LG 32SE3B-BE Service Manual page 25

AUDIO AMP(TI)
GND should be separated totally
on artwork
UBW2012-121F
Separate DGND AND AVSS
+13V_A
F1
0454004.NR
! 125 V 4 A
+3.5V_ST
R500
10K
C
R499
B
Q313
AMP_MUTE
MMBT3904(NXP)
10K
E
POWER_DET
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Copyright ⓒ 2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes
L329
This parts are Located
+13V_AMP
on AVSS area.
C2119
0.1uF
50V
C2136 4700pF
C2135 R515
0.047uF 470
+3.3V_NORMAL
AVDD
13
C2129 R565 2K A_SEL_FAULT
14
0.1uF
MCLK
15
16V
OSC_RES
R564 18K 1% 16
DVSSO
17
VR_DIG
AUD_MASTER_CLK 18
R506
PDN
19
LRCLK
100 20
C2125
SCLK
1000pF C2134 21
50V 0.1uF SDIN
22
SDA
23
SCL
24
AUD_LRCK
READY
AUD_SCK
R502
AUD_LRCH
0
AMP_SDA
AMP_SCL
AMP_RESET
+3.3V_NORMAL
C2133
0.1uF OPT
16V ZD305
5V
C2139
0.1uF
16V
NRS6045T100MMGK
L325
R524 10.0uH
+13V_AMP
18
C2162
330pF
50V
C2157
C2153 C2170
0.1uF 10uF
0.47uF
50V 35V
50V
C2163
330pF
[EP] 50V
48 PGND_AB_2 R525
18
PGND_AB_1
47
L327
46 OUT_B
NC_6
45 10.0uH
C2160
44 NC_5 0.033uF
NRS6045T100MMGK
50V
BST_B
43
42 BST_C
NC_4
41
C2161
NC_3 NRS6045T100MMGK
40
0.033uF
L324
OUT_C 50V
39
PGND_CD_2
38
10.0uH
PGND_CD_1
37
R567
1/16W
18
C2164
330pF
C2171
+13V_AMP 50V
0.47uF
50V
C2165
C2147
330pF
0.1uF
50V
C2154 C2158
0.1uF 10uF
50V 35V
R527
1/16W
18
L326
10.0uH
C2151
NRS6045T100MMGK
0.033uF
50V
Close to Speaker
SPK_L+
OPT
C2183
C2172
0.1uF 2200pF
50V 50V
SPK_L-
OPT
SPK_L+
C2184
C2173
2200pF
0.1uF
50V
50V
SPK_L-
SPK_R+
OPT
C2185
C2174
SPK_R-
0.1uF 2200pF
50V 50V
SPK_R+
OPT
C2186
C2175
2200pF
0.1uF
50V
50V
SPK_R-
INTERNAL SPEAKER WAFER
(6 ohm / 10 Watt)
SPK_L+
SPK_L-
SPK_R+
SPK_R-
AMP(Audio)
R 1
DETECT 3
L 4
GND 5
KJA-PH-0-0177
SPK L
R 1
DETECT 3
L 4
GND 5
KJA-PH-0-0177
SPK R
4
3
2
1
INTERNAL_SPK
Black : Box_Type
LS33B
14/10/09
LGE Internal Use Only