LG 42LK450 Service Manual page 53
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Also See for 42LK450:
- Service manual (41 pages) ,
- Specifications (2 pages) ,
- Owner's manual (184 pages)
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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
0.1uF
0.1uF
10uF
16V
16V
10V
AMP_RESET
AUD_MASTER_CLK
+1.8V_AMP
+1.8V_AMP
L502
L501
OPT
C501
C502
10uF
0.1uF
10V
16V
AUD_LRCH
AUD_LRCK
AUD_SCK
AMP_SDA
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
0.1uF
50V
+3.3V_Normal
C514
22000pF
50V
L504
C506
1000pF
50V
BST1A
1
C512
VDR1A
THERMAL
2
1uF
25V
57
/RESET
3
AD
C509
4
0.1uF
DGND_1
5
GND_IO
6
IC501
CLK_I
7
C508
VDD_IO
8
C504
1000pF
C433
EAN60969603
50V
DGND_PLL
10uF
9
100pF
R508
10V
AGND_PLL
50V
OPT
10
3.3K
LF
11
NTP-7100
AVDD_PLL
12
DVDD_PLL
13
GND
14
OPT
C503
C505
10uF
0.1uF
10V
16V
+1.8V_AMP
OPT
C511
C517
1uF
10uF
C513
25V
10V
0.1uF
16V
R503
100
R504
100
R505
100
C516
R506
33
1000pF
R507
33
50V
C507
C510
C546
C544
C545
18pF
18pF
22pF
22pF
22pF
50V
50V
50V
50V
50V
OPT
OPT
OPT
D501
1N4148W
R519
R526
OPT
100V
12
12
R535
OPT
3.3
C529
390pF
OPT
50V
C547
C521
C519
0.01uF
10uF
0.1uF
C530
50V
35V
390pF
50V
D502
50V
1N4148W
R520
R524
100V
12
12
OPT
C518
22000pF
50V
C520
1uF
25V
NC
C522
42
25V
1uF
41
VDR2A
C525
22000pF
BST2A
40
D503
R521
R525
50V
PGND2A_2
1N4148W
12
39
12
100V
PGND2A_1
38
OPT
OUT2A_2
C531
37
390pF
OUT2A_1
50V
36
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
0.1uF
0.1uF
35V
50V
50V
C524
22000pF
50V
R513
0
POWER_DET
OPT
+3.5V_ST
R515
R514
100
10K
C
R517
B
Q501
AMP_MUTE
2SC3052
10K
E
L506
R527
C536
10.0uH
0.1uF
4.7K
50V
NRS6045T100MMGK
C534
0.47uF
10.0uH
50V
C537
L507
0.1uF
R528
NRS6045T100MMGK
50V
4.7K
NRS6045T100MMGK
L508
C538
R529
10.0uH
0.1uF
4.7K
C535
50V
0.47uF
L509
50V
10.0uH
NRS6045T100MMGK
C539
R530
0.1uF
4.7K
50V
SPK_L+
SPK_L-
SPK_R+
SPK_R-
GP2R
AMP_NTP
SPK_L+
SPEAKER_L
SPK_L-
SPK_R+
SPEAKER_R
SPK_R-
WAFER-ANGLE
4
3
2
1
P501
20101023
16
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