again about HP41c display features
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10-21-2016, 01:37 PM
(This post was last modified: 10-21-2016 05:51 PM by aurelio.)
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again about HP41c display features
Searching for another problem I've found this thread in the ancient "holy" forum and read this:
"I have a number of very early LCD calculators in my collection, some of them of the 'first-batches' yellow LCD type, and not only do they still work fine, but I can't notice any sign of degradation or diminished functionality whatsoever, despite the fact of them being 25+ years old" Now, my first 41 was a CX halfnut, so that I cant remind it.......the 'first-batches' yellow LCD type, aren't the ones provided with the tall keys? It means that the "yellowed" look , it's not due to smoke and to the age of the calculator, as I thought an wrote in a previous thread few days ago...... That could be its natural look! But now I have with me a Tall key very beauty that came affected by the "greeen" desease. After a cleaning (the block must be completely restored) I tried a test with a spare one but despite the look very nice it does not give signs of life... I've tried to replace the board: still not working.. Now I've noticed that the display is not the yellow one, it seems a "new batch" one (fullnut of course) but bright like a CV or a CX fullnut one...it seems it has been serviced (display replacement)......the driver mounted on the first C is not the same for the CV-CX boards? That could be the issue? |
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Messages In This Thread |
again about HP41c display features - aurelio - 10-21-2016 01:37 PM
RE: again about HP41c display features - Dieter - 10-21-2016, 06:52 PM
RE: again about HP41c display features - aurelio - 10-22-2016, 01:10 PM
RE: again about HP41c display features - Ángel Martin - 10-22-2016, 04:37 AM
RE: again about HP41c display features - aurelio - 10-22-2016, 01:23 PM
RE: again about HP41c display features - hth - 10-25-2016, 03:49 AM
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