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On May 6, 7:47*am, Richard Casady wrote:
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 My 48G is made in Singapore. But, it's like my right hand, I have to have it! I like having four stacks visible for one thing. And it graphs. I've had it about 14 years or so, and it pains me to have to use a calculator that doesn't use Reverse Polish Notation. |
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