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How repairable is this?

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How repairable is this?


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David Ramsey Offline
Senior Member
Posts: 521
Threads: 72
Joined: Jul 2007
#3
11-16-2002, 11:41 AM

Ebay item #800562411, a 9820 desk calculator whose display shows "NOTE 1" whenever a key is pressed. Is this junk, or something I might be able to get working (I possess minor soldering skills and have replaced LED displays in some HP pocket calcs)...

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David Smith Offline
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Posts: 1,788
Threads: 36
Joined: Aug 2007
#4
11-16-2002, 02:40 PM

Most of the chips in HP calculators are custom HP chips, also no schematics, etc are available. Without a spare unit for parts/swapping chances of getting a dead unit working are very slim.

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