Read LG 32LT670H (CHASSIS:LA2AF) 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.
47uF
25V
25V
C1803
MJ-657PT-8-SD
JK1800
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10K
R1801
+12V/+15V
1uF
25V
25V
OPT
C1801
0.01uF
C1806
5.1V
ZD1803
5.1V
ZD1802
3.9K
R1811
0.01uF
C1804
3.9K
R1812
AO3407A
Q1800
G
D
S
MLB-201209-0120P-N2
L1800
5.1V
ZD1804
3.9K
R1809
0.01uF
C1807
510
R1804
2 . 2 u F
16V
C1800
510
R1805
10K
R1802
10K
R1800
0.01uF
C1805
3.9K
R1810
510
R1806
5.1V
ZD1801
510
R1807
39pF
OPT
OPT
C1813
39pF
OPT
OPT
C1812
EXT_OUT_R
3:AF9
P E J 0 2 7 - 0 4
JK1801
EXT_SPK
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
EXT_OUT_L
3:AF8
EXT_SPK_DET
+3.3V_Normal
51K
R1827
EXT_SPK
100
R1828
EXT_SPK
4.7K
R1836
EXT_SPK
0 . 1 u F
16V
16V
C1837
EXT_SPK
EXT_OUT_L
17:Y27
THERMAL
TS4962
IC1800
EXT_SPK
3
IN+
2
NC
4
I N -
1
STBY
5
OUT+
6
VCC
7
GND
8
OUT-
9
[EP]GND
0
R1843
EXT_SPK
15
R1838
EXT_SPK
PNP
Q1801
EXT_SPK
E
B
C
1.5K
R1839
EXT_SPK
15
R1837
EXT_SPK
EXT_R_AMP_IN
11:U22
15pF
50V
50V
C1833
EXT_SPK
0
R1842
EXT_SPK
EXT_L_AMP_IN
11:U22
15pF
50V
C1834
EXT_SPK
1.5K
R1840
EXT_SPK
1uF
C1835
EXT_SPK
24K
OPT
R1841
1uF
C1836
EXT_SPK
EXT_OUT_R
17:Y26
+12V/+15V
330
R1830
R1830
EXT_SPK
10uF
10V
10V
C1832
EXT_SPK
+5V_SUB_AMP
0 . 1 u F
50V
50V
C1830
EXT_SPK
0 . 1 u F
16V
16V
OPT
C1831
110
R1831
EXT_SPK
AP1117EG-13
IC1801
EXT_SPK
ADJ/GND
OUT
IN
1
5%
R1832
EXT_SPK
BLM18PG121SN1D
L1801
EXT_SPK
+5V_SUB_AMP
1uF
16V
16V
C1839
EXT_SPK
0 . 1 u F
C1838
EXT_SPK
+5V_Normal
4.7K
R1834
EXT_SPK
SUB_AMP_MUTE
4 : C 1 4
10K
R1833
EXT_SPK
47K
R1835
EXT_SPK
RJP_CTRL0
RJP_CTRL1
RJP_CTRL2
RJP_CTRL3
SIDE_JACK
20110324
18
GP3_S7LR
RJP
SPEAKER OUT JACK
C470 Close to LDO
EXT_SPEAKER_AMP
12V==>5V AMP POWER
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