Hi all
Tacking on a new 3VDC source to a dead battery on a NVRAM Sun chip...
I could not find pics of this anywhere, so while I was doing it, I took a
few pics.
http://computer_collector.tripod.com/repairs/NVRAMHAK/sunnvramhak.html
Most with a steady hand a some soldering experience should be ok.
Claude
http://computer_collector.tripod.com
----- Original Message -----
From: Pete Turnbull <pete_at_dunnington.u-net.com>
To: <classiccmp_at_classiccmp.org>
Sent: Thursday, May 17, 2001 2:53 PM
Subject: Re: Slicing open the top of a 48T02 Sun Sparc chip to replace
battery is that thing hollow or filled with epoxy?
> On May 17, 10:55, Claude.W wrote:
>
> > I am considering slicing open the part epoxyed to the top of a 48T02
chip
> to
> > replace or hook up a new 3VDC source. I dont wanna buy a new chip....
> >
> > My plan is to use a Dremel type cutting wheel and do a "lobotomy" on the
> > module fitted on top of the chip.
> >
> > Then, either connect a new 3VDC source to this (2 alkalines in a battery
> > holder) or simply replace the cells inside.
>
> It's a single lithium cell inside
>
> > If the thing (the top module with the batt and osc) is not filled with
> epoxy
> > I imagine this can be done...does anybody know if that module is
"hollow"
> > and removing the top will reveal the components inside...??? Or will I
> just
> > be cutting through solid plastic/epoxy???
>
> It's solid. My colleague James Carter did this for one of his Suns, and
he
> has a picture somewhere, showing a (replacable) battery fitted to the top.
> I can't find the picture on his web pages, but he mentioned it recently
in
> response to a similar post on this list, so look through the archive...
>
> --
> Pete Peter Turnbull
> Network Manager
> University of York
Received on Thu May 17 2001 - 16:22:26 BST