Read LG 37LK450 (CHASSIS:LT01U) Service Manual online
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
C1604
47pF
50V
47pF
50V
EU_OPT
DTV/MNT_L_OUT
R1677
10K
10K
OPT
+3.5V_ST
R1675
2K
OPT
R1618
10K
10K
R1632
10K
10K
L1604
120-ohm
R4216
100
AV_CVBS_IN
R1635
390
390
EU_OPT
R1655
2.2K
2.2K
EU_OPT
R1623
15K
15K
EU_OPT
R1689
12K
REAR_AV
R1627
22
EU_OPT
R1607
470K
R1657
5.6K
5.6K
EU_OPT
R1636
12K
D1609
5.6V
OPT
R1665
33K
33K
EU_OPT
R1676
560
560
OPT
Q1611
2SC3052
2SC3052
OPT
E
B
C
DTV/MNT_R_OUT
REC_8
SC1/COMP1_R_IN
D1618
30V
OPT
C1665
0.01uF
C1608
220pF
50V
OPT
220pF
50V
OPT
JK1604
PPJ233-01
REAR_AV
4A
[YL]O-SPRING
5A
[YL]E-LUG
3A
[YL]CONTACT
4B
[WH]C-LUG
5C
[RD]E-LUG
4C
[RD]O-SPRING
3C
[RD]CONTACT
R1629
3.9K
3.9K
EU_OPT
R1605
75
R1658
5.6K
5.6K
EU_OPT
COMP2_Y+
D1615
30V
C1646
0.1uF
16V
0.1uF
16V
REAR_AV
R1680
1K
OPT
C1609
1000pF
50V
50V
EU_OPT
R1606
470K
SC1_R+/COMP1_Pr+
L1601
BLM18PG121SN1D
BLM18PG121SN1D
EU_OPT
Q1613
2SC3052
2SC3052
OPT
E
B
C
DTV/MNT_R_OUT
+3.3V_Normal
JK1603
PPJ234-01
REAR_COMP2
5A
[GN]O-SPRING
6A
[GN]E-LUG
4A
[GN]CONTACT
7B
[BL]E-LUG-S
5B
[BL]O-SPRING
7C
[RD]E-LUG-S
5C
[RD]O-SPRING_1
5D
[WH]O-SPRING
4E
[RD]CONTACT
5E
[RD]O-SPRING_2
6E
[RD]E-LUG
D1624
5.6V
5.6V
OPT
R1667
10K
10K
EU_OPT
R4218
22K
C1619
4700pF
4700pF
EU_OPT
C1663
330pF
50V
REAR_AV
R1613
10K
C1648
220pF
50V
220pF
50V
OPT
D1614
30V
L1606
EU_OPT
R4211
390
390
EU_OPT
R1620
75
R1621
75
R4217
22K
R4223 0
COMPONENT1
SC1_B+/COMP1_Pb+
SCART1_Rout
COMP2_R_IN
R1639
180
EU_OPT
SCART1_MUTE
R1608
75
75
C1636
0.1uF
0.1uF
EU_OPT
SC1_ID
R1617
10K
10K
R1662
470K
470K
OPT
R1609
75
75
EU_OPT
D1613
5.6V
OPT
JK1601
PPJ-230-01
COMPONENT1
9
[GN]G
10
[GN]GND
8
[GN]C_DET
7
[BL]B
6
[RD]R
5
[WH]L_IN
4
[RD]R_IN
11
FIX-TER
13
[RD]MONO
D1603
30V
OPT
R1652
10K
EU_OPT
L1602
BLM18PG121SN1D
BLM18PG121SN1D
EU_OPT
R1619
75
75
DTV/MNT_VOUT
C1607
0.1uF
16V
0.1uF
16V
L1609
120-ohm
REAR_AV
+3.3V_Normal
2SC3052
Q1608
EU_OPT
D1619
30V
REAR_AV
Q1602
2SC3052
2SC3052
EU_OPT
E
B
C
SC1/COMP1_L_IN
DTV/MNT_L_OUT
COMP2_Pr+
R1678
680
680
OPT
C1642
0.1uF
50V
0.1uF
50V
EU_OPT
SC1_G+/COMP1_Y+
R1615
1K
1K
+12V/+15V
D1608
5.6V
OPT
C1617
1000pF
50V
1000pF
50V
OPT
D1605
30V
C1645
10uF
16V
10uF
16V
EU_OPT
C1625
0.1uF
0.1uF
50V
EU_OPT
COMP2_DET
R1672
470K
REAR_AV
R1664
33K
33K
EU_OPT
C1618
4700pF
4700pF
EU_OPT
R1668
10K
EU_OPT
SC1/COMP1_DET
C1644
10uF
16V
10uF
16V
EU_OPT
R4221
0
EU_OPT
C1662
330pF
50V
330pF
50V
REAR_AV
AV_L_IN
D1607
5.6V
OPT
C1612
330pF
50V
DTV/MNT_L_OUT
D1601
5.6V
OPT
COMP2_Pb+
D1716
30V
OPT
D1602
30V
OPT
+12V/+15V
C1621
47uF
16V
47uF
16V
EU_OPT
0
R4210
EU_OPT
C1620
100uF
16V
100uF
16V
EU_OPT
DTV/MNT_R_OUT
SC_RE1
R1685
10K
10K
REAR_AV
AV_CVBS_DET
REC_8
R1626
470K
C1664
0.01uF
2SC3052
Q1607
EU_OPT
Q1601
ISA1530AC1
EU_OPT
E
B
C
JK1602
PSC008-01
EU_OPT
1
AUDIO_R_OUT
2
AUDIO_R_IN
3
AUDIO_L_OUT
4
AUDIO_GND
5
B_GND
6
AUDIO_L_IN
7
B_OUT
8
ID
9
G_GND
10
D2B_IN
11
G_OUT
12
D2B_OUT
13
R_GND
14
RGB_GND
15
R_OUT
16
RGB_IO
17
SYNC_GND1
18
SYNC_GND2
19
SYNC_OUT
20
SYNC_IN
21
COM_GND
22
AV_DET
C1616
1000pF
50V
1000pF
50V
OPT
L1610
120-ohm
REAR_AV
R4219
100
R1641
47K
47K
EU_OPT
SCART1_Lout
D1610
30V
OPT
R1625
470K
470K
R1666
1K
REAR_AV
L1603
120-ohm
D1606
30V
5.6V
OPT
D1617
R1604
75
R1630
12K
12K
R1616
75
75
EU_OPT
SC1_CVBS_IN
C1655
33pF
EU_OPT
D1616
5.6V
OPT
C1610
1000pF
50V
EU_OPT
C1623
0.1uF
0.1uF
50V
EU_OPT
R1612
10K
SC1_SOG_IN
R1631
12K
12K
R1634
12K
Q1615
2SC3052
2SC3052
OPT
E
B
C
R1656
2.2K
2.2K
EU_OPT
R1684
10K
10K
REAR_AV
R1695
12K
12K
OPT
+3.3V_Normal
R4207
51K
51K
OPT
R1681
1K
OPT
C1654
33pF
EU_OPT
R1628
75
75
EU_OPT
SC_RE2
R1640
470
EU_OPT
R1614
1K
D1626
5.6V
REAR_AV
R1660
10K
10K
REAR_AV
C1611
330pF
50V
330pF
50V
R1642
15K
15K
EU_OPT
R1648
2K
2K
EU_OPT
AV_R_IN
+12V/+15V
R1654
75
75
REAR_AV
R1661
470K
470K
OPT
R1671
470K
REAR_AV
D1611
5.6V
OPT
COMP2_L_IN
R1633
10K
10K
R1687
10K
10K
OPT
D1612
30V
D1625
5.6V
REAR_AV
C1643
47pF
50V
47pF
50V
REAR_AV
Q1610
RT1P141C-T112
EU_OPT
1
2
3
D1604
30V
R1688
12K
12K
REAR_AV
R1650
2K
EU_OPT
SC1_FB
ET_RXD1
/RST-PHY
ET_CRS
ET_TX_EN
ET_TXD1
ET_MDIO
ET_RXER
ET_REF_CLK
ET_RXD0
ET_MDC
ET_TXD0
TP1610
TP1611
TP1612
TP1613
TP1614
TP1615
TP1616
TP1617
TP1618
TP1619
TP1620
IC1601-*1
SN324
EU_OPT_AUK
3
NON_INV_IN1
2
INV_IN1
4
VCC
1
OUT1
6
INV_IN2
5
NON_INV_IN2
7
OUT2
8
OUT3
9
INV_IN3
10
NON_INV_IN3
11
GND
12
NON_INV_IN4
13
INV_IN4
14
OUT4
IC1601
AS324MTR-E1
EU_OPT_BCD
3
IN1+
2
IN1-
4
VCC
1
OUT1
6
IN2-
5
IN2+
7
OUT2
8
OUT3
9
IN3-
10
IN3+
11
GND
12
IN4+
13
IN4-
14
OUT4
IN CASE OF SMALL= 15V
[SCART AUDIO MUTE]
CLOSE TO MSTAR
L-MONO
COMPONENT2
[SCART PIN 8]
Rg
Rf
Rear AV
Gain=1+Rf/Rg
Full Scart/ Comp1
IN CASE OF SMALL= 15V
ETHERNET FOR DVB_T2
REAR_JACK
20101023
17
GP2R
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