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.
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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