Random High Volume Response on Clavinova

[Greg Barker]

I was visiting my father for his 92nd birthday last Thursday, and as we often do we played his Clavinova (purchased in 2020). As I was playing the D4 key would randomly respond with a loud, shrill tinny note. This has been going on for a few months, I remember my father reporting a "weird" sound coming from some of the keys. I don't see anything on this forum about this, but searches on the Internet do come up with multiple hits, including YouTube videos for how to disassemble a Clavinova to clean the contacts under the keys for either periodic non-response or this abnormally loud response. Is this common for Yamahas or Clavinovas? Are Yamaha's technicians usually able to solve the problem?

 

[Greg Barker]

OK, posting this brought up threads such as "

Random very loud single note playing for no reason"​

It appears that disassembly and cleaning contacts is the solution. Does anyone who has dealt with this used a Yamaha tech, because my father isn't going to be taking a project like this on and I live 3 hours away.

 

[Stampanator]

Im sure yamaha can fix easily. I fixed this myself on a reface yc and its perfect. Some ants had gotten in and had anorgy under the keybed. Essentially the parts are quite cheap and the labour would be about 2 hours. Yamaha build well but this involves some 30+ screws to be found and dealt with by hand. There is a rubber strip with two dots on the bottom (the contacts) and re attaching this (or a new) rubber strip is a bit of a jewellers job. But I managed with some persistance and I am not that dexterous.