Mitsubishi Electric MXZ-2C30VA Service Manual page 110

11-7. TEST POINT DIAGRAM AND VOLTAGE
1. Inverter P.C. board
MXZ-2C30VA MXZ-2C40VA MXZ-2C52VA
Back side of unit
Output to
drive
compressor
(LDW,
LDV,
LDU)
Front side of unit
Fin temperature thermistor (RT64)
200
180
160
140
120
100
80
60
40
20
0
0 10 20 30 40 50 60 70 80
OBH584G
230 VAC
Input
325 VDC
Defrost thermistor (RT61)
Ambient temperature thermistor (RT65)
Outdoor heat exchanger
temperature thermistor (RT68)
100
90
80
70
60
50
40
30
20
10
0
-20 -10 0
8 VDC
5 VDC 12 VDC
700
600
500
400
300
200
100
0
0
10 20 30 40
110
FUSE(F801) FUSE(F901)
T3.15AL250V T3.15AL250V
Output to drive
outdoor fan motor
(CN932)
To fan motor
Discharge temperature thermistor (RT62)
10 20 30 40 50 60 70 80
JK,JGO
To
interface
P.C. board
(CN937)
LEV A
(CN791)
LEV B
(CN792)
90 100 110 120