Apple macintosh ii.iix.iifx サービスマニュアル

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 Troubleshooting
Symptom Charts/Floppy Drive
 
 (Continued)
 
 - 11
 
Floppy Drive
 
 (Continued)
 
Audio and video are 
present, but neither 
internal floppy drive 
operates
1 Replace bad disk.
2 Verify that all external SCSI devices are disconnected.
3 Replace logic board. Retain customer’s SIMMs.
4 Replace power supply.
Disk ejects; display 
shows icon with 
blinking “X”
1 Replace disk with known-good system disk.
2 Replace internal floppy drive cable.
3 Replace internal floppy drive.
4 Replace logic board. Retain customer’s SIMMs.
Will not eject disk
1 Switch power off and hold mouse button down while 
switching power back on.
2 Replace internal floppy drive.