Unit Circuit Board - Mitsubishi Electric e Series Service Handbook

[ III Unit Components ]

[3] Unit Circuit Board

1. Control board (MAIN board)
CN603
Cooling fan control signal output
1
Inverter reset signal output
2
CN600
9 VDC input
1
GND
2
12 VDC input
3
GND
4
SW4-6
Dip switch
CNRYA
72C drive signal
CNAC
L1
1
N
3
F001
250 VAC
3.15A T
TP1
Indoor-outdoor
Transmission
Check pin
HWE20010
CNPS
CN604
1
1 Pressure switch
2
error signal input
4
GND
2
CNPW
30 VDC output
1
GND
2
30 VDC output
3
GND
4
- 53 -
CN4/4A/4B/4C
1 Serial communication signal output
GND
2 GND
5 VDC output
Serial communication signal output
3
Power-supply
4 GND
signal output
CN110
Open-phase detection
1
signal input
GND
2
CN51
3 12 VDC output
Compressor ON/OFF
4
signal output
Error signal output
5
SWU1, 2
Address
TP2
Indoor-outdoor
Transmission
Check pin
GB