Apple 145B, 170 manual Floppy Drive

TroubleshootingSymptom Charts/Floppy Drive - 14

Floppy Drive

Audio and video	1	Try known-good floppy disk.
present, but internal	2	Check floppy drive cable connection.
drive does not operate	3	Replace floppy drive cable.
	4	Replace floppy drive.
	5	Replace daughterboard.
	6	Replace motherboard.
Disk ejects while	1	Try known-good system disk.
booting; display	2	Verify that trackball or mouse button is not stuck.
shows Mac icon with	3	Check floppy drive cable connection.
blinking X	4	Replace floppy drive cable.
	5	Replace floppy drive.
	6	Replace motherboard.