Mitsubishi Electric Mr. SLIM MSZ-FA25VA Technical Manual página 444

Resolución de averías
Test point diagram and voltage
Inverter P.C. board
MXZ-2A40VA MXZ-2A52VA
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
Temperature( )
444
230V AC
Input
325V DC
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
Temperature( )
°C
8V DC
5V DC 12V DC
700
600
500
400
300
200
100
0 10 20 30 40
°C
FUSE(F801)
3.15V/250V
Output to drive
outdoor fan motor
(CN932)
To fan motor
Discharge temperature thermistor(RT62)
0
0 10 20 30 40 50 60 70 80
Temperature( °C
FUSE(F901)
3.15V/250V
JK,JGO
To
interface
P.C.board
LEV A
(CN791)
LEV B
(CN792)
90 100 110 120
)