Mitsubishi Electric MXZ-2D33VA-E1 Service Manual page 92

2. Outdoor control P.C. board
MXZ-3D54VA MXZ-3D68VA MXZ-4D72VA
Discharge temperature thermistor (RT62)
700
600
500
400
300
200
100
0
0 10 20 30 40 50 60 70 80
Temperature (°C)
LED 3
LED 2
LED 1
F711 FUSE
T3.15AL250V
CN711
230 VAC
SW871
SW2
CN712
R.V .coil
F801
FUSE
T3.15AL250V
CN801
Bus-bar
voltage
325 - 370
V DC
Input
F930
FUSE
T3.15AL250V
CN931
To Fan motor
OBH626B
90 100 110 120
Defrost thermistor (RT61)
Ambient temperature thermistor (RT65)
Outdoor heat exchanger temperature thermistor (RT68)
92
100
90
80
70
60
50
40
30
20
10
0
-20 -10 0 10 20 30 40
Temperature (°C)
CN631
Serial signal Room D
12 - 24V DC
CN621
Serial signal Room C
12 - 24V DC
CN611
Serial signal Room B
12 - 24V DC
CN601
230V AC
Input
Serial signal Room A
12 - 24V DC