LG 22LN45 Series Service Manual page 26

AUDIO AMP
+3.3V_AMP
R716
0
C707
0.1uF
16V
OPT
C701
C700
0.1uF
0.1uF
16V
16V
12.08.09
OPT
C704 C725
0.1uF 1uF
16V 10V
AUD_LRCH
AUD_LRCK
AUD_SCK
100
R703
AMP_SDA
R707
100
AMP_SCL
C705 C708
33pF 33pF
50V 50V
D700
MMBD6100
A2
SB_MUTE
A1
NTP_MUTE
Headphone block
+3.3V_Normal
R706
47K
VA703
20V
OPT
6 M6
JP700
1 M1 JP702
3 M3_DETECT
JP703
VA701
4 M4
JP701
20V
5 M5_GND
KJA-PH-1-0177-2
JK700
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 rights reserved.
Only for training and service purposes
AMP_RST
C706
1000pF
50V
+19V_AMP_VCC
AUD_MASTER_CLK
C712
0.1uF
C702
50V
10uF
10V
AGND_PLL OUT1B
1 30
VDD_PLL PGND1B
2 29
THERMAL
DGND_PLL BST1B
3 28
41
GND VDR1
4 27
DGND VCC5
5 IC700 26
DVDD AGND
6 NTP7513 25
SDATA VDR2
7 24
0x54
WCK BST2A
8 23
BCK PGND2A
9 22
SDA OUT2A
10 21
TP700
TP701
C713
TP702
0.1uF
50V
C710
22000pF
50V
+3.3V_ST
R705
10K
R709 100
C
R701 Q700
C B
MMBT3904(NXP)
C709
10K 1000pF
OPT
E 50V
R708
33K
R710
1K
HP_DET
C719
R713 1000pF
1K
Q701 50V
C
E
OPT
MMBT3904(NXP)
B Q705
MMBT3904(NXP)
B
E
C
C717
R711
C
E 1000pF
1K
Q703 50V
B Q704
MMBT3904(NXP) OPT
MMBT3904(NXP)
B
VA702
E
C
20V
R739
0
MUTE control
1/16W
5%
12.08.16
12.11.07
Added by JCPark
1K->0 by JHShin
to solve pop-noise issue
OPT
R700
3.3
OPT
C703
C715 C718
0.01uF
0.1uF 10uF
50V
50V 25V
D706
1N4148W R719 R715
12 12
100V
OPT
C730
390pF
50V
C731
390pF
50V
D707
R704
1N4148W R720
12
100V 12
OPT
C722
22000pF
50V
C727 C743 C726
1uF 1uF 1uF
25V 25V 25V
C723
22000pF
50V
+19V_AMP_VCC
D704 R712
R717
1N4148W 12 12
100V
OPT
C728
390pF
50V
C714 C716
C729
0.1uF 10uF
390pF
50V 50V
25V D705
1N4148W
R718 R702
100V
12 12
OPT
HP_LOUT Pop-up noise killer
C720
10uF
10V
+19V
R734
HP_ROUT 220K
11.10.27
2.7K->220K
C721
10uF
10V
C742
+3.3V_ST
4.7uF
50V
Q706
MMBT3906(NXP)
D709
MMBD6100
C
A2
R714 SB_MUTE
R733
B C
3.3K
A1
10K
HP_MUTE
Q707
E
MMBT3904(NXP)
L700-*1
10.0uH
Audio_Coil_TAIYO
NRS6045T100MMGK
L706-*1
10.0uH
Audio_Coil_TAIYO
NRS6045T100MMGK
L701-*1
10.0uH
Audio_Coil_TAIYO
NRS6045T100MMGK
L709-*1
10.0uH
Audio_Coil_TAIYO
NRS6045T100MMGK
L700
Audio_Coil_ABCO R727
10uH C739
0.1uF
5.1K
50V
LPH6045T-100M
C735
0.47uF
L706
50V
10uH Audio_Coil_ABCO
C740
LPH6045T-100M
0.1uF R728
50V
5.1K
JP704
JP705
JP706
JP707
L701
Audio_Coil_ABCO
10uH
C737 R729
LPH6045T-100M 0.1uF 5.1K
C734
50V
0.47uF
L709 50V
10uH Audio_Coil_ABCO
LPH6045T-100M
C738 R730
0.1uF 5.1K
50V
AC KDS226
D710
A C
R736
470
C724
47uF
E
25V
MMBT3906(NXP)
B Q702
3K:
R737-*1
C
With SCART MUTE BLOCK
OPT 3K
R737
R735 SCART MUTE ON
12K 12K:
220K SCART MUTE OFF Without SCART MUTE BLOCK
SB_MUTE
11.10.27
Apply->OPT
R738
12K
P700
SMAW250-H04R
4 SPK_L+
3
SPK_L-
2
SPK_R+
1 SPK_R-
WAFER-ANGLE
EAX65077401
NC4_S7LRM
2012.09.15
AUDIO AMP 7 12
LGE Internal Use Only