IBM HC10 Service Guide - Page 96

Video, problems, Solving, undetermined

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Video problems To check for video problems, complete the following steps until the problem is solved: 1. Make sure that: v Both the blade workstation and the monitor are turned on, and that the monitor brightness and contrast controls are correctly adjusted. v The keyboard/video/mouse select button LED on the front of the blade workstation is lit, indicating that the blade workstation is connected to the shared BladeCenter monitor. v The video cable is securely connected to the BladeCenter management-module. Non-IBM monitor cables might cause unpredictable problems. v The monitor works with another blade workstation. v Some IBM monitors have their own self-tests. If you suspect a problem with the monitor, see the information that comes with the monitor for instructions for adjusting and testing the monitor. If the monitor self-tests show that the monitor is working correctly, consider the location of the monitor. Magnetic fields around other devices (such as transformers, appliances, fluorescent lights, and other monitors) can cause screen jitter or wavy, unreadable, rolling, 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. Turn on the monitor. To prevent diskette drive read/write errors, make sure that the distance between the monitor and any diskette drive is at least 76 mm (3 in.). 2. Check for correct management-module operation (see the documentation for your BladeCenter unit). Note: Some BladeCenter unit types have several management-module components that might need to be tested or replaced (see the Installation Guide for your management module for more information). 3. Replace the monitor cable, if applicable. 4. Replace the monitor. 5. Replace the management module (see the documentation for your BladeCenter unit). If these steps do not resolve the problem, it is likely a problem with the blade workstation. See "Monitor or video problems" on page 60. Solving undetermined problems Note: When you are diagnosing a problem in the blade workstation, you must determine whether the problem is in the blade workstation or in the BladeCenter unit. v If all of the blade workstations have the same symptom, the problem is probably in the BladeCenter unit. For more information, see the Hardware Maintenance Manual and Troubleshooting Guide or Problem Determination and Service Guide for your BladeCenter unit. v If the BladeCenter unit contains more than one blade workstation and only one of the blade workstations has the problem, troubleshoot the blade workstation that has the problem. 80 BladeCenter HC10 Type 7996: Problem Determination and Service Guide

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Video
problems
To
check
for
video
problems,
complete
the
following
steps
until
the
problem
is
solved:
1.
Make
sure
that:
v
Both
the
blade
workstation
and
the
monitor
are
turned
on,
and
that
the
monitor
brightness
and
contrast
controls
are
correctly
adjusted.
v
The
keyboard/video/mouse
select
button
LED
on
the
front
of
the
blade
workstation
is
lit,
indicating
that
the
blade
workstation
is
connected
to
the
shared
BladeCenter
monitor.
v
The
video
cable
is
securely
connected
to
the
BladeCenter
management-module.
Non-IBM
monitor
cables
might
cause
unpredictable
problems.
v
The
monitor
works
with
another
blade
workstation.
v
Some
IBM
monitors
have
their
own
self-tests.
If
you
suspect
a
problem
with
the
monitor,
see
the
information
that
comes
with
the
monitor
for
instructions
for
adjusting
and
testing
the
monitor.
If
the
monitor
self-tests
show
that
the
monitor
is
working
correctly,
consider
the
location
of
the
monitor.
Magnetic
fields
around
other
devices
(such
as
transformers,
appliances,
fluorescent
lights,
and
other
monitors)
can
cause
screen
jitter
or
wavy,
unreadable,
rolling,
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.
Turn
on
the
monitor.
To
prevent
diskette
drive
read/write
errors,
make
sure
that
the
distance
between
the
monitor
and
any
diskette
drive
is
at
least
76
mm
(3
in.).
2.
Check
for
correct
management-module
operation
(see
the
documentation
for
your
BladeCenter
unit).
Note:
Some
BladeCenter
unit
types
have
several
management-module
components
that
might
need
to
be
tested
or
replaced
(see
the
Installation
Guide
for
your
management
module
for
more
information).
3.
Replace
the
monitor
cable,
if
applicable.
4.
Replace
the
monitor.
5.
Replace
the
management
module
(see
the
documentation
for
your
BladeCenter
unit).
If
these
steps
do
not
resolve
the
problem,
it
is
likely
a
problem
with
the
blade
workstation.
See
“Monitor
or
video
problems”
on
page
60.
Solving
undetermined
problems
Note:
When
you
are
diagnosing
a
problem
in
the
blade
workstation,
you
must
determine
whether
the
problem
is
in
the
blade
workstation
or
in
the
BladeCenter
unit.
v
If
all
of
the
blade
workstations
have
the
same
symptom,
the
problem
is
probably
in
the
BladeCenter
unit.
For
more
information,
see
the
Hardware
Maintenance
Manual
and
Troubleshooting
Guide
or
Problem
Determination
and
Service
Guide
for
your
BladeCenter
unit.
v
If
the
BladeCenter
unit
contains
more
than
one
blade
workstation
and
only
one
of
the
blade
workstations
has
the
problem,
troubleshoot
the
blade
workstation
that
has
the
problem.
80
BladeCenter
HC10
Type
7996:
Problem
Determination
and
Service
Guide