LG 47LV470S (CHASSIS:LD12B) Service Manual ▷ View 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.
R4018
470K
470K
COMP1_Pb
R4017
2.7K
ZD4012
5.1V
L4007
BLM18PG121SN1D
AV2_R_IN
R4021
0
0
ZD4011
5.1V
COMP1_DET
C4023
560pF
50V
560pF
50V
R4029
2.7K
R4019
470K
470K
+3.3V_Normal
D4008
5.6V
AMOTECH
R4023
1K
R4026
75
75
C4013
560pF
50V
560pF
50V
D4012
5.6V
L4006
BLM18PG121SN1D
R4016
75
75
C4020
560pF
50V
560pF
50V
C4016
560pF
50V
560pF
50V
ZD4016
5.1V
AV1_L_IN
D4010
5.6V
AV1_CVBS_IN
AV1_R_IN
ZD4010
5.1V
D4009
5.6V
AMOTECH
COMP1_Y
ZD4015
5.1V
+3.3V_Normal
C4014
560pF
50V
560pF
50V
R4031
1K
ZD4009
5.1V
AV2_L_IN
C4022
560pF
50V
560pF
50V
JK4001
PPJ238-01
5D
[GN2]O-SPRING
6D
[GN2]E-LUG
4D
[GN2]CONTACT
7E
[BL2]E-LUG-S
5E
[BL2]O-SPRING
7F
[RD2]E-LUG-S
5F
[RD2]O-SPRING_1
5G
[WH2]O-SPRING
4H
[RD2]CONTACT
5H
[RD2]O-SPRING_2
6H
[RD2]E-LUG
6A
[YL1]E-LUG
5A
[YL1]O-SPRING
4A
[YL1]CONTACT
5B
[WH1]O-SPRING
4C
[RD1]CONTACT
5C
[RD1]O-SPRING
6C
[RD1]E-LUG
C4015
560pF
50V
560pF
50V
R4028
75
75
R4022
0
0
COMP1_Pr
R4025
470K
R4027
75
75
D4007
5.6V
C4021
560pF
50V
560pF
50V
ZD4013
5.1V
AV1_CVBS_DET
R4024
470K
470K
R4020
0
0
ZD4014
5.1V
D4011
5.6V
C4001
27pF
50V
27pF
50V
C4002
27pF
50V
27pF
50V
C4004
27pF
50V
27pF
50V
L4002
CM2012FR27KT
C4003
27pF
50V
27pF
50V
L4001
CM2012FR27KT
R4032
22
R4033
22
R4007
22
1/10W
5%
5%
R4006
22
1/10W
5%
5%
R4034
10
1%
R4035
10
1%
R4036
10
1%
R4030
10
1%
C4012
47pF
50V
47pF
50V
L4003
CM2012FR10KT
C4005
47pF
50V
47pF
50V
C4006
47pF
50V
47pF
50V
LV7 EU COMP/AV
40
50
BCM35230
COMP/AV JACK PACK
CLOSE TO JUNCTION
COMP_AUDIO_R_IN
COMP_AUDIO_L_IN
FOR EMI
U
S
B
D
O
W
N
S
T
R
E
A
M
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.
SIDE_USB_CTL1
R4102
2.7K
2.7K
D4101
5.6V
CDS3C05HDMI1
C4101
10uF
10V
10uF
10V
+3.3V_Normal
R4101
4.7K
OPT
4.7K
OPT
L4101
MLB-201209-0120P-N2
120-ohm
D4102
5.6V
CDS3C05HDMI1
SIDE_USB_DM
SIDE_USB_DP
SIDE_USB_OCD1
+5V_USB
P
4
1
0
1
3
A
U
0
4
S
-
3
0
5
-
Z
C
-
(
L
G
)
1
2
3
4
5
IC4101
AP2191DSG
3
IN_2
2
IN_1
4
EN
1
GND
5
FLG
6
OUT_1
7
OUT_2
8
NC
C4103
0.1uF
16V
0.1uF
16V
D4103
RCLAMP0502BA
OPT
C4102
100uF
16V
100uF
16V
D4101,D4102
DUAL COMPONENT
1ST : EAH42720601 2ND : EAH60994401
USB
LV7 EU USB
41
50
BCM35230
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.
TXD1N
TXB1N
R4211
10K
10K
BIT_SEL_LOW
TXA3N
TXB3P
TXCCLKN
TXD4P
TXD0P
TXA3P
R4207
33
FRC2
SCL2_3.3V
TXC3N
TXBCLKN
TXB1P
TXD3N
TXC0N
SDA2_3.3V
TXA4P
TXDCLKP
TXACLKN
TXA1P
TXA0P
TXD2N
TXB0N
TXC2N
TXD0N
R4212
3.3K
LVDS_SEL_HIGH
TXA2P
TXA1N
FRC_RESET
C4201
10uF
25V
10uF
25V
OPT
R4208
33
FRC2
TXB2P
TXD2P
TXBCLKP
TXC4P
R4205
33
FRC2
R4213
10K
LVDS_SEL_LOW
R4206
33
FRC2
TXC3P
C4202
1000pF
50V
1000pF
50V
TXD3P
TXDCLKN
TXC1P
TXACLKP
TXC4N
TXCCLKP
TXB3N
TXD4N
TXA2N
TXB0P
TXD1P
C4203
0.1uF
50V
0.1uF
50V
TXA0N
3D_SYNC_RF
TXB2N
TXC1N
TXB4P
+3.3V_Normal
TXC0P
TXA4N
TXB4N
TXC2P
PANEL_VCC
P4201
FI-RE51S-HF-J-R1500
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
P4202
FI-RE41S-HF-J-R1500
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
L4201
MLB-201209-0120P-N2
3D_SYNC_RF
R4214
0
LVDS_10bit
R4215
0
LVDS_10bit
R4216
0
LVDS_10bit
R4217
0
LVDS_10bit
[FHD120Hz LVDS output(51pin+41Pin)]
LVDS_SEL
BIT_SEL
BCM35230
LV7 EU LVDS
42
50
THERMAL
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.
FE_TS_DATA[1]
FE_TS_DATA[4]
FE_TS_DATA[3]
FE_TS_DATA[6]
FE_TS_DATA[7]
FE_TS_DATA[5]
FE_TS_DATA[2]
FE_TS_DATA[0]
C4408
33pF
33pF
OPT
TU_TS_VAL
+3.3V_TU
+3.3V_S2_TU
+5V_TU
R4421
2.2K
BOOSTER
C4413
33pF
33pF
S
C4409
0.1uF
S
S
C4414
0.1uF
16V
S
FE_TS_DATA[0-7]
C4401
0.1uF
16V
0.1uF
16V
OPT
R4419
0
BOOSTER
SCL1_3.3V
TU_RESET
R4423
100K
R4431
1K
OPT
C4405
100pF
50V
100pF
50V
S
+3.3V_TU
C4423
100pF
50V
100pF
50V
TU_CVBS
R4401
51
51
S
TW9910_RESET
C4430
0.1uF
16V
0.1uF
16V
R4436
200
C4410
0.1uF
16V
S
TU_TS_CLK
+3.3V_TU
+1.25V_TU
+5V_TU
L4406
BLM18PG121SN1D
BOOSTER
R4432
1K
OPT
C4418
10uF
10V
10uF
10V
S
+1.8V_TU
R4429
0
OPT
C4406
100pF
50V
100pF
50V
S
R4418
47
R4425
10K
BOOSTER
IC4404
NL17SZ08DFT2G
NONE_T2
3
GND
2
IN_A
4
OUT_Y
1
IN_B
5
VCC
R4403
100
S
R4430
0
C4419
0.1uF
16V
S
+2.5V_TU
+3.3V_TU
Q4402
MMBT3906(NXP)
S
E
B
C
TU_TS_ERR
C4407
100pF
50V
100pF
50V
S
Q4401
MMBT3906(NXP)
BOOSTER
E
B
C
+2.5V_TU
TS_VAL_ERR
R4426
82
82
S
Q4404
MMBT3906(NXP)
E
B
C
LNB_TX
R4439
0
0
NONE_T2
R4427
10K
10K
BOOSTER
C4420
0.1uF
16V
R4435
200
200
Q4405
MMBT3906(NXP)
E
B
C
C4425
0.01uF
50V
0.01uF
50V
BOOSTER
R4422
4.7K
S
C4428
0.1uF
16V
16V
NONE_S
TU_TS_ERR
TU_TS_VAL
TU_SIF
+1.25V_TU
RF_SWITCH_CTL_2
RF_BOOSTER_CTL
R4434
220
Q4403
2SC3052
E
B
C
SDA0_3.3V
R4428
0
NONE_S
+3.3V_S2_LNB
R4424
470
S
C4411
100pF
50V
100pF
50V
Non_S
LNB_OUT
C4412
0.1uF
16V
S
TU_RESET_SUB
C4415
100pF
50V
100pF
50V
S
+5V_TU
ATV_OUT
R4446
0
0
NONE_T2
R4402
75
OPT
C4429
10uF
10V
10uF
10V
C4424
0.1uF
16V
16V
S2_RESET
R4437
1
1
+5V_TU
C4402
18pF
50V
18pF
50V
+3.3V_S2_DE
SDA1_3.3V
C4403
1000pF
50V
S
C4416
100pF
50V
100pF
50V
R4433
220
220
R4420
100
100
R4406
2.2K
2.2K
S
TU_TS_SYNC
+5V_TU
C4404
18pF
50V
18pF
50V
R4445
0
0
T2
SCL0_3.3V
C4427
0.1uF
16V
C4417
0.1uF
16V
Non_S
R4407
0
BOOSTER
R4408
0
S
C4431
0.1uF
0.1uF
16V
OPT
AR4401
47
NON_S
AR4402
47
NON_S
AR4403
47
NON_S
C4439
0.1uF
16V
0.1uF
16V
OPT
TS_VAL_ERR
NIM_TS_CLK
R4414
0
0
R4413
0
0
NIM_VAL_ERR
R4415
0
0
TU_TS_SYNC
TU_TS_CLK
NIM_TS_SYNC
R4438
11K
1%
11K
1%
R4416
20K
1%
20K
1%
+3.3V_TU
R4411
10K
10K
IC4403
AP2132MP-2.5TRG1
EAN61387601
3
VIN
2
EN
4
VCTRL
1
PG
5
NC
6
VOUT
7
ADJ
8
GND
9
[EP]
POWER_ON/OFF2_1
C4434
1uF
1uF
OPT
R4417
11K
1%
11K
1%
C4453
10uF
16V
C4432
10uF
16V
+1.25V_TU
R4412
10K
OPT
+5V_Normal
0.1uF
C4438
OPT
C4445
0.1uF
16V
L4408
MLB-201209-0120P-N2
S
+5V_TU
C4433
0.1uF
0.1uF
16V
C4452
0.1uF
0.1uF
S
C4441
0.1uF
16V
C4447
10uF
10uF
10V
S
L4404
MLB-201209-0120P-N2
S
C4443
0.1uF
0.1uF
OPT
C4440
22uF
16V
+3.3V_S2_DE
C4442
0.1uF
16V
C4444
22uF
16V
C4435
22uF
16V
C4437
0.1uF
16V
0.1uF
16V
S
C4436
10uF
10V
10uF
10V
S
+3.3V_Normal
C4448
10uF
10uF
10V
S
+3.3V_S2_TU
C4449
0.1uF
16V
L4402
MLB-201209-0120P-N2
R4410
1
S
+3.3V_TU
L4403
MLB-201209-0120P-N2
S
+3.3V_TU
+5V_Normal
C4450
0.1uF
0.1uF
S
C4451
0.1uF
0.1uF
S
+3.3V_TU
+1.8V_TU
+3.3V_S2_LNB
C4446
10uF
10uF
10V
S
IF_AGC
IF_P
RF_SWITCH_CTL
IF_N
R4447
0
S
R4448
0
S
L4409
BLM18PG121SN1D
S
C4454
10uF
16V
10uF
16V
OPT
C4455
4700pF
50V
4700pF
50V
OPT
C4456
100uF
16V
100uF
16V
OPT
L4401
MLB-201209-0120P-N2
C4457
10uF
16V
10uF
16V
OPT
C4421
62pF
50V
62pF
50V
Non_S
C4422
62pF
50V
62pF
50V
Non_S
C4458
20pF
50V
Non_S
C4459
20pF
50V
20pF
50V
Non_S
L4410
1uH
Non_S
L4411
Non_S
270nH
L4412
Non_S
270nH
L4411-*1
0
S
L4412-*1
0
S
C4460
10uF
6.3V
10uF
6.3V
S
C4461
1000pF
50V
1000pF
50V
OPT
R4404
22
R4405
22
C4462
10uF
10V S
10uF
10V S
C4463
0.1uF
16V
0.1uF
16V
OPT
D4401
20V
3.0SMCJ20A(suzhougrande)
S
IC4402
AZ1117BH-1.8TRE1
S
1
ADJ/GND
2
OUT
3
IN
AR4401-*1
33
33
S
AR4403-*1
33
33
S
AR4402-*1
33
33
S
R4418-*1
33
33
S
TU4401
TDFR-G136D
HORIZONTAL_T
1
NC_1
2
BST_CNTL
3
+B1[5V]
4
NC_2[RF_AGC]
5
NC_3
6
SCLT
7
SDAT
8
NC_4
9
SIF
10
NC_5
11
VIDEO
12
GND
13
+B2[1.2V]
14
+B3[3.3V]
15
RESET
16
+B4[2.5V]
17
SCL
18
SDA
19
ERR
20
SYNC
21
VALID
22
MCL
23
D0
24
D1
25
D2
26
D3
27
D4
28
D5
29
D6
30
D7
31
SHIELD
C4464
22uF
OPT
C4426
0.1uF
S
TU4401-*1
TDFR-G236D
HORIZONTAL_T2
1
NC_1
2
BST_CNTL
3
+B1[5V]
4
NC_2[RF_AGC]
5
NC_3
6
SCLT
7
SDAT
8
NC_4
9
SIF
10
NC_5
11
VIDEO
12
GND
13
+B2[1.2V]
14
+B3[3.3V]
15
RESET
16
+B4[2.5V]
17
SCL
18
SDA
19
ERR
20
SYNC
21
VALID
22
MCL
23
D0
24
D1
25
D2
26
D3
27
D4
28
D5
29
D6
30
D7
31
SHIELD
TU4402
TDFQ-G001D
HORIZONTAL_S
1
NC_1
2
NC_2
3
NC_3
4
S2_TU[3.3V]
5
NC_4
6
TU_SCL
7
TU_SDA
8
T_1.8V
9
T_SIF
10
NC_5
11
T_CVBS
12
GND_1
13
TD_1.2V
14
T_3.3
15
T_TU_RESET
16
NC_6
17
TD_SCL
18
TD_SDA
19
T/C/S2_ERROR
20
T/C/S2_SYNC
21
T/C/S2_VALID
22
T/C/S2_MCL
23
T/C/S2_D0
24
T/C/S2_D1
25
T/C/S2_D2
26
T/C/S2_D3
27
T/C/S2_D4
28
T/C/S2_D5
29
T/C/S2_D6
30
T/C/S2_D7
31
S2_1.25V
39
SHIELD
32
S2_RESET
33
S2_3.3V
34
S2_F22
35
S2_SCL
36
S2_SDA
37
GND_2
38
S2_LNB
R4449
2.2K
S
IC4401
AP2114H-2.5TRG1
GND
VOUT
VIN
T2_CN_F/NIM_BR: use EU_DVB-T2, China F/NIM, BRZIL F/NIM
H/NIM: use H/NIM(H/NIM, DVB-T/C/S2 combo Tuner)
F/NIM
SCART: use Scart Jack
close to Tuner
Surge protectioin
Non_S: not use DVB-T/C/S2 combo Tuner(use H/NIM and F/NIM)
* DVB-T/C/S2 combo Tuner: DVB-T/C is H/NIM, and DVB-S2 is F/NIM
DUAL COMPONENT
Close to the tuner
close to TUNER
Non_S
TC_F/NIM
Option Table
SCART
Non_S
H/NIM & F/NIM & T/C/S2 Combo Tuner
F/NIM: use F/NIM(EU_T/C, EU_DVB-T2, China)
(Eu,Aisa)
RF_SW_CTL: use RF_SWITCH_CTL
H/NIM
DVB-T/C/S2
CN : use China F/NIM
BOOSTER
H/NIM
SCART
ERROR & VALID PIN
IC4401
EU_BR_F/NIM
H/NIM
F/NIM_T/C
close to TUNER
close to TUNER
TC_F/NIM: use EU_DVB-T/C F/NIM
close to Tuner
Close to Tuner #38 pin
(EU)
EU_BR_F/NIM: use EU_F/NIM and Brazil F/NIM
<EU, China>
close to TUNER
S: use DVB-T/C/S2 combo Tuner
EU_F/NIM
BOOSTER
BOOSTER: use BOOSTER_CTL
SCART
S
OPTION:SCART
RF_SW_CTL
EU_F/NIM: use EU_F/NIM
1ST : T-TJ3940S_XX, 2ND : T-AP2114H_2.5TRG1
BCM35230
LV7 EU TUNER
44
50
Tuner to CI Slot
Vout=0.6*(1+R1/R2)
R2
+1.25V_TU (EU)
R1
Max 1.5A
2A
Max 217mA
close to TUNER
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