RE: WG6100 help, still struggling

Thanks very much Joe...
Robb

> -----Original Message-----
> From: owner-vectorlist@vectorlist.org [mailto:owner-
> vectorlist@vectorlist.org] On Behalf Of Joe
> Sent: Sunday, March 07, 2004 1:41 AM
> To: vectorlist@vectorlist.org
> Subject: RE: VECTOR: WG6100 help, still struggling
>
> www.arcadehelp.com/manual/monitor/wells/K6100_Manual_3rd.pdf
>
>
> JB
>
>
> -----Original Message-----
> From: owner-vectorlist@vectorlist.org [mailto:owner-
> vectorlist@vectorlist.org] On Behalf Of Robb Gonyer
> Sent: Saturday, March 06, 2004 6:51 PM
> To: vectorlist@vectorlist.org
> Subject: RE: VECTOR: WG6100 help, still struggling
>
> >
> > On Sat, 6 Mar 2004 21:00:35 +0100, "MyPearl" <mypearl@dds.nl> wrote:
> >
> > >These problems often occur in the differential amlifiers, but since
> you
> > have
> > >a problem on both axes, I would look for a common source. Have you
> > checked
> > >the power supply rails?
> > >
> > >It could also be VERY well that the input protection is kicking in
> too
> > >early. Try to lower the size on the game PCB and see what happens.
> >
> > I was going to suggest the same thing. I've had problems with the
Rev
> 3
> > input
> > protection circuit in the past. I usually disable it since it
doesn't
> > provide
> > much protection as is, and keeps you from running earlier versions
of
> > Tempest.
> >
> > *If* this is a Rev 3 deflection board you can try unsoldering and
> lifting
> > one
> > leg on each of the diodes 805 - 808 (I think that's right, check the
> > schematic
> > to be sure). If it's not a Rev 3 board, these diodes won't exist,
and
> the
> > new
> > protection circuit is obviously not your problem.
> >
> > -Zonn
>
> That turned out to be it! I lifted one side of D805 - D808, two of
them
> tested a little funny. So I left them lifted, hooked it up, and it
> looks absolutely perfect.
>
> Thank you everyone for all the help, I really appreciate it. Now,
when
> I get a few minutes I'll post about troublemaking monitor number two.
:)
>
> By the way, does anyone have an electronic copy of the third printing
of
> the WG6100 manual? I just dug through all my paper copies, all I have
> is 1st and 2nd printings. Id like to get the schematics that show
those
> diodes so I can understand what was going on, as well as replace them
> with the proper parts.
>
> Thanks again
> Robb
>
>
>
>
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