Akai PDP4249G, Service Manual, Page: 22 / 22

TROUBLE SHOOTINGFLOW CHART
In the even of problems with the display, check the following explanations before
contacting your dealer for servicing.
P roblem A c t io n
Pow er does not turn ON .
Check whether the power plug is securely inserted
into the receptacle.
R em ote control does not function properly .
Check for incorrect battery orientation.
Check for dead batteries.
Check for distance from the display.
Check whether you are pointing the remote control
transmitter properly at the display's receiver.
Check for any obstacle between the remote control
and display.
T he display m akes a snapping sound .
This sound is produced when the cabinet expands
or contract due to variations in temperature.
This sound does not indicated that the display
has a problem.
There are spots on the screen .
Check whether your AV equipment is affected by
interference from automobiles, trains,
high-voltage transmission lines, neon signs or
other potential sources of interference.
D egraded colour/tints.
Check whether a ll picture adjustment have been
properly made.
Im proper screen position/size
Check whether screen position and size have been
properly adjusted.
If "O ut of range" appears, the display is
receiving a signal w hose picture or signal
cannotbe reproduced by the display .
Input proper signals.
Make sure that the vertical frequency of the input
signal is 85 Hz or less for SVGA, 75 Hz or less for
XVGA / SXGA, 60 Hz or less for UXGA.
T he screen turns to black and w hite.
Input proper signals.
Make sure that the vertical frequency of the input
signal is 85 Hz or less for SVGA, 75 Hz or less for
XVGA / SXGA, 60 Hz or less for UXGA.
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