Yamaha Disklavier MX-100A Service Manual page 22

Removing the Key Sensor Unit:
19) Remove the Keyboard.
20) Disconnect the three connectors to the unit
(CN8, 9, 4).
21) Remove the six screws shown at (A) on Figure 8,
and remove the unit.
Removing the Key Drive Unit:
22) Remove the fourteen connectors of the I/O Circuit
Board (CN8, CN10~22) and the connector of the
power source unit (CN8).
23) Remove the six attachment screws from the drive
unit (see (A) of Figure 9.) and take put the unit.
Removing the Pedal Drive Unit:
24) Remove the two connectors at (A).
25) Loosen the hex nut at (B) on Figure 10 and then
remove the hex nut at (C).
26) Loosen the four screws of the Side Board (D).
27) Shift the unit to the top and remove it.
Figure 8.
Figure 9.
Figure 10.
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