Re: Black Widow Prob

I'm wery happy you could fix the board!

That's not too bad, just the AM6012... I had a very similar problem, but the
AM6012 was OK. It turned out to be a 5 gate NOR, It took me a little longer to
find this little $%#% ! :)

chumblespuzz wrote:
>
> Thanks all! It was the AM6012.
>
> -roy-
>
> ----- Original Message -----
> From: Tek <mypearl@dds.nl>
> To: <vectorlist@lists.cc.utexas.edu>
> Sent: Friday, December 17, 1999 12:25 PM
> Subject: Re: Black Widow Prob
>
> > First of all, I would put my scope in X-Y mode at the direct outputs of
> the I/U
> > conversion opamp, to exclude everything after this stage. If it is bad
> there
> > also, you have a change the Opamps are blown. If not, the next step would
> be to
> > check for the AM6012 DAC's.
> > I really think it is an analog problem, the way the vectors are drawn
> (bended
> > and curved).
> > Of course you have checked all supplies on the AVG board.
> >
> > Cya !
> >
> > chumblespuzz wrote:
> > >
> > > I've got a Black Widow board that does this:
> > >
> > > http://members.home.net/chumblespuzz/images/bw_prob1.jpg
> > >
> > > Checksummed all EPROMs. Changed all socketed chips. It's not the
> monitor.
> > >
> > > Any suggestions on where I should start looking?
> > >
> > > Thanks,
> > > -roy-
> >
Received on Tue Dec 21 11:39:30 1999