Read LG 47LT777H (CHASSIS:LA2FZ) 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.
RJP_CTRL0
R8764
4.7K
+3.5V_ST
R87041
0 OPT
+3.5V_ST
R8712
10K
OPT
10K
OPT
+3.5V_ST
R8719
100
R87086
100
R87004
0
JTAG_PTC
R8706
10K
10K
R87015
0
+12V
R87080
4.7K
R8767
4.7K
RJP_CTRL2_buffer
R8769
4.7K
C8707
0.01uF
UART3_TX
R8774
100
RJP_CTRL3_buffer
Q8711
2N3906S-RTK
E
B
C
C8703
47uF
25V
25V
+3.5V_ST
Q8700
2SC3875S(ALY)
2SC3875S(ALY)
E
B
C
R87039
0
RJP_CTRL0_buffer
LD8702
R8789
0
ZD8703
5.1V
R87037
100
RL_ON
POWER_ON/OFF2_1
R87071
100
R87075
4.7K
+3.5V_ST
+3.5V_ST
R87019
4.7K
C8709
0.01uF
SPI_DOUT
R8732
4.7K
UART_SWA
JP8701
L8700
MLB-201209-0120P-N2
R8797
1K
1K
OPT
C8702
0.01uF
0.01uF
ZD8705
3.6V
Q8708
SI4925BDY
3
S2
2
G1
4
G2
1
S1
5
D2_1
6
D2_2
7
D1_1
8
D1_2
R87008
0
JTAG_PTC
R8709
4.7K
R87067
100K
IC8701
MSP430F5419IPZR
MICOM_MEMORY
1
P6.4/A4
2
P6.5/A5
3
P6.6/A6
4
P6.7/A7
5
P7.4/A12
6
P7.5/A13
7
P7.6/A14
8
P7.7/A15
9
P5.0/VREF+/VEREF+
10
P5.1/VREF-/VEREF-
11
AVCC
12
AVSS
13
P7.0/XIN
14
P7.1/XOUT
15
DVSS
16
DVCC
17
P1.0/TA0CLK/ACLK
18
P1.1/TA0.0
19
P1.2/TA0.1
20
P1.3/TA0.2
21
P1.4/TA0.3
22
P1.5/TA0.4
23
P1.6/SMCLK
24
P1.7
25
P2.0/TA1CLK/MCLK
26
P2.1/TA1.0
27
P2.2/TA1.1
28
P2.3/TA1.2
29
P2.4/RTCCLK
30
P2.5
31
P2.6/ACLK
32
P2.7/ADC12CLK/DMAE0
33
P3.0/UCB0STE/UCA0CLK
34
P3.1/UCB0SIMO/UCB0SDA
35
P3.2/UCB0SOMI/UCB0SCL
36
P3.3/UCB0CLK/UCA0STE
37
DVSS3
38
DVCC3
39
P3.4/UCA0TXD/UCA0SIMO
40
P3.5/UCA0RXD/UCA0SOMI
41
P3.6/UCB1STE/UCA1CLK
42
P3.7/UCB1SIMO/UCB1SDA
43
P4.0/TB0
44
P4.1/TB1
45
P4.2/TB2
46
P4.3/TB3
47
P4.4/TB4
48
P4.5/TB5
49
P4.6/TB6
50
P4.7/TBCLK/SMCLK
51
P5.4/UCB1SOMI/UCB1SCL
52
P5.5/UCB1CLK/UCA1STE
53
P5.6/UCA1TXD/UCA1SIMO
54
P5.7/UCA1RXD/UCA1SOMI
55
P7.2/TBOUTH/SVMOUT
56
P7.3/TA1.2
57
P8.0/TA0.0
58
P8.1/TA0.1
59
P8.2/TA0.2
60
P8.3/TA0.3
61
P8.4/TA0.4
62
VCORE
63
DVSS2
64
DVCC2
65
P8.5/TA1.0
66
P8.6/TA1.1
67
P8.7
68
P9.0/UCB2STE/UCA2CLK
69
P9.1/UCB2SIMO/UCB2SDA
70
P9.2/UCB2SOMI/UCB2SCL
71
P9.3/UCB2CLK/UCA2STE
72
P9.4/UCA2TXD/UCA2SIMO
73
P9.5/UCA2RXDUCA2SOMI
74
P9.6
75
P9.7
76
P10.0/UCB3STE/UCA3CLK
77
P10.1/UCB3SIMO/UCB3SDA
78
P10.2/UCB3SOMI/UCB3SCL
79
P10.3/UCB3CLK/UCA3STE
80
P10.4/UCA3TXD/UCA3SIMO
81
P10.5/UCA3RXDUCA3SOMI
82
P10.6
83
P10.7
84
P11.0/ACLK
85
P11.1/MCLK
86
P11.2/SMCLK
87
DVCC4
88
DVSS4
89
P5.2/XT2IN
90
P5.3/XT2OUT
91
TEST/SBWTCK
92
PJ.0/TDO
93
PJ.1/TDI/TCLK
94
PJ.2/TMS
95
PJ.3/TCK
96
RST/NMI/SBWTDIO
97
P6.0/A0
98
P6.1/A1
99
P6.2/A2
100
P6.3/A3
JP8700
R8711
4.7K
R87084
100
R8738
10K
10K
Q8704
2SC3875S(ALY)
2SC3875S(ALY)
E
B
C
R8705
1K
SPI_CLOCK
R8783
100
R8729
5.1K
IR
R87073
0
UART3_TX
R87002
330
OPT
R8739
10K
RJP_CTRL4_buffer
Q8706
2SC3875S(ALY)
2SC3875S(ALY)
E
B
C
R8765
0
OPT
R8723
1K
R8761
100
+3.5V_ST
FRAM_SCL_3.5V
D8700
BAT54C
A2
C
A1
R8714
10K
OPT
10K
OPT
UART_SWB
R8784
100
AV1_CVBS_DET
+5V_ST
RJP_CTRL2
R8707
10K
10K
R87042
0
OPT
R8758
100
MISO_1
Q8712
2SC3875S(ALY)
2SC3875S(ALY)
E
B
C
R8734
100K
OPT
PTC_RX_5V
KEY2
PTC_TX
R87077
10K
R8780
100
RJP_CTRL3
R8726
10K
10K
RJP_CTRL1_buffer
R87064
4.7K
4.7K
UART3_RX
R87062
10K
R87087
100K
OPT
R87038
100
R87012
0
Q8718
2SC3875S(ALY)
E
B
C
LD8700
SAM2333
OPT
A2[RD]
C
A1[GN]
IC8702
KIA7027AF
OPT
2
G
3
O
1
I
LED_W/LG_LOGO
Q8722
2SC3875S(ALY)
E
B
C
R8717
100
Q8719
2SC3875S(ALY)
2SC3875S(ALY)
E
B
C
R8710
4.7K
R87070
100
C8708
0.01uF
R87003
330
OPT
R87061
10K
Q8705
2SC3875S(ALY)
2SC3875S(ALY)
E
B
C
R8770
100
MPI_DIN
R8782
4.7K
R87085
0
MPI_PWR_ON/OFF
R87007
0
L8701
R87069
100
Q8707
2SC3875S(ALY)
2SC3875S(ALY)
E
B
C
Q8717
2SC3875S(ALY)
E
B
C
P8700
YFDW254-14S
JTAG_PTC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
ZD8702
5.1V
ZD8701
5.1V
KEY1
R8733
0
C8705
0.01uF
ZD8706
3.6V
R87010
0
Q8701
2SC3875S(ALY)
2SC3875S(ALY)
E
B
C
R87032
10
R8786
0
OPT
+3.5V_ST
D8701
BAT54C
A2
C
A1
Q8713
2SC3875S(ALY)
2SC3875S(ALY)
E
B
C
C8706
0.01uF
R87030
470
R8715
100
R8730
5.1K
RJP_CTRL2_buffer
R8701
1K
R87082
10K
R87044
330
C8712
20pF
OPT
R8773
100
C8720
10uF
16V
16V
OPT
R8725
10K
10K
R87052
10K
R87050
0
0
R8724
1K
FRAM_SDA_3.5V
C8733
0.01uF
UART3_RX
R8735
10K
OPT
10K
OPT
ZD8704
5.1V
RJP_CTRL1
J25;L11
UART3_TX
R8746
4.7K
R8736
10K
OPT
10K
OPT
+3.5V_ST
R87005
0
R87081
100
100
R8708
10K
10K
+3.5V_ST
+5V_ST
R8779
100
OPT
bLAN_POWER_MANAGE
C8710
47uF
25V
25V
MPI_DOUT
UPDATE_SW
RESET_HIGH
RJP_CTRL4_buffer
ZD8700
5.1V
R8720
100
R87001
100
+5V_ST
+5V_ST
SPI_DIN
MISO_1
JP8702
R87016
0
C8701
47uF
25V
25V
+3.5V_ST
RJP_CTRL4
RJP_CTRL0_buffer
LD8701
RJP_CTRL1_buffer
bLAN_IR_IN_MODEM
R8716
100
R87034
330
R8752
4.7K
OPT
C8704
0.01uF
0.01uF
Q8714
2SA1504S
E
B
C
Q8721
2SC3875S(ALY)
E
B
C
R87072
10K
R87054
100
100
R87068
4.7K
4.7K
R8781
330
Q8710
2SC3875S(ALY)
2SC3875S(ALY)
E
B
C
R87066
100K
UART3_RX
POWER_ON/OFF1
R8737
100K
R87028
330
LED_R
R8792
47K
Q8703
2SC3875S(ALY)
2SC3875S(ALY)
E
B
C
L8702
MLB-201209-0120P-N2
R87040
0
Q8702
2SC3875S(ALY)
2SC3875S(ALY)
E
B
C
R8718
100
OPT
R87029
470
+3.5V_ST
C8700
47uF
25V
25V
R87090
4.7K
4.7K
R8747
4.7K
RJP_CTRL3_buffer
+3.5V_ST
R8704
1K
R87020
4.7K
R87091
100K
Q8720
2SC3875S(ALY)
2SC3875S(ALY)
E
B
C
C8711
27pF
OPT
IC8704
TXS0104EDR
3
A2
2
A1
4
A3
1
VCCA
6
NC_1
5
A4
7
GND
8
OE
9
NC_2
10
B4
11
B3
12
B2
13
B1
14
VCCB
R87083
100
+3.5V_ST
R8727
10K
10K
R8731
4.7K
Q8709
2SC3875S(ALY)
2SC3875S(ALY)
E
B
C
R87079
10K
+3.5V_ST
R87027
330
POWER_DET
POWER_ON/OFF2_2
IR_M
IR_M
R87065
470K
C8715
0.1uF
C8714
0.1uF
C8716
0.1uF
C8723
0.1uF
C8722
0.1uF
0.1uF
16V
C8730
0.1uF
0.1uF
C8731
0.1uF
0.1uF
C8732
0.1uF
R87026
1K
R8745
47K
C8729
47pF
50V
47pF
50V
C8728
47pF
50V
47pF
50V
C8717
2200pF
OPT
C8718
1uF
X8700
32.768KHz
IC8705
FM24C16B
3
NC_3
2
NC_2
4
VSS
1
NC_1
5
SDA
6
SCL
7
WP
8
VDD
R87055
0
0
R87074
0
0
R87088
0
0
ETNHUB_INT
/RTL8201_INT
JK8701
PEJ027-04
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
C8724
0.47uF
0.47uF
HDMI_CEC_PTC
ETHERNET_MDC
ETHERNET_MDIO
ETNHUB_PWR_ON/OFF
SOC_RESET
R87047
33
R87025
0 /ETHERNET_RESET
R87023
0 ETNHUB_ENDEFER
/RTL8201_PMEB
R8800
0
R8798
0
OPT
PTC_WOL
R87093
22
R87014
1K
OPT
EXT_SPK_DET
AMP_MUTE
R87049
470
R87013
330
EXT5V_CTRL
R87006
1K
EXT_5V
EXT12V_CTRL
R87009
1K
EXT_PWR_DET
R87011
1K
OPT
JK8700
KRJV9768-1001-024
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
FRAM_SDA_5V
FRAM_SCL_5V
ZD8708
OPT
ZD8707
OPT
R87101
100
R87102
100
FRAM_SCL_3.5V
R87098
10K
+3.5V_ST
FRAM_SCL_5V
FRAM_SDA_5V
R87096
0
FRAM_SDA_3.5V
R87097
0
RUE003N02
Q8723
S
D
G
+3.5V_ST
C8735
0.1uF
16V
0.1uF
16V
OPT
+5V_ST
R87099
10K
R87095
0
RUE003N02
Q8724
S
D
G
C8734
0.1uF
16V
0.1uF
16V
OPT
R87100
1K
R87094
0
R
8
7
0
2
1
1
0
0
R
8
7
0
2
4
1
0
0
SW8700
SKHMPWE010
1
2
4
3
5
SW8701
SKHMPWE010
1
2
4
3
5
R87018
22
R87017
22
R87022
22
RJP_CTRL0
RJP_CTRL1
RJP_CTRL2
RJP_CTRL3
RJP_CTRL4
/WOL_ON
C8721
10uF
6.3V
6.3V
CEC_CTL
R8728
2K
R8740
2K
R8721
4.7K
R8722
4.7K
R8702
4.7K
R8703
4.7K
R87089
11K
11K
EXT_SPK_MUTE
POWER_ON/OFF2_3
POWER_ON/OFF2_4
+5V_bLAN_PWR
R87103
100K
R87105
22
R87104
22
HPD_CTL
PTC_HPD
R8713
10K
OPT
10K
OPT
+3.3V_NORMAL
+3.3V_NORMAL
+3.3V_NORMAL
+3.3V_NORMAL
+3.3V_NORMAL
+3.3V_NORMAL
+3.3V_NORMAL
+3.3V_NORMAL
+3.3V_NORMAL
+3.3V_NORMAL
R8700
2.2K
UART SW CONTROL B
PTC_RESET
UART SW CONTROL A
PTC_UPDATE
RJP
BLAN CHECK
GND_JIG
GND_JIG
BLAN CHECK
GND_JIG
BLAN CHECK
2011.02.09
xxLT760H-UA
87
PTC
TI PTC
FRAM I2C
To HDMI
LT770H High/MID Power SEQUENCE
POWER_ON/OFF!
POWER_ON/OFF2_1
POWER_ON/OFF2_2
POWER_ON/OFF2_3
POWER_ON/OFF2_4
SOC_RESET
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