Date   : Wed, 28 Apr 2004 20:39:28 +0100
From   : Mike Tomlinson <mike@...>
Subject: Re: 65c02

In article <Pine.LNX.4.58.0404271730010.29903@...>, gARetH
baBB <hick.bbc@...> writes
>On Tue, 27 Apr 2004, Dom Wright wrote:
>
>> I've just dug out an Issue 7 machine and put a 65c02 in it and it seems
>> to work fine.
>
>Yes, I think I might try a chip replacement of various parts just in the
>blind hope something will fall into place.
>
>What do people reckon will be the clincher ? ULA ?

Seeing as the replacement is a CMOS chip (that's the c in 65c02), I'd
guess your ic14 (74LS245) is marginal; try changing it.  It interfaces
the 6502's data bus to the memory and the TTL fan-out is high.

-- 
A. Top posters.
Q. What's the most annoying thing on Usenet?