Read LG 42LV375H-ZA (CHASSIS:LD03X) Service Manual 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.
+1.8V_AMP
22pF
50V
50V
EMI
C545
0 . 1 u F
50V
C515
AP1117E18G-13
IC504
2
OUT
3
IN
1
ADJ/GND
1000pF
50V
C508
0 . 4 7 u F
50V
C535
100
R505
1000pF
50V
C506
4.7K
R529
+1.8V_AMP
0 . 1 u F
16V
16V
C548
+1.8V_AMP
2SC3052
Q501
E
B
C
12
R526
4.7K
R528
3 . 3
EMI
R535
10uF
35V
35V
C521
22pF
50V
50V
EMI
C546
10K
R517
12
R521
10uF
10V
10V
C549
390pF
50V
C531
BLM18PG121SN1D
L502
100pF
50V
C504
0 . 1 u F
50V
50V
C519
AUD_LRCK
10uF
10V
C503
OPT
AUD_LRCH
22000pF
50V
C525
12
R522
SCL1_3.3V
22pF
50V
50V
EMI
C544
0 . 1 u F
16V
C513
1N4148W
100V
OPT
100V
OPT
D503
0
R538
AUD_SCK
1uF
25V
C520
0 . 1 u F
16V
C505
AMP_MUTE
0 . 0 1 u F
50V
50V
EMI
C547
SPK_L+
0 . 1 u F
50V
C537
AMP_RESET_N
0 . 1 u F
50V
50V
C526
SPK_L-
12
R525
1N4148W
100V
OPT
D502
SPK_R+
3.3K
R508
0 . 1 u F
16V
16V
C550
+3.3V_NORMAL
SPK_R-
22000pF
50V
C518
12
R519
+1.8V_AMP
SPK_L+
22000pF
50V
C524
WAFER-ANGLE
P501
1
2
3
4
AUD_MASTER_CLK
0 . 4 7 u F
50V
C534
1
R474
0
R539
BLM18PG121SN1D
L504
+24V
SPK_R+
+3.5V_ST
390pF
50V
C532
4.7K
R530
BLM18PG121SN1D
L501
100
R507
1N4148W
100V
OPT
100V
OPT
D504
10uF
10V
C511
OPT
0 . 1 u F
50V
C538
0 . 1 u F
50V
50V
C539
+3.3V_NORMAL
100
R514
100
R503
POWER_DET
12
R520
12
R523
10uF
10V
C501
OPT
0 . 1 u F
50V
50V
C527
12
R524
390pF
50V
C529
0
OPT
R513
0 . 1 u F
50V
C536
0
R536
100
R504
SDA1_3.3V
100
R506
0 . 1 u F
16V
C502
1N4148W
100V
OPT
D501
10K
R515
1000pF
50V
50V
C516
1uF
25V
C522
10uF
35V
35V
C528
0 . 1 u F
C509
1uF
25V
C512
1uF
25V
C517
4.7K
R527
22000pF
50V
C514
SPK_R-
0
R537
SPK_L-
390pF
50V
C530
4.7K
R553
0 . 1 u F
50V
50V
C564
EXT_OUT_R
EXT_R_AMP
10K
R548
1uF
C557
10K
OPT
R550
0 . 1 u F
50V
C560
0 . 4 7 u F
50V
50V
C569
1uF
16V
16V
C556
SUBAMP_SD
10K
R551
TPA3124D2PWPR
IC502
3
PVCCL_2
2
SD
4
MUTE
1
PVCCL_1
6
RIN
5
LIN
7
BYPASS
8
AGND_1
9
AGND_2
10
PVCCR_1
11
VCLAMP
12
PVCCR_2
13
PGNDR_1
14
PGNDR_2
15
ROUT
16
BSR
17
GAIN1
18
GAIN0
19
AVCC_1
20
AVCC_2
21
BSL
22
LOUT
23
PGNDL_1
24
PGNDL_2
EXT_L_AMP
100uF
25V
25V
C570
0 . 4 7 u F
50V
50V
C568
4.7K
R552
CB3216UA121
L500
100uF
25V
25V
C571
1uF
16V
16V
C559
1uF
50V
50V
C567
SUBAMP_MUTE
1uF
C558
1uF
50V
50V
C566
EXT_OUT_L
10K
R549
OPT
0 . 1 u F
50V
C561
EXT_OUT_L
EXT_OUT_R
1uF
10V
OPT
C575
1uF
10V
OPT
C572
EXT_LOUT_P
100
R543
EXT_ROUT_N
68K
R512
EXT_LOUT_N
1K
1%
R541
68K
R511
1K
1%
R542
68K
R516
10uF
C553
EXT_L_AMP
68K
R510
10uF
C554
KA4558D
IC500
3
IN1(+)
2
IN1(-)
4
VEE
1
OUT1
5
IN2(+)
6
IN2(-)
7
OUT2
8
VCC
EXT_ROUT_P
EXT_R_AMP
MLB-201209-0120P-N2
L3800
+24V
+24V_AMP
THERMAL
NTP-7000
EAN60969601
IC501
NTP7000
1
BST1A
2
VDR1A
3
/RESET
4
AD
5
DGND_1
6
GND_IO
7
CLK_I
8
VDD_IO
9
DGND_PLL
10
AGND_PLL
11
LF
12
AVDD_PLL
13
DVDD_PLL
14
GND
15
DGND_2
16
DVDD
17
SDATA
18
WCK
19
BCK
20
SDA
21
SCL
22
MONITOR0
23
MONITOR1
24
MONITOR2
25
/FAULT
26
VDR2B
27
BST2B
28
PGND2B_1
29
PGND2B_2
30
OUT2B_1
31
OUT2B_2
32
PVDD2B_1
33
PVDD2B_2
34
PVDD2A_1
35
PVDD2A_2
36
OUT2A_1
37
OUT2A_2
38
PGND2A_1
39
PGND2A_2
40
BST2A
41
VDR2A
42
NC
43
VDR1B
44
BST1B
45
PGND1B_1
46
PGND1B_2
47
OUT1B_1
48
OUT1B_2
49
PVDD1B_1
50
PVDD1B_2
51
PVDD1A_1
52
PVDD1A_2
53
OUT1A_1
54
OUT1A_2
55
PGND1A_1
56
PGND1A_2
57
EP_PAD
0 . 1 u F
50V
50V
C3800
+24V_AMP
PEJ027-01
JK500
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
AD-9060
15uH
L507
2S
1S
1F
2F
AD-9060
15uH
L506
2S
1S
1F
2F
100
R531
100
R546
39pF
C500
39pF
C551
39pF
C533
39pF
C523
+5V_NORMAL
+24V
CB3216UA121
L505
1uF
50V
50V
C541
1uF
50V
50V
C540
18pF
50V
50V
C507
18pF
50V
50V
C510
10uF
35V
35V
C565
22uF
16V
16V
C552
4 . 7 u F
50V
50V
C573
4 . 7 u F
50V
50V
C574
THERMAL
NTP-7100
IC501-*1
NTP7100
1
BST1A
2
VDR1A
3
/RESET
4
AD
5
DGND_1
6
GND_IO
7
CLK_I
8
VDD_IO
9
DGND_PLL
10
AGND_PLL
11
LF
12
AVDD_PLL
13
DVDD_PLL
14
GND
15
DGND_2
16
DVDD
17
SDATA
18
WCK
19
BCK
20
SDA
21
SCL
22
MONITOR0
23
MONITOR1
24
MONITOR2
25
/FAULT
26
VDR2B
27
BST2B
28
PGND2B_1
29
PGND2B_2
30
OUT2B_1
31
OUT2B_2
32
PVDD2B_1
33
PVDD2B_2
34
PVDD2A_1
35
PVDD2A_2
36
OUT2A_1
37
OUT2A_2
38
PGND2A_1
39
PGND2A_2
40
BST2A
41
VDR2A
42
NC
43
VDR1B
44
BST1B
45
PGND1B_1
46
PGND1B_2
47
OUT1B_1
48
OUT1B_2
49
PVDD1B_1
50
PVDD1B_2
51
PVDD1A_1
52
PVDD1A_2
53
OUT1A_1
54
OUT1A_2
55
PGND1A_1
56
PGND1A_2
57
EP_PAD
22.0uH
L510
22.0uH
L511
27K
1%
R540
27K
1%
R518
33K 1%
R500
33K 1%
R501
33K 1%
R502
33K 1%
R509
0 . 2 2 u F
50V
50V
C562
0 . 2 2 u F
50V
50V
C563
120 mA
SPEAKER_L
SPEAKER_R
Vd=1.4V
CCFL = 20V
Edge_LED 32~47 Inch = 20V
5 5 I n c h & I O P M o d u l e = 2 4 V
EXT_SPEAKER_DClass_AMP
EXT_SPEAKER
38
Chameleon(EU_GP2_BCM3556)
2 0 1 0 . 1 2 . 2 0
AUDIO AMP
xxLV375H-ZA
SPK_L+
SPK_L-
SPK_R+
SPK_R-
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