IBM 84885BU, Руководство по техническому обслуживанию и устранению неисправностей

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Note: See Chapter 7, “Parts listing Type 8488 and 8648,” on page 129 to determine which components are
replaceable by the customer (CRU), and which components must be replaced by a field service technician (FRU).
Monitor
Symptom FRU/action
The screen is wavy, unreadable,
rolling, distorted, or has screen
jitter.
1. If the monitor self-tests show the monitor is working properly, 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. (Moving a color monitor while it is turned on
might cause screen discoloration.) Then move the device and the monitor at
least 305 mm (12 in.) apart. Turn on the monitor.
Notes:
a. To prevent diskette drive read/write errors, make sure that the distance
between monitors and diskette drives is at least 76 mm (3 in.).
b. Non-IBM monitor cables might cause unpredictable problems.
c. An enhanced monitor cable with additional shielding is available for the
9521 and 9527 monitors. For information about the enhanced monitor
cable, contact your IBM reseller or IBM marketing representative.
2. Video adapter, if installed.
3. System board.
Wrong characters appear on the
screen.
1. If the wrong language is displayed, update the BIOS code with the correct
language.
2. Video adapter, if installed.
3. System board.
No video. Make sure that all cables are connected correctly and securely. If you have
installed a Remote Supervisor Adapter II in the server, make sure that the video
cable is connected to the Remote Supervisor Adapter II.
Note: See Chapter 7, “Parts listing Type 8488 and 8648,” on page 129 to determine which components are
replaceable by the customer (CRU), and which components must be replaced by a field service technician (FRU).
Option
Symptom FRU/action
An IBM option that was just
installed does not work.
1. Verify that:
v
The option is designed for the server (see the ServerProven
®
list at
http://www.ibm.com/pc/compat/).
v
You followed the installation instructions that came with the option.
v The option is installed correctly.
v
You have not loosened any other installed options or cables.
v You updated the configuration information in the Configuration/Setup Utility
program. Whenever memory or an option is changed, you must update the
configuration.
2. Option you just installed.
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xSeries 226 Type 8488 and 8648: Hardware Maintenance Manual and Troubleshooting Guide