LG 52LG65YD-AC (CHASSIS:LB81C) 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.
MODUEL&CTL
LVA_0M
LVB_2P
+3.3V_CI
C302
1000pF
50V
EN_1.3VF
R307
4.7K
FHD&NON-FRC
L302
FRC
LVA_CKP
EN_3.3VF
LVB_0M
LVA_3M
LVA_3P
L301
FRC
R310
1.3K
BIT_SEL
P301
SMAW200-40C
FHD_LVDS_wafer
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
+5V_GENERAL
C301
0.1uF
50V
LVB_4M
L303
FRC
R309
0
OPT
+3.3V_CI
EN_1.3PLL
P302
SMAW200-26C
HD
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
LVB_CKP
R313
1.3K
LVA_4P
+3.3V_VDDP_ST
LVB_3P
+12V
R311
1.3K
LVA_0P
LVB_1M
R306
4.7K
NON-FRC
LVB_3M
LVB_2M
+3.3V_CI
FRC_RESET
P303
SMAW200-13
FRC
1
2
3
4
5
6
7
8
9
10
11
12
13
LVA_CKM
LVB_0P
R305
0
OPT
LVA_4M
R308
0
OPT
LVDS_SEL
LVB_CKM
R302
0
OPT
R303
0
HD
EN_2.5VF
LVA_2P
+15V
LVB_4P
LVA_2M
PANEL_POWER
003:T8;009:K5
EN_1.8VF
LVA_1P
L304
OPT
LVA_1M
R301
0
FRC
R312
1.3K
R304
0
OPT
LVB_1P
R314
0
OPT
SDA_D_TU
R316
0
FRC
SCL_D_TU
R315
0
FRC
PANEL_POWER
003:L19;009:K5
+3.3V_CI
R1189
0
OPT
R1190
0
OPT
R1191
0
OPT
R1192
0
OPT
JP3007
JP3006
JP3005
JP3001
JP3002
JP3003
JP3004
FRAME_SEL
R317
0
OPT
JP3008
C303
100uF
16V
PANEL_POWER DEVIDER
C
2008
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.
TUNER
TU_TS_SYNC
TU_TS_VAL
TU_TS_DATA[0]
TU_TS_CLK
C416
0.1uF
50V
+3.3V_TU
R415
33
C408
47pF
50V
C404
47pF
50V
SDA_D_TU
003:M14;001:H25;001:AB6;001:AM6
SCL_D_TU
003:M14;001:H25;001:AB5;001:AM5
+3.3V_TU
L401
LEMC3225T-6R8M
C421
100uF
16V
C420
100uF
16V
C417
0.1uF
50V
C414
0.1uF
50V
C405
0.1uF
50V
+5V_TU
BOOSTER
+5V_TU
R450
2.2K
R455
10K
C427
100uF
16V
C426
0.01uF
50V
R444
OPT
L402
LEMC3225T-6R8M
Q405
2SA1530A-T112-1R
E
B
C
R402
0
OPT
C423
47pF
50V
OPT
R401
0
AUS_ONLY
R451
OPT
Q404
2SA1530A-T112-1R
E
B
C
C429
0.01uF
50V
R454
220
Q406
2SA1530A-T112-1R
E
B
C
R468
0
TV_CVBS+
+5V_TU
C403
100pF
50V
AUS_ONLY
R443
4.7K
Q403
2SA1530A-T112-1R
E
B
C
R446 470
R449
82
SIF+
+5V_TU
C413
47pF
50V
AUS_ONLY
C412
47pF
50V
AUS_ONLY
R420
47
AUS_ONLY
R419
47
AUS_ONLY
+3.3V_TU
R422 4.7K
OPT
R424 4.7K
OPT
+5V_TU
C402 0.1uF
50V
C401
0.1uF
50V
+1.8V_TU
C419
100uF
16V
C410
0.1uF
50V
C415
0.1uF
50V
C409
0.1uF
50V
C418
100uF
16V
R441
0
R442
0
R440
0
R439
0
GND_1
R435
0
R437
0
R438
0
GND_2
R436
0
R430
0
R432
0
R433
0
GND_3
R431
0
R425
0
R427
0
R428
0
GND_4
R426
0
SCL_A_TU
004:L4;004:R8;001:H26
GND
GND
GND
GND
R452
10K
OPT
+5V_TU
R403
0
AUS_ONLY
C425
4700pF
50V
R445 1K
R448
1K
C428
4700pF
50V
TU_RESET_N
R429
100
+3.3V_TU
R418 4.7K
C411
1000pF
50V
C406
1000pF
50V
C407
1000pF
50V
R434 4.7K
R457
0
C422
0.1uF
50V
OPT
R465
330
R447
0
R461
100
R466
330
Q402
2SC3052
E
B
C
Q407
2SC3052
E
B
C
C424
0.1uF
50V
OPT
LD400
TU401
TDFV-G135D1
AUS_Tuner
EBL42367001
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
SIF
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
R416
33
R417
33
R421
1.2K
R423
1.2K
R462
0
TAIWAN
R463
0
TAIWAN
R467
0
TAIWAN
R469
0
OPT
C432 27pF
TAIWAN
+5V_TU
R458 4.7K
OPT
C431 27pF
TAIWAN
R456 4.7K
OPT
SDA_A_TU
004:K16;004:L3;001:H26
SCL_A_TU
004:K15;004:L4;001:H26
TU_TS_DATA[0]
TU_TS_VAL
TU_TS_SYNC
TU_TS_CLK
R472
4.7K
OPT
SCL_A_TU
Q408
2N7002(F)
G
D
S
Q409
2N7002(F)
G
D
S
+3.3V_TU
R471
0
SCL_A_TU_5V
SDA_A_TU
+5V_TU
SDA_A_TU_5V
R474
2K
R475
2K
R477
5.6K
R470
0
R476
5.6K
R473
4.7K
OPT
R481
0
AUS_ONLY
R480
0
OPT
SCL_A_TU_5V
SDA_A_TU_5V
R479
0
AUS_ONLY
R478
0
OPT
SDA_A_TU
004:L3;004:R8;001:H26
R483
0
TAIWAN
SCL_A_TU_5V
R484
0
OPT
R485
0
TAIWAN
R482
0
OPT
SDA_A_TU_5V
C433
0.1uF
16V
R464
100pF
TAIWAN
50V
R459
100
TAIWAN
R460
100
TAIWAN
TU402
TAFT-H005F
TAIWAN
EBL35311216
14
AFT
13
V-OUT
5
RF_AGC
12
NC_4
11
AS
AS
2
GND_1
19
NC_7
18
NC_6
10
CLOCK
4
NC_2
1
NC_1
17
NC_5
9
DATA
8
GND_2
3
+B[5V]
16
SIF-OUT
7
NC_3
6
TP[33V_OPTION]
15
A-OUT
21
SHIELD
20
NC_8
TP465
TP466
TP470
R412
100
R413
100
R414
100
R404
100
TU401-*1
TDFV-D135F
TAIWAN_TUNER
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
NC_4
16
NC_5
17
NC_6
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
C434
0.1uF
C435
0.1uF
OPT
R453-*1
220
TAIWAN
R453
270
AUS
C430
680pF
50V
OPT
AM_AUDIO
C
2008
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.
COMP1_Pr
005:T6
R505
0
L501
MBW3216-501TF
COMP1_Pb
005:T6
R522
22
R506
0
R524
22
R523
22
R502
0
R504
0
R512
0
R503
0
COMP1_Y
005:T7
COMP_Pb
001:F18
IC500
STMAV340
EAN32724702
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
C506
0.01uF
COMP2_Pr
005:J7
C507
47uF
16V
COMP_Pr
001:F18
+5V_GENERAL
R507
0
R525
22
COMP_Y
001:F18
COMP_SEL
008:E6;008:O10;001:H24
COMP2_Pb
005:J8
COMP2_Y
005:J9
COMP2_Pr
C508
0.1uF
50V
R537
10K
R532
470K
D506
5.6V
CDS3C05GTA
OPT
COMP1_R_IN
R511 75
R516
22
D510
5.6V
CDS3C05GTA
OPT
R514
470K
COMP1_DET
001:W4
R513
470K
R501
10K
D503
30V
CDS3C30GTH
OPT
R533
22
D501
30V
CDS3C30GTH
OPT
D512
5.6V
CDS3C05GTA
OPT
C512
100pF
50V
COMP1_Pb
R508
1K
R528
75
D507
30V
CDS3C30GTH
OPT
COMP2_DET
001:W4
R526
10K
+5V_GENERAL
R509
75
D505
5.6V
CDS3C05GTA
OPT
D502
30V
CDS3C30GTH
OPT
R517
22
D504
5.6V
CDS3C05GTA
OPT
C504
100pF
50V
R521
12K
C505
100pF
50V
D509
30V
CDS3C30GTH
OPT
R515
22
JK501
PPJ209-02
6612J10031A
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
R520
12K
R530 75
R529 75
R510 75
C511
100pF
50V
C503
0.1uF
50V
R536 10K
COMP1_Pr
D508
30V
CDS3C30GTH
OPT
COMP2_R_IN
R538
12K
C510
0.1uF
50V
COMP2_Y
R539
12K
COMP1_L_IN
R534
22
C509
0.1uF
50V
R531
470K
COMP2_L_IN
C501
0.1uF
50V
R518 10K
D511
5.6V
CDS3C05GTA
OPT
C502
0.1uF
50V
R535
22
+5V_GENERAL
JK502
PPJ209-02
6612J10031A
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
R527
1K
R519
10K
COMP1_Y
COMP2_Pb
D520
5.6V
CDS3C05GTA
OPT
JP5015
R548
75
D517
30V
CDS3C30GTH
R543
22
C517
OPT
OPT
P501
KCN-DS-1-0089
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
D513
30V
EEPROM_WP
DSUB_HSYNC
JP5013
+5V_GENERAL
JP5017
R552
22
D519
ENKMC2838-T112
A1
C
A2
C518
0.1uF 50V
R557
10K
R551
4.7K
R556
100
JP5014
DSUB_B
C516
OPT
OPT
R546
75
R544
22
C520
18pF
50V
DSUB_G
JP5016
C519
18pF
50V
R553
10K
D521
5.6V
CDS3C05GTA
OPT
DSUB_R
R550
4.7K
IC501
AT24C02BN-10SU-1.8
0IMMRAL014D
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
D516
30V
CDS3C30GTH
R555 0
OPT
D518
5.6V
CDS3C05GTA
OPT
DSUB_DET
C514
22pF
50V
R542
10K
DDC_SCL/UART_RX
D515
30V
CDS3C30GTH
R547
75
D514 30V
CDS3C30GTH
DSUB_VSYNC
C515
OPT
OPT
R545
22
R558
1K
DDC_SDA/UART_TX
R541
100
R549
10K
C513
22pF
50V
R554
22
R540 100
R7017
100
R7018
100
+5V_ST
JP5020
JP5021
TP551
HIGH:COMP1
COMPONENT-SW
LOW :COMP2
COMPONENT1
COMPONENT2
D-SUB
C
2008
USB DOWN STREAM
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.
+12V_AVOUT
R628
100
R624
4.7K
D605
5.6V
CDS3C05GTA
OPT
R629
0
R623
4.7K
RS232C_TXD
001:H29
+3.3V_VDDP_ST
C603
100pF
50V
+3.3V_VDDP_ST
C602
100pF
50V
JK603
PEJ024-01
6612F00099A
6B
T_TERMINAL2
8
SHIELD_PLATE
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
PC_R_IN
001:G15
RS232C_RXD
R626
100
D604
5.6V
CDS3C05GTA
OPT
D611
30V
CDS3C30GTH
OPT
D610
30V
CDS3C30GTH
OPT
R603
470K
R608
470K
PC_L_IN
001:G15
C617
0.47uF
25V
R613 10K
R612 10K
D612
5.6V
OPT
+5V_USB
D613
5.6V
OPT
C622
10uF
16V
USB_DM
TP619
TP620
TP621
USB_DP
L606
MBW3216-501TF
P601
KCN-DS-1-0088
1
2
3
4
5
6
7
8
9
10
R615
5.1K
R616
5.1K
IC601
MAX3232CDR
EAN41348201
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
R635
51K
R636 100K
JK606
PPJ200-07
3A
2A
4A
2B
5B
JP6018
ZD602
OPT
JP6019
ZD601
OPT
JK604
PPJ204-01
EAG35542201
1
O_SPRING
2
CONTACT
3
U_CAN
SIDE_C_IN
D607
30V
CDS3C30GTH
+5V_GENERAL
R610
1K
R619
75
SIDE_CVBS_IN
D609
30V
C608
100pF
50V
OPT
SIDE_Y_IN
R611
22
L603
D608
30V
CDS3C30GTH
D606
30V
CDS3C30GTH
L601
SIDE_Y/C_DET
C604
100pF
50V
C605
100pF
50V
R614
22
R617
10K
R601
10K
C607
100pF
50V
OPT
R607
75
C601
0.1uF
16V
+5V_GENERAL
R604
470K
R602
10K
L602
R621
12K
SIDE_CVBS_DET
R606
75
SIDE_L_IN
C606
100pF
50V
OPT
SIDE_R_IN
R622
12K
R605
470K
R609
22
R618
10K
R620
0
Q604
2SA1530A-T112-1R
E
B
C
R638
1.5K
Q603
2SA1530A-T112-1R
E
B
C
L609
BG2012B080TF
R639
1K
C627
0.1uF
16V
C632
10uF
AV_L_OUT
R641
1K
R646
47K
R643
47K
Q605
2SC3875S
E
B
C
+12V_AVOUT
006:X19;006:AE16
Q606
2SC3875S
E
B
C
C623
1000pF
50V
C633
0.1uF
16V
OPT
C635
OPT
C625
1000pF
50V
R647
15K
L608
BG2012B080TF
C626
0.1uF
16V
C631
10uF
6.3V
R637
1.5K
D614
5.6V
OPT
R644
15K
AV_R_OUT
D615
5.6V
OPT
R627
75
C615
100uF
16V
+12V_AVOUT
006:AE16;006:AI12
R633
47K
C614
100uF
16V
R630
680
C620
47uF
16V
R634
15K
Q602
2SC3875S
E
B
C
R632
470
C621
0.1uF
50V
Q601
2SA1530A-T112-1R
E
B
C
AV_CVBS_OUT
R649
2K
+12V_AVOUT
006:X19;006:AI12
C630
0.1uF
50V
L610
HH-1M3216-501
+12V
003:Z14;008:Z12;009:A8;009:F12;009:H19
P602
KJA-UB-4-0004
1
2
3
4
5
JK602
PSJ018-01
EAG42206001
1
GND_TER
2
C_LUG_S1
3
C_LUG_L1
6
NC1
7
COM1
8
NO1
9
NC2
10
COM2
11
NO2
12
SHIELD
4
C_LUG_S2
5
C_LUG_L2
JK601
PPJ218-01
EAG42205801
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
C618
470pF
C619
470pF
C610
0.1uF
50V
C612
0.1uF
50V
C613
0.1uF
50V
C616
0.1uF
50V
C609
220pF
50V
C611
220pF
50V
USB_CTL
001:H28
R645
560K
R651 100K
OPT
C634
0.1uF
50V
+5V_USB
+5V
USB_OCD
001:AB4
R650
10K
R625
0
OPT
JP6017
JP6020
JP6021
JP6023
JP6022
C629
100uF
16V
Q607
2SC3875S
E
B
C
Q608
2SC3875S
E
B
C
MUTE_AV_L/R
001:H27
R648
2K
TP660
TP664
TP665
TP666
TP667
IC602
TPS2042ADRG4
3
EN1
2
IN
4
EN2
1
GND
5
OC2
6
OUT2
7
OUT1
8
OC1
ZD606
5.6B
ZD603
5.6B
ZD604
5.6B
ZD607
5.6B
ZD605
5.6B
ZD608
5.6B
C628
4.7uF 35V
C624
4.7uF
35V
+3.3V_VDDP_ST
R652
4.7K
L605
2.2uH
L604
2.2uH
R642
560
R640
560
R631-*1
200
TAIWAN
R631
220
AUS
RS232C
USB
PC-AUDIO
Monitor Out - CVBS
AV-OUT-AUDIO
AV-OUT-CVBS
Side AV
C
2008
Click on the first or last page to see other 52LG65YD-AC (CHASSIS:LB81C) service manuals if exist.