Tonight I replaced the zener diode on the power supply for Solar Ride.
It is a pain to work on the power supply board - the main power transistor is soldered on through the chassis, so you have to desolder it before you can remove the board from its carrier. All things considered, though, it went fairly smoothly.
A new RottenDog power supply would set us back $100 or more. This fix cost $12 - and I got lots of spares, if it happens again.
But it works! The displays no longer share numbers. Now, I have to sort out the high scores - but for that I will probably just get a 3xAA battery holder and get some cheap NiCAD or NiMH batteries to stay in here forever.
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