Replacing The Lithium Battery; Dsp32 Circuit Board (M7Cl-32); Jk Circuit Board - Yamaha M7CL-32 Service Manual

A-2. Replacing the lithium battery
(Time required: About 4 minutes)
A-2-1 Remove the front plate. (See procedure 1)
A-2-2 Fix the control panel 1 assembly. (See procedure 2)
A-2-3 The lithium battery on the CPUM circuit board
assembly can be replaced. (Photo 6)
* The lithium battery is not part of the CPUM
circuit board assembly. When replacing the
CPUM circuit board assembly, remove the
lithium battery from the CPUM circuit board
assembly, and install it on the new circuit board.
* Before replacing the lithium battery, be sure to
save all the setting data in M7CL-32/M7CL-48
to a USB storage device. (See page 168.)
A-3. DSP32 Circuit Board (M7CL-32), DSP48
Circuit Board (M7CL-48)
(Time required: About 6 minutes)
A-3-1 Remove the front plate. (See procedure 1)
A-3-2 Fix the control panel 1 assembly. (See procedure 2)
A-3-3 Remove the screw marked [1050], the screw
marked [1060], and two (2) screws marked [1080A].
The CPUM circuit board assembly and CPU holder
can then be removed. (Fig.5)
A-3-4 Remove the seven (7) screws marked [1010], the
two (2) spacers marked [1020] and the spacer
marked [1030]. (Fig.5)
A-3-5 M7CL-32: Remove the DSP32 circuit board. (Fig.5)
M7CL-48: Remove the DSP48 circuit board. (Fig.5)
A-4. JK Circuit Board
(Time required: About 5 minutes)
A-4-1 Remove the front plate. (See procedure 1)
A-4-2 Fix the control panel 1 assembly. (See procedure 2)
A-4-3 Remove the four (4) screws marked [610], two (2)
screws marked [620], two (2) screws marked [630],
and two (2) screws marked [640]. The JK circuit
board can then be removed. (Fig.5)
* The earth film XLR is not part of the JK circuit
board. When replacing the JK circuit board,
remove the earth film XLR from the JK circuit
board, and install it on the new circuit board.
(Photo 7)
CPUM
Lithium battery
Lithium Battery
Battery VN103500
VN103600(Battery holder for VN103500)
Notice for back-up battery removal. Push the battery
as shown in figure, then the battery will pop up.
Druk de batterij naar beneden zoals aangeven in de
tekening, de batterij springt dan naar voren.
Photo 6
M7CL-32/M7CL-48
Battery
Battery holder
Earth film XLR
JK
Photo 7
XLR
31