Mitsubishi Electric MCFH-A12WV Service Manual page 18

TEST POINT DIAGRAM AND VOLTAGE
MCFH-A12WV -
E1
MCFH-A18WV -
E1
MCFH-A24WV -
E1
Indoor electronic control P.C. board
Fan motor power supply 230V AC
Very
Med.
Low High
Low
7 5 6 4 3 2 1 8
EMERGENCY OPERATION switch
No.2 No.1
Receiver P.C.
board connector
(CN101)
Room temperature
thermistor(RT11)
Fuse (F11)
250V AC
3.15A
Varistor (NR11)
Power supply
input 230V AC
R132 about 20V DC
(Refer to page 17.)
+ }
–
–
}
12V DC
+
Solder jumper wire to the
JR07 on the indoor electronic
control P.C. board.
(Refer to page 10.)
Room temperature thermistor (RT11)
Time short point JPG and JPS
(Refer to page 9.)
Indoor coil thermistor (RT12)
RT11
TH113
CH313
To the indoor
electronic control
DE00R697B
P.C.board CN113
1 2
18
5V DC
Indoor coil thermistor (RT12)
Room temperature thermistor (RT11)
40
30
20
10
0
0 10 20
Temperature ( C)
30 40 50 60