[rescue] FTGH: Macintosh LC475

[John Floren]

On Monday, October 11th, 2021 at 9:19 AM, Mark Benson <md.benson at gmail.com>
wrote:
> Re the battery thing - worth of note:
>
> = Indeed, if the PRAM batter is dead it wonbt turn on, but therebs a neat
>
> dodge for it. If you turn it on, let the disk settle down then very quickly
>
> flip it off then back on it will start up, as the PRAM subsystem will have
>
> sufficient voltage to be fooled into thinking it has the right voltage.
>

Anyone who has a soldered-on PRAM battery owes it to themselves to *at least*
clip the leads and get it out of there. I've got an SE/30 sitting on the shelf
because its battery exploded... that gunk sat on there so long that a pair of
ICs and a crystal just fell right off with a little gentle toothbrush
scrubbing. Luckily I got to the *other* SE/30 before its battery blew up. I
swapped in a CR2016 holder with long leads so I can change the battery without
having to take the motherboard out (a knuckle-busting process).

john