Panasonic CS-BE25TKE / CS-BE35TKE / CS-BE50TKE / CU-BE25TKE / CU-BE35TKE / CU-BE50TKE (serv.man2) Service Manual ▷ View online
25
9. Electronic Circuit Diagram
9.1 Indoor
Unit
9.1.1
CS-BE25TKE CS-BE35TKE
70
60
50
R
esi
st
an
ce
(k
Ω
)
Temperature (ºC)
Sensor (Thermistor)
Characteristics
40
30
20
10
-10
0
10
20
30
40
50
0
Pipe Temp. Sensor
Intake Air Temp. Sensor
1
1
2
2
5V
4 3 2 1
C49
NONE
C45
0.1μ
16V
B1
0.1μ
16V
B1
R37
10k
R54
270
5V
C48
NONE
C47
NONE
5V
R85
5.1k
5.1k
CN-DISP
YELLOW
2
3
4
5
3
4
5
5
4
3
2
1
4
3
2
1
R89
NONE
CN-RMT
1
5V
C3
0.1μ
16V
B1
ELECTRONIC CONTROLLER
(MAIN)
SW01
4
FAN MOTOR
CN-FM (WHT)
Y
7
4
1
1
B
W
BL
R
M
FUSE301
T3.15A L250V
RY-PWR
RY-PWR2
Y/G
Y/G
TEMP.
FUSE
102°C (4.5A)
EVAPORATOR
1
2
3
AC303
(WHT)
AC304
(RED)
G301
(GRN)
GROUNDING
TERMINAL
L
R
W
G
P
BL
BR
TERMINAL
BOARD
GROUNDING
TERMINAL
L
N
SINGLE PHASE
POWER SUPPLY
1ø 220-230V 50Hz
COMMUNICATION
CIRCUIT
TO
OUTDOOR
UNIT
NOISE
FILTER
CIRCUIT
RECTIFICATION
CIRCUIT
C25
1μ
16V
B3
R62
15k
1%
C27
1μ
16V
B3
R61
20k
1%
SUCTION
TEMP. SENSOR
(THERMISTOR)
(15k, 3950)
TEMP. SENSOR
(THERMISTOR)
(15k, 3950)
PIPING
TEMP. SENSOR
(THERMISTOR)
(20k, 3950)
TEMP. SENSOR
(THERMISTOR)
(20k, 3950)
4
3
2
1
t°
5V
CN-TH
RED
1
2
3
4
5
CN-CNT
WHITE
t°
REMOTE CONTROLLER
UP DOWN
LOUVER MOTOR
CN-STM1
WHITE
1
5
4
3
2
12V
1
2
3
4
16
IC03
15
14
13
5
12
6
11
7
10
BR
1
5
R
O
O
M
Y
P
P
ON
OFF
SET
TIMER
CANCEL
AIR SWING
TEMP
MODE
SLEEP
FAN SPEED
OFF/ON
OFF/ON
R47
68
1/2W
R46
68
1/2W
12V
9
8
COM
E
1/10W
1/10W
4
5
CN-DISP
PH5
WHITE
ELECTRONIC CONTROLLER
(DISPLAY & RECEIVER)
(DISPLAY & RECEIVER)
RECEIVER
C201
C202
R203
IC201
R204
R201
R202
5%
5%
LED202
(orange)
(green)
LED201
1
Vout
Vcc
GND
GND
GND
2
3
3
PCB
A713533
P.C.B
5V
IC03
IC03
IC03
IC03
IC03
IC03
IC03
5V
5V
12V
R90
10K
10K
R82
10K
10K
L6
B-06-RTF-50
L5
B-06-RTF-50
B-06-RTF-50
C57
0.1μ
16V
B1
0.1μ
16V
B1
C56
0.1μ
16V
B1
0.1μ
16V
B1
C51
1000p
B1
C52
1000p
B1
26
9.1.2 CS-BE50TKE
ELECTRONIC CONTROLLER
(DISPLAY & RECEIVER)
(DISPLAY & RECEIVER)
POWER
(green)
TIMER
(orange)
LED201
LED202
GND-A
5V_
1
2
3
Vout
Vcc
GND
GND
GND
5
4
IC1
KB
C202
0.01μ
16V
70
60
50
R
esi
st
an
ce
(k
Ω
)
Temperature (ºC)
Sensor (Thermistor)
Characteristics
40
30
20
10
-10
0
10
20
30
40
50
0
Pipe Temp. Sensor
Intake Air Temp. Sensor
1
1
2
2
5V
4 3 2 1
C49
NONE
C45
R37
R54
5V
C47
NONE
5V
CN-DISP
YELLOW
YELLOW
2
3
4
5
6
3
4
5
6
CN-DISP
WHITE
5
4
3
2
1
4
3
2
1
R201 470
1/10W 5%
R202 2k
1/10W 5%
R89
NONE
CN-RMT
1
5V
C3
0.1μ
16V
KB
ELECTRONIC CONTROLLER
(MAIN)
SW01
4
FAN MOTOR
CN-FM (WHT)
Y
7
4
1
1
B
W
BL
R
M
FUSE301
T3.15A L250V
RY-PWR
RY-PWR2
Y/G
Y/G
TEMP.
FUSE
102°C (3A)
TEMP.
FUSE
102°C (3A)
EVAPORATOR
1
2
3
AC303
(WHT)
AC304
(RED)
G301
(GRN)
GROUNDING
TERMINAL
L
R
W
G
P
BL
BR
TERMINAL
BOARD
GROUNDING
TERMINAL
L
N
SINGLE PHASE
POWER SUPPLY
1ø 220-230V 50Hz
COMMUNICATION
CIRCUIT
TO
OUTDOOR
UNIT
NOISE
FILTER
CIRCUIT
RECTIFICATION
CIRCUIT
REMOTE CONTROLLER
UP DOWN
LOUVER MOTOR
CN-STM1
WHITE
1
5
4
3
2
12V
12V
1
2
3
4
5
6
7
16
9
8
15
14
13
12
11
10
IC03
IC03
IC03
IC03
IC03
IC03
IC03
IC03
R47 1/2W
68 5%
R46 1/2W
68 5%
GND
VCC
CN-CNT
WHITE
5
1
2
3
4
5
1
2
3
4
KB
C25
1μ
16V
R62
15.0k
KB
C27
1μ
16V
R61
20.0k
SUCTION
TEMP. SENSOR
(THERMISTOR)
(15k, 3950)
TEMP. SENSOR
(THERMISTOR)
(15k, 3950)
PIPING
TEMP. SENSOR
(THERMISTOR)
(20k, 3950)
TEMP. SENSOR
(THERMISTOR)
(20k, 3950)
4
3
2
1
t°
5V
CN-TH
RED
t°
BR
1
5
R
O
O
M
Y
P
P
GR
W
BR
G
Y
ON
OFF
SET
TIMER
CANCEL
AIR SWING
TEMP
MODE
SLEEP
FAN SPEED
OFF/ON
OFF/ON
5V
5V
12V
R90
10K
10K
R82
10K
10K
L6
L5
C57
C56
C51
1000p
C52
1000p
KB
KB
PCB201
A713234
P.C.B
47 5%
R209
1/10W
27
9.2 Outdoor
Unit
9.2.1
CU-BE25TKE CU-BE35TKE
Sensor (Thermistor)
Characteristics
70
60
50
40
30
20
10
0
-10
0
10
Temperature (
o
C)
Resistance (k
Ω
)
20
30
40
50
1
2
1
2
Outdoor Air Sensor
Outdoor Heat Exchanger
Sensor
Outdoor Heat Exchanger
Sensor
Compressor Temp. Sensor
(Thermistor) Characteristics
70
60
50
40
30
20
10
0
20
40
60
Temperature (
o
C)
Resistance (k
Ω)
80
100
120
140
TERMINAL
BOARD
TO INDOOR UNIT
COMPRESSOR
AC-WHT
(WHT)
CN-MTR1
CN-MTR2
(WHT)
IC19
FG1
(GRN)
FG2
(GRN)
GRN
BLK
WHT
GRN
AC-BLK
(BLK)
DATA
(RED)
RED
GRY
RAT2
(GRY)
GRY
RAT1
(GRY)
REACTOR
RED
BLU
YLW
U (RED)
FUSE103
T3.15A L250V
V (BLU)
W (YLW)
U
V
W
3
5
1
10
14
16
P
N
SWITCHING
POWER
SUPPLY CIRCUIT
FUSE102
T3.15A L250V
FUSE101
(20A 250V)
3
2
1
COMMUNICATION
CIRCUIT
PFC
CIRCUIT
W
U
V
ELECTRONIC
CONTROLLER
MS
3 ~
3 ~
FUSE104
(15A 250V)
NOISE
FILTER
CIRCUIT
RECTIFICATION
CIRCUIT
RECTIFICATION
CIRCUIT
1
3
3
CN-T
ANK WHITE
5V
G8
R1
4.99k
1%
G8
B1
C3
1μ
C3
1μ
10V
Q1
CN-TH WHITE
5V
1
2
3
4
2
3
4
G8
G8
G8
R12
15.0k
1%
R11
15.8k
1%
C7
1μ
B1
B1
10V
C6
1μ
KB
10V
FAN MOTOR
3
2
1
C173
5V
R120
1k
B1
C175
0.01μ
50V
G5
G5
+
1
3
D9
1A5
AK
G2
CN-HOT
MS
3 ~
YLW
YLW
ELECTRO-MAGNETIC
COIL (4-WAYS VALVE)
COIL (4-WAYS VALVE)
ELECTRO-MAGNETIC
COIL (EXPANSION VALVE)
COIL (EXPANSION VALVE)
1
6
CN-STM
(WHT)
M
COMP. TEMPERATURE
SENSOR (THERMISTOR)
(50KΩ, 3950)
SENSOR (THERMISTOR)
(50KΩ, 3950)
t°
OUTDOOR AIR TEMP.
SENSOR
(THERMISTOR) (15KΩ, 3950)
SENSOR
(THERMISTOR) (15KΩ, 3950)
PIPING TEMP. SENSOR
(THERMISTOR)
(4.96KΩ, 3800)
(THERMISTOR)
(4.96KΩ, 3800)
t°
t°
D61
D62
D63
D64
AK
AK
AK
AK
G2
G2
13V
C189
0.1μ
B1
25V
15V
R127
10k
Q14
2SB1188Q
-32V
-2A
E
B
C
16
15
14
13
12
11
10
15
14
13
12
11
10
1
2
3
4
5
6
7
2
3
4
5
6
7
16
15
14
13
12
11
10
15
14
13
12
11
10
1
2
3
4
5
6
7
2
3
4
5
6
7
G2
G2
IC6
IC7
28
9.2.2 CU-BE50TKE
Sensor (Thermistor)
Characteristics
70
60
50
40
30
20
10
0
-10
0
10
Temperature (
o
C)
Resistance (k
Ω
)
20
30
40
50
1
2
1
2
Outdoor Air Sensor
Outdoor Heat Exchanger
Sensor
Outdoor Heat Exchanger
Sensor
Compressor Temp. Sensor
(Thermistor) Characteristics
70
60
50
40
30
20
10
0
20
40
60
Temperature (
o
C)
Resistance (k
Ω)
80
100
120
140
TERMINAL
BOARD
TO INDOOR UNIT
COMPRESSOR
AC-WHT
(WHT)
CN-MTR1
(WHT)
CN-MTR2
(WHT)
IC19
Q1
FG1
(GRN)
FG2
(GRN)
GRN
BLK
WHT
GRN
AC-BLK
(BLK)
DATA
(RED)
RED
GRY
RAT2
(GRY)
GRY
RAT1
(GRY)
REACTOR
RED
BLU
YLW
U (RED)
FUSE101
T3.15A L250V
V (BLU)
W (YLW)
U
V
W
3
5
5
1
10
14
16
1
CN-TANK
5V
G2
R1
4.99k
1%
C5
1μ
10V
G2
COMP. TEMP.
SENSOR (50kΩ 3950)
SENSOR (50kΩ 3950)
1
3
3
t
0
P
N
FUSE103
(20A 250V)
3
2
1
PFC
CIRCUIT
W
U
V
FAN MOTOR
ELECTRONIC
CONTROLLER
MS
3 ~
NOISE
FILTER
CIRCUIT
RECTIFICATION
CIRCUIT
EXPANSION
VALVE
VALVE
1
2
3
4
5
6
M
MS
3 ~
FUSE104
T3.15A L250V
402
403
404
5
4
3
2
1
*C178
*C186
0.01μ
50V
*C188
0.01μ
50V
*C187
0.01μ
50V
*CN-HOT
*CN-STM
*R313
1k
*R312
1k
*R311
1k
5V
G2
G2
G2
G2
+
SWITCHING
POWER
SUPPLY CIRCUIT
COMMUNICATION
CIRCUIT
RECTIFICATION
CIRCUIT
CN-TH1
(WHT)
OUTDOOR AIR TEMP.
SENSOR (15kΩ 3950)
SENSOR (15kΩ 3950)
1
4
3
2
t
0
t
0
5V
G2
R12
15.0k
1%
R11
15.8k
1%
420
419
C10
1μ
10V
C88
220μ
10V
G2
C9
1μ
10V
G2
+
4-WAYS VALVE
1
3
828
829
*D20
*Q23
*R260
e
b
15V
G2
179
180
c
236
*C174
63
64
30
31
64
30
31
835
836
837
838
836
837
838
20
52
29
G2
13V
13V
1
2
3
4
5
6
7
16
9
8
15
14
13
12
11
10
IC4
GND
VCC
G2
13V
1
2
3
4
5
6
16
9
15
14
13
12
11
VCC
G2
*D76
*D74
*D75
*D73
891
*IC5
PIPING TEMP.
SENSOR1 (4.96kΩ 3800)
SENSOR1 (4.96kΩ 3800)
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