42PJ250R-TA, 42PJ251R-TB (CHASSIS:PP01A) - LG TV Service Manual (repair manual). Page 17

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USB DOWN STREAM
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.
INPUT
HPD_MST_2
+5V_HDMI_1
TMDS1_RXC-
TMDS1_RX0+
R110
100
DDC_SCL2
R109
100
+5V_HDMI_1
TMDS1_RX2+
R118
100
TMDS1_RXC+
CEC
IC103
MAX3232CDR
3
C1-
2
V+
4
C2+
1
C1+
6
V-
5
C2-
7
DOUT2
8
RIN2
9
ROUT2
10
DIN2
11
DIN1
12
ROUT1
13
RIN1
14
DOUT1
15
GND
16
VCC
D101
KDS184S
A
1
C
A
2
TMDS1_RX0-
DDC_SDA2
+5V_HDMI_3
Q101
2SC3875S
RT1C3904-T112
E
B
C
R162
10K
SIDE_HDMI
DDC_SCL1
+5V_HDMI_2
+5V_ST
TMDS2_RX2+
DDC_SCL2
+5V_HDMI_2
TMDS1_RX2-
R160
100
SIDE_HDMI
D102
KDS184S
SIDE_HDMI
A
1
C
A
2
R161
100
SIDE_HDMI
TMDS2_RX1+
CEC
TMDS2_RX1-
+3.3V_MPLL
+5V_ST
DDC_SDA1
DDC_SCL3
TMDS2_RXC+
DDC_SCL1
+5V_ST
DDC_SDA1
D100
KDS184S
A
1
C
A
2
DDC_SDA2
DDC_SDA3
R103
10K
R102
1K
R122
4.7K
R114
100
R115
100
TMDS2_RX2-
RXD
R116
10K
R101
1K
BOT_HDMI
R129
4.7K
TMDS1_RX1-
R104
10K
BOT_HDMI
HPD_MST_1
TMDS2_RX0-
TMDS2_RXC-
TMDS1_RX1+
R119
10K
R163
10K
SIDE_HDMI
+5V_ST
R117
100
Q100
2SC3875S
BOT_HDMI
RT1C3904-T112
E
B
C
TXD
TMDS2_RX0+
DSUB_SCL
ROM_SDA
R120
4.7K
C103
68pF
C104
68pF
R111
75
DSUB_SDA
PC_HS
ROM_SCL
PC_B
PC_VS
R128
68
R113
75
PC_G
R112
75
R127
68
R132
10K
R121
4.7K
PC_R
ISP_RX
C105
0.1uF
C106
0.1uF
C107
0.1uF
C108
0.1uF
JK111
SPG09-DB-009
1
2
3
4
5
6
7
8
9
10
R159
12K
SIDE_VIN
SIDE_LIN
R145
75
SIDE_RIN
R147
220K
R152
10K
R146
220K
R153
10K
R158
12K
JK110
SPG09-DB-010
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
IR_OUT
C110
0.01uF
25V
SIDE_HDMI
C101
0.01uF
25V
C109
0.01uF
25V
C100
0.01uF
25V
C102
0.01uF
25V
R124
220K
PC_AUD_R
R125
10K
PC_AUD_L
R131
12K
R123
220K
R130
12K
R126
10K
R539
0
HOTEL
R535
1K
NONE_HOTEL
R529
470K
MUTE_LINE
MNT_LOUT
C114
10uF
16V
NONE_HOTEL
SPK_R-_HOTEL
C111
10uF
16V
SPK_R+_HOTEL
AUDIO_R
MNT_ROUT
R540
0
HOTEL
MUTE_LINE
R528
470K
R532
0
HOTEL
R509
220K
EU
SC2_RIN
R521
12K
EU
R511
10K
EU
R522
12K
EU
R512
10K
EU
SC2_LIN
R510
220K
EU
SC2_ID
R502
75
EU
SC2_VIN
R513
10K
EU
R523
3K
EU
Q502
2SC3875S(ALY)
E
B
C
Q504
2SC3875S(ALY)
E
B
C
R533
1K
NONE_HOTEL
C112
10uF
16V
EU
R514
12K
R505
10K
MUTE_LINE
R508
75
TV_ROUT
SC1_VIN
SC1_RIN
TV_LOUT
R506
10K
MUTE_LINE
Q505
2SC3875S(ALY)
EU
E
B
C
R520
3K
EU
R503
220K
R531
470K
EU
SC1_LIN
R534
1K
EU
R515
12K
R530
470K
EU
Q503
2SC3875S(ALY)
EU
E
B
C
R537
1K
EU
SC1_ID
R504
220K
C113
10uF
16V
EU
C115
220uF 16V
EU
TV_VOUT
Q501
2SC3875S(ALY)
EU
E
B
C
SC1_FB
R536
22
EU
Q500
2SC3875S(ALY)
EU
E
B
C
R526
3K
EU
R541
3K
EU
R525
3K
EU
R519
75
EU
R524
1K
EU
R527
75
EU
SC1_R
R518
75
EU
SC1_G
R517
75
EU
SC1_B
R516
75
EU
R507
20K
EU
R500
0
NONE_EU
R501
0
NONE_EU
+3.3V_MST
C116
100uF
16V
EU
MNT_VOUT
R542
75
EU
JK113
PPJ231-01
NONE_EU
8
6
7
5
4
R133
100
R134
100
R135
10K
R136
10K
JK100
YKF45-7058V
BOT_HDMI
14
13
5
20
12
11
2
19
18
10
4
1
17
9
8
3
16
7
6
15
JK101
YKF45-7054V
14
13
5
20
12
11
2
19
18
10
4
1
17
9
8
3
16
7
6
15
JK106
PPJ235-01
4A
5A
3A
4B
3C
4C
5C
USB_DN
USB_DP
+5V_MULTI
JK112
KJA-UB-4-0004
1
2
3
4
5
TMDS3_RX2-
DDC_SDA3
R100
1K
SIDE_HDMI
HPD_MST_3
Q102
2SC3875S
SIDE_HDMI
RT1C3904-T112
E
B
C
TMDS3_RX1-
TMDS3_RX0+
TMDS3_RXC-
CEC
JK102
KJA-ET-0-0032 
SIDE_HDMI
14
NC
13
CEC
5
DATA1_SHIELD
20
JACK_GND
12
CLK-
11
CLK_SHIELD
2
DATA2_SHIELD
19
HPD
18
+5V_POWER
10
CLK+
4
DATA1+
1
DATA2+
17
DDC/CEC_GND
9
DATA0-
8
DATA0_SHIELD
3
DATA2-
16
SDA
7
DATA0+
6
DATA1-
15
SCL
TMDS3_RX0-
R105
10K
SIDE_HDMI
DDC_SCL3
TMDS3_RX2+
TMDS3_RXC+
+5V_HDMI_3
TMDS3_RX1+
JK103
PEJ027-01
6B
7B
5
4
7A
6A
3
ROM_SDA
ROM_SCL
DSUB_SDA
DSUB_SCL
R142
100
NONE_RGB
R143
100
NONE_RGB
R144
100
NONE_RGB
R150
100
NONE_RGB
R180
5.1
R181
5.1
COMP1_PR
R148
10K
NONE_EU
JK105
PPJ234-01
EU
5A
6A
4A
7B
5B
7C
5C
5D
4E
5E
6E
R174
10K
R179
12K
COMP2_R
R178
12K
R154
12K
NONE_EU
COMP1_Y
R165
75
COMP1_PB
R137
75
NONE_EU
R169
220K
R138
75
NONE_EU
R166
75
R175
10K
COMP2_PR
R139
75
NONE_EU
COMP2_PB
R140
220K
NONE_EU
R167
75
COMP1_R
R155
12K
NONE_EU
R168
220K
R149
10K
NONE_EU
R141
220K
NONE_EU
COMP2_Y
JK107
PPJ239-01
NONE_EU
5J
6J
4J
7K
5K
7L
5L
5M
4N
[RD2]CONTACT
5N
[RD2]O-SPRING_2
6N
[RD2]E-LUG
6D
[GN1]E-LUG
5D
[GN1]O-SPRING
4D
[GN1]CONTACT
7E
[BL1]E-LUG-S
5E
[BL1]O-SPRING
7F
[RD1]E-LUG-S
5F
[RD1]O-SPRING_1
4F
[RD1]CONTACT_1
5G
[WH1]O-SPRING
4H
[RD1]CONTACT_2
5H
[RD1]O-SPRING_2
6H
[RD1]E-LUG
COMP2_L
COMP1_L
IC101
CAT24C02WI-GT3
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
IC102
CAT24C02WI-GT3
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
IC100
CAT24C02WI-GT3
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
JK116
PPJ241-01
NONE_EU
3
[WH]L_OUT
5
[WH]GND
4
[RD]R_OUT
CEC
D103
30V
MMBD301LT1G
D104
10V
BSS83
Q103
S
B
D
G
R106
56K
CEC_C
+3.3V_MPLL
EYE_SDA
EYE_SCL
R543
100
R544
100
JK114
PSC008-02
EU
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
23
SHIELD
22
AV_DET
JK115
PSC008-02
EU
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
23
SHIELD
22
AV_DET
R538
5.6K
EU
1     4
INPUT
[ Slim Jack : 6630TGA004Q ]
[ Slim Jack : 6630G00001E ]
[ Slim Jack : EAG59023302 ]
[ Slim Jack : EAG59023301_SCREW ]
[ Slim Jack : EAG42463001]
[ EAG41945401 ]
EAX61365502(BPR)
H6 Revolution Circuit Diagram
[ SIDE HDMI ]
H6 R
2009/11/05
HDMI CEC
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