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Haier Manuals
Air Conditioner
AS18TB3HRA
Service manual
Circuit Diagrams - Haier AS18TB3HRA Service Manual
Wall mounted type dc inverter
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11. Circuit diagrams
1
+5V
1
2
+5V
2
3
4
MODE
2
RST
1
+5V
RST
+5V
+12V
+12V
+12V
9
8
COM
E
12V
10
10
7
10
7C
7B
A
9
11
6
9
6C
6B
B
8
12
5
8
5C
5B
C
7
13
4
7
4C
4B
D
6
14
3
6
3C
3B
12V
5
15
2
5
2C
2B
A
4
16
1
4
1C
1B
B
3
3
C
2
2
D
1
1
+12V
9
8
COM
E
10
7
7C
7B
11
6
6C
6B
+12V
12
5
5C
5B
12V
13
4
5
4C
4B
A
14
3
4
3C
3B
15
2
B
3
2C
2B
C
16
1
2
1C
1B
D
1
+15V
7
6
5
4
3
2
1
VS
+5V
+5V
5
4
+5V
3
6
2
7
1
8
8
A0
VCC
7
A1
TEST
6
SCL
A2
SCL
5
SDA
VSS
SDA
2
+5V
EEPROM
1
C1 8
100n F
+5V
1
P33/SSI
2
P34/SDA/SCS
MODE
3
MODE
HXF
4
HXF
P43/XCIN
5
P44/XCOUT
6
RST
RESET
7
P47/XOUT
8
VSS/AVSS
9
P46/XIN
10
VCC/AVCC
BUZZ
11
P54/TCIOD
12
LSTEP_A
P53/TCIOC
13
LSTEP_B
P52/TCIOB
LSTEP_C
14
P51/TCIOA/TCTRG
LSTEP_D
15
P50/TCCLK
USTEP_A
16
P27/TDIOD1
+5V
2
CHECK/S_TIME
1
+5V
+15V
+5V
5267-04A-
BM
J45
1
25/35
A/B
J46
ROOM
PIPE
48
KI1/AN9/P11
47
KI2/AN10/P12
46
KI3/AN11/P13
45
(INT2)/P32
44
(INT1)/P36
43
TAO/P30
42
TBO/P31
41
TXD2/P63
COMM_TX
40
RXD2/P64
COMM_RX
39
(CLK1)/CLK2/P65
38
RXD1/INT3/P67
37
TXD1/INT2/P66
36
INT0/P45
35
TEO/P60
34
TFO00/P80
33
TFO01/P81
REMOTE_TX
+5V
+5V
C2 4
SWITCH
10nF
CN3 4
+5V
4
GND
3
TX
2
RX
1
-
44
1
FLZ1
1B
1C
2
HXF
2B
2C
3
3B
3C
4
4B
4C
2
5
+5V
5B
5C
6
6B
6C
7
7B
7C
8
E
COM
1
2
+5V
+5V
4
3
2
1
IR
DIG_MODE
DIGL
DIGH
R93
10K
SER
RCK
SRCK
IR
+5V
+5V
3 R53,R6,R16,R18,R17,R21
R40 10K
R34
1K
R73
10K
REMOTE_RX
+5V
R38 10K
C1 3
10nF
N1
SS8050LT1H
N2
SS8050LT1H
R56
4.7K
R66 10K
+5V
FK
2
1
Domestic air conditioner
Circuit diagrams
+12V
16
FLZ
12V
15
HXF1
5
14
A
4
13
B
3
12
C
2
11
D
1
10
9
+12V
IR
1
1
RCK
2
2
3
SER
3
4
SRCK
4
GG
5
5
6
GND
6
5V
7
7
DIGH
8
8
9
DIGL
9
10
MODE
10
+5V
COM3
1
COM2
2
3
+5V
GND
4
5
SER
RCK
6
SRCK
7
8
IR
+12V
R35 10K
D15
CN3 6
RLS4148
2
1
D16
RLS4148
1
2
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