DGM LTV-3211D, User Manual

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Troubleshooting
Before arranging for service, firstly know the status and then check simply as follows:
Problems Check
No picture or sound Check if the power supply is plugged in.
Check if the power switch is in “on” position.
Picture is OK, no sound Check if the volume control is set to the minimum or mute position.
Remote control doesn’t work Check if the power switch is in “on” position.
Check if the batteries are out of use or not connected well.
Make sure that there is no strong light striking the sensor window of
remote control unit.
Check there are no obstacles between the sensor window and remote
control unit.
No TV signal Check if the SOURCE key is not set to TV status.
Check if the antenna is well connected.
Check if you installed the TV correctly.
No external video signal Check if you installed the TV correctly.
Check if the SOURCE key is set to AV position.
Picture lacks color or picture
too dark Check color, brightness and contrast controls are correctly adjusted.
All channels lose color
intermittently Check if the antenna is broken.
Check if the antenna is disconnected.
Check if the antenna is damaged.
Poor reception, loss of color
with certain channels. Check if channels are correctly tuned.