The following warnings occurred:
Warning [2] count(): Parameter must be an array or an object that implements Countable - Line: 795 - File: showthread.php PHP 7.4.33 (FreeBSD)
File Line Function
/showthread.php 795 errorHandler->error




HP Forums / HP Calculators (and very old HP Computers) / General Forum v / HP-12C 1985 vintage repair

Post Reply 
HP-12C 1985 vintage repair
08-01-2019, 12:44 AM
Post: #1
pvanloon Offline
Junior Member
 		Posts: 1
Joined: Aug 2019
HP-12C 1985 vintage repair
I have a HP-12C(serial #2512A03269) that I have had since 1985. It was sitting in my desk for several years, no batteries installed. Today I bought new batteries and installed them. This is what showed up in my window:

-8,8,8,8,8,P,8,A,8,8,
USER f g BEGIN GRAD D.MY C PRGM

I have attached a photo.

I am wondering if my calculator is beyond redemption. I hope it is not, as I very much appreciate it.

I have tried the clearing of memory - nothing. I even try to turn it off but it stays on with that stuff still in the window. It will shut off in time, but then when I hit the ON button I get the same stuff.    
Find all posts by this user
Quote this message in a reply
Post Reply 


Messages In This Thread
HP-12C 1985 vintage repair - pvanloon - 08-01-2019 12:44 AM
RE: HP-12C 1985 vintage repair - teenix - 08-01-2019, 03:39 AM
RE: HP-12C 1985 vintage repair - rprosperi - 08-01-2019, 12:46 PM



User(s) browsing this thread: 1 Guest(s)

Contact Us | The Museum of HP Calculators | Return to Top | Return to Content | Lite (Archive) Mode | RSS Syndication