HP Forum Archive 14

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i need help powering up hp48sx Message #1 Posted by ross denys on 17 Dec 2004, 7:49 p.m. i have a 48sx that sat in my briefcase forever. i used it very little and changed the batterries on a regular basis. one day it wouldn't power up. i have tried reseting it with a paper clip under the upper rubber foot. i've tried leaving te batterries out for days to eliminate the static.no luck. can anyone help me.thankyou for your interest

Re: i need help powering up hp48sx Message #2 Posted by Namir on 17 Dec 2004, 9:06 p.m., in response to message #1 by ross denys Have you tried to connect the terminals (while the batteries are removed) with a papeer clip to possibly discharge any static build up?

Re: i need help powering up hp48sx Message #3 Posted by Raymond Del Tondo on 17 Dec 2004, 10:49 p.m., in response to message #2 by Namir A small but important addendum: NEVER put in the batteries with wrong polarity, unless you want to take the risk destroying the zener diode. This topic has been discussed before several times.

Re: i need help powering up hp48sx Message #4 Posted by Randy on 18 Dec 2004, 12:17 a.m., in response to message #1 by ross denys Try this: Press lightly on the rasised part of the bezel above and between the B and C keys in the top row. While maintaining the pressure, try turning it on. If it turns on, the problem is a loss of contact between the logic board and keyboard due to shrinkage of a foam pad.

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