LG 50PT350 Service Manual page 16

Full SCART
+3.3V
EU
R114
JK100
10K
EU
PSC008-02
AV/SC1_DET
R115
1K
SHIELD
EU
23
D103 30V AV_DET
22
READY
COM_GND
21
D104 SYNC_IN
30V
20
READY
D105 30V SYNC_OUT
19
READY R120
SYNC_GND2
75
18
EU
SYNC_GND1
17
D106 30V RGB_IO
16
READY
D107 30V R_OUT
SC1_R+/COMP1_Pr+>
15
READY
RGB_GND
14
R_GND
SC1_R-/COMP1_Pr-
13
R121
D2B_OUT 10K
12 EU
D108 30V G_OUT
SC1_G+/COMP1_Y+>
11
READY D2B_IN
10
R126
G_GND
SC1_G-/COMP1_Y-
470K
9
EU
30V
D109 ID
8
READY
D110 30V B_OUT
SC1_B+/COMP1_Pb+>
7
READY
D111 30V AUDIO_L_IN
R127
470K
6
READY
B_GND EU
SC1_B-/COMP1_Pb-
5
AUDIO_GND
4
30V AUDIO_L_OUT
D100
3
READY
D101 30V AUDIO_R_IN
1000pF
2
READY 30V AUDIO_R_OUT
D102
1
READY
1000pF
Close to Jack
R103
0
SC1_G+/COMP1_Y+
SC1_G+/COMP1_Y+>
READY
R100 C101
R104
75 27pF
0
50V
SC1_G-/COMP1_Y-
GND
R105
0
SC1_B+/COMP1_Pb+> SC1_B+/COMP1_Pb+
READY
R101 C100
R106
75 27pF
0
50V
GND SC1_B-/COMP1_Pb-
R108
0
SC1_R+/COMP1_Pr+> SC1_R+/COMP1_Pr+
READY
R102
C102
R107
75 27pF
0
50V
GND SC1_R-/COMP1_Pr-
CI SLOT
+5V_CI_ON
EU
C103
22uF
10V
10067972-000LF
EU
R112 100
/CI_CD1
EU
33
AR100
CI_TS_DATA[4]
CI_TS_DATA[5]
CI_TS_DATA[6]
CI_TS_DATA[7]
EU
R118
10K
CI_IORD
CI_IOWR
BUF_FE_TS_SYN
BUF_FE_TS_DATA[0]
BUF_FE_TS_DATA[1]
BUF_FE_TS_DATA[2]
READY
BUF_FE_TS_DATA[3]
R119
0
BUF_FE_TS_DATA[4]
EU
BUF_FE_TS_DATA[5]
R116
BUF_FE_TS_DATA[6] 10K
BUF_FE_TS_DATA[7]
BUF_FE_TS_DATA[0-7]
EU
R110 33
PCM_RST
EU
R111 33
/PCM_WAIT
REG
AR103
33
CI_TS_CLK
EU
CI_TS_VAL
READY
CI_TS_SYNC
R117
0
AR104 33
CI_TS_DATA[0]
EU
CI_TS_DATA[1]
CI_TS_DATA[2]
CI_TS_DATA[3]
R113
100
/CI_CD2
EU
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 © 2011 LG Electronics Inc. All rights reserved.
Only for training and service purposes
E
R136
0
EU B
SC1_SOG_IN C
Q103
C
ISA1530AC1
AV/SC1_CVBS_IN B
EU
R145
R122 C110 C112 Q100
330
75 27pF 220pF E
2SC3052 EU
EU 50V 50V
EU
EU READY
SC1_VOUT
R150
C111 R144
C107 R143
R123 0 220
1000pF
100 EU
470K 100uF EU
50V
16V
EU 1/4W
READY
EU EU R151
390
SC1_FB READY
R130
R124
33
75
EU
EU
SC1_ID
R125
2.7K
EU
AV/SC1_L_IN
C140 R128
R133
1000pF 10K
12K
50V
EU
EU
READY
AV/SC1_R_IN
R131
C141
10K R134
1000pF
EU 12K
50V
EU
READY
DTV_L_OUT
R129 R147
C105 C108
2K C114
0
4700pF EU 10uF
EU
50V
50V 16V
Q101
2SC3052
EU
R146
R132 2K
C106 C109
0 EU
4700pF
EU
50V
50V
DTV_R_OUT
R148
C113
2K
10uF
EU
16V
Q102
2SC3052
EU R149
2K
EU
EU
C104
0.1uF
16V
JK104
EAG41860102
EU
35 AR105 33
EU
PCM_D[3]
36 R142
EU 10K
PCM_D[4]
37 3
PCM_D[5]
38 4
PCM_D[6]
39 5
PCM_D[7]
40 6
R137 33 EU
41 7
/PCM_CE
R138 33 EU
42 8
CI_ADDR[10]
43 9
CI_OE
CI_ADDR[11]
44 10
CI_ADDR[9]
45 11
CI_ADDR[8]
46 12
CI_ADDR[13]
47 13
CI_ADDR[14]
48 14
49 15
CI_WE
EU
R141 100
50 16
/PCM_IRQA
51 17
R135 0
52 18
READY
53 19
BUF_FE_TS_VAL_ERR
54 20
BUF_FE_TS_CLK
CI_ADDR[12]
55 21
CI_ADDR[7]
56 22
CI_ADDR[6]
57 23
CI_ADDR[5]
58 24
CI_ADDR[4]
59 25
CI_ADDR[3]
60 26
CI_ADDR[2]
61 27
CI_ADDR[1]
62 28
CI_ADDR[0]
AR106 33
63 29
EU PCM_D[0]
64 30
PCM_D[1]
65 31
PCM_D[2]
66 32
67 33 CI_ADDR[0-14]
68 34
G2 2 69 G1 1
PCM_D[0-7]
PCM_D[0-7]
+5V
C119
C118
R154 0.1uF
0.1uF
470
16V
16V
EU READY
READY
R156 R173
15K 18K
EU EU
C
ATV_OUT DTV/MNT_VOUT
B
C121
C117
E Q104 100uF
100uF
2SC3052 R157 16V R174
16V
EU 10K EU EU 10K
EU
EU
R153
180 P_17V
EU
3K
R1468
EU
R166
R163 12K C
7.5K EU
Q107
EU B
2SC3052
C
EU
Q105 R167
B E
2SC3052 12K
SC_RE2
EU EU
R164 C
1K
E
EU B
Q106
SC_RE1
2SC3052
R165
EU
1K
E
EU
IC100
P_17V
AS324MTR-E1
OUT1 OUT4
1 14
C115 R159 R171
27pF
15K 33K
50V IN1- IN4- EU
EU
2 13
EU
EU
R155
SCART1_Lout IN1+ IN4+ SCART2_Lout
6.8K
3 12
EU
R162 R168
5.6K 5.6K
VCC GND
EU EU
4 11
SCART1_Rout SCART2_Rout
IN2+ IN3+
5 10
R161 R169
5.6K
5.6K
EU IN2- IN3- EU
6 9
C116
R160
27pF R158 R170 R172
6.8K
50V 15K 10K 33K
EU EU OUT2 OUT3 EU
EU EU
7 8
EU
SCART1_MUTE
EU
AR108 33
CI_ADDR[12] PCM_A[12]
CI_ADDR[13] PCM_A[13]
CI_ADDR[14] PCM_A[14]
/PCM_REG
REG
EU
AR109 33
CI_ADDR[8] PCM_A[8]
CI_ADDR[9] PCM_A[9]
CI_ADDR[10] PCM_A[10]
CI_ADDR[11] PCM_A[11]
EU
AR107 33
CI_OE /PCM_OE
CI_WE /PCM_WE
CI_IORD /PCM_IORD
CI_IOWR /PCM_IOWR
BUF_FE_TS_DATA[0-7]
AR101 EU
33
BUF_FE_TS_DATA[0]
BUF_FE_TS_DATA[1] FE_TS_DATA[1]
BUF_FE_TS_DATA[2] FE_TS_DATA[2]
BUF_FE_TS_DATA[3] FE_TS_DATA[3]
AR102
33 EU
BUF_FE_TS_DATA[4] FE_TS_DATA[4]
BUF_FE_TS_DATA[5] FE_TS_DATA[5]
BUF_FE_TS_DATA[6] FE_TS_DATA[6]
BUF_FE_TS_DATA[7] FE_TS_DATA[7]
FE_TS_DATA[0-7]
+5V
+3.3V_CI
+3.3V_CI
IC102
EU EU
KIC7SZ32FU
R198 R1103
10K 10K
EU
IN_B 1 5 VCC
EU
/CI_CD2 R1120
10K
IN_A 2
/CI_CD1
EU
GND 3 4 OUT_Y
EU
R1119 R1121
33 33
CI DETECT
R176
SC2/COMP1_DET
470 E
EU
B
C
Q109
C
ISA1530AC1
B SC2_CVBS_IN
EU
C
R183 Q112 C132 C134
Q108 330 2SC3052 220pF 27pF
B E
2SC3052 EU
EU 50V 50V
EU
READY EU
E
SC2_VOUT
R179
R187 C131
R177
240 0 R188 C133
1000pF
180 EU
100 100uF
EU 50V
EU 16V
EU READY
EU
R178
390
READY
REC_8
SC2_ID
D112 SC2/COMP1_L_IN
ENKMC2838-T112 R194
EU 10K
R189 1000pF
12K
SC2/COMP1_R_IN
R193
R190 10K
12K
MNT_L_OUT
C122
R184 C129 R192
C124
27pF 0
2K 4700pF
10uF
50V
EU 50V EU
EU 16V
EU
Q111
R175
10K 2SC3052
R186
EU EU
2K
C130 R191
EU
4700pF 0
50V EU
C123
27pF
50V
MNT_R_OUT
EU
R185
C125
2K
10uF
EU
16V
EU
Q110
2SC3052
R182
EU
2K
EU
+3.3V_CI
IC101 EU
C120
TC74LCX244FT
0.1uF
16V
1OE 1 20 VCC
CI_DET EU
1A1 2OE
PCM_A[0] 2 19
CI_ADDR[7] 2Y4 3 18 1Y1 CI_ADDR[0]
1A2 2A4
PCM_A[1] 4 17 PCM_A[7]
2Y3 1Y2
CI_ADDR[6] 5 16 CI_ADDR[1]
1A3 2A3
PCM_A[2] 6 15 PCM_A[6]
2Y2 1Y3
CI_ADDR[5] 7 14 CI_ADDR[2]
1A4 2A2
PCM_A[3] 8 13 PCM_A[5]
2Y1 1Y4
CI_ADDR[4] 9 12 CI_ADDR[3]
GND 2A1
10 11 PCM_A[4]
AR110
33 EU
FE_TS_SYN BUF_FE_TS_SYN
FE_TS_VAL_ERR BUF_FE_TS_VAL_ERR
FE_TS_CLK BUF_FE_TS_CLK
+5V
EU
EU
L101
Q114
120-ohm
RSR025P03
CI Part
S
D
EU
G C139
0.1uF
EU 16V
R1114
R1105 10K
10K
READY
EU
R1115
2K
C
EU
EU
CI_DET EU
B Q113
PCM_5V_CTL
2SC3052
R1104 R1106
0 10K EU
/PCM_CD E
R1108
10K
CI POWER ENABLE CONTROL
Half SCART / COMP1 Option
+3.3V
EU
R1112
JK101
10K
PSC008-02
R1107
1K
SHIELD
23
AV_DET D113
30V
22
R195 READY
R1118
75 COM_GND
0
EU
EU 21
SYNC_IN D114
30V
20
READY
SYNC_OUT D115
30V
19
R1102
READY
R196 SYNC_GND2
75
470K EU
18
EU SYNC_GND1
R1117
17
0
RGB_IO
NON_EU
16
R_OUT D116
30V
15
READY
RGB_GND
14
R_GND
R1101
R197 13
10K
2.7K R1116 D2B_OUT
EU
0
EU 12
EU
G_OUT D117 30V
11
D2B_IN READY
10
C135
G_GND
R199
470K 9
50V
ID D118 30V
READY
8
READY
B_OUT D119
30V
7
READY
AUDIO_L_IN D120
30V
C136
6
1000pF READY
R1100
B_GND
50V 470K
READY
5
AUDIO_GND
4
AUDIO_L_OUT
D122 30V
3
C137 READY
AUDIO_R_IN D123 30V
1000pF
50V 2
AUDIO_R_OUT READY
D124 30V
1
READY
C138
1000pF
50V
JK105
PPJ-230-01
[RD]MONO
13 NON_EU
[RD]R_IN
4
[WH]L_IN
5
R1111 0 [RD]R
6
SC1_R+/COMP1_Pr+>
NON_EU
[BL]B
R1109 0 7
SC1_B+/COMP1_Pb+>
D121
NON_EU
[GN]C_DET
8
READY
R1110 0 [GN]G
9
SC1_G+/COMP1_Y+>
NON_EU
[GN]GND
10
11
FIX-TER
+5V_CI_ON
R1122
10K
READY
3.3V_CI
+3.3V +3.3V_CI
EU
L100
120-ohm
CI Part
EU EU
C126 C128
0.1uF 0.1uF
16V
16V
GP2R_S7R
2010-08-31
SCART/COMP1
1
CI Slot
LGE Internal Use Only
30V