Re: Asteroids Deluxe with WG19V2000 problems

If there is a black level adjustment on the WG, I'd love to know about it!
----- Original Message -----
From: Jess Askey <jess@magenta.com>
To: <vectorlist@lists.cc.utexas.edu>
Sent: Thursday, December 09, 1999 5:25 PM
Subject: Re: Asteroids Deluxe with WG19V2000 problems

> Isn't there a 'black level' adjustment somewhere on those G-05's
somewhere. It sounds like
> this may fix it OR there is a problem on the biasing of the input levels
somewhere along
> the way.
> jess
>
> Josh Wirth wrote:
> >
> > This has got to be fixable... doesn't it? Besides, if I turn the
> > brightness up to see the expected vectors, I get retrace vectors as
well.
> > That's not going to fly :). Thanks, though.
> > ----- Original Message -----
> > From: Mark Jenison <jenison@cig.mot.com>
> > To: <vectorlist@lists.cc.utexas.edu>
> > Sent: Thursday, December 09, 1999 4:43 PM
> > Subject: Re: Asteroids Deluxe with WG19V2000 problems
> >
> > > Hi,
> > >
> > > I've had two B&W vector monitors with the same problem over the years,
and
> > > asked about how to fix this very same problem. After finding nothing
> > which
> > > helped, I just chalked it up to "the monitor is getting old", and
lived
> > with
> > > the dot in the middle of the screen. Fortunately for me, there was a
hole
> > > burned in the phospher at the center of the tube, so I positioned it
such
> > that
> > > the dot landed right in that hole, and viola! No more dot! :-)
> > >
> > > Mark Jenison
> > > Always looking for the simple man's answer
> > >
> > > On Dec 9, 12:16pm, Josh Wirth wrote:
> > > > Subject: Re: Asteroids Deluxe with WG19V2000 problems
> > > > If I turn down the brightness to the point where the white dot is
gone,
> > I
> > > > see only the dot intersections. If I turn it up to the point where
the
> > > > expected lines are visible, I see the retrace lines, also. I am
> > thinking
> > > > that maybe the HV cage and the tube are fine (I swapped out another
> > tube.)
> > > > I am going to borrow an oscilloscope and check the signal coming
off. I
> > am
> > > > assuming the the best place to check this is on the Z OUT tab. My
> > schematic
> > > > shows pin M on the edge connector as Z OUT but I have placed it on
K(?).
> > I
> > > > shorted pins 9&10 on the 12 pin connector at one time and blew the
two
> > 3.3
> > > > ohm resistors there (I am not looking at the board.) Could this
have
> > hosed
> > > > something else down the line?
> > >
>
Received on Thu Dec 9 16:38:30 1999