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Chapter 4 Troubleshooting
Chapter 4 Troubleshooting
If a problem still remains after applying the suggested remedies, contact your local dealer.
• No-picture problems → See No.1 - No.2.
• Imaging problems → See No.3 - No.11.
• Other problems → See No.12 - No.18.
Problems Possible cause and remedy
1.
No picture
• Power indicator does not light.
• Check whether the power cord is connected correctly. If
the problem persists, turn off the monitor, and then turn it
on again a few minutes later.
• Power indicator is lighting blue.
• Power indicator is lighting yellow.
• Check brightness setting.
• Turn on the PC.
• Switch the input signal with
.
• Operate the mouse or keyboard.
2. The message below appears.
• This message appears when no signal is input.
(This is displayed for about 40 seconds.)
This message appears when the signal is not input
correctly even when the monitor functions properly.
• The message shown left may appear, because some
PCs do not output the signal soon after power-on.
• Check whether the PC is turned on.
• Check whether the signal cable is connected properly.
• Switch the input signal with
.
• The message below shows that the input signal is
out of the specifi ed frequency range. (Such signal
frequency is displayed in red.)
Example:
• Select an appropriate display mode using the graphics
board’s utility software. Refer to the manual of the
graphics board for details.
3. Display position is incorrect.
• Adjust image position so that it is displayed properly
within the display area using the <Position> adjustment.
• If the problem persists, use the graphics board’s utility
software if available to change the display position.
4. Vertical bars appear on the screen or a part of the
image is fl ickering.
• Adjust using <Clock> from <Screen> menu at the
Adjustment menu.
5. Whole screen is fl ickering or blurring.
• Adjust using <Phase>.
6. Characters are blurred. • Adjust using <Smoothing>.
7. Upper part of the screen is distorted as shown
below.
• This is caused when both composite sync (X-OR)
signal and separate vertical sync signal are input
simultaneously. Select either composite signal or
separate signal.