LG 55LV555H (CHASSIS:LA05E) Service Manual ▷ View 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.
0 . 1 u F
16V
16V
C1610
OPT
GND
MLB-201209-0120P-N2
L1613
+D_1.8V
AZ1117H-1.8TRE1(EH13A)
IC1605
AAC
2
OUTPUT
3
INPUT
1
ADJ/GND
0 . 1 u F
16V
16V
C1628
OPT
MLB-201209-0120P-N2
L1601
10K
R1621
MLB-201209-0120P-N2
L1600
BLM18PG121SN1D
L1605
0
R1614
10
R1610
910K
1%
1%
R1626
0 . 1 u F
C1607
2uH
L1602
0 . 1 u F
C1608
THERMAL
MP2208DL-LF-Z
EAN60911601
DEV
IC1603
3
PGND_1
2
SS
4
SW_1
1
AGND
6
NC
5
IN_1
7
BS
8
VCC
9
POK
10
IN_2
11
SW_2
12
PGND_2
13
EN/SYNC
14
FB
15
EP
0 . 1 u F
C1616
30K
1%
R1624
470K
1%
R1615
0
R1623
100K
R1605
0 . 1 u F
C1626
0 . 1 u F
16V
C1635
+D_1.2V
+A_1.2V
+1.2V_BCM_EN
5:O17
+3.5V
47K
R1625
15K
1% BCD
1% BCD
R1606-*1
39K
1%SEMTECH
1%SEMTECH
R1606
THERMAL
AP2132MP-2.5TRG1
BCD
IC1602
3
VIN
2
EN
4
VCTRL
1
PG
5
NC
6
VOUT
7
ADJ
8
GND
9
[ E P ]
4.7K
1%
1%
BCD
R1604-*1
0 . 1 u F
OPT
C1604
10K
BCD
R1601
10K
SEMTECH
R1602
0 . 1 u F
OPT
C1603
10K
BCD
R1603
0 . 1 u F
C1611
OPT
0 . 1 u F
C1602
18K
1%
1%
SEMTECH
R1604
+3.3V
SC4215ISTRT
IC1602-*1
SEMTECH
3
VIN
2
EN
4
NC_2
1
NC_1
5
NC_3
6
VO
7
ADJ
8
GND
+2.5V
+5V_DEVICE
+3.5V_ST
3300pF
50V
DEV
C1639
100pF
50V
OPT
C1641
10K
1%
R1630
1/10W
10K
1%
R1629
0 . 0 1 u F
25V
25V
C1638
0.01uF
25V
C1637
NR8040T3R6N
3.6uH
L1615
10K
R1628
0 . 1 u F
C1643
0 . 0 1 u F
25V
25V
C1640
6.8K
R1627
MP2108DQ
EAN60991601
DEV
IC1606
3
LX
2
VIN
4
PGND
1
BST
5
SGND
6
SS
7
FB
8
COMP
9
VREF
10
RUN
+3.5V
+1.8V_DDR
MAIN_PWR_ON
5 : O 1 8 ; 4 : B 2 6
+3.5V_ST
XMARK_1.8V
BLM18PG121SN1D
L1604
XMARK
NFM18PS105R0J
6.3V
C1612
OUT
IN
GND
AP1117E18G-13
I C 1 6 0 5 - * 1
DIODES
2
OUT
3
IN
1
ADJ/GND
AZ1117BH-1.8TRE1
I C 1 6 0 5 - * 2
BCD
2
OUT
3
IN
1
ADJ/GND
C1614
OUT
IN
GND
10uF
6.3V
C1601
10uF
6.3V
C1605
OPT
22uF
6.3V
C1606
22uF
6.3V
6.3V
C1609
22uF
6.3V
6.3V
C1613
1uF
6.3V
6.3V
C1617
22uF
C1620
OPT
22uF
6.3V
C1630
22uF
6.3V
6.3V
C1636
22uF
6.3V
C1642
22uF
6.3V
C1634
22uF
6.3V
6.3V
C1632
22uF
6.3V
C1633
BCD
L1603
L1614
* D_1.8V
* +1.8V_DDR for DDR/ BCM3549
1.8V_DDR_BCM3549P
POWER_ST5V
16
R2
V o u t = 0 . 8 * ( 1 + R 1 / R 2 )
R1
B C M c o r e 1 . 2 V v o l t
MAX 3.1A
VOUT : 2.533V
R2
VOUT : 2.566V
S C 4 2 1 5 V o u t = 0 . 8 * ( 1 + R 1 / R 2 )
R1
A2.5V
AP2132 Vout=0.6*(1+R1/R2)
32/37/42LD660H-UA
18
2 0 1 0 . 1 0 . 1 1
Placed on SMD-TOP
C IN
3A
Vout=0.9*(1+R1/R2)
Placed on SMD-TOP
R e p l a c e d P a r t
R2
R1
Max 1100 mA
CLOSE TO LG1001
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
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.
22
R1871
GND
22
R1803
GND
SCL1
9 : A L 1 5 ; 3 : F 1 9 ; 8 : S 1 6 ;
15:U22
SDA1
9 : A L 1 5 ; 3 : F 1 9 ; 8 : S 1 6 ;
15:U21
+3.3V
IF_N_3549
1 1 : F 2 5
IF_P_3549
1 1 : F 2 3
0 . 0 1 u F
C1818
0 . 0 1 u F
C1811
0 . 1 u F
C1806
1K
R1855
IF_AGC_3549
1 1 : F 2 7
GEM_IF_AGC
AJ19
GEM_IF_AGC
D25
2N3906S-RTK
Q1806
Q1806
E
B
C
b_PTS_CTL
H20
+5V_bLAN_EXT
+5V_bLAN_EXT
MJ-623PT-6-S-SD
JK1801
1
2
3
4
5
6
7
b_PTS_CTL
AF7
bLAN_IR_IN_MODEM
5:AN12
1W
200
R1884
1W
200
R1885
CDS3C30GTH
30V
D1510
3.3K
R1800
JP1826
1/16W
10K
5%
R1888
3.3K
R1889
+12V_C_MPI
SPI_CLOCK 5:AM23
SPI_DIN
5:AM22
SPI_DOUT 5:AM22
MPI_DIN
5 : A I 1 9
MPI_DOUT
5:AM19
10uF
10V
10V
C1820
OPT
+5V_bLAN
YFDW254-06S
bLAN D/L wafer
JK1803
4
3
2
6
1
5
KDR412
40V
D1800
KDR412
40V
D1807
22
R1826
22
R1827
22
R1887
22
R1846
22
R1834
22
R1841
22
R1837
22
R1839
22
R1842
22
R1866
22
R1822
22
R1863
22
R1843
22
R1831
22
R1856
22
R1838
22
R1858
+5V_DEVICE
10uF
6.3V
6.3V
C1800
OPT
27pF
50V
50V
C1803
OPT
27pF
50V
50V
C1815
27pF
50V
50V
C1813
OPT
27pF
50V
50V
C1817
0 . 1 u F
16V
16V
C1812
0 . 1 u F
16V
16V
C1822
22uF
16V
16V
C1823
OPT
22uF
6.3V
6.3V
C1836
OPT
2200pF
50V
50V
C1831
100
R1804
100
R1806
L1820
2SC3052
Q1805
E
B
C
2SC3052
Q1803
E
B
C
2.2K
OPT
OPT
R1802
47K
R1879
100K
R1890
OPT
10K
R1882
+5V_bLAN
0 . 1 u F
16V
16V
C1833
1uF
10V
C1802
+12V_C
2.2K
OPT
OPT
R1801
+12V_C_MPI
22uF
OPT
OPT
C1804
1uF
10V
OPT
C1801
bLAN_POWER_MANAGE
5:N17;AG25
AO3407A
Q1807
G
D
S
47K
OPT
R1830
10K
R1877
bLAN_POWER_MANAGE
5:N17;AG21
0 . 1 u F
16V
16V
C1830
22K
OPT
R1829
2SC3052
Q1808
E
B
C
47K
R1892
+5V_ST
1uF
16V
C1805
47K
R1880
AO3407A
Q1804
G
D
S
47K
R1893
R1891
OPT
P E J 0 2 7 - 0 4
JK1800
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
30V
D1804
30V
D1805
30V
D1809
30V
D1801
30V
D1806
30V
D1803
30V
D1808
30V
D1802
BLM18PG121SN1D
L1810
TMMB-H502F
TU1800
1
NC_1
2
+3.3V
3
SCL
4
SDA
5
IF_AGC
6
GND_1
7
NC_2
8
NC_3
9
NC_4
10
DIF_N
11
DIF_P
12
GND_2
13
+5V
14
JP2_P1
15
JP2_P4
16
J 1 _ P 2
17
J 1 _ P 3
18
J 1 _ P 4
19
J 1 _ P 5
20
PTS
21
JP1_P3
22
JP1_P4
23
JP1_P5
24
JP1_P6
25
JP1_P7
26
JP1_P10
27
J 2 _ P 1
28
J 2 _ P 2
29
J 2 _ P 3
30
J 2 _ P 4
31
J 2 _ P 6
32
SHIELD
18
b-LAN
b-LAN
C l o s e t o b L A N
b-LAN POWER
M P I _ 5 V o r 1 2 V ( P I N 3 ) S e l e c t C o n t r o l f r o m b - L A N
MPI_12V
Need to 100 oHM 2W
SMD
B - L a n M P I p i n 3 o u t p u t p o w e r ( 1 2 V o r 5 V ) c o n t r o l
MPI_SENSE
MPI_DIN
GND
MPI_DOUT
Game_control
IR_OUT
B - L a n d E x t e r n a l R J 1 2 j a c k
BLAN CHECK
12V_JIG
18
LV555H-UA
2 0 1 0 . 1 2 . 1 0
BLAN CHECK
5VST_JIG
5VST_JIG
BLAN CHECK
BLAN CHECK
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