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.
0 . 2 2 u F
16V
16V
C1505
REAR_CVBS
17:M24
SDA1
9 : A L 1 5 ; 3 : F 1 9 ; 8 : S 1 6 ;
1 8 : J 2 5
0
R1518
+D_9V
33pF
50V
50V
OPT
C1560
+3.3V_VDEC
+3.3V_VDEC
100
R1525
SUB_CVBS
V18
+A1.8V_VDEC
100
R1505
4.7K
1%
R1510
51
24pF
C1509
51
R1509
27MHz
X1500
0
R1520
3.3K
OPT
R1532
24pF
C1526
TUNER_CVBS
1:O14
/VDEC_RESET
9 : A J 2 6
BLM18PG121SN1D
L1500
51
R1500
SDA2
9:AL14;1:AN21
75
R1534
SUB_CVBS
P15
MAIN_CVBS_INCM
1 1 : E 1 2
33pF
50V
C1543
OPT
R1514
220
R1524
100
R1542
33pF
50V
50V
C1542
TW9910DANB2-GR
IC1501
1
VDDE_1
2
SCLK
3
SDAT
4
PDN
5
RSTB
6
TMODE
7
NC_1
8
AVD_1
9
YMUX3
10
YMUX2
11
YGND
12
YMUX1
13
YMUX0
14
AVS_1
15
CIN0
16
AVD_2
17
AVS_2
18
NC_2
19
VSS_1
20
VS
21
HS
22
MPOUT
23
CLKX2
24
VSSE_1
25
VDDE_2
26
VD[15]
27
VD[14]
28
VD[13]
29
VD[12]
30
VD[11]
31
NC_3
32
VDD
33
VD[10]
34
VD[9]
35
VD[8]
36
VD[7]
37
VD[6]
38
VD[5]
39
VD[4]
40
VD[3]
41
VD[2]
42
VSS_2
43
NC_4
44
VD[1]
45
VD[0]/SIAD0
46
VSSE_2
47
XTI
48
XTO
1M
R1529
+A1.8V_VDEC
3.3K
R1522
R1531
OPT
470
R1523
220
R1506
34
R1504
51
AR1520
+D1.8V_VDEC
470
R1516
51
R1521
MAIN_CVBS
1 1 : E 1 4
BLM18PG121SN1D
L1501
VDEC_656_DATA[0-7]
9 : A J 2 0
33pF
50V
OPT
C1561
+D_1.8V
+D1.8V_VDEC
100
R1515
SIDE_CVBS
1 7 : I 1 2
470
R1517
VDEC_656_CLK
9 : A J 2 0
+3.3V_VDEC
+D_9V
TEA6425DT
IC1502
3
IN2
2
SDA
4
SCL
1
IN1
6
IN4
5
IN3
7
SUB
8
IN5
9
VCCP
10
IN6
11
GND
12
OUT8
13
OUT7
14
OUT6
15
OUT5
16
OUT4
17
OUT3
18
OUT2
19
OUT1
20
VCC
0 . 2 2 u F
16V
16V
C1531
75
R1508
SCL1
9 : A L 1 5 ; 3 : F 1 9 ; 8 : S 1 6 ;
1 8 : J 2 5
100
R1541
+D_1.8V
470
R1519
SCL2
9:AL14;1:AN22
220
R1507
4.7K
1%
R1512
10uF 6.3V
C1501
10uF
6.3V
C1500
10uF 6.3V
C1503
0 . 1 u F
C1502
0 . 1 u F
C1507
0 . 1 u F
C1511
0 . 1 u F
C1510
OPT
C1514
0 . 0 1 u F
C1516
OPT
0 . 1 u F
C1518
0 . 1 u F
C1522
0 . 1 u F
C1521
0 . 1 u F
C1523
0 . 1 u F
C1520
OPT
0 . 0 1 u F
C1524
OPT
0 . 0 1 u F
C1519
OPT
2SC3052
Q1500
E
B
C
2SC3052
Q1501
E
B
C
+D_9V
+12V
1W
200
R1501
10uF
16V
16V
C1506
1W
200
R1502
120-ohm
L1502
8.2V
ZD1500
VDEC_656_DATA[2]
VDEC_656_DATA[5]
VDEC_656_DATA[7]
VDEC_656_DATA[4]
VDEC_656_DATA[3]
VDEC_656_DATA[1]
VDEC_656_DATA[0]
VDEC_656_DATA[6]
VDEC
15
18
LV555H-UA
2 0 1 0 . 1 2 . 1 0
0x90
I 2 C : 0 x 8 8
I2C
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