Fdin (1/2, 2/2) Circuit Boards - Yamaha M7CL-32 Service Manual

F. Disassembly Procedure of Control Panel 3 Assembly (M7CL-48 only)
* If it is difficult to remove the circuit board with
the control panel 3 assembly inclined about 45
degrees by the control panel stays, remove them
and place the unit on a cloth before working.
F-1. FDIN (1/2, 2/2) Circuit Boards
(Time required : About 4 minutes each)
F-1-1 Remove the front plate. (See procedure 1)
F-1-2 Fix the control panel 3 assembly. (See procedure 4)
F-1-3 FDIN (1/2) Circuit Board:
F-1-3-1 Remove the eight (8) fader knobs marked [40E]
from the control panel side. (Fig.16)
F-1-3-2 Remove the six (6) screws marked [32F]. The FDIN
(1/2) circuit board can then be removed. (Fig.16)
F-1-4 FDIN (2/2) Circuit Board:
F-1-4-1 Remove the eight (8) fader knobs marked [40F] from
the control panel side. (Fig.16)
F-1-4-2 Remove the six (6) screws marked [32G]. The FDIN
(2/2) circuit board can then be removed. (Fig.16)
* When installing the fader knob, the concave side
should be to the right. (Fig.16)
* The FDIN circuit boards contain DIP switches for
selecting channels (SW001). (Fig.16, Photo 18)
The channel assignment for the FDIN (1/2) circuit
board and FDIN (2/2) circuit board is as follows:
P.C.B. Channel assignment
FDIN (1/2) circuit board CH 33—40
FDIN (2/2) circuit board CH 41—48
• Mounting direction of the fader knob
The concave side should be to the right.
<Top view>
[22]: Bind Head Tapping Screw-B
[32]: Bind Head Tapping Screw-B
SW001
1 2 3
ON ON OFF ON
OFF ON OFF ON
[40F]
[40E]
CH41-48
CH33-40
4
<Bottom view>
[32G] x 6
[32F] x 6
[22I] x 4
[22H] x 4
3.0X6 MFZN2W3 (WE936300)
3.0X6 MFZN2W3 (WE936300)
Fig.16
M7CL-32/M7CL-48
FDIN
(2/2)
CH41-48
FDIN
(1/2)
CH33-40
PNIN
(2/2)
CH41-48
PNIN
(1/2)
CH33-40
47