30
5
5
TROUBLESHOOTING
Before calling MITSUBISHI 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 Chapter 6 and 7.
LOCATION
Contrast and brightness controls.
Power switch.
AC power cord disconnected.
Signal cable disconected.
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 in dis-
agreement.
CGA MODE is not available.
MDA MODE is not available.
EGA MODE is not available.
BNC cables are misconnected.
(Green and composit sync. connection is
reversed)
Push the RESET for a standard signal.
Adjust H-SIZE, V-SIZE, H-PHASE, and
V-POSITION with non-standard signals.
Make sure you wait a few second after
adjusting the size of the image before
changing or disconnecting the signal or
powering OFF the monitor.
BNC cables are misconnected.
Input video signal level select is not at
the appropriate position for your grap-
hics adapter output.(0.7V or 1.0Vp-p)
ITEMS TO CHECK
PROBLEM
LED
On
LED
Off
LED
Blinking
Display is not
stable
Display is dark
or too bright
No green
color with
BNC
Abnormal
picture
Un-stable
picture
Front (Adjust to the
maximum brightness
or push the reset
button)
Front
Rear
Rear
Check the graphics
adapter and cables
Computer
Check the power
management
function.(see P27)
Rear
Check the specifica-
tion of graphics
adapter and monitor
Rear
Front (OSD)
Front (OSD)
Rear
Front (OSD)
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No
picture
Display is missing,
center shifts, or
too small or too
large of a display
size