LG 22LN45 Series Service Manual page 32

SCART / COMPONENT&CVBS
COMPONENT&CVBS
R2822
D2814
75
20V
120927
OPT->APPLY
OPT
D2817
5.6V
[GN]E-LUG
6A
[GN]O-SPRING R2824
D2812
75
20V
5A JP2810
120927
[GN]CONTACT
OPT->APPLY
4A
JP2811
[BL]E-LUG-S
7B
[BL]O-SPRING
5B
[RD]E-LUG-S JP2814
R2823
75
D2813
7C
20V
[RD]O-SPRING_1
120927
5C
JP2815 OPT->APPLY
[RD]CONTACT_1
4C
5D OPT
[WH]O-SPRING JP2812 R2825
D2815
5.6V 470K
4E
[RD]CONTACT_2
5E
[RD]O-SPRING_2
JP2813
OPT
6E
[RD]E-LUG D2816
5.6V R2826
PPJ234-05
470K
JK2800
FULL SCART
120927
OPT->APPLY
22
SCART JACK
AV_DET
D2801
21 20V
COM_GND
JP2802
20
JP2803
SYNC_IN
19
OPT
SYNC_OUT
D2802 OPT
18 20V D2809
SYNC_GND2
20V
17
JP2804
SYNC_GND1
16
RGB_IO
JP2805
SCART JACK
15
R_OUT D2803
120927
14 20V
OPT->APPLY
RGB_GND
13
R_GND
12
D2B_OUT
11 SCART JACK
G_OUT D2B_IN D2804
120927
10 OPT->APPLY 20V
G_GND
9
ID JP2800
8
B_OUT
JP2801
7
SCART JACK
AUDIO_L_IN JP2806
D2805
6 20V
B_GND
5
AUDIO_GND 120927
OPT->APPLY
4
AUDIO_L_OUT JP2807
3
AUDIO_R_IN JP2808
2
AUDIO_R_OUT OPT
JP2809
D2806
1
20V
SCART JACK
JK2801
PSC008-01
OPT
D2808
20V
OPT
D2807
20V
OPT
D2800
20V
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
COMP_NON_ADC_FILTER
L2807-*1
COMP_ADC_FILTER_L
0
L2807
CM2012FR10KT
COMP_ADC_FILTER COMP_ADC_FILTER
+3.3V_Normal
C2829
C2830
47pF
47pF
50V
50V
R2837
R2838
10K
1K
C2813
0.1uF
COMP_NON_ADC_FILTER
16V
L2806-*1
0
COMP_ADC_FILTER_L
L2806
CM2012FR10KT
COMP_ADC_FILTER
COMP_ADC_FILTER
C2827 C2828
47pF 47pF
50V 50V
COMP_NON_ADC_FILTER
COMP_ADC_FILTER_L
L2805-*1
L2805
0
CM2012FR10KT
COMP_ADC_FILTER
+3.3V_Normal
COMP_ADC_FILTER
C2825
C2826
47pF
47pF
50V
50V
R2841
10K R2842
1K
R2832
10K
OPT
COMP_L_IN
D2818
C2810
R2834
5.6V
1000pF 12K
50V
121107 OPT->APPLY
To solve EMS Issue
R2831
10K
COMP_R_IN
R2833
C2811 12K
1000pF
121107 OPT->APPLY
50V
To solve EMS Issue
+3.3V_Normal
SCART JACK
R2808 SCART JACK
4.7K
R2810
1K
SCART1_DET
OPT
D2810
20V
SCART JACK
R2809
0
SC1_SOG_IN
SCART JACK E
Q2800
MMBT3906(NXP)
SC1_CVBS_IN B
OPT
SCART JACK C
SCART JACK C2802
C2800 SCART JACK
R2807 220pF
SCART JACK
47pF
75
50V R2821 R2856
50V
200 200
SCART JACK
SCART JACK
C2809
SCART JACK 100uF SCART JACK
R2816
16V R2820 R2857
75 0 360
SCART JACK
R2815
Rf
22
Gain=1+Rf/Rg
SC1_FB
SCART_ADC_FILTER_L
SCART JACK
L2808
R2811
CM2012FR10KT 75
SCART JACK SCART_ADC_FILTER SCART_ADC_FILTER SC1_R+
C2831 C2832
R2806
75 47pF 47pF
SCSRT_NON_ADC_FILTER
50V 50V
L2808-*1
SCART_ADC_FILTER_L 0
L2809
CM2012FR10KT
SC1_G+
SCART_ADC_FILTER
SCART JACK SCART_ADC_FILTER
C2833 C2834
R2802
SCART_NON_ADC_FILTER
47pF 47pF
75 L2809-*1
50V 50V SCART JACK
0
R2814
SCART_ADC_FILTER_L
L2810
CM2012FR10KT
SC1_B+
D2811
SCART JACK SCART_ADC_FILTER SCART_ADC_FILTER
20V
C2835 C2836
R2803
SCART_NON_ADC_FILTER SCART JACK
75 47pF 47pF
L2810-*1
50V 50V
0
SCART JACK
R2812
10K
SC1_L_IN
SCART JACK SCART JACK SCART JACK
C2805
R2804 R2818
470K 1000pF 12K
50V
121107 OPT->APPLY
To solve EMS Issue
SCART JACK
R2813
10K
SC1_R_IN
SCART JACK
SCART JACK SCART JACK
C2806
R2805
R2819
1000pF
470K
12K
50V
121107 OPT->APPLY
To solve EMS Issue
DTV/MNT_L_OUT
OPT OPT
C2803 C2807
1000pF 4700pF
50V
DTV/MNT_R_OUT
OPT
OPT
C2808
C2804
4700pF
1000pF
50V
SCART AMP
COMP_Y+/AV_CVBS_IN
AV_CVBS_DET
COMP_Pb+
COMP_Pr+
COMP_DET
+19V_SCART
SCART JACK SCART JACK SCART JACK
R2828
C2815
C2814
470
0.1uF
10uF
50V
25V
SCART JACK
SCART JACK
Q2801
R2829
MMBT3904(NXP)
47K SCART JACK
C
C2812
SCART JACK
B 47uF
R2858
25V
100
DTV/MNT_VOUT
E
SCART JACK
R2830
15K
SCART JACK
Rg R2827
180
Q2805
SCART JACK
MMBT3904(NXP)
Q2806
SCART JACK
MMBT3906(NXP)
R2800
3 1
C2818 SCART1_MUTE
2K R2836
0.1uF
SCART JACK 10K
2
50V
SCART JACK
SCART JACK
R2835
10K
SCART JACK
15K
SC1_ID
SCART JACK
R2817
3.9K
DTV/MNT_L_OUT SCART JACK
R2847
2.2K OUT1
SCART JACK
SCART JACK
R2852
C2821
33K INV_IN1
10uF
SCART JACK
10V
SCART JACK
C2820 SCART JACK
C2823
NON_INV_IN1
+19V_SCART 330pF R2845
33pF
220K SCART JACK
R2848
5.6K
SCART1_Lout
VCC
SCART JACK
C2817
R2849
0.1uF NON_INV_IN2
5.6K
50V
SCART1_Rout
SCART JACK
R2853
SCART JACK SCART JACK
INV_IN2
33K
C2819 R2843
220K
330pF
SCART JACK
SCART JACK
C2824 33pF OUT2
R2846
2.2K
C2822
10uF
DTV/MNT_R_OUT
10V
SCART JACK
[SCART AUDIO MUTE]
DTV/MNT_L_OUT OPT(EU_SCART mute)
R2839
OPT(EU_SCART mute) 2K
Q2802 OPT(EU_SCART mute)
Q2804
MMBT3904(NXP)
MMBT3906(NXP)
OPT(EU_SCART mute)
3 1
DTV/MNT_R_OUT
R2840
2K
OPT(EU_SCART mute)
2
Q2803
MMBT3904(NXP)
SCART JACK
IC2800
SN324
OUT4
1 14
INV_IN4
2 13
NON_INV_IN4
3 12
GND
4 11
NON_INV_IN3
5 10
INV_IN3
6 9
OUT3
7 8
+3.3V_ST
OPT(EU_SCART mute)
R2844
10K
OPT(EU_SCART mute)
D2819
MMBD6100
A2
SCART1_MUTE
C
A1
SB_MUTE
C2816
0.1uF
OPT(EU_SCART mute)
EAX65077401
GP4L_S7LR2
2012.09.15
SCART&COMP 28 12
LGE Internal Use Only