Alesis AI-4 Service Manual page 7

3.REMOVAL SUB-PUNEL (Fig.3)
(A) REMOVE THE 4 PCS OF SCREWS FROM THE TOP PANEL.
4.REMOVAL OF FRONT PANEL P.C.B (Fig.4)
(A) REMOVE THE 7 PCS OF SCREWS FROM WHICH FRONT PANEL P.C.B
(B) REMOVE THE POWER ON/OFF KNOB FROM WHICH FRONT PANEL P.C.B
(C) REMOVE THE KNOB FROM WHICH FRONT PANEL P.C.B
DISASSEMBLY PROCEDURES
Fig.3
Fig.4