17. Troubleshooting
29
Problem
Possible Solution
Unit cannot be operated
• External influences such as lightning or static electricity may
cause improper operation. In this case, operate the unit after
first turning on the power of the LED TV and the AVC
• System, or unplug the AC cord for 1 to 2 minutes, then
replug again.
Power is cut off suddenly
• Is the sleep timer set in advance?
• Is there no signal in PC mode or HDMI mode?
• The internal temperature of the unit has increased. Remove
any objects blocking the vent or clean as necessary.
No CATV reception (or no
reception above CH13)
• Is the AIR/CABLE option set correctly? Please set the AIR/
CABLE option to CABLE referring to the user guide.
• CATV is connected improperly or not connected; please
check all the CATV connections.
• The cable TV service is interrupted; please contact your
cable operator.
Picture is cut off/with sidebar
screen
• Is the image positioned correctly?
• Are screen mode adjustments such as picture size set
correctly?
• Press WIDE button repeatedly on the remote control to see if
you can get the picture you prefer.
