Acer ConceptD CM2 User Manual - Page 31

Troubleshooting

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TROUBLESHOOTING Before sending your LCD monitor for servicing, please check the troubleshooting list below to see if you can self-diagnose the problem. (HDMI/DP Mode) Problems No Picture Abnormal Sound (Only Audio-Input model) (Optional) Current Status Remedy Amber  Using OSD, adjust brightness and contrast to maximum or reset to their default settings.  Check the power switch. Off  Check if AC power cord is properly connected to the monitor. Blinking amber  Check if video signal cable is properly connected at the back of monitor.  Check if the power of computer system is ON.  Check the audio cable with the host PC is connected. No sound, or sound level  Check if the volume setup of the is too low host PC is in minimum position and try to raise the volume level. EN-21

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EN-21
TROUBLESHOOTING
Before sending your LCD monitor for servicing, please check the trouble-
shooting list below to see if you can self-diagnose the problem.
(HDMI/DP Mode)
Problems
Current Status
Remedy
No Picture
Amber
Using OSD, adjust brightness
and contrast to maximum or
reset to their default settings.
Off
Check the power switch.
Check if AC power cord is
properly connected to the
monitor.
Blinking amber
Check if video signal cable is
properly connected at the back
of monitor.
Check if the power of computer
system is ON.
Abnormal Sound
(Only Audio-Input
model)
(Optional)
No sound, or sound level
is too low
Check the audio cable with the
host PC is connected.
Check if the volume setup of the
host PC is in minimum position
and try to raise the volume
level.