LG 42LG350H (CHASSIS:LD85F) 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.
PANEL_POWER
1000pF
50V
C401
0 . 1 u F
50V
C400
1000pF
50V
50V
C409
KEY2
100 1%
R419
+3.3V_VDDP_ST
1000pF
50V
C404
3.3K
R423
LED_RED
KEY1
0 . 1 u F
50V
50V
C403
IR_MST
100 1%
R420
100pF
50V
C408
0 . 1 u F
50V
50V
C406
OPT
R422
+3.3V_VDDP_ST
LED_BLUE
3.3K
R421
0 . 1 u F
50V
C410
1000pF
50V
C411
+5V_ST
1.3K
R407
1.3K
R408
1.3K
R433
1.3K
R434
12505WS-08A00
P405
1
2
3
4
5
6
7
8
9
BG2012B080TF
L403
BG2012B080TF
L405
BG2012B080TF
L404
BG2012B080TF
L406
BG2012B080TF
L407
ADMC5M03200L_AMODIODE
5.6V
D402
ADMC5M03200L_AMODIODE
5.6V
D401
ADMC5M03200L_AMODIODE
5.6V
D400
CB3216PA501E
L410
+3.3V_CI
LVB_3P
LVB_1P
LVB_CKP
LVB_2P
LVB_CKM
LVA_0M
LVB_3M
LVA_4M
LVA_1M
LVA_2M
LVA_CKM
LVB_3P
LVB_2P
LVB_0M
LVB_CKP
LVB_3M
LVB_0P
LVA_4P
LVB_1M
LVB_4P
LVA_3P
LVA_1P
BIT_SEL
LVB_4M
LVA_0P
LVA_2P
LVB_2M
LVB_0P
LVB_1P
LVB_CKM
LVDS_SEL_GPIO
LVB_2M
LVB_0M
LVA_3M
LVA_CKP
LVB_1M
0
R401
0
R402
OPT
0
R403
0
R404
220uF
16V
C415
22
OPT
R426
0
VESA
R425
OPC_OUT
1:V17;8:M8
PWM_DIM
0
R436
OPT
510
OPT
R437
3.3K
OPT
R424
22
OPT R429
22
OPT
R430
0
OPT
R435
TF05-51S
FFC_FHD
P401
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
FF10001-30
FFC_HD
P400
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
CB3216UA121
L402
9.1K
10BIT
R427
3.3K
8BIT
R428
+3.3V_CI
4 1 3
Module
Module&Ctl
IR & LED
CONTROL
X
X
O
JEIDA
R425
R424
VESA
( 3 . 3 k )
V4 OPTION
OPC_OUTPUT
E x t e r n a l V B R
xxLG350H-TA
2 0 0 9 . 1 . 2 3
UEL&CTL
0 . 1 u F
50V
C515
+3.3V_TU
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.
33
R503
33
R514
33
R504
OPT
33
R505
OPT
33
R506
OPT
33
R507
OPT
33
R508
OPT
33
R509
OPT
33
R510
OPT
33
R511
33
R512
33
R513
47pF
50V
50V
C507
47pF
50V
50V
C503
SDA_D_TU
SCL_D_TU
+3.3V_TU
LEMC3225T-6R8M
L500
100uF
16V
16V
C520
100uF
16V
16V
C519
0 . 1 u F
50V
50V
C516
0 . 1 u F
50V
50V
C513
0 . 1 u F
50V
50V
C504
+5V_TU
0 . 1 u F
50V
50V
C530
+5V
BOOSTER
+5V_TU
2.2K
R568
10K
R577
100uF
16V
16V
C531
0 . 0 1 u F
50V
50V
C529
R565
OPT
OPT
LEMC3225T-6R8M
L501
0
R501
AGC_SPEED
10K
R545
47pF
50V
50V
C522
0
R500
R558
OPT
270
R559
270pF
50V
50V
C528
OPT
TV_CVBS+
+5V_TU_A
100pF
50V
C502
4.7K
R542
470
R544
82
R556
SIF+
+5V_TU_A
47pF
50V
50V
C512
47pF
50V
50V
C511
+3.3V_TU
+5V_TU
0 . 1 u F
50V
50V
C501
0 . 1 u F 50V
C500
+1.8V_TU
100uF
16V
C518
0 . 1 u F
50V
C509
0 . 1 u F
50V
C514
0 . 1 u F
50V
C508
100uF
16V
C517
SCL_A_TU
SDA_A_TU
10K
R573
OPT
TU_RESET_N
100
R528
+3.3V_TU
4.7K
R515
1000pF
50V
C510
1000pF
50V
50V
C505
1000pF
50V
50V
C506
4.7K
R533
0
R563
0 . 1 u F
50V
50V
C521
OPT
0
R567
TU_TS_CLK,TU_TS_DATA[0],TU_TS_SYNC,TU_TS_VAL
TPS2042ADRG4
IC500
3
EN1
2
IN
4
EN2
1
GND
5
OC2
6
OUT2
7
OUT1
8
OC1
560K
R564
OPT
USB_CTL
USB_OCD
+5V_USB
51K
R574
OPT
100K
R575
OPT
2SC3052
Q506
E
B
C
2SC3052
Q500
E
B
C
0 . 1 u F
50V
50V
C523
270
R560
LEMC3225T-6R8M
L508
+5V_TU_A
TDFV-G135D1
TU500
SET-USE
1
ANT[5V]
2
BB[CTR]
3
GND_1
4
+B[5V]
5
NC_1
6
RF_AGC
7
TP[VT]
8
NC_2
9
GND_2
10
SDA_T
11
SCL_T
12
AIF_1
13
AIF_2
14
NC_3
15
VIDEO
16
AUDIO
17
S I F
18
SDA
19
SCL
20
RST
21
3.3V
22
1.8V
23
ERR
24
MCL
25
D7
26
D6
27
D5
28
D4
29
D3
30
D2
31
D1
35
SHIELD
32
D0
33
VAL
34
SYNC
4.7K
R521
4.7K
R523
47
R519
47
R518
33
R516
33
R517
1.2K
R520
1.2K
R522
2SA1530A-T112-1R
Q502
E
B
C
2SA1530A-T112-1R
Q503
E
B
C
2SA1530A-T112-1R
Q504
E
B
C
4 . 7 u F
16V
16V
C527
0
R586
OPT
GND
0
R596
OPT
0
R588
OPT
0
R587
GND_TU
0
R561
OPT
0
R592
OPT
0
R598
OPT
0
R589
OPT
0
R597
OPT
0
R595
0
R590
OPT
0
R562
OPT
0
R591
OPT
GND_TU
GND
0
R593
OPT
GND_TU
0
R594
OPT
GND
GND_TU
GND
0
R578
GND_TU
10uF
16V
16V
C525
TDFV-G135D1
TU500-*1
SKD-NOT_USE
1
ANT[5V]
2
BB[CTR]
3
GND_1
4
+B[5V]
5
NC_1
6
RF_AGC
7
TP[VT]
8
NC_2
9
GND_2
10
SDA_T
11
SCL_T
12
AIF_1
13
AIF_2
14
NC_3
15
VIDEO
16
AUDIO
17
S I F
18
SDA
19
SCL
20
RST
21
3.3V
22
1.8V
23
ERR
24
MCL
25
D7
26
D6
27
D5
28
D4
29
D3
30
D2
31
D1
35
SHIELD
32
D0
33
VAL
34
SYNC
TU_TS_SYNC
TU_TS_VAL
TU_TS_DATA[0]
TU_TS_CLK
Tuner
OPTION : RF AGC
USE ONLY FOR SECAM
5 1 3
USB 5V
xxLG350H-TA
2 0 0 9 . 1 . 2 3
UNER
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.
SC_L_IN
OPT
C628
330pF
50V
C630
100uF
16V
C622
OPT
C645
DTV/TV_OUT
47uF
16V
C633
560pF
50V
50V
C639
47K
R664
10uF
6.3V
6.3V
C640
SCART_AUDIO_OUT
10K
R652
0 . 1 u F
16V
16V
OPT
C643
OPT
C624
470
R647
SC_ID
470
R656
47K
R661
12K
R660
2SC3052
Q611
E
B
C
SC_R_IN
SCART_DET
0 . 1 u F
16V
16V
C644
OPT
470K
R645
15K
R665
1K
R670
+5V_GENERAL
75
1%
1%
R648
10K
R667
P_12V
2SC3052
Q608
E
B
C
SC_CVBS_IN
330pF
50V
50V
C632
MNT_L_OUT
470
R659
22uF
16V
C631
1K
R658
560pF
50V
50V
C637
47K
R649
12K
R657
75
R641
10uF
6.3V
6.3V
C642
SCART_AUDIO_OUT
220pF
50V
50V
C641
OPT
2SC3052
Q612
E
B
C
470K
R643
1000pF
50V
50V
C623
1000pF
50V
C626
1.5K
R653
MNT_R_OUT
1.5K
R651
P_12V
22uF
16V
C625
1K
R655
15K
R662
56K
R666
10K
R654
15K
R650
SC_R
10
R605
75
1%
R601
75
1%
1%
R610
22
R623
SC_FB
SC_G
75
1%
R602
10
R606
SC_B
75
1%
1%
R603
10
R607
2SA1530A-T112-1R
Q610
E
B
C
2SA1530A-T112-1R
Q609
E
B
C
2SA1530A-T112-1R
Q607
E
B
C
11K
R669
56pF
50V
C635
0
R671
BG2012B080TF
L606
SCART_AUDIO_OUT
BG2012B080TF
L607
SCART_AUDIO_OUT
BG2012B080TF
L608
BG2012B080TF
L609
30V
OPT
D611
30V
OPT
D603
30V
OPT
D604
30V
OPT
D609
30V
OPT
D602
10uF
25V
C634
10uF
25V
25V
C646
0 . 1 u F
50V
C638
0 . 1 u F
50V
C636
0 . 1 u F
50V
50V
C629
0 . 1 u F
50V
50V
C627
5.6V
OPT
OPT
D615
5.6V
OPT
D616
5.6V
OPT
OPT
D613
5.6V
OPT
OPT
D612
5.6V
OPT
OPT
D614
CB3216PA501E
L612
SCART_AUDIO_OUT
CB3216PA501E
L610
0
R834
PSC003-05
JK601
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
23
23
22
22
120
R646
390
R644
SCART
6 1 3
xxLG350H-TA
2 0 0 9 . 1 . 2 3
SCART
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.
100
R764
4.7K
R756
75
R750
10K
R746
COMP_Y
COMP_Pr
0
R766
COMP_Pb
75
R728
DSUB_VSYNC
DSUB_HSYNC
22pF
50V
C720
AT24C02BN-10SU-1.8
IC701
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
75
R726
22pF
50V
C719
OPT
C723
+5V_ST
4.7K
R755
RS232C_TXD
+3.3V_VDDP_ST
EEPROM_WP
100pF
50V
C718
100
R763
P P J 2 0 9 - 0 2
JK701
4A
[GN]CONTACT
2A
[GN]1P_CAN
3A
[GN]O_SPRING
2B
[BL]1P_CAN
5B
[BL]C_LUG_L
2C
[RD]1P_CAN1
5C
[RD]C_LUG_L
2D
[WH]1P_CAN
5D
[WH]C_LUG_L
2E
[RD]1P_CAN2
4E
[RD]CONTACT
3E
[RD]O_SPRING
22
R735
470K
R730
+3.3V_VDDP_ST
22
R747
470K
R729
0 . 1 u F
C724
100pF
50V
C717
22
R734
P E J 0 2 4 - 0 1 JK702
6B
T_TERMINAL2
8
SHIELD_PLATE
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
10K
R752
COMP_R_IN
100pF
50V
C716
22
R748
PC_R_IN
RS232C_RXD
100pF
50V
C715
10K
R759
OPT
75
R753
22
R749
COMP_L_IN
100
R761
DSUB_R
DDC_SCL/UART_RX
CDS3C30GTH
30V
OPT
D727
CDS3C30GTH
30V
OPT
D726
470K
R731
470K
R732
PC_L_IN
75
R751
18pF
50V
C725
18pF
50V
C726
75
R727
DSUB_G
OPT
C722
22
R733
OPT
C721
DSUB_B
DDC_SDA/UART_TX
100
R744
100
R745
1uF
C703
+5V_GENERAL
RGB_SW
SC_R
B+
1uF
C700
1uF
C702
DSUB_G
1uF
C701
SC_B
R+
DSUB_B
1uF
C704
SC_G
1uF
C705
0 . 0 1 u F
50V
C709
G+
47uF
16V
C710
DSUB_R
10K
R737
10K
R736
10K
R739
10K
R738
12K
R742
12K
R743
22
R722
22
R720
22
R721
22
R719
DSUB_DET
0
R762
OPT
22
R760
22
R758
4.7K
R757
4.7K
R754
0 . 1 u F
50V
C714
0 . 1 u F
50V
C713
0 . 1 u F
50V
C712
1K
R725
COMP_DET
+5V_GENERAL
10K
R765
1K
R767
STMAV340
IC700
3
2B
2
1C
4
2C
1
1B
6
3C
5
3B
7
4B
8
4C
9
GND
10
4A
11
3A
12
2A
13
1A
14
S
15
OE_N
16
VCC
0
R701
SIDE_CVBS_DET
SIDE_L_IN
0 . 1 u F
16V
16V
C706
SIDE_R_IN
+5V_USB
10uF
16V
16V
C711
USB_DM
USB_DP
SIDE_CVBS_IN
75
R713
+5V_GENERAL
+5V_GENERAL
10K
R712
10K
R724
470K
R708
10K
R716
12K
R715
ENKMC2838-T112
D723
A1
C
A2
KCN-DS-1-0089
JK703
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
KCN-DS-1-0088
JK704
1
2
3
4
5
6
7
8
9
10
5.1K
R740
5.1K
R741
1K
R703
470K
R705
10K
R709
12K
R718
560pF
C707
560pF
C732
OPT
C733
OPT
C734
330pF
C708
330pF
50V
50V
C737
330pF
50V
50V
C736
OPT
330pF
50V
50V
C735
OPT
EXT_12V
EXT_5V
0
R768
OPT_EXT12V_7P
0
R769
EXT12V_9P
IROUT_RS232
EXT_OUT_R
1uF 10V
OPT
C738
EXT_OUT_L
0
R770
0
R771
P E J 0 2 4 - 0 1
JK600
6B
T_TERMINAL2
8
SHIELD_PLATE
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
1uF 10V
OPT
C739
P P J 2 1 8 - 0 1
JK618
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
MAX3232CDR
IC702
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
0 . 1 u F
16V
C730
0 . 1 u F
16V
16V
C727
0 . 1 u F
16V
16V
C731
0 . 1 u F
16V
C729
0 . 1 u F
16V
16V
C728
BG2012B080TF
L702
BG2012B080TF
L703
CDS3C30GTH
30V
OPT
D710
CDS3C30GTH
30V
D719
CDS3C30GTH
30V
D706
CDS3C30GTH
30V
D718
CDS3C30GTH
30V
OPT
D711
CDS3C30GTH
30V
D709
OPT
CDS3C30GTH
30V
D720
30V
D717
CDS3C30GTH
30V
D721
1K
R772
0
R704
3.3uH
L704
ADMC5M03200L_AMODIODE
5.6V
D701
ADMC5M03200L_AMODIODE
5.6V
OPT
D724
ADMC5M03200L_AMODIODE
5.6V
OPT
D715
ADMC5M03200L_AMODIODE
5.6V
OPT
D713
ADMC5M03200L_AMODIODE
5.6V
5.6V
OPT
D714
ADMC5M03200L_AMODIODE
5.6V
OPT
D716
ADMC5M03200L_AMODIODE
5.6V
D700
ADMC5M03200L_AMODIO
5.6V
OPT
D725
ADMC5M03200L_AMODIODE
5.6V
OPT
D707
ADMC5M03200L_AMODIODE
5.6V
OPT
D712
ADMC5M03200L_AMODIODE
5.6V
D705
ADMC5M03200L_AMODIODE
5.6V
5.6V
OPT
D708
ADMC5M03200L_AMODIODE
5.6V
OPT
D722
CB3216PA501E
L700
CB3216PA501E
L701
USB DOWN STREAM
KJA-UB-4-0004
JK700
1
2
3
4
5
1K
R773
OPT
ZD700
SPDIF_OUT
Fiber Optic
JST1223-001
JK705
1
GND
2
VCC
3
VINPUT
4
FIX_POLE
0 . 1 u F
50V
C740
+5V_GENERAL
I n t e r f a c e
COMPONENT
PC(RGB)
Analog RGB SwitchING
RS232C
7 1 3
PC AUDIO
Side AV
USB
EXT_SPEAKER
SPDIF OPTIC JACK
xxLG350H-TA
2 0 0 9 . 1 . 2 3
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