Yamaha YM-2400R Owner's Manual - Page 10

YM-460/460F/410/410F/46/41/2400/2400R ASSEMBLY c Attach the resonators. 3-1. Assemble the resonator pipes of the YM-460/460F/410/410F/46/2400/2400R. Make sure that the natural tone and accidental tone sides are properly assembled. All pipes on the natural tone side have bottoms attached. 3-2. Insert the resonators into the resonator holders on the frame ends in the same way as the rails. Place the bass side of the resonators into the center grooves on the resonator holder. * Make sure not to confuse the natural tone resonators and accidental tone resonators. * Take care not to bump the resonators against the legs, etc. Resonators (Natural tone side) Resonators (Accidental tone side) * The resonators are factory adjusted so that the optimum resonance level is obtained at 23°C. If desirable resonance is not available due to the temperature lower or higher than 23°C, adjust setting of the resonators. Move the resonators to fit into longer grooves when the temperature is higher and into shorter grooves when the temperature is lower. Temperature Grooves to use Resonator holder Higher Around 23°C Lower Short groove ("A" in the figure below) Center groove ("B") Long groove ("C") A : For a higher temperature B : For a temperature around 23°C C : For a lower temperature 30