About 6 months ago, my M100's LCD contrast was very weak and impossible to use. Following your advice, I changed C82 and C85 . That gave me a solid -5V for VEE and the contrast was back to normal.
My problem is that 6 months later, I can still read the screen (mostly) but my VEE is now back to -3V. I'm tempted to replace C82 and C85 again, but I think it's weird to get the same failure so quickly after a fix (both new capacitors were new from mouser). Do you see anything else I should check regarding this issue? Eric
