Dallas module battery replacement...

From: Aaron Christopher Finney <af-list_at_wfi-inc.com>
Date: Sat Apr 8 15:35:21 2000

That's exactly what my friend did - ground away *carefully* with a dremel
until it was exposed.

Jeff (Technoid) on this list mentioned in the Sun NVRAM thread that he'd
done this successfully...maybe he's got some practical advice for you.

Cheers,

Aaron

On Sat, 8 Apr 2000, Tony Duell wrote:

> >
> > Hi,
> >
> > Heard of few getting into theirs to hook into a new battery when
> > the old battery expired.
> >
> > Drilled short depth in 3 places hoping to find cavity within and
> > didn't find it. It is completely filled with epoxy to the brim. How
> > did one manage to expose theirs to get at the battery itself?
>
> I seem to remember that these devices consist of a norml IC package
> (containing the silicon die) with connections on top (as well as the
> usual pins along the sides to go into the PCB) for the battery and crystal
> (?). The latter parts are potted in epoxy on top of the normal package.
>
> I am told (although I've never tried this) that if you carefuly cut/grind
> away at the top of the device with (say) a Dremel tool, you can expose
> the connections without damaging any of the parts. Then disconnect the
> old battery and wire up a new one.
>
> As I said I've not tried this, and you'll probably ruin the first few
> devices you look at, but it might be a starting point.
>
> -tony
>
Received on Sat Apr 08 2000 - 15:35:21 BST