Mitsubishi Electric MSZ-LN25VGW Service Manual page 42

OPERATING PROCEDURE
4. Removing the indoor electronic control P.C.
board, the indoor power P.C. board, the indoor
terminal block, and the room temperature ther-
mistor
(1) Remove the electrical box (refer to 3).
Removing the indoor terminal block (Photos 6, 8)
(2) Remove the screw of the terminal block. (Photo 6)
(3) Disconnect the following connector:
<Indoor power P.C. board>
CN202 (To the indoor electronic control P.C. board)
(4) Remove the heat sink cover.
(5) Disconnect the connectors of the indoor terminal block
(TAB3 and CN201).
(6) Disconnect the earth wire (LD104) from the erth plate.
Removing the indoor electronic control P.C. board
and the indoor power P.C. board (Photo 8)
(2) Disconnect all the connectors on the indoor electronic
control P.C. board and the indoor power P.C. board.
(3) Remove the indoor electronic control P.C. board and
the indoor power P.C. board.
Removing the room temperature thermistor (Photo 8)
(2) Disconnect the following connector:
CN111 (Room temperature thermistor)
(3) Remove the room temperature thermistor.
OBH766
Photo 8 (Enlarged view of the indoor
electronic control P.C.bard)
TAB3
CN202
CN112
LD104
CN1J1
CN151
CN1T1
42
PHOTOS
CN201
CN211
Heat sink cover
CN110
Indoor electronic
control P.C. board
Room temperature thermistor
Indoor
power
P.C. board
CN2T1
CN111