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LG 42LN549D Service Manual page 31

Chassis : lb3ax

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+5V_Normal
+3.3V_Normal
R713
4.7K
OPT
USB2_CTL
RGB PC
RGB_PC
R723
2.2K
NON_CI_CAP_RGB_PC
C721
18pF
50V
DSUB_VSYNC
DSUB_HSYNC
OPT
OPT
OPT
C720
OPT
C718
VA701
68pF
VA705
68pF
20V
20V
50V
50V
ADUC 20S 02 010L
ADUC 20S 02 010L
DSUB_B+
ADUC 20S 02 010L
RGB_PC
RGB_VARISTOR
R718
VA702
75
20V
DSUB_G+
ADUC 20S 02 010L
RGB_PC
RGB_VARISTOR
R719
VA703
75
20V
DSUB_R+
ADUC 20S 02 010L
RGB_PC
RGB_VARISTOR
R720
VA704
20V
75
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
OCP for USB_2
EAN61849601
USB2_MAG
IC702
L703-*1
AP2191DSG
MLB-201209-0120P-N2
120-ohm
+5V_USB_2
GND
NC
1
8
USB2_SS
L703
CIS21J121
IN_1
OUT_2
2
7
IN_2
OUT_1
3
6
EN
FLG
4
5
+5V_Normal
R714
10K
R715
47
USB2_OCD
+5V_Normal
RGB_PC
D710
MMBD6100
A2
C
A1
RGB_PC
NON_CI_CAP_RGB_PC
C724
R724
0 . 1 u F
2.2K
16V
RGB_DDC_SCL
RGB_DDC_SDA
OPT
VA706
5.6V
OPT
VA707
5.6V
+3.3V_Normal
RGB_PC
R729
RGB_PC
10K
R732
1K
DSUB_DET
OPT
VA708
5.6V
ADMC 5M 02 200L
JK705
SPG09-DB-010
RGB_PC
USB1
+5V_USB_1
USB1_DM
USB1_DP
C717
22uF
10V
USB2
+5V_USB_2
USB2_DM
USB2_DP
C719
22uF
10V
JP_GND
JP_GND1
JP_GND2
JP_GND3
JP_GND4
RS232C
+3.5V_ST
C701
0 . 3 3 u F
IC701
C706
MAX3232CDR
0 . 1 u F
C1+
VCC
1
16
C702
0 . 1 u F
V+
GND
2
15
C703
0 . 1 u F
C1-
DOUT1
3
14
C2+
RIN1
4
13
C704
0 . 1 u F
C2-
ROUT1
5
12
V-
DIN1
6
11
C705
0 . 1 u F
DOUT2
DIN2
7
10
RIN2
ROUT2
8
9
EAN41348201
SPDIF OPTIC JACK
5 . 1 5 M s t a r C i r c u i t A p p l i c a t i o n
SPDIF-JACK-SOLTEAM
JK702-*1
JST1223-001
GND
VCC
SPDIF_OUT
VINPUT
REAR COMPONENT/AV
COMP2_NON_ADC_FILTER
COMP2_ADC_FILTER
OPT
R740
C732
D720
75
47pF
20V
50V
COMP2_NON_ADC_FILTER
OPT
D721
5.6V
JK710
COMP2_ADC_FILTER_L
P P J 2 4 5 - 0 2
[GN]E-LUG
7E
COMP2_ADC_FILTER
OPT
[GN]C-SPRING
R741
6E
D722
C733
75
20V
47pF
[GN]CONTACT
4E
50V
[BL]C-SPRING
5D
[RD2]CONTACT
4C
[RD2]C-SPRING
6C
OPT
D723
COMP2_NON_ADC_FILTER
5.6V
[RD2]E-LUG-S
8C
[WH]C-SPRING
5B
[RD1]CONTACT
4A
COMP2_ADC_FILTER
R742
[RD1]C-SPRING
6A
75
C734
47pF
OPT
50V
[RD1]E-LUG
D724
7A
20V
R743
OPT
470K
D725
5.6V
R744
OPT
470K
D726
5.6V
JP719
JP718
IR_OUT
R710
100
JP708
R711
100
JP709
D704
D706
CDS3C30GTH
CDS3C30GTH
30V
30V
OPT
OPT
+3.5V_ST
SPG09-DB-009
D707
JK706
R712
BAP70-02
1K
50V
PM_RXD
PM_TXD
LA3AA
REAR JACKS
+3.3V_Normal
C707
C709
0 . 1 u F
100pF
16V
50V
L710-*1
0
COMP2_ADC_FILTER_L
L710
CM2012FR10KT
COMP2_Y+/AV_CVBS_IN
COMP2_ADC_FILTER
+3.3V_Normal
C735
47pF
50V
R759
R762
10K
1K
AV_CVBS_DET
C738
L711-*1
0
0 . 1 u F
16V
L711
CM2012FR10KT
COMP2_Pb+
COMP2_ADC_FILTER
+3.3V_Normal
C736
47pF
50V
R760
10K
R761
1K
COMP2_DET
C739
0 . 1 u F
L712-*1
16V
0
COMP2_ADC_FILTER_L
L712
CM2012FR10KT
COMP2_Pr+
COMP2_ADC_FILTER
C737
47pF
50V
R745
10K
AV_COMP_PC_L_IN
C730
R757
1000pF
12K
50V
READY
R756
10K
AV_COMP_PC_R_IN
READY
R758
C731
12K
1000pF
50V
10
5
9
4
8
3
7
2
6
1
2 0 1 3 . 0 2 . 2 8
7
LGE Internal Use Only

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