Mitsubishi Electric MUZ-GE25VA-a1 Service Manual page 82

11-6. TEST POINT DIAGRAM AND VOLTAGE
1. Inverter P.C. board
MUZ-GE25VA MUZ-GE25VAD MUZ-GE33VA
MUZ-GE35VA MUZ-GE35VA2 MUZ-GE35VAD MUZ-GE42VA
Back side of unit
230 VAC
F901
Fuse
T3.15AL250V
Output to
drive
compressor
(LDU,
LDV,
LDW)
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( )
OBH532E
DB61
Bus-bar voltage
260 - 300 VDC
(-) (+)
Discharge temperature thermistor(RT62)
700
600
500
400
300
200
100
0
0 10 20
20 30 40
C63
C62
Smoothing
Smoothing
capacitor
capacitor
F801
Fuse
T3.15AL250V
CN724
LEV
connector
30 40 50 60 70 80 90 100 110 120
Temperature( )
82
MUZ-GE42VAD
C61 F701
Smoothing Fuse
capacitor T3.15AL250V
LED
JS
(MUZ-GE25/33/35/42/
VA, 35VA2)
Jumper wire for
changing defrost
setting
(MUZ-GE25/35/42VAD)
Jumper wire for
changing demand
response capability
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( )
CN721
R.V.coil
230 VAC
230 VAC
JK
Jumper wire
for pre-heat
control setting