LG 42LC7D Service Manual page 41

MAIN VIDEO DECODER
VH_C/B[0-9]
+3.3V_UPD_MAIN_D
+1.5V_UPD_MAIN
+3.3V_UPD_MAIN_A1
C942
C941
22uF
0.1uF 16V
16V 16V
16V
16V
+3.3V_UPD_MAIN_A2
C920 0.1uF
133
DVDD1
134
DYMI
135
DCGI
136 DCBI
137
C921 0.1uF DCRI
138
R922 AVDD1
C906 0.1uF 47K 139
ATS1
R923 47K 140
ATS2
C907 C915 0.1uF 141
AVDD3
R924 47K 142
ATS3
10uF
143
AGND
144
AGND
145
AGND
146
C923 VCLY
0.1uF 147
R917 VCOM1
750 C909 0.01uF 148
M_CVBS AVI
C924 0.1uF
149
VLPF1
150
C925 ASYI
0.1uF 151
VRB1
152
C926 ACYI
0.1uF 153
VRT1
154
C916 0.1uF ACSI
155 UPD64015AGM-UEU-A
AVDD3
C917 0.1uF
156
C927 AVDD3
0.1uF 157
C912 0.01uF VRT2
M_C_IN 158
C928 ASCI
R920 750 0.1uF 159
C929 VRB2
0.047uF 160
AGI
C937 0.1uF 161
VCOM2
162
C930 0.1uF ACBI
163
C938 VRT3
0.047uF 164
C931 ABI
0.1uF 165
C932 VRB3
0.1uF 166
0.1uF VCOM3
C918 167
0.1uF AVDD3
C919
168 AVDD3
C933 0.1uF
169
VCOM4
170
C934 ACRI
0.1uF 171
C939 VLPF2
0.047uF 172
C935 ARI
0.1uF 173
VRB4
C936 0.1uF 174
VRT4
175
AGND
176
AGND
+5.0V
IC900
LA7217M
L900
NC1 NC2
1 14 R928 560
FI-C3216-103KJT
C903 1uF
VIDEO_IN VCC X900 16V 16V 16V
10V 2 13 R929 47
C922
F.B_CLAMP AFC_CTL 500KHZ
C904 56000pF 3 12 1uF
50V
SYNC_OUT VCO_OUT
4 11
R908 +3.3V_UPD_MAIN_A1
330K VD_OUT VCO_IN
5 10
GND HD_OUT
6 9
R935 1K
C905 22000pF EXC DET_OUT
E 7 8 SYNC_DE
R900
Q900 R921 R933 OPT
E
100 B 2SA1504S 100
Q901
C B 2SA1504S
C
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.
MSP4450K
9VDD_MSP4440
5VDD_MSP4440
5VDD_MSP4440
L1100
22uH AVSUP0
C1100
C1102
47uF AVSUP1
0.1uF C1108
0.1uF 16V 56pF
C1107 ANA_IN1+
C1109 56pF
C1101 C ANA_IN-
0.1uF
SIF B Q1100 C1110 56pF ANA_IN2+
2SC3875S
E +3.3V C1105 X1100 TESTEN
2pF 18.432MHz
XTAL_IN
R1109 XTAL_OUT
C1106 OPT
2pF
AUD_CL_OUT
I2S_MCLK
R1108
C1103 MSP4450K_SPDIF
R1106 0 SPDIF_OUT
1K 0.1uF
DCTRI/O_1
DCTRI/O_0
R1110
ADR_SEL
0
STANDBYQ
MICOM_RESET
C1111
OPT
C1112
OPT
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.
VH_Y/G[0-9]
VH_C/B[0-9]
+5.0V
IC902
AZ1117H-3.3
INPUT 3 1 ADJ/GND
2 $0.06
+1.5V_UPD_MAIN +3.3V_UPD_MAIN_A1
C973 OUTPUT
0.1uF
16V
C971 L902
47uF MLB-201209-0120P-N2
+3.3V_UPD_MAIN
16V C974 C979 +3.3V_UPD_MAIN_A2
16V
0.1uF 47uF
L903
MLB-201209-0120P-N2
16V
16V
+3.3V_UPD_MAIN_A3
+3.3V_UPD_MAIN_A3
C975 C980
0.1uF 47uF
L904
MLB-201209-0120P-N2
+3.3V_UPD_MAIN_D
C976 C981
0.1uF 47uF
C961 0.1uF
DVDD3 L905
88
MLB-201209-0120P-N2
ROY8 87
ROY9 86
ROY10 85
+3.3V_UPD_MAIN
ROY11
84 C977 C982
ROY12 0.1uF 47uF
83
ROY13 L906
82 C965 0.1uF MLB-201209-0120P-N2
DVDD1 81
DGND 80
R964 4.7K
ROFDIE 79
FCLK8 78 C978 C983
R965 1K
FCKM 0.1uF 47uF
77 C962 0.1uF
DVDD1
76
RGRED R966 47K
75
R968 22 SYS_RESET
RSTB 74
R963 0
SLA0 73
R969 22
SDA 72 SDA_CH3
R970 22
SCL SCL_CH3
IC901 71 C969 0.1uF +3.3V_UPD_MAIN
DVDD1
70
AGNDA
69
IOCR 68 0.1uF
C966
AVDDA 67
AGNDA 66
IOCB 65
C967 0.1uF
AVDDA
64
AGNDA
63
$ 6.5 IOYG 62 C968 0.1uF C985 0.1uF VDD_1
AVDDA 61
R967 620 C970 C972 UPD_M_SDRDQ[0] DQ0
RSET 60 18pF 18pF
REF 59
50V 50V UPD_M_SDRDQ[1] DQ1
AGNDA
58 C963 0.1uF
DVDDD1 M12L16161A-5TG[SHRINK 0.11UM] VSSQ_1
57 X901
DGND
56 24.576MHz UPD_M_SDRDQ[2] DQ2
XI 55
UPD_M_SDRDQ[3] DQ3
XO 54 C964 0.1uF
DVDD3 53
UPD_M_SDRDQ[15] C986 0.1uF VDDQ_1
SDRDQ15
52 UPD_M_SDRDQ[0]
SDRDQ0 UPD_M_SDRDQ[4] DQ4
51 UPD_M_SDRDQ[14]
SDRDQ14 50
UPD_M_SDRDQ[1] UPD_M_SDRDQ[5] DQ5
49
SDRDQ1 C960
48 DVDD1 0.1uF VSSQ_2
UPD_M_SDRDQ[13]
47 SDRDQ13
SDRDQ2 UPD_M_SDRDQ[2] UPD_M_SDRDQ[6] DQ6
46
45 DGND UPD_M_SDRDQ[7] DQ7
C987 0.1uF VDDQ_2
LDQM
WE
UPD_M_SDRWE
UPD_M_SDRCAS CAS
UPD_M_SDRRAS RAS
CS
UPD_M_SDRCS
UPD_M_SDRA[10] BA
UPD_M_SDRABP
A10/AP
16V 16V 16V 16V 16V 16V UPD_M_SDRA[0] A0
UPD_M_SDRA[1] A1
UPD_M_SDRA[2] A2
UPD_M_SDRA[3] A3
VDD_2
UPD_M_SDRDQ[0-15]
UPD_M_SDRA[0-10]
UPD_M_SDRABP
+3.3V_UPD_MAIN
UPD_M_SDRCS
UPD_M_SDRCKE
R971 5.1K
UPD_M_SDRRAS
UPD_M_SDRCLK
R972 2.2K
UPD_M_SDRCAS
C984 16V
0.1uF
UPD_M_SDRWE
0.47uF
C1141
COMP_L_IN_1
R1142
470K
C1142 0.47uF
COMP_L_IN_2
R1143
470K
C1140 0.47uF
COMP_R_IN_1
R1144
470K
C1139 0.47uF
COMP_R_IN_2
R1145
470K 9VDD_MSP4440
C1135
3.3uF
50V
C1137
L1101 100uF
22uH 16V
C1113 C1115 C1136
3.3uF 0.01uF
0.1uF
50V
Q1101
E
2SA1504S
C1138
C1143
10uF B
10uF
C
16V 16V
9VDD_MSP4440
E
2SA1504S
B Q1103
CAPL_M
C
65 40 AHVSUP
66 39
CAPL_A
C1145
67 38 SC1_OUT_L 4.7uF
50V
68 37 R1151
SC1_OUT_R
IC1100 Q1104 2.2K
69 36 VREF1
2SA1504S
70 35 SC2_OUT_L E
R1139 220
71 MSP4450K-QA-D6 34 SC2_OUT_R R1140 220 B
C
72 33 DACM_SL Q1106
TP
2SC3875S
73 32
DACM_SR
IIC CH4 0x80
C1144
74 31 DACM_SUB
NC5 4.7uF
50V
75 30
DACM_C R1152
76 29 DACM_L 2.2K
77 28 E
DACM_R
2SA1504S
78 27 VREF2 B Q1102
79 26 DACA_L C
Q1105
80 25 2SC3875S
R1113 R1114 R1119 R1120 R1123
22 22 220 220 220
L1102
22uH
R1134
100
C1134
470pF
C1119
22uF 0.01uF
16V
C1126
0.1uF 100pF HA_DAC_LRCH
C1124 C1129
SDA_CH4 HA_DAC_LRCK
SCL_CH4 HA_DAC_SCK
LVDS
+3.3V
+6.0V
+1.5V_UPD_MAIN IC904
AZ1117H-1.5TRE1
ADJ/GND INPUT
OUTPUT
$0.06
$0.06
C994 IC1000
C993 0.1uF AZ1117H-3.3
47uF
INPUT 3 1 ADJ/GND
MLB-201209-0120P-N2
L907 OUTPUT
C1001
0.1uF 2 C1002
16V 16V 0.1uF
C989 C990 C1000
C988 47uF
0.1uF 47uF 0.1uF 16V
UPD_M_SDRDQ[0-1 5]
VSS_2
1 50
DQ15 UPD_M_SDRDQ[15]
2 49
DQ14 UPD_M_SDRDQ[14]
3 IC903 48
VSSQ_4
4 47
DQ13 UPD_M_SDRDQ[13]
5 46
$ 0.4607 DQ12 UPD_M_SDRDQ[12]
6 45
VDDQ_4 C991 0.1uF
7 44
DQ11 UPD_M_SDRDQ[11]
8 43
DQ10 UPD_M_SDRDQ[10]
9 42
VSSQ_3
10 41
DQ9 UPD_M_SDRDQ[9]
11 40
DQ8 UPD_M_SDRDQ[8]
12 39
VDDQ_3 C992 0.1uF
13 38
NC/RFU
14 37
UDQM
15 36
CLK R973 22
16 35 UPD_M_SDRCLK
CKE
17 34
UPD_M_SDRCKE
NC
18 33
A9 UPD_M_SDRA[9]
19 32
A8 UPD_M_SDRA[8]
20 31
A7 UPD_M_SDRA[7]
21 30
A6 UPD_M_SDRA[6]
22 29
A5 UPD_M_SDRA[5]
23 28
A4 UPD_M_SDRA[4]
24 27
VSS_1
25 26
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.
NTP3000
3.3VST_MICOM
3.3VST_MICOM
R1225
R1156
MSP4410_ANALOG_L R1226
22 B
0
C
R1224
33K B Q1200
AC_DET
2SC3875S
R1155 0 E
MSP4410_ANALOG_R
MICOM_RESET
R1162
MNT_L_OUT 1.8VDD_DAMP
1.5K
C1200
100pF
C
R1159
B
LFM
1K
R1200
E C1201
3.3K
1000pF 0.1uF
C1202
R1161
MNT_R_OUT
1.5K
C
B R1158 R1163
MUTE1
1K 100
E
XDR_DATA_B[0-9]
XDR_DATA_R[0-9]
XDR_DATA_G[0-9]
+3.3V_LVDS
XDR_DATA_B[4] R1002 68
C1005
10uF
25V
R1007 68 TB6
+3.3V_LVDS XDR_DATA_B[5]
AR1003 TC0
XDR_DATA_B[6]
XDR_DATA_B[7]
VCC
XDR_DATA_B[8]
XDR_DATA_B[9]
TC1
68
TC2
LCD : R1008 22 ohm, R1009 OPT
PDP : R1009 22 ohm, R1008 OPT TC3
R1008 22 TC4
XDR_HS_OUT
L1001
MLB-201209-0120P-N2 R1009 OPT GND
DELAYED_XDR_VS
R1010 22 TC5
C1004 XDR_VS_OUT
C1003 0.1uF R1000
10uF OPT R1011 22 TC6
25V 16V XDR_DE_OUT R1018
AR1004
XDR_DATA_R[2] OPT TD0
R1001
XDR_DATA_R[3]
XDR_DE_OUT2 XDR_DATA_G[2] R1015 R/F
0
XDR_DATA_G[3] 0
TD1
68
TD2
TD3
XDR_DATA_B[2] R1006 68 TD4
R1005
XDR_DATA_B[3] 68
XDR_DATA_R[0]
XDR_DATA_R[1]
AR1005
XDR_DATA_G[0]
XDR_DATA_G[1]
68
AR1006
XDR_DATA_B[0]
XDR_DATA_B[1]
R1016
68 XDR_FID_OUT
+19.0V
R1206
3.3
C1212
C1217
005:I8 330uF
0 35V 0.1uF
R1228 NTP_FAULT
C1219
R1227
0.01uF
C1213
0.1uF
+3.3V
C
C1214
Q1201
0.1uF
2SC3875S
E
C1215
R1229 C1207
OPT 22000pF
0.1uF C1211
22000pF
C1221
1uF
R1201
0
1uF
C1206 C1208
OPT
1uF
42 C1224
1
2 41
L1200 40
3
C1223
4 39
22000pF
5 38
6 IC1200 37
I2S_MCLK
C1203 7 36
10uF NTP3000
35
16V 8
9 34
IIC CH4 33
10
0x54
11 32
1.8VDD_DAMP LFM
12 31
13 30
0.1uF 0.1uF
14 29 C1225 C1227
L1201
C1205
C1204
10uF
0.1uF 16V
+19.0V
C1222 C1226
22000pF
330uF
1uF 35V
C1220
I2S_DATA
I2S_LRCK
I2S_SCK
R1204 100
SDA_CH4
SCL_CH4
R1205
100
1.8VDD_DAMP
NTP_FAULT
L1202
C1209 C1210
33pF 33pF
C1218
0.1uF 10uF
C1216
16V
Place close to Vcc Pin
+3.3V_LVDS
L1003
MLB-201209-0120P-N2
C1014 C1021
1000pF
10uF
16V
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
32
LVDSGND
TA- 31 R1035 0 TXC0-
TA+ 30 R1036 0 TXC0+
TB- 29 R1037 0 TXC1-
TB+ 28 R1038 0 TXC1+
LVDSVCC 27
IC1001
LVDSGND 26
TC- 25 R1039 0 TXC2-
TC+ 24 R1040 0 TXC2+
TCLK- 23 R1041 0 TXCC-
THC63LVD103 TCLK+ 22 R1042 0 TXCC+
TD- 21 R1046 0 TXC3-
TD+ 20 R1043 0 TXC3+
$ 0.9 TE- 19
TE+ 18
TVDSGND 17
1 2 3 4 5 6 7 8 9 1 0 11 12 13 14 15 16
+3.3V_LVDS
R1031 0 L1002
MLB-201209-0120P-N2
C1010
10uF C1013 C1016
25V 1000pF 10uF
50V 25V
R1027
DISP_EN
0
OPT
XDR_CLK_OUT_LVDS CH_HD2_RESET
P1000
FI-X30SSL-HF
GND
1
2
3
4 R1033 0 OPT
5 EXT_VBR
R1032 22 OPT
INV_BRI
6
TXC3+
7
TXC3-
8 +3.3V_LVDS
9
TXCC+
10 4.7K
TXCC- OPT R1048
11
12
TXC2+ 13
TXC2- 14 OPT
AI_ON/OFF +3.3V_LVDS
0
15 R1034
TXC1+
16
TXC1- L1005
17
100 R1047
18
C1023 C1024
TXC0+ 0.1uF 0.1uF
19 16V
TXC0-
20
21
SCL_CH2 R1019 22 22
OPT
R1020 22 23
SDA_CH2 +12.0V
OPT Q1000
24
R1051
0 25 SI4925BDY
OPT
26
R1021 22 27
DISP_EN
OPT D1_2 8 1 S1
28
R1052 29 D1_1 7 2 G1
0 C
30 R1050
D2_2 6 3 S2 Q1001 B 1K
31 LCD_LVDS_PANNEL_CTRL
L1004 2SC3875S
GND 32 D2_1 5 4 G2 E
C1025 C1018 C1019
33 0.1uF 0.1uF 33uF
16V 16V 25V
+19.0V
C1233 C1234
OPT 1000pF
R1212
R1210
4.7 4.7 L1204 120-ohm
OPT 15uH L1208
3
C1240 C1248
C1244 R1217
0.1uF 4.7K
0.47uF 0.01uF
L1205 R1222
120-ohm
15uH 3.3 L1209 2
C1246
C1241
+19.0V R1216 1
0.1uF 0.01uF
R1213 4.7K
R1208
4.7 4.7 R1220
OPT 3.3
C1235
SMW250-03
C1230 OPT
1000pF P1200
C1231 OPT
C1236
1000pF
R1209 R1214
4.7 4
4.7 L1206 120-ohm
OPT 15uH
L1210
3
C1242 C1245 R1218
4.7K 0.01uF
0.1uF 0.47uF
C1249 R1223 2
L1207
3.3 120-ohm
15uH L1211
1
C1247
R1219
+19.0V C1243 0.01uF
R1211 R1215 4.7K
4.7 4.7 0.1uF
R1221
OPT
3.3 SMW250-04
P1201
C1232 C1237
OPT 1000pF
120-ohm
L1212
+19.0V Open ??
SPK_L_GND GND
120-ohm
L1213
R1207
3.3
C1228 GND
0.1uF SPK_R_GND
C1229
0.01uF
+3.3V IC1201
AZ1117H-1.8TRE1(EH13A)
L1203
HH-1M3216-501 INPUT ADJ/GND
3 1
2 1.8VDD_DAMP
C1238 C1239
0.1uF 100uF
OUTPUT
16V
C1250 C1251
C1252
0.01uF 0.01uF 100uF
16V