Manual Daewoo 21V4M (page 21 of 28) (English)

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Troubleshooting

Sometimes some performance problems can be easily solved by checking seemingly apparent but

often overlooked possibilities. Before asking for service, to check these items could save your time

and money.

SYMPTOM CHECK

No picture or sound. • Check the TV set is plugged in.

• Check the volume, Brightness and Contrast controls are set

to the minimum positions.

Picture is OK, but No Sound • Check the Volume control is set to the mini

mum position.

Sound is OK, but No Picture • Check the Brightness and Contrast controls are set to the

minimum position.

No Colour • Check the Colour control is set to the minimum position.

Excessive noise in picture • Check the Antenna Cable is broken or disconnected or

damaged.

Diagonal stripes appear on • It may be affected by interfering signal.

picture (ex. from nearby amateur radio transmitter or another TV

set.)

• The interference can be reduced to some extent by

adjusting the direction or height of the antenna.

(If the twin lead antenna cable is used, replace it with a

coaxial cable.)

Picture has "Snow" • Check the Antenna cable is broken or disconnected or

damaged.

• Small dot on the screen caused by a weak aerial signal.

Ghost images appear. • Check the Antenna direction has changed after storm or

strong wind etc..

• Ghost images are caused by a signal reflected from a hill or

large building etc..

• The direction or height of the antenna should be chosen

well in order to minimize the ghost images.

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Daewoo 21V4M Manual

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