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Old September 17th 13, 04:42 PM posted to rec.aviation.soaring
Dan Marotta
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Posts: 4,601
Default "Bad" CAI302 Display

Well, calling Gary *would* be the elegant solution but I thought he wasn't
working on CAI instruments any more. I can call...

As to simply rotating the glass - that was my initial thought so I asked
Paul at Cumulus Soaring. He thought the problem was with the actual LCD and
not the front glass. So I started thinking about it... Having no direct
knowledge of LCD construction other than at the highest level, I believe
there's a back layer which contains the electronics, a layer of the liquid
crystal, probably a transparent layer in front of that with whatever
circuitry is necessary to complete the electric fields to change the state
of the crystal, and a front layer, which may be polarized. There may be
other layers which I don't think matter to this discussion.

If it's the front layer of the sandwich, then it was incorrectly applied
during manufacture and there's no fixing it. If, on the other hand, my
imaginings are wrong and it *is* the front glass, then that should be easily
rotated. Then the only problem is the possible violation of the electronic
seal.

Isn't this fun?


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