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8-6 Diagnostics Tools
Writer: Project: Diagnostics Tools Comments:
File Name: J-ch8.doc Last Saved On: 4/24/97 10:38 AM
POST Error Messages continued
Error Code Audible
Beeps
L=Long
S=Short
Probable Source of
Problem
Action
301-Keyboard Error
or Test Fixture
Installed
None Keyboard failure Replace the keyboard.
ZZ-301-Keyboard
Error
None Keyboard failure. (ZZ
represents the Keyboard
Scan Code.)
1. A key is stuck.
Try to free it.
2. Replace the
keyboard.
303-Keyboard
Controller Error
None System board, keyboard,
or mouse controller failure
Contact your service
provider.
304-Keyboard or
System Unit Error
None Keyboard, keyboard cable,
or system board failure
1. Make sure the
keyboard is
attached.
2. Run Diagnostics
to determine
which is in error.
3. Replace the part
indicated.
40X-Parallel Port X
Address Assignment
Conflict
2S Both external and internal
ports are assigned to
parallel port X.
Run the System
Configuration Utility.
402-Monochrome
Adapter Failure
1L,2S Monochrome display
controller
Replace the
monochrome display
controller.
continued
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