IBM 6643 User Guide - Page 75

Diskette drive problems, Display/monitor problems

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Diskette drive problems Symptom Action Diskette drive in-use light stays on or the system bypasses the diskette drive. or You cannot read or write to a diskette. If there is a diskette in the drive, verify that: 1. The diskette drive is enabled. Use the Configuration/Setup Utility program to check this. For more information, see "Chapter 4. Using the Configuration/Setup Utility program," on page 31. 2. The computer is checking for the diskette drive in the startup sequence. Use the Configuration/Setup Utility program to verify this. 3. The diskette you are using is good and not damaged. Try inserting another diskette if you have one. 4. The diskette is inserted correctly, with its label up and its metal shutter end first in the drive. 5. The diskette contains the necessary files to start the computer (the diskette must be startable). 6. That there is no problem with your software program (see "Software problems" on page 69). If you cannot correct the problem, have the computer serviced. Display/monitor problems Symptom General monitor problems Blank screen Unreadable characters The monitor works when you turn on the computer, but goes blank after some period of computer inactivity. Action 1. Make sure the brightness controls are adjusted correctly. 2. Some IBM monitors have their own self-tests. If you suspect a problem with your monitor, see "Running the IBM Enhanced Diagnostics program" on page 70 and run diagnostics on the monitor. If you cannot find the problem, check the other listings on monitor problems in this table. Verify that the brightness controls are adjusted correctly. If you cannot correct the problem, have the computer serviced. Have the computer serviced. The computer is probably set for energy savings, using one of the power management settings. If the power management features are enabled, disabling or changing the settings might solve the problem (see "Other settings in the Configuration/Setup Utility program" on page 35). Chapter 6. Troubleshooting 61

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Chapter 6.
Troubleshooting
61
Diskette drive problems
Display/monitor problems
Symptom
Action
Diskette drive in-use
light stays on or the
system bypasses the
diskette drive.
or
You cannot read or write
to a diskette.
If there is a diskette in the drive, verify that:
1.
The diskette drive is enabled. Use the
Configuration/Setup Utility
program to check this.
For more information, see
“Chapter 4. Using the
Configuration/Setup Utility program,” on page 31.
2.
The computer is checking for the diskette drive in the
startup sequence. Use the Configuration/Setup
Utility
program to verify this.
3.
The diskette you are using is good and not damaged.
Try inserting another diskette if you have one.
4.
The diskette is inserted correctly, with its label up and
its metal shutter end first in the drive.
5.
The diskette contains the necessary files to start the
computer (the diskette must be startable).
6.
That there is no problem with your software program
(see “Software problems” on page 69).
If you cannot correct the problem, have the computer
serviced.
Symptom
Action
General monitor
problems
1.
Make sure the brightness controls are adjusted
correctly.
2.
Some IBM monitors have their own self-tests. If you
suspect a problem with your monitor, see “Running
the IBM Enhanced Diagnostics program” on page 70
and run diagnostics on the monitor.
If you cannot find the problem, check the other listings on
monitor problems in this table.
Blank screen
Verify that the brightness controls are adjusted correctly.
If you cannot correct the problem, have the computer
serviced.
Unreadable characters
Have the computer serviced.
The monitor works
when you turn on the
computer, but goes
blank after some period
of computer inactivity.
The computer is probably set for energy savings, using one
of the power management settings. If the power
management features are enabled, disabling or changing
the settings might solve the problem (see “Other settings in
the Configuration/Setup Utility program” on page 35).