LG 52LG7500-ZB (CHASSIS:LD86F) Service Manual ▷ View online
Fi b e r Op t i c
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.
L460
FI-C2012-682KJT
IC462
MC33078DR2G
3
INPUT1+
2
INPUT1-
4
VEE
1
OUTPUT1
5
INPUT2+
6
INPUT2-
7
OUTPUT2
8
VCC
LRCLK_DTV
HDMI_SCK
LRCLK_MUX
3_STATE_BUFFER
IC410
TC74LCX157FT
3
2
4
1
6
5
7
89
10
11
12
13
14
15
16
HDMI_LRCH
SCLK_DTV
HDMI_LRCK
SCLK_MUX
PCMDATA_DTV
+3.3V
PCMDATA_MUX
R403
10K
Q402
2SC3875S 1
E
2
B
3 C
R407
12K
Q401
2SC3875S
1
E
2 B
3
C
Q400
2SC3875S
1
E
2
B
3
C
GND
Q460
2SA1504S
E
B
C
GND
GND
P_12V
5.0V
5.0V
SPDIF_OUT
R483
1K
ZD400
READY
R484
27
5.0V
C480
0.1uF
C474
0.1uF
C430 0.1uF
C469
0.1uF
16V
R414
1K
R415
1K
R448 100
R480
100
R446 100
R475
5.1K
C468
0.01uF
R422
4.7K
R481
0
R479
0
R416
0
R417
0
C434
READY
C433
READY
IC461
MC33078DR2G
3
INPUT1+
2
INPUT1-
4
VEE
1
OUTPUT1
5
INPUT2+
6
INPUT2-
7
OUTPUT2
8
VCC
C476
10uF
16V
C475
47uF
16V
R476
2K
C451
0.1uF
OPT
C452
0.1uF
OPT
C453
0.1uF
OPT
C454
0.1uF
OPT
JK400
JST1223-001
1
GND
2
VCC
3
VINPUT
4
FIX_POLE
C477
10uF
16V
+9V_CXA2069
AUDANA_GND
AUDANA_GND
AUDANA_GND
AUDANA_GND
AUDANA_GND
AUDANA_GND
R485
0
R498
0
AUDANA_GND
R499
0
AUDANA_GND
SPDIF_STI_OUT
SPDIF_MSP_OUT
SPDIF_OUT
SP_CVBS
CVBS
PIO2B6
PIO2B7
REC_8
AUD_ANAL-
AUD_ANAL+
AUD_ANAR+
AUD_ANAR-
AUD_ANA_VBG
DTV_ROUT
DTV_LOUT
JP400
JP401
TP400
TP401
TP402
TP403
TP404
TP405
TP418
TP419
TP420
TP421
TP422
TP423
TP424
TP425
TP426
TP427
R472
3.3K
R473
3.3K
R469
3.3K
R468
3.3K
R489
1K
R487
1K
R486
1K
R488
1K
R461
27
R463
27
R464
27
R462
27
L400
FI-C2012-682KJT
TP428
TP429
TP430
TP431
TP432
TP433
TP434
TP435
TP436
TP437
TP441
TP442
TP443
TP444
TP445
TP446
TP447
TP448
TP449
TP450
TP451
R438
0
R441
100
R439
100
C435
READY
C432
READY
C465
1000pF
C464
1000pF
C467
1000pF
C466
1000pF
TP406
TP407
TP408
4Y
1Y
VCC
3A
3Y
ST
LOW
1A
SEL
GND
1B
2A
2B
I2S SWITCHING (DTV&HDMI)
HIGH
4A
3B
4B
2Y
TO MSP
SPDIF OPTIC JACK
OPTION
[SCART PIN8]
5.19V / 10.91V_1Kohm(LOAD)
4.89V / 9.09V_120ohm(LOAD)
% MUST BE PLACED NEAR IC100
4. I2S & ETC
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.
L504
10uH
L502
HH-1M3216-501
IC511
SC2595STR
3
V_SENSE
2
GND
4
VREF
1
NC
5
VDDQ
6
AVCC
7
PVCC
8
VTT
IC510
SC2595STR
3
V_SENSE
2
GND
4
VREF
1
NC
5
VDDQ
6
AVCC
7
PVCC
8
VTT
C569
1000pF
R560
12K
R559
15K
1%
L500
HH-1M3216-501
CI_EN
GND
5.0V_CI
GND
GND
GND
GND
+3.3V
1.8V_HDMI
C597
100uF
16V
L507
HH-1M3216-501
V_DDR_VTT
V_DDR_VREF
DDR_VREF
DDR_VTT
+2.6V_V_DDR
+2.6V_VIDEO
+2.6V_SYS
+3.3V
+1.0V_STi7100
+3.3V
+2.6V_DDR
+2.6V_V_DDR
+2.6V_STi7100
+2.6V_SATA
+1.0V_SATA
1.8V_AMP
C596
100uF
16V
C525
0.1uF
C520
0.1uF
C516 0.1uF
C561
0.1uF
0.1uF
C594
C521
0.1uF
0.1uF
C595
C573
0.1uF
C545
0.1uF
C553
0.01uF
C571
0.01uF
C555
0.01uF
C568
0.01uF
+2.6V_SYS
+2.6V_VIDEO
C562
220uF
16V
C574
220uF
16V
+2.6V_DDR
C598
0.1uF
R562
10
C599
1000pF
50V
R570
10K
R571
91K
OPT
R572
82.5K
1/10W
1%
+3.3V
R576
10K
C536
0.1uF
16V
C538
0.1uF
16V
GND
C582
0.1uF
16V
C584
0.1uF
16V
R561
10K
+3.3V
GND
IC515
SC4215ISTRT
3
VIN
2
EN
4
NC_2
1
NC_1
5
NC_3
6
VO
7
ADJ
8
GND
IC516
SC4215ISTRT
3
VIN
2
EN
4
NC_2
1
NC_1
5
NC_3
6
VO
7
ADJ
8
GND
IC502
SC4215ISTRT
3
VIN
2
EN
4
NC_2
1
NC_1
5
NC_3
6
VO
7
ADJ
8
GND
GND
GND
GND
C572
330uF 4V
C560
330uF
4V
C522
100uF
16V
TP508
TP510
TP511
TP513
TP514
TP515
TP516
TP517
TP518
TP519
TP520
TP521
TP522
TP523
TP524
TP525
TP526
TP527
TP530
TP531
TP534
TP535
TP536
TP537
TP538
TP539
C539
100uF 16V
C580
330uF
4V
C566
330uF
4V
C583
100uF
16V
C523
100uF
16V
C537
100uF
16V
R575
47K
R565
47K
L508
HB-1M1608-501JT
R569
1.21K
1%
R574
105K
R577
105K
R563
1K
R573
1K
C558 100uF 16V
GND
R558
4.7K
1/10W
1%
IC513
BD9132MUV
1
SW_1
3
SW_3
7
PVCC_2
9
BST
10
VCC
11
GND
12
ADJ
13
ITH
14
NC_1
15
NC_2
16
NC_3
17
EN
18
PGND_1
19
PGND_2
20
PGND_3
5
SW_5
8
PVCC_3
6
PVCC_1
4
SW_4
2
SW_2
C510 0.1uF
GND
C511 0.1uF
GND
IC500
AZ1117H-1.8TRE1(EH13A)
2
OUTPUT
3
INPUT
1
ADJ/GND
R501
13K
1%
C517 100uF 16V
C509 0.1uF 16V
C549 100uF 16V
GND
L510 15uH
GND
C528 100uF 16V
D500
40V
MBRS340
GND
C502
0.01uF
+8V_MSP4450
C503 0.01uF
C501 1000pF 50V
GND
GND
IC505
KIA78R33F
1
VIN
2
VC
3
VOUT
4
NC
5
GND1
6
GND2
IC501
AZ1117H-1.8TRE1(EH13A)
2
OUTPUT
3
INPUT
1
ADJ/GND
GND
TUNER_3.3V_ON
R504
120K
C505 100uF 16V
TP506
GND
1.8V_TUNER
IC504
MP2355DN-LF-Z
3
VIN
2
BST
4
LX
1
SS
5
GND
6
FB
7
COMP
8
RUN
GND
C532 0.1uF
C551 0.1uF 16V
GND
C530 0.1uF
C524 0.1uF 16V
C507 100uF 16V
GND
GND
C508 0.1uF 16V
GND
GND
TP502
C506 100uF 16V
C550 0.1uF 16V
GND
5.0V
3.3V_TUNER
GND
C526 100uF 16V
+5VST_1
R578
100
GND
GND
GND
C518 0.1uF 16V
R502
22K
1%
+3.3V
GND
+5VST_3
Q502
G
D
S
TP509
R567
4.7K
Q504
2SC3875S
E
B
C
GND
+5VST_3
R564
1K
C542
0.1uF
Q503
2SC3875S
E
B
C
TP507
R557
4.7K
GND
R566
1K
5.0V_MSP
C543
0.1uF
Q501
G
D
S
TP540
L505
HH-1M3216-501
C544
0.1uF
GND
IC506
KIA78R05F
1
VIN
2
VC
3
VOUT
4
NC
5
GND1
6
GND2
R579
100
TUNER_3.3V_ON
GND
GND
GND
+5VST_3
C591 220uF 16V
TUNER_3.3V_ON
L501
UBW2012-121F
L503
UBW2012-121F
+3.3V
GND
R505
4.7K
TP541
Q507
G
D
S
TP542
R507
1K
C512
0.1uF
Q508
2SC3875S
E
B
C
GND
C513
0.1uF
3.3V_ON
R503
10K
1/10W
5%
+1.1V_STi_ON
R584
10K
1/10W
5%
R585
10K
1/10W
5%
READY
C592
1000pF
50V
READY
R582
33K
R583
33K
+3.3V
Q506 2SC3875S
E
B
C
+2.5V_STi_ON
+3.3V
R581
10K
Q505 2SC3875S
E
B
C
R580
10K
+2.5V_STi_ON_REG
+2.5V_STi_ON
+2.5V_STi_ON_REG
+2.5V_STi_ON_REG
RL_ON/PWR_ONOFF_2
R586
100
1/10W
5%
+3.3V_STi
L509
HH-1M3216-501
C514
100uF 16V
C515 0.1uF
R556
0
R506
0
R568
0
C504
22uF
16V
C519
22uF
16V
C535
22uF
16V
C575
22uF
16V
C579
22uF
16V
C581
22uF
16V
C593
22uF
16V
TP544
TP545
TP546
TP547
TP548
TP549
TP550
TP551
TP552
TP553
TP554
TP555
TP556
TP557
TP558
TP559
TP560
TP561
TP562
TP563
TP564
TP565
TP566
TP567
TP568
TP569
TP570
TP571
TP572
TP573
TP574
TP575
TP576
TP577
TP578
TP579
TP580
TP581
TP582
TP583
TP584
TP585
TP586
TP587
TP588
TP589
TP590
TP591
TP592
TP593
TP594
TP595
TP596
TP597
TP598
TP599
TP70
TP55
TP51
TP52
TP53
TP54
TP83
TP56
TP57
TP58
TP59
TP60
TP61
TP62
TP63
TP64
TP65
TP66
TP67
TP68
TP69
TP501
TP71
TP72
TP73
TP74
TP75
TP76
TP77
TP78
TP79
TP80
TP81
TP84
TP82
TP86
TP505
TP49
TP48
TP47
TP46
TP45
TP44
TP43
TP42
TP41
TP40
TP39
TP38
TP37
TP36
TP35
TP34
TP33
TP31
TP30
TP99
TP98
TP97
TP96
TP95
TP94
TP93
TP92
TP91
TP90
TP89
TP88
TP87
TP543
TP85
TP504
TP503
TP29
TP28
STi7109_Ext Core 2.5V
ST7019_Ext core 1.13volt
5. POWER BLOCK
Over current protection can be operated
1.8V for HDMI
3.3 volt for HDMI
5.0V For only C.I.
Vcc filter for Soft start
TUNER 3.3/1.8 volt
5.0 volt
3.3 volt
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.
FE_TS_DATA_SYN
FE_TS_DATA[0]
FE_TS_DATA[1]
FE_TS_DATA[2]
FE_TS_DATA[3]
FE_TS_DATA[4]
FE_TS_DATA[5]
FE_TS_DATA[6]
FE_TS_DATA[7]
FE_TS_DATA_CLK
FE_TS_DATA_VAL
5V_TU
IC600
TPS2010ADR
READY
3
IN2
2
IN1
4
EN
1
GND
5
OUT1
6
OUT2
7
OUT3
8
OUT4
10
R657
SW_TU_SDA
5V_TU
BOOSTER
100uF
C638
C613
100uF
16V
C612
47uF
16V
READY
C637
4700pF
GND
SW_TU_SCL
Q604
2SC3875S
E
B
C
Q609
2SA1504S
E
B
C
Q603
2SC3875S
E
B
C
5V_TU
Q608
2SC3875S
E
B
C
L606
HH-1M3216-501
READY
L607
HH-1M3216-501
FE_TS_DATA[0-7],FE_TS_DATA_CLK,FE_TS_DATA_VAL,FE_TS_DATA_SYN
Q602
2SA1504S
C610
270pF
READY
3.3V_TUNER
Q606
2SA1504S
GND
C635
4700pF
5V_TU
GND
I2C_SCL1
I2C_SDA1
TUNER_RESET
FE_TS_DATA_VAL
5.0V
C642
47pF
READY
C641
47pF
READY
C616
0.1uF
C615
0.1uF
READY
C626
0.1uF
R659
0
READY
R654
0
READY
R613
0
C636
0.01uF
R653
10K
READY
R642
10K
R652 2K
READY
C604
10pF
C643
4.7uF
10V
Q607
2SA1504S
C608
100pF
C609
0.1uF
C606
0.1uF
C630
100uF
16V
C605
0.1uF
1.8V_TUNER
5V_TU
R606
33
R626
33
R605
33
R611
33
R610
33
R612
33
R604
33
R609
33
R603
33
R600
33
R608
33
R607
33
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
R627
100K
R629
100
C627
0.1uF
R625
33
R624
33
R640
0
C601
100pF
R636
4.7K
R639
82
R648
1K
R644
1K
R672
0
R641
READY
R649
150
R646
270
R651
0
R656
OPT
C603
0.01uF
2.2K
R658
10K
R655
3.3V_TUNER
TUNER_ERROR
TUNER_RESET
AGC_SPEED_CTL
/FE_RESET
SIF
TU_MAIN
TV_VOUT
TP600
TP601
TP602
TP603
TP604
TP605
TP606
TP607
TP608
TP609
TP610
TP611
TP612
TP613
TP614
TP615
TP616
TP617
TP618
TP619
TP620
TP621
TP622
TP623
TP624
TP625
TP626
TP627
TP629
TP630
TP631
TP632
TP633
TP634
TP635
TP636
TP637
TP638
TP639
TP641
TP642
AM_AUDIO
R660
0
R632
47
R633
47
R647
270
TP671
TP650
TP661
TP672
TP651
TP662
TP673
TP652
TP663
TP674
TP653
TP643
TP664
TP675
TP654
TP665
TP677
TP676
TP655
TP666
TP645
TP656
TP667
TP646
TP657
TP668
TP647
TP658
TP669
TP648
TP659
TP670
TP649
TP660
R637
470
R650
100
TU600
TDFV-G135D1
TUNER_G135D
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
SC
L_
T
12
AI
F_
1
13
AIF
_2
14
NC_3
15
VID
EO
16
AUDI
O
17
SIF
18
SDA
19
SCL
20
RST
21
3.
3V
22
1.
8V
23
ERR
24
M C
L
25
D7
26
D6
27
D5
28
D4
29
D3
30
D2
31
D1
35
SHI
EL
D
32
D0
33
VAL
34
SYN
C
C633
47uF
16V
C623
47pF
GND
GND
C624
47pF
C644
100pF
READY
TP640
TP628
TP644
6.TUNER
to MSP
OPTION: RF AGC
(USE ONLY FOR SECAM)
Q603, R642
For SECAM
C604, C633
C
2008
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