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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.
Problems
No Picture
Abnormal Picture
Current Status
LED ON
LED OFF
LED Blinking
Unstable Picture
Display is missing, center shift,
or too small or too large in
display size
AMM215MWTD 25
Remedy
· Using OSD, adjust brightness and
contrast to maximum or reset to their
default settings.
· Check the Rocker switch and Power
switch.
· Check if AC power cord is properly
connected to the AC adapter.
· Check if video signal cable is properly
connected at the back of monitor.
· Check if the power to computer system
is ON.
· Check if the specification of graphics
adapter and monitor is in compliance
which may be causing the input signal
frequency mismatch.
· Must wait for a few seconds after
adjusting the size of the image before
changing or disconnecting the signal or
powering OFF the monitor.
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