Electronic Circuit Diagram; Indoor Unit - Panasonic CU-Z20TKE Service Manual

10. Electronic Circuit Diagram

10.1 Indoor Unit

GROUNDING
20A 250V
TERMINAL
FUSE500
TERMINAL
BOARD Y/G
(GRAY) (WHITE)
BR
L1
ACN501 ACN502
GR
N
Y
S1
W
2
3
TEMP. FUSE
102ºC 3A
TEMP. FUSE
102ºC 3A
GROUNDING
TERMINAL
Y/G
EVAPORATOR
(FOR Z20/25/35/42TKEW &
XZ20/25/35TKEW ONLY)
LIGHT SENSOR
IC201
GP1UM262R
Vout
Vcc
GND
GND GND
4 5
REMOTE CONTROLLER
ELECTRONIC
CONTROLLER
GND-A
(RECEIVER)
5V
A K
LED201 White
A K
LED202 White
A K
13V
LED203 White
R221
A K
LED204
R214
R222 0
White
C
Q1
ELECTRONIC
CONTROLLER
E
(DISPLAY)
GND-A
(FOR Z50/71TKEW & XZ50TKEW ONLY)
LIGHT SENSOR
5V
5V
IC401
C
SEN201
VOUT
1
E VCC 2
R410 JP401 GND 3
R411 JP402
4 5
R412 JP403
GND-A
R413 JP404
R414
5V
GND-A
R201
A K
LED201
R202
A K
LED202
R203
A K
13V
LED203
R221 R204
A K
R223
LED204
R214
R222 C
B
Q1
ELECTRONIC
CONTROLLER
E
(RECEIVER &
GND-A
DISPLAY)
AMP Air Conditioning
ELECTRONIC CONTROLLER (SUB)
RY-PWR
RY-PWR2
TH303
NTC
1 2
RY-PWR
20A 250V
RY-PWR2
FUSE501
CN-DATA 1
(YELLOW)
(BROWN) (BLACK)
(WHT)
3
1
AC302
ACL501 AC306
CN-DATA 1
12V 3
1
(YLW)
12V
RY-PWR
BLACK AC306 (BLK)
FUSE301
T3.15A L250V
W
AC303 (WHT)
AC304 (RED)
R
G301 (GRN)
G
COMMUNICATION
Y
7
CIRCUIT
B
6
M
W
CN-FM (WHT)
FAN MOTOR
5
BL
4
R
1
5V_
5V_
R209
CN-RCV 5V
CN-RCV
47
1
(YLW)
(WHT)
2
1
3 4
W
W
W
KRE
KB
C201 W
C202
47u 0.01u
1 4
6.3V
16V
R213 JP204 R214 GND-A
1.0k
GND-A
1%
5V
R201 1k
R202 1k
CN-DISP
(WHT)
1 1
W
R203 1k
JR4
5V
W 0
Power
W
Timer
W
R204 1k
nanoe/nanoe-G
W
C3
econavi
W
0.1u
gnd
16V
6 6
B1
CN-DISP
B GND-A (YLW)
IC05
1 16
IC05
R47
2 15
IC05
3 14 68 1/2W 68 1/2W
IC05
4 13
R409
IC05
5 12
47
IC05
6 11
IC05
7 10
IC05
C402
C401
47u 0.01u
6.3V 16V
KRE B1
IC06
1
IC06
2
1
IC06
3
IC06
CN-RCV
4
1
W IC06
(YLW)
5
W
IC06
6
W
4
5V IC06
W 7
Power
IC06
1
W
Timer
W
nanoe
W
econavi
CN-DISP
W
GND
(YLW)
8
CN-DISP
6
(WHT)
GND-A
ELECTRONIC CONTROLLER (MAIN)
F303
CN-NANO
32V
Q18
500mA
(GRN)
C65
0.1u R108
33k
25V
B1
R109
Q20
33k C
Q21
C
4.7k
B
4.7k
B
50V
10K
C66
50V 10K
100mA
1000p
100mA E
50V E
JB
C67
1000p
G7 50V
JB
CN-DATA 2
G7
1 5
(WHT)
12V
1 5
CN-DATA 2
(YLW)
G7
5V
R112
R113
10k
1k
C67
1000p
50V
SW01
NOISE FILTER
CIRCUIT
ELECTRONIC
CONTROLLER
(COMPARATOR)
RECTIFICATION
CIRCUIT
5V
CN-MSENS
CN-MSENS
(BLU)
1
4 Y
O
R
R77 R74
R78
10k 10k
1k BR
4
1
R75
C40
C44 C41
1k
0.1u
1000p 1000p
G2
5V
5V
R54 R37
270 10k
R89
NONE
C49
C45
R40
0
C14
4
1000p
50V
12V
B1
F301
5V
CN-RMT 1
32V
5V
500mA (WHT)
R90 R82
R58 10k
10k
L6 L5
1M
1%
C52 C51
C57
1000p
1000p CN-CNT
50V
50V
(WHT)
B1
B1
5
GR
5
W
BR
BZ01 5V
G
A48PKM17EPP
Y
1
12V 1
CN-STM1
R30
(WHT)
1
1
1k BR
R
R46 O
Y
P
5
5
12V
CN-STM2
(YLW)
1 BR 1
IC03
R
1 16
IC03 O
2 15
Y
IC03
3 14
P
IC03
13
4 5
5
IC03
12 12V
5
CN-STM3
IC03
11
6
(BLU)
IC03
1
BR 1
7 10
IC03
R
O
Y
P
16
5
5
15
5V CN-TH
14
(RED)
6
13
tº
12
11
tº
10
tº
1
C27 R63 C28
R62 C25 R61
1u 1u
1u 20k 20k
15k
16V
16V 1% 16V 1%
1%
B3 B3
B3
38
4
P 1
1
B W
CN2
CN1
W
3
(WHT)
(WHT) NANOE
BL
BL
2
GENERATOR
1
5
W
G7
6
7
5V_3
IC402
5V_3
5
VCC
2 1
8
1
IC402
KB
5V_3
4
3
C404
GND
0.1u
4
NJM2903M (TE1)
25V
CN-SENS2
R401
(YLW)
27.0k
G2
1% G2
R402
10.0k
1%
(BLU)
R403 KB
13.0k C402
0.1u
1%
25V
6
G2
7
5V_3
IC401
5V_3
5
VCC
2 1
8
1
IC401
KB
4
3
C403
GND
3
0.1u
NJM2903M (TE1)
25V CN-SENS1
(WHT)
G2 G2
Sensor (Thermistor)
Characteristics
70
60
50
40
30
M UP DOWN LOUVER
MOTOR (OUTER) 20
10
M LEFT RIGHT
0
LOUVER MOTOR
-10 0
M
UP DOWN LOUVER
MOTOR (INNER)
PIPING TEMPERATURE SENSOR 2 (THERMISTOR)
PIPING TEMPERATURE SENSOR 1 (THERMISTOR)
SUCTION TEMPERATURE SENSOR (THERMISTOR)
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CN-SENS2
5V_3
(YLW)
1
W
W
W
C410
3 1000p
ELECTRONIC
50V
KB CONTROLLER
(ECO SENSOR)
G2
CN-SENS1
5V_3
(YLW)
1
W
W
W
C410
3
1000p
ELECTRONIC
50V
KB
CONTROLLER
(ECO SENSOR)
G2
Pipe temp. Sensor
Intake Air Temp. Sensor
10 20 30 40 50
Temperature (°C)