Bashing around on the keyboard, but no luck. Never got stuck like this before and apparently must keep typing till I hit a minimum number of characters. Okay, here we go: ...
SOURCE: I hit a wrong key and now my hp12c will not clear
My mother worked for HP in the 60's - 80's and when I became a banker she gave me one of the first HP 12c's. One of the things we first noticed was how quickly we went through batteries, or so we thought that was the reason why the calculator was giving us wrong answers.
My mother came up with a solution which I still use today. If you have tried all known solutions, turn off the calculator and take the cover off the battery and remove the battery. Using a standard paperclip, stretch out the clip so that you can touch both sides of the metal casing where the battery normally sits (sometimes you have to tough the casing and then something metal outside the casing). The best way I can explain, is that it is like grounding out an older car alternater. Put the battery back; put the cover back on, turn on the calculator. If you get a
"Pr Error" message this is good news. Simply select the CLX key and life is wonderful again.
Don’t ask me why this works …. But what the heck …. It’s been working for me for years. Good Luck
Sherry-Lee and Winston the Super Rescued Dog by the Sea
SOURCE: my calculator has a funny format
Try pushing and releasing [f], then [4]. This will give you 4 decimal places. (It follows that if you want 5 decimal places, push 5 instead of 4, etc). If that doesn't work, you can try taking the batteries out and putting them back in which should reset it to 2 decimal places, then set it where you want it following the above.
If it continues to malfunction I suggest taking the batteries out for 24 hours to allow a static discharge. This will lose anything you stored in the calculator, setting it back to how it came from the factory.
SOURCE: There is a "C" on the screen. I need to get rid of that C.
Press "STO" then "EEX" to toggle this function.
SOURCE: My HP12c calculator is not working.
There is a shop in Pennsylvania that does repairs. It is called FixThatCalc. Click the link.
Testimonial: "Wonderful! Thanks you so much for pointing me to this (probably somewhat unique) HP calculator repair shop."
SOURCE: Hi, I have an HP12C and for some reason the
Turn the calculator off. Hold down the period (decimal) key and hit the "ON" button at the same time.
93 views
Usually answered in minutes!
×