Re: Service a " HP-28c" Message #5 Posted by Erwin on 28 July 2001, 4:36 a.m., in response to message #1 by Hugh Wong
Hello Hugh,
Before you are going to open-up the calculator, try the following.
Take two metal strips, and place one on each battery-sprong. Then short-cut the to metal strips for several or more seconds. In otherwords, short-cut the battery-sprongs.
I have 21 HP calculators, and used this trick several time's now. It allway's brought back live into the calculator, after i thought it had died on me. :~) Especcially the 28 serie like's to pretend it's dead.
Greatings, Erwin
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