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Model
CS-TZ20TKEW CS-TZ25TKEW CS-TZ35TKEW CS-TZ42TKEW CS-MTZ16TKE CU-TZ20TKE CU-TZ25TKE CU-TZ35TKE CU-TZ42TKE
Pages
127
Size
23.23 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner / AIR CONDITIONER
File
cs-tz20tkew-cs-tz25tkew-cs-tz35tkew-cs-tz42tkew-cs.pdf
Date
PREV: Panasonic CS-BE25TKE / CU-BE25TKE / CS-BE35TKE / CU-BE35TKE / CS-BE50TKE / CU-BE50TKE / CS-TE20TKEW / CU-TE20TKE / CS-TE25TKEW / CU-TE25TKE / CS-TE35TKEW / CU-E35TKE / CS-TE42TKEW / CU-TE42TKE / CS-TZ20TKEW / CU-TZ20TKE / CS-TZ25TKEW / CU-TZ25TKE / CS-TZ35TKEW / CU-TZ35TKE / CS-TZ42TKEW / CU-TZ42TKE / CS-TZ50TKEW / CU-TZ50TKE Service Manual / Supplement

Panasonic CS-TZ20TKEW / CS-TZ25TKEW / CS-TZ35TKEW / CS-TZ42TKEW / CS-MTZ16TKE / CU-TZ20TKE / CU-TZ25TKE / CU-TZ35TKE / CU-TZ42TKE Service Manual ▷ View online

33 
10.  Electronic Circuit Diagram 
10.1 Indoor Unit 
 
70
60
50
40
30
20
-10
0
10
20
30
40
50
10
0
Re
s
is
ta
n
c
e
(k
Ω
)
Sensor (Thermistor)
Characteristics
Pipe temp. Sensor
Intake Air Temp. Sensor
Temperature (°C)
GROUNDING 
TERMINAL
Y/G
G
EVAPORATOR
FAN MOTOR
BL
BL
W
W
B
R
R
Y
7
4
1
4
5
1
6
5
5
1
1
1
5
1
1
1
5
TO OUTDOOR UNIT
TERMINAL
BOARD
NOISE FILTER
CIRCUIT
COMMUNICATION
CIRCUIT
AC306
(BLK)
AC303
(WHT)
AC304
(RED)
G301
(GRN)
CN-FM 
(WHT)
FUSE301
T3.15A L250V
SW01
CN-DISP
(YLW)
ELECTRONIC CONTROLLER 
(MAIN)
REMOTE CONTROLLER
COMPLETE
TEMP. FUSE
102ºC 250V 4.5A
CN-RMT (WHT)
CN-CNT (WHT)
CN-STM1 (WHT)
CN-TH (RED)
CN-DISP
(WHT)
ELECTRONIC CONTROLLER
(DISPLAY & RECEIVER)
RECTIFICATION
CIRCUIT
PIPING TEMP. SENSOR 2 (THERMISTOR)
PIPING TEMP. SENSOR 1 (THERMISTOR)
SCUTION TEMP. SENSOR (THERMISTOR)
O
R
Y
BR
P
5
1
M
UP DOWN 
LOUVER MOTOR
(OUTER)
O
R
Y
BR
P
5
1
M
UP DOWN 
LOUVER MOTOR
(INNER)
t°
t°
t°
1
2
3
M
CN-STM3
(BLU)
W W W W W
R47
68  1/2W 68  1/2W
R46
12V
3
4
5
6
7
2
1
16
15
14
13
12
11
10
IC05
IC05
IC05
IC05
IC05
IC05
IC05
5V
R30
1k
BZ01
A48PKM17EPP
1
2
12V
3
4
5
6
7
2
1
16
15
14
13
12
11
10
IC03
IC03
IC03
IC03
IC03
IC03
IC03
5V
R62
15k
1%
R61
20k
1%
R63
C25
1u
16V
B3
C27
1u
16V
B3
C28
R90
10k
R82
10k
L6
L5
C57
C52
1000p
50V
B1
C51
1000p
50V
B1
F301
5V
5V
12V
C56
5V
5V
C3
0.1u
16V
B1
R89
NONE
R37
10k
R54
270
C47
NONE
C45
C49
NONE
C48
NONE
5V
R85
5.1k
 
 
 
 
 
 
 
 
 
 
 
34 
10.2 Outdoor Unit 
10.2.1  CU-TZ20TKE  CU-TZ25TKE 
 
Sensor (Thermistor)
Characteristics
70
60
50
40
30
20
10
0
-10
0
10
Temperature (
o
C)
Resistance (kΩ)
20
30
40
50
1
2
1
2
Outdoor Air 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 (kΩ)
80
100
120
140
MS
3 ~
U
V
W
P
N
Q1
M
REACTOR
W
U
V
MS
3 ~
t°
t°
t°
TO INDOOR UNIT
SINGLE PHASE
POWER SUPPLY
(WHT)
(WHT)
(WHT)
(BLK)
(RED)
(RED)
L
N
(BLK)
1
2
3
GRN
GRN
BLK
BLK
YLW/GRN
WHT
WHT
RED
AC-WHT
AC-BLK
(BLK)
DATA
(RED)
GROUNDING TERMINAL
FUSE101
(20A 250V)
FG 1
(GRN)
FG 2
(GRN)
CN-MTR1
(RED)
CN-MTR2
(WHT)
FAN MOTOR
NOISE
FILTER
CIRCUIT
3
5
1
1
10
14
16
3
IC19
ELECTRONIC CONTROLLER
FUSE102
T3.15A L250V
FUSE104
(15A 250V)
PFC
CIRCUIT
RECTIFICATION
CIRCUIT
SWITCHING POWER
SUPPLY CIRCUIT
COMMUNICATION
CIRCUIT
RECTIFICATION
CIRCUIT
FUSE103
T3.15A L250V
GRY
RAT2
(GRY)
RAT1
(GRY)
GRY
TERMINAL
BOARD
OUTDOOR AIR TEMP.
SENSOR (THERMISTOR)
1
4
CN-TH
(WHT)
PIPING TEMP. SENSOR
(THERMISTOR)
1
3
CN-TANK
(WHT)
COMP. TEMPERATURE
SENSOR (THERMISTOR)
YLW
YLW
1
3
CN-HOT
(WHT)
ELECTRO-MAGNETIC
COIL (4-WAYS VALVE)
ELECTRO-MAGNETIC
COIL
(EXPANSION VALVE)
CN-STM
(WHT)
1
6
RED
BLU
YLW
U (RED)
V (BLU)
W (YLW)
COMPRESSOR
D9
1A5
AK
G2
C173
5V
R120
1k
B1
C175
0.01u
50V
G5
G5
+
5V
G8
R1
4.99k
1%
B1
C3
1u
10V
G8
5V
G8
R12
15k
1%
R11
15.8k
1%
C7
1u
B1
10V
G8
C6
1u
B1
10V
G8
C189
0.1u
B1
25V
G2
13V
D64
K
A
D63
K
A
D62
K
A
D61
K
A
G2
 
 
 
 
 
 
 
 
 
 
 
 
 
35 
10.2.2 CU-TZ35TKE 
 
Sensor (Thermistor)
Characteristics
70
60
50
40
30
20
10
0
-10
0
10
Temperature (
o
C)
Resistance (kΩ)
20
30
40
50
Outdoor Air 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 (kΩ)
80
100
120
140
MS
3 ~
U
V
W
P
N
Q1
M
REACTOR
W
U
V
MS
3 ~
t°
t°
t°
TO INDOOR UNIT
SINGLE PHASE
POWER SUPPLY
(WHT)
(WHT)
(WHT)
(BLK)
(RED)
(RED)
L
N
(BLK)
1
2
3
GRN
GRN
BLK
BLK
YLW/GRN
WHT
WHT
RED
AC-WHT
AC-BLK
(BLK)
DATA
(RED)
GROUNDING TERMINAL
FUSE101
(20A 250V)
FG 1
(GRN)
FG 2
(GRN)
CN-MTR1
(WHT)
CN-MTR2
(WHT)
FAN MOTOR
NOISE
FILTER
CIRCUIT
3
5
1
1
10
14
16
5
IC19
ELECTRONIC CONTROLLER
FUSE102
T3.15A L250V
FUSE104
(15A 250V)
PFC
CIRCUIT
RECTIFICATION
CIRCUIT
SWITCHING POWER
SUPPLY CIRCUIT
COMMUNICATION
CIRCUIT
RECTIFICATION
CIRCUIT
FUSE103
T3.15A L250V
GRY
RAT2
(GRY)
RAT1
(GRY)
GRY
TERMINAL
BOARD
OUTDOOR AIR TEMP.
SENSOR (THERMISTOR)
1
4
CN-TH
(WHT)
PIPING TEMP. SENSOR
(THERMISTOR)
1
3
CN-TANK
(WHT)
COMP. TEMPERATURE
SENSOR (THERMISTOR)
YLW
YLW
1
3
CN-HOT
(WHT)
ELECTRO-MAGNETIC
COIL (4-WAYS VALVE)
ELECTRO-MAGNETIC
COIL
(EXPANSION VALVE)
CN-STM
(WHT)
1
6
RED
BLU
YLW
U (RED)
V (BLU)
W (YLW)
COMPRESSOR
5V
G8
R1
4.99k
1%
C3
1u
KB
10V
G8
5V
G8
R12
15.0k
1%
R11
15.8k
1%
C7
1u
KB
10V
G8
C6
1u
KB
10V
G8
C189
0.1u
KB
25V
G2
13V
D62
D63
D64
D61
13V
1
2
3
4
5
16
9
15
14
13
12
6
11
7
GND
8
10
IC6
VCC
G2
GND
8
G2
13V
1
2
3
4
16
2
4
1
9
2
4
1
9
9
15
14
13
IC7
CN1
CN1
VCC
5
12
6
7
11
10
C173
5V
R105
1k
C176
0.01u
KB
50V
G5
R111
1k
C177
0.01u
KB
50V
G5
R120
1k
C175
0.01u
KB
50V
G5
G5
+
D9
G2
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
36 
10.2.3 CU-TZ42TKE 
 
Sensor (Thermistor)
Characteristics
70
60
50
40
30
20
10
0
-10
0
10
Temperature (
o
C)
Resistance (kΩ)
20
30
40
50
Outdoor Air 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 (kΩ)
80
100
120
140
MS
3 ~
U
V
W
P
N
Q1
M
REACTOR
W
U
V
MS
3 ~
t°
t°
t°
TO INDOOR UNIT
SINGLE PHASE
POWER SUPPLY
(WHT)
(WHT)
(WHT)
(BLK)
(RED)
(RED)
L
N
(BLK)
1
2
3
GRN
GRN
BLK
BLK
YLW/GRN
WHT
WHT
RED
AC-WHT
AC-BLK
(BLK)
DATA
(RED)
GROUNDING TERMINAL
FUSE101
(20A 250V)
FG 1
(GRN)
FG 2
(GRN)
CN-MTR1
(WHT)
CN-MTR2
(WHT)
FAN MOTOR
NOISE
FILTER
CIRCUIT
3
5
1
1
10
14
16
5
IC20
ELECTRONIC CONTROLLER
FUSE102
T3.15A L250V
FUSE104
(15A 250V)
PFC
CIRCUIT
RECTIFICATION
CIRCUIT
SWITCHING POWER
SUPPLY CIRCUIT
COMMUNICATION
CIRCUIT
RECTIFICATION
CIRCUIT
FUSE103
T3.15A L250V
GRY
RAT2
(GRY)
RAT1
(GRY)
GRY
TERMINAL
BOARD
OUTDOOR AIR TEMP.
SENSOR (THERMISTOR)
1
4
CN-TH
(WHT)
PIPING TEMP. SENSOR
(THERMISTOR)
1
3
CN-TANK
(WHT)
COMP. TEMPERATURE
SENSOR (THERMISTOR)
YLW
YLW
1
3
CN-HOT
(WHT)
ELECTRO-MAGNETIC
COIL (4-WAYS VALVE)
ELECTRO-MAGNETIC
COIL
(EXPANSION VALVE)
CN-STM
(WHT)
1
6
RED
BLU
YLW
U (RED)
V (BLU)
W (YLW)
COMPRESSOR
5V
G8
R1
4.99k
1%
C3
1u
KB
10V
G8
5V
G8
R12
15.0k
1%
R11
15.8k
1%
C7
1u
KB
10V
G8
C6
1u
KB
10V
G8
C190
0.1u
KB
25V
G2
13V
D61
D62
D63
D60
13V
1
2
3
4
5
16
9
15
14
13
12
6
11
7
GND
8
10
IC12
VCC
G2
GND
8
G2
13V
1
2
3
4
16
9
15
14
13
IC19
VCC
5
12
6
7
11
10
C173
5V
R156
1k
C176
0.01u
KB
50V
G5
R166
1k
C177
0.01u
KB
50V
G5
R167
1k
C175
0.01u
KB
50V
G5
G5
+
D9
G2
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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