30
General
Troubleshooting
SYMPTOMS
CHECKS
PICTURE
SOUND
Snowy Picture
Noisy Sound
Aerial Location, Direction or Connec-
tion
Multiple Images
Normal Sound
OK
Aerial Location, Direction or Connec-
tion
Interference
Noisy Sound
Electrical appliances.
Cars / Motorcycles.
Fluorescent lights.
Normal Picture
No Sound
?
Volume level.
Sound mute switched on.
No Picture
No Sound
?
TV set to AV mode.
Not plugged into A.C. outlet.
Not switched on.
Picture / Sound controls set at mini-
mum levels.
Check if in stand-by mode.
No Colour
Normal Sound
OK
Colour controls set at minimum levels.
Poor or Distort-
ed Picture
Weak or No Sound
?
Retune Channels.
Coloured
Patches
Normal Sound
OK
Magnetic interference from unshielded
equipment.
Receiver moved while Switched ON,
switch TV off using ON/OFF switch for
30 minutes.
Normal Picture
Weak or Distorted
Sound
Sound reception may have deterio-
rated.
Switching NICAM setting to off can
improve reception.