[geeks] Sun CMOS PROM again..

[Jonathan Katz]

I'm still hacking away on this, quite literally. The issue is I'm
dealing with an Ultra 2 Prom, a 525-1417 ... it has 14 pins on each
side, not 12, so I'm not sure which pin is Ground. There is no obvious
"epoxy" on the side as with older-style chips, either. I'm working
away on the side with a Dremel trying to find the two find the two
leads to tie into. Is there something different for this chip?

On Wed, Dec 12, 2012 at 3:09 PM, Jochen Kunz <jkunz at unixag-kl.fh-kl.de> wrote:
> On Wed, 12 Dec 2012 19:41:38 +0100
> Walter Belgers <walter+rescue at belgers.com> wrote:
>
>> Jochen, do I understand correctly that you leave the old battery
>> basically where it is
> Yes.
>
>> and solder a new battery in parallel with it?
> No. The wire that comes up from the chip trough the resin to the top of
> the battery is cut just before it goes onto the battery. (It is
> typically spot welded to the top of the battery.)
>
> You can dig into the resin with a cutter or a Dremel like tool with
> samll miller. Carefully prepare the wire out of the resin and it will be obvious what I try to explain.
> --
>
>
> \end{Jochen}
>
> \ref{http://www.unixag-kl.fh-kl.de/~jkunz/}
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-- 
-Jon
Jonathan Katz, Indianapolis, IN.