Yamaha AvantGard N3 Maintenance Handbook page 26

N1
7. Key Stop Rail
The key stop rail is integrated into one piece with the protective sheet.
* See 3-1 for information about the procedure to remove the protective sheet.
8. Shank Stopper
Remove a total of four screws on the left/right at the 2 locations in the photos and remove the shank stopper.
9. Hammer Sensor Unit
Remove the screws [C] at the 4 locations shown below and remove the hammer sensor unit.
[C]
26
[C]
HAMMER SENSOR UNIT
SHANK STOPPER
[C]
[C]