Hisense LCD42P69P, LCD47P69P service manual Troubleshooting for Video/S-Video input

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LCD TV Service Manual

7.7 Troubleshooting for Video/S-Video input

No picture on the screen

Check Source work or not	NO

YES

YES

Check connect

NO

YES

Check Cable/ Wires

Check Signal Source

Reconnect

Replace Cable/Wires

NO

Replace main board

Hisense Confidential

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Contents Product Type：LCD42P69P、LCD47P69P Contents Precautions and notices Hisense Confidential Hisense Confidential Hisense Confidential Hisense Confidential Hisense Confidential Hisense Confidential Product Function Specifications Back Cabinet Specifications LCD Panel Spec LCD47P69P Hisense Confidential LCD42P69P： White Balance Factory OSD MenuFactory Option Mode M is only used for factory production Hisense Confidential Get ready for upgrading Software UpgradingHisense Confidential Upgrading with the MtkTool Choose the current BaudRate Hisense Confidential Update with USB directly Hisense Confidential Troubleshooting Troubleshooting for Remote Control Troubleshooting for Function Key TV won’t Power On Troubleshooting for Audio Troubleshooting for TV/VGA/HDMI input Troubleshooting for YPbPr input Troubleshooting for Video/S-Video input Explode View Schematic circuit diagram Page Near IC MT8222P1V1 DDR1 Version +5VTUNER BL-ADJUSTBL-ON/OFF PWCTL1RDQ0 U1RX U1TX Redp INT Vgagnd ORESET# Vgasog Oiri Grnp BlupGPIO11 Gpio Oiri INT ICEAV33VGA GND AV12DRGB DdrvAV12PLL AV12ARGBB AV33DACRDQ0 Rcke MEMDQ1 RDQ1 RDQS0 RDQS1RCAS# RRAS# MEMDQ0U1RX FRESET# SpisckU0RX OSCL0 U0TX OSDA0RX0C RX0CB HDMI-L-HXCeca HDMIPLUGPWR0CVBS3 AV1INCVBS1 CVBS1 CVBS2PBR0INGND Y0IN SCT1RY0INGND PB0IN SCT1GSCT1AURIN SCT1AULOUT SCT1AUROUTSCT1AV CVBS5PWM1 Tvain OSCL0 SCLV50 IftunerCVBS0P +5VTUNER SDAV50MUX1-L Tvain AudloutAudrout MUX1-LGND Vbrout RESC1005L-HX O0P O1P O2P Vbrout BL-ADJUST Ockp PWM0GND BL-ADJUST E0P E1P E2P Eckp E3P E4P Lvdsvdd