Pnin (1/4—4/4) Circuit Boards - Yamaha M7CL-32 Service Manual

M7CL-32/M7CL-48
E-2. PNIN (1/4—4/4) Circuit Boards
(Time required : About 5 minutes each)
E-2-1 Remove the front plate. (See procedure 1)
E-2-2 Fix the control panel 2 assembly. (See procedure 3)
E-2-3 PNIN (1/4) Circuit Board:
E-2-3-1Remove the FDIN (1/4) circuit board. (See
procedure E-1-3)
E-2-3-2Remove the four (4) screws marked [22D]. The
PNIN (1/4) circuit board can then be removed.
(Fig.15)
E-2-4 PNIN (2/4) Circuit Board:
E-2-4-1Remove the FDIN (2/4) circuit board. (See
procedure E-1-4)
E-2-4-2Remove the four (4) screws marked [22E]. The
PNIN (2/4) circuit board can then be removed.
(Fig.15)
E-2-5 PNIN (3/4) Circuit Board:
E-2-5-1Remove the FDIN (3/4) circuit board. (See
procedure E-1-5)
E-2-5-2Remove the four (4) screws marked [22F]. The PNIN
(3/4) circuit board can then be removed. (Fig.15)
E-2-6 PNIN (4/4) Circuit Board:
E-2-6-1Remove the FDIN (4/4) circuit board. (See
procedure E-1-6)
E-2-6-2Remove the four (4) screws marked [22G]. The
PNIN (4/4) circuit board can then be removed.
(Fig.15)
* The PNIN circuit board contains the following
buttons. (Photo 17)
· [20]: Button L (Blue)
· [30]: Button L (Gray)
· [40]: Button L (White)
* The circuit boards from PNIN (1/4) through PNIN
(4/4) are used for the following channels:
· PNIN (1/4) circuit board: CH 1—8
· PNIN (2/4) circuit board: CH 9—16
· PNIN (3/4) circuit board: CH 17—24
· PNIN (4/4) circuit board: CH 25—32
46
2 pcs.
2 pcs.
2 pcs.
PNIN Circuit Board
[30]: Button L (Gray)
[40]: Button L (White)
Photo 17
[20]: Button L (Blue)