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Home Forums 68kMLA 1400 keyboard connector pinout? — #1
Post #1 by Anonymous Freak
Source Forum68kMLA
CategoryHardware
Post DateWed, 6 Jan 2010 - 01:23
Original URLhttps://68kmla.org/bb/threads/1400-keyboard-connector-pinout.19510/
Post
Does anyone have the pinout for the internal keyboard connector on the PB1400?

The one that I had declared "dead" works just fine hooked up to external monitor and kb/mouse with the lid closed, it's only with the lid open that there are problems. (Which seems to negate its value as a 'mobile' machine.) I can get it to get through various stages of startup before it shuts down as if I had pushed the "On/Off" button. But with the lid closed, it ignores the internal keyboard, thereby ignoring that input.

I have tried to different keyboards, on two 1400's, and both work fine on one, and I see this behavior with both keyboards on the other. Which makes me wonder if the connector itself has a short in it. I don't see anything obvious, but would like to know if two pins are dedicated just to the on/off circuit. If so, I'll just disconnect 'em; and make do with using the power button on the back.

Also, it has the same symptoms even if I have *NO* internal keyboard plugged in. (Even with an external.)

(Bonus: If I get this figured out, then someone, instead of getting a 'dead' 1400c/166 will get a perfectly good 1400c/133.)

Finally, an update to my sales, I am taking machines in in half an hour for shipping estimates (and in one case, actual shipping.) This is, finally, certain.

mp.ls