Read LG 52LG7500-ZB (CHASSIS:LD86F) 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.
FE_TS_DATA[7]
FE_TS_DATA[6]
CI_DATA[2]
T_ADDR[4]
T_ADDR[3]
CI_DATA[7]
T_ADDR[8]
T_ADDR[2]
EMI_ADDR[7]
FE_TS_DATA[7]
T_ADDR[9]
T_ADDR[11]
EMI_ADDR[14]
T_ADDR[14]
FE_TS_DATA[4]
CI_ADDR[0-14]
FE_TS_DATA[1]
FE_TS_DATA_CLK_BUF
FE_TS_DATA[3]
FE_TS_DATA[2]
CI_ADDR[14]
T_ADDR[16]
CI_DATA[0-7]
FE_TS_DATA_CLK
FE_TS_DATA[1]
FE_TS_DATA_SYN
EMI_ADDR[1-14,16],EMI_BE1
CI_DATA[5]
FE_TS_DATA[0]
CI_ADDR[2]
EMI_ADDR[9]
CI_ADDR[3]
EMI_ADDR[16]
T_ADDR[11]
CI_DATA[1]
EMI_ADDR[12]
EMI_ADDR[3]
FE_TS_DATA[0-7],FE_TS_DATA_CLK,FE_TS_DATA_SYN,FE_TS_DATA_VAL
CI_ADDR[13]
T_ADDR[12]
FE_TS_DATA[0]
T_ADDR[1]
CI_ADDR[11]
CI_ADDR[12]
CI_ADDR[0]
EMI_ADDR[2]
CI_ADDR[4]
CI_DATA[4]
EMI_ADDR[5]
FE_TS_DATA_CLK
T_ADDR[1]
EMI_ADDR[1]
T_ADDR[4]
EMI_ADDR[4]
T_ADDR[5]
EMI_BE1
CI_ADDR[0-14]
CI_ADDR[6]
EMI_DATA[6]
EMI_ADDR[13]
T_ADDR[13]
T_ADDR[3]
EMI_DATA[7]
T_ADDR[2]
EMI_ADDR[6]
EMI_BE1,EMI_ADDR[1-14],EMI_ADDR[16]
T_ADDR[9]
EMI_DATA[5]
FE_TS_DATA[5]
T_ADDR[10]
EMI_ADDR[11]
EMI_ADDR[8]
CI_DATA[6]
T_ADDR[0]
EMI_DATA[4]
CI_DATA[3]
CI_ADDR[5]
EMI_DATA[3]
FE_TS_DATA[2]
EMI_DATA[2]
T_ADDR[14]
T_ADDR[8]
CI_ADDR[9]
EMI_DATA[1]
CI_ADDR[10]
FE_TS_DATA[4]
T_ADDR[6]
EMI_DATA[0]
CI_ADDR[1]
T_ADDR[10]
T_ADDR[0]
FE_TS_DATA[0-7],FE_TS_DATA_CLK,FE_TS_DATA_VAL,FE_TS_DATA_SYN
EMI_DATA[0-7]
EMI_ADDR[1-14,16],EMI_BE1
T_ADDR[16]
FE_TS_DATA[6]
CI_ADDR[8]
T_ADDR[6]
FE_TS_DATA_VAL
T_ADDR[7]
T_ADDR[5]
T_ADDR[7]
CI_ADDR[7]
T_ADDR[0-14,16]
EMI_ADDR[10]
FE_TS_DATA_SYN
T_ADDR[12]
T_ADDR[13]
FE_TS_DATA[3]
FE_TS_DATA[5]
CI_DATA[0]
EMI_ADDR[1-14,16],EMI_BE1
CI_DATA[3]
CI_DATA[4]
CI_DATA[5]
CI_DATA[6]
CI_DATA[7]
CI_ADDR[10]
CI_ADDR[11]
CI_ADDR[9]
CI_ADDR[8]
CI_ADDR[13]
CI_ADDR[14]
CI_ADDR[12]
CI_ADDR[7]
CI_ADDR[6]
CI_ADDR[5]
CI_ADDR[4]
CI_ADDR[3]
CI_ADDR[2]
CI_ADDR[1]
CI_ADDR[0]
CI_DATA[0]
CI_DATA[1]
CI_DATA[2]
CI_TS_DATA_VAL
FE_TS_DATA[0-7],FE_TS_DATA_CLK,FE_TS_DATA_VAL,FE_TS_DATA_SYN
TS_DATA_CLK
TS_DATA[0]
CI_CD1
004:B2
AR1511
33
CI_OE
CI_LATCH
CI_TS_DATA_CLK
CI_CD2
CI_IRQ
TS_DATA[2]
CI_TS_DATA[2]
AR1507
33
D_T/R
GND
TS_DATA_VAL
CI_IOWR
003:K3
/CI_TS_SEL
GND
CI_TS_DATA_VAL
CI_IORD
003:K3;004:B3
EMI_notBAA
GND
/CI_TS_SEL
EMI_notCSD
GND
TS_DATA[5]
CI_TS_DATA_SYN
IC1505
74LCX373MTCX_NL
@compC
3
D0
2
O0
4
D1
1
OE
6
O2
5
O1
7
D2
8
D3
9
O3
10
GND
11
LE
12
O4
13
D4
14
D5
15
O5
16
O6
17
D6
18
D7
19
O7
20
VCC
REG
CI_CS
TS_DATA[3]
GND
CI_CS
AR1505
33
FE_TS_DATA_CLK_BUF
CI_TS_DATA[7]
3V3_CI
FE_TS_DATA_CLK_BUF
TS_DATA[2]
5.0V
5.0V
EMI_BE0
TS_DATA[4]
EMI_Wait
AR1506
33
R1525
33
TS_DATA_VAL
CI_TS_DATA[4]
GND
AR1501
33
5.0V
CI_TS_DATA[7]
003:B7
L1500
HH-1M3216-501
CI_RST
CI_TS_SEL
AR1510
33
TS_DATA[1]
TS_DATA[6]
CI_IOWR
CI_WAIT
TS_DATA_SYN
CI_IRQ
CI_TS_DATA[1]
CI_IORD
CI_LATCH
EMI_notOE
CI_TS_DATA[5]
003:B7
GND
AR1500
33
3V3_CI
GND
CI_TS_DATA[5]
CI_OE
GND
CI_TS_DATA[6]
GND
3V3_CI
CI_WAIT
CI_TS_DATA_SYN
AR1509
33
REG
003:E6
GND
GND
TS_DATA[4]
GND
TS_DATA[6]
GND
TS_DATA[7]
GND
EMI_DATA[0-7]
IC1506
74LCX373MTCX_NL
@compC
3
D0
2
O0
4
D1
1
OE
6
O2
5
O1
7
D2
8
D3
9
O3
10
GND
11
LE
12
O4
13
D4
14
D5
15
O5
16
O6
17
D6
18
D7
19
O7
20
VCC
5.0V_CI
CI_CS
AR1504
33
CI_TS_SEL
TS_DATA[5]
IC1502
74LVC541A(PW)
BUFFER
3
A1
2
A0
4
A2
1
OE1
6
A4
5
A3
7
A5
8
A6
9
A7
10
GND
11
Y7
12
Y6
13
Y5
14
Y4
15
Y3
16
Y2
17
Y1
18
Y0
19
OE2
20
VCC
CI_WE
3V3_CI
GND
EMI_notLBA
GND
CI_TS_DATA[6]
003:B7
GND
GND
TS_DATA[3]
3V3_CI
EMI_BE1,EMI_ADDR[1-14],EMI_ADDR[16]
IC1509
74LVC14APW
INVERTER
3
2A
2
1Y
4
2Y
1
1A
6
3Y
5
3A
7
GND
8
4Y
9
4A
10
5Y
11
5A
12
6Y
13
6A
14
VCC
GND
CI_TS_DATA[0]
CI_CS
IC1500
74LVC541A(PW)
BUFFER
3
A1
2
A0
4
A2
1
OE1
6
A4
5
A3
7
A5
8
A6
9
A7
10
GND
11
Y7
12
Y6
13
Y5
14
Y4
15
Y3
16
Y2
17
Y1
18
Y0
19
OE2
20
VCC
GND
CI_TS_DATA[1]
AR1503
33
GND
CI_TS_DATA[3]
TS_DATA[1]
AR1508
33
CI_CS
CI_TS_DATA[3]
/SYS_IRQ2
3V3_CI
CI_TS_DATA[4]
003:B7
TS_DATA[7]
TS_DATA_CLK
TS_DATA_SYN
AR1502
33
FE_TS_DATA_VAL_AND_ERR
TS_DATA[0]
CI_TS_DATA[2]
IC1504
74LVC245A
Bidirec
(High:A->B)
3
A1
2
A0
4
A2
1
DIR
6
A4
5
A3
7
A5
8
A6
9
A7
10
GND
11
B7
12
B6
13
B5
14
B4
15
B3
16
B2
17
B1
18
B0
19
OE
20
VCC
CI_CS
3V3_CI
CI_TS_DATA_CLK
GND
GND
CI_WE
R1519
47
R1500
47
R1512
47
R1511
47
R1510
47
R1527
47
R1521
47
R1520
47
R1508
47
R1514
47
R1515
47
R1509
47
R1530
4.7K
C1504
0.1uF
C1502
0.1uF
C1518
0.1uF
C1508
0.1uF
C1510
0.1uF
C1511
0.1uF
C1506
0.1uF
C1500
0.1uF
C1501
0.1uF
C1503
0.1uF
C1514
0.1uF
C1509
0.1uF
C1505
0.1uF
C1507
0.1uF
R1504
10K
R1503
10K
R1531
10K
R1518
10K
R1517
10K
R1501
10K
R1529
10K
R1505
10K
R1502
10K
R1524
100
R1522
100
R1523
100
R1507
0
READY
R1513
0
R15060
READY
R1516
OPT
CI_TS_DATA[0]
IC1503
74LCX244MTC
@compC
3
O4
2
I0
4
I1
1
OE1
6
I2
5
O5
7
O6
8
I3
9
O7
10
GND
11
I7
12
O3
13
I6
14
O2
15
I5
16
O1
17
I4
18
O0
19
OE2
20
VCC
IC1501
74LCX244MTC
@compC
3
O4
2
I0
4
I1
1
OE1
6
I2
5
O5
7
O6
8
I3
9
O7
10
GND
11
I7
12
O3
13
I6
14
O2
15
I5
16
O1
17
I4
18
O0
19
OE2
20
VCC
C1512
0.1uF
CI_CD2
R1532
10K
/SYS_IRQ1
GND
CI_CD1
R1528
47
GND
3V3_CI
D_T/R
FE_TS_DATA_VAL
3V3_CI
CI_IORD
GND
R1526
47
CI_OE
3V3_CI
FE_TS_DATA_VAL_AND_ERR
GND
GND
C1519
0.1uF
TUNER_ERROR
GND
C1513
0.1uF
3V3_CI
3V3_CI
TP1505
TP1506
TP1517
TP1518
TP1519
TP1520
TP1521
TP1522
TP1523
TP1524
TP1525
TP1526
TP1527
TP1528
TP1529
TP1530
TP1531
TP1532
TP1533
TP1560
TP1607
TP1608
TP1616
TP1637
TP1638
TP1639
+3.3V_STi
C1517
10uF
16V
IC1512
NL17SZ08DFT2G
3
GND
2
IN_A
4
OUT_Y
1
IN_B
5
VCC
IC1507
NL17SZ08DFT2G
3
GND
2
IN_A
4
OUT_Y
1
IN_B
5
VCC
IC1508
KIC7SZ32FU
3
GND
2
IN_A
4
OUT_Y
1
IN_B
5
VCC
P1500
10067972-050LF
G1
G2
57
21
52
16
10
47
41
5
36
59
23
45
54
18
49
43
13
7
38
2
25
56
20
51
15
9
46
40
4
35
58
22
53
17
11
48
42
12
6
37
1
24
55
19
50
44
14
8
39
3
26
60
27
61
28
62
29
63
30
64
31
32
33
34
65
66
67
68
15. Common Interface
C
2008
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