Read LG 42LV555H (CHASSIS:LA05E) 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.
470K
R1774
27pF
C1707
RGB_R
1 1 : E 1 8
27pF
C1712
470K
R1769
OPT
10K
R1767
22pF
OPT
OPT
C1719
100pF
C1720
470K
R1763
OPT
0
R1760
0 . 1 u F
C1730
REAR_CVBS
15:B20
22
R1752
470K
R1732
0 . 1 u F
C1743
75
OPT
OPT
R1726
75
R1725
27pF
C1734
22pF
OPT
C1733
PC_L_IN
1 0 : I 7
RGB_G
1 1 : E 1 8
15K
R1720
75
R1719
15K
R1718
470K
R1716
15K
R1712
COMP_R_IN
1 0 : I 9
COMP_L_IN
1 0 : I 9
SPEAK_OUT_L+
3:AF9
27pF
C1709
RGB_B
1 1 : E 1 7
22pF
OPT
C1705
COMP_Pr
1 1 : E 1 7
22pF
C1702
22pF
C1703
10K
R1703
27pF
C1706
KDS184
D1700
A2
C
A1
COMP_Y
1 1 : E 1 7
PC_R_IN
1 0 : I 7
75
R1714
22
R1715
27pF
C1722
REAR_L_IN
1 0 : I 9
COMP_Pb
1 1 : E 1 6
0 . 1 u F
C1736
470K
R1727
470K
R1730
34
R1733
REAR_INCM
1 0 : I 9
COMP_VID_INCM
1 1 : E 1 6
SIDE_INCM
1 0 : I 7
COMP_INCM
1 0 : I 8
PC_INCM
1 0 : I 7
0
R1751
RGB_HS
1 1 : E 1 0
0
OPT
R1754
RGB_VS
1 1 : E 1 0
0
OPT
R1757
5 . 1
R1775
5 . 1
R1744
5 . 1
R1734
5 . 1
R1741
/DSUB_DET
9 : A J 2 3
1K
R1765
10K
R1766
75
R1768
SPEAK_OUT_L-
3:AF8
0
R1740
0
R1738
75
OPT
OPT
R1737
75
OPT
OPT
R1736
0
R1729
BG1608B121F
R1782
RGB_BEAD
BG1608B121F
R1783
RGB_BEAD
BG1608B121F
R1784
RGB_BEAD
0
OPT
R1722
0
OPT
R1717
0
OPT
R1713
34
R1711
R_VID_INCM
1 1 : E 1 8
G_VID_INCM
1 1 : E 1 7
34
R1700
34
R1701
B_VID_INCM
1 1 : E 1 7
THIRD_CVBS_INCM
1 1 : E 1 2
34
R1704
10K
R1705
/REAR_AV_DET
9 : A J 2 4
0.1uF
C1714
1K
R1707
470K
R1710
100pF
C1728
REAR_R_IN
1 0 : I 9
/REAR_DET
M25
/REAR_DET
N28
/COMP_DET
N25
1K
R1721
/COMP_AV_DET
9 : A J 2 4
10K
R1723
/COMP_DET
M17
0.1uF
C1738
0
R1731
100pF
C1742
470K
R1755
470K
R1759
SIDE_R_IN
1 0 : I 7
75
R1761
100pF
C1718
SIDE_L_IN
1 0 : I 8
/SIDE_DET
M10
SIDE_CVBS
15:B18
/SIDE_AV_DET
9 : A J 2 4 ; 5 : N 1 5
/SIDE_DET
I 1 1
0.1uF
C1704
22
R1776
22
R1777
0
R1780
0
R1781
0
R1782-*1
RGB_NO_BEAD
0
R1783-*1
RGB_NO_BEAD
0
R1784-*1
RGB_NO_BEAD
GPIO_IIC_SCL
9 : A J 2 7
GPIO_IIC_SDA
3.3K
R1724
3.3K
R1753
470
R1708
470
R1706
470
R1728
22
R1748
22
R1747
22
R1749
5.1K
R1745
5.1K
R1743
5.1K
R1742
0
R1762
0
R1735
0
R1702
0
R1770
0
R1756
0
R1750
0
R1709
0
R1764
74HCT14D
IC1701
5
3A
11
5A
6
3Y
12
6Y
7
GND
13
6A
2
1Y
8
4Y
14
VCC
3
2A
9
4A
1
1A
4
2Y
10
5Y
1K
R1758
P P J 2 3 8 - 0 1
JK1702
5D
[GN2]O-SPRING
6D
[GN2]E-LUG
4D
[GN2]CONTACT
7E
[BL2]E-LUG-S
5E
[BL2]O-SPRING
7F
[RD2]E-LUG-S
5F
[RD2]O-SPRING_1
5G
[WH2]O-SPRING
4H
[RD2]CONTACT
5H
[RD2]O-SPRING_2
6H
[RD2]E-LUG
6A
[YL1]E-LUG
5A
[YL1]O-SPRING
4A
[YL1]CONTACT
5B
[WH1]O-SPRING
4C
[RD1]CONTACT
5C
[RD1]O-SPRING
6C
[RD1]E-LUG
+3.5V_ST
1K
R1772
0
R1771
SPG09-DB-010
P1700
1
RED
2
GREEN
3
BLUE
4
GND_1
5
DDC_GND
6
RED_GND
7
GREEN_GND
8
BLUE_GND
9
NC
10
SYNC_GND
11
GND_2
12
DDC_DATA
13
H_SYNC
14
V_SYNC
15
DDC_CLOCK
16
SHILED
10uF
16V
16V
C1729
OPT
KJA-PH-1-0177
JK1701
3
M3_DETECT
4
M4
5
M5_GND
1
M1
6
M6
M24C02-RMN6T
IC1700
3
E2
2
E1
4
VSS
1
E0
5
SDA
6
SCL
7
WC
8
VCC
+5V_DEVICE
+5V_DEVICE
+5V_DEVICE
+5V_DEVICE
+5V_DEVICE
+5V_DEVICE
39pF
OPT
OPT
C1701
0 . 1 u F
C1708
15pF
50V
C1710
15pF
50V
C1711
0 . 1 u F
C1716
0 . 1 u F
C1715
0 . 1 u F
C1731
39pF
OPT
OPT
C1735
47uF
16V
C1739
0 . 1 u F
C1740
0 . 1 u F
C1741
47pF
50V
50V
C1744
OPT
L1704
2SC3052
Q1700
E
B
C
2SC3052
Q1702
E
B
C
2SC3052
Q1701
E
B
C
10uF
16V
16V
C1737
10uF
16V
C1713
10uF
16V
C1700
30V
ZD1720
30V
ZD1704
OPT
30V
ZD1703
30V
ZD1701
30V
ZD1715
30V
ZD1712
30V
ZD1705
OPT
30V
ZD1716
30V
ZD1719
30V
ZD1718
30V
ZD1706
30V
ZD1711
30V
ZD1721
OPT
30V
ZD1702
30V
ZD1700
30V
ZD1717
30V
ZD1707
30V
ZD1710
30V
ZD1709
30V
ZD1722
OPT
30V
ZD1714
30V
ZD1708
30V
ZD1713
P E J 0 2 7 - 0 4
JK1700
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
P E J 0 2 7 - 0 4
JK1703
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
10K
R1739
+5V_DEVICE
EXT_SPK
1 0 : I 7
PC RGB IN
SPEAKER OUT
PC AUDIO IN
Place TP near COMPONENT connector
Trace alongside COMP_Y signal
Trace alongside COMP_Y signal
INCM TRACE
T r a c e a l o n g s i d e R G B _ R s i g n a l
P l a c e T P n e a r R G B c o n n e c t o r
T r a c e a l o n g s i d e R G B _ G s i g n a l
T r a c e a l o n g s i d e R G B _ B s i g n a l
P l a c e T P / r e s i s t o r n e a r R E A R A V c o n n e c t o r
P l a c e T P n e a r R G B c o n n e c t o r
P l a c e T P n e a r R G B c o n n e c t o r
Trasce between REAR_L_IN and REAR_R_IN signals
Trasce between SIDE_L_IN and SIDE_R_IN signals
P l a c e T P / r e s i s t o r n e a r S I D E A V c o n n e c t o r
Trasce between COMP_L_IN and COMP_R_IN signals
Place TP/resistor near COMPONENT connector
Trasce between PC_L_IN and PC_R_IN signals
P l a c e T P / r e s i s t o r n e a r P C A U D I O I N c o n n e c t o r
P l a c e T P n e a r T H I R D _ C V B S s i g n a l s t a r t p o i n t
Trace alongside THIRD_CVBS signal
Trace alongside THIRD_CVBS signal
CVBS TEST
SIDE AV
EXT_JACK
17
REAR AV / COMPONENT
18
LV555H-UA
2 0 1 0 . 1 2 . 1 0
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