Read LG 42LN549D (CHASSIS:LB3AX) Service Manual online
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.
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.
1K
RGB_PC
R732
100
R711
DSUB_DET
J P 7 0 8
0 . 1 u F
C706
100
R710
68pF
50V
50V
OPT
C718
ADMC 5M 02 200L
5.6V
OPT
VA708
VA708
68pF
50V
50V
OPT
C720
5.6V
OPT
VA707
PM_TXD
MMBD6100
RGB_PC
D710
A2
C
A1
1K
R712
+3.3V_Normal
+3.3V_Normal
J P 7 0 9
+3.5V_ST
0 . 1 u F
C703
0 . 3 3 u F
C701
DSUB_HSYNC
0 . 1 u F
16V
NON_CI_CAP_RGB_PC
C724
DSUB_B+
DSUB_VSYNC
ADUC 20S 02 010L
20V
OPT
VA705
DSUB_G+
PM_RXD
100pF
50V
50V
C709
ADUC 20S 02 010L
20V
RGB_VARISTOR
VA703
0 . 1 u F
C705
18pF
50V
NON_CI_CAP_RGB_PC
C721
0 . 1 u F
C702
ADUC 20S 02 010L
20V
RGB_VARISTOR
VA702
2.2K
RGB_PC
R723
ADUC 20S 02 010L
20V
RGB_VARISTOR
VA704
RGB_DDC_SDA
CDS3C30GTH
30V
30V
OPT
D704
ADUC 20S 02 010L
20V
OPT
VA701
RGB_DDC_SCL
75
RGB_PC
R718
75
RGB_PC
R719
10K
RGB_PC
R729
5.6V
OPT
VA706
75
RGB_PC
R720
2.2K
RGB_PC
R724
0 . 1 u F
16V
16V
C707
BAP70-02
50V
D707
+3.5V_ST
+5V_Normal
EAN41348201
MAX3232CDR
IC701
3
C1-
2
V+
4
C2+
1
C1+
6
V-
5
C2-
7
DOUT2
8
RIN2
9
ROUT2
10
DIN2
11
DIN1
12
ROUT1
13
RIN1
14
DOUT1
15
GND
16
VCC
SPG09-DB-009
JK706
1
2
3
4
5
6
7
8
9
10
0 . 1 u F
C704
IR_OUT
Fiber Optic
JST1223-001
SPDIF-JACK-SOLTEAM
JK702-*1
1
GND
2
VCC
3
VINPUT
4
FIX_POLE
CDS3C30GTH
30V
30V
OPT
D706
DSUB_R+
Fiber Optic
2F01TC1-CLM97-4F
SPDIF-JACK-FOXCONN
JK702
3
VIN
2
VCC
1
GND
4
SHIELD
18pF
50V
NON_CI_CAP_RGB_PC
C723
SPG09-DB-010
RGB_PC
JK705
1
RED
2
GREEN
3
BLUE
4
GND_1
5
DDC_GND
6
RED_GND
7
GREEN_GND
8
BLUE_GND
9
NC
10
SYNC_GND
11
GND_2
12
DDC_DATA
13
H_SYNC
14
V_SYNC
15
DDC_CLOCK
16
SHILED
SPDIF_OUT
JP_GND1
JP_GND2
JP_GND3
JP_GND4
USB1_DM
USB2_DP
+5V_USB_2
+5V_USB_1
USB DOWN STREAM
3AU04S-305-ZC-(LG)
JK703
1
2
3
4
5
RCLAMP0502BA
OPT
D709
USB DOWN STREAM
3AU04S-305-ZC-(LG)
JK704
1
2
3
4
5
USB1_DP
RCLAMP0502BA
OPT
D708
USB2_DM
CIS21J121
USB2_SS
L703
47
R715
MLB-201209-0120P-N2
120-ohm
USB2_MAG
L703-*1
4.7K
OPT
R713
+5V_Normal
+3.3V_Normal
USB2_OCD
AP2191DSG
EAN61849601
IC702
3
IN_2
2
IN_1
4
EN
1
GND
5
FLG
6
OUT_1
7
OUT_2
8
NC
10K
R714
USB2_CTL
+5V_USB_2
+5V_Normal
22uF
10V
C717
22uF
10V
C719
J P 7 1 8
J P 7 1 9
5.6V
D721
OPT
CM2012FR10KT
L712
COMP2_ADC_FILTER_L
0
L710-*1
COMP2_NON_ADC_FILTER
0
L711-*1
COMP2_NON_ADC_FILTER
10K
R760
470K
R744
COMP2_Y+/AV_CVBS_IN
+3.3V_Normal
12K
R758
20V
D724
OPT
10K
R756
P P J 2 4 5 - 0 2
JK710
6A
[RD1]C-SPRING
7A
[RD1]E-LUG
4A
[RD1]CONTACT
5B
[WH]C-SPRING
8C
[RD2]E-LUG-S
6C
[RD2]C-SPRING
4C
[RD2]CONTACT
5D
[BL]C-SPRING
4E
[GN]CONTACT
6E
[GN]C-SPRING
7E
[GN]E-LUG
10K
R745
47pF
50V
50V
C732
COMP2_ADC_FILTER
10K
R759
AV_CVBS_DET
1000pF
50V
50V
C731
READY
5.6V
D723
OPT
75
R740
0 . 1 u F
16V
C738
20V
D720
OPT
+3.3V_Normal
COMP2_Pb+
47pF
50V
50V
C733
COMP2_ADC_FILTER
47pF
50V
50V
C735
COMP2_ADC_FILTER
AV_COMP_PC_R_IN
0
L712-*1
COMP2_NON_ADC_FILTER
1K
R762
COMP2_DET
1000pF
50V
50V
C730
READY
COMP2_Pr+
AV_COMP_PC_L_IN
47pF
50V
50V
C736
COMP2_ADC_FILTER
CM2012FR10KT
L710
COMP2_ADC_FILTER_L
75
R741
20V
D722
OPT
47pF
50V
50V
C734
COMP2_ADC_FILTER
1K
R761
75
R742
5.6V
D726
OPT
5.6V
D725
OPT
47pF
50V
50V
C737
COMP2_ADC_FILTER
470K
R743
12K
R757
CM2012FR10KT
L711
COMP2_ADC_FILTER_L
0 . 1 u F
16V
C739
RS232C
RGB PC
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 OPTIC JACK
REAR JACKS
7
LA3AA
2 0 1 3 . 0 2 . 2 8
JP_GND
USB2
USB1
OCP for USB_2
REAR COMPONENT/AV
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