Mitsubishi Electric Mr. SLIM PCA-M71HA2 Service Manual page 20

9-7. TEST POINT DIAGRAM
Indoor controller board
CN44
FUSE
(6.3 A 250 V)
CN3C
Transmission
(Indoor/outdoor)
(0–24 VDC)
CN01
Connect to the
Terminal Block (TB4)
: 200 VAC
CNP
Drain-pump output
(DP)
(220–240 VAC)
FAN
Fan motor output
OCH753A
: Pipe temperature thermistor/Liquid
: Condenser/evaporator temperature thermistor
LED1
SWE
Power supply
Emergency operation
(I.B)
LED2
Power supply
(R.B)
SW2
Capacity setting
20
CN22
}
Remote controller
connecting wire
–
(10.4 – 14.6 VDC)
CN20
Room temperature
thermistor (TH1)
CN31
Drain sensor (DS)
CN90
Connector
CN41
Connector
(HA terminal-A)
CN105
IT Terminal
CN51
Centrally control
: Control signal
13 V pulse input ( : +)
: Operation indicator
13 VDC ( : +)
: Malfunction indicator
13 VDC ( : +)
CN2L
Connector
(LOSSNAY)
CN32
Adaptor
LED3
Transmission
(Indoor/outdoor)
SW5
Function setting
SW1
Model setting