Mitsubishi Electric PSA-RP71KA Service Manual page 21

9-5. TEST POINT DIAGRAM
Indoor controller board
PSA-RP71KA
CN90
Connect to the wireless
remote controller receiver
board (CNB)
LED3
Transmission
(Indoor/outdoor)
CN105
LED2
Power supply (R.B)
CN44
Pipe temperature
thermistor
1–2 : Liquid (TH2)
3–4 : Cond./Eva. (TH5)
CN20
Room temperature
thermistor (TH1)
LED1
Power supply (I.B)
V : Voltage between
FG
PC6722 and C955(−)
(Same as 7(+)–4(−) of CNMF)
V : Voltage between pins of
SP
C626
0 V DC (FAN stop)
1–6.5 V DC (FAN operation)
(Same as 6(+)–4(−) of CNMF)
CNMF
Fan motor
1–4: 310–340 V DC
5–4: 15 V DC
CNP
Louver motor output
(220–240 V AC)
OCH528B
PSA-RP100KA PSA-RP125KA
21
PSA-RP140KA
SW1
Model selection
SW2
Capacity setting
CN2L
Connector (LOSSNAY)
Jumper wire J41,J42
Pair No. setting for wireless
remote controller
CN51
Centrally control
1–2 : Control signal
13V pulse input (1 : +)
3–4 : Operation indicator
13 V DC (3 : +)
3–5 : Malfunction indicator
13 V DC (3 : +)
CN41
Connector (HA terminal-A)
SWE
Emergency operation
CN22
Remote controller connecting
wire(10.4–14.6 V DC)
CN3C
Transmission
(Indoor/outdoor)
(0–24 V DC)
V : Voltage between pins of
CC
C955 15 V DC
(Same as 5(+)–4(−) of CNMF)
CN01
Connect to the Terminal Block
(TB4)
(Indoor/outdoor connecting line)
Between 3 and 5
220–240 V AC
FUSE
6.3A /250V