This guy was DOA. I was aware of it though before it arrived. I traded my very own Rotophase for this one knowing it needed to be repaired. It turned out to be an easy repair. The protection diode had opened sending all voltage to ground.

Here is the diode in the middle. If you click and zoom on it you can see the burnt area on the board:

Here’s the busted diode with its 1N4002 replacement:

And the new 1N4002 installed:

Done!

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