Re: Red Baron issues

You should not use an vintage XY monitor to test boards.

If you have access to a scope, use it. It is not that hard getting to know
basic operation.

Even if you don't have a scope, use your DMM to text the XY (and Intensity)
outputs for DC. Basically you should not find any. A stiff + or - 15V at the
output is a guarantee to blow your deflection board.

Cheers,

Mendel

----- Original Message -----
From: "utahtaper" <utahtaper@comcast.net>
To: <vectorlist@vectorlist.org>
Sent: Monday, September 26, 2005 3:58 AM
Subject: Re: VECTOR: Red Baron issues

> The monitor was a working monitor from my Asteroids. I took it out to test
> in the RB and it smoked the two trannys as soon as I turned it on. I
> replaced them and got it back up an running in my Asteroids again but now
I
> am afraid to test it in my RB again. Could there be something wrong with
the
> power brick that would affect the monitor? Maybe Big Blue?
>
> ----- Original Message -----
> From: "peter jones" <highwayman2000@mail.ru>
> To: <vectorlist@vectorlist.org>
> Sent: Sunday, September 25, 2005 7:21 PM
> Subject: Re: VECTOR: Red Baron issues
>
>
> > i'v never heard of anything like that,
> >
> > in theory if the deflection went full-swing it could put too much
current
> through the transisters but it's unlikely.
> >
> > does it work before they blow, or is it a case of switch-on and bang!
> > i would be more suspicious of something wrong in the monitor like the
> pre-driver circuits.
> >
>
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Received on Mon Sep 26 18:38:11 2005