Re: I need help on apple SCSSI

[dempson@actrix.gen.nz (David Empson)]

In article <36ur6d$il2@io.rdc.puc-rio.br>,
John Kevin Ramalho <spartacu@ceres.rdc.puc-rio.br> wrote:
> 
> Hi all!

A hint: try limiting your lines to 70 columns, not 85.  It makes
message quoting much easier.

> I've got serous problems here in brazil...... Im one of the only
> apple IIgs user here in an country that has gone all IBM, I've
> reacently purchased an winchester and severall programs To boost my
> gs. The problem is that I Also got an adpoter for me to use my old
> appleII+ drives, but did it incorectly, so ....... I busted all my 
> drives + the drive port.... dont know if anything else went, the gs
> system test  tests ok. but the port has had it bad. The gs is working
> ok with an 5 1/4 disk II card.

It sounds like the IWM chip (the disk controller) is damaged.  The
only reasonable way to fix it is to replace the whole motherboard.  It
is next to impossible to solder and desolder chips on the IIgs, and
you cannot buy a replacement IWM anyway.

A replacement ROM 3 motherboard is available by mail order from
Alltech Electronics (you would have to send them your one).  They
charge US$199 for a ROM 3 motherboard swap.


It might be a simpler component on the motherboard.  Do you know
exactly what was wrong with the adapter cable?  If so, it may be
possible to work out what happened and which component is likely to be
damaged.

Did you have any other drives connected when you blew up the
controller?  If so, they may also be damaged.

> Is anything I can do? will I have to change my whole motherbord? What
> would happen if I got my self an Scssi card?

Not a lot.  A SCSI card doesn't support floppy drives (except SCSI
drives such as a Floptical, which isn't compatible with 800k 3.5"
disks).

You could get a SuperDrive controller (if they are still available
anywhere) and connect your 3.5" drives to that, provided the 3.5"
drives weren't damaged (if they were, then you might damage any device
you plug them into).

-- 
David Empson
dempson@actrix.gen.nz
Snail mail: P.O. Box 27-103, Wellington, New Zealand