ASUS BE239QLB 사용자 가이드

3-15

ASUS BE209/BE229/BE239/BE249/BE24A Series LCD Monitor 

Power  LED is not ON

•  Press the   button to check if the monitor 

is in the ON mode.

•  Check if the power cord is properly 

connected to the monitor and the power 

outlet. 

•  Check if the power switch is ON.

The power LED lights amber and there is 

no screen image 

•  Check if the monitor and the computer are 

in the ON mode.

•  Make sure the signal cable is properly 

connected the monitor and the computer.

•  Inspect the signal cable and make sure 

none of the 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 sized 

properly

•  Adjust the H-Position or V-Position 

settings via OSD.

Screen image bounces or a wave pattern is 

present in the image

•  Make sure the signal cable is properly 

connected to the monitor and the 

computer.

•  Move electrical devices that may cause 

electrical interference.

Screen image has color defects (white does 

not look white)

•  Inspect the signal cable and make sure 

that none of the pins are bent. 

•  Perform All Reset via OSD.

•  Adjust the R/G/B color settings or select 

the Color Temperature via OSD.

Screen image is blurry or fuzzy

•  Adjust the Phase and Clock settings via 

OSD.

No sound or sound is low

•  Ensure that the HDMI/DisplayPort cable is 

properly connected to the monitor and the 

computer.

•  Adjust the volume settings of both your 

monitor and HDMI/DisplayPort device. 

•  Ensure that the computer sound card 

driver is properly installed and activated.