Re: Apple ][ plus 13 sector! Problems...

[Richard Kilpatrick <delorean@NOSPAMbtconnect.com>]

On 19/7/04 8:00 pm, in article 20040719150048.04872.00000141@mb-m12.aol.com,
"Michael J. Mahon" <mjmahon@aol.com> wrote:

> Richard Kilpatrick wrote:
> 
> <snip>
> 
>> For all I know the card is faulty, but since it's clearly seeking correctly
>> and bootstrapping, I'm unsure.
> 
> From what you have described, it is very unlikely that there is anything
> wrong with your 13-sector controller card.
> 
> Think drive (dirty heads, speed wrong, with any luck) or disk.

More info, after some time playing.

Speed is correct, and there is minor variation with the control. I've
reseated all the Apple's ROMs - a lot of the pins were black, although I
would presume that things are working. I've cleaned all the connectors.

Now what I get - with pretty much any formatted disk - is 'ERR'. Unformatted
disks fail to find track 0, disks that previously would find track zero then
seek/crash to monitor isn't doing the seek, and is just reporting ERR.

Unless I use the command PR#6, which results in the machine continually
chattering for a track 0 seek on formatted disks.

A couple of times it has reported ERR with random characters on screen, and
a couple of times it has filled the screen with crap and inverse characters.

Annoyingly, even the track zero located/seek/crash felt like more was being
done. So I'm unsure now if I've made it better or worse!

Must get another machine to do some tests on!

Richard
-- 
Richard Kilpatrick@work.eMac. Apples of various varieties.
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