Mitsubishi Electric MUZ-FA25VA-E1 Service Manual page 43

11-7. Test point diagram and voltage
MUZ-FA25VA (Serial No : 5002651T~)
MUZ-FA25VAH (Serial No : 5000401T~)
1. Inverter P.C. board
Back side of unit
DB61
280V ~ 370V
DC
(+) (-)
Output to
drive
compressor
(LDW,
LDV,
LDU)
Jumper wire for change
in defrost setting (JS)
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(:)
230V AC Smoothing capacitor
DB61 (C63C)
LEV
Connecting wire with
power P.C. board connector
(CN725) (CN724)
Defrost thermistor(RT61)
Ambient temperature thermistor(RT65)
100
90
80
70
60
50
40
30
20
10
0
-20 -10
Temperature(:)
MUZ-FA35VA (Serial No : 5003001T~)
MUZ-FA35VAH (Serial No : 5000401T~)
Smoothing capacitor
(C63B)
0 10 20 30 40
43
Smoothing capacitor
(C63A)
Output to drive
outdoor fan motor
(CN932)
Connector for indoor/
outdoor communication
(CN601)
Discharge temperature thermistor(RT62)
700
600
500
400
300
200
100
0
0 10 20 30 40 50 60 70
Temperature(:)
FUSE(F801)
250V 3.15A
FUSE(F901)
250V 3.15A
LED monitor
lamp
1(+)
2(+)
3(+)
45V
5GND
80 90 100 110 120