Troubleshooting - Mitsubishi 73 User Manual

5
5

TROUBLESHOOTING

PROBLEM
LED On
•
Contrast and brightness controls
(Green)
• Power switch
LED Off
• AC power cord disconnected
• Signal cable disconnected
LED On
No
• Computer power switch
(Orange)
picture
• Power management function is active.
• Power switch
LED Blinking
(Orange)
Due to fine dusts existing in the inside of CRT, a discharge may occur at the CRT. When the
discharge occur, the monitor may turn off automatically. This is by an internal protection circuit
operated and it is to avoid electrical components broken.
•
Press "-" and "+" button together, to restore to the factory
preset.
Display is miss-
•
Adjust Horizontal size, Vertical size, Horizontal position,
ing, center shifts,
and Vertical position with non - standard signals.
or too small or too
•
Monitor may not be able to get full-screen image depend on
large of a display
signal. In this case, please select other resolution, or other
size
vertical refresh timing.
• Make sure you wait a few seconds after adjusting the size
of the image before changing or disconnecting the signal.
•
Thin vertical black lines on one or both sides of the
screen. This minor condition is caused by grille element
Black vertical
overlap which can occur during shipping.
lines are visible
•
Position an open white window over the affected area of
on the screen.
the screen and maximize the brightness and contrast
controls. This will cause localized heating of the overlap
which will clear in a few minutes. Be sure to readjust the
brightness and contrast controls back to the normal
viewing levels after this procedure.
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 Section 6. SPECIFICA-
TIONS.
ITEMS TO CHECK
- 9 -
LOCATION
• Front (OSD)
• Front
Rear
•
• Rear
• Computer
• Press any key on the keyboard
or move the mouse.
• Front
•
Front (OSD)
• Front (OSD)