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CS-A18DKD CU-A18DKD CS-A24DKD CU-A24DKD
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86
Size
13.92 MB
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Service Manual
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Air Conditioner
File
cs-a18dkd-cu-a18dkd-cs-a24dkd-cu-a24dkd.pdf
Date
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19 Electronic Circuit Diagram
19.1. Indoor Unit & Outdoor Unit
 
CS-A18DKD  CU-A18DKD
 
CS-A24DKD  CU-A24DKD
SCHEMATIC DIAGRAM 1/4
1
2
3
4
C13
0.01
R58
10k
Auto
SW
R59  1k
DISPLAY COMPLETE
9
SUPERSONIC COMPLETE
CN-DISP
CN-DISP
8
7
6
5
4
3
2
1
10
2
3
4
5
6
7
8
9
10
1
TIMER (ORG)
POWER (GRN)
IONIZER (GRN)
SUPERSONIC (BLU)
QUIET (ORG)
POWERFUL (ORG)
D104
BZ01
BZ
e
c
b
Q01
R55
1k
1
2
3
4
5
6
7
9
8
16
15
14
13
12
11
10
IC05
B1HBGGF00013
ELECTRONIC CONTROL UNIT
IC101
3
1
2
+
HA
(XH4)
C22
0.01
R68
10k
e
c
b
Q08
e
c
b
Q07
C49
D13
R38
R16
R88
10k
R69
10k
C35
C34
C33
R15
R12
R13
C19
D106
D102
D103
D105
D101
R101
47
R14
R17
R34
10k
C01
0.01
R40
10k
C32
0.1
3
2
1
3
2
1
R1
1k
R3
1M
X1
IC1
R2
5.1k
C1
0.1
CN-SONIC
CN1
1
2
R39
1k
e
c
b
Q06
R28
1k
JP6
C101
47
6.3V
77
CS-A18DKD CU-A18DKD / CS-A24DKD CU-A24DKD
SCHEMATIC DIAGRAM 2/4
R11
1k
C02
0.01
R35
5.1k
R20
R21
R22
R23
R24
R25
D07
D08
D09
D10
D11
D12
R18
R19
D05
Q02
R64
6.2k
R63
6.2k
D06
P72
P73
P74
P75
P64
P65
P66
P67
P40/A00
P41/A01
P42/A02
P43/A03
P44/A04
P45/A05
P46/A06
P47/A07
P50/A8
P51/A9
RY-PWR DRIVE SIGNAL
P52/A10
P53/A11
P54/A12
P55/A13
P56/A14
P57/A15
Vss0
VDD0
P30
P31
P32
P33
P34
P35
P11/AN1
P12/AN2
P13/AN3
P14/AN4
P15/AN5
P16/AN6
P17/AN7
Vss
VDD1
P25
P24
P23
P22/SCX
P21/S0
P20/S1
P36
46
41
42
43
44
45
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
P71
P70
P03/NTP3
P02/NTP2
P01/NTP1
P00/NTP0
Vss1
X1
X2
IC
XT1
XT2
AVref
P10/ANO
Reset
AVd0
CN-STM1
1
2
3
4
5
1
2
3
4
5
(ZH5)
VERTICAL
IC06
B1HBGGF00013
R04
R05
43 /2W
43 /2W
1
2
3
4
5
6
7
9
8 16
15
14
13
12
11
10
CN-STM2
1
2
3
4
5
1
2
3
4
5
(ZH5)
HORIZONTAL
R09
10k
IC02
5
6
8
3
1
RS
DO
DI
R/B
CS
SK
4
Vcc
GND
2
7
C3EBD0000021
JX2
R57
20k
C05
0.1
R06  24k
+
C03
0.01
1.6V
C30
0.1
R10
10k
AIR TEMP. SENSOR
(15k 3950)
(20k 3950)
PIPE TEMP. SENSOR
(PH)
CN-TH
4 3 2 1
C04
0.1
R30
20k
C08
0.1
R33
15k
IC01
STEPPING
MOTOR
DRIVE
SIGNAL
BUZZER
AUTO OPERATION
TEST RUN
REMOTE CONTROL
SOUND
TIMER SHORTEN
POWER CLOCK INPUT
REMOTE-CONTROL
COMMAND INPUT
AUTO RESTART
GROUND
POWER
RESET
PIPE TEMP
INTAKE AIR TEMP
DISPLAY
OSC
STEPPING
MOTOR 
DRIVE
SIGNAL
R44
1k
R45
1k
c
b
e
RY-PWR
RY-HOT
JP2
C37
C36
R90
10k
R91
1k
C28
0.01
JP5
R46
10
78
CS-A18DKD CU-A18DKD / CS-A24DKD CU-A24DKD
SCHEMATIC DIAGRAM 3/4
TEST
R54  1k
R48
10k
C10
0.1
R32
150k
4.096 MHz
(47pF X 2) 
+
R49
100k
O
G
I
C21
2.2
50V
C12
0.01
IC04
C23
0.1
C42
0.22
C45
0.22
D02
R08
5.1k
R47
1k
R01
100
C18
0.022
R07  20k
R42
20k
R53
1k
D01
C24
0.01
R37
10k 
R38
JX1
C15
0.01
R43
R36
10k 
C31
0.01
R31
R56
R03
100
R02
20k
X01
C25
0.01
Q03
Q05
22k
22k
CN-ION
G01
GND
4
3
2
1
1
JP3
JP4
R61
10k
R62
1k
R65
1k
R79
160
1/4W
CN-FM
7
6
5
4
3
2
1
FAN MOTOR
C06
1000p
R29
1k
R77
4.75k
R76
10k
ZD01
7.5V
ZD02
8.2V
R111
6.2k
1/4W
R112
6.2k
1/4W
R113
6.2k
1/4W
R114
6.2k
1/4W
PC04
4
1
2
3
R75
7.5k
PC06
feedback
1
4
3
2
R78
5.62k 
+
C46
10
50V
C11
0.01
25V
ZD03
8.5V
PC05
Q04
1
4
3
2
c
b
e
+
C48
0.01
PC03
4
1
2
3
D03
R72
3.9k
R73
330k
R74
330k
R71
100k
R70
100k
Z01
L01
DB03
TH01
 TH02
+
C47
0.1
450V
C20
3300
35V
C14
410
25V
C26
100
16V
R99
82k
1/4W
R98
82k
1/4W
R97
82k
1/4W
R96
82k
1/4W
IC09
G
I
5V
12V
I
G
IC08
DB02
NR
T01
5
8
13
2
REGULATOR
REGULATOR
+
~
~
O
O
R66
22k
R67
22k
DB01
+
~
~
R81
22k
1/4W
R80
22k
1/4W
+
C17
470
6.3V
RY-PWR
AC01
FUSE
T 3.15A L 250V
WHT
BLK
BRW
RED
BLU
+
R52
1.82k
C09
10
50V
PC01
TLP620
4
1
2
3
C16
0.01
R51
47k
R50
47k
RY-HOT
HOT
(RED)
DEICE
(BLU)
C51
100p
79
CS-A18DKD CU-A18DKD / CS-A24DKD CU-A24DKD
SCHEMATIC DIAGRAM 4/4
TEMPERATURE
FUSE
POWER SUPPLY
TO OUTDOOR
BLU
EH-4P
4
3
2
1
F1
CH1
VIN
GND
ERR
C2
C1
Q1
Q2
Q4
Q5
R2
c
e
b
4.7k
10k
e
b
c
C3
R4
R3
R5
D2
Z01
D4
c
e
b
C8
D1
D3
R14
R13
R9
R15
R10
R102
-4.2kV
R101
HV
CN2
R12
C5
D5
C6
Z02
c
e
b
R6
T1 D101
D102
C101
C7
GND
CN3
HIGH VOLTAGE IONIZER
RED
BLU
VLT
RED
BLU
BRW or YLW
FAN MOTOR
ORG
WHT
BLU
COMPRESSOR
CAPACITOR
RED
GRY
BLK/BLU
BLK/BLU
BLU
R
Y
-HO
T
CR1
1
2
3
4
R
Y
-DEICE
YLW
COIL
(4-WAYS VALVE)
ELECTRONIC
CONTROLLER
COMP (VLT)
TF 1
DB1
DB2
C13
FUSE
(T 2A L 250V)
FM2
(ORG)
FM1
(BRW)
ZNR2
ZNR4
ZNR3
RY
-H
/L
R
Y
-OFF
CN-TH (WHT)
SENSOR
(PIPE TEMP
.)
SENSOR
(AIR TEMP
.)
TF 2
AC1 (WHT) HOT 1 (RED)
HOT 2 (BLK)
DEICE (GRY)
CAPACITOR
1
2
3
4
1
2
3
4
80
CS-A18DKD CU-A18DKD / CS-A24DKD CU-A24DKD
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