Service manual

20
8-5. Test point diagram and voltage
MU-A30ND
Outdoor deicer P.C. board
Varistor
(NR62)
Fuse
3.15A / 250V
}
12V DC
}
5V
DC
+
+
Temperature(:)
Discharge temperature thermistor(RT62)
Resistance(k")
0 102030405060708090100110120
0
100
200
300
400
500
600
700
800
900
Ambient temperature thermistor (RT63)
-20 -10 0 10 20 30 40
0
10
20
30
40
50
60
70
80
90
100
Temperature(:)
Resistance(k")
CN662 1-2
Discharge temperature
thermistor (RT62)
(Refer to 8-4.E.)
CN662 3-4
Ambient tempera-
ture thermistor
(RT63)
(Refer to 8-4.E.)
LEV
connector
(CN724)
Fan motor
connector
(CN711)
Varistor (NR61)
CN7301-3
220-230-240V
AC
}
(Refer to
8-4. C.)
}
R601
10V DC
(Refer to
8-4. C.)
(Refer to
8-4. A or C.)
J101
J401
+
Solenoid
valve coil
(CN722)
OB405E.qxp 09.10.14 9:16 AM Page 20