Re: Beam on side of CRT

>From what I understand, the G05 and V2000 are very similar. Do you have X and
Y pots on your deflection board? They may be very small and difficult to see
with the monitor mounted inside the cabinet.

The problem with bad pots won't cause blooming, that's a HV problem. Your
screen being too wide and not able to be adjusted within spec by the pots on
the game board, well - I would look for pots on the deflection board. The ones
I dealt with would adjust fine, until you took the tool off of them - then pop
right back to open, and too wide (and too tall.) Find 'em, check 'em, replace
'em, be done with it.

Bret Pehrson wrote:

> Yeah -- I forgot to mention what monitor it's running.
>
> It's got a G05 in it.
>
> Also for clarity -- I'm not having a problem w/ blooming. Vert is fine,
> horz is just a little wide.
>
> Thanks
>
> > -----Original Message-----
> > From: owner-vectorlist@synthcom.com
> > [mailto:owner-vectorlist@synthcom.com]On Behalf Of someotherguy
> > Sent: Wednesday, September 20, 2000 8:04 AM
> > To: vectorlist@synthcom.com
> > Subject: Re: VECTOR: Beam on side of CRT
> >
> >
> > I'll save the explanation of why it would be bad to shoot a beam off the
> > side for someone else - (as I don't know why) but as far as
> > adjusting your
> > picture - if it's the xxV2000 WG, check on the deflection board
> > for X and Y
> > pots, as well. These were bad on a friend's BZ mini, making the
> > screen too
> > wide to read the score - the cardboard overlay obscured it.
> > These did the
> > trick when the adjustments on the game board wouldn't bring the picture
> > into proper adjustment.
> >
> > Richard
> > www.arcadeobsession.com/sog
> >
> > At 12:58 AM 9/20/00 -0600, you wrote:
> > >I was reading some of Tim Skelly's history, and in it there was a brief
> > >discussion of a watchdog circuit (on a vector game) that reset
> > the machine
> > >as necessary. The purpose of this was to avoid the possibility
> > of shooting
> > >the electron beam into the side of the CRT in a game failure condition.
> > >There was no discussion of why this is bad...
> > >
> > >Anyone want to offer logical explanations or actual experiences with
> > >shooting the beam into the side of the CRT?
> > >
> > >Other than curiosity, I have some interest because my AD
> > displays slightly
> > >wider than the screen. I'm not aware of any width adjustment on the
> > >deflection amp -- are the X & Y gain on the main PCB used for H/V width
> > >adjustment?
> > >
> > >Thanks
> > >
> > >---
> > >Bret Pehrson
> > >mailto:bret@infowest.com
> > >
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Received on Wed Sep 20 18:34:16 2000