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computers / comp.sys.tandy / Re: M102 mainboard (PCB)

Re: M102 mainboard (PCB)

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https://www.rocksolidbbs.com/computers/article-flat.php?id=71&group=comp.sys.tandy#71

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From: me@sc1f1dan.com (Daniel)
Newsgroups: comp.sys.tandy
Subject: Re: M102 mainboard (PCB)
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by: Daniel - Fri, 3 Feb 2023 07:27 UTC

lowrezz@gmail.com writes:

> I ask because I have a T102 where the mainboard
> looks a little fried and corroded. Assembly of a new
> Board would be a nice backup should my repair
> attempts fail.
>
> If I knew how, I'd build a new board with a Z80
> on board. I know there's Pi based retrofits out there,
> but, no thanks.
>
> OTOH, if this 102 board is fried, maybe a tear down
> and scan would be better than parting out the rest
> of the chassis and case.

I may just do it. I have a working 102 and one that works sans some bad
lines on display due to a bad display driver chip. It is fixable if I
can find a spare chip for sale as a drop-in replacement. I don't want to
sacrifice it if it is largely fixable.

I've been looking for a dead one on ebay for less than $20 but people
want crazy money for even a dead one. If I can get my hands on a dead
100, 102 then I'll get started reverse engineering the board in CAD and
see how it goes.

I may ask the bitchin crew if someone has a dead 100 they're willing to
donate.

Daniel