Pole Position AR2 Question

dblacklock

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My Pole Position smoked the CR2 diode on the video board a few days ago. I tested the +5 power supplies from the AR2's and the one supplying the Video board was putting out 7.7 volts.

I adjusted the voltage down, and clipped off the diode, and the game works again. I am going to replace the diode before running the game any more.

My question is did something fail on the AR2 board to cause the voltage to go up to 7.7 volts, or has it always been that high, and the game just worked until the other day?

Several months ago I had repaired the AR2 by replacing the big power transistor, and I thought I checked the voltage, but maybe not.

Thanks

David
 
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