I need advice on how to repair two broken buttons on my R8mkII. The level button doesn't respond anymore while the number 2 button sticks (doesn't respond to light pressure). I'd like to repair it myself but I don't want to cause more damage. I have some soldering skills and I've taken appart the R8 before for cleaning. Although I didn't remove the buttons circuit board fearing I wouldn't be able to replace it correctly. Repair instructions, schematics, technician recomendation in the San
Francisco Bay Area and/or any helpful advice will help... or even just a few words of sympathy.