Re: Modern replacement power supplies for Apple ProFile hard drive?

Am Donnerstag, 26. Dezember 2013 22:30:09 UTC+1 schrieb groink:

Hey, Patrick! Let me run this past you quickly... The "power good" signal,
> aka "AC OK", from what I'm reading in the Profile service guide, is +5VDC.
> Can you validate this? Thanks!
>
 

This is correct. Its low-to-high transition is required to start the Z8, so in case your replacement supply does not provide it, you have to add a circuit like this:
http://www.interfacebus.com/rc-power-on-switch-debouncer.png

Regards
Patrick

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