Yamaha Silent Piano GB1KS, Руководство по обслуживанию

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3. Piano Regulation
-Piano regulation may be done independently from the Silencing mechanism.
When pulling an action for tuning and voiving, operate the Silent lever to release the Silent
mechanism (Fig.5) and remove the key sensor connector in front of the action. (Fig.6)
Fig.5
Fig.6
-Hammer let-off : approx. 2mm (normally same distance as GP)
-Hammer drop : 2-point matching (Fig.7: simultaneous contact of
① and ② )
-Other regulation : same as GP
Fig.7