Huawei Tecal RH5485 Problem Determination And Service Manual page 59

Tecal RH5485 Server
Problem Determination and Service Guide
The monitor works
when you turn on
the server, but the
screen goes blank
when
some
programs.
The monitor has
screen jitter, or the
screen
wavy, unreadable,
rolling,
distorted.
Wrong characters
appear
screen.
Issue 02 (2011-05-25)
1. Make sure that:

The application program is not setting a display mode that is
higher than the capability of the monitor.

You installed the necessary device drivers for the application.
you start
application 2. Run video diagnostics.

If the server passes the video diagnostics, the video is good; see
"Solving undetermined problems" for information about solving
undetermined problems.

If the server fails the video diagnostics, replace the I/O-board
shuttle.
1. If the monitor self-tests show that the monitor is working correctly,
consider the location of the monitor. Magnetic fields around other
image is devices (such as transformers, appliances, fluorescent lights, and other
monitors) can cause screen jitter or wavy, unreadable, rolling, or
or distorted screen images. If this happens, turn off the monitor.
Attention: Moving a color monitor while it is turned on might cause
screen
discoloration. Move the device and the monitor at least 305 mm (12 in.)
apart, and turn on the monitor.
Notes:
a. To prevent diskette drive read/write errors, make sure that the
distance between the monitor and any external diskette drive is at least
76 mm (3 in.).
b. Non-HUAWEI monitor cables might cause unpredictable
problems.
2. Reseat the monitor cable
3. Replace the following components one at a time, in the order shown,
restarting the server each time:
a. Monitor cable
b. Video adapter (if one is installed)
c. Monitor
d. Replace the I/O-board shuttle.
1. If the wrong language is displayed, update the server firmware with
on the the correct language.
2. Reseat the monitor cable.
3. Replace the following components one at a time, in the order shown,
restarting the server each time:
a. Monitor
b. Replace the I/O-board shuttle.
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3 Diagnostics
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