Read LG 26LG40 (CHASSIS:LA89D) Service Manual online
USB_DP
51K
R858
100K
R859
10uF
16V
C814
CDS3C05GTA 5.6V
READY
D804
USB_DM
USB_OCD_N
CDS3C05GTA 5.6V
READY
D803
+5V_GENERAL
USB DOWN STREAM
KJA-UB-4-0004
P800
1
2
3
4
5
TMDS2_RX1+
B_TX0+
TXCLK-
TMDS3_RX1+
+3.3V_MULTI
TMDS1_RXC-
0.1uF
C808
1/10W
0
5%
R842
0
R855
TMDS1_RX2-
TMDS2_RXC-
TMDS3_RX0+
TP828
0.01uF
C813
B_TX0-
0
R853
TMDS2_RX2-
TMDS1_RX0-
R_TX2+
HDMI_SEL1
001:M3
0.01uF
C816
+3.3V_MULTI
T M
D S
2 _R
X C
+
+5V_ST
0.01uF
C811
TMDS1_RXC+
0
R849
R849
0
R850
R850
HDMI_SEL0
001:M3
0
R841
0.01uF
C810
0
R857
TMDS2_RX0+
TP827
0.01uF
C812
0
R854
TMDS2_RX2+
3.9K
1%
R840
TMDS2_RX1-
DDC_SCL2
TMDS3_RX1-
G_TX1+
DDC_SCL3
TMDS3_RX2+
D D
C D
A _S
C L
T X
C L
K +
TMDS2_RX0-
G_TX1-
0.01uF
C817
DDC_SDA1
TMDS3_RX0-
TMDS1_RX1+
TMDS1_RX1-
HDMI_SW_EQ
009:B6
TMDS1_RX2+
D D
C _S
D A
2
TMDS3_RXC-
R_TX2-
DDC_SCL1
TMDS3_RX2-
D D
C D
A _S
D A
DDC_SDA3
0.01uF
C809
0
R856
0.01uF
C815
4.7K
R852
4.7K
R851
TMDS351PAG
IC802
1
SDA3
2
SCL3
3
GND_1
4
B31
5
A31
6
VCC_1
7
B32
8
A32
9
GND_2
10
B33
11
A33
12
VCC_2
13
B34
14
A34
15
GND_3
16
VSADJ
17
Y4
18
Z4
19
VCC_3
20
Y3
21
Z3
22
GND_4
23
Y2
24
Z2
25
VCC_4
26
Y1
27
Z1
28
GND_5
29
SCL_SINK
30
SDA_SINK
31
HPD_SINK
32
S1
33
S2
34
EQ
35
HPD1
36
SDA1
37
SCL1
38
B11
39
A11
40
VCC_5
41
B12
42
A12
43
GND_6
44
B13
45
A13
46
VCC_6
47
B14
48
A14
49
VDD
50
HPD2
51
SDA2
52
SCL2
53
B21
54
A21
55
VCC_7
56
B22
57
A22
58
GND_7
59
B23
60
A23
61
VCC_8
62
B24
63
A24
64
HPD3
TMDS3_RXC+
TMDS1_RX0+
DDC_SCL2
TMDS2_RX1-
47K
R8
31
10K
READY
R838
DC1R019WDH
JK801
1
D2+
2
D2_GND
3
D2-
4
D1+
5
D1_GND
6
D1-
7
D0+
8
D0_GND
9
D0-
10
CK+
11
CK_GND
12
CK-
13
CE_REMOTE
14
NC
15
DDC_CLK
16
DCC_DAT
17
GND
18
5V
19
HP_DET
20
GND
21
GND
22
GND
0
R823
22
R832
TMDS2_RXC-
TMDS2_RX0-
POWER_HDMI1
0.1uF
50V
C802
47K
R E
A D
Y
R825
SDA_HDMI2
0.1uF
50V
C801
SCL_HDMI2
8pF
50V
READY
C803
+5V_GENERAL
TMDS2_RX2-
8pF
50V
READY
C804
22
R833
1K
R817
TMDS2_RX1+
SDA_HDMI1
+3.3V_VDDP_ST
DDC_CTL
TMDS2_RXC+
0
R822
POWER_HDMI2
SCL_HDMI1
4.7K
R836
100
R827
DDC_SDA2
TMDS2_RX0+
4.7K
R834
TMDS2_RX2+
HPDCTRL2
47K
R E
A D
Y
R829
100
R839
+3.3V_VDDP_ST
+3.3V_VDDP_ST
TMDS1_RX0+
TMDS1_RX1+
DC1R019WDH
JK800
1
D2+
2
D2_GND
3
D2-
4
D1+
5
D1_GND
6
D1-
7
D0+
8
D0_GND
9
D0-
10
CK+
11
CK_GND
12
CK-
13
CE_REMOTE
14
NC
15
DDC_CLK
16
DCC_DAT
17
GND
18
5V
19
HP_DET
20
GND
21
GND
22
GND
47K
R8
30
POWER_HDMI1
0.1uF
50V
C800
0
R820
TMDS1_RX2-
TMDS1_RX2+
SCL_HDMI1
TMDS1_RXC-
0
R821
+3.3V_VDDP_ST
47K
R E
A D
Y
R828
DDC_SDA1
100
R826
HPDCTRL1
47K
R E
A D
Y
R824
DDC_SCL1
TMDS1_RX0-
TMDS1_RX1-
1K
R816
SDA_HDMI1
TMDS1_RXC+
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.
DDC_CTL
POWER_HDMI2
+5V_GENERAL
4.7K
R846
8pF
50V
READY
C807
SDA_HDMI2
10K
READY
R847
100
R848
22
R844
22
R843
0.1uF
50V
C805
8pF
50V
READY
C806
4.7K
R845
SCL_HDMI2
0
READY
R837
120K
R835
R835
M M
B D
3 01
L T
1 G
D800
BSS83
Q802
S
B
D
D
G
H D
M IC
E C
+3.3V_VDDP_ST
HDMI_CEC
HDMICEC
0
R818
0
R819
0
R811
0
R
804
0
R807
0
R808
0
R
806
0
R805
0
R812
0
R
801
0
R
815
0
R
814
0
R
803
0
R
800
0
R
813
0
R
810
0R
8
0
9
0
R
802
ENKMC2838-T112
D801
A1
C
A2
ENKMC2838-T112
D802
A1
C
A2
2SC3052
Q800
E
B
C
2SC3052
Q801
E
B
C
UBW2012-121F
L800
MBW3216-501TF
L801
CAT24C02WI-GT3
IC800
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
CAT24C02WI-GT3
IC801
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
+5V_EDID
+5V_EDID
+5V_EDID
UBW2012-121F
L802
ENKMC2838-T112
D805
A1
C
A2
0
R8
60
0
R8
61
JP1032
JP1033
JP1035
TP1108
SIGN1286
SIGN1289
USB
8 9
2007.12.26
HDMI&USB
HDMI1
SIDE_HDMI
HDMI2
HDMI2
HDMI1
HDMI1
HDMI2
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