Yamaha Disklavier Silent Mark III Service Manual page 21

J. Pedal Sensor Unit
J-1 Remove the two (2) screws marked [151S]. The pedal
sensor unit can then be removed. (Fig.8,10, Photo.14)
Top view
[151S]: Truss Head Tapping Screw-1 4.0X16 MFZN2Y (03747340)
K. Pedal Drive Unit
K-1 Loosen the four (4) screws marked [091S]. The pedal
drive unit can then be removed. (Fig.8, Photo.15)
L. PEDAL SENSOR Circuit Board
L-1 Remove the pedal drive unit. (See procedure B-19-K.)
L-2 Remove the two (2) screws marked [11]. The PEDAL
SENSOR circuit board can then be removed together
with the sensor bracket. (Fig.11)
L-3 Remove the four (4) screws marked [13]. The PEDAL
SENSOR circuit board can then be removed from the
sensor bracket. (Fig.11)
M. PEDAL DRIVE Circuit Board
M-1 Remove the two (2) screws marked [12]. The PEDAL
DRIVE circuit board can then be removed. (Fig.11)
Sensor bracket
[151S] x 2
Pedal sensor unit
M
(Fig.10)
PEDAL SENSOR
[11] x 2
[13] x 4
[11]: Screw M4.0X10
[12]: Pan Head Screw M4.0X10 (AX816860)
[13]: Bind Head Tapping Screw-S M3.0X5 (AX816870)
PEDAL SENSOR
[091S] x 4
[12] x 2
PEDAL DRIVE
(Fig.11)
Pedal sensor unit
(Photo.14)
Pedal drive unit
PEDAL DRIVE
(Photo.15)
DU1A
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