Slicing open the top of a 48T02 Sun Sparc chip to replace b

From: ajp166 <ajp166_at_bellatlantic.net>
Date: Sat May 19 21:58:44 2001

> From: Geoff Reed <geoffr_at_zipcon.net>

> I downloaded the datasheet for the 48t02's, i think i may have a
handful of
> 32.768 xtals here so I'm looking ar chopping the tops off the bad chips
I
> have and taking protoboard and refitting them with a new xtal and
> batteryholder package that can take a replacable lithium cell. :) I
> sacrificed one yesterday to the great dremel in the sky to see how the
top
> was put together...


Your sound like serious ly damaging the top. First you can locate the
battery with a small magnet as it's steel/nickel cased. Then grind
down the the approximate center and do not grind metal away if you
can. then grind to the edges and pry old battery out. I've done a few
of these and it's that simple. Making it rocket science is unneeded.

FYI the top carries, diode, battery, crystal and two capacitors.

Allison
Received on Sat May 19 2001 - 21:58:44 BST