Panasonic TX-P50VT50E Service Manual

Also see for TX-P50VT50J: Operating instruction

217 Troubleshooting GuideUse the self-check function to test the unit.1. Checking the IIC bus lines2. Power LED Blinking timing7.1. Check of the IIC bus lines7.1.1. How to access7.1.1.1. Self-check indication only:Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote controlfor more than 3 seconds.7.1.1.2. Self-check indication and forced to factory shipment setting:Caution:New key will be generated and previous TV programmes recorded in USB HDD will not be viewed. (See USB HDDRecording)Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [MENU] button on the remotecontrol for more than 3 seconds.7.1.2. Screen display7.1.3. Check PointConfirm the following parts if NG was displayed.7.1.4. ExitDisconnect the AC cord from wall outlet or switch off the power with [ Power ] button on the main unit.DISPLAY Check Ref. No. Description Check PointTUN TU6702 TUNER A-BOARDSTBY IC8000 PEAKS-PRO4(STM) A-BOARDMEM1 IC8902 PEAKS EEPROM A-BOARDMEM2 IC8900 NAND FLASH A-BOARDAVSW IC3000 AVSW A-BOARDPANEL IC9300 PD6H A-BOARDTEMP IC2001 TEMP SENSOR A-BOARDLAN IC8650 ETHERPHY A-BOARDSAT-TU TU6702 SAT-TUNER A-BOARDID ID A-BOARDID2 ID2 A-BOARDBT IC8000, A50 BLUETOOTH A-BOARD/BLUETOOTHWiFi IC8000, JK8605 WiFi A-BOARD/WiFi