Track and Field - runners missing!

BDockham

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Nov 15, 2004
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Gilford, New Hampshire
I need some advice on my Track and Field Board - the runners originally kept glitching - I thought it could be the power supply, but I tried my Hypersports board and it was fine, characters and everything.

I then reseated all the chips to make sure they were all in and no bent pins - now there are no characters all together. All the screens come up, sounds, etc, but no people. Which chip do I need to check? I haven't really needed to mess with boards before, so any help is greatly appreciated!
 
now there are no characters all together.
I just fixed a super basketball today that had no characters. Unfortunatly, it's not as simple as a single chip. By grounding various pins on various chips, I could make the charaters disappear by touching any one of 30 or so pins. You are going to need an oscilloscope to figure this out most likely. Do you have one?
 
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