Asus CP240, CP220 manual Trouble shooting FAQ, Problem Possible Solution

3.4Trouble shooting (FAQ)

Problem		Possible Solution
	•	Press the	button to check if the monitor is in the
Power LED is not ON		ON mode.
	• Check if the power cord is properly connected to
		the monitor and the power outlet.
	• Check if the monitor and the computer are in the
		ON mode.
	• Make sure the signal cable is properly connected
The power LED lights amber and		the monitor and the computer.
	•	Inspect the signal cable and make sure none of the
there is no screen image		pins are bent.
	• Connect the computer with another available
		monitor to check if the computer is properly
		working.
Screen image is too light or dark	• Adjust the Contrast and Brightness settings via
		OSD.
Screen image is not centered or	•	Press the A	button for two seconds to
		automatically adjust the image.
sized properly	•	Adjust the H-Position or V-Position settings via
		OSD.
	• Make sure the signal cable is properly connected to
Screen image bounces or a wave		the monitor and the computer.
pattern is present in the image	•	Move electrical devices that may cause electrical
		interference.
	• Inspect the signal cable and make sure that none of
Screen image has color defects		the pins are bent.
	• Perform Reset via OSD.
(white does not look white)
	• Adjust the R/G/B color settings or select the Color
		Temperature via OSD.
	•	Press the A	button for two seconds to
Screen image is blurry or fuzzy		automatically adjust the image (for VGA mode
		only).
	• Adjust the Phase and Clock settings via OSD.
	• Make sure the audio cable is properly connected
		to the display
No sound or sound is low	• Adjust the volume settings of both your display and
		computer.
	• Make sure the computer sound card driver is
		properly installed and activated.

3-12 Chapter 3: General Instruction