Test Point Diagram And Voltage; Inverter P.c. Board; Front Side Of Unit; Back Side Of Unit - Mitsubishi Electric Mr.Slim MUZ-GC25NA - C1 Service Manual

9-6. TEST POINT DIAGRAM AND VOLTAGE

1. Inverter P.C. board

MUZ-GC25NA MUZ-GC35NA

Back side of unit

DB61
280V ~ 370V
DC
(+) (-)
Output to
drive
compressor
(LDW,
LDV,
LDU)
LED monitor
lamp

Front side of unit

Defrost thermistor(RT61)
100
90
80
70
60
50
40
30
20
10
0
-20 -10 0 10
Temperature(°C)
Smoothing capacitor
(C62)
DB61
220-230V AC
Discharge temperature thermistor(RT62)
700
600
500
400
300
200
100
0
0 10 20
20 30 40
Fuse
(F801)
LEV
connector
(CN724)
30 40 50 60 70 80 90 100 110 120
Temperature(°C)
49
Smoothing capacitor
Varistor
(C61)
(NR62)
Varistor
(NR63)
Output to drive
R.V.coil
(CN721)
outdoor
fan motor
(CN771)
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(°C)
Varistor
(NR61)
Fuse
(F701)