Re: Ms. Pac-Man Monitor (WG?) bends UPDATE

Ok, the issue continues :)

I talked to a guy here at work who cleared up some of my questions. It
looks like I may need to re-align the electron guns to fix the color
bleeding, and I will likely need a capkit to fix the screen bending.
That said, I have a new concern and that was that I might have made a
mistake by playing with the knob connected to the flyback (on the right
side of the HV cage. He mentioned that tweaking this might cause X-rays
to leak out of the tube due to basically an overvolt. I thought I would
check with fellow arcade owners since his experience if for CRTs in
general. Should I be concerned about this? And if so, is there a place I
can look for adjusting this knob to normal limits?

Also, I am still looking for a local arcade / monitor repair shop in San
Antonio, TX. If anyone knows of someone, I would rather go with someone
by word of mouth than the yellow pages :)

Thanks as always! :) I thought I knew a few things from my experience
with my Space Duel cabinet. I was horribly mistaken :)

Tim Soderstrom wrote:
> Well, I didn't find anything marked as such.
>
> On the bottom of the neck, there are 4 POTS - one appears to be vsync,
> and the other 3 are R G B. There is also a black knob to the right
> side of the next (bolted to the frame) that appears to have something
> to do with the insulator cup since the big red wire from the cup goes
> into this gizmo. I tried adjusting that and it looked like it may have
> helped a little, but it was hard to say. The bottom right hand corner
> of the screen remained largely unchanged even after going to both
> extremes (counter-clockwise and clockwise). I ended up putting it back
> where I thought it was originally set to. I didn't want to touch the
> other POTS since they didn't appear related, and were on the next of
> the monitor (again the freak out thing :)
>
> To elaborate, the waves appear to bend downward on the top and bottom
> right sides of the screen. The middle appears to bend down and then up
> slightly, although the whole right side is not straight as a whole.
>
> Is there any documentation on these monitors? wellsgardner.com appears
> to only have information about their newer monitors and the
> instructions I have don't really tell me what to set (although I did
> find where they mentioned teh horizontal frequency; they just don't
> say where that is).
>
> I think at this point it might be best for my health and enjoyment
> just to live with it for now :) But if anyone has any further
> thoughts, they would be much appreciated.
>
> Peace Out,
>
> Tim
>
>
>
> On Sep 8, 2006, at 3:07 AM, Matt J. McCullar wrote:
>
>> There's a possibility that you may be able to "tweak" out that curl.
>> Granted, most monitors these days need to be "re-capped" anyway, but
>> in many
>> cases that curling effect is a function of the monitor not quite
>> synchronizing with the horizontal sync pulse being generated by the
>> game's
>> computer. Try adjusting the Horizonal Frequency pot in the monitor
>> (probably maked HFREQ) and see if this helps.
>>
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Received on Tue Sep 12 16:16:38 2006