Re: Diskdrive loading problem

From: Henry Sopko (
Date: 1998-09-19 19:48:35

On Fri, 18 Sep 1998, Ruud Baltissen wrote:

> Hallo Henry,
> > On Fri, 18 Sep 1998, Henry Sopko wrote:
> > 
> > > I have a C64 that may have a bad CIA chip, but I want to be sure
> > > first before I go through the work of replacing it. Maybe someone on the
> > > list can give some trouble shooting tips to narrow the problem down. Okay,
> > > the problem is when I try to do any file loading, I will get the message
> > > "searching for (name of file)" and thats it. No drive access at all.
> > 
> > I've had that problem, and it was the CIA.  It could also be the 7406,
> > however.
> > 
> >       Marko
> > 
> In the early days the PLA was the top ten trouble shooter. The C64s I've to 
> repair last times had either problems with the CIA, the 7406 or in some cases 
> even both. The chances are slightly in favour of the 7406.
> Groetjes, Ruud

Hello Ruud and Marko.

     Well, I was very fortunate! What had happened was, when I unsoldered
the metal shield of the C64 to do some other work on the board, I had made
a mistake in soldering a bridge accross (I think it was FB8) to the
metal shield, which grounded it. No damage was done as far as I can tell,
and all seems to works well now. Thanks for your help!


     I converted this NTSC C64 to a PAL, and everything works good except
I cannot get color. I have a 1084S monitor which can display both NTSC and
PAL modes. Any idea as to why I cannot get color?

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