLD(VoltageLevelDetector)CPU5V53.5VCPU5VCPU67MaitCPU6RDWR8PWRCNTL91011CPUCPUCPU1213141510MHzCPU4MHz25MHz16EAFlash5V0V17TOGGLE18VGAOVLVGAVGARGBOSDRGB19CPUVcc1813150ms1813CPU20HVSELHVTV/AV/SV/YCbCrP135HVDPTVVGAP135VGA74HC4052(U9)2122VBRIPWM2324253940CPU64K256K74HC244S0S1P15P1674HC244A16A1774HC24426POSVSVGA1427WriteProtect24C1624C1624C1628POSHSVGA29SYNCSEPARATORLM1881CPU30PRSTDPTVDPTVDPTV31P135RSTCPUPP13532BLONOFF5V0V0V33LCDPOWERCONTOL5V343635REMOTEPhiliphRc5363736DPTVINT37P135INTDPTVP135CPU4145CPUP135546474849CPUA/D51VGA525354VGA5556SCLSDANJW113024C16M527425764D0~D76580A0~A1521664KU10QS3861BEBE5BEBEU13ATF16V8BPLD(ProgrammableLogicDevice),IC100202000VU7U162.38TT115LCDVGA80060010247686404801024768640480P135P13515800600VGA800600P135800600VGA800600P1358TT1CPUVGACPUVGACPUCPU74LS86OK!800600H1024768VGACPUFlash27C020PanelHVDECLKPanelP135CPUP135CPUP135DPTVPanelHVDECLKDPTV8Bit16CPU5VKEY1OK!3cmR82R83VsHsPanelU974HC4052313VsHsU10QS3861U10P135HsVsQS38615VIN414845.75MHz24C16CPU24C163V5VICNJW11309V7809FB704APanelRGBHVDECLKPanelPanelPanelPanel5VL21VGATVVGAU16QS3257U24M52742M52742OK!1734P135R290P135DPTVDPTVRGBVGACRTLCDDPTVP135J6112V5ON+5V0VJ65R52/1KCPU-KS88C450422CPU22+5VR52/1K+5V0V+5VCPUCPU-KS88C450412553CPUY2-10M190VICQ3-DS1813Q3-DS18130VQ3-DS1813OSDJ27LVDSU15-PW113108VS109HS106DCLKRPHRPIRPF?PGRPDRPE47RGBLVDSU20-DS90C385U201926+3.3V32ON/OFFU20,,,Pleasewait18:,CPU,,SCL3.5V,SDA0.6V,IC,U202TDA74402122,,,FB20012V,5V,FB2005V,12VU804(APX1117-5V)IC,U80412V,5VC827FB200,U804.19