Mitsubishi Electric MSZ-LN18VGW - E1 Service Manual page 38

10-7. TEST POINT DIAGRAM AND VOLTAGE
Indoor power P.C. board, Indoor electronic control P.C. board, Display and receiver P.C. board, Switch
buzzer P.C. board
MSZ-LN18VGW MSZ-LN25VGW MSZ-LN35VGW MSZ-LN50VGW MSZ-LN60VGW
MSZ-LN18VGV MSZ-LN25VGV
MSZ-LN18VGB MSZ-LN25VGB
MSZ-LN18VGR MSZ-LN25VGR
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
pin
Emergency operation switch
(E.O.SW) (SW1)
i-see SENSOR motor (MT)
pin
i-see SENSOR
pin
pin
Display and receiver P.C. board
OBH766B
MSZ-LN35VGV
MSZ-LN35VGB
MSZ-LN35VGR
Varistor (NR11)
Fuse (F11)
5 V DC
12 V DC
Timer short mode point
TB (Refer to 8-1.)
Interlock
switch
(CN2T1) 12 V DC
Room temperature
thermistor RT11 (CN111)
Van motor (MV1)
(horizontal)
Van motor (MV2)
(vertical)
MSZ-LN50VGV
MSZ-LN50VGB
MSZ-LN50VGR
Connector Terminal
Block (CN201)
GND
5 V DC
pin
38
MSZ-LN60VGV
MSZ-LN60VGB
MSZ-LN60VGR
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)
To disable "Auto restart
function", cut the Jumper
wire to JR77. (Refer to 8-4.)
pin