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20 Room Air Conditioner
Schematic Diagram
33
22
11
HVB
5V
b
c
R04P
X
O
O
X
5V
R04P
8
EEPROMModel
1
EEPROM
A0
5V
S7136
IC01A
3.6V
2
1
R01A
20K
3
+
10V
1uF
C02A
CAT93C46
Vcc
Auto Restart
Non Auto Restart
20K
R03P
20K
5
7
6
R02P
Q03G
1K
R04P
A101S
Q01G
A101S
Q02G
SW03G
D03G
SW06G
D06G
TEMP UP
D02G
D05G
SW02G
MODE
SW05G
TEMP DOWN ON/OFF
D01G
D04G
FAN
SW01G
TIMER
SW04G
A101S
4
2
3
A2
GND
A1
10K
R06P
R05P
10K
Rx
SDA
SCL
Digit4 (Scan4)
0.001
C01F
R01F
10K
C02F
0.001
R03F
10K
Digit1 (Scan1)
SEG-c
SEG-a
SEG-b
Digit0 (Scan0)
Digit2 (Scan2)
Digit3 (Scan3)
SCL
SDA
WP
0.01
C01A
50V
1M
R01B
OSC01B
RT8.00MG
1%
12.1K
R02H
6.2K
1%
R04H
5V
2
1
CN-TH1
SMAW200-02
2
1
1
2
5V
12
TEST
14 13
8
9
10
11
1619 18
VSS
VAref
17 15
Osc in
Osc out
/Reset
21 2022
24
25
26
23
5V
4WAY
SYNC
LOW
COMP
Pipe TH
Option1
Option2
Room TH
5
6
7
1
2
3
4
MICOM
TMP87CH47U
SEG-d
44
SEG-e
SEG-f
4342
VDD
40
SEG-g
3837
KEY0
39
SLIDE SW
41
27
28
29
31
32
33
30
ION
MED
HI
Receiver
LED out3
Buzzer
363534
LED out0
LED out1
LED out2
KEY1
HVB
R22H
1%
12.1K
R21H
12.1K
1%
OR2H
7
4
5
6
9
8
7
OR1H
13
12
11
10
5V
1
2
9
8
IC01M
1K
R02E
20
GND
Vout
RECEIVER
Vcc
R01L
5
4
12V
+
5V
10V
220
C02L
ULN2004A
16
15
14
3
6
680pF
C01L
R01P
20K
50V
3
Digit0
510
a
f
a
b
Digit1
a
3
9
b
8
c
d
f
d
e
d
c
7
e
4
f
1
g
e
6
g g
COOL
DEFROST
DRY/HEAT
TIMER
FAN
E/SAVER
R02G
R03G
R04G
R01G
680
680
680
680
R05G
R06G
R07G
12V
680
680
680
IC01G
15
14
13
4
3
2
161
12
11
10
7
6
5
98
ULN2004A
10K
5V
5V
R12F
R01E
1K
5V
C06D
BZ01E
PKM13EPY
-4002
+
C05D
50V
10V
220
0.01
10
12V
11
12
CN-AC/DC
51581-12(YEONHO)
52044-1245(MOLEX)
C05D
5V
12V
I
C04D
O
7805
IC02D
25V
25V
0.01
0.01
ANGLE
11
12
Rx
Tx
1K
Q03T
C104M
5V
5V
Q02T
A104M
Q01T
C104M
Q04T
A104M
C03T
0.001
R01T
25V
C02T
0.001
D01T
1N4148
C01T
0.1
50V
5V
(RD)
CN-TELE
CN-TH2
SMW200-03
SMW250-02
4
6
5
J7
RY-COMP
RY-4WAY
RY-LOW
9
8
CN-TH2
X
O
X
O
J07
O
X
X
O
RY-4WAY
RY-MED
RY-HI
CN-4WAY
7
J5
2
2
PIPE-TH
2
2
1
1
3
3
1
1
2
2
SW2
CN-HVB
SMW200-03(BL)
CN-CONT
SMW200-03(YL)
Model
RY-4WAY
3
3
3
3
1
1
2
2
SW1
33
11
CN-4WAY
YW396-03AV(YL)
SMW200-03(WH)
CN-12V
12V
Cool Only
Heat Pump
1
1
10
S/V-
4WAY
3
5V
2
1
12V
CN-AC/DC
51580-12
52045-1245
+
I
7812
IC01D
C03D
C01D
D04D
+
O
C02D
16V
35V
50V
1000
1000
0.1
4
7
D02D
D03D
2
1
POWER TRANS
1N4004
D02D~D05D
D05D
STRAIGHT
RY-HI
RY-MED
RY-LOW
R01J
C01J
0.1/275V
1
3
1
3
5
7
9
5
7
9
33
11
CN-PWR
CN-MOTOR
YW396-09AV
YW396-03AV
SVC271D-14A
ZNR01J
SVC271D-14A
RY-COMP
G4A-1A-E-LG
FUSE
250VT3.15A
120 1/2W
CAPACITOR
C
MAIN POWER
MOTOR
FAN
COMP
FAN
HERM
ROOM-TH
88 SEGMENT
Electronic Control Device
Schematic Diagram