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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.
21


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