5 Apr
2011
5 Apr
'11
4:14 p.m.
On Tue, 5 Apr 2011, Mr Ian Primus wrote:
--- On Tue, 4/5/11, Steven Hirsch <snhirsch at
gmail.com> wrote:
The diskette drive was throwing a lot of read errors and making a lot of
friction noise. On a hunch, I moved the pressure-pad tension spring to a
lower setting (closer to the pivot). Then, I put in the MacWorks
diskette. It chunked away for a while, emitted a beep and spat it out.
The Macintosh "insert diskette" icon was on screen :-).
Put in the Mac System diskette and it loaded to the desktop.
Turns out that LisaTest 3.0 will NOT run in 512k, which might be a good
data point for others in the this situation down the road. I found an AST
RamStack 1M board in the other machine and put that in the second memory
slot. ListTest booted without a problem and is busy testing memory as
this is written.
One serious issue with the diskette drive: It has one or more "dead"
spots in its rotation. If it stops at such a point it fails to spin up
again at the next access. When it spits the diskette out with an error, I
give the spindle a small push with a screwdriver, reinsert and it picks up
Several questions:
- I think my unit is 512k (one Apple-branded memory
board). Will the disks you refer to work on that?
MacWorks should definitely work - but I'm not sure about LisaTest or
Lisa Office System. I know Lisa Office System really wants 1mb. IMHO,
LisaTest *should* run on 512, but I've never tried it. from that point.
Hopefully folks have some sage advice for dealing with dead spots? It's
not related to the excess pressure on the head - it doesn't even try to
spin. There's absolutely no sound or activity.
Steve
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