Yo Napoleon Solo:
Get your hand out of your vest!!!
I think you have to send it in. Seems to me that I wouldn't want to tackle that job; very fine electrical work and soldering and parts and etc. Yeah, man, let Yamaha do it and during the two weeks you are without your Yam, you can vocalize in the shower or write new tunes or make linguini with clam sauce.
Illya Hornet, oops,
I got carried away.
Green Hornet