treasured HP-29c displaying jiberish Message #1 Posted by Hal Bitton on 21 Aug 2005, 2:51 a.m.
I have a 29c which I bought new in the late 70's. When the last
battery pack for it finally died, I read on a forum (I think this one) that you could just use AA's, put into the battery pack.
I tried this and it worked great for a couple of weeks or so. Then, suddenly one day, it started displaying ridiculous results to keyboard entries (it usually displays 1500 when I hit CLX, and other number keys give random large positive and negative numbers. Occasionally it will display properly, but not very often.
Any ideas? Will cleaning any of the circuit boards help?
Thanks in advance for any help.
Hal
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