8. Before you request for repair
Phenomena below are not necessary mean failure with TV set. Please check
off per following methods before you request for repair.
Phenomena Possible Causes
No picture, no sound
Improper connection with automobile adapter.
Use of unauthorized power supply. Power Switch
is on OFF position.
No image
Whether the correct Channel selected.
Automatically set up the Receiving Channel
again. Any new place is subject to re-setup of
channels.
No sound
Whether the sound is turned to the end or the
Sound System is incorrect. Whether earphone
plugged in. Whether ERASE functions under
too weak signal.
Dark picture
Whether brightness and contrast adjust
correctly;
Whether environment temperature too low.
Unclear or unstable
image
Whether antenna adjusted correctly;
Maybe too weak signal received at the
receiving place.
Superposed image
Whether the antenna is in proper direction;
Maybe received the building or reflected signals
nearby.
Snowstorm
Maybe under wave interference of automobile
motor, train, high voltage line and neon light.
Achromatic or
flashing color
Whether color adjusted well, whether the
decoloration actions under the Colour system
with too weak proper signal.
No car-backing
function
Whether the black AV single line is in loose
connection with the positive power supply of
reversing light. Whether the red connection
head of socket is in poor contact.
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