How repairable is this?



#2

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)...


#3

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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