Re: Asteroids graphics problem

Yes - I'm with Chris on this... Check with an XY scope first....

Could it be a bad HV unit or a bad power brick ( dodgy big blue ? ) or maybe
a problem with the Z output ?

Cheers, Colin

----- Original Message -----
From: "Christopher X. Candreva" <chris@westnet.com>
To: <vectorlist@vectorlist.org>
Sent: Thursday, June 12, 2008 6:42 PM
Subject: Re: VECTOR: Asteroids graphics problem

> On Thu, 12 Jun 2008, Joe Magiera wrote:
>
>> http://www.tollianweb.com/uc/Asteroids_problem.jpg
>
> I'm thinking the op-amps the vector output section.
>
> The best test is to use an XY scope and back trace the signal through the
> vector generator circuit. With small lead clips, you can view the output
> of
> the DACs directly. If the picture is OK there, keep moving through the
> circuit until you find where it goes bad.
>
> ==========================================================
> Chris Candreva -- chris@westnet.com -- (914) 948-3162
> WestNet Internet Services of Westchester
> http://www.westnet.com/
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Received on Thu Jun 12 19:32:04 2008