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Value for the pot that controls LCD contrast?

Posted: Fri Apr 10, 2020 1:40 am
by dgriff
Does anyone know what the value for the surface mount pot is that controls LCD contrast is (mine is a Max V2 if that matters)? Mine seems to be going flaky and has a hair trigger. One micrometer either direction and it's unusable. Was thinking about hitting it with a shot of deoxit, but wouldn't hurt to know the value just incase.

Edit: Found a schematic. https://reprap.org/mediawiki/images/7/7 ... scount.pdf

Looks like it's a 10K SMD pot. Seems to have a hair trigger between no display and solid blocks, would replacing it with a 50 or 100k variable pot make things a little less sensitive so the sweet spot is easier to find?

Re: Value for the pot that controls LCD contrast?

Posted: Fri Apr 10, 2020 8:24 am
by geneb
It sounds like you've simply got a bad pot on your hands. The value is probably fine.

g.