Re: PUFF the magic G08, lived, by the sea...

From: Noel Johnson <nej_at_airmail.net>
Date: Tue Oct 19 1999 - 21:17:34 EDT

Clay Cowgill wrote:
>
> > This may not apply, but I recently lost the color green on my
> > Wells-Gardner 6101. Since it happened on more than one monitor, I took
> > a look at the game wiring harness. It turned out to be a couple of the
> > pins in the big monitor molex were pushed down and not making good
> > contact.
> >
> No, no, no, Noel! You did that all wrong! What fun is just fixing the bad
> connector? First you take out the PCB's and test them for color outputs.
> That would appear normal, so jump to the conclusion that the problem must be
> the monitor.
>
> Take all the boards out of the monitor and resolder everything in the color
> circuits path. Try it again.
>
> That wouldn't have helped, so figure it *must* be the neck board (just
> because... neck boards are funny that way). Take a neck board off a spare
> chassis and hack it into the monitor. Try it again.
>
> Now both Red *and* green will be out 'cause the replacement neck board
> really *is* bad. This will only re-affirm your belief that the neck board
> is the culprit. Now desolder the parts from the Red and Blue channels on
> the original neck board (since they're known good) and swap them onto the
> one that's missing red and green. Try it again.
>
> If you did things correctly, you will have put at least one transistor in
> backwards resulting in it's complete and utter destruction with a satisfying
> "pop". Take the neckboard off, rifle through the pile of parts you pulled
> off the (good) neckboard and test them looking for a suitable replacement
> for the dead one. That won't be hard 'cause they'll all be good, but of
> course you don't know that. Replace the bad transistor with a good one.
> Put everything together. Try it again.
>
> About this time you will have managed to accidentally fix the bad wire in
> the harness by just unplugging and re-plugging everything so many times.
> When you turn the machine on again it'll work just fine! You'll then have
> the satisfaction of fixing such a complex problem and be able to tell the
> tale of danger and excitement to anyone who will listen (in awe). ;-)
>
> -Clay

Clay,

LOL!

Is this a typical day at Clay's shop? ;-) Perhaps I need to rethink
that order for a Tempest Multigame that I was considering... hehehe

Actually, to be honest I tried all that *stuff*, but was too embarrassed
to admit it here for all the world to see...

Noel
Received on Tue Oct 19 20:20:51 1999

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