The Museum of HP Calculators

HP Forum Archive 15

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HP15C Help
Message #1 Posted by Victor Silva on 27 Apr 2005, 7:25 p.m.

I sold an HP15C on eBay and I am not really familiar with its operation. It did pass the self tests as shown here:

(ON X) and the keyboard test (ON -:-).

See:

http://www.rskey.org/~mwsebastian/selftest/hp_test.htm#voyager

for testing details.

When the winner received it he couldn't even perform rudimentary arithmetic correctly (like 5 ENTER 15 X). I had him clear the complex flag and now that works.

However, both SQRT and X^Y produce ERROR 4. This is confusing because the manual states ERROR 4 is a programming error, I would expect ERROR 0 during a bad SQRT operation.

Thanks for any help you can provide.

Regards, Victor

Edited: 28 Apr 2005, 1:22 p.m. after one or more responses were posted

      
Re: HP15C Help
Message #2 Posted by Namir on 27 Apr 2005, 7:50 p.m.,
in response to message #1 by Victor Silva

Victor,

Have your client clear User mode by pressing [f][RCL]. He should be fine.

Your client needs manuals for the HP15C.

Namir

            
Re: HP15C Help
Message #3 Posted by Victor Silva on 27 Apr 2005, 8:42 p.m.,
in response to message #2 by Namir

Thanks for your help. I agree he needs to read the manual.

Victor

                  
Re: HP15C Help
Message #4 Posted by Arnaud Amiel on 28 Apr 2005, 4:31 a.m.,
in response to message #3 by Victor Silva

The manual is available on the Bring Back the 15C website. It is here.

Arnaud

                        
Re: HP15C Help
Message #5 Posted by Namir on 28 Apr 2005, 6:39 a.m.,
in response to message #4 by Arnaud Amiel

Excellent!! Now folks have no excuse to ask how to operate the 15C.

                              
Re: HP15C Help
Message #6 Posted by Victor Silva on 28 Apr 2005, 10:31 a.m.,
in response to message #5 by Namir

Thanks, I found that also. I sent the link to my client but apparently he is completely unfamiliar with the HP15C. He is treating every unexpected operation of the calculator as a possible failure and asking me for support.

Reagrds, Victor

                                    
Re: HP15C Help
Message #7 Posted by Arnaud Amiel on 28 Apr 2005, 11:54 a.m.,
in response to message #6 by Victor Silva

Maybe you should charge him for tech support unless it really is a failure?

Arnaud

                                          
Re: HP15C Help
Message #8 Posted by Victor Silva on 28 Apr 2005, 1:31 p.m.,
in response to message #7 by Arnaud Amiel

Arnaud,

Yes, I should charge, but that might precipitate a negative feedback on eBay. I always give people a positive as soon as they pay me because in my opinion they have fulfilled their obligation to me.

It's a pity most others don't operate in the same way. After getting burned a few time I have become disillusioned with eBay, particularly they way they responded to my emails. They pretty much said go away and let us continue to make money.

--Victor

      
Re: HP15C Help
Message #9 Posted by sjthomas on 27 Apr 2005, 10:36 p.m.,
in response to message #1 by Victor Silva

I would advise him to start fresh from a master clear (ON -, I believe)

      
Re: HP15C Help
Message #10 Posted by Jeroen on 28 Apr 2005, 3:20 a.m.,
in response to message #1 by Victor Silva

The buyer doubtlessly spent $250+ on this calc and doesn't even know basic RPN operations. What a waste...

            
Re: HP15C Help
Message #11 Posted by james summers (uk) on 28 Apr 2005, 8:33 a.m.,
in response to message #10 by Jeroen

Yes, but what a testament to the appeal and desirability of the traditional HPs!

                  
Re: HP15C Help
Message #12 Posted by Chan Tran (USA) on 28 Apr 2005, 12:54 p.m.,
in response to message #11 by james summers (uk)

I wonder why someone would spend extra money on a used calc that he has trouble using. Why not just get a new TI?

                        
Re: HP15C Help
Message #13 Posted by Victor Silva on 28 Apr 2005, 1:21 p.m.,
in response to message #12 by Chan Tran (USA)

Well, he did claim to use an HP32SII. Those two models are quite different and he should have spent some time studying the manual.

I hate dealing with eBay. I sold the HP15C as a favor to a friend who has no experience selling on eBay. The only good thing about it is the selling prices do get high.

--Victor

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