Re: prlink in dutch c't

From: Andre Fachat (a.fachat_at_physik.tu-chemnitz.de)
Date: 1998-03-25 12:52:00

Olaf Seibert wrote:
> Speaking of dutch people: is there anyone who can help me fix a few
> broken PETs that I have? I have a broken 8296 and a 8032 with some kind
> of hi-res graphics card (not VisMem, nor the PET Benelux Exchange one, I
> think), and both do exactly nothing as they are turned on... and I'm not
> much of a hardware guy. I'd be willing to part with a 8050 drive that's
> also broken somehow (but the digital and software parts work).

Well, without having the thing under my hands I can't do anything.
I think the 8032 schematics is on funet, and I have hand-drawn
parts of an 8296 schematics. 
Starting from there and being additionally armed with 65** and TTL etc 
databooks I would use an oscilloscope and see if the 
clock signals work, the CPU address lines, data lines and select lines...

But then I simply switched chips with another (untested) 8296 board to find 
the broken chip in my 8296...

Andre

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Andre Fachat, Institute of physics, Technische Universitšt Chemnitz, FRG
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