LG LMU240HE Service Manual - Page 55

Art Cool Type - pcb

Get LG LMU240HE PDF manuals and user guides View all LG LMU240HE manuals
Add to My Manuals
Save this manual to your list of manuals

Page 55 highlights

Service Manual 55 Schematic Diagram STEPPING MOTOR SUB PCB ASM STEPPING MOTOR STEPPING MOTOR LED2 SLEEP LED3 TIMER LED4 DEFROST LED1 ON/OFF 4(f) a 11 3(a) 22 b f 1(g) 33 g 9(b) 4 4 6(d) c e 55 7(e) 66 8(c) d 77 10 5 Digit2 Digit1 88 99 10 10 DC 5V GND TEST KEY 11 11 12 12 13 13 Vout Vcc RECEIVER DISPLAY C04L 0.01 25V 14 14 CN-MAIN 1 2 1 2 RD OR YL PK BL RD OR YL PK BL CN-D5 55 44 33 22 11 55 44 33 22 11 CN-D6 CN-D3 11 22 33 44 55 66 77 88 99 10 10 11 11 12 12 13 13 14 14 CN-CON(WH) 11 22 33 CN-12V(WH) 11 22 33 11 22 33 44 55 66 77 88 99 CN-D2 11 22 33 44 55 66 77 88 99 10 10 CN-D1 10 10 11 11 12 12 13 13 L3 C03L 220 10V C06D 103 DC5V IC02D O I 7805 + C05D 470uF 25V BL PK YL OR RD 543 2 1 CN-UD(BL) 5 4 3 2 1 12V 8 8 9 12V IC02M KID65004AF 10 7 CN-D1(WH) 11 12V 22 33 44 55 66 77 88 99 CN-D2(WH) 11 22 33 44 55 66 77 88 99 10 10 receiver 11 6 12 5 13 4 14 3 15 2 HVB 16 1 R01G 220 R02G 220 R03G 220 R04G 220 R05G 220 R06G 220 R07G 220 5V Q02C Q03C Q01C IC01M 9 5V KID65004AF 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 10 7 f1 48 11 12 13 14 15 16 5V 6 a2 5 g 3 4 b4 3 d5 2 e6 1 c7 digit 1 8 C02M 9 VssO 103 10 Vdd0 digit 2 11 0IMCRNE002M uPD780023AGC 47 46 45 INT1 44 INTO 43 Vss1 42 X1 41 X2 40 39 38 LED scan 12 37 13 RESET 36 14 AVdd 35 AVss AVdd1 15 AVret 34 FG 16 33 17 18 1920 21 22 23 24 25 26 27 28 29 30 31.32 5V C02L 220 10V R12H 10K R11H 1K C13H 103 50V 5V C03M 103 8 1S 7 2C 6 3D 5 4Q 5V C01M 103 R02E 20 BZ01E R01E 1K PKM13EPP-4002 RXD TXD IC03M KID65004AF 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 R01B 1M 5V OSC01B CST-8.00MTW R01L 5.1K 5V R02L 1K C01L 680pF 50V receiver 5V R21H R22H R23H R24H R25H R26H 5V R21H~R26H 12.1K 1% C01A 0.01 25V R02A 20K 1 3 3.6V 2 5V IC01A KIA7036P KSC7536 CN-LR1(WH) 11 24 33 44 55 12V 11 22 33 44 55 CN-LR2(WH) CN-HVB(BL) 33 HVB PIN2 22 HVB PIN1 11 CN-D1(WH) 10 10 11 11 12 12 13 13 HVB PIN1 HVB HVB PIN2 12V EE PR OM R28H 20K 5V R27H 20K OJ02H OJ01H TXD R95 10K FG1 FG2 R81 1K C81 103 R81A 1K C81A 103 DC 5V RXD C91 R90 1K 103 OR6H OR5H OR4H OR3H OR2H OR1H S-Hi Hi Med Low F2 F1 R92 10K R91 4.7K 6 7 + -5 IC9-2 R93 10K KA393 DC12V R99 750 1/4W E2 1K E3 1K R04H 6.2K 1% 5V R02H 12.1K 1% R05H 10K CN-TH1(WH) 44 33 22 11 DC 5V DC12V C92 104,50V 11 22 44 33 DC12V IC01D O I 7812 R96 10K 3 + 8 1 2- 4 IC9-1 R97 KA393 10K C04D 104 50V + C03D 470uF 25V C02D 104 50V + C01D 2200uF 35V DC12V 33 ~ POLY SW1 RXE250 POLY SW2 ~ RXE250 44 CN-DC/DC(BL) FG1 FG2 + C07D 4 32 1 4 32 1 100uF 63V 4 32 1 4 32 1 22 11 OUTDOOR INDOOR FAN MOTOR1 CN-MOTOR1(WH) INDOOR FAN MOTOR2 CN-MOTOR2(WH) BL PK YL OR RD BL PK YL OR RD STEP MOTOR L / R 1 STEP MOTOR L / R 2 HVB ASSY ROOM-TH PIPE-TH 2) Art Cool Type

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
Service Manual
55
Schematic Diagram
2) Art Cool Type
OUTDOOR
64
17
Digit2
10
LED2
LED4
LED3
LED1
DEFROST
ON/OFF
TIMER
SLEEP
6(d)
Digit1
c
5
d
e
8(c)
7(e)
b
g
f
a
9(b)
1(g)
3(a)
4(f)
4
12
16
15
14
13
8
10
11
9
6
7
5
2
3
1
45
27
22
20
19
18
21
25
24
23
26
37
32
30
29
28
31.
33
34
35
36
41
39
38
40
43
42
44
54
59
61
62
63
60
56
57
58
55
49
52
51
53
50
47
46
48
HVB ASSY
2
3
1
2
3
1
CN-HVB(BL)
2
1
1
2
Vdd0
VssO
R28H 20K
R27H 20K
DISPLAY
4
4
STEPPING MOTOR
STEPPING MOTOR
KEY
TEST
Vcc
RECEIVER
Vout
GND
DC 5V
25V
0.01
C04L
CN-MAIN
14
8
8
10
13
9
10
9
7
6
5
7
6
5
14
8
8
10
10
9
9
13
6
6
7
7
5
5
CN-D5
1
1
4
3
2
4
3
2
1
1
CN-D6
1
1
3
3
2
2
4
4
CN-D3
5
5
RD
YL
BL
PK
OR
4
4
3
3
2
2
BL
PK
YL
3
3
2
2
1
1
OR
RD
5
5
receiver
10
4
9
6
5
3
2
1
CN-D2
CN-D2(WH)
8
9
7
5
6
4
3
C02L
10V
220
5V
R12H
10K
50V
C13H
103
R11H
1K
Q
4
5
5V
1
2
3
8
7
6
D
C
S
Q02C
Q03C
R05G 220
R06G 220
R07G 220
5V
Q01C
LED scan
15
16
14
2
1
3
digit 1
digit 2
e
c
d
CN-D1
CN-D1(WH)
2
1
5V
R02G 220
R03G 220
R04G 220
R01G 220
IC01M
KID65004AF
12
11
13
10
5
6
4
7
9
8
a
g
b
f
KID65004AF
IC02M
12V
680pF
50V
R01L
C01L
5.1K
F2
OJ02H
5V
OR2H
OR3H
OR6H
OR5H
OR4H
Med
S-Hi
Hi
Low
AVss
AVdd1
AVret
AVdd
RESET
X1
X2
INTO
Vss1
INT1
R23H
OR1H
F1
R25H
R24H
R26H
R21H~R26H
12.1K 1%
R22H
R21H
5V
5V
CST-8.00MTW
OSC01B
uPD780023AGC
0IMCRNE002M
CN-UD(BL)
1
2
3
4
5
R01E
1K
12V
R02E 20
PKM13EPP-4002
BZ01E
PIPE-TH
ROOM-TH
STEP MOTOR
6.2K
12.1K
R05H
10K
1%
1%
2
2
1
1
R02H
R04H
5V
5V
receiver
CN-TH1(WH)
3
4
3
4
CN-LR2(WH)
L / R 2
STEP MOTOR
RD
12V
RD
YL
OR
PK
1
BL
CN-LR1(WH)
BL
3
4
4
5
OR
PKYL
L / R 1
STEPPING MOTOR
RD
PK
BL
YL
OR
SUB PCB ASM
5V
HVB
7
8
12
11
11
11
12
5V
10
9
8
7
6
5
4
3
2
1
8
9
10
1
2
3
4
5
6
7
7
6
5
4
3
2
10
9
8
1
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
9
HVB PIN1
10
11
12
13
13
12
11
10
5
4
2
1
3
5
4
2
1
3
3
1
2
4
5
5
1
2
4
3
14
13
12
14
13
12
11
E3 1K
E2 1K
C02M
103
C01M
103
C03M
103
CN-D1(WH)
CN-CON(WH)
CN-12V(WH)
10
11
12
13
10
11
13
12
3
3
2
2
1
1
2
2
3
3
1
1
2
2
2
3
3
3
3
1
1
1
1
OJ01H
0.01
25V
C01A
R02A 20K
5V
1
KSC7536
KIA7036P
3
3.6V
2
IC01A
R02L
1K
R01B
1M
HVB PIN2
HVB PIN1
HVB
HVB PIN2
12V
5V
DC5V
103
C06D
C01D
35V
2200uF
DC12V
+
IC02D
7805
C05D
25V
470uF
+
O
C04D
104
50V
I
I
C03D
25V
470uF
O
7812
IC01D
104
C02D
50V
+
+
-
R97
10K
R96
10K
DC 5V
3
2
4
IC9-1
KA393
DC12V
8
1
R95
10K
63V
100uF
C07D
CN-MOTOR1(WH)
MOTOR1
INDOOR
FAN
3
4
3
4
1
1
2
2
+
104,50V
CN-DC/DC(BL)
POLY SW1
RXE250
~
3
2
4
3
2
4
1/4W
C92
1
1
DC 5V
R90 1K
C91
103
5
IC9-2
KA393
-
R92 10K
4.7K
R91
7
+
6
R93 10K
2
3
1
4
DC12V
2
3
1
R99
750
4
C03L
L3
10V
220
RXD
TXD
TXD
RXD
FG
C81
103
R81 1K
FG1
FG1
2
15
16
1
7
10
13
11
12
14
4
6
5
3
9
8
13
14
3
15
16
2
1
KID65004AF
IC03M
10
11
6
12
5
4
9
8
7
12V
4
2
3
FAN
INDOOR
MOTOR2
1
4
2
3
1
RXE250
~
POLY SW2
FG2
DC12V
CN-MOTOR2(WH)
R81A 1K
FG2
C81A
103