Troubleshooting Guide; Check Of The Iic Bus Lines - Panasonic TH-L55WT50M 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
7.1.1.1. Self-check indication only:
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote control
for 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 remote
control for more than 3 seconds.
7.1.2. Screen display
7.1.3. Check Point
Confirm the following parts if NG was displayed.
7.1.4. Exit
Disconnect the AC cord from wall outlet or switch off the power with [ Power ] button on the main unit.
DISPLAY Check Ref. No.
TUN TU6705
STBY IC8000
MEM1 IC8902
MEM2 IC8900
AVSW IC3001
LAN IC8600
ZWEI
ID2
BT IC8000, A21
WiFi IC8000, A20
Description
TUNER A-BOARD
PEAKS-PRO4(STM) A-BOARD
PEAKS EEPROM A-BOARD
NAND FLASH A-BOARD
AV SW A-BOARD
ETHERPHY A-BOARD
ZWEI LCD PANEL
ID2 A-BOARD
BLUETOOTH A-BOARD/BLUETOOTH
WiFi A-BOARD/WiFi
18
Check Point