Mitsubishi Electric SUZ-KA25VA5 Service Manual page 32

10-6. TEST POINT DIAGRAM AND VOLTAGE
10-6-1. Inverter P.C. board
SUZ-KA25VA5.TH
SUZ-KA25VA5.TH-ET
Back side of unit
230 V AC
Fuse (F901)
T3.15AL 250 V
Output to
drive outdoor
fan motor
(CN932)
Output to
drive
compressor
(LDU,
LDV,
LDW)
LED
Front side of unit
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 10
Temperature( )
OCH603
SUZ-KA35VA5.TH
SUZ-KA35VA5.TH-ET
Smoothing
DB61
capacitor (C63)
260–370 V DC
(−) (+)
Discharge temperature thermistor(RT62)
700
600
500
400
300
200
100
0
0 10 20 30
20 30 40
SUZ-KA50VA5.TH
SUZ-KA50VA5.TH-ET
Smoothing
Smoothing
capacitor
capacitor
(C62)
(C61)
Fuse (F801)
T3.15AL 250 V
40 50 60 70 80 90 100 110 120
Temperature( )
32
R.V.coil
Heater connector
(CN721)
(CN722)
230 V AC
Fuse (F701)
T3.15AL 250 V
Jumper wire for
changing defrost
setting (JS)
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( )
230 V AC