Re: 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/sta
>> >> 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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Received on Thu Aug 23 09:10:02 2001