LG EzSign 42LD452B, Service Manual

Page: 25 / 50

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.
0 R845 AT24C02BN-10SU-1.8
IC801
HDMI_1
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
0 R842
5V_HDMI_1
2SC3052
Q802
E
B
C
0
R817
D1-_HDMI4
DDC_SCL_4
D2+_HDMI1
5V_HDMI_1
2SC3052
Q803
E
B
C
100 R841
DDC_SCL_1
1K
R897
J P 8 0 5
0 R810
100
R824
0 R807
DDC_SCL_1
HPD4
0
R848
DDC_SDA_4
0 R844
5V_DET_HDMI_1
D0-_HDMI4
J P 8 1 2
1K
R896
HPD1
4.7K
R888
0
R847
D811
D2-_HDMI1
D0+_HDMI1
+5V_Normal
DDC_SDA_4
22 R875
0 . 1 u F
C809
0
R843
1.8K
R837
D2-_HDMI4
5V_HDMI_4
EAG59023302
JK802
HDMI_1
14
13
5
D1_GND
20
SHIELD
12
11
2
D2_GND
19
18
10
CK+
4
D1+
1
D2+
17
9
D0-
8
D0_GND
3
D2-
16
7
D0+
6
D1-
15
J P 8 0 3
0
R811
HDMI_CEC
D1+_HDMI4
D802
0 R808
J P 8 0 6
D1+_HDMI1
5V_HDMI_4
10K
R862
CK-_HDMI4
D0+_HDMI4
EDID_WP
22 R876
J P 8 0 9
3.3K
R802
0 R849
ENKMC2838-T112
D821
A1
C
A2
CK+_HDMI4
+5V_Normal
10K
R871
AT24C02BN-10SU-1.8
IC804
HDMI_SIDE
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
0
R846
CK-_HDMI1
0 . 1 u F
16V
C803
DDC_SCL_4
0 . 1 u F
16V
C802
J P 8 0 4
EDID_WP
D0-_HDMI1
DDC_SDA_1
3.3K R835
0 R809
10K
R830
D2+_HDMI4
HDMI_CEC
ENKMC2838-T112
D824
A1
C
A2
22
R826
D1-_HDMI1
0 . 1 u F
C806
0
R813
1.8K
R804
DDC_SDA_1
4.7K
R884
CK+_HDMI1
0
R850
5V_DET_HDMI_4
10K R874
AVRL161A1R1NT
D826 OPT
GND
HDMI_CEC
CEC_REMOTE_NEC
0 . 1 u F
16V
C810
GND
10K
R893
D825
0
OPT
R883
22
R825
22 R839
22 R840
22 R881
22 R882
4.7K
R887
4.7K
R891
EAG42463001
JK803
HDMI_SIDE
14
13
5
D1_GND
20
JACK_GND
12
11
2
D2_GND
19
18
10
CK+
4
D1+
1
D2+
17
9
D0-
8
D0_GND
3
D2-
16
7
D0+
6
D1-
15
BSS83
Q805
S B D
G
68K
R892
+3.5V_ST
68K
R853
CEC_ON/OFF
GND
68K
R854
68K
OPT
R857
0
OPT
R855
0 . 1 u F
16V
C805
AVRL161A1R1NT
OPT
D803
D804
10K
R856
GND
BSS83
Q806
S B D
G
+3.3V_Normal
0
R858
CEC_REMOTE_S7
SCART1_Rout
TP3805
TP3806
DTV/MNT_VOUT
TP3802
SC1_FB
SCART1_MUTE
TP3801
TP3804
TP3803
TP3807
TP3809
SC1_CVBS_IN
SCART1_Lout
TP3808
SC_RE2
SC1_SOG_IN
SC_RE1
SC1_ID
5.6V
D3806
470K
R6002
10pF
50V
OPT
C3808
MLB-201209-0120P-N2
L3305
+3.3V_Normal
COMP_Y-
AV_CVBS_DET
470K
R3816
COMP_DET
AV_CVBS_IN
0
R3806
10pF
50V
OPT C3802
10pF
50V
OPT
C3804
5.6V
D3807
COMP_Pr-
1000pF
50V
C3801
5.6V
R3813
AV_R_IN
1000pF
50V
C3805
100pF
50V
OPT
C3803
0
R3807
5.6V
D3305
1000pF
50V
C3807
10pF
50V
OPT
C3806
30V
D3805
0
R3810
10K
R3826
EXT_OUT_R
0 0 3 : S 9
75
R3814
12K
R3817
1K
R3805
12K
R3815
+3.3V_Normal
75
R3820
5.6V
D3802
0
R3808
470K
R6004
1K
R3827
5.6V
OPT
D3307
EXT_OUT_L
0 0 3 : S 8
30V
D3804
30V
D3803
75
R3818
COMP_L_IN
1000pF
50V
C5032
10K
R6003
10K
R3804
10K
R3825
5.6V
D3306
COMP_R_IN
75
R3812
5.6V
OPT
D3308
30V
D3808
12K
R3829
470K
R3819
P P J 2 3 9 - 0 2
JK3802
5 J
[GN2]O-SPRING
6 J
[GN2]E-LUG
4 J
[GN2]CONTACT
7K
[BL2]E-LUG-S
5K
[BL2]O-SPRING
7L
[RD2]E-LUG-S
5L
[RD2]O-SPRING_1
5M
[WH2]O-SPRING
4N
[RD2]CONTACT
5N
[RD2]O-SPRING_2
6N
[RD2]E-LUG
6D
[YL1]E-LUG
5D
[YL1]O-SPRING
4D
[YL1]CONTACT
7E
[WH1]E-LUG-S
5E
[WH1]O-SPRING_1
7F
[RD1]E-LUG-S
5F
[RD1]O-SPRING_1
4F
[RD1]CONTACT_1
5G
[WH1]O-SPRING_2
4H
[RD1]CONTACT_2
5H
[RD1]O-SPRING_2
6H
[RD1]E-LUG
10K
R3811
MLB-201209-0120P-N2
L3304
AV_L_IN
10K
R3822
12K
R3828
COMP_Pb-
HDMI
GP2_Saturn7M
V e r . 1 . 2
SIDE_HDMI
$0.055
HDMI_1
HDMI EEPROM
$0.253
$0.055
$0.253
For CEC
8
SCART OPTION BLOCK
COMPONET & AV & SPK OUT
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