Yamaha disklavier MX-100A, Service Manual

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2. Removing the Electrical Unit:
*lf necessary, cut the binding tie.
* For connector numbers, refer to the circuit
diagram.
* Before removing each unit, be sure to disconnect
the AC plig.
Removing the Control Unit:
12) Remove the following screws shown in Figure 5:
the four at (A), the six at (B), the one at (C) and
the two at (D).
13) Shift the unit to the top and remove it.
Removing the CPU Circuit Board and FDD
Unit:
14) Disconnect all the Connectors from the CPU
circuit board, remove the six screws, and take out
the unit.
1 5) Disconnect the two connectors of the FDD unit,
remove the four screws shown in Figure 6, and
remove the unit.
Removing the Hammer Sensor Unit:
16) Remove the Action Unit (See steps 10 and 11).
17) loosen the two attachment screws on the right
and left of the action bracket (see (A) on Figure
7), and remove the two center screws attaching
the Hammer Sensor Unit (see (B) on Figure 7).
8) Pull up on the unit in the direction of the arrow,
and remove it.
Figure 5.
Figure 6.
Figure 7.
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