The Museum of HP Calculators

HP Forum Archive 11

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Bought in haste...>>
Message #1 Posted by dbusse on 7 Apr 2003, 3:18 p.m.

In what seemed like a shady DEAL on the wrong side of the tracks, I just bought an HP 15C for 36 bucks. What's wrong with it you ask. Bezel a bit scuffed and scratched. Keyboard dusty. Missing HP 15C emblam. However, self & keyboard tests pass. Does anyone know where I can get an "HP 15C" emblam? Can anyone direct me to instruction on cleaning the unit myself or, do you recommend having it done professionally?

Thanks much for any help, David

      
It's junk. You'd better sell it to me for $20... >>
Message #2 Posted by Jeremy on 7 Apr 2003, 7:51 p.m.,
in response to message #1 by dbusse

Just kidding. You grabbed a good deal!

As for cleaning a dusty keyboard, I just use an old toothbrush. It will get the dust and grime out of hard-to-reach nooks and crannies with ease. Even if you don't have one handy, it is worth the money and time to go and buy one. While you're at it buy one for your toolbox too, you might be surprised how often they come in handy.

-Jeremy

            
Re: It's junk. You'd better sell it to me for $20... >>
Message #3 Posted by Ellis Easley on 8 Apr 2003, 6:05 a.m.,
in response to message #2 by Jeremy

I use a vacuum cleaner with the soft brush attachment and hold the unit with keys facing down to allow gravity to help the suction.

                  
cleaning keyboard - additional
Message #4 Posted by Ellis Easley on 8 Apr 2003, 6:42 a.m.,
in response to message #3 by Ellis Easley

If you use a brush or Q-Tips too vigorously running between the keys horizontally and vertically, you will end up with a criss-cross pattern slightly, but very noticably, worn into the keyboard bezel.

                        
I hear you, but...
Message #5 Posted by Jeremy on 8 Apr 2003, 6:42 p.m.,
in response to message #4 by Ellis Easley

If the grime in his keypad was as bad as the grime in the keypad of my HP45, a vacuum cleaner and brush won't budge it. That is a good point about the light scratching though...

-Jeremy

                              
Re: I hear you, but...
Message #6 Posted by Ellis Easley on 9 Apr 2003, 5:47 a.m.,
in response to message #5 by Jeremy

If it is really grimy, I use a similar technique first using a wide, soft bristle brush loaded with a little soap suds (minimal water). The brush I use is about 3" by 4" with bristles about 1/2" long. I hold the calculator upside down and rub it lightly on the brush in small circles. Then I use the same brush just barely damp a couple times to rinse, keeping the calculator upside down all the time (you can lay it keys down on a towel between scrubbings), then I use the vacuum cleaner to dry it out well.

      
Thanks for the help guys. Much appreciated. nt.
Message #7 Posted by dbusse on 8 Apr 2003, 8:33 a.m.,
in response to message #1 by dbusse

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