Samsung CS21A530FLKXSV, Service Manual

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Troubleshooting
Samsung Electronics 4-3
3. Screen
Problem Solution
The screen is black and there is no sound.
■ Check if the power cord is properly connected.
■ Turn on the power.
■ Select an AV channel that corresponds to the external device.
Only the screen is blank/it is dark or too bright. Adjust the screen brightness.
The screen is blue/the external channel is not
displayed.
■ Check if the connector is properly installed.
■ Select an AV channel that corresponds to the external device.
The screen overlaps (double/triple).
■ Check if the antenna is properly installed.
■ Adjust the position, angle or direction of the antenna.
The screen is snowy or unclear. The picture quality
gets worse when it is windy
■ Check if the antenna has been bent or moved by the wind.
■ Check the antenna for its lifetime.
(Normally 3 - 5 years, 1-2 years near the coast)
Dotted or semi-dotted lines are displayed on the
screen. Install the antenna as far away from the road as possible.
The screen is black and white.
■ Adjust the color density.
■ Check if the connector is properly installed.
The colors of the screen are odd/strange.
Adjust the color tones.
Unusual lines appear on the screen.
Keep the antenna away from the power cord or connectors if possible.
Unusual lines appear on the screen when watching
or recording to video. Keep the video player as far away from the TV as possible.
4. Sound
Problem Solution
There is no sound.
■ Increase the volume.
■ Press the Mute button.
The sound is very low.
■ Increase the volume.
■ Set the auto volume control to ON.
There is a lot of noise. Keep the antenna away from the power cord or connectors if possible.
The selected language does not appear. Press the Multiplex button to select the TV.