RE: Follow up 1084s question

I didn't see the V-HOLD pot on the main board when I pulled mine apart.
(I just may have missed it). That being said, simply adjusting the
H-HOLD may actually solve your problem. Have you tried that?

JB

--James Bright
www.QuarterArcade.com
Restored Arcade Games for your Home

> -----Original Message-----
> From: owner-techtoolslist@flippers.com [mailto:owner-
> techtoolslist@flippers.com] On Behalf Of Matthew Rossiter
> Sent: Tuesday, March 02, 2004 11:15 PM
> To: 'James Bright'; techtoolslist@flippers.com
> Subject: RE: Follow up 1084s question
>
> Is there a way to install a V-Hold pot? I couldn't seem to find one
on
> mine. My pac-man board slowly scrolls vertically on this monitor.
>
> Matt
>
> > -----Original Message-----
> > From: owner-techtoolslist@flippers.com [mailto:owner-
> > techtoolslist@flippers.com] On Behalf Of James Bright
> > Sent: Tuesday, March 02, 2004 6:41 PM
> > To: techtoolslist@flippers.com
> > Subject: RE: Follow up 1084s question
> >
> >
> > Just a quick follow up note.
> >
> > On my 1084S, it's pot R225, "H-HOLD" and according to my DMM, it's
30K.
> > I mounted a 25K pot (more than adequate) externally on the casing.
Works
> > well. I can't always get Tron to sync up, but I am also using boards
> > that don't work 100%. Usually I can get close enough though.
> >
> > I just ran a few lines through the plastic case and mounted it using
a
> > bracket and a small bit of prototyping board.
> >
> > JB
> >
> > --James Bright
> > www.QuarterArcade.com
> > Restored Arcade Games for your Home
> >
> > > -----Original Message-----
> > > From: owner-techtoolslist@flippers.com [mailto:owner-
> > > techtoolslist@flippers.com] On Behalf Of James Bright
> > > Sent: Tuesday, March 02, 2004 10:14 AM
> > > To: techtoolslist@flippers.com
> > > Subject: Re: Follow up 1084s question
> > >
> > >
> > > You didn't by chance see a similar pot labeled H-FREQ? I believe
> > that's
> > > what
> > > it was labeled on the board itself.
> > >
> > > Thanks for the link. If I have time, I'll see if I can set
something
> > up
> > > this
> > > weekend (going out of town on business so it may be a couple of
days).
> > >
> > > JB
> > >
> > > --James Bright
> > > www.QuarterArcade.com
> > > Restored Arcade Games for your Home
> > >
> > >
> > > ----- Original Message -----
> > > From: "Franklin Bowen" <Franklin@Bowen.net>
> > > To: "James Bright" <james@quarterarcade.com>;
> > <techtoolslist@flippers.com>
> > > Sent: Tuesday, March 02, 2004 9:59 AM
> > > Subject: Re: Follow up 1084s question
> > >
> > >
> > > > I agree, outside of sync problems, the monitor works great for
vids.
> > > Let
> > > > me know how it works as I'm interested too. Looking at the
> > schematics I
> > > > found (http://staff.washington.edu/rrcc/uwweb/1084P/):
> > > >
> > > > Horiz. Sync, R437, 22K
> > > > Vert. Sync, R331, 47K
> > > >
> > > > HTH
> > > >
> > > >
> > > > At 07:00 AM 3/2/2004, James Bright wrote:
> > > > > > This requires removing the case and finding the H.FREQ pot..
> > this is
> > > > > > often near the front of the tube on the right (if you looked
> > from
> > > the
> > > > > > back).
> > > > >
> > > > >
> > > > >I had this just happen with Tron (had to build a simple circuit
to
> > > combine
> > > > >/H and /V sync too...).
> > > > >
> > > > >I put everything back together and tested it with another JAMMA
> > board
> > > (MKII)
> > > > >and it wouldn't sync. I'm thinking I'm just going to mount that
pot
> > on
> > > the
> > > > >case so that I don't have to keep pulling it apart. Anyone done
> > that
> > > before?
> > > > >It's a tiny trim pot and I had this idea after I reassembled
> > > everything.
> > > > >Anyone know what the value of the pot is?
> > > > >
> > > > >Otherwise using this monitor has been great.
> > > > >
> > > > >JB
> > > > >
> > > > >--James Bright
> > > > >www.QuarterArcade.com
> > > > >Restored Arcade Games for your Home
> > > > >
> > > > >
> > > > >If you ever want to (un)subscribe yourself with TTL, you can
send
> > mail
> > > to:
> > > > ><Majordomo@flippers.com>
> > > > >with the following command in the body of your email message:
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> > > >
> > > > --
> > > > Franklin Bowen (Franklin@Bowen.net)
> > > > http://fmbbowen.com:39353
> > > >
> > > >
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Received on Tue Mar 2 23:28:27 2004