Shapeoko 4 Controller V3.0C – POWER CON 4-Pin Pinout

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Hi everyone,

I’m trying to use a Shapeoko 4 V3.0C controller board on my Shapeoko 3 XXL, but I don’t have the original power button harness.

Does anyone have the pinout or wiring diagram for the 4-pin connector labeled POWER CON?

I’d like to identify the power switch and LED connections so I can safely power on the board without the original harness.

Any help would be appreciated. Thanks!

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UPDATE: I measured the resistance between each of the pins in the molex connector and the power supply’s +ve and -ve terminals. I found that the two top pins are tied to ground and the bottom left is tired to the +ve terminal through a diode.
When powered, the bottom left pin reads 24v differential between each of the three pins. So, I’m tempted to bridge the two bottom pins but I don’t wanna burn the board.
Any comments?