Mitsubishi Electric MUZ-FH25VE - E1 Service Manual page 51

OPERATING PROCEDURE
2. Removing the inverter assembly, inverter P.C. board
and relay P.C. board
(1) Remove the cabinet and panels. (Refer to 1.)
(2) Disconnect the lead wire to the reactor and the following con-
nectors:
<Inverter P.C. board>
CN602 (R.V. coil)
CN931, CN932 (Fan motor)
CN671 (Defrost thermistor, discharge temperature thermistor
and outdoor heat exchanger temperature thermistor)
CN672 (Ambient temperature thermistor)
CN724 (LEV)
(3) Remove the compressor connector.
(4) Remove the screws fixing the relay panel.
(5) Remove the relay panel.
(6) Remove the earth wires and the lead wires of the inverter P.C.
board.
(7) Remove the screws of the P.B. support.
(8) Remove the inverter P.C. board from the relay panel.
(9) Disconnect the following connectors:
<Relay P.C. board>
CN60 (Terminal block)
CN680 (Inverter P.C. board)
TAB65 (Inverter P.C. board)
TB71
(10) Remove the screws fixing the P.B. holder.
(11) Remove the relay P.C. board from the P.B. holder.
3. Removing R.V. coil
(1) Remove the cabinet and panels. (Refer to 1.)
(2) Disconnect the following connector:
<Inverter P.C. board>
CN602 (R.V. coil)
(3) Remove the R.V. coil.
OBH624A
Photo 3
Inverter P.C.
board
Screws of
the P.B.
support
Screw of the
relay panel
Photo 4
Screw of the
R.V. coil
51
PHOTOS
Screws of the
relay panel
Earth wires
Screw of
Screws of
Relay
the P.B.
the P.B.
P.C board
holder
support
Brazed parts of
4-way valve