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[ TROUBLE SHOOTING GUIDE
Start of disk system
of error message.
(See page 12.1
Trace the cause from the contents
Yes
Yes
Check repair procedure for power
~--------'~
supply section.
(See pages 13 and 14.1
No
End
• Check by replacing several sheets of diskette to see if errors occur due to faulty diskette (data deterioration
caused by foreign matters, deformation, wear-out, damage, magnetism, etc.).
• Troubles in disk system often cause error messages. Trace the cause from the contents of error message.
• Replace suspected parts in the disk system with normal ones. Check again the trouble section.
1)
Personal computer
2) Interface unit or expansion port
3) I/O card
4) Diskette
5) Signal cable
6) Disk drive
• The signal circuits of floppy disk and I/O card operate at TTL levels of OV, +5V. Connect any system other than
micro-computer peripheral devices for MZ-80 series to see if signal levels are out of the range of 0 to +5V (max.
+5.25V).
• The disk drive needs a RAM area of more 36K bytes. If the RAM area of your machine is less than 36K bytes,
it must be expanded.
-11-
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