LG LS301HE - Schematic Diagram; Heat Pump;Cooling Only Series(Indoor Unit)

Service Manual 43
Schematic Diagram
Schematic Diagram
Heat Pump/Cooling Only Series(Indoor Unit)
AIR CLEAN
DEFROST
OPERATION
RESTART
COMP/
TIMER
AUTO
17
12
16
14
15
13
7
9
8
11
10
6
24
19
22
23
20
21
18
37
31.
25
26
29
27
28
30
32
33
35
34
36
41
40
42
38
39
43
OPERATION
RESTART
FORCED
AUTO
56
64
4
5
3
2
1
57
62
61
63
59
58
60
50
54
55
52
53
51
45
44
47
46
49
48
ZBF503D
O/L
OR3H
KID65004AF
IC02M
CN-L/R 1(BL)
666 6
12
5
CN-Comm
12V
TXD
RXD
5V
55 44
3 2 1
3 2 1
CN-DISP
RECEIVER
Vcc
11
5
4
3 2
LED3 LED5 LED2 LED1
5
11
3 2
4
5V
+
220
10V
C02L
CN-SW2
2 3
2 3
55
44
3
1
2
3
1
2
C10D
10V SD
220
5V
+
78L05BP
C08D
103 50V
220
10V SD
C09D
+
O
L4 100nH SMD 2012
IC04D
7805
L1
12V
C06D
330
25V SD
C07D
104
50V
I
OJ4H
5V
103 C07F
1K
sw2
5V
R11H~R14H
20K
C11M
20K
R02P 2012
A2 G
WP
7
6
8
Vcc
20K
R01P
2012
2 3 1
A0
5
SDA
4
EEPROM
A1
SCL
R11H
OJ1H
R14H
R07F
R06F
20K
5V
20K
R04F
20K
R02F
10
11
103
sw2
5V
C10M
OJ2H OJ3H
R12H R13H
6
7
CN-TH2
TXD
RXD
33 22 11
C12
OR6H
Hi Med
OR5H
5V
OR4H
Low
Vss0
Vdd0
A V 1 d d
RESET AVdd AVref
s s A V
X1 X2 Vss1 INT0
LED DISPLAY ASS'Y
(UP/DOWN)
STEPPING MOTOR
GND
Vout
10
9 7
8
LED4
9
8
7
10
SW1 SW2
RD
YL
OR
CN-DISP
Receiver
99 7
8
7
8
1010
1 1
3 2
3 2
PK BL
CN-U/D
44 55
KID65004AF
IC01G
HVB CON
12V
13
16 14
15
R01G~R05G
220
9
9 10
11
12
4
3
2
1
8
8
5
6
7
14
15
16
13
KID65004AF IC01M
4
1
2
3
1610 11 1312 14 159
7
8
Z B
645132
INT1
PK
(LEFT/RIGHT)
BL
5
5
STEPPING MOTOR
OR
YL
4
3
4
3
RD
2
1
1
2
C81
RXE250 POLY SW
+
R90C 1K
R96C
R95C 10K
IC10
7812
C04
50V
104
+
25V
470uF
C03
O
I
TXD OUT
DC 5V
10K
C02C
50V
35V
680uF
C01C
+
104
MOTOR
INDOOR
FAN
H/S1 DC 5V
CN-MOTOR (WH)
C91C 103
4
8
1
3
2
- +
IC9-1
KA393
DC12V
R97C 10K
DC12V
R93C 10K
KA393
IC9-2
C07C
+
100uF
~
1 1
2 2
34 34
63V
R02A,20K
E3 1k
R11H~R16H
OR1H
F2
OR2H
F1
R21H R26H R25H R24H R23H R22H
5V
DC 5V
RXD OUT
12.1K
1%
R01A,1K
C13M 103
5V
5V
R01B,1M
E2 1k
C01A
25V 0.01
C02A
10UF
10V
3
CST-8.00MTW
103
OSC01B
6
4.7K R91C
R92C 10K
5
-
7
10K
R05H
1
IC01A
KIA7036P KSC7536
2
3.6V
5V
R02H
R04H
1%
6.2K
1%
12.1K
5V
R99C
11
33
4
4
2
2
C92C 1/4W
CN-DC/DC(BL)
104,50V
750
PIPE-TH
11 3 22
3
ROOM-TH
CN-TH1
44
R81 1K
R02L,1K
R02E,20
R01E
1K
PKM13EPP-4002
BZ01E
5V
3 3
STEPPING MOTOR
(LEFT/RIGHT)
BL
PK
YL
4
5
4
5
12V
CN-L/R 2(BL)
OR
RD
1 1
2 2
H/S 1
TXD OUT
RXD OUT
receiver
R01L
5.1K
C01L 680pF
50V
HVB (dc)
12V
HVB (dc) HVB OUT HVB out HVB con
(BL) CN-HVB
33
1 2
1 2
CN-12V
3 2 1
3 2 1
HVB OUT
11 33 22
CN-Con
R01N,100
C01N
0.01 25V
C03H
0.01 25V
25V 0.01
C02H
R03A,100
R02N
25V 0.01
C02N