Read LG 55LS675H (CHASSIS:LA2AG) 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.
+12V/+15V
ZD1803
5.1V
RJP
ZD1802
5.1V
RJP
R1826
3.9K
RJP
R1828
3.9K
RJP
Q1803
AO3407A RJP
G
D
S
ZD1804
5.1V
RJP
R1821
3.9K
RJP
R1814
510
RJP
C1802
2.2uF
16V RJP
R1815
510
RJP
R1824
3.9K
RJP
R1816
510
RJP
ZD1801
5.1V
RJP
R1817
510
RJP
RJP_CTRL0
RJP_CTRL1
RJP_CTRL2
RJP_CTRL3
RJP_CTRL4
R1818
510
RJP
R1820
3.9K
RJP
ZD1800
5.1V
RJP
R1811
0
RJP_NORMAL
Q1802
AO3407A RJP_PROTECTION
G
D
S
C1811
22uF
16V
16V
OPT
L1800
BLM18PG121SN1D
RJP
R1807
5.1K
RJP_PROTECTION
R1804
5.1K
RJP_PROTECTION
R1819
10K
10K
RJP
R1801
10K
10K
RJP
R1800
10K
RJP
R1808
1K
RJP_PROTECTION
C1810
0.01uF
RJP
C1806
0.01uF
RJP
C1804
0.01uF
RJP
C1809
0.01uF
RJP
C1808
0.01uF
RJP
C1805
1uF
25V
OPT
25V
OPT
JK1800
MJ-657PT-8-SD
RJP_Jack_Silver
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
SUB_MUTE
001:AC13
+5V_Normal
R1802
1K
R1806
100
C1800
1uF
10V
JK1801
PEJ029-02
3
E_SPRING
6
T_TERMINAL
7
B_TERMINAL
5
T_SPRING
4
R_SPRING
8
G_SPRING
L1801
C1807
0.1uF
0.1uF
C1815
39pF
OPT
C1801
1uF
10V
EXT_SPK_R-
018:O11
R1812
3.3K
3.3K
R1823
1K
R1805
0
R1827
100
OPT
R1831
51K
51K
OPT
IC1800
TPA6011A4PWPRG4
3
PVDD_1
2
ROUT-
4
RHPIN
1
PGND_1
6
RIN
5
RLINEIN
7
VDD
8
LIN
9
LLINEIN
10
LHPIN
11
PVDD_2
12
LOUT-
13
PGND_2
14
LOUT+
15
SHUTDOWN
16
FADE
17
BYPASS
18
AGND
19
SEMAX
20
SEDIFF
21
VOLUME
22
HP/LINE
23
SE/BTL
24
ROUT+
Q1800
MMBT3904(NXP)
E
B
C
C1816
39pF
OPT
C1813
39pF
OPT
+3.3V_Normal
C1814
39pF
OPT
R1825
100
100
L1804
EXT_AMP_L_IN
018:AG25
EXT_SPK_L-
018:P6
R1822
10K
L1802
+3.5V_ST
EXT_SPK_L+
018:AL13
R1832
4.7K
4.7K
OPT
C1803
22uF
16V
16V
EXT_SPK_L-
018:AL14
EXT_AMP_R_IN
018:AG21
R1833
100
OPT
R1829
4.7K
EXT_SPK_DET
EXT_SPK_R+
018:AL14
EXT_SPK_R+
018:AB12
R1830
100
EXT_SPK_R-
018:AL14
L1803
C1812
1uF
25V
25V
R1803
1K
R1809
1K
EXT_SPK_L+
018:Y7
R1810
100
RJP_PROTECTION
R1813
4.3K
RJP_PROTECTION
R1828*-1
2.7K
RJP_PROTECTION
EXT_AMP_R_IN
C1818
33pF
+12V/+15V
R1841
5.6K
R1837
33K
R1845
220K
R1840
5.6K
EXT_AMP_L_IN
R1839
470K
OPT
R1844
220K
R1838
470K
OPT
IC1801
AS324MTR-E1
OP_AMP_BCD
3
IN1+
2
IN1-
4
VCC
1
OUT1
6
IN2-
5
IN2+
7
OUT2
8
OUT3
9
IN3-
10
IN3+
11
GND
12
IN4+
13
IN4-
14
OUT4
C1819
330pF
R1842
2.2K
R1834
10K
EXT_AMP_R
R1835
10K
C1820
330pF
C1817
33pF
EXT_AMP_L
R1843
2.2K
R1836
33K
IC1801-*1
SN324
OP_AMP_AUK
3
NON_INV_IN1
2
INV_IN1
4
VCC
1
OUT1
6
INV_IN2
5
NON_INV_IN2
7
OUT2
8
OUT3
9
INV_IN3
10
NON_INV_IN3
11
GND
12
NON_INV_IN4
13
INV_IN4
14
OUT4
JK1800-*1
KRJV9768-1001-024
RJP_Jack_Black
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
SIDE_JACK
20111008
18
37LT670H-UA
RJP
EXT_SPEAKER_AMP
SPEAKER OUT JACK
CLOSE TO MSTAR
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