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Yamaha Disklvaier Mark II XG Series Service Manual page 14

Uplight pianos

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MX100IIXG
B Electrical parts
1 DB Circuit Board
1-1 Remove the four (4) screws marked [33G] and the
five (5) screws marked [41GA]; remove the top
cover. (Fig. 1)
1-2 Remove the three (3) screws marked [31GA];
remove the DB circuit board. (Fig. 1)
Warning:
Use only original screws when assembing the
top cover. If you use differnt screws, it will
damage the inside component.
2
SPEAKER
2-1 Remove the top cover. (See procedure 1)
2-2 Remove the two (2) screws marked [40G]; remove
the connector assembly SP with speaker. (Fig. 1)
3 CONTROLLER Circuit Board
3-1 Remove the top cover. (See procedure 1)
3-2 Remove the speaker. (See procedure 2)
3-3 Remove the screw marked [41GB], the two (2)
lock screws marked [18] and six (6) screws
marked [31GB]; remove the CONTROLLER
circuit board. (Fig. 1)
4 CT-SUB Circuit Board
4-1 Remove the top cover. (See procedure 1)
4-2 Remove the speaker. (See procedure 2)
4-3 Remove the two (2) screws marked [38G] and the
two (2) hexagonal nuts marked
4-4 Remove the three (3) screws marked [31GB];
remove the CT-SUB circuit board. (Fig. 1)
5
FDD Unit
5-1 Remove the top cover. (See procedure 1)
5-2 Remove the three (3) screws marked [35G];
remove the FDD unit together with the FDD cover.
(Fig. 1)
5-3 Remove the four (4) screws marked [39G]; remove
the FDD unit. (Fig. 1)
6 Panel Unit
6-1 Remove the top cover. (See procedure 1)
6-2 Remove the two (2) screws marked [32G] and the
three (3) screws marked [36G]; remove the panel
15
[A]. (Fig. 1)
(Fig. 1 )

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