First guess would have been BIPs, but you say you tried that. Any
chance someone replaced an opamp with a different part number (a slower
one)?
Steve Coule wrote:
> I'm trying to sort out a Battlezone board and I'm stuck .. I've done
> the "easy" bits like fixing the vector state machine and changing a
> duff DAC but I'm completely stuck now.
>
>
>
> It's definitely a PCB problem and it's definitely on the main board.
> The text seems to be the problem but it could be that it just shows up
> more on the text ... take a look at the pics ... any hints of where to
> look would be great!
>
>
>
> All the lines to the DACs have what look like good signals .. the X
> DAC is new. It still looks like an X-axis problem though ... the
> triangle of varying brightness lines does not appear to be a triangle
> ... the second line up seems offset to the left! BIPs have been
> adjusted but don't correct text problem.
>
>
>
> http://www.apcs77.dsl.pipex.com/DSCN2006.JPG
>
> http://www.apcs77.dsl.pipex.com/DSCN2005.JPG
>
>
>
> Any help or hints gratefully received!!
>
>
> Thanks,
>
>
>
> Steve
>
---------------------------------------------------------------------------
** Unsubscribe, subscribe, or view the archives at http://www.vectorlist.org
** Please direct other questions, comments, or problems to chris@westnet.com
Received on Sat May 1 20:17:06 2004
This archive was generated by hypermail 2.1.8 : Mon May 03 2004 - 17:50:00 EDT
