17 May
2001
17 May
'01
12:22 p.m.
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(a)dunnington.u-net.com>
To: <classiccmp(a)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?
he
On May 17, 10:55, Claude.W wrote:
> I am considering slicing open the part epoxyed to the top of a 48T02
chip
to
"hollow"
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
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 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