If you're going to hack this in, and if there's no other current limiting, be
sure to include a fuse for, say, 1/2-1 ampere in series with the diode, else
the diode or, worse, something else, e.g. a trace or a cable, will become the
fuse in case of a short.
Dick
----- Original Message -----
From: "Tony Duell" <ard_at_p850ug1.demon.co.uk>
To: <classiccmp_at_classiccmp.org>
Sent: Sunday, February 24, 2002 12:49 PM
Subject: Re: Apple SCSI TermPWR; Was Re: This is funny (ebay)
> > Since the Apple SCSI doesn''t provide Termpwr, and since Termpwr is
supposed
>
> In the case of the Apple Mac+ (and maybe others), it is possible to get
> it to source Termpwr. You have to solder a suitable diode at position
> CR1 on the logic board ('digital board', whatever). This will provide
> Termpwr on pin 25 of the DB25 connector.
>
> It's clear that's what position CR1 is for on the board, so no idea why
> Apple didn't fit it as standard.
>
> -tony
>
>
Received on Sun Feb 24 2002 - 16:45:48 GMT