Mitsubishi Electric MSZ-AP71VG-E3 Service Manual page 46

10-7. TEST POINT DIAGRAM AND VOLTAGE
1. Indoor electronic control P.C. board, indoor terminal P.C. board, receiver P.C. board, display board and
switch/buzzer P.C. board
MSZ-AP25VG MSZ-AP35VG
MSZ-AP25VGK MSZ-AP35VGK MSZ-AP42VGK MSZ-AP50VGK
Indoor terminal P.C. board
Fuse
(F11)
Varistor
(NR11)
Indoor coil thermistor
RT12, RT13 (CN112)
Vane motor
(CN151)
Display
P.C. board
Room temperature
thermistor RT11 (CN111)
Switch/buzzer
P.C. board
Please replace the fuse after removing the indoor terminal P.C. board from
*
the electrical box.
OBH788E
MSZ-AP42VG
To disable "Auto restart function"
cut the Jumper wire to JR77.
(Refer to 8-3.)
Timer short
mode point
Indoor electronic
(Refer to 8-1.)
control P.C. board
Emergencyoperation switch
(E.O.SW) (SW1)
MSZ-AP50VG
Receiver P.C. board
12 V DC
5 V GND
Room temperature thermistor (RT11)
Indoor coil thermistor (RT12, RT13)
46
Reactor (L112)
[MSZ-AP50VG]
[MSZ-AP50VGK]
Resistor (R111)
[MSZ-AP25/35/42VG]
[MSZ-AP25/35/42VGK]
Indoor fan motor
(CN211)
(+)0 or 15 V DC
(+)3-6 V DC
15 V DC
(–) GND (high-
voltage DC)
325 V DC
Temperature (°C)