Mitsubishi Electric MUZ-HJ25VA-E2 Service Manual page 57

Outdoor unit
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OPERATING PROCEDURE
2. Removing the inverter assembly, inverter P.C.
board
(1) Remove the cabinet and the panels. (Refer to 1.)
(2) Disconnect the lead wire to the reactor and the follow-
ing connectors:
<Inverter P.C. board>
CN721 (R.V. coil)
CN771 (Fan motor)
CN641 (Defrost thermistor and discharge temperature
thermistor)
CN724 (LEV)
(3) Remove the compressor connector (CN61).
(4) Remove the screw fixing the heat sink support and the
separator.
(5) Remove the inverter assembly.
(6) Remove the screw of the earth wire and the screw of
the terminal block support.
(7) Remove the screw of the terminal block and remove
the terminal block.
(8) Remove the heat sink support from the P.C. board
support.
(9) Unhook the catch of the inverter P.C. board and
remove the inverter P.C. board from the P.C. board
support.
3. Removing the R.V. coil
(1) Remove the cabinet and the panels. (Refer to 1.)
(2) Disconnect the following connectors:
<Inverter P.C. board>
CN721 (R.V. coil)
(3) Remove the R.V. coil.
OBH648F
Photo 4
Screw of the heat
sink support and
the separator
Photo 5 (Inverter assembly)
Heat sink
Heat sink
support
Inverter
Screw of the
P.C. board
terminal block support
57
PHOTOS
Screws of the terminal
block support and the
back panel
P.C. board
Screw of the
support
earth wire
Terminal block
support

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