Mac Restore CDs/Manuals

From: Don Maslin <donm_at_cts.com>
Date: Thu Nov 22 16:43:04 2001

On Thu, 22 Nov 2001, Tony Duell wrote:

> >
> > >I have a non working 128k unit I'd sure like to get around to fixing...It
> > >actually worked before I located a keyboard and mouse for it, I think I
> > >used the wrong type of keyboard cable. When I powered it up with the
> > >keyboard, heard a snap, and it didn't work anymore :/
> >
> > YIKES!

Has it been established through all this dialogue that the machine will
still boot? If so, I have missed it.
                                                 - don


> > Yeah, the keyboard cable is supposed to be straight pinned (or was that
> > cross pinned... no it was straight pinned). A standard phone cable is
>
> It's straight through. certainly.
>
> > cross pinned (or was that straight pinned... no was cross pinned... LOL).
> > If you use a standard phone cable, you will fry the keyboard controller
> > chip. I am sure that was the snap you heard.
>
> Yes, you swap round +5V and ground at the keyboard. This is likely to
> kill he microcontroller (8021 in early keyboards, 8048 in Mac+ keyboards
> IIRC).
>
> > You can always use the mouse and the Key Caps desk accessory, type by
> > clicking the letters, then choose cut and paste to move it to whatever
> > you are trying to type in... PITA, but it actually does work (I had to do
> > it once when my sister took the keyboard away from me, and I had to get a
>
> The keyboard protocol is documented in Inside Macintosh IIRC. I am
> wondering if it would be quicker to use the Key Caps DA to type a
> reasonable amount of text or convince some other machine to pretend to be
> a keyboard. Preactially, I hate repetitive jobs, so I'd probably have a
> go at the latter (and if the school paper had been anything remotely
> technical and I'd not finished it in time, I'd have explained my
> attempted hack to replace the keyboard and hoped that the teacher would
> understand :-)).
>
> > paper finished for school... it took me all night, but I finished it...
> > and promptly beat the stuffing out of her the next morning)
>
> Seems entirely reasonable :-)
>
> -tony
>
Received on Thu Nov 22 2001 - 16:43:04 GMT

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