User`s guide

English - 18
TROUBLESHOOTING
TROUBLESHOOTING
Check the audio cable are correctly connected to the
computer.
Adjust the volume after checking the sound is muted.
Check the audio system in the computer.
Adjust the volume on the OSD Menu.
Adjust the volume of the sound card in the computer.
Check if the video cable is correctly connected to the
computer and set to the video mode.
Adjust the Saturation or Hue on the OSD Menu in
the video mode.
Adjust the Sharpness on the OSD Menu in the video
mode.
Symptom
No sound.
Low sound.
No video.
Poor color in the
video.
Grainy picture in the
video.
Check
Adjust Clock to set the screen position and adjust
Clock fine until a noise isn’t displayed.
Check if power switch and computer power switch
are in the on position.
Check if the signal cable is correctly connected to
the video card.
Check if the pins of D subconnector are not bent.
Check if the computer is in the power- saving mode.
Check if power switch is in the on position.
Check if the power cord is correctly connected.
Check if the signal cable is suitable to the video card.
Adjust Clock or H&V Center to get the proper
image.
Keep the devices that may cause electrical
interference away from the monitor.
See the FCC information at the front cover of the
manual.
Adjust Contrast and Brightness.
Symptom
Picture is jitterd.
No picture.
POWER LED is not
lit.
Image is unstable.
Image is not
centered, too small
or too large.
Picture bounces or a
wave pattern is
present in the
picture.
Picture is blurred.
Check