Troubleshooting Guide; Check Of The Iic Bus Lines - Panasonic TH-P46U30G Service Manual

6 Troubleshooting Guide

Use the self-check function to test the unit.
1. Checking the IIC bus lines
2. Power LED Blinking timing
6.1.

Check of the IIC bus lines

6.1.1. How to access
6.1.1.1. 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.
6.1.1.2. 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 con-
trol for more than 3 seconds.
6.1.2. Screen display
6.1.3. Check Point
Confirm the following parts if NG was displayed.
6.1.4. 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 TU4801
STBY IC8000
MEM1 IC8902
MEM2 IC8901
AVSW IC3001
PD5 IC9300
TEMP IC3753
LAN IC8601
Description
TUNER A-Board
PEAKS-sLD2 (STM) A-Board
PEAKS EEPROM A-Board
STM EEPROM A-Board
AUDIO/VIDEO SW A-Board
PD5L A-Board
TEMP SENSOR A-Board
ETHERPHY A-Board
17
Check P.C.B.