SPARCstation 20 with SCSI2SD

[systems_glitch]

For fully potted parts like the 48T59, I make four cuts along the sides of
the encapsulation, on the short ends I cut until I hit metal (pins coming
up from the IC to the crystal/battery). On the long ends I just cut deep
enough to get through the pot shell and into the potting compound a little.
Then I put a small chisel or large screwdriver in one of the cuts on the
short ends, and strike it with a small ball peen hammer. This will usually
split the encapsulation right off, but sometimes you have to flip it over
and do the same on the other short end.

I probably need to do a writeup on fully potted parts, like the 48T59 and
DS1287.

Thanks,
Jonathan

On Tue, Nov 27, 2018 at 6:52 AM Al Kossow via cctalk <cctalk at classiccmp.org>
wrote:

>
>
> On 11/26/18 2:42 PM, systems_glitch via cctalk wrote:
> > I'm not sure, I don't personally see it as something worthwhile to
> > investigate when you can just rebuild the old NVRAMs.
>
> What is the best way to decap 28 pin parts? 24-pin ones come apart pretty
> easily but they don't leave a gap on the 28 pin ones.
>
>
>