New HP 28S, strange behaviour
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03-21-2016, 07:44 PM
Post: #1
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New HP 28S, strange behaviour
Hi all!
Long time lurker, first time poster here! I finally jumped ahead sadly because I just receive a nice (perfect physical condition, perfect battery door...) made in USA 28S, and if the self-test run fine and all basic calculations are ok, I can't access to any menu or advanced functions. When I received it and tried to print something on my 82240A printer (the first thing I tried since the printer was laying on my desk and powered on, lol, just used it to print a grocery list with my 19B), it displayed the message "out of memory". I answered yes to all questions before trying to reset memory (I was curious of what previous owner could have programmed), but all I got was the continuous display of the appointment/busy calc. Now when I try to do anything that is not on the numeric keybord, the calculators hangs and displays the busy sign. I can do the self-test ever and ever (ok 28S), reset memory, but no improvement. Also when it hangs the pile displays 3: 2: 1: 1: (this is my first 28S, don't know if normal) I can access catalog and units (mem argument when used through catalog returns 32K memory, and the few thing I tried through catalog seem to work ok), but anything else just displays the busy signal and I have to do a soft reset (on + C) to get it back to pseudo-normal. Do you know what could be wrong with it? I opened various 18/19B in the past with various rate of success, but since I payed a nice sum for this "cosmetically perfect" 28S, I'd rather return it to seller if it is not usable... I'll try to let is without batteries for a while, hoping for improvement Cheers |
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Messages In This Thread |
New HP 28S, strange behaviour - Lithium - 03-21-2016 07:44 PM
RE: New HP 28S, strange behaviour - Jlouis - 03-21-2016, 08:47 PM
RE: New HP 28S, strange behaviour - Marcio - 03-21-2016, 08:52 PM
RE: New HP 28S, strange behaviour - Lithium - 03-21-2016, 09:08 PM
RE: New HP 28S, strange behaviour - rprosperi - 03-21-2016, 11:49 PM
RE: New HP 28S, strange behaviour - Lithium - 03-23-2016, 06:08 AM
RE: New HP 28S, strange behaviour - Lithium - 03-23-2016, 08:00 PM
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