Service Manual 22
Schematic Diagram
Schematic DiagramElectronic Control Device
WP
Vcc
Digit3 (Scan3)Digit4 (Scan4)Digit1 (Scan1)Digit2 (Scan2)Digit0 (Scan0)MAIN POWER COMPHERMFANCCAPACITORMOTORFAN120 1/2W
ZNR01J
TVR14271
250V/T3.15A
FUSE
G4A-1A-E-LG
RY-COMP
1000
D02D~D05D
1N4004 35V
D03D
D02D
POWER TRANS
1
2
7
4
D05D
+
D04D
C01D
R01J
CN-WORC01J
0.1/275V
CN-BKCN-BLCN-RDRY-HI
RY-LOW
RY-MED
C06D
5V
0.01
0.1
50V 16V
1000 10V
0.01
50V 50V
C04D
12VIC01D
C03D
C02D
7812OI
+220
C05D
OIC02D
7805+
IC01L
680pF
1K
ULN2004A
IC01G
R01L
5V
1K
R01E
20
R02E
20K
R12F
10K
R02F
0.001
C02F R01F
10K
C01F
0.001
ROOM-THPIPE-THSYNCS/V-4WAYMOTOR3
14
RY-SYNC
RY-4WAY
CN-4WAY11
33
11
CN-SYNC33
12V
RY-HI
RY-MED
ULN2004A
IC01M
9
15
16
8
2
1
12V
4
4
32
OR1H
RY-SYNC
RY-LOW
RY-4WAY
RY-COMP
11
12
13
6
5
4
10 7
OR2H
5V
12.1K
R21H
R03H
0K 12.1K
1% 1%
R22H
HVBKEY1LED out2LED out1LED out03435 36
LED out3Receiver 30
Buzzer33
32
31
HIMEDION29
28
27
SLIDE SW40
KEY03738 39
VDDSEG-g4142 43
SEG-fSEG-e44
SEG-dTMP87CH47U
MICOM
4
SEG-bSEG-aSEG-c3
2
1
7
6
5
Room THOption2Option1Pipe TH23
26
25
24
SYNCLOW4WAYCOMP 202122
/ResetOsc outOsc in16
VArefVSS1819 17 131415
TEST11
SCLSDA10
9
8
Tx12 Rx
5V A1
3
4GNDSDA
SCL
A2
A0
1
2
EEPROM
24LC01BT
SMW250-04
11
2
2
CN-TH15V
R01B
R02H R01H
1%
6.2K 1%
12.1K
RT8.00MG
1M
OSC01B
50V
C01A
0.01 +C02A
1uF
50V
3
20K
R01A
6
10
AIR PURIFIER150
R07G
7108912V
16 2
12
15 3
6
150
150
150
150
150
R03G
3145126 114 13R05G
R06G
150
R04G
1162 15R01G
R02G
11
10
7
8
9
8
9
10 A/RESTART
12
6
711
14
13
4
5
A/SWINGgE/SAVER+
88 SEGMENTGND
RECEIVER
BZ01E
-4002
PKM13EPY
Vout
Vcc
8
10V
5V
220
C22L
d dDEFROST fc
FANDRY/HEATTIMER7
1
ef
e
2
3
d
COOL4
5
b
Digit1
a
bfbcceg ga aDigit0
5V5V 17
117
1D03F
5V
ENERGYSAVERSW3
D07F
TEMP UPSW7
1K
R04P
6
5
20K 20K
R02P
8
7R03P 5V
A101S
D02F
TIMERSW2D01F
FANSW1
TEMP DOWND05F
SW5
MODED04F
SW4
D08F
AUTO SWINGSW8
SW6
ON/OFFD06F
14
4
2
16
3
15
A101S
Q03G
A101S
Q02G
5
13
Q01G
A101S
1
IC01A
S7136
2
3.6V
5V
Q04G
CN-DISPCN-DISP