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to PROCEDURE 5.
3. If message (b) or (c) is displayed, the contents of the floppy disk
is damaged, or a disk other than the MS-DOS system disk has been
inserted into the FDD. Insert a new MS-DOS system disk into the
FDD. If loading completes, go to PROCEDURE 4. If loading does not
complete, go to PROCEDURE 3.
4. If none of the above messages appears, go to PROCEDURE 5.
<fig id=MMS\5200\52002_22.TIF>Page 2-22</fig>
PROCEDURE 3
Head Cleaning
1. Turn off the power.
2. Insert the cleaning disk into the FDD.
3. Turn on the power.
4. If normal operation is restored after cleaning the head, go to
PROCEDURE 4.
5. If normal operation is not restored, go to PROCEDURE 5.
<fig id=MMS\5200\52002_23.TIF>Page 2-23</fig>
PROCEDURE 4
FDD Test Execution
1. Insert the diagnostics disk into the FDD. Then type a:testce52
and press Enter key.
2. Remove the diagnostics disk from the FDD, then insert the formatted
work disk in.
3. Run the floppy disk test as indicated on the diagnostic test menu.
4. If an error is generated during the floppy disk test, an error code
and status will be displayed. The error codes are described in
table 2-4. Go to PROCEDURE 6.
5. If no error is generated, the FDD is normal.
Table 2-4 FDD error code
ÚÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿
³Code³ Status ³
ÃÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´
³ 01 ³ Bad Command ³
³ 02 ³ Address Mark Not
Found³
³ 03 ³ Write Protected ³
³ 04 ³ Record Not Found ³
³ 06 ³ Media Removed ³
³ 08 ³ DMA Overrun Error ³
³ 09 ³ DMA Boundary Error ³
³ 10 ³ CRC Error ³