Service Manual

REFERENCE INFORMATION
PAGE 48
ENGLISH
Indoor Board Schematic
REFERENCE INFORMATION
PAGE 60
ENGLISH
Indoor Board Schematic
HSU12�HG(DB)-SM wiring Diagrams
Domestic Air Conditioner
91
11.Circuit Diagrams 11.1.INDOOR UNIT
A0
1
A1
2
A2
3
VSS
4
SDA
5
SCL
6
TEST
7
VCC
8
IC1 AT24C02B
R33 560Ω
+5V
C11
0.1uF
R29 10K
R30 10K
SCL SDA
EEPROM
R3 2K
C1 0.1uF
R11 2K
R23 10K
R10 10K
+5V
reset circuit
XT1
FCR
8.0MC5(
ϝ㛮)
C3
10nF
C7
10nF
R25
1K
R24
1K
R28 4.7K±1%
R27
4.7K±1%
1 2 3 4
CN1
+5V
E5
4.7uF-50V
E3
4.7uF-50V
ROOMPIPE
ROOM PIPE
R18 100Ω/560Ω R17 100Ω/560Ω R21 100Ω/560Ω R31 1K
+5V
IR SRCK RCK SER
COM3 COM2
R6
100Ω
R16
100Ω/560Ω
GND +5V
1 2 3 4 5 6 7 8
CN32
E7
100uF-16V-105
ć
1 2 3 4 5 6 7
CN32''
GND
IR
TIM POW
O3 +5V
RUN
A1
1
A2
2
A3
3
A4
4
A5
5
A6
6
A7
7
GND
8
+12
9
B7
10
B6
11
B5
12
B4
13
B3
14
B2
15
B1
16
IC8 ULN2003A
R72 1K R79 1K R80 1K R76
1K
C15 0.1uF
+12V
R70 1K
1 2 3 4 5
CN11
+12V
1
2
3
4
5
CN11'
A
B C D
BUZZ1
PKM13EPY-4002
R50 2K
R82 220Ω
+12V
+5V
R4 Comment: 1K
R1
Comment: 10K
C5
Comment: 0.1uF
urgent switch
1
1
2
2
SW1 JTP1288LA
1 2
JP1
TJC8-02
R5 1K
R2 10K
C16 0.1uF
+5V
C6
0.1uF
E2
100uF-16V-105
ć
SER SRCK GG RCK 5V GND IR DIGH DIGL
Display 0011800184/0033
1 2
CN48
B2B-XH-A-R-Red
C19
1nF
R53
100Ω
12V
A
B
C
D
12V
1
1
2
2
SW1'
TSVC-1
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
CN32'
MODE
FLZ RST
IR
SWITCH
BUZZ
NET_TX NET_RX PG_BACK
PG_OUT
CHECK/S_TIME USTEP_A USTEP_B USTEP_C
MO O RD_ P ET SU
PIPE A/B RCK SER SRCK REMOTE_RX REMOTE_TX
R88 10K
1 2 3 4
CN34 5267-04A
R98
100Ω
R97
100Ω
R89 10K
+5V
C24
10nF
RX
TX
GND +5V
NET_TX
net com
DIGH DIGL SER SRCK RCK USTEP_A USTEP_B USTEP_C USTEP_D BUZZ FLZ
R81 1K
3 4
2 1
K2
892N-1AC-C
Red White FLZ
1
CON8
1
CON6
+12V
R9
1M
CHECK/S_TIME
IR
R56 4.7K
1 2
CN36
R35 10K
+12V
C13 10nF
R73 10K
R38 10K
R34 1K
R83
10K
R43 27Ω
R66 10K
+5V
REMOTE_TX REMOTE_RX
remote com
220V_L
POWER_N
R52 10K
R51 10K R55 10K
R60 10K
+5V
R54 10K
R49 10K R42 10K
SWITCH
RST
R63 10K
R77 10K
R65
10K
R75 10K
R78 10K
COMM_TX
COMM_RX
SETP_MOTOR
C18
0.1uF
25/35
+5V
R85 10K
+5V
R86 10K
P3_3/SSI
1
P3_4/SDA/SCS
2
MODE
3
P4_3/XCIN
4
P4_4/XCOUT
5
RESET
6
P4-7/XOUT
7
VSS/AVSS
8
P4_6/XIN
9
VCC/AVCC
10
P5_4/TRCIOD
11
P5_3/TRCIOC
12
P5_2/TRCIOB
13
P5_1/TRCIOA/TRCTRG
14
P5_0/TRCCLK
15
P2_7/TRDIOD1
16
P2_6/TRDIOC1
17
P2_5/TRDIOB1
18
P2_4/TRDIOA1
19
P2_3/TRDIOD0
20
P2_2/TRDIOC0
21
P2_1/TRDIOB0
22
P2_0/TRDIOA0/TRDCLK
23
P1_7/TRAIO/INT1
24
P1_6/CLK0
25
P1-5/RXD0(TRAIO)/INT1
26
P1_4/TXD0
27
P8_6
28
P8_5/TRFO12
29
P8_4/TRFO11
30
P8_3/TRFO10/TRF1
31
P8_2/TRFO02
32
P8_2/TRFO01
33
P8_1/TRFO00
34
P6_0/TREO
35
P4_5/INT0
36
P6_6/INT2/TXD1
37
P6_7/INT3/RXD1
38
P6_5/(CLK1)/CLK2
39
P6_4/RXD2
40
P6_3/TXD2
41
P3_1/TRBO
42
P3_0/TRAO
43
P3_6/INT1
44
P3_2/INT2
45
P1_3/KI3/AN11
46
P1_2/KI2/AN10
47
P1_1/KI1/AN9
48
P1_0/KI0/AN8
49
P0_0/AN7
50
P0_1/AN6
51
P0_2/AN5
52
P0_3/AN4
53
P0_4/AN3
54
P6_2
55
P6_1
56
P0_5/AN2/CLK1
57
P0_6/AN1/DA0
58
VSS/AVSS
59
P0_7/AN0/DA1
60
VREF
61
VCC/AVCC
62
P3_7/SSO
63
P3_5/SCL/SSCK
64
IC2
R5F212A7SNFA
MODE
write online
+5V
RST MODE
+5V
DIGH DIGL
R32
10K
SCL SDA
DIG_MODE
DIG_MODE
1 2
JP3 TJC8-02
1 2
JP2
TJC8-02
+5V
motor PG
&
X)
+15V
5
.
5 .
5
390Ω
VS
R64
.
R59
.
5 10K
TLP421
IC3
TLP421
1 2
4 3
IC7
TLP421
+15V
(
47uF-50V-105
ć
5 10K
motor out
&
Q)
5 .
+5V
1 2 3 4 5 6 7
CN26
(
4.7uF-50V-105
ć
PG_OUT PG_BACK
CON15
200±10mm -Red
CON14
200±10mm -black
Note
˖
R54,R63,R85,R86 is used for display selection
DŽ
CON16
200±10mm -black
R93 10K
R62
10K
+5V
Note3
˖
R53,R6,R16,R18,R17,R21
note2
˖
SW1,SW1',CN48 select one
select accoding to diaplay For change
5 .
R74 10K
R87
4.7K
3 4
2 1
K3
892N-1AC-C
+12V
HXF
HXF
1
CON9
Air fresh
blue
NET_RX
R71
10K
乘⬭
FK
R41 10KR44 10K
R45 10K
R67 10K R46
10K
R47 10K R48
10K
R99
2K
R100
2K
R95 10K
R101 10K
R92 2K
C12 0.1uF
C27
0.1uF
+5V
FK
Room Card
1 2
CN20
B2B-XH-A-Green-
N8
2SC2412K
R40
10K
TVS1
HTVSB7.0CA-100
P1
2SA1037AK
N1
2SC2412K
N2 2SC2412K
N4 2SC2412K
D4 RLS4148
D6 RLS4148
A/B
+5V
C20 0.1uF
25/35
C2 0.1uF
1 2 3 4
5 6 7 8
SW2
R96 10K
R69 2K
R7 2K
R8 10K
R102 10K
R104
2K
R37 10K
C28 0.1uF
R103 20K
BM
BM
LED1
+5V
1 2 43
A B C D
4
321
D
C B A
C8
0.1uF-50V
A
1
K
2
C
4
E
3
IC4 TLP851/PC851
A
1
K
2
C
4
E
3
IC6 TLP421
R22 2K-1/4W
R26 2 K-2 W
R12
1 00 K-1/ 4W
E4
100uF-50V-105
ć
CY3
2.2nF-250VAC
220V_L POWER_N
R14 47K-2W R15 47K-2W
COMM
NEW FREEMATCH COM CIRCUIT
1 2
C N3 0
RTB- 1.5-2P
220V_L
FUSE1
T3. 1 5A-25 0 VAC
1
C ON1
1
1
2
4
3
2
4
3
LX1
LB2271(32mH-0.35A)
Black
L
~22 0 VAC
C Y1
2.2nF-250VAC
C Y2
2.2nF-250VAC
1
C ON 1 3
1
C ON2
RV1
TVR14 5 61 *
CX1
0.1uF-275VAC
1
&21
⬉⑤
N
1 2 3 4
CN002
80±5mm -Red/Black-4P
+5V
GND
+12 V GND
+5V
C17
0.1uF
E1 220uF-25V-105
ć
+12V
C4
0.1uF
E6
220uF-25V-105
ć
Whit e
Switch power supply
A
1
K
2
C
4
E
3
,& 7/3
+12 V
Vin
1
GND
2
Vo ut
3
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+15 V
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1
6
2 3
54 7
T00 1
BCK-6-FE19 0 1H
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D0 03
1N5399
D004 1N5399 D0 01
1N5399
D0 02
1N5399
&
0.1uF-275VAC
17&
SCK084R72
ZD001
18V -1W
ZD00 2
1N4742A(12V-1W)
5
.:
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CON00 2
CON00 1
CON00 3
200 ±1 0mm -Black
CON00 4
200±1 0mm -Red
CON00 5
1 2 3 4
CN0 01
8 0± 5 mm -Re d /B la ck -4 P
( X)9ć
ZD00 3
1N4746A(18V-1W)
&
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220VAC~/5 0HZ
&
0.1uF-275VAC
+5V
+12 V
GND GND
This Swi tch power s upp ly is desig ned for 12 W
RED BLACK
310V
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
IC0 0 3
ICE2 A26 5
VCC
R13 330Ω
R20 1K
R19
1 0K
C9
1nF
+5V
COMM_RX
C OMM_ TX
COMM_ TX
COMM_RX
5 .
5 .
N5
SS8050LT1H
D11 1N4007
ZD1
1N4746A(18V-1W)
D12 1N4007