Troubleshooting Guide; Check Of The Iic Bus Lines - Panasonic th-50lru70 Service Ma

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:
Caution:
New key will be generated and previous TV programmes recorded in USB HDD will not be viewed. (See USB HDD
Recording)
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.
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 press the [POWER] button on the main unit for 3 seconds to turn off and then turn on
automatically.
DISPLAY Check Ref. No.
H14TUN IC6750/JK6750
H90STBY IC8000
H91MEM2 IC8900
H17LAN IC8000/JK8600
H-FRSC IC6103
H-PRID IC6000
Description
TUNER A-Board
sLD8/STM A-Board
NAND DLASH A-Board
Etherphy A-Board
MPU A-Board
Pro: Idiom A-Board
13
Check Point