Yamaha YM-5104A Owner's Manual - Page 14

ASSEMBLY YM-4600A Only 5-2. As YM-4600A does not have a resonance regulator, insert resonators into resonator holders as shown below. * 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 Higher Short groove ("A" in the figure right) Around 23°C Center groove ("B") Lower Long groove ("C") A : For a higher temperature B : For a temperature around 23°C C : For a lower temperature Resonator holder n Adjust the height of the tone bars. While supporting the frame end of the leg by hand, loosen the fixing bolt of the slide guide on both large end and small end sides. Adjust the height to the desired level and tighten the fixing bolts securely. When adjusting the height, use the lines on the slide guide for reference and make the tone bars in parallel with the floor surface. Upon completion of assembly, check to make sure that each bolt is tightened securely. Fixing bolt 28