VECTORLIST - The Mailing List For The Technical Discussion of Vector-Based Arcade Games

December_1998
Tempest screen "bowing"


From: Mark Jenison ( )
Date: Mon Dec 07 1998 - 13:23:45 CST


Hi all,

I recently finished restoring a Tempest and noticed that the top and bottom of
the screen were bowing in like this (ASCII art):

|\____/|
| |
| |
| |
| ____ |
|/ \|

Well, not that drastically, but hopefully this gets my point across.

Anyway, at first I figured it was a monitor problem, so I tested it with
another monitor and it still does the same thing. I can't adjust it out with
the BIP and linear pots (or any pots for that matter), so I was wondering if
any of you might have an idea what might be wrong with the board or how I could
fix this.

Thanks!

----------------------------------------------------------------------
Mark Jenison E-mail address:
Cellular Infrastructure Group Motorola--Arlington Heights, IL
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