Mitsubishi Electric Mr. SLIM PLA Series Service Manual page 35

9-7. TEST POINT DIAGRAM
Indoor controller board
PLA-A12EA7R1.TH
PLA-A30EA7R1.TH
LED2
Power supply
(Wired remote controller)
CNV
Vane motor (MV)
12 V pulse output
CN5Y
i-see Sensor motor (MT)
12 V pulse output
CN51
Centrally control
– : Control signal
13 V DC pulse input ( : +)
– : Operation indicator
13 V DC ( : +)
– : Malfunction indicator
13 V DC ( : +)
CN41
HA terminal-A
CN2L
Lossnay
CN105
IT
CN20
Room temperature thermistor
(TH1)
CN44
Pipe temperature thermistor
– : Liquid (TH2)
– : Condenser/Evaporator (TH5)
CN4F
Drain float switch (FS)
CNP
Drain pump (DP)
– : 13 V DC
Vsp
Voltage between pins of C626
0 V DC (FAN stop)
1–6.5 V DC (FAN operation)
(Same as 6(+)–4(−) of CNMF)
CNMF
Fan motor (MF)
– : 310 V DC
– : 15 V DC
TCH070A
TCH070A.indd 35 TCH070A.indd 35
PLA-A18EA7R1.TH
PLA-A36EA7R1.TH
CN4Z
i-see Sensor (Sensor)
35
PLA-A24EA7R1.TH
PLA-A42EA7R1.TH
CN90
Connect to the wireless
remote controller board (CNB)
CN01
Connect to the terminal block
(TB4)
(Indoor/outdoor connecting line)
F1
FUSE
(6.3A/250 V)
TB5
Connect to wired remote controller
10.4-14.6 V DC
SW1
Model selection
J41, J42
Jumper wire
(Pair No. setting with
wireless remote controller)
SW2
Capacity setting
LED3
Communication
(Indoor-outdoor)
SWE
Jumper switch
(Emergency operation)
CN28
Time saving
CN32
Remote switch
CN4G
Connect to the auto grille controller
board (CN4G)
– : 13 V DC ( : +)
– , – : communication
line 0–5 V DC ( , : +)
LED1
Power supply (I.B)
CN3C
Connect to the terminal block
(TB4)
(Indoor/outdoor connecting line)
0–24 V DC (Communication)
– : 220 V AC
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