Mitsubishi Electric MXZ-2C20NA2-U1, Service Manual

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OPERATING PROCEDURE
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(1) Remove the top panel and the service panel (Refer to
section 1).
(2) Disconnect the power supply cord and indoor/outdoor
connecting wires.
(3) Disconnect the wire-to-wire connector of the compressor
lead wire (Photo 6).
(4) Disconnect all the connectors on the outdoor control P.C.
board.
(5) Remove the releasable cable tie securing the lead wires
of core, TBE1, CNTH2, and CNAC2 (Photo 6).
(6) Remove all the screws fixing the outdoor control P.C.
board holder (Photo 6).
(7) Remove the lead wires of TBE1, CNTH2, and CNAC2
from the right hook on the top of the outdoor control P.C.
board holder (Photo 6, ).
(8) Remove the lead wires of CN151 and CN152 from the left
hooks on the top and the bottom of the outdoor control P.C.
board holder (Photo 6, and 7).
(9) Remove the outdoor control P.C. board holder.
(10) Disengage all the catches of the outdoor control P.C.
board holder, and remove the outdoor control P.C. board
(Photo 8).
(11) Disconnect all the lead wires from the reactor (Photo 9).
(12) Remove all the screws fixing the reactor, and remove the
reactor (Photo 9).
(13) Remove all the lead wires from the clamps on the sepa-
rator (Photo 10).
107
Photo 6
Lead wire
of CNDC
NOTE: These
lead wires
are hooked
from front to
back
Releasable
cable tie
Separator
Lead wire of
TAB6 (White)
Lead wire of
TAB3 (Red)
Lead wire of
TAB5 (Red)
Lead wire of
TAB4 (White)
Photo 7
Photo 10
Screws of
the outdoor
control P.C.
board holder
Cramps
Screws of the reactor
Photo 9
Photo 8
Lead wire
of CNF1
Left hook on the bottom
of control P.C. board
(CN151, CN152)
Lead wire of the
compressor
Lead wires of
CN151, CN152
Lead wires of
TAB4, TAB5
Lead wires of
CN791, CN792,
CN793, CN794,
CNTH1, CN63H,
CN712
Connector of
the compressor
lead wire
Catches of the
outdoor contol
P.C. board holder
OBH702G