LG 42LX6500 Service Manual page 31

FIX-TER
[GN]GND
11
10
[GN]G
9
[GN]C_DET
8
[BL]B
7
[RD]R
6
[WH]L_IN
5
[RD]R_IN
4
[RD]MONO
13
PPJ-230-01
JK4101
CN
PSC008-01
[SCART2 PIN 8]
+12V
EU_SCART [OPT]
R4156
10K C
R4157 R4160
EU
0
EU 0
B
R4152
EU
4.7K
R4159
EU E
EU 12K
C
EU
EU
B Q4110
SC_RE1
2SC3052
R4154
1K E
C
EU
EU
B Q4108
SC_RE2
2SC3052
R4155
1K E
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.
All manuals and user guides at all-guides.com
D4107
5.6V
CN
D4101
30V
EU
OPT
R4164
12
AV_DET
22
COM_GND
21
SYNC_IN
20
EU
SYNC_OUT
19
R4112
SYNC_GND2 75
D4106
18
30V
D4102
SYNC_GND1
17 5.6V OPT
OPT
RGB_IO
16
R_OUT
15
RGB_GND D4103 R4111
EU
14
5.6V EU
75
R4104
270nH CN
R_GND CN 1%
13 75 R4108-*1
R4168 0 1% CM2012FR27KT
D2B_OUT EU
12
G_OUT
11
EU CN CN
CN D4104 R4108
D2B_IN R4101 C4147 0 EU C4148
10 D4113 5.1V
75 27pF 27pF
5.1V
CN
G_GND 1%
9 50V 50V
ID
8
B_OUT
7
EU
AUDIO_L_IN
D4110
6 R4102
5.6V
75
B_GND
CN 1%
5
AUDIO_GND
4
C4105
AUDIO_L_OUT
3
AUDIO_R_IN 1uF
2
R4103
D4109
AUDIO_R_OUT 470K
1
5.6V
CN
C4104
JK4100
1uF
EU
D4108
R4100
5.6V
470K
CN
L4100
R4105
BLM18PG121SN1D
0
EU
1/16W
EU EU
5%
C4107
C4100
D4105 EU 1000pF 4700pF
5.6V 50V 50V
EU
OPT EU
Q4111
L4101
2SC3052
R4107
BLM18PG121SN1D
0
1/16W
EU
5%
C4101 C4108
EU
1000pF EU 4700pF
D4100
50V 50V
5.6V
OPT
For Frequency Response
REC_8
EARPHONE BLOCK
EARPHONE AMP - Spec out
+3.3V_NORMAL
R4126
10K
SCART1_DET
R4129
1K
C4116
0.1uF
16V
ISA1530AC1
EU
SC1_CVBS_IN
R4123
EU C4113 C4115
0
EU 220pF
R4115 47pF
50V
62 50V
OPT
EU
C4114
100uF
16V
EU
SC1_FB
R4122
22
SC1_R
EU
SC1_G EU
30V
REC_8
R4128
D4112
0
SC1_ID
OPT
EU
EU
D4111
R4127
SC1_B
30V
15K R4130
3.9K
R4116
0
SC1_L_IN
C4112
100pF
50V
R4113
0
SC1_R_IN 002:C6
C4111
100pF
50V
041:F4;041:G2
DTV/MNT_L_OUT
DTV/MNT_R_OUT 041:F3;041:G2
+5V_NORMAL
+12V
EU
EU
R4163
C4134
0.1uF 10K
EU 16V
L4105
EU
EU EU
EU E C4119
C4118
R4135
0.1uF
470 0.1uF
Q4104
16V
16V
SELECT
B
EU
EU
C
Q4105
EU R4136
2SC3052 47K
C EU
R4133
C4117
390 B
47uF
16V
E
EU EU
R4132 R4138
0
390
EU
Rf EU
R4137
Rg
R4134 15K
180
Gain=1+Rf/Rg
R4131
0
OPT
DTV/MNT_L_OUT
OPT OPT
+12V
R4141 R4142
68K 68K
C4122
OPT
33pF
SCART1_Lout_N
SCART1_Lout_P
C4120
EU
0.1uF
16V SCART1_Rout_P
SCART1_Rout_N
+12V
OPT OPT
R4139 R4140
68K 68K
DTV/MNT_R_OUT
C4121
OPT
33pF
DTV/MNT_L_OUT
Q4106
2SC3052
DTV/MNT_R_OUT
EU
Q4107
2SC3052
ETC SUB BOARD I/F
DTV_ATV_SELECT
IC4101
NLASB3157DFT2G
B1
6 1
ATV_OUT
EU
VCC GND
5 2
A B0
4 3
DTV/MNT_V_OUT
Selece = High ==> A = B1
Selece = Low ==> A = B0
Audio Out Amp
EU_SCART [OPT]
EU
IC4100
R4146
EU 1K LM324D
EU
EU
C4126 R4149
C4123
33K 1 14
10uF 6800pF 1 14
16V 50V
C4127
33pF
2 13
2 13
EU R4176
EU 10K EU
3 12
5.6K R4148
3 12
5.6K
R4147
4 11
EU
4 11
EU
5.6K 5 10
R4143
5 10
EU
EU
R4150
6 9
5.6K R4144 33K
6 9
C4128 33pF 7 8
7 8
R4177
R4145
10K EU
EU 1K
EU
C4124
C4125
10uF
EU
6800pF
16V
50V
EU
EU
R4151
2K
1/16W
RT1P141C-T112
Q4109
EU
SCART1_MUTE
3 1
C4130
EU
EU
R4153
2 0.1uF
2K
1/16W
EUROBBTV 2009.06.18
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