Yamaha DISKLAVIER MX1Z Service Manual page 13

18. Switch Box Assembly
18-1 Remove the four (4) screws marked [73S]. The switch box
assembly can then be removed. (Fig. 11)
19. CTRL IN Circuit Board
19-1 Remove the switch box assembly. (See Procedure B-18)
19-2 Remove the hexagonal nuts marked [H]. The CTRL IN
circuit board can then be removed. (Fig. 11, 12)
[73S]
FOOT CONTRL
[H] MAINS (ON/OFF) switch
[73S]: Truss Head Tapping Screw-1 4.0 x12 MFZN2BL (03747270)
CTRL IN
[H]
Switch box assembly
MAINS
OFF ON
(Fig. 11)
Switch box assembly
(Fig. 12)
MX1Z
13