14
TROUBLESHOOTING
Sometimes some performance problems can easily be solved by checking seemingly
apparent but often overlooked possibilities. Before asking for service, to checking 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 discon
nected 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 ghost images.
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