Mitsubishi Electric MSZ-LN25VGW Service Manual page 37

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-LN25VGW MSZ-LN35VGW MSZ-LN50VGW MSZ-LN60VGW
MSZ-LN25VGV
MSZ-LN25VGB
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
Emergency operation switch
(E.O.SW) (SW1)
i-see SENSOR motor (MT)
pin
i-see SENSOR
pin
pin
Display and receiver P.C. board board
OBH766
MSZ-LN35VGV MSZ-LN50VGV
MSZ-LN35VGB MSZ-LN50VGB
MSZ-LN35VGR MSZ-LN50VGR
Varistor (NR11)
Fuse (F11)
5 V DC
12 V DC
Interlock
switch
(CN2T1)
pin
Van motor (MV1)
(horizontal)
Van motor (MV2)
(vertical)
MSZ-LN60VGV
MSZ-LN60VGB
MSZ-LN60VGR
Connector Terminal
Block (CN201)
Timer short mode point
TB (Refer to 8-1.)
GND
5 V DC
12 V DC
Room temperature
thermistor RT11 (CN111)
37
Indoor fan motor
(CN211)
voltage DC)
Resistor (R111)
(MSZ-LN25/35/60)
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
pin
(+)0 or 15 V DC
(+)3-6 V DC
15 V DC
(–) GND (high-
325 V DC