Panasonic TC-55AS650U Service Manual

Also see for TC-55AS650U: Owner's manual Ehelp

157 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: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. ExitDisconnect the AC cord from wall outlet or press the [POWER] button on the main unit for 3 seconds to turn off and then turn onautomatically.7.1.3. Screen display7.1.4. Check PointConfirm the following parts if NG was displayed.DISPLAY Check Ref. No. Description Check PointH14TUN IC6750/JK6751 TUNER A-BoardH90STBY IC8000 IC Peaks-LD6 A-BoardH92MEM1 IC8901 EEPROM STM A-BoardH91MEM2 IC8903 eMMc Memory A-BoardH17LAN IC8903 MAC A-BoardH96ID IC8903 DTCP-IP A-BoardH97ID2 IC8903 Dimora, HDCP2,Netflix,WidevineA-BoardH45BT IC8601, IC8000 USB HUB, IC Peaks-LD6,BlueetoothA-BoardBT-DongleH42WiFi IC8601, IC8000 USB HUB, IC Peaks-LD6,WiFiA-BoardWiFi Dongle