Troubleshooting Guide; Check Of The Iic Bus Lines - Panasonic TC-P42X3 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.
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.
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.
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Self-check indication only:
Self-check indication and forced to factory shipment setting:
DISPLAY
PEAKS
TUN
AVSW
STBY
MEM1
MEM2
TEMP
PD5
ID
manuals search engine
Check Ref. No. Description
IC8000 PEAKS-sLD2
TU4801 TUNER
IC3001 AUDIO/VIDEO SW
IC8000 PEAKS-sLD2 (STM)
IC8902 PEAKS EEPROM
IC8901 STM EEPROM
IC3753 TEMP SENSOR
IC9300 PD5L
17
Check P.C.B.
A-Board
A-Board
A-Board
A-Board
A-Board
A-Board
A-Board
A-Board
A-Board