Mitsubishi Electric Mr. SLIM MSZ-FA25VA Technical Manual página 350

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6. Test point diagram and voltage
6-1. Inverter P.C. board
SUZ-KA25VA.TH
SUZ-KA25VAH.TH SUZ-KA35VAH.TH
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(
350
SUZ-KA35VA.TH
230V AC Smoothing capacitor
DB61 (C63C)
Connecting wire with
power P.C. board
(CN725)
Defrost thermistor(RT61)
Ambient temperature thermistor(RT65)
100
90
80
70
60
50
40
30
20
10
0
-20 -10
°C )
Smoothing capacitor
(C63B)
LEV
connector
(CN724)
700
600
500
400
300
200
100
0 10 20 30 40
Temperature( )
°C
Smoothing capacitor
(C63A)
Output to drive
outdoor fan motor
(CN932)
Connector for indoor/
outdoor communication
(CN601)
Discharge temperature thermistor(RT62)
0
0 10 20 30 40 50 60 70 80
Temperature( °C )
LED monitor
lamp
1 (+)
2 (+)
3 (+)
4 5V
GND
90 100 110 120