Tron has missing sprites!!!

tronwong

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I recently got my game working again after putting in a new switching power supply and switching out the game board cables. The game had been working great for about a week, but one day the sprites suddenly disappeared. What would be the cause of something like this?

Edit: The game plays completely fine, it's just that the sprites are missing for the player character and the enemies so it kind of renders the game unplayable.

Light Cycles game all I see are the light trails.
Spider game I don't see the spider or the player/character.
Tanks I see the entire grid just fine, but I don't see any tanks.
MCP cone I don't see anything at all.
 
Last edited:
Your video board is not running. Check the clock and addressing logic on the video board. I had one of these that had a bad clock buffer that had the exact same problem.
Good luck.
Andrew
 
Your video board is not running. Check the clock and addressing logic on the video board. I had one of these that had a bad clock buffer that had the exact same problem.
Good luck.
Andrew

Not to sound like a grasshole, but how does one check the clock and addressing logic on a video board?
 
I found one.

Sprite.png
 
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