Yamaha KB-180 Service Manual page 13

* When installing the circuit board 61H, tighten
the screws 1 through 8 in numerical order as
shown in the figure for circuit board "61H" in
Fig. 14. (Fig. 14)
* When the black keys from C#2 to A#2, from
C#3 to A#3 or from C#5 to A#5 are replaced,
wrap the nonwoven fabric cloth (WH347400)
marked [380] around the black key ribs at the
screw mounting portions marked [330] de-
scribed in Procedure 1. (Fig. 15)
9
2 3
B2 C3
61L
10 11
4 5 7
6
B3 C4 B4 C5
61H
12 6
8 1 1 3
Fig. 14
[380]
Fig. 15
KB-180/SKB-180
8
7
4 5 2
13