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5
5 TROUBLESHOOTING
Before calling your Authorized Product Support, please check that the items below are properly
connected or set.
In case of using a non-standard signal, please check the pin assignments and the signal timing of your
computer with the specification outlined in SPECIFICATION 6 and APPENDIX 7.
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Contrast and brightness controls.
Power switch.
AC power cord disconnected.
Signal cable disconnected.
BNC cables are misconnected or the green
cable is disconnected.
Computer power switch.
Power management function is active.
BNC cables are misconnected.
Input signal frequency range is disagreement.
CGA MODE is not available.
MDA MODE is not available.
EGA MODE is not available.
BNC cables are misconnected.
(Green and composite sync. connection is
reversed)
Adjust H.SIZE, V.SIZE, H.PHASE, and
V.POSITION with non-standard signals
Monitor may not be able to get full-screen image
depend on signal. In this case, please select other
resolution, or other vertical refresh timing.
Make sure you wait a few seconds after adjusting
the size of the image before changing or discon-
necting the signal or powering OFF the monitor.
BNC cables are misconnected.
Input video signal level select is not at the
appropriate position for your graphics adapter
output.(0.7V or 1.0Vp-p)
PROBLEM
Front (Adjust to the
maximum brightness or
push the reset button)
Front
Rear
Rear
Check the graphics
adapter and cables
Computer
Check the power manage-
ment function. (see P23)
Rear
Check the specification of
graphics adapter and
monitor
Rear
Front (OSD)
Front (OSD)
Rear
Front (OSD)
LOCATION
ITEMS TO CHECK
No
picture
Display
is missing,
center shifts, or
too small or too
large of a display
size
LED
On-Green
LED
Off
LED
On-Amber
Display is not stable
No green
color with
BNC
Un-stable
picture
Abnormal
picture
Display is dark
or too bright