Re: Asteroids Deluxe with WG19V2000 problems

Are you talking about the X-out and Y-out test points?

The blooming has stopped... What I don't understand is: when it blooms,
everything is drawn perfectly (no retrace lines and no dot) but when the
monitor is steady, I get retrace lines and the dot.

----- Original Message -----
From: John Robertson <jrr@flippers.com>
To: <vectorlist@lists.cc.utexas.edu>
Sent: Tuesday, December 14, 1999 2:13 AM
Subject: Re: Asteroids Deluxe with WG19V2000 problems

> Next scope the outputs of the DACs when you have the game in test mode. I
> find the CMOS switches can cause weirdness, and they are my next suspects.
>
> John :-#)#
>
> At 12:34 AM 12/14/1999 -0500, you wrote:
> >I just checked it out... I had +15.03 V on one, -14.89 Von another, and
+5
> >V on the other.
> >
> >Where would you look next?
> >
> >Thanks again,
> > Josh
> >----- Original Message -----
>
From: John Robertson <jrr@flippers.com>
> >To: <vectorlist@lists.cc.utexas.edu>
> >Sent: Monday, December 13, 1999 10:19 PM
> >Subject: Re: Asteroids Deluxe with WG19V2000 problems
> >
> >
> > > The supply I am speaking of is on the game board, there are three
voltage
> > > regulators for the DACs, a +5 a +15 and a -15VDC regulator. If the -15
is
> > > dead, then you would only get positive deflection. Just one of many
> >suspects...
> > >
> > > Your blooming problem is most likely the HV diode, this is in the
middle
> >of
> > > the lead that connects to the side of the picture tube. You can find
> > > replacements in older small B&W TV's, you can pick up from Salvation
Army
> > > etc...maybe...perhaps someone here has some experience with this line
of
> > > attack (on finding old HV diodes) as I still have a couple of NOS
ones,
> > > that are spoken for our in-shop use...
> > >
> > > John :-#)#
> > >
>
>
> John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
> Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
> http://www.flippers.com
> "Old pinballers never die, they just flip out."
>
Received on Tue Dec 14 09:36:35 1999