BATTERIES' SWAP ON HP 48GX - Printable Version +- HP Forums (https://archived.hpcalc.org/museumforum) +-- Forum: HP Museum Forums (https://archived.hpcalc.org/museumforum/forum-1.html) +--- Forum: Old HP Forum Archives (https://archived.hpcalc.org/museumforum/forum-2.html) +--- Thread: BATTERIES' SWAP ON HP 48GX (/thread-252276.html) |
BATTERIES' SWAP ON HP 48GX - aurelio - 10-06-2013 Yesterday evening I got a problem with my 48GX. 1) I've noticed that the annunciator of the "low battery" alarm was still on the display (without any battery inside ) and I thought : "this is due to the backup battery" (isn't it?) this morning the display was clear 2) after the carge I replaced the batteries and turned on the calculator but the only result is tho see the "low battery" annuciator on 3) I replaced the rechargeable with three new fresh cells and the problem is the same.....
Where am I wrong?
PS. I've googled without to find this issue, if it is well known behaviour that I don't know, excuse me for that
Re: BATTERIES' SWAP ON HP 48GX - Han - 10-06-2013 Do you have a memory card installed? Usually the low-bat message indicates where the low battery is: (S) for system (main batteries), (P1) for the card in port 1, and (P2) for port 2.
Re: BATTERIES' SWAP ON HP 48GX - aurelio - 10-06-2013 No Han, anymemory card, but what I mean that the calculator does not turn on....just shows the alarm annunciator! Edited: 6 Oct 2013, 9:49 a.m.
Re: BATTERIES' SWAP ON HP 48GX - Thomas Radtke - 10-06-2013 Can you measure the voltage (fresh batteries inserted, calculator turned on)? Maybe there's a shortage (capacitor comes to mind).
Re: BATTERIES' SWAP ON HP 48GX - aurelio - 10-06-2013 4,70 V Thomas
Re: BATTERIES' SWAP ON HP 48GX - Thomas Radtke - 10-06-2013 That obviously destroys my theory. Sorry, that was just a guess, I hope someone else has a solution for you.
Re: BATTERIES' SWAP ON HP 48GX - R Nav - 10-06-2013 Long shot but try this...
http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/articles.cgi?read=301
Re: BATTERIES' SWAP ON HP 48GX - aurelio - 10-06-2013 Just now back home, nothing, just the annunvciator is shown on the display thanks to Randy who explained where the hole is located Ciao a tutti and thank-you very much
Edited: 7 Oct 2013, 3:06 a.m.
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