Re: Gravitar > Major Havoc conversion questions

From: Dave Langley <robotron_at_ntlworld.com>
Date: Sat Jan 10 2004 - 06:34:21 EST

At 11:42 pm 9 01 2004, you wrote:
>Hello,
>
> I have a Gravitar cabinet with an Amplifone monitor. My Major Havoc
> boardset plays in this cabinet, (using the Gravitar>MH conversion board)
> but my x size is too big and the picture still looks goofy, even after
> adjusting the X LIN and X size on both the MH board and the conversion board.

Have you tried adjusting the X and Y size on the Amplifone Deflection board?

> First, I don't think I can plug the MH boardset into my Gravitar
> harness without the conversion board. For Major Havoc, pin X on P20 is
> +22vdc, and pin W is -22vdc. For Gravitar, P20 pin X is not used, and Pin
> W is not used, and pin 3 is +22vdc and pin 4
>is -22vdc.
> Has anyone run MH in a Gravitar or Space Duel cabinet with an
> Amplifone monitor? Can I eliminate the conversion board? Any help would
> be appreciated.

I have space duel running on an Amplifone and the picture barrels out (as
opposed to , but only slightly. I can take pix if that will help. The
game did not originally have an Amplifone but came to me without a monitor
and I had enough parts to build and Amplifone but not a WG ...

I'm curious now, did you game have an Amplifone from the factory or was it
added later (like mine)? I'm only asking as I'd be interested in seeing
pictures of how everything for the monitor is mounted in a factor
Amplifone/Gravitar combination.

Dave Langley
www.robotron-2084.co.uk

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Received on Sat Jan 10 06:51:55 2004

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