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Version - 2/21/2005 37
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Chapter 4 - Maintenance and Troubleshooting
4.1 - Maintenance
Important
1. Make sure that the power cable is removed from the socket before cleaning the
display.
2. Do not use volatile solvent (such as toluene, rosin and alcohol) to clean the display.
Such chemicals may damage the housing, screen glass and remote control, and
cause the paint to peel.
Cleaning the Housing and the Remote Control
1. Use a soft cotton cloth for cleaning.
2. If the housing or remote control is seriously contaminated, use a soft cloth moistened
with diluted neutral cleaner to clean the display. Wring water out of the cloth before
cleaning to prevent water from penetrating into the housing. Wipe the display with a
dry cloth after cleaning.
Cleaning the Screen
1. Use a soft cotton cloth to gently clean the screen.
2. The screen glass is very fragile. Do not scrape it with any sharp object. Do not press
or tap the screen to avoid cracking. When the screen is seriously contaminated, use
a soft cloth moistened with diluted neutral cleaner to clean the display. Wring water
out of the cloth before cleaning to prevent water from penetrating into the housing.
Wipe the display with a dry cloth after cleaning.
4.2 - Troubleshooting Guide
If the display fails or the performance changes dramatically, check the display in accordance with
the following instructions. Remember to check the peripherals to pinpoint the source of the
failure. If the display still fails to perform as expected, contact the dealer for assistance.
Problem Solution
Power cannot be turned on
(power indicator does not light).
Check that both ends of the power cable are plugged into the
socket appropriately.
"No Input Signal" message
appears on the screen.
Check that the signal cable is connected properly.
Check that the power of the relevant peripherals is turned on.
Check that the Input option that has been selected matches
with the input signal.
The remote control does not
function properly.
Check that the polarity of the batteries is correct.
Check that the batteries are not drained (use new batteries).
Check that the remote control is within the operating range.
Check that the remote control is pointed at the remote control
window on the display.
Check that there are not any obstacles between the remote
control and the remote control window.
For more information about the remote control, refer to
Chapter 3.
Flashing spots or stripes
appear on the screen.
Check for possible interference sources such as a car, HV
cable, neon lamp, etc.