Yamaha N-100 Service Manual page 14

N-100
19. Disassembling the Keyboard Assembly
* After inserting a round stick (Rod: TX000670)
between the frame and the keys, remove the
circuit boards. (Fig. 23)
19-1 GHD EBUS L, MK SUB Circuit Board
(Time required: about 12 minutes)
Remove the seven (7) screws marked [260A]. The
GHD EBUS L and MK SUB circuit boards can then
be removed. (Fig. 24, Photo 5)
19-2 GHD M Circuit Board
(Time required: about 12 minutes)
Remove the five (5) screws marked [260B] and the
screw marked [262]. The GHD M circuit board can
then be removed. (Fig. 24)
14
Round stick
(Rod: TX000670)
(Fig. 23)
GHD H
[260C] [262]
[260]: Bind Head Tapping Screw-P 3.0X10 MFZN2W3 (WF001000)
[262]: PW Head Tapping Screw-P 3.0X10-10 MFZN2W3 (WF765500)
GHD EBUS L
(Photo 6)
19-3 GHD H Circuit Board
(Time required: about 12 minutes)
Remove the four (4) screws marked [260C] and the
screw marked [262]. The GHD H circuit board can
then be removed. (Fig. 24)
* Keys can be removed without removing the
circuit boards.
* After removing the GHD EBUS L, GHD M and
GHD H circuit boards, and the rubber contacts
can then be removed.
19-4 Rubber contact
Remove the GHD circuit board for the involved key.
The rubber contacts can then be removed.
(Photo 6, Photo 7)
GHD M MK SUB
[260B]
(Fig. 24)
MK SUB GHD EBUS L
(Photo 5)
GHD EBUS L
[260A]
Rubber contact
(Photo 7)