Read LG 55LV355B-UA / 55LV355C-UA (CHASSIS:LA0AC) 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.
AMP_SCL
+1.8V_AMP
0.1uF
16V
C502
12
R525
1000pF
50V
C506
0.1uF
50V
50V
C527
22000pF
50V
C525
390pF
50V
C530
4.7K
R529
0.47uF
50V
C534
10uF
10V
C501
OPT
18pF
50V
C510
3.3K
R508
12
R526
AUD_LRCH
D1
NS
12
1
GP
81
M
L
B
L502
12
R521
4.7K
R528
0.1uF
50V
C536
+3.5V_ST
SP
K
_O
U
T_
M
U
TE
1000pF
50V
C508
4.7K
R530
SPK_R+
1
R
47
4
1N4148W
100V
OPT
D502
0.1uF
C509
2SC3052
Q501
E
B
C
WAFER-ANGLE
P501
1
2
3
4
100
R505
22000pF
50V
C514
33
R506
1uF
25V
C520
10uF
35V
C528
0.1uF
16V
C505
390pF
50V
C532
0.1uF
16V
C513
100
R504
NRS6045T100MMGK
10.0uH
L508
0.01uF
50V
OPT
C547
1uF
25V
C522
SPK_L+
10uF
10V
C421
0.1uF
50V
C539
1uF
25V
C512
AUD_LRCK
SPK_R-
10K
R515
0.1uF
50V
C538
SPK_L-
3 . 3
OPT
R535
0.1uF
50V
C515
1N4148W
100V
OPT
D503
33
R507
+24V
0.1uF
16V
C434
12
R519
SPK_R-
+1.8V_AMP
AUD_SCK
AMP_SDA
1uF
25V
C517
B
L
M
18
PG
12
1S
N
1D
L504
SPK_R+
NRS6045T100MMGK
10.0uH
L507
12
R520
0.1uF
50V
C537
22pF
50V
OPT
C545
390pF
50V
C531
390pF
50V
C529
10uF
10V
C433
OPT
10uF
10V
C511
OPT
0
R
53
6
1N4148W
100V
OPT
D504
12
R524
10uF
35V
C521
+3.3V_Normal
0.1uF
50V
50V
C526
1000pF
50V
C516
AUD_MASTER_CLK
22pF
50V
OPT
C544
100
R514
18pF
50V
C507
0.1uF
50V
C519
T
P
50
2
22pF
50V
OPT
C546
AMP_RESET
POWER_DET
+1.8V_AMP
12
R523
D1
NS
12
1
GP
81
M
L
B
L501
4.7K
R527
22000pF
50V
C524
22000pF
50V
C518
+24V
+3.3V_Normal
100pF
50V
C504
100
R503
0.47uF
50V
C535
+1.8V_AMP
0
OPT
R513
10K
R517
THERMAL
NTP-7100
EAN60969603
IC501
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
1
5
D
G
N
D
_2
1
6
D
V
D
D
1
7
SD
A
TA
1
8
W
C
K
1
9
B
C
K
2
0
SD
A
2
1
SC
L
2
2
M
O
N
IT
O
R
0
2
3
M
O
N
IT
O
R
1
2
4
M
O
N
IT
O
R
2
2
5
/F
A
U
L
T
2
6
V
D
R
2B
2
7
B
ST
2B
2
8
PG
N
D
2B
_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
4
3
V
D
R
1B
4
4
B
ST
1B
4
5
PG
N
D
1B
_1
4
6
PG
N
D
1B
_2
4
7
O
U
T
1B
_1
4
8
O
U
T
1B
_2
4
9
PV
D
D
1B
_1
5
0
PV
D
D
1B
_2
5
1
PV
D
D
1A
_1
5
2
PV
D
D
1A
_2
5
3
O
U
T
1A
_1
5
4
O
U
T
1A
_2
5
5
PG
N
D
1A
_1
5
6
PG
N
D
1A
_2
57
E
P_
PA
D
10uF
10V
C503
OPT
0.1uF
16V
C446
AP1117E18G-13
IC404
2
OUT
3
IN
1 ADJ/GND
NRS6045T100MMGK
10.0uH
L509
1N4148W
100V
OPT
D501
NRS6045T100MMGK
10.0uH
L506
12
R522
SPK_L-
AMP_MUTE
SPK_L+
AMP_NTP
20101023
16
GP2R
SPEAKER_R
120 mA
SPEAKER_L
Vd=1.4V
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