Mitsubishi Electric MXZ-2A30VA - E1 Service Manual page 139

2. Outdoor electronic control P.C. board
MXZ-3A54VA MXZ-4A71VA MXZ-4A80VA -
Discharge temperature thermistor (RT62)
700
600
500
400
300
200
100
0
0 10 20 30 40 50 60 70
Temperature (°C)
LED 1
LED 2
LED 3
SW1
Bus-bar
voltage
CN801
325~370
V DC
Input
F801
FUSE
T3.15AL250V
80 90 100 110 120
Defrost thermistor (RT61)
Ambient temperature thermistor (RT65)
Gas pipe temperature thermistor (RT6A, 6B, 6C, 6D)
E1 (Except MXZ-3A54VA- E4 , E5 , E6 , E7 and MXZ-4A71VA- E4 , E5 , E6 , E7 .)
Outdoor heat exchanger temperature thermistor (RT68)
100
90
80
70
60
50
40
30
20
10
0
-20
139
-10 0 10 20 30 40
Temperature (°C)
CN604
Serial signal Room D
12~24V DC
CN603
Serial signal Room C
12~24V DC
CN602
Serial signal Room B
12~24V DC
CN601
230V AC
Input
Serial signal
Room A
12~24V DC