Acer A231H User Manual page 21

(DVI Mode)
Problems Current Status Remedy
LED ON
LED OFF
No Picture
LED displays
amber color
Abnormal No sound, or
Sound sound level is
(Only Audio- too low
Input model)
(Optional)
· Using OSD, adjust brightness and
contrast to maximum or reset to their
default settings.
· Check the power switch.
· Check if AC power cord is properly
connected to the monitor.
· 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.
· Check if the volume setup of the host
PC is in minimum position and try to
raise the volume level.
EN-20