Akai MPK61 Service Manual page 4

4.
DISASSEMBLE THE MAIN PCB ASS'Y.
(A)REMOVE 3 NUTS FROM THE MAIN PCB ASS'Y.
(B)REMOVE 3 SCREWS FROM THE MAIN PCB ASS'Y.
5.
DISASSEMBLE THE LED PCB ASS'Y.
(A) REMOVE 4 SCREW FROM THE LED PCB ASS'Y.
(Fig4)
(Fig5)