LG 24LN451B Service Manual page 27

AUDIO AMP
+3.3V_Normal
AUD_MASTER_CLK
OPT
C702
C707
10uF
0.1uF
10V
16V
C700
0.1uF
16V
AGND_PLL
VDD_PLL
DGND_PLL
C725
1uF
10V
SDATA
AUD_LRCH
AUD_LRCK
AUD_SCK
R703 100
AMP_SDA
R707 100
AMP_SCL
C705 C708
33pF 33pF
50V 50V
OPT
OPT
+3.3V_ST
D700
MMBD6100
A2
SB_MUTE
R701
C B
A1
10K
NTP_MUTE
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.
Copyright ⓒ 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
AMP_RST
C706
1000pF
50V
OPT
+19V
OPT
OPT
C712 C715 C718
C744
0.1uF 0.1uF 10uF
10uF
25V 50V 50V 25V
OUT1B
1 30
PGND1B
2 29
THERMAL
BST1B
3 41 28
GND VDR1
4 27
DGND VCC5
5 IC700 26
DVDD AGND
6 NTP7513 25
VDR2
7 24
0x54
WCK BST2A
8 23
BCK PGND2A
9 22
SDA OUT2A
10 21
+19V
TP700
OPT
TP701
C713 C714
C745
0.1uF 0.1uF
10uF
TP702
25V 50V 50V
C710
22000pF
50V
R705
10K
R709 100
C
Q700 OPT
MMBT3904(NXP) C709
1000pF
50V
E
L700-*1
10.0uH
NRS6045T100MMGK
L706-*1
10.0uH
NRS6045T100MMGK
L701-*1
10.0uH
NRS6045T100MMGK
L709-*1
10.0uH
NRS6045T100MMGK
R719 R715
L700
12 12
Audio_Coil_ABCO
10uH
C730
LPH6045T-100M
390pF
50V
L706
10uH Audio_Coil_ABCO
C731
390pF
50V LPH6045T-100M
R720 R704
12
12
C722
22000pF
50V
C727 C743 C726
1uF 1uF 1uF
25V 25V 25V
C723
22000pF
50V
R717 R712
12 L701
12
Audio_Coil_ABCO
10uH
C728 LPH6045T-100M
390pF
OPT
50V
C716 L709
10uH
10uF Audio_Coil_ABCO
C729
390pF
25V LPH6045T-100M
50V
R718 R702
12 12
Pop-up noise killer
+19V
AC KDS226
D710
R734
A C
220K
11.10.27
2.7K->220K
C742
4.7uF
50V
(OPT)Audio_Coil_TAIYO
(OPT)Audio_Coil_TAIYO
(OPT)Audio_Coil_TAIYO
(OPT)Audio_Coil_TAIYO
R727
C739
0.1uF
5.1K
50V
C735
0.47uF
50V
C740
0.1uF R728
50V
5.1K
SMAW250-H04R
4
JP704
3
JP705
2
JP706
1
JP707
WAFER-ANGLE
C737 R729
0.1uF 5.1K
C734 50V
0.47uF
50V
C738 R730
0.1uF 5.1K
50V
R736
470
C746
E 47uF
25V
MMBT3906(NXP)
121118
B Q702
R737 3K for SCART MUTE DEL
C 3K:
With SCART MUTE BLOCK
R737
12K
12K:
Without SCART MUTE BLOCK
SB_MUTE
R738
12K
NC4_S7LRM
AUDIO AMP
P700
SPK_L+
SPK_L-
SPK_R+
SPK_R-
EAX65410201
2013.05.25
7 12
LGE Internal Use Only