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Before arranging for service, firstly know the status and then check simply as follows:
Problems
Check
No picture or sound.
Picture is OK,no sound.
Remote control doesn't work.
No TV signal.
No external video signal.
Picture lacks colour or picture
too dark.
Check if the power supply is plugged in.
Check if the power switch is in "on" position.
Check if the volume control is set to the minimum or mute position.
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.
Check if the source button is not set to TV status.
Check if the antenna is well connected.
Check if you installed the TV correctly.
Check if you installed the TV correctly.
Check if the source button is set to AV position.
Check colour, brightness and contrast controls are correctly
adjusted.
Troubleshooting
