Read Panasonic CS-MZ20UD3EA Service Manual online
22
10. Electronic Circuit Diagram
10.1 Indoor Unit
MOTOR
Y
7
6
5
5
1
4
1
1
3
CN-FM
(WHITE)
CN-CNT
(WHITE)
4
1
HAJEM-A
(WHITE)
CN-FSW
(GREEN)
CN-TH
(WHITE)
1
6
BL
INDOOR PIPE
TEMPERA
TURE
SENSOR 2
INDOOR PIPE
TEMPERA
TURE
SENSOR 1
INDOOR AIR
TEMPERA
TURE
SENSOR
t°
t°
t°
BL
BL
BL
BL
BL
1
R
R
R
O
O
O
BL
FLOA
T
SWITCH
BL
3
ELECTRONIC
CONTROLLER
CN-DRMTR1
(BLUE)
B W BL
Y
BL
W
G1
3
5
CN-AC (WHITE)
CN-T1 (BLUE)
T3.15A L250V
7
4
BL
BL
TRANSFORMER
65
2
CN-T2
(WHITE)
COMMUNICA
TION
CIRCUIT
NOISE FIL
TER
CIRCUIT
RECTIFICA
TION
CIRCUIT
1
1
R
Y
DRAIN PUMP
GROUNDING
TERMINAL
TERMINAL
BOARD
M
M
1
1
2
3
R
TO OUTDOOR UNIT
FUSE
Y/G
12345678
7
14
6
8
23
5
V
B
B
RP
BR
Y
G
R
O
4
3
3
12
6
34
2
2
Y
BR
R
O
CON 1 (WHITE)
WIRED REMOTE CONTROLLER
CN-DISP
(WHITE)
(WHITE)
(BLACK)
G
70
60
50
40
30
20
-10
0
10
20
30
40
50
10
0
Res
is
ta
nc
e(
kΩ
)
Sensor (Thermistor)
Characteristics
Pipe temp. Sensor
Intake Air Temp. Sensor
Temperature (°C)
C35
R65
5V
5V
5V
R34
BZ
GND
8
IC8
C51
C31
C30
R89
R63
R62
5V
C22
C34
C17
R32
C67
R88
R26
R25
12V
C8
C46
R75
DB2
IC5
12V
R87
C45
R74
DB02_GND
5V
C36
12
3
R51
R67
5V
R22
C15
R54
1
2
3
4
SW1
DRAIN PUMP
TEST RUN
SW2
5V
C32
R20
R30
C38
R56
5V
L5
L6
R82
R90
C66
C52
C57
C56
12V
5V
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