Read LG 42LH50YD (CHASSIS:LJ91C) 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.
AUDIO
BRAZIL DVR DV
2009.01.20
C519
10uF
R528
100
P500
SMAW250-04Q
1
SPK_R-
2
SPK_R+
3
SPK_L-
4
SPK_L+
5
.
R522
100
+20.0V
MICOM_RESET
12:I4
C523
22000pF
C522
1uF
C504
0.1uF
C544
0.47uF
0.47uF
C513
330uF
R525
3.3
C532
0.1uF
0.1uF
R535
4.7K
R537
4.7K
4.7K
C525
1uF
GND
C515
22000pF
22000pF
D504
100V
1N4148W
OPT
+1.8V_AMP
R524
100
D3.3V
C505
10uF
C531
1000pF
C500
100pF
JP506
L502
BLM18PG121SN1D
R527
0
R531
5.6
5.6
C541
0.1uF
SCL1_3.3V
5:G5;16:G14
C528
0.1uF
R523
100
R538
3.3
C538
1000pF
R541
3.3
C566
33pF
33pF
L509
MLB-201209-0120P-N2
C512
22000pF
22000pF
IC500
NTP-3100L
1
BST1A
2
VDR1A
3
RESET
4
AD
5
DVSS_1
6
VSS_IO
7
CLK_I
8
VDD_IO
9
DGND_PLL
10
AGND_PLL
11
LFM
12
AVDD_PLL
13
DVDD_PLL
14
TEST0
15
DVSS_2
16
DVDD
17
SDATA
18
WCK
19
BCK
20
SDA
21
SCL
22
MONITOR_0
23
MONITOR_1
24
MONITOR_2
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
C518
0.1uF
D503
100V
1N4148W
OPT
C526
0.1uF
C520
0.01uF
C543
0.47uF
0.47uF
C507
0.1uF
L508
MLB-201209-0120P-N2
L500
BLM18PG121SN1D
C539
0.1uF
C501
1000pF
L510
MLB-201209-0120P-N2
C529
0.1uF
C509
1uF
10V
10V
C503
0.1uF
C506
0.1uF
0.1uF
BCM_I2S_LRCLK_OUT
11:V25
+1.8V_AMP
C521
1uF
L503
BLM18PG121SN1D
IC504
AZ1117H-1.8TRE1(EH13A)
2
OUTPUT
3
INPUT
1
ADJ/GND
D3.3V
R526
100
JP504
C564
0.01uF
0.01uF
C537
1000pF
C542
0.1uF
0.1uF
JP503
R536
4.7K
4.7K
MUTE1
12:G3
R532
5.6
5.6
C534
10uF
L501
BLM18PG121SN1D
C530
0.01uF
D501
100V
1N4148W
OPT
C527
330uF
C565
33pF
33pF
R530
5.6
C552
10uF
C540
0.1uF
0.1uF
C547
0.01uF
0.01uF
R542
100
C508
33pF
33pF
R529
100
L504
DA-8580
22uH
2S
1S
1F
2F
+1.8V_AMP
D502
100V
1N4148W
OPT
C567
0.1uF
R539
3.3
BCM_I2S_DATA_OUT
11:V25
C517
0.1uF
R556
0
R533
5.6
5.6
R534
4.7K
4.7K
SDA1_3.3V
5:G5;16:G14
C535
1000pF
1000pF
C514
0.1uF
C536
1000pF
C548
0.01uF
0.01uF
C524
22000pF
L506
DA-8580
22uH
2S
1S
1F
2F
C533
10uF
BCM_AUD_MCLK
9:H6
L511
MLB-201209-0120P-N2
BCM_I2S_SCLK_OUT
11:V26
R501
3.3
C546
0.01uF
0.01uF
JP505
R521
3.3K
+1.8V_AMP
C545
0.01uF
+20.0V
R540
3.3
C516
0.1uF
3
17
IIC CH4
0x54
MCLK : 12.288MHz
A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
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