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Dark patch growing in LCD screen
08-21-2019, 07:36 AM (This post was last modified: 08-21-2019 07:40 AM by ijabbott.)
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RE: Dark patch growing in LCD screen
The fix would require opening the calculator up and replacing the reflective backing on the LCD. There is a thread covering this process for a HP-22S: https://www.hpmuseum.org/forum/thread-12652.html

An alternative would be to replace the entire LCD module using a HP-17B or HP-17BII (but not a HP-17BII+) as a donor. (I'm not sure about the 17BII+, but since it is a reimplementation of the HP-17BII, I'm guessing the LCD module would be different.)

— Ian Abbott
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Dark patch growing in LCD screen - Ender - 08-21-2019, 07:21 AM
RE: Dark patch growing in LCD screen - ijabbott - 08-21-2019 07:36 AM



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