Troubleshooting

LD 500/500V User Manual

This LCD monitor has been pre-configured using factory standard VGA timings. Due to the output timing differences among various VGA cards in the market, users may initially experience an unstable or unclear display whenever a new display mode or new VGA card is selected.

Important:

This LCD monitor supports multiple VGA modes.

Refer to the standard Timing Table for a listing of modes supported by this LCD monitor.

Problem	Points to check with possible solutions
No power	Make sure the power button is ON
	Make sure the power cord is firmly connected to the back
	of the monitor and to a power outlet.
Power on but no screen	Make sure the signal cable supplied with the monitor is
image	fully inserted into the video output port on the back of the
	computer. If the other end of the signal cable is not
	attached permanently to the monitor, tightly secure it to
	the monitor.
	Adjust brightness and contrast.
No signal Input	Check that the PC is turned ON
	Check that the signal cable is properly connected to the
	graphics board or PC.
	Check that the graphics board is correctly inserted in the
	PC.
Out of range error	Use the graphics board’s utility software to change the
message appears	frequency setting. (Refer to the manual for the graphics
	board.)
	For Windows 95 users (OSR 2.0 or newer) or Windows 98,
	restart the PC in a safe mode and change the frequency in
	the “Display” setting for the PC.
Vertical bars of distortion	Make adjustments to the “Image”, “Clock” setting in the
appear	OSD menu.
Horizontal bars of	Make adjustments to the “Image”, “Phase” setting in the
distortion appear.	OSD menu.
The screen has defective	This is due to the characteristics of the panel itself, not
pixels (e.g. slightly light or	the LCD monitor.
dark)
Incorrect display of colors	If any colors (red, green, or blue) are missing, check that
	the signal cable is firmly connected. Damaged pins in the
	cable connector may also result in a faulty connection.

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