Re: B&K adaptor for Asteroids monitor rejuvination?

It is hard to explain, really. At all the joints of the vectors there are
random bright flashes (think Galaga star background). It is not connectors
nor the HV diode (I am certain it is NOT on the HV unit at all)...

----- Original Message -----
From: "John Robertson" <jrr@flippers.com>
To: <vectorlist@synthcom.com>; <vectorlist@synthcom.com>
Sent: Thursday, October 05, 2000 10:36 AM
Subject: Re: VECTOR: B&K adaptor for Asteroids monitor rejuvination?

> Do you mean the picture is jerking around-the vectors shift at random? If
> that is the case then you probably have the standard Monitor MotherBoard
> Curse-caked solder connections on the pins of the Molex connectors.
> Resolder ALL the pins on the MMB!
>
> If the screen changes focus or expands and contracts at random, yet the
> output screen voltage of the HV unit is stable then you have a bad HV
> diode, and need to track one down. The archive here has the sources of
those...
>
> John :-#)#
>
> At 11:52 PM 10/4/00, Gregg Woodcock wrote:
> >----- Original Message -----
> >From: "John Robertson" <jrr@flippers.com>
> >To: <vectorlist@synthcom.com>; <vectorlist@synthcom.com>
> >Sent: Wednesday, October 04, 2000 10:19 PM
> >Subject: Re: VECTOR: B&K adaptor for Asteroids monitor rejuvination?
> >
> >
> > > This is a standard B&W tube AFAIK. Where is the short? If it's between
the
> > > heater and the cathode you CAN'T fix it by rejuvenating, you will
destroy
> > > the heater. To repair that you need a 1:1 isolation transformer
designed
> > > for filaments.
> >
> >It is adapter #6 FYI. I don't know for sure it is a short but the screen
is
> >"sparkling" and
> >"zapping" like crazy. It is possible it is a problem on the deflection
> >board, though, since
> >the 470 didn't find any shorts...
> >
>
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>
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> Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
> http://www.flippers.com
> "Old pinballers never die, they just flip out."
>
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Received on Thu Oct 5 18:44:32 2000