Read LG 42LN549D (CHASSIS:LB3AX) 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.
10K
R502
NON_LIPS
CIS21J121
L501
SS
+24V_AMP
0
LIPS_ONLY
R522
MMBT3904(NXP)
Q501
NON_LIPS
E
B
C
0 . 1 u F
50V
C501
POWER_DET
10K
R501
NON_LIPS
+3.5V_ST
AMP_MUTE
0 . 1 u F
50V
C502
+24V
100
R503
NON_LIPS
10K
R520
NON_LIPS
MLB-201209-0120P-N2
L501-*1
MAG
10uH
L500
0
R506
+24V_AMP
SPK_L+
AUD_MASTER_CLK
43
R509
AMP_SDA
0 . 1 u F
16V
C506
0 . 2 2 u F
50V
50V
C518
CIS21J121
L505
1000pF
50V
50V
C500
AMP_RESET
SPK_R+
WAFER-ANGLE
P501
1
2
3
4
AMP_SCL
1000pF
50V
50V
C521
330pF
50V
50V
C510
43
R508
3216
10uF
35V
C514
SPK_R-
0 . 1 u F
16V
16V
C507
0 . 1 u F
50V
C513
0 . 2 2 u F
50V
50V
C520
SPK_L+
SPK_R+
0
R505
1uF
50V
C512
SPK_L-
1000pF
50V
50V
C522
0 . 1 u F
16V
16V
C505
0 . 1 u F
50V
C508
0 . 2 2 u F
50V
50V
C515
0 . 1 u F
16V
C503
0 . 2 2 u F
50V
50V
C516
10uH
L503
1uF
50V
C509
330pF
50V
50V
C511
T H
E R
M A
L
STA380BWF
IC500
1VCC_REG
2 VSS_REG
3 OUT2B
4 GND2
5 VCC2
6 OUT2A
7 OUT1B
8 VCC1
9 GND1
10 OUT1A
11VDD_REG
12GND_REG
13
NC_1
14
NC_2
15
NC_3
16
NC_4
17
NC_5
18
NC_6
19
NC_7
20
NC_8
21
NC_9
22
NC_10
23
NC_11
24
NC_12
25
NC_13
26
NC_14
27
NC_15
28
VDDDIG1
29
GNDDIG1
30
FFX3A
31
FFX3B
32
EAPD/FFX4A
33
TWARNEXT/FFX4B
34
VREGFILT
35
AGNDPLL
36
MCLK
37
BICKI
38
LRCKI
39
SDI
40
RESET
41
PWDN
42
INTLINE
43
SDA
44
SCL
45
SA
46
TESTMODE
47
GNDDIG2
48
VDDDIG2
49
[EP]
SPK_R-
43
R510
AUD_LRCH
AUD_LRCK
1000pF
50V
50V
C523
+3.3V_Normal
+3.3V_Normal
10uH
L504
0 . 2 2 u F
50V
50V
C519
0 . 2 2 u F
50V
50V
C517
1000pF
50V
50V
C524
AUD_SCK
10uH
L502
SPK_L-
2 . 2 u F
10V
C504
43
R507
NTP-7500
Audio amp(STA380BWF)
5
LA2AW
2 0 1 2 . 0 9 . 1 1
SPEAKER_R
SPEAKER_L
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