LG 55UB820T Service Manual page 42

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Copyright © 2014 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Full Scart(18 Pin Gender)
VA2101
5.6V
OPT
75
VA2107
R2105
5.5V
SHIELD
3216
EU
EU
19
AV_DET
18
COM_GND
VA2108
5.5V
17
SYNC_IN
OPT SCART_OUT_BYPASS
75
16
SYNC_OUT R2102
15
SYNC_GND
14
RGB_IO
13
R_OUT
VA2102
5.6V
12
R_GND
EU EU
R2108
11
G_OUT
75
10
G_GND
9
ID
EU
8
VA2103
R2106
B_OUT
5.5V
75
7
EU
AUDIO_L_IN
6
B_GND
5
AUDIO_GND
EU
4
VA2104
AUDIO_L_OUT R2109
5.5V 75
3
AUDIO_R_IN EU
2
AUDIO_R_OUT
1
EU
VA2105
R2107
5.5V 75
DA1R018H91E
EU
JK2100
EU
EU
R2103
10K
VA2109 R2110
VA2100 EU
5.6V 12K
20V R2100
EU EU
470K
EU
EU
R2104
10K
R2111
EU
12K
VA2106 R2101
EU
470K
5.6V
EU
EU
C2100
1000pF
50V
EU
C2101
1000pF
50V
+3.3V_CVBS_out
+3.3V_NORMAL
L2100
BLM18PG121SN1D
EU_CVBSOUT
+3.3V_NORMAL
EU
CLOSE TO JUNCTION
R2114
10K EU
EU_CVBSOUT
R2116
R2118
1K
10K
SC_DET
CVBS_OUT_SEL
1/16W
EU
5%
C2106
0.1uF
SC_CVBS_IN
OPT
+3.3V_CVBS_out
C2102
47pF
50V
EU
R2113
0
DTV/MNT_V_OUT1
OPT OPT
C2103 C2107
68pF 68pF
50V 50V
EU
R2112
22
EU_CVBSOUT
SC_FB
R2124
75
DTV/MNT_V_OUT1
SC_R
DTV/MNT_V_OUT1
SC_G
SC_B
EU
R2115
15K
SC_ID
EU
SC_L_IN R2117
3.9K
SC_R_IN
DTV/MNT_L_OUT
DTV/MNT_R_OUT
+3.3V_CVBS_out
OPT
C2108 EU_CVBSOUT
1uF R2127
0
CVBS_OUT_SEL
1/16W
5%
C
B Q2100
2SC3052
EU_CVBSOUT
E
E EU_CVBSOUT
DTV/MNT_V_OUT MMBT3906(NXP)
B Q2102
C
E
EU_CVBSOUT
ATV_OUT
MMBT3906(NXP)
B Q2104
C
EU_CVBSOUT
C2110
1uF C2114
EU_CVBSOUT
0.1uF
IC2100 C2109
EU_CVBSOUT
MM1756DURE(4M) 0.1uF
VCC IN
6 1
EU_CVBSOUT
PS GND
5 2
OUT BIAS
4 3
EU_CVBSOUT
C2111
4.7uF
SCART_OUT_BYPASS
R2128
0
DTV/MNT_V_OUT
1/16W
5%
0 1
CVBS_OUT_SEL
DTV_MNT_V_OUT1 DTV OUT ATV OUT
UB83
SCART JACK
OPT
C2112
1uF
10V
2013-10-28
21
LGE Internal Use Only