FHD552-X LCD Panel Service Manual
13
020-000757-01 Rev. 1 (09-2014)
Maintenance and
Troubleshooting
Maintenance
The FHD552-X LCD panel does not require any routine maintenance. There are no user-serviceable
or -replaceable parts. Unless you are a qualified, factory-trained technician, do not attempt to
repair or replace any system component yourself. You will void the product warranty if you do
so.
Troubleshooting
The table below provides some general guidelines for troubleshooting problems you may encounter
with your display. If the suggested solutions fail to resolve the problem or if you encounter an issue
not described here, please contact your dealer.
Symptom
Possible Cause(s)
Solution
The display does not
turn on.
• The display is not plugged in or the AC
outlet is not active.
• The main power switch is off.
• The remote control batteries have run
out.
• Ensure that the display is plugged in
and that the AC outlet is active.
• Set the main power switch to the on
position.
• Replace the batteries.
The display is on and
menus appear, but there
is no picture.
• Incorrect source selection.
• Source component is not turned on.
• Source component is connected
incorrectly or not at all.
• Select the correct source.
• Turn on the source component.
• Check connections from the source
component to the display.
The remote control does
not work.
• The remote control batteries have run
out.
• The buttons are locked.
• IR extender is not connected.
• Replace the batteries.
• Unlock the buttons by pressing ENTER,
ENTER, EXIT, EXIT, ENTER and EXIT,
in sequence.
• Verify that the IR extender cable is
correctly connected.
Image geometry is
incorrect.
• Incorrect aspect ratio selection.
• Select a different aspect ratio.
The display is jittery or
unstable.
• Poor-quality or improperly connected
source.
• The horizontal or vertical scan
frequency of the input signal may be out
of range for the display.
• Ensure that the source is properly
connected and of adequate quality for
detection.
• Correct at the source.
