Yamaha AvantGard N3 Maintenance Handbook page 22

N2
6. Front Rail
Remove the nine key bed bottom screws [280] and the four key bed upper screws [290A], and remove the key slip.
[280]
7. Key Stop Rail
A key nonwoven fabric (black) is attached to the key stop rail so take care not to tear it during removal.
* There are 10 setscrews on the center rail top panel above the nonwoven fabric (black).
8. Action
8-1 Remove the hammer sensor connector.
8-2 Remove the action.
Remove the action bracket installation screws and remove the action while gripping the
lower sound part of the shank stopper and the next high sound part of the shank rail as
shown in the photo (right).
* We recommend you use a screwdriver with long shaft to remove the screws
for the action bracket.
9. Shank Stopper
Remove a total of 6 screws at the four locations in the photos, and remove the shank stopper.
10. Hammer Sensor Unit
Removal of the hammer sensor unit is the same as for the GP-SG Silent.
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Key bed bottom
[280] [280] [280]
[290A]
SHANK STOPPER