RE: the polarizing film -- Jeff Birt (on this list) suggested https://3dlens.com/
I have some, just haven't got to my project that needs it yet :D and with the onset of spring, that one may sit for a bit. --Brad On Sun, Apr 16, 2023 at 2:10 PM David Plass <dpl...@alum.mit.edu> wrote: > I couldn't resist a recent M100 on ebay listed as "not working". The main > issue was a dead contrast pot, which I have temporarily worked around and > ordered a hacky replacement. > > The polarizing film is also very bubbly and no amount of smoothing made it > stay flat on the LCD. Is there a known replacement for the film? > > Most importantly, I noticed about a half dozen non-functional keys. After > disassembly I discovered corrosion on their diodes. Upon closer > "inspection", said diodes disintegrated. > > So my second question is: Is there a particular diode I should replace > them with? I have tons of 1N4148s, which look like a match (and > electrically drop about the same voltage), but I can't find a spec for > those diodes on the m100 schematics. > > Thanks > -David > > > -- -- Brad Grier
