Topic: Avantgrand N3 overtone and version upgrade
Does anyone have any experience with a N3 with 1. Dealing with a prominent, sharp overtone on B5 (service tech couldn't correct) and 2. Version upgrades(pg 124 service manual provided by Geoff Sykes, thanks). Specifically how do you know which version you have, and have there been upgrades in the past. The manual says they are attainable on Yanaha.com, but I can't locate them.