Yamaha AvantGard N3 Maintenance Handbook page 29

8. Lower-front speaker grille and lower board
8-1 Remove the four screws [S2MA] below the key bed.
8-2 Insert a hex wrench or similar tool into the gap between the lower-
front speaker grill and the key bed unit. Pull towards you to remove the
fastening tape, and remove the lower-front speaker grill.
8-3 Remove the four (4) screws marked [S22A] and four (4) screws marked
[S2MB], and lift the lower board to remove it.
8-4 Removing the lower-front panel allows access for replacing main
electrical components such as the DM circuit board or pedal unit, etc.
[S2MA]
[S22A]
[S2MB]
[S2MB]
SPEAKER (L)
[S2MA]
HEXAGONAL WRENCH
[S22A]
[S22A]
LOWER BOARD ASSEMBLY
DM
MAD ACDC
(1)
MAD
(2)
KEYBED (B)
LOWER GRILLE
ASSEMBLY
[S22A]
[S2MB]
[S2MB]
SPEAKER (R)
NU1
29