Chapter 9. Trouble shooting9-1. Simple checkNo picture/ No soundVerify if the television is properly pluggedVerify if the television is properly supplied powerVerify if electricity is available.Blank screenVerify if correct signals are inputPress INPUT button to change signal input to TV inputRestart the television of power supply is interruptedNo soundPress Mute button and verify if Mute mode is set.Switch to otger channel and verify if the same problemhappens.Press VOL+ button to see of he problem can besolved.Poor sound Verufy if sound system is correct .Refer to somechapter for adjust.No picture in some channelVerify if correct channel is selected.Adjust the antenna.Make adjustments by Fine Tune and MANUAL Scan.No color for some channelprogram (black and white)Verify if the same problem exists in other channels.check out of picture and sound system.Refer to relative instructions in the Manual for coloradjust.Spots with some or all picturesVerify if the antennal is correctly connected.Verify if the antennal is in good condition.0DNH¿QHDGMXVWPHQWRIFKDQQHOHorizontal/ vertical bars or pictureshakingCheck for local interference such as an electricalappliance or power tool.Television out of controlDisconnect the television from power supply and 10seconds later, connect the television to the powersupply. If the problem still exists, contact authorizedafter-sales service for technical assistance.47Service ManualModel No.: HL24XK2