Re: CBM 610 troubleshooting

From: Michał Pleban <>
Date: Thu, 24 Jan 2013 19:12:52 +0100
Message-ID: <>

Anders Carlsson wrote:

> Unfortunately, replacing the 6526 with a known good chip didn't change
> anything. Also, I tried the 6509 from the 610 into the 710, and the
> latter boots to Basic like it should. This suggests that both CIA and
> CPU are good in the 610, and the problem is to be found elsewhere. Too
> bad the 6525's aren't socketed, as I acquired a few from Rob before.

That's too bad. If you don't have an oscilloscope and the CIA chip is
not broken, I guess there's not much you can do except shipping it to me
(I do have an oscilloscope) :-P


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Received on 2013-01-24 19:00:07

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