Troubleshooting Guide; Check Of The Iic Bus Lines - Panasonic TC-L55WT50 Service Manual

7 Troubleshooting Guide

Use the self-check function to test the unit.
1. Checking the IIC bus lines
2. Power LED Blinking timing
7.1.

Check of the IIC bus lines

7.1.1. How to access
Self-check indication only:
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote control
for more than 3 seconds.
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 remote
control for more than 3 seconds.
7.1.2. Exit
Disconnect the AC cord from wall outlet.
7.1.3. Screen display
7.1.4. Check Point
Confirm the following parts if NG was displayed.
DISPLAY Check Ref. No.
PEAKS IC8000
TUN TU6706
AVSW IC3001
STBY IC8000
MEM1 IC8902
MEM2 IC8900
ZWEI
ID
BT IC8000,A21
WiFi IC8000,A20
Description Check Point
PEAKS A-Board
TUNER A-Board
AV SWITCH A-Board
PEAKS(STM) A-Board
PEAKS EEPROM A-Board
NAND FLASH A-Board
ZWEI LCD PANEL
ID A-Board
Bluetooth A-Board/Bluetooth
WiFi A-Board/WiFi
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