LG T2UC182FAA, Service Manual

Page: 17 / 51

Service Manual
Schematic Diagram
Schematic Diagram
Indoor Unit
42
28
15 16
22
20
19
18
17
21
26
25
23
24
27
11 12 13 14
9 8
10
34 33
32
29
30
31
38 37 36 35
41 40 39
53
55
56
58
57
54
61
63
62
64
60
59
5
4
7 6 1 3 2
49
51
52
50
44 45
43
48 46 47
FAN 12V 4WAY COMP
OUTDOOR FAN L(AC) COMP 4WAY LOAD
2. The unit of undefined capacitors is uF. 1. The unit of undefined resistance is ohm, 1/8W, 5%. NOTE
Direct type
12
3
PCB outside
12
Angle type
CN-MOTOR
3
2
1
CN-4WAY
SH-CAPACITOR
22
680
33
CN-12V
2 1
1
2
2 1
12V
AC PART
3
TLP421(V4 BL)
IC01L
VOLTAGE GND DC LOW
INT
4
1N4148
VOLTAGE GND 2 DC HIGH
300K 1/2W
NF01J
40mH/1A
1IN4007
1N4007
D05J
R03L
300K 1/2W
27k 1/6W
D01L
1
R02L
R01L
1N4007
5V
1N4007 D03J
C02J
100nF/275V/436D METAL FILM
D02J 1N4007
D01J
D04J
12V
INDOOR FAN
R01F 560 1/4W
100,1/2W
250V/T2A
100nF/275V/436D C01J METAL FILM
ZNR01J TVR10561
FUSE
RY- FAN RY-4 WAY
3
4
3
4
TLP762JF
SM1L43
T1
R03F
1/2W
5
1
2
4
IC01F
3
TR01F TRAICS
T2
METAL FILM 100nF/275V/436D C01F
TVR10561
120, 1/2W R04F
ZNR01F
COMPRESSOR
1
1
CN-N1
RY-COMP G4A-1A-E-LG
3
N
50/60Hz
AC220~240V L
MOTOR
4
1
1
3
3
1
1
2
2
3 1 2
3 1
2(N) 1(L)
2
TERMINAL
5 4
5
FAN MOTOR OUTDOOR
4-WAY
4
11
2
4
3
5
Vout
GND Vcc
RECEIVER
DISPLAY
C
C
AB
B
KTC3198-Y
1
1
11
20K
(2012) R01P
10V
2
2
HVB
33 1
CN-HVB
1
Option
HVB OUT
6
3
A0 A1
M24C01-MN6T SGS-THOMSON 8PIN SOP TRAY EEPROM IIC EEPROM
4
SCL
SDA
5
G A2
1 2
8
Vcc
7
WP
receiver
5
5
55
C13L
SW(FORCE)
104
2
2
11
2
2
1
1
44 3
3
4
4
3
3
R01G~R04G
1
220 1/8W
7
7
6
6
7
7
6
6
8
8
8
8
CN-DISP1
KRA107S Q02G KRA107S Q03G
220uF SD
Force
+
C12L
5V
Q01G KRA107S
5V
KID65004AF
9
IC01G
5V
5V
20K R02P (2012)
OR4H
OR6H
OR5H
Hi
Med
Low
OR3H
OR1H
OR2H
O/L
F
2
F
1
R26H R21H
5V
d
5V
s
1
s V
d
Force
20K R15L
5V
C08D,AXIAL
103,50V
A
V A
Vss0 Vdd0
AVref
R24H R23H R25H
12.1K, 1%
R21H~R26H
R22H
5V
RESET AVdd
C07D,AXIAL 103,50V
X2 X1
CRTL8.00MSOT CSTS0800MG03-T2
R01B 1M
OSC01B
2SC5343
R03G
OUTDOOR OPERATION LED2 SLEEP LED1
A
TIMER LED3
R02G R01G
3
3
2
2
3
3
2
2
6
6
44 55
6
6
5
5
4
4
LED4
R04G
77
7
7
11
6
16 15 14
1 2 3
13 12
4 5
12V
10
7
KID65004AF
IC01M
BL OR
4 5
RD
4 5
2 1 3
PK YL
2 1 3
STEPPING MOTOR
(UP/DOWN)
HVB OUT
15
2
8
16
9
1
13 14
3 4
INDOOR FAN
COMP
10 11 12
5 6 7
UPD780023AGC-C NEC
INT1 Vss1 INT0
B Z
Q01L
R11L,1/6W
FAN 12
4
1
2
3
16
15
14
13
2
4
3
5
4WAY
KID65004AF
8
7
5
6
9
10
11
IC02M
1
CN-L/R
DC PART
STEPPING MOTOR
(LEFT/RIGHT)
Option
1
INT
RELAY CONNECTION
CN-TH1
10K R05H
R02H 12.1K
1%
R04H 6.2K
1%
5V
PIPE-TH
R02F
11 44 22 33
ROOM-TH
50V
5V
3
10uF C02A
IC01A
1
3.6V
S7136
2
KIA7036P
R05L 56K
R02A,4.7K
CN-MOTOR
33
FAN INDOOR MOTOR
3 4
R12L 5.1K
receiver
680pF,50V
12K R04L,1/6W
5V
C11L ,AXIAL
5V
PKM13EPY-4002
R02E,20
R01E 1K
BZ01E
IC01J
DMR40 EE1916S Lp=4.50mH,+-8%,40Khz
158T
VOLTAGE GND DC LOW
+
5V
C04D
C05D 10V SD
104,AXAIL 50V
220
S78L05L 1W
I
IC01D O
7805
D01D UF4004
ZBF503D-TA-K TDK TP 12uH L01D,IMD
1/6W
104,AXIAL C03D
R01D 4.7K
50V
100uF C02D
25V
12V
28T
220UF C01D
25V
SMPS
450V/SD
1N4937
DC HIGH VOLTAGE GND
100,1/6W R02J
50V
C05J 0.1uF 100V
RO1J 1/4W,1% 27K DO6J
1uF C04J
LNK500P
S
D
C
+
10uF C03J
NTC SCK-102
CI-B2012-100KJT R/TP 100nH
L02D
2 5 4
5 4
3 1
3 1 2
12V 5V GND
R14L 1K
C01P,AXIAL,103,50V
X RT
X
DD
R01A,1K
R03A,100
AXIAL C01A 103
222,400V C06J,AXIAL
+
1 2
1 2
33
12V
CN-P/O
+
R01H,1/6W,10K R03H,1/6W,10K
C14L
C02H
C01H
R13L
100 1/4W
12V
BL
PK
YL
OR
RD
8
PLASMA
CHIP
RXD TXD
C03T CHIP
R06H,1/6W,10K
C03H
2 3 1
2 3 1
CN-TH2
6.2K R07H
1%
5V
11
3
3 22 77
6
6
5
5 44
CN-OPTION
GND
OR1H (PIN 33) OR2H (PIN 32) OR3H (PIN 31) OR4H (PIN 30) OR5H (PIN 29) OR6H (PIN 28)
C01L AXIAL
3
3
CN-RF
5V
1
1
2
2
CHIP(104) or 10K ohm resistor C01T
R01T,1K,AXIAL
CHIP(681) C02T
1 3
8 6
Metal film
+
LINK SWICH
CN-4WAY
CN-N2
CN-LIVE
WIRE-N
R02D
C06D,AXIAL
4.7K,1/6W
102,400V
WIRE-N
3 4
CN-LIVE
PTC-HEATER
RF
Transmitter
on artworking,Eyelet pattern
10M,1W,5% noise character increasing thing
R03J
103
103
103
YW396-03AV(WH)
YW396-03AV(YL)
103
1K
102 or 10K ohm resistor
AXIAL
AXIAL
50V
50V
AXIAL 50V
50V
103 50V
CN-DISP2 CN-U/D
CN-CENT
SMD
BARE PCB:6870A90238A ASM PCB:6871A20572
DISPLAY BARE PCB : 6870A90240A DISPLAY ASM PCB : 6871A20574A
If CN-CENT don't use,this use resistor 10K(2012).
OR1H OR2H OR3H OR4H OR5H OR6H
PCB ASM : 6871A20577
If CN-RF don't use,this use resistor 10K(2012).
2UEW0.14
TIW0.25
Option : only This is applied the H/P SRAC.
P/no:6200JB8010P WRAC APPLIED
OPTION : noise character increasing thing
OPTION : noise character increasing thing
PWB:6870A90243A
10K
47K 47K
10K
47K
10K
Only no low temporature detection function.
10K+-5% 5K+-5%
15pF 15pF
GLASS TYPE
R11H R12H
5V
0J1H
0J2H
5V
OPTION : import or export operation option
R11H~R12H
20K,2012
1-4 79T 4-3 79T
R04D 0 ohm
0 ohm R03D
C09D open
C10D open
Anti Surge Res.
Anti Surge Res.
Anti Surge Res.
17