How can I fix my Yahama Clavinova CLP - 152S elestric piano?
Are there contacts under the keys? 6 white & 3 black keys on the left end don't work. It appears water dripped toward the back creating moisture inside. Is it possible to check & clean these contacts? Also, how to access these contacts? I have already found where the ciruit board is, but can't see where it connects to the keys.