Mitsubishi Electric MSZ-GA35VA Service Manual page 25

OPERATING PROCEDURE
2. Removing the electronic control P.C. board, the
power monitor receiver P.C. board, SW P.C. board
and the terminal block
(1) Remove the horizontal vane, the panel (Refer to 1.) and
the corner box.
(2) Remove the screw of V.A. clamp, and then the
indoor/outdoor connecting wire. (See Photo 2.)
(3) Remove the switch holder from the electrical cover.
(See Photo 3.)
(4) Remove the screw of the electrical cover, and then the
electrical cover. (See Photo 3.)
(5) Remove the ground wire connected to the indoor
electronic control P.C. board from the electrical box.
(See Photo 4.)
(6) Unhook the power monitor receiver P.C. board holder from
the catch. (See Photo 4.)
(7) Open the rear cover of the power monitor receiver P.C.
board holder and pull out the power monitor receiver P.C.
board.
(8) Open the switch holder and pull out SW P.C. board.
(9) Pull the electronic control P.C. board slightly toward you
from the electrical box, and disconnect TAB3 and all the
connectors on the electronic control P.C. board.
(LD101 and LD105 are direct-mounted to the electronic
control P.C. board.)
(10) Pull out the electronic control P.C. board from the electrical
box.
(11) Remove the ground wire connected to the heat exchanger
from the electrical box. (See Photo 4.)
(12) Unhook the catches of the electrical box, and pull out the
electrical box.
(13) Remove the screws of the terminal block cover, and then
the terminal block cover and the terminal block holder.
(See Photo 2.)
(14) Remove the terminal block by sliding it.
3. Removing the electrical box
(1) Remove the horizontal vane, the panel (Refer to 1.) and
the corner box.
(2) Remove the screw of V.A. clamp, and then the indoor/
outdoor connecting wire. (See Photo 2.)
(3) Remove the switch holder and the electrical cover.
(See Photo 3.)
(4) Remove the ground wire connected to the heat exchanger
from the electrical box. (See Photo 4.)
(5) Disconnect the following connectors on the electronic
control P.C. board; the fan motor connector <CN211>, the
indoor coil thermistor connector <CN112>, the vane motor
connector <CN151>, the connector of the interlock switch
(Fan) of the horizontal vane <CN1R1>.
(6) Unhook the catches of the electrical box, and pull out the
electrical box.
Photo 2
Screws of
the terminal
block cover
Drain hose
Photo 3
Photo 4
Ground wires
Power monitor
receiver P.C.
board holder
25
PHOTOS
Screw of V.A. clamp
Switch holder
Screw of the
electrical cover.
Fan motor
connector (CN211)
Connector of the
interlock switch(Fan)
(CN1R1)
Indoor coil thermistor
connector (CN112)
Vane motor
connector (CN151)