mdeverhart
Well-known member
Based on the service guide and the design note, I’m pretty sure it’s a PCB with the two power buttons on it (rear and keyboard), and a few traces. According to the design note, the pin out of the connector includes GND, unswitched 5V, a couple of keyscan lines to the power manager for the power buttons, and a CPU on/off signal to the power manager.There must be something there with at least the power button on it.
I’ve not seen one, but a crummy picture is here: https://www.macrepaircentral.us/powerbook-200-series-duo-210-duo-230-250-270c/series-upgrade.html