25
(VGA Mode)
Problems
Current Status
Remedy
No Picture
LED ON
•
Using OSD, adjust brightness and
contrast to maximum or reset to their
default settings.
LED OFF
•
Check the power switch.
•
Check if AC power cord is properly
connected to the monitor.
LED flashes
•
Check if video signal cable is properly
connected at the back of monitor.
•
Check if the power of computer system
is ON.
Abnormal Picture
Unstable Picture
•
Check if the specification of graphics
adapter and monitor is in compliance
which may be causing the input signal
frequency mismatch.
Display is missing,
center shift, or too
small or too large in
display size
•
Using OSD, adjust RESOLUTION,
CLOCK, CLOCK-PHASE, H-POSITION
and V-POSITION with non-standard
signals.
•
Using OSD, in case of missing full-
screen image, please select other
resolution or other vertical refresh timing.
•
Wait for a few seconds after adjusting
the size of the image before changing
or disconnecting the signal cable or
powering OFF the monitor.
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.
