Check whether the signal setting of your PC matches

4.Troubleshooting

Problems	Possible cause and remedy

• The message below shows that the input signal is out of	• Check whether the signal setting of your PC matches
the specified frequency range. (Such signal frequency is	the resolution and the vertical frequency settings for the
displayed in red.)	monitor (page 11).
Example:	• Reboot the PC.
	• Select an appropriate display mode using the graphics
	board’s utility. Refer to the manual of the graphics board
	for details.
	fD: Dot Clock
	(Displayed only when the digital signal inputs)
	fH: Horizontal Frequency
	fV: Vertical Frequency

3. Display position is incorrect.

• Adjust image position so that it is displayed properly

within the display area using the <Position> adjustment

(page 15).

• If the problem persists, use the graphics board’s utility if

available to change the display position.

4. Screen image displayed is smaller or larger than the

• Adjust the resolution using <Resolution> so that the

actual screen image.

input signal resolution equals the resolution in the

resolution adjustment menu (page 15).

5. Vertical bars appear on the screen or a part of the image

• Adjust using <Clock> (page 14).

is flickering.

6. The characters and images have several vertical bars on

• Adjust the characters and images using the

their right side.

<Signal Filter>.

7. Whole screen is flickering or blurring.

• Adjust using <Phase> (page 14).

8. Characters are blurred.	• Adjust using <Smoothing> (page 19).

9. 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

10.The screen is too bright or too dark.	• Adjust <Brightness>. (The LCD monitor backlight has a
	fixed life span. When the screen becomes dark or begins
	to flicker, contact your local dealer.)

• Check whether the signal setting of your PC matches