This week-end, I re-capped my M100 almost completely (C86 was out of stock, but I should get one this week).
The good news is that my voltages are now looking a lot better (especially VEE that went from -4.5V to -5.05V). The bad news is that despite re-heating the RTC's pins, I'm still having the intermittent keyboard/clock/cursor issue (a lot less since in the last few days I wasn't able to use it at all, but I still got it) and the contrast dial is still unresponsive. When re-capping I found out that at least one cap has leaked badly, but I was able to clean the motherboard area completely using white vinegar first, and isopropyl alcohol next. However there was a large corroded area next to the power supply area which I was not able to clean (picture: http://pics.lefauve.org/M100_Corrosion.jpg). Since I'll have to re-open the M100 to change C86, I'd like to try cleaning this better (the picture is after the white vinegar/isopropyl alcohol cleaning) but I'm not sure how to proceed. Should I go strongly at it (the first time I used q-tips, but I've seen peoples on youtube using toothbrushes very aggressively for cleaning PCB) or should I use another kind of cleaning product? Cheers, Eric
