User's Manual

19
Troubleshooting
Before returning your display for service, consult the troubleshooting list below:
Display
Problem Current Status Remedy
No picture Power LED on Using the OSD Menu, adjust
the brightness and contrast to
maximum, or reset them to their
default settings.
Power LED o Ensure the power switch at the
front and rear of the display are set
to ON.
Check if the AC power cord is
properly connected to the AC
adapter and outlet.
Power LED
blinking
Check if the video signal cable
isproperly connected at the back
ofthe display.
Check if power of the video signal
source system is ON.
Abnormal
picture
Oversized,
undersized,
ormissing
display; or
center shi.
Using the Screen Control Menu,
adjust the Phase, Frequency,
Horizontal, and settings in order
to correct the display image.
Wait a few seconds aer initial
sync of video signals, or power
cycle the display.
OSD Menu
error message
“Video format
notsupported”
Ensure that an acceptable video
source is connected. Refer to
the "Technical Specications"
section of this manual for a list
ofacceptable video formats.