AT&T PC 6300 - Second Hard Disk Unit

MAINTENANCE
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Second Hard Disk Unit
Possible defective hardware:
• HDU Cable
^ • HDU Controller
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• HDU.
^ ' To test the second hard disk, proceed as follows;
1. Turn the power switch OFF.
2. Insert the MS-DOS System Diskette into drive A.
3. Turn the power switch ON and verify that the Operating
System is booted.
4. Remove the MS-DOS System Diskette from drive A.
5. Insert the System Test Diskette into drive A.
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