LG 42LD420 Service Manual page 36

For EU & CHINA
Full Scart/ Comp1
EU_OPT
R4220 AV_DET
FIX-TER 0
22
COM_GND
[GN]GND
11
21
10
SYNC_IN
[GN]G
20
SYNC_OUT
9
19
[GN]C_DET
SYNC_GND2
8 18
SYNC_GND1
[BL]B
17
7
RGB_IO
[RD]R
16
R_OUT
6
15
[WH]L_IN
RGB_GND
5 14
[RD]R_IN R_GND
13
R4221
4
D2B_OUT 0
[RD]MONO EU_OPT
12
G_OUT
13
11
D2B_IN
PPJ-230-01 EU_OPT
10 R4224
JK1601 0
G_GND
9
ID
8
B_OUT
7
AUDIO_L_IN
6
B_GND
5
AUDIO_GND
4
AUDIO_L_OUT
3
AUDIO_R_IN
2
AUDIO_R_OUT
1
PSC008-01
JK1602
OPTION TABLE
NAME
STATUS
EU : Not Using
AV_OPT
China : Using
EU : Not Using
CHINA_OPT
China : Using
EU_OPT EU :Using
China:NotUsing
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.
Copyright © 2010 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
+3.3V_Normal
R1613
10K
SC1/COMP1_DET
R1614
1K
D1611
C1607
5.6V 0.1uF
OPT 16V
EU_OPT
R4210
0
SC1_SOG_IN EU_OPT E
ISA1530AC1
EU_OPT
R1611 Q1601
0
SC1_CVBS_IN
EU_OPT EU_OPT C1608
R1609 C1604
220pF
47pF
75 50V
50V
OPT
D1602
30V
OPT
EU_OPT
EU_OPT
D1610
R1628
C1620
D1603 30V 75
100uF
30V OPT
16V
OPT
EU_OPT
R1627
EU_OPT
SC1_R+/COMP1_Pr+
R1616 22
D1604
OPT
R1608 75
30V C1602
75
10pF
SC1_R-/COMP1_Pr-
R1601
0
EU_OPT
SC1_G+/COMP1_Y+
30V
D1605 OPT
C1603
30V R1604
D1716
R1602 10pF EU_OPT
75
0 R1669
SC1_G-/COMP1_Y- 0
OPT
EU_OPT
D1618 EU_OPT
R1623
SC1_B+/COMP1_Pb+
30V
15K R1629
OPT
D1606 3.9K
C1601
R1605
30V
10pF
75
SC1_B-/COMP1_Pb-
R1603 R1617
0
10K
L1604
D1607 R1606 C1611
OPT 120-ohm R1630
5.6V 470K 330pF 12K
C1606
OPT 50V
R1618
10K
L1603
D1609
120-ohm
C1612
5.6V R1631
OPT
OPT R1607 330pF 12K
C1605
470K 50V
EU_OPT
D1608 EU_OPT EU_OPT EU_OPT
L1601 C1609 R1622
5.6V C1618
BLM18PG121SN1D 0
OPT 1000pF 4700pF
50V
EU_OPT
EU_OPT EU_OPT
D1601 EU_OPT
R1624
L1602 C1619
5.6V
BLM18PG121SN1D 0
C1610
4700pF
OPT
1000pF
50V
COMPONENT2
+3.3V_Normal
R1612
10K R1615
1K
D1613
5.6V
FOR ESD & EMI
R4215 0
[GN]E-LUG
OPT
R1619
C1613
6A 75
10pF
[GN]O-SPRING
50V
D1612
5A
30V
[GN]CONTACT
FOR ESD & EMI
4A
[BL]E-LUG-S 50V
D1614 30V
10pF
7B R4214 0 75
C1614
[BL]O-SPRING R1620 OPT
FOR ESD & EMI
5B
[RD]E-LUG-S 50V
10pF
7C
R4213 0 75 C1615
[RD]O-SPRING_1 R1621 OPT
D1615
5C
30V
[WH]O-SPRING
5D
[RD]CONTACT
C1616
4E D1616 R1625
5.6V 1000pF
[RD]O-SPRING_2 470K
50V
5E
[RD]E-LUG
6E
PPJ234-01
C1617
JK1603 D1617
5.6V R1626 1000pF
470K
50V
IN CASE OF SMALL= 15V
+12V/+15V
EU_OPT
L1606
EU_OPT
EU_OPT
EU_OPT
C1625
R1640 C1623
0.1uF
470 0.1uF
50V 50V
B
EU_OPT
C EU_OPT
Q1602
EU_OPT R1641
2SC3052 47K
C EU_OPT
R4211
C1621
390
B 47uF
16V
DTV/MNT_VOUT
E
EU_OPT EU_OPT
R1635 R1645
390 0
EU_OPT
Rf
EU_OPT R1642
Rg
R1639 15K
180
Gain=1+Rf/Rg
SC1_FB
REC_8
SC1_ID
SC1/COMP1_L_IN
SC1/COMP1_R_IN
DTV/MNT_L_OUT
+12V/+15V
SCART1_Lout
DTV/MNT_R_OUT
C1642
0.1uF
50V SCART1_Rout
R4212 0
AUDIO_R
HOTEL_OPT
EU_OPT/CHINA_HOTEL_OPT
COMP2_DET
COMP2_Y-
COMP2_Y+
[SCART AUDIO MUTE]
COMP2_Pb-
COMP2_Pb+
COMP2_Pr-
COMP2_Pr+
R1633 R1637 DTV/MNT_L_OUT
10K 0
EU_OPT
COMP2_L_IN
Q1607
R1636 2SC3052 EU_OPT
12K
R1648
2K
R1632 R1638
10K 0 DTV/MNT_R_OUT
COMP2_R_IN
EU_OPT
Q1608
R1634
EU_OPT
2SC3052
12K
R1650
2K
Composite
D1619
R1654
30V
75
JK1604
PPJ233-01
[RD]E-LUG
5C
[RD]O-SPRING
4C
[RD]CONTACT
3C
[WH]C-LUG
4B
[YL]CONTACT
3A
D1625
[YL]O-SPRING 5.6V
4A
[YL]E-LUG
5A
D1626
5.6V
EU_OPT
CLOSE TO MSTAR
R1656
2.2K
DTV/MNT_L_OUT
EU_OPT
EU_OPT
R1664
C1644
OPT 33K
10uF
R1662
16V
C1664
470K
R4218
0.01uF
22K
EU_OPT EU_OPT
R1657 C1654
33pF
5.6K
R4219 100
EU_OPT/CHINA_HOTEL_OPT
R1658
5.6K
R4216 100
EU_OPT/CHINA_HOTEL_OPT
R1665
C1665
R4217 33K
0.01uF 22K
R1668
10K
EU_OPT/CHINA_HOTEL_OPT
C1655
R1655
33pF
2.2K
DTV/MNT_R_OUT
EU_OPT/CHINA_HOTEL_OPT
EU_OPT/CHINA_HOTEL_OPT
OPT
C1645
R1661
10uF
470K
16V
EU_OPT/CHINA_HOTEL_OPT
[SCART PIN 8]
+3.5V_ST
OPT
R1652
SC_RE1
10K
EU_OPT
RT1P141C-T112
Q1610
SCART1_MUTE
3 1
EU_OPT SC_RE2
C1636
2
0.1uF
GP2_Saturn7M
AV_CVBS_IN
R1659
0
C1643 C1648
47pF 220pF
50V 50V
+3.3V_Normal
OPT
R1660
10K
AV_CVBS_DET
R1666
1K
D1624
C1646
5.6V
0.1uF
16V
R1685
10K
AV_R_IN
L1609
C1659 C1663
120-ohm
R1671
330pF
OPT
470K
50V
OPT
L1610
R1684
120-ohm
10K
AV_L_IN
C1662
R1672
C1658
330pF
470K OPT 50V
OPT
IC1601
LM324D
EU_OPT/CHINA_HOTEL_OPT
1 14
1 14
2 13
2 13
EU_OPT
R1667
3 12
10K
3 12
4 11
4 11
5 10
5 10
6 9
6 9
7 8
7 8
+12V/+15V
IN CASE OF SMALL= 15V
19~22 R1694
26~52
R4205 10K
R4205-*1
2.2K 19~22
0
EU_OPT
R1687 EU_OPT EU_OPT
10K C
R1690 R4202
0
0
EU_OPT
OPT B
EU_OPT
R1675 Q1615
2K R1677
2SC3052
EU_OPT
10K
R1695 E
R4207
12K
51K
OPT
EU_OPT
C
R1680
REC_8
B
1K
EU_OPT
Q1613
OPT E 2SC3052
R1676
560
C
EU_OPT
B Q1611
2SC3052
EU_OPT
R1681 E
OPT
R1678 1K
680
Ver. 1.1
SCART/RCA
41
LGE Internal Use Only