Re: Lisa 2/10 floppy drive help

On Jan 6, 9:57 pm, James MacPhail <g..._at_email.domain.hidden> wrote:
> >Apparently, when I insert a floppy disk, it isn't
> >displacing a small black plastic piece far enough to block the RED
> >lights, thus the floppy disk drive doesn't know that a disk has been
> >inserted.
>
> 1) Make sure you aren't using an HD (1.44 MB) disk (which has the density
> select hole where the  400K disk sensor is, so it will never appear to be
> inserted).
>
I did notice the extra hole on the HD floppy so I am using a 400K floppy

> Your disk should have only one hole along the outer edge, at the left (with
> a slider for write protect), ie. 400/360K (single sided, double density) or
> 800/720K (double sided, double density).
>
> For testing purposes, you could cover the extra HD hole with tape, but it
> may not read/write/retain-data properly.
>
> Otherwise, I would guess:
>
> 2) you have more dried grease to remove to allow full travel of the mechanism
>

The floppy disk inserts and ejects easily now, so I can't imagine where any more grease would be.

> or
>
> 3) the eject motor is stuck at a partially ejected position, preventing the
> mechanism from allowing the disk to seat fully.
>

If I manually pull that black plastic piece down, then the drive works fine. It will even eject the disk. Maybe there was supposed to be some padding or something on top of the black bar, because as I look at it, it is secured by a c-clamp on a metal rod with a spring, but the metal bar comes up just higher than the black plastic bar does (so that the c-clamp has a place to latch), so I don't see how the floppy disk could push it down. The plastic bar on the other side, used to check if the write protection is enabled, has a small black plastic piece that stickes up on it, maybe that is missing on this bar?

> HTH,
>
> James
>
> James MacPhail                   "Think not of engineering as art,
> uo..._at_email.domain.hidden                 but of art as engineering"
> Sigma Seven Systems Ltd.
> ja..._at_email.domain.hidden        <http://SigmaSevenSystems.com>

Thanks, for the advise.
- Nate
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