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 Fri Dec 17 11:27:32 1999