AT&T PC 6300 - Page 475

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MAINTENANCE
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ERROR NO. PROBABLE CAUSE MODULE
801
Error Occurred During
Sequential Write Test.
MFD Unit
802 Error Occurred During
Sequential Read Test.
MFD Unit
803 Error During Funnel
Read and Data
Compare Test.
MFD Unit
804 Error During Verify
Diskette.
MFD Unit
805 Error During Random
Read Test.
MFD Unit
806 Error During Write
Protect Test.
See Note.
808 Error During Head
Alignment Test.
MFD Unit
Note: Verify that the diskette has a write-protect tab present.
If write-protect tab is present, replace the MFD Unit.
Figure 5-32. MFD Unit Troubleshooting Chart
Status words may also be displayed to aid in fault isolation. The
status words for the MFD Unit tests are in Figure 5-33, along with
the probable cause of the failure and the module in which the
failure occurred.
5-97
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