Re: VECTOR: TECH: Major Havoc

Hi.

Thanks for the reply.  Yes, the monitor is good.  Tempest works just fine on 
it.  I bulletproofed it with a Bob Roberts deluxe parts kit and a LV2000. 
:)

I've checked the voltages from the test pads on the PCB and all are OK.

Is it possible that the Tempest adapter card might have a bad chip?  I know 
it controls the pincoushining, but is there more to it than that?

Also, can I plug the MH PCB into a Space Duel harness w/o the adapter card 
as a way of testing?  I searched Dejanews and Clay Cowgill mentions that you 
can plug the MH into a SD harness with no ill effect.

Does anyone work on MH boards?  I'd like to not tinker with myself since it 
seems that it's going to be a little involved and my tech skills aren't that 
hot.  Alex at ElektronForge already said no.  Joe Bachmann hasn't been heard 
from in months..   Anyone else?

 Thx!


-Steve P.


----- Original Message ----- 
From: "Christopher X. Candreva" <[email protected]>
To: <[email protected]>
Sent: Monday, January 03, 2005 4:46 PM
Subject: Re: VECTOR: TECH: Major Havoc


> On Fri, 31 Dec 2004, Steve P. wrote:
>
>> Need some help.  My working Major Havoc PCB crapped out on me.  It was 
>> working
>> fine and died in the middle of a game - one minute all was fine, the 
>> next,
>> this:
>>
>> http://set-in-led.0catch.com/images/mh1.jpg
>
> OK, I'm going to assume you've  checked the monitor. If you haven't -- do
> so. :-) (Different board on the monitor, or this board on a different
> monitor. Or -- hook up a scope).
>
> From what I can see in this picture, it looks like an analog problem. Why 
> do
> I say that ? The lines I see are curved and fuzzy. Digital problems 
> usually
> show up as fully formed vectors in the wrong places. It also looks like 
> it's
> drawing on the side of the tube, which again to me indicates analog.
>
> At the risk of sounding repetative :-)  Start at the test points with a
> scoope and work back until you find a good signal.
>
> Checking all voltages, as someone suggested, is also a good first step.
>
> Hmm, sounds like the makeing of a FAQ -- where to start with DVG/AVG
> problems.
>
>
> ==========================================================
> Chris Candreva  -- [email protected] -- (914) 967-7816
> WestNet Internet Services of Westchester
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