On Tue, 05 May 2009 12:26:01 -0700, jps wrote:

I replaced a cmos chip on my Raytheon scanner 5 years ago and I didn't
know a damned thing about it before cracking it open to diagnose. Was
able to search the net for clues, talked to a raytheon tech over the
phone and isolated the problem. Soldering iron, solder suck, solder
and a $2 cmos chip and the thing worked like new. Damned gratifying.

Replacing the board would've been $600.

My HP 45 calculator developed a bad display. I removed the 00 size
phillips screws, opened it up. and relaced the LEDs with a Radio Shack
part. Now they are made in Indonesia and glued together [HP48].

Casady