Compaq 1230 Maintenance & Service Manual page 51

"Compaq.com - Compaq Presario 1200 Series Maintenance and Service Guide - Models: 1230 and 1232
Probable Cause
Probable Cause
Keyboard failure
Probable Cause
Keyboard or system board error
Probable Cause
Mismatch in drive type or failure in the diskette
controller
Probable Cause
Mismatch in drive type
Probable Cause
Disk 0 failed to respond
Hard drive format error
Probable Cause
Hard drive controller failure
1.800.AT.COMPAQ
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XX000YZZ 201-Memory Error
Recommended Action
301-Keyboard Error
Recommended Action
1. Ensure the keys are not depressed during POST.
2. Reconnect the keyboard with the computer off.
3. Replace the keyboard.
304-Keyboard or System Unit Error
Recommended Action
1. Replace the keyboard.
2. Replace the TouchPad or mouse.
3. Replace the system board.
601-Diskette Controller Error
Recommended Action
1. Run Computer Checkup (TEST).
2. Check and/or replace cables.
3. Replace the system board.
605-Diskette Drive Error
Recommended Action
Run Computer Setup.
1780-Primary Hard Drive 0 Failure
Recommended Action
1. Run Computer Checkup (TEST).
2. Replace the hard drive.
1. Run Computer Checkup (TEST).
2. Replace the hard drive.
1782-Hard Drive Controller
Recommended Action
1. Run Computer Setup.
2. Replace the hard drive.