Read LG 52LG7000-ZA (CHASSIS:LD88F) Service Manual online
3.3K
R127
+3.3V_CI
470
R144
3.9K
R166
V_SYNC_PC
3.3uH
L100
1000pF
C106
READY
REC_8_CTRL1
ATMEL
AT24C02BN-10SU-1.8
0IMMRAL014D
EEPROM
IC102
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
D119
330
R146
D126
H_SYNC_PC
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.
10K
R101
1000pF
C111
READY
COMP_Y
27K
R152
1K
R143
75
1 %
R109
1000pF
C101
30V
D123
4.7K
R176
GND
220K
R1092
COMP_LIN
D100
R E
A D
Y
0
READY
R1089
P_+5V
47
R133
10K
R1099
30V
D129
75
1 %
R171
1K
R115
1K
R148
0.1uF
16V
C118
75
R174
+3.3V_CI
2SC3052
Q105
E
B
C
D110
READY
2SC3052
Q107
E
B
C
1/10W
4.7K
R191
10K
R188
R188
SCART1_G
2SC3052
Q104
E
B
C
12pF
C129
1000pF
C109
READY
D135
P_+12V
2SC3052
Q106
E
B
C
1000pF
C102
1K
R149
SIDE_RIN
12K
R1098
D111
R E
A D
Y
SCART1_R
30V
D113
0.1uF
C135
COMP_LINK
330
R147
75
1 %
R106
75
1%
R100
75
R163
TUNER_VOUT
10K
R1090
SCART1_ID
2SC3052
Q103
E
B
C
6.8K
R169
R169
D109
R E
A D
Y
1K
R194
30V
D112
75
R168
75
1 %
R108
D131
220K
R116
TV_ROUT
SCART1_VIN
RGB_LINK
D108
READY
1K
R193
100
R1082
27K
R153
SIDE_CVBS_LINK
0
READY
R196
1K
R134
75
R104
TV_LOUT
10K
R1085
DTV/MNT_LOUT
75
1 %
R102
SCART1_RIN
+3.3V_CI
D103
R E
A D
Y
10K
R145
R145
1K
R189
75
1 %
R105
D127
75
1 %
R172
30V
D107
R E
A D
Y
470K
R110
1K
R137
SCART2_LIN
VGA_B
30V
D104
R E
A D
Y
D134
0.1uF
16V
C124
0.1uF
16V
C115
220K
R125
SCART1_LINK
18K
R132
470K
R119
5pF
C105
D128
D118
COMP_RIN
75
1 %
R173
SCART1_B
100
R1081
D124
+3.3V_CI
5pF
C110
SCART2_RIN
30V
D106
R E
A D
Y
SCART1_FB
220uF
16V
C104
REC_8_CTRL2
10uF
16V
C119
47K
R122
470K
R117
SCART2_LINK
D121
75
R111
5pF
C112
10K
R142
R142
+3.3V_CI
30V
D105
R E
A D
Y
D125
DTV/MNT_VOUT
0.1uF
16V
C132
SCART2_ID
D120
18K
R107
100
R1094
220K
R118
+5V
1000pF
C108
READY
5pF
C107
100
R199
1K
R182
+3.3V_CI
330
R112
30V
D102
R E
A D
Y
2SC3052
Q100
E
B
C
1000pF
C100
2SC3052
Q101
E
B
C
470K
R124
COMP_Pb
D122
1000pF
C103
1K
R183
4.7K
R175
3.3uH
L103
+3.3V_CI
6.8K
R170
R170
82
R151
PHILIPS
74HC14D
0IPH741400E
INVERTER
IC103
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
3.9K
R165
220K
R114
30V
D101
R E
A D
Y
12pF
C130
C130
VGA_R
D132
220K
R162
330
R120
VGA_G
3.3uH
L101
0
R198
P_+12V
0.1uF
C134
1K
R150
SCART1_LIN
0.1uF
C133
D133
DTV/MNT_ROUT
220K
R1093
0
R1096
SIDE_LIN
220K
R161
3.3uH
L102
SCART2_VIN
COMP_Pr
3.9K
R1088
3.9K
R1091
47K
R103
470K
R113
0
R159
READY
6.8K
R1083
R1083
6.8K
R1084
R1084
UCOM_TX
0
R190
READY
0.1uF
16V
C131
R E
A D
Y
D114
UART_SEL
R E
A D
Y
D117
DEBUG_RX
R E
A D
Y
D116
DEBUG_TX
ON SEMICONDUCTOR
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
IC101
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
10K
R187
R187
UCOM_RX
R E
A D
Y
D115
TEXAS
MAX3232CDR
EAN41348201
IC104
3
C1-
2
V+
4
C2+
1
C1+
6
V-
5
C2-
7
DOUT2
8
RIN2
9
ROUT2
10
DIN2
11
DIN1
12
ROUT1
13
RIN1
14
DOUT1
15
GND
16
VCC
10K
R164
R164
1K
R167
10K
R1095
R1095
1K
R1087
100
R154
100
R158
100
R156
100
R155
0.1uF
C123
0.1uF
C121
0.1uF
C122
0.1uF
C120
100
R177
100
R178
100
R179
100
R180
100
R181
KCN-DS-1-0089
P101
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
10K
R197
R197
KCN-DS-1-0088
P100
1
2
3
4
5
6
7
8
9
10
0
R1080
P_+5V
D_SUB_SCL
D_SUB_SDA
1K
R128
1K
R123
1K
R126
1K
R131
22
R184
22
R185
22
R186
4.7pF
READY
C126
4.7pF
READY
C127
4.7pF
READY
C128
0
R1079
4.7pF
C136
READY
PPJ218-01
JK103
5C
[RD]CONTACT
2C
[RD]U_CAN
4C
[RD]O_SPRING
2B
[WH]U_CAN
3B
[WH]C_LUG
2A
[YL]U_CAN
5A
[YL]CONTACT
4A
[YL]O_SPRING
Gprobe_MT8280Debug_RX
Gprobe_MT8280Debug_TX
KDS184
D137
A2
C
A1
2SA1530A-T112-1R
Q102
E
B
C
D138
SIDE_S_SW
75
1 %
R157
0
R130
4.7K
R129
D140
75
1 %
R195
D139
SIDE_CIN
SIDE_YIN/SIDE_VIN
+3.3V_CI
PSJ018-01
JK105
1
GND_TER
2
C_LUG_S1
3
C_LUG_L1
6
NC1
7
C
OM1
8
NO1
9
NC2
1
0
COM2
1
1
NO2
12
SHIELD
4
C_LUG_S2
5
C_LUG_L2
PPJ209-03
JK102
4
A
[GN]CONTACT
2A
[GN]1P_CAN
3A
[GN]O_SPRING
2
B
[BL]1P_CAN
5B
[BL]C_LUG_L
2
C
[RD]1P_CAN1
5C
[RD]C_LUG_L
2
D
[WH]1P_CAN
5D
[WH]C_LUG_L
2
E
[RD]1P_CAN2
4E
[RD]CONTACT
3
E
[RD]O_SPRING
JP1
JP2
JP3
JP4
JP5
JP6
JP7
JP8
JP9
JP10
JP11
JP12
JP13
JP14
JP15
JP16
JP17
JP18
JP19
JP20
JP21
JP22
JP23
JP24
JP25
JP26
JP27
JP28
JP29
JP30
JP31
JP32
JP33
JP34
JP35
JP36
JP37
JP38
JP39
JP40
JP41
PSC003-03
JK100
1
AUDIO_R_OUT
2
AUDIO_R_IN
3
AUDIO_L_OUT
4
AUDIO_GND
5
B_GND
6
AUDIO_L_IN
7
B_OUT
8
ID
9
G_GND
10
D2B_IN
11
G_OUT
12
D2B_OUT
13
RED_GND
14
RGB_GND
15
R_OUT
16
RGB_IO
17
SYNC_GND1
18
SYNC_GND2
19
SYNC_OUT
20
SYNC_IN
21
COM_GND
22
SHIELD
PSC003-03
JK101
1
AUDIO_R_OUT
2
AUDIO_R_IN
3
AUDIO_L_OUT
4
AUDIO_GND
5
B_GND
6
AUDIO_L_IN
7
B_OUT
8
ID
9
G_GND
10
D2B_IN
11
G_OUT
12
D2B_OUT
13
RED_GND
14
RGB_GND
15
R_OUT
16
RGB_IO
17
SYNC_GND1
18
SYNC_GND2
19
SYNC_OUT
20
SYNC_IN
21
COM_GND
22
SHIELD
JP63
JP64
JP81
JP82
R O
H M
RTR030P02
Q108
S
D
G
+3.3V_STBY
1uF
C137
47K
R9001
2SC3052
Q109
E
B
C
0.1uF
C125
DEEP_STAND_BY
4.7K
R1135
DS_HS
DS_VS
D_SUB_SCL
D_SUB_SDA
Full SCART 1
Half SCART 2
Rear AV3
5.19V / 10.91V_1Kohm(LOAD)
[SCART PIN8]
4.89V / 9.09V_120ohm(LOAD)
Y
R
Pr
Pb
L
COMPONENT
9.G_GND
3.BLU
7.GNC
4.NC
5.DDC_GND
11.RGB Input
12.SDA
13.HSYNC
2.GRN
1.RED
11.GND
14.VSYNC
15.SCL
8.B_GND
6.SYNC_GND
10.R_GND
PCB No : EAX43060102(1)
Model : LG70
ATN + FRC one Board
470uF E-Cap CST improvement
1 : Data carrier detect
2 : RX
3 : TX
4 : DTR(Data terminal ready
5 : GND
6 : DSR(Data set ready)
7 : RTS(Request to send)
8 : CTS(Clear to send)
9 : RI(Ring indicator)
RS-232C Input
[DTV Vout 6dB TR AMP]
[PC SYNC]
For Deep stand By
Active Low When Deep stand by mode
Default High
SCHEMATIC DIAGRAM
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