10
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
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.
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
control for more than 3 seconds.
6.1.2.
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.
6.1.3.
Screen display
6.1.4.
Check Point
Confirm the following parts if NG was displayed.
DISPLAY
Check Ref. No.
Description
Check Point
TUN
IC6750
TUNER
A-Board
EEPROM
IC8902
EEPROM
A-Board
