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Help with HP 41C display
11-25-2015, 04:23 AM
Post: #4
RE: Help with HP 41C display
(11-17-2015 08:24 PM)emece67 Wrote:  I've encountered a similar problem months ago. Finally solved it, perhaps your case is similar. See here.

Regards.

Thanks for the information. I built your circuit and tried it out. It drove the LCD to where instead of individual characters, all the elements were powered on. It must of done something to the circuits on the LCD board because when I removed the oscillator and powered up the calculator, the LCD was working perfectly. I'm not sure what happened, but I now have a working 41C which is now being converted into a 41CL. Thanks for the help.
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Messages In This Thread
Help with HP 41C display - jwhsu - 11-17-2015, 02:02 AM
RE: Help with HP 41C display - rwiker - 11-17-2015, 03:52 PM
RE: Help with HP 41C display - emece67 - 11-17-2015, 08:24 PM
RE: Help with HP 41C display - jwhsu - 11-25-2015 04:23 AM
RE: Help with HP 41C display - emece67 - 11-25-2015, 02:34 PM



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