Re: WG6100 display problems

No source for the CPs, but Arcade Renovations has the CPOs.

-roy-

----- Original Message -----
From: "John Robertson" <jrr@flippers.com>
To: <vectorlist@synthcom.com>
Sent: Thursday, August 23, 2001 12:09 PM
Subject: Re: VECTOR: WG6100 display problems

> Oh well, I plugged the monitor in our Tempest (thinking the distortion I
> got on the WICO XY signal generator would still be there) - no distortion.
> I should ALWAYS check the test equipment first, before I spout off. The
> problem with the distortion in the monitor originally turned out to be a
> shorted bias diode on one of the driver transistors. The "Diode Check"
> function on my meter found that one.
>
> Nice c/t Tempest again, but I am looking for both access doors, and two
> good control panels - the game had been modified to something else so
there
> is an extra hole in each c/p.
>
> John :-#)#
>
> At 05:28 PM 20/08/2001, you wrote:
> >Ah, yes, that is for when a WG is used in SW or ESB, this hourglass is
> >when the monitor is used in Tempest or with the XY signal generator. I
> >believe it is caused by uneven amplification but I am not a transistor
> >expert. I did check the transistors and diodes in the monitor
motherboard,
> >but while some parts had to be replaced the problem did not go away.
> >
> >I'll post a picture tomorrow perhaps....
> >
> >Thanks,
> >
> >John :-#)#
> >
> >At 12:17 PM 20/08/2001, you wrote:
> >
> >>The hourglass shape is due to WG6100 and Ampliphone tube having
different
> >>curvatures.
> >>
> >>Clay Cowgill makes a signal adaptor that straightens the curves. You can
see
> >>it at http://www.multigame.com/display.html
> >>
> >>As for the imbalance, if you center the image on the tube face it should
> >>disappear.
> >>
> >>on 20 08 01 11.43, John Robertson at jrr@flippers.com wrote:
> >>
> >> > I too have a distortion problem on this monitor when used either on
my
> >> WICO
> >> > XY generator or in a Tempest. the negative horizontal (2N3792) axis
is
> >> > curved in, not unlike an hourglass. Much less pronounced on the
right.
> >> > Suggestions?
> >> >
> >> > John :-#)#
> >> >
> >> > At 10:27 AM 20/08/2001, you wrote:
> >> >
> >> >> I am running a wg6100 in a Star Wars. The monitor has a rev 327
> >> deflection
> >> >> board. If you take a look at the URL below you will see the problem
I am
> >> >> getting. The vectors do not line up correctoly and are distorted,
> >> >> particularly at the top and bottom. I have obviously capped the
monitor
> >> >> and replaced ALL the chasis trans. Any help at all would be
appreciated.
> >> >>
> >> >>
> >>
<http://www.densgameroom.com/starwars/sw.html>http://www.densgameroom.com/st
a
> >> >> rwars/sw.html
> >> >>
> >> >>
> >> >> Dennis
> >> >
> >> >
> >>
> >>--
> >>Anthony Ramos________
> >>600 SE 39th Ave., # 3 \__ aramos@ele-mental.org .. aramos@hyperreal.org
> >>Portland, OR 97214 \___ information design .. multimedia production
> >>(503) 236-6303 \____________interactive art .. image synthesis
> >>
> >>
>
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>

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Received on Thu Aug 23 10:16:01 2001