LG 42lk530 Service Manual page 37

TAS5727
DUAL COMPONENT
Q4901 1ST : 0TRIY80001A 2ND : 0TR387500AA
MAIN
+3.3V_DVDD
OPT
R4904
AUD_MASTER_CLK
R4902
2K
33
AMP_RESET_N AMP_RESET
C4901
1000pF
OPT
+3.5V_ST
R4903
10K
100
C
R4907
R4901 C4902
B
Q4901
AMP_MUTE 1000pF
2SC3052
10K
50V
E
OPT
R4905 OPT
0
AUD_LRCK
AUD_SCK
AUD_LRCH
R4906
0
Separate DGND AND AVSS
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.
This parts are Located
on AVSS area.
C4913 4700pF
C4911
R4917
470
0.047uF
+3.3V_AU_AVDD
AVDD
13
A_SEL_FAULT
C4905 14
R4915 15K
0.1uF
MCLK
15
R4908 0
OSC_RES
1%
16
R4912
C4903
10K
18K
33pF DVSSO
OPT R4916 17
OPT
VR_DIG
18
PDN
19
Amp_Mute_PDN LRCLK
C4908 20
0.1uF
SCLK
21
SDIN
Amp_Mute_PDN
22
SDA
23
R4909 0
SCL
R4910 0 24
R4911 0
C4904 C4906 C4907
33pF 33pF 33pF
OPT OPT OPT
R4913 33
SDA3_3.3V
R4914 33
SCL3_3.3V
C4909 C4910
33pF 33pF
OPT OPT
AMP_RESET
+3.3V_DVDD
C4912
0.1uF
16V
C4920
0.033uF
+24V_AMP
50V
VERY CLOSE AMP IC
C4926
10uF
35V
[EP]
PGND_AB_2
48
PGND_AB_1
47
OUT_B
46
PVDD_B_2
45
50V
C4922
PVDD_B_1 0.033uF
44
0.01uF C4924
BST_B
43
BST_C
42
PVDD_C_2
41
50V
C4921
PVDD_C_1
0.033uF
40 0.01uF
C4923
OUT_C
39
PGND_CD_2
38
PGND_CD_1
37
+24V_AMP
VERY CLOSE AMP IC
C4925
10uF
35V
0.033uF
C4919
50V
C4917
0.1uF
+3.3V_Normal
Place at Bottom
C4927
100pF
50V
C4928
100pF
50V
C4939
L4903 0.01uF
10.0uH C4935
0.33uF
50V R4925
NRS6045T100MMGK
L4904 3.3
C4932
10.0uH
0.33uF
50V R4926
NRS6045T100MMGK
3.3
C4936
C4940
0.33uF
0.01uF
50V
50V
C4937
0.01uF
L4901
C4933
10.0uH
0.33uF
50V R4923
NRS6045T100MMGK
L4902 C4931 3.3
10.0uH
0.33uF
50V R4924
NRS6045T100MMGK
3.3
C4934
C4938
0.33uF
0.01uF
50V
50V
C4929
100pF
SPK_OUTPUT_BEAD
50V
R4927-*1
CIS21J121
R4928-*1
C4930
CIS21J121
100pF
50V
R4929-*1
CIS21J121
R4930-*1
CIS21J121
BCM35230
LV7 ATSC AMP
+3.3V_AU_AVDD
L4905
120-ohm
+3.3V_DVDD
L4906
120-ohm
+24V_AMP
+24V
L4907
MLB-201209-0120P-N2
C4941 C4942
0.1uF 0.1uF
50V 50V
SPK_L+
SPEAKER_L
SPK_L-
SPK_R+
SPEAKER_R
SPK_R-
WAFER-ANGLE
SPK_OUTPUT_RESISTER
R4927
0
SPK_L+
4
R4928
0
SPK_L-
3
R4929
0
SPK_R+
2
R4930
0
SPK_R-
1
P4901
49 50