Mitsubishi Electric MSZ-LN18VG2W-SC1 Service Manual page 54

Indoor power P.C. board, Indoor electronic control P.C. board, Display and receiver P.C. board, Switch
buzzer P.C. board
MSZ-LN18VG2W-
SC1
MSZ-LN18VG2V-
E3
MSZ-LN18VG2B-
E3
MSZ-LN18VG2R-
E3
MSZ-LN25VG2W-
SC1
MSZ-LN25VG2V- ,
SC1
MSZ-LN25VG2B- ,
SC1
MSZ-LN25VG2R- ,
SC1
Indoor power P.C. board
GND
Connector to indoor
electronic control
P.C. board (CN202)
Indoor electronic control P.C. board
Air purifying
device (CN1T1)
Indoor coil thermistor
RT12, RT13 (CN112)
Switch buzzer P.C. board
Emergency operation switch
(E.O.SW) (SW1)
i-see SENSOR motor (MT)
pin
i-see SENSOR
pin
pin
Display and receiver P.C. board
OBH766G
, , , MSZ-LN35VG2W-
ER2 ET2 E3
MSZ-LN35VG2V-
MSZ-LN35VG2B-
MSZ-LN35VG2R-
MSZ-LN50VG2W-
, , ,
E3 ER3 ET3
MSZ-LN50VG2V-
, ,
E3 ER3 ET3
MSZ-LN50VG2B-
, ,
E3 ER3 ET3
MSZ-LN50VG2R-
, ,
E3 ER3 ET3
Varistor (NR11)
Fuse (F11)
12 V DC 5 V DC
Timer short mode point
TB (Refer to 8-1.)
Interlock
switch
(CN2T1)
12 V DC
pin
Vane motor (MV1)
(horizontal)
Vane motor (MV2)
(vertical)
, , ,
SC1 E3 ER3 ET3
, , ,
SC1 E3 ER3 ET3
, , ,
SC1 E3 ER3 ET3
, , ,
SC1 E3 ER3 ET3
, , ,
SC1 E3 ER3 ET3
, , ,
SC1 E3 ER3 ET3
, , ,
SC1 E3 ER3 ET3
, , ,
SC1 E3 ER3 ET3
Connector Terminal
Block (CN201)
GND
5 V DC
Room temperature
thermistor RT11 (CN111)
54
MSZ-LN60VG2W-
SC1
MSZ-LN60VG2V-
SC1
MSZ-LN60VG2B-
SC1
MSZ-LN60VG2R-
SC1
Indoor fan motor
(CN211)
(+)0 or 15 V DC
(+)3-6 V DC
15 V DC
(–) GND (high-
voltage DC)
325 V DC
Resistor (R111)
(MSZ-LN18/25/35/60)
Reactor (L112)
(MSZ-LN50)
Room temperature thermistor (RT11)
Indoor coil thermistor (RT12, RT13)
Temperature (°C)
Connector to indoor
power P.C. board
(CN102)
Cut the jumper wire JR24
when the room tempera-
ture does not reach the set
temperature during heating
operation.
(Refer to 8-6.)
To disable "Auto restart
function", cut the Jumper
wire to JR77. (Refer to 8-4.)
pin
pin
, , ,
E3 ER3 ET3
, , ,
E3 ER3 ET3
, , ,
E3 ER3 ET3
, , ,
E3 ER3 ET3