Re: VECTOR: TECH: Tempest PCB

"James R. Twine" <[email protected]>
Newsgroups gmane.games.arcade.vector
Message-ID <[email protected]>
Quoting "Steve P." <[email protected]>:
>
> The first one is working and playable.  It has an odd habit though
> of resetting for no appearent reason.  [...]

   I would suggest checking the power supply for excessive ripple and/or low
(+5) voltage.  Be sure to check the voltages both on the connector and on the
board someplace, like on a compnent or those little "quick disconnect looking"
test points.  Ripple you can check for right at the edge connector.

   I am guessing that the ROM/RAM tests all pass...

> Board number 2 has a graphics issue.  PCB coins up and plays but the display
> is squished into a bent line.  [...]

   The description "squished into a bent line" rings no bells for me...  Sounds
a little out of my area, but I would like to see that image, anyway.

   Peace!

-=- James R. Twine.
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