Read LG 42LD320H (CHASSIS:LB0AW) 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.
R1634
12K
DTV/MNT_L_OUT
C1625
0.1uF
0.1uF
50V
COMP2_Pr+
+3.3V_Normal
R1625
470K
470K
R1640
470
D1605
30V
R1609
75
75
R1621
75
COMP2_Y+
R1627
22
D1611
5.6V
OPT
C1620
100uF
16V
100uF
16V
R1622
0
0
C1603
10pF
10pF
OPT
D1618
30V
OPT
DTV/MNT_VOUT
L1601
BLM18PG121SN1D
BLM18PG121SN1D
COMP2_L_IN
SCART1_MUTE
D1606
30V
D1602
30V
OPT
C1613
10pF
50V
10pF
50V
OPT
R1620
75
C1604
47pF
50V
47pF
50V
C1618
4700pF
4700pF
D1612
30V
DTV/MNT_L_OUT
R1638
0
0
COMP2_Pb-
Q1601
ISA1530AC1
E
B
C
R1628
75
75
R1648
2K
2K
+12V/+15V
R1618
10K
10K
D1616
5.6V
L1602
BLM18PG121SN1D
BLM18PG121SN1D
SC1_G-/COMP1_Y-
C1621
47uF
16V
47uF
16V
R1637
0
0
SC1/COMP1_DET
R1619
75
75
D1610
30V
OPT
DTV/MNT_R_OUT
DTV/MNT_R_OUT
R1631
12K
12K
R1645
0
R1639
180
D1601
5.6V
OPT
D1607
5.6V
OPT
R1632
10K
10K
D1603
30V
OPT
SC1_CVBS_IN
L1603
120-ohm
+3.3V_Normal
C1642
0.1uF
50V
0.1uF
50V
2SC3052
Q1608
R1636
12K
C1611
330pF
50V
330pF
50V
R1641
47K
47K
C1614
10pF
50V
OPT
SC1_ID
C1615
10pF
50V
OPT
D1613
5.6V
SC1_B+/COMP1_Pb+
L1606
SC1_R+/COMP1_Pr+
COMP2_Pr-
2SC3052
Q1607
R1633
10K
10K
COMP2_R_IN
C1602
10pF
10pF
OPT
R1642
15K
15K
Q1602
2SC3052
2SC3052
E
B
C
R1616
75
75
C1612
330pF
50V
R1617
10K
10K
R1607
470K
R1601
0
SC1/COMP1_L_IN
R1614
1K
R1605
75
C1606
OPT
R1608
75
75
C1623
0.1uF
0.1uF
50V
R1650
2K
D1615
30V
C1610
1000pF
50V
COMP2_Y-
SC1_FB
SC1/COMP1_R_IN
C1601
10pF
10pF
OPT
R1604
75
0
R1611
C1607
0.1uF
16V
0.1uF
16V
C1616
1000pF
50V
1000pF
50V
D1608
5.6V
OPT
5.6V
D1617
SC1_G+/COMP1_Y+
SC1_R-/COMP1_Pr-
R1630
12K
12K
D1614
30V
COMP2_DET
R1652
10K
C1608
220pF
50V
OPT
220pF
50V
OPT
C1636
0.1uF
0.1uF
L1604
120-ohm
R1615
1K
1K
C1609
1000pF
50V
50V
C1619
4700pF
4700pF
+12V/+15V
R1624
0
0
D1609
5.6V
OPT
C1617
1000pF
50V
1000pF
50V
COMP2_Pb+
SC1_B-/COMP1_Pb-
+3.5V_ST
Q1610
RT1P141C-T112
1
2
3
C1605
OPT
D1604
30V
R1626
470K
R1606
470K
R1602
0
R1613
10K
R1612
10K
R1623
15K
15K
R1629
3.9K
3.9K
SC1_SOG_IN
0
R4210
IC1601
LM324D
LM324D
3
IN1+
2
IN1-
4
VCC
1
OUT1
6
IN2-
5
IN2+
7
OUT2
8
OUT3
9
IN3-
10
IN3+
11
VEE/GND
12
IN4+
13
IN4-
14
OUT4
SCART1_Rout
R1658
5.6K
5.6K
R1657
5.6K
5.6K
SCART1_Lout
R1667
10K
10K
R1656
2.2K
2.2K
C1654
33pF
R1662
470K
470K
OPT
R1664
33K
33K
C1644
10uF
16V
10uF
16V
R1665
33K
33K
R1661
470K
470K
OPT
R1655
2.2K
2.2K
C1645
10uF
16V
10uF
16V
C1655
33pF
R1668
10K
R1635
390
390
R4211
390
390
R4213 0
R4214 0
R4215
0
C1665
0.01uF
R4216
100
R4217
22K
R4219
100
C1664
0.01uF
R4218
22K
R4221
0
R4224
0
DTV/MNT_R_OUT
DTV/MNT_L_OUT
R1603
0
JK1605
1
R_OUT
2
R_IN
3
L_OUT
4
GND
5
GND
6
LIN
7
B
8
SC_ID
9
.
10
.
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
23
23
22
22
JK1603
PPJ229-01
4A
[GN]CONTACT
2A
[GN]1P_CAN
3A
[GN]O_SPRING
2B
[BL]1P_CAN
5B
[BL]C_LUG_L
2C
[RD]1P_CAN1
5C
[RD]C_LUG_L
2D
[WH]1P_CAN
5D
[WH]C_LUG_L
2E
[RD]1P_CAN2
4E
[RD]CONTACT
3E
[RD]O_SPRING
R1681
10K
R1673
5.6K
C1666
33pF
R1679
10K
EXT_L_AMP
C1669
10uF
16V
R1669
100
OPT
R1676
33K
R1680
470K
OPT
EXT_L_AMP_IN
C1667
33pF
R1674
2.2K
EXT_R_AMP_IN
R1671
100
R1677
100
OPT
R1672
470K
OPT
R1670
33K
R1675
2.2K
EXT_R_AMP
C1668
10uF
16V
R1682
5.6K
R1678
100
SCART/RCA
Rf
STATUS
China : Using
NAME
AV_OPT
Full Scart/ Comp1
CHINA_OPT
China : Using
COMPONENT2
EU :Using
EU_OPT
Rg
OPTION TABLE
For EU
EU : Not Using
EU : Not Using
China:NotUsing
Gain=1+Rf/Rg
[SCART AUDIO MUTE]
CLOSE TO MSTAR
Ver. 1.1
18
IN CASE OF SMALL= 15V
FOR ESD & EMI
FOR ESD & EMI
FOR ESD & EMI
EAX62115501
[SCART/EXT AUDIO 1st AMP]
CLOSE TO MSTAR
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