Need help with Challenge Micro (Pong clone)

Dishfarmer

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Mar 3, 2012
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Hi Everyone
I am new to this forum my name is Aaron from Brisbane Australia. Have to say learnt more reading posts here in three hours then what I have other places in years. I usually just focus on board repairs becuase I love the challenge? Bad pun..

Up the creek on this board above, cant find a schematic andf all my rails are +4.7v not good. When it does work the LHS trail of the paddle does not dissolve s the paddle moves down. As well there is no score count. Have already found two dead chips using an HP logic comparator. Anyone a resident expert on these units? Will have to clutch straws shortly.

See you around the forum
Aaron.
 
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