Read LG 42LG7500 (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.
MT8280DWON_TX
C1866
0.1uF
16V
L1808
120-ohm
C1844
0.1uF
16V
C1811
0.1uF
16V
C1823
0.1uF
16V
C1841
0.1uF
16V
R1836
4.7K
C1872
0.01uF
50V
C1875
0.01uF
50V
C1873
0.01uF
50V
M8280_DDRV
C1864
0.1uF
16V
C1853
0.1uF
16V
C1802
0.01uF
50V
C1848
0.1uF
16V
MT8280DWON_RX
MT8280_CORE_1.0V
C1855
0.1uF
16V
C1859
1uF
16V
R1825
4.7K
4.7K
READY
MT8280_DVDD33
C1838
0.1uF
16V
AVDD12_DMPLL
C1860
1uF
16V
MT8280_AV33
C1837
0.1uF
16V
R1839
12K
1%
C1877
4.7uF
10V
C1889
10uF
16V
R1837
4.7K
C1856
1uF
16V
Q1800
KRC103S
E
B
C
C1839
0.1uF
16V
C1886
0.1uF
16V
C1894
330pF
50V
C1827
4.7uF
10V
R1813
10K
C1862
0.1uF
16V
MT8280_DVDD33
C1832
1uF
16V
IC1803
BD9130NV
3
ITH
2
VCC
4
GND
1
ADJ
5
PGND
6
SW
7
PVCC
8
EN
MT8280_CORE_1.0V
MT8280_DVDD33
R1834
4.7K
R1830
4.7K
IC1806
AZ1117H-1.2TRE1
$0.055
1
ADJ/GND
2
OUT
3
IN
C1871
0.01uF
50V
R1811
820K
READY
IC1802
BD9130NV
3
ITH
2
VCC
4
GND
1
ADJ
5
PGND
6
SW
7
PVCC
8
EN
AVDD12
C1858
4.7uF
10V
C1843
4.7uF
10V
C1891
22pF
L1803
120-ohm
C1874
0.01uF
50V
MT8280_INT0
L1813
2.2uH
C1801
10uF
16V
C1863
0.1uF
16V
C1857
1uF
16V
R1827
4.7K
4.7K
R1812
0
C1845
0.1uF
16V
X1800
27.00000MHz
R1805
15K
1%
AVDD12_SYSPLL
C1835
4.7uF
10V
C1851
0.1uF
16V
R1819
0
MT8280_PWN
C1876
1uF
16V
L1804
120-ohm
MT8280_DVDD33
R1831
4.7K
C1888
1uF
16V
C1852
0.1uF
16V
C1854
0.1uF
16V
MT8280_DVDD33
C1840
0.1uF
16V
MT8280_DVDD33
M8280_DDRV
R1800
10K
R1826
4.7K
4.7K
READY
C1821
0.1uF
16V
R1814
10K
MT8280DWON_RX
C1803
0.01uF
50V
R1840
18K
C1830 0.1uF
16V
C1847
0.1uF
16V
R1815
10K
AVDD12_MJCPLL
C1849
0.1uF
16V
C1800
680pF
50V
MT8280_DVDD33
C1826
0.1uF
16V
C1890
22pF
L1812
120-ohm
IC1801
MX25L4005AM2C-12G
3
WP#
2
SO
4
GND
1
CS#
5
SI
6
SCLK
7
HOLD#
8
VCC
C1867
0.1uF
16V
C1842
1uF
16V
C1846
0.1uF
16V
MT8280_PRST
R1806
4.7K
1/10W
1%
L1802
MBW3216-501TF
C1887
10uF
16V
MT8280DWON_TX
MT8280_AV33
C1861
0.1uF
16V
C1869
0.1uF
16V
C1868
0.1uF
16V
C1865
0.1uF
16V
R1816
10K
READY
C1870
0.01uF
50V
L1800
2.2uH
TP1825
C1850
0.1uF
16V
P1803
SMW200-04
READY
1
2
3
4
P1802
SMW200-04
READY
1
2
3
4
SCL
SDA
R1817
22
R1818
22
C1804
10uF
16V
C1812
10uF
16V
C1895 10uF
L1807
120-ohm
MT8280_DVDD33
C1885
4.7uF
10V
C1884
0.1uF
16V
AVDD12_MJCPLL
C1880
0.1uF
16V
C1883
4.7uF
10V
L1809
120-ohm
L1811
120-ohm
AVDD12
L1810
120-ohm
C1882
0.1uF
16V
AVDD12_SYSPLL
AVDD12_DMPLL
C1878
10uF
16V
C1881
4.7uF
10V
C1879
1uF
16V
C1815
0.1uF
16V
L1806
120-ohm
+5VST_1
+5VST_1
L1801
120-ohm
R1801
100
RL_ON/PWR_ONOFF_2
RL_ON/PWR_ONOFF_2
R1804
0
RL_ON/PWR_ONOFF_2
C1810
10uF
16V
C1805
10uF
16V
C1834
10uF
16V
C1806
10uF
16V
IC1600
MT8280FG
DVDD33_1
C8
DVDD33_2
D9
DVDD33_3
W7
DVDD33_4
W19
DVDD33_5
Y20
DVDD18_1
A1
DVDD18_2
B2
DVDD18_3
C6
DVDD18_4
D7
DVDD18_5
F3
DVDD18_6
G1
DVDD18_7
G4
DVDD18_8
H2
DVDD18_9
M1
DVDD18_10
M4
DVDD18_11
N3
DVDD18_12
U2
DVDD18_13
V1
DVDD18_14
V4
DVDD18_15
W3
DVDD18_16
AA4
DVDD18_17
AB3
DVDD10_1
J10
DVDD10_2
J13
DVDD10_3
J14
DVDD10_4
K9
DVDD10_5
K11
DVDD10_6
K12
DVDD10_7
K14
DVDD10_8
L10
DVDD10_9
L13
DVDD10_10
M10
DVDD10_11
M13
DVDD10_12
N9
DVDD10_13
N11
DVDD10_14
N12
DVDD10_15
N14
DVDD10_16
P10
DVDD10_17
P13
DVDD10_18
P14
DVSS_1
A4
DVSS_2
B5
DVSS_3
C3
DVSS_4
D1
DVSS_5
D4
DVSS_6
E2
DVSS_7
J3
DVSS_8
J9
DVSS_9
J11
DVSS_10
J12
DVSS_11
K1
DVSS_12
K4
DVSS_13
K10
DVSS_14
K13
DVSS_15
L9
DVSS_16
L11
DVSS_17
L12
DVSS_18
L14
DVSS_19
M9
DVSS_20
M11
DVSS_21
M12
DVSS_22
M14
DVSS_23
N10
DVSS_24
N13
DVSS_25
P2
DVSS_26
P9
DVSS_27
P11
DVSS_28
P12
DVSS_29
R1
DVSS_30
R4
DVSS_31
T3
DVSS_32
W6
DVSS_33
Y2
DVSS_34
Y5
DVSS_35
AA1
IC1600
MT8280FG
RXD
AB21
SFDI
B8
PRST_
W18
PWN_
Y18
EFUSE
W15
NS_XTALI
V21
SDA
AB20
JTMS
Y22
JTRST
W21
JRTCK
AA22
JTCK
Y21
JTDI
W20
JTDO
AA21
INTO_
V17
GPIO0
Y6
GPIO1
Y7
GPIO2
Y16
GPIO3
W16
GPIO4
W17
GPIO5
V16
TXD
AA20
SCL
Y19
SFCS
A7
SFCK
D8
SFDO
A8
NS_XTALO
V22
TN0
U21
TP0
U22
AVDD33_XTAL
V20
AVDD12_SYSPLL
T20
AVDD12_MJCPLL
T22
AVDD12_DMPLL
T21
AVSS33_XTAL
U20
AVSS_PLL_1
R20
AVSS_PLL_2
R21
AVSS_PLL_3
R22
IC1804
KIA78R33F
1
VIN
2
VC
3
VOUT
4
NC
5
GND1
6
GND2
R1802
10K
R1803
10K
MT8280_DWN
C1822
100uF
16V
C1825
100uF
16V
C1828
100uF
16V
C1829
100uF
16V
C1831
100uF
16V
C1833
100uF
16V
C1836
100uF
16V
MT8280_FLASH_WP
R18
38
6.
2K
1%
R1807
9.1K
1%
281.685mA
551mA
857mA
IO POWER
DDR POWER
CORE POWER
16mA
For DownLoad
MT8280_UART0
MT8280_UART1
For Debugging
From cortez
LOW : DRAM /DownLoad MODE
HIGH : FLASH MODE
1.82V ADJ
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