Asteroids horizontal collapse after 20 mins or so

From: Kevin Reynolds <tpresence_at_hotmail.com>
Date: Sun Oct 27 2013 - 12:32:25 EDT

Greetings all,
I decided to just take a chance and power up the asteroids cabinet, and it worked perfectly for about 20 minutes.  After warming up, the video signal collapses horizontally (A vertical line in the center of the screen with different levels of brightness (guess the signal is stacking where ships, asteroids, and other video output is displayed).  If I shut the system off and let it sit for a bit, it works perfectly again.  Before the video collapses, I can see some very slight wavering of the screen at the edges, but its nearly inperceptible.
Any cues on what I should look at?  Other than this problem, it seems like everything is working.  Audio is working (although the speaker might need tightened, its a bit raspy), the buttons work.  I have it on free play, so I don't know if the coin mech is working.  This coin mech is the original circular model.  In fact, I'm pretty sure this game is the original version, without the copyright date on the display.
Thanks all,Kevin
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Received on Sun Oct 27 12:32:27 2013

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