Troubleshooting Guide; Check Of The Iic Bus Lines; Self-Check Indication Only; Self-Check Indication And Forced To Factory Shipment Setting - Panasonic TC-P42S30 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 con-
trol 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 TU4801
AVSW IC3001
STBY IC8000
MEM1 IC8902
MEM2 IC8901
TEMP IC3753
PD5 IC9300
ID
Description Check P.C.B.
PEAKS-sLD2 A-Board
TUNER A-Board
AUDIO/VIDEO SW A-Board
PEAKS-sLD2 (STM) A-Board
PEAKS EEPROM A-Board
STM EEPROM A-Board
TEMP SENSOR A-Board
PD5L A-Board
A-Board
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