LG 42LD460B/H Service Manual page 38

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+1.8V_AMP
+3.3V_Normal
IC404
AP1117E18G-13
IN
ADJ/GND
3
Vd=1.4V
1
2
OUT
C434
C421
C446
0 . 1 u F
10uF
0 . 1 u F
16V
16V
10V
AMP_RESET_N
AUD_MASTER_CLK
+1.8V_AMP
+1.8V_AMP
L502
L501
OPT
OPT
C501
C502
10uF
0 . 1 u F
C503
10V
10uF
16V
10V
R503
AUD_LRCH
R504
AUD_LRCK
R505
AUD_SCK
R506
AMP_SDA
R507
AMP_SCL
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.
120 mA
+24V
C515
C519
0 . 1 u F
0 . 1 u F
50V
+3.3V_Normal
C514
22000pF
C518
50V
22000pF
L504
50V
C520
1uF
25V
C506
1000pF
50V
BST1A
1
VDR1A
THERMAL
2
57
/RESET
3
AD
C509
4
0 . 1 u F
DGND_1
5
GND_IO
6
IC501
CLK_I
NTP7000
7
C508
VDD_IO
8
C504
1000pF
EAN60969601
50V
DGND_PLL
9
100pF
R508
AGND_PLL
50V
10
3.3K
LF
11
NTP-7000
AVDD_PLL
12
DVDD_PLL
13
GND
14
C505
0 . 1 u F
+1.8V_AMP
OPT
C511
10uF
C513
0 . 1 u F
10V
100
100
100
C516
33
1000pF
33
50V
C507
C510
C546
C544
C545
18pF
18pF
22pF
22pF
22pF
50V
50V
50V
50V
50V
OPT
OPT
OPT
BST1A
NTP7100
1
VDR1A
THERMAL
2
/RESET
57
3
AD
4
DGND_1
5
GND_IO
6
IC501-*1
CLK_I
7
NTP-7100
VDD_IO
8
DGND_PLL
9
AGND_PLL
10
LF
11
AVDD_PLL
12
DVDD_PLL
13
GND
14
D501
1N4148W
R519
R526
OPT
12
12
100V
R535
OPT
3 . 3
C529
390pF
OPT
50V
C547
C521
0 . 0 1 u F
10uF
C530
50V
35V
390pF
D502
50V
1N4148W
R520
R524
100V
12
12
OPT
42
NC
VDR2A
C525
41
22000pF
40
BST2A
D503
R525
R521
50V
PGND2A_2
1N4148W
12
39
12
100V
38
PGND2A_1
OPT
OUT2A_2
C531
37
390pF
36
OUT2A_1
50V
PVDD2A_2
35
C532
34
PVDD2A_1
390pF
50V
PVDD2B_2
D504
33
1N4148W
PVDD2B_1
R522
R523
32
100V
12
12
OUT2B_2
OPT
31
OUT2B_1
+24V
30
PGND2B_2
29
C528
C526
C527
10uF
0 . 1 u F
0 . 1 u F
35V
C524
22000pF
50V
R513
0
POWER_DET
OPT
+3.5V_ST
R515
R514
100
10K
C
R517
B
Q501
AMP_MUTE
2SC3052
10K
E
NC
42
VDR2A
41
BST2A
40
PGND2A_2
39
PGND2A_1
38
OUT2A_2
37
OUT2A_1
36
PVDD2A_2
35
PVDD2A_1
34
PVDD2B_2
33
PVDD2B_1
32
OUT2B_2
31
OUT2B_1
30
PGND2B_2
29
C540 OPT
0 . 0 1 u F
L507
50V
AD-9060
R527
C536
R531 OPT
2S
2F
0 . 1 u F
4.7K
3 . 3
C534
0 . 4 7 u F
1S
1F
50V
R532 OPT
C537
3 . 3
0 . 1 u F
R528
15uH
C541 OPT
4.7K
0 . 0 1 u F
50V
C542 OPT
L506
0 . 0 1 u F
AD-9060
C538
R529
50V
2S
2F
R533 OPT
0 . 1 u F
4.7K
C535
3 . 3
0 . 4 7 u F
50V
1S
1F
R534 OPT
3 . 3
C539
R530
15uH
C543 OPT
0 . 1 u F
4.7K
0 . 0 1 u F
50V
R536
0
SPK_L+
R537
0
SPK_L-
R538
0
SPK_R+
R539
0
SPK_R-
AUDIO[NTP]
SPK_L+
SPEAKER_L
SPK_L-
SPK_R+
SPEAKER_R
SPK_R-
WAFER-ANGLE
4
4
3
3
2
2
1
1
P501
SPK_SLIM
SMAW250-04
P502
SPK_NORMAL
GP2_Saturn7M
V e r . 1 . 1
38

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