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 :-#)#

At 08:48 PM 12/13/1999 -0500, you wrote:
>Is that part of the HV unit? The regulator board at the bottom of the
>cabinet? Where would I check it?
>Thanks,
> Josh
>----- Original Message -----

From: John Robertson <jrr@flippers.com>
>To: <vectorlist@lists.cc.utexas.edu>
>Sent: Monday, December 13, 1999 8:22 PM
>Subject: Re: Asteroids Deluxe with WG19V2000 problems
>
>
> > Have you checked the -15VDC supply?
> >
> > John :-#)#
> >
> > At 07:13 PM 12/13/1999 -0500, you wrote:
> > >OK anyone who is still interested.... I hooked up an oscilloscope to the
> > >Z-out of the main board and it looks as though the signal only bounces
>from
> > >0 to about 2.2 Volts... so I am going to assume that this means the main
> > >PCB is not signaling correctly... any clues on what to check first?
> > >
> > >Thanks for letting me waste your time,
> > > Josh
> >
> >
> > 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."
> >

  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 Mon Dec 13 21:18:05 1999