Panasonic Viera TC-42PX34, Service Manual

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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. Exit
Disconnect the AC cord from wall outlet.
6.1.3. Screen display
6.1.4. Check Point
Confirm the following parts if NG was displayed.
DISPLAY Check Ref. No. Description Check P.C.B.
PEAKS IC8000 PEAKS-sLD2 A-Board
TUN TU4801 TUNER A-Board
AVSW IC3001 AUDIO/VIDEO SW A-Board
STBY IC8000 PEAKS-sLD2 (STM) A-Board
MEM1 IC8902 PEAKS EEPROM A-Board
MEM2 IC8901 STM EEPROM A-Board
TEMP IC3753 TEMP SENSOR A-Board
PD5 IC9300 PD5L A-Board