Mitsubishi Electric MXZ-2D33VA, Service Manual

Page: 157 / 538

157
-20 -10 0 10 20 30 40
100
90
80
70
60
50
40
30
20
10
0
Resistance (k
Ω
)
Temperature (°C)
Defrost thermistor (RT61)
Ambient temperature thermistor (RT65)
Outdoor heat exchanger temperature thermistor (RT68)
MXZ-4D83VA MXZ-5D102VA
LED 1
LED 2
F931
FUSE
T3.15AL250V
(
CN932 20-90 V
AC
GND 5 VDC 5 VDC pulse wave
(
To fan motor
(+) Rush current relay
(–)
R.V
. coil (–)
CN781 CN663
CN701 CN702
CN661
CN681
High pressure switch
(
Bus-bar voltage
CN801
325 - 370 VDC
Input
LED 3
Serial signal
Room A
12~24 VDC
CN631
Serial signal Room D
12~24 VDC
CN641
Serial signal Room E
(
MXZ-5D102VA
)
12~24 VDC
CN621
Serial signal Room C
12~24 VDC
CN611
Serial signal Room B
12~24 VDC
CN601
230 VAC
Input
SW1
SW2
SW871
F801
FUSE
T3.15AL250V
CN791
LEV Room A
CN792
LEV Room B
CN794
LEV Room D
CN795
LEV Room E
(
MXZ-5D102VA
)
CN793
LEV Room C
(
(
+
{
CN796
LEV F
12 VDC
pulse wave
Defrost temperature thermistor (R
T61)
Discharge temperature thermistor (R
T62)
Outdoor heat exchanger temperature thermistor (R
T68)
Ambient temperature thermistor (R
T65)
Signal transmission (T
o power P
.C. board)
5 VDC pulse wave
Signal reception (From power P
.C. board)
5 VDC pulse wave
GND GND 15 VDC
–
Temperature (°C)
Discharge temperature thermistor (RT62)
5HVLVWDQFHNŸ
0
100
200
300
400
500
600
700
800
0 10 20 30 40 50 60 70 80 90 100 110 120
OBH626K