HP 18C Display Message #1 Posted by Stan G. on 15 Feb 2000, 8:59 p.m.
A friend of mine just gave me an HP 18C (no manual). It checks out fine on the self test, but I can't adjust the display contrast by holding the on key and pressing + or - like I can on my 19B. Can anyone tell me if the 18C's display is adjustable for contrast? Was this one of the features left out to make it less expensive than the 19B?
Thanks
Re: HP 18C Display Message #2 Posted by Hugo on 18 Feb 2000, 9:45 p.m., in response to message #1 by Stan G.
You have to press ON and up or down arrow together.
Re: HP 18C Display Message #3 Posted by Reinhard Hawel on 19 Feb 2000, 9:07 a.m., in response to message #2 by Hugo
No, that doesn't work. I tested it on mine. I don't find the manual now, but the same method works on my HP28C and my 28S. Strange...
Re: HP 18C Display Message #4 Posted by Hugo on 20 Feb 2000, 12:06 p.m., in response to message #3 by Reinhard Hawel
Hi,
I have the manual and HP-18C, and in fact ,when you press ON and up or down arrow, the display change.Mine is an european one... maybe there`s a difference .. don't know.
Go back to the main exhibit hall