On Wednesday, October 8, 2003, at 09:40 PM, Chris "Zap" wrote:
Greetings to the list!
Welcome!
I am a new subscriber and a fan of the classic all-in-one styled Macs.
I currently have a small collection, which just had it's crown jewel added
today. A Macintosh (128k as far as I know),
Beware that many 128k Macs were upgraded to 512k, and I think that memory and/or SCSI upgrades needed a ROM upgrade, so you nice Mac may be a long way from original spec. The SCSI upgrades are nice, though!
with Dove SCSI and MacSnap
boards installed. However, this poor Mac appears to have suffered a hard
life at the abuses of University students. That is, until I saved it from
the dumpster. It has its original mouse with it.
My problem is it won't boot up. I simply get beeping and no video. I
believe that the problem lies on the Analog Board, and at first look the Q4
transistor looks like it has blown up. Does anyone know where I can get
more information about the parts on the boards, and possibly what else may
be causing this Mac not to boot?
There are a number of standard books on the subject by Larry Pina, especially 'The Dead Mac Scrolls'.
It sounds as if you know your way around a circuit board, in which case the Gamba's index of schematics here may help:
http://home.earthlink.net/~gamba2/schematics.html
best wishes,
Stuart
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