Daewoo DT-4280 NH - Manual (Page 71)

Before Requesting Service
72
Before Requesting for Service
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• There are empty spots at the top
and the bottom area of the screen.
• Check if the screen size of an image
is wider than 16:9 aspect ratio
(theatre screen size).
• When video screen is wider than
16:9 aspect ratio, you may see dark
areas at the top and the bottom of
the screen.
• The Display makes a snapping
sound.
• Check if the pictures and sound are
normal.
• This sound is produced due to
variations in room temperature.
• This sound does not indicate that the
Display has a problem if the pictures
and sound can be viewed and heard
properly.
• Remote control does not
function properly.
• Check for any obstacle between the
Remote Control and the Display.
• Check for dead batteries and
incorrect battery orientation.
• Check if the Remote Control is the
right one.
• Remove any obstacle between the
Remote Control and the Display.
• Replace batteries and use the correct
polarity (+) or (-) of the batteries.
• Use the correct Remote Control
proper to the model.
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• Screen size is suddenly
changed.
• The screen size of a video image
may not be matched to the size of
the dark initial screen.
• Check by using other video tape.
• There are spots on the screen
or screen rolls.
• Check if your product is affected by
any interference from automobiles,
high-voltage transmission lines, neon
signs or other potential sources.
Before requesting for service, check the following points once again.