LG 55LW9800 Service Manual page 40

TAS5727
DUAL COMPONENT
Q1701
1ST : 0TRIY80001A 2ND : 0TR387500AA
MAIN
+3.3V_DVDD
OPT
R1704 AUD_MASTER_CLK
R1702
2K
33
AMP_RESET_N AMP_RESET
C1701
1000pF
OPT
+3.5V_ST
R1703
10K
100
C
R1706
R1701
B C1702
Q1701
AMP_MUTE
1000pF
2SC3052
10K 50V
E
OPT
R1705 OPT
0
AUD_LRCK
AUD_SCK
AUD_LRCH
R1707
0
Separate DGND AND AVSS
Separate DGND AND AVSS
WOOFER
AUD_MASTER_CLK
AUD_LRCK
AUD_SCK
AUD_LRCH
SDA3_3.3V
SCL3_3.3V
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.
C1728 4700pF
C1724
R1719
0.047uF 470
+3.3V_AU_AVDD
AVDD
13
A_SEL_FAULT
C1712
R1713 15K 14
0.1uF
MCLK
15
R1753 0
OSC_RES
1% 16
R1761
C1797
10K
33pF 18K DVSSO
OPT 17
R1717
OPT
VR_DIG
18
PDN
19
Amp_Mute_PDN
LRCLK
C1718 20
0.1uF
SCLK
21
Amp_Mute_PDN SDIN
22
SDA
23
R1754 0
SCL
R1755 0
24
R1756 0
C1703 C1704 C1706
33pF 33pF 33pF
OPT OPT OPT
R1710 33
SDA3_3.3V
R1711 33
SCL3_3.3V
C1720 C1722
33pF 33pF
OPT OPT
AMP_RESET
+3.3V_DVDD
C1727
0.1uF
16V
This parts are Located
WOOFER
R1752
on AVSS area.
0
WOOFER
C1726 4700pF
WOOFER WOOFER
C1723
R1718
470
0.047uF
+3.3V_AU_AVDD
AVDD
13
WOOFER WOOFER A_SEL_FAULT
14
C1709 R1712 15K
0.1uF
MCLK
15
R1757 0
WOOFER
WOOFER
R1716 OSC_RES
18K 16
R1762
C1798
10K
1%
33pF DVSSO
OPT 17
OPT
VR_DIG
18
PDN
19
Amp_Mute_PDN WOOFER LRCLK
C1717 20
0.1uF
SCLK
21
SDIN
22
SDA
23
R1758 0 WOOFER
SCL
R1759 0 WOOFER 24
R1760 0 WOOFER
C1708 C1710 C1711
33pF 33pF 33pF
OPT OPT OPT
R1708 33 WOOFER
R1709 33 WOOFER
C1719 C1721
33pF 33pF
OPT OPT
AMP_RESET
+3.3V_DVDD
WOOFER
C1725
0.1uF
16V
C1744
0.033uF
50V +24V_AMP
C1766
10uF
35V
[EP]
PGND_AB_2
48
PGND_AB_1
47
OUT_B
46
PVDD_B_2
45
50V
PVDD_B_1 C1754 0.033uF
44
0.01uF
C1762
BST_B
43
TAS5727
BST_C
42
IC1702
PVDD_C_2
41
50V
C1751
PVDD_C_1 0.033uF
40
0.01uF
I2C : 0X54 C1761
OUT_C
39
PGND_CD_2
38
PGND_CD_1
37
+24V_AMP
VERY CLOSE AMP IC
C1764
10uF
35V
C1743 0.033uF
50V
C1738
0.1uF
WOOFER
C1742
0.033uF
+24V_AMP
50V
WOOFER
C1765
10uF
35V
[EP]
PGND_AB_2
48
PGND_AB_1
47
OUT_B
46
PVDD_B_2
45
WOOFER
WOOFER
C1759
WOOFER C1752
PVDD_B_1 0.033uF
44
0.01uF
50V
BST_B
43
TAS5727
BST_C
42
IC1701
PVDD_C_2
41
WOOFER WOOFER
C1758
C1748
PVDD_C_1
I2C : 0X56 0.033uF
40 0.01uF
50V
OUT_C
39
PGND_CD_2
38
PGND_CD_1
37
+24V_AMP
VERY CLOSE AMP IC
WOOFER
C1763
10uF
35V
WOOFER
0.033uF
C1741
50V
WOOFER
C1736
0.1uF
Place at Bottom
VERY CLOSE AMP IC
C1771
100pF
50V
C1772
100pF
50V
NRS6045T100MMGK
L1707
10.0uH
C1778
0.33uF
50V
L1708
10.0uH
NRS6045T100MMGK
NRS6045T100MMGK
L1703
10.0uH C1783
0.33uF
50V
C1777
0.33uF
50V
L1704
C1784
10.0uH
0.33uF
50V
NRS6045T100MMGK
C1773
100pF
50V
C1774
100pF
50V
Place at Bottom
VERY CLOSE AMP IC
WOOFER
C1767
100pF
50V
WOOFER
C1768
100pF
WOOFER
50V
NRS6045T100MMGK
WOOFER
L1705
10.0uH C1781
0.33uF
WOOFER 50V
C1776
0.33uF
50V
WOOFER
L1706
C1782
10.0uH
0.33uF
NRS6045T100MMGK
50V
WOOFER
WOOFER
NRS6045T100MMGK
WOOFER
L1701
C1779
10.0uH
0.33uF
50V
WOOFER
C1775
0.33uF
50V
L1702 WOOFER
C1780
10.0uH
0.33uF
NRS6045T100MMGK 50V
WOOFER
WOOFER
C1769
100pF
50V
WOOFER
C1770
100pF
50V
+3.3V_Normal
+3.3V_AU_AVDD
L1709
120-ohm +3.3V_DVDD
L1710
120-ohm
+24V_AMP
+24V
L1711
MLB-201209-0120P-N2
C1795 C1796
0.1uF 0.1uF
50V 50V
C1793
0.01uF
C1785
50V
0.33uF
50V R1736
3.3
R1737
3.3
C1786
C1794
0.33uF
0.01uF
50V
50V
SPK_L+
SPEAKER_L
AUDIO_STRAIGHT
P1702-*1
SPK_L-
TJC2508-4A
SPK_R+
SPEAKER_R 1
SPK_R-
C1791
2
0.01uF
50V
R1734
3
3.3
R1735
4
3.3
C1792
0.01uF
50V
WAFER-ANGLE
SPK_OUTPUT_RESISTER
SPK_OUTPUT_BEAD
R1742
R1742-*1
0
CIS21J121 SPK_L+
4
R1743
0
R1743-*1
SPK_L-
CIS21J121
3
R1744
0
R1744-*1
SPK_R+
CIS21J121 2
R1745
0
R1745-*1 SPK_R-
1
CIS21J121
P1702
AUDIO_ANGLE
WOOFER
C1789
0.01uF
50V
WOOFER
R1732
3.3
WOOFER
R1733
3.3
WOOFER
C1790
0.01uF
50V
SPK_Woofer_L+
SPK_Woofer_L-
SPK_Woofer_R+
WOOFER
SPK_Woofer_R-
C1787
0.01uF
50V
WOOFER
R1730
3.3
WOOFER
R1731
3.3
C1788
0.01uF
50V
P1701
WOOFER
SMAW250-05
WOOFER_OUTPUT_RESISTOR
WOOFER
WOOFER_OUTPUT_BEAD
R1738
0
R1738-*1 1
SPK_Woofer_R-
CIS21J121
R1739
0
2
SPK_Woofer_R+
R1739-*1
CIS21J121
3
R1740-*1
CIS21J121
R1740
0
4
SPK_Woofer_L-
R1741-*1
R1741
CIS21J121
0
5
SPK_Woofer_L+
BCM35230
17
AUDIO[TI] 50