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#1 2018-11-22 11:05:45

Tasagore
Member
Registered: 2018-08-16
Posts: 7

Floppy (800kb) failure in Macintosh Plus

Hi

I've recently bought a Macintosh Plus M0001AP and it has a problem in its floopy disk. When I insert a FD if spins for a few seconds and after that is ejected, I've cleaned the unit and testing the basics (motors, mechanical), all seems fine.

Any hint or tutorial to check the unit?

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#2 2018-11-22 22:17:15

Tasagore
Member
Registered: 2018-08-16
Posts: 7

Re: Floppy (800kb) failure in Macintosh Plus

I've read some posts and seems that this grandpa needs its battery to boot, I don't have it installed (in fact I must to buy a new one) because I thought that it was just for the clock, does this have sense?

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#3 2018-11-23 06:51:14

mcdermd
Member
From: Corvallis, OR
Registered: 2014-05-12
Posts: 1,010
Website

Re: Floppy (800kb) failure in Macintosh Plus

No, it does not need the floppy to boot.

The floppy could be dirty. The sensor switch could be dirty. The hall sensor could be bad. You could be trying to use a 1.44 MB diskette in an 800 KB drive.


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#4 2018-11-23 12:41:20

Tasagore
Member
Registered: 2018-08-16
Posts: 7

Re: Floppy (800kb) failure in Macintosh Plus

mcdermd wrote:

No, it does not need the floppy to boot.

I suppose you mean the battery.

The floppy could be dirty.

If you mean the floppy itself, no, it works in other Mac, anyway I've tested a few with same result.

The sensor switch could be dirty.

Where is that swicht? The unit has two switches in the front part to detect that the floppy has been inserted properly and both works ok (tested).

The hall sensor could be bad.

Do you have more info about this?

You could be trying to use a 1.44 MB diskette in an 800 KB drive.

No, the floppies are SD, formatted in my Macintosh Classic works at 800Kb.

Regards

Last edited by Tasagore (2018-11-23 12:42:02)

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