Mitsubishi Electric MSXY-FN07VE-R1 Service Manual page 43

OPERATING PROCEDURE
2. Removing the indoor power P.C. board and the
electrical box
(1) Remove the panel. (Refer to section 1.) Remove the
right corner box.
(2) Disconnect the following connectors:
<Indoor electronic control P.C. board>
CN151 (Vane motor)
CN1R1 (Interlock switch)
CN112 (Indoor coil thermistor)
CN10A (To the indoor power P.C. board)
(3) Unhook the catch on the left side of the control P.C.
board holder. Pull the control P.C. board holder as if
opening the door at 90 degrees. Remove the control P.C.
board holder from the axial rod on the electrical box.
(4) Remove the screw of the V.A. clamp.
(5) Remove the V.A. clamp and the indoor/outdoor con-
necting wire.
(6) Remove the screws of the earth plate. (Photo 2)
(7) Remove the indoor coil thermistor from the water cover.
(8) Disengage the hooks of the water cover and remove
the water cover.
(9) Remove the screw of the electrical cover and remove
the electrical cover.
(10) Disconnect the CN211 (Indoor fan motor) from the
indoor power P.C. board.
(11) Remove the upper catch of the electrical box, and pull
out the electrical box.
(12) Disconnect the following connectors.
<Indoor power P.C. board>
CN201 (Terminal block)
CN20A (To the indoor electronic control P.C. board)
To attach the electrical box, pass the wires connecting
the indoor power P.C. board and the indoor electronic
control P.C. board through
the fan motor through
that it will not be pinched under the electrical box.
OBH779C
. Pass the lead wires of
as shown in the Photo 3 so
PHOTOS/FIGURES
Photo 2
Screws of the earth plate
Indoor electronic
control P.C. board
Vane motor
connector (CN151)
Photo 3
43
Water cover
Screw of the
electrical cover
Screw of the
V.A. clamp
Indoor coil ther-
mistor
Interlock switch
connector
CN1R1
Indoor coil ther-
mistor connec-
tor CN112
Connector
CN10A
(To indoor power
P.C. board)
Control P.C. board holder
Terminal block
connector CN201
Connector CN20A
(To indoor elec-
tronic P.C. board)
Indoor fan motor
connector CN211
Electrical box