Re: I need help on apple SCSSI

[peterm@tlp.apana.org.au (Peter Maloney)]

David Empson said...
"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.

Two comments...
1. It's not really all that hard to replace the IWM. I've done it. It 
does take patience. I picked up some Mac II IWMs that were left over from 
SWIM upgrades. They are a slightly different part number (I can get it if 
you want it) but are the same shape and work well.
2. The other way out (using a UDC card) is preferred. 
I thought I new all about soldering; been doing it since 1956. But an 
electronic organ technician gave a demonstration of how to solder surface 
mount stuff using only a butane-powered soldering pencil - blew my mind! 
*<8o)X
Regds,
 Peter M.
s

peterm@tlp.apana.org.au                TLP - The only *REAL* A2 BBS in 
Peter Maloney                          Melbourne 
A2 Hardware Freak
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