Panasonic CS-TZ20TKEW Service Manual page 36

10.2.3 CU-TZ42TKE
SINGLE PHASE TO INDOOR UNIT
POWER SUPPLY
(BLK) (WHT) (RED)
1
2
L N
(BLK) (WHT) (RED)
RED
WHT
BLK
GRN
GRN
1
3
MS
FAN MOTOR
3 ~
5
AMP Air Conditioning
TERMINAL
3
BOARD
GRY
RAT2
(GRY)
FUSE104
(15A 250V)
DATA
(RED)
NOISE
FILTER
CIRCUIT
AC-BLK
(BLK)
FUSE101
(20A 250V)
FUSE102
T3.15A L250V
AC-WHT
(WHT)
FG 1
(GRN)
PFC
FG 2
CIRCUIT
(GRN)
10
W
U
14
V
16
CN-MTR2
IC20
(WHT)
1 R156
R166
1k
R167
1k
1k
5V
C175 C177 C176
5
0.01u 0.01u 0.01u
+
CN-MTR1 KB KB KB
C173
50V 50V 50V
(WHT)
G5 G5 G5 G5
Sensor (Thermistor)
Characteristics
70
Outdoor Air Sensor
Outdoor Heat Exchanger
60
Sensor
50
40
30
20
10
0
-10 0 10 20 30 40
o
Temperature ( C)
REACTOR
GRY
RAT1
(GRY)
COMMUNICATION
CIRCUIT
IC12
RECTIFICATION
CIRCUIT
SWITCHING POWER
SUPPLY CIRCUIT
RECTIFICATION
CIRCUIT
FUSE103
T3.15A L250V
P
N
ELECTRONIC CONTROLLER
Compressor Temp. Sensor
(Thermistor) Characteristics
70
60
50
40
30
20
10
0
50 20 40 60
Temperature (
36
5V
R11 R12
15.8k 15.0k
1% 1%
C6 C7
1u 1u
CN-TH
KB KB
(WHT)
10V 10V
G8 G8
5V
CN-TANK
G8
(WHT)
13V
VCC C3
9
1 16
1u R1
KB 4.99k
CN-HOT
2 15
10V 1%
(WHT)
3 14
G8
G8
4 13
5 12
D9
13V
6 11
7 10
C190
GND
8
G2
0.1u
G2
KB
25V
13V G2
D63
D62
VCC
D61
9
1 16
D60
2 15
3 14
IC19
4 13
CN-STM
5 12
(WHT)
6 11
7 10
GND
8
G2
Q1
U (RED)
U
V (BLU)
V
W (YLW)
W
80 100 120 140
o
C)
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OUTDOOR AIR TEMP.
SENSOR (THERMISTOR)
1
t°
t°
4
PIPING TEMP. SENSOR
(THERMISTOR)
1
t°
3
COMP. TEMPERATURE
SENSOR (THERMISTOR)
1 YLW
3 YLW
ELECTRO-MAGNETIC
COIL (4-WAYS VALVE)
1
M
ELECTRO-MAGNETIC
6 COIL
(EXPANSION VALVE)
RED
BLU MS
YLW 3 ~
COMPRESSOR