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TROUBLESHOOTING FOR PC
Symptoms That Appear to be Failures
Make the checkes suggested below dpending on the symptoms observed. If the symptoms remain uncorrected, contact your dealer.
CAUTION
Customer servicing can be hazardous.
• No picture with the power-indicating lamp
off.
• The message “No Sync. Signal” or
“Power Save” is displayed.
• No picture, with the power indicating
lamp lit orange.
• The message “Invalid Scan Freq.” is
displayed.
• The power indicating lamp is lit normally
but no picture displays.
• The display image appears flowing
slantwise.
• Text displayed across the screen appears
vertically streaked, with the characters in
vertical columns blurred.
• Text displayed across the screen appears
blurred.
• A fine pattern flickers when displayed on
the screen.
• The remote control does not work.
• Check the way the power cable is connected.
• Press the power switch.
No sync signal is detected.
• Check the way the signal cable is connected.
• Make sure that the switch of the computer, imaging
equipment, etc., is turned on.
• Make sure the computer is not in the power-save mode.
• Check to see if the input selection matches the connection
terminal.
An input signal is not received normally.
• Check to see if the input signal matches the monitor
specifications.
• Check the way the signal cable is connected.
• Check the contrast and brightness settings (adjust them for
higher contrast and brightness).
• Check the way the signal cable is connected.
• Adjust the dot clock frequency and phase. (Adjust the dot
clock frequency first, the dot clock phase next.)
(RGB input)
• Adjust the dot clock phase for the clearest viewing.
(RGB input)
• Check to see if the batteries are loaded in the remote control
in opposite direction.
• Check to see if the batteries in the remote control are OK.
• Check if the setting of remote control ID no. is correct.
Symptom
Point to check
See page
! No Sync. Signal
! Invalid Scan Freq.
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27
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36
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015_PDM-5520_U_E
12/13/04, 9:24 AM
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