Home▸ Forums▸ Recapped Color Classic does not power On from keyboard — #9▸ Recapped Color Classic does not power On from keyboard — #9
Post #9 by mcdermd
Source ForumRecapped Color Classic does not power On from keyboard — #9
CategoryHardware
Post DateFri, 17 May 2013 - 05:38
Original URLhttps://68kmla.org/bb/threads/recapped-color-classic-does-not-power-on-from-keyboard.27651/
Post
interfacebus.com[/url]"]Soft Power [Pin 2]On a Macintosh with software power control, the machine can be turned on by an ADB device.

This is accomplished by momentarily connecting pin 2 on the ADB connector (reserved) to pin 4 (ground).

Pin 2 should be kept grounded until pin 3 (+5 volts) comes up to power, letting you know that the machine has actually come on.

Some Macintosh machines do not have soft-power capabilities; on these machines, grounding pin 2 will have no effect.
Click to expand...
I had a IIcx repair with a corroded trace between the ADB ports on pin 2 that prevented soft power on one of the ports.

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