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

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