fix speaker?
Why do yahama use plastic key boards when their products are so expensive?
How can i fix my yamaha keyboard, PSR 270?
How can I fix the back-light in the LCD screen in my Yamaha PSR-630 keyboar?
how can I fix my Yahama Clavinova CVP-209?
My Yamaha P-200 sustain pedal function is 'sticking'?