Read LG 26LG30R (CHASSIS:LP81A) Service Manual online
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.
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.
TMDS3_RX2-
TMDS3_RXC-
HPD_S/W_2
TMDS2_RXC-
1K
R319
+5V_HDMI_2
HDMI_SEL1
TMDS3_RXC-
HDMI_C-
HDMI_SCL
HDMI_0-
10K
R351
HPD_MST_2
TMDS3_RX0+
TMDS2_RX2-
HDMI_C+
TMDS1_RX0+
+5V_HDMI_3
4.7K
R362
CEC_C
DDC_SCL1
CEC
TMDS1_RX1-
HDMI1_5V_DET
TMDS2_RX1+
HDMI3_5V_DET
TMDS2_RXC-
TMDS2_RXC+
0.01uF
C310
1K
R344
SIDE_HDMI
10K
R300
0.01uF
C315
HDMI_0+
+3.3V_MULTI_MST
1K
R310
+3.3V
CEC
DDC_SDA2
0.01uF
C314
TMDS3_RX2+
TMDS1_RXC-
HDMI_1-
0.01uF
C316
10K
R328
HPD_S/W_1
TMDS2_RX0+
TMDS2_RX0+
0.01uF
C308
TMDS3_RX0-
HDMI_2-
HPD_S/W_3
TMDS3_RX0-
TMDS3_RX1+
HDMI2_5V_DET
10K
R324
0
READY
R369
TMDS3_RXC+
DDC_SCL3
TMDS1_RXC+
+3.3V_MULTI_MST
+5V_HDMI_2
HPD_S/W_2
HPD_MST_1
CEC
BSS83
Q306
S
B
D
G
10K
R335
SIDE_HDMI
TMDS1_RX1+
TMDS3_RX1-
TMDS2_RXC+
0
R370
READY
TMDS1_RX2+
4.7K
R375
READY
0
R373
TMDS2_RX1+
TMDS1_RX0-
+3.3V_HDMI_SW
+5V_ST
4.7K
R361
0
R356
TMDS2_RX2-
+5V_HDMI_1
TMDS3_RX2-
TMDS3_RX2+
0
R358
HDMI_1+
0.01uF
50V
READY
C307
TMDS2_RX0-
TMDS2_RX0-
TMDS1_RX1-
4.7K
R374
KDS184S
KDS184
D300
A2
C
A1
10K
R329
TMDS2_RX1-
TMDS3_RX0+
0.01uF
C311
0.01uF
C312
TMDS1_RX2-
+5V_HDMI_3
TMDS3_RX1-
TMDS2_RX2+
HDMI_2+
HDMI_SEL2
TMDS1_RX2+
+5V_HDMI_1
10K
R352
TMDS3_RX1+
0.01uF
C309
0
R357
TMDS1_RXC-
0
R355
+5V_ST
TMDS3_RXC+
+5V_HDMI_3
+5V_ST
10K
R301
TMDS1_RX2-
+3.3V_HDMI_SW
+5V_HDMI_1
TMDS1_RX0-
TMDS2_RX1-
TMDS1_RX1+
HPD_S/W_1
0
R368
READY
10K
R325
0
R347
CEC
HDMI_SDA
DDC_SCL2
+5V_HDMI_2
HPD_S/W_3
TMDS1_RX0+
TMDS2_RX2+
0
R345
KDS184S
KDS184
D303
A2
C
A1
DDC_SDA1
0
R346
TMDS1_RXC+
CDS3C30GTH
30V
D302
READY
HPD_MST_3
DDC_SDA3
KDS184S
KDS184
D301
A2
C
A1
0
R350
47K
R330
47K
R331
47K
R326
47K
R327
47K
R354
47K
R353
0
READY
R365
0
READY
R376
MMBD301LT1G
30V
D304
A
C
DDC_SDA2
DDC_SCL2
DDC_SDA1
DDC_SCL1
DDC_SDA3
DDC_SCL3
TMDS351PAG
IC302
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
0
READY
R383
0.01uF
50V
C301
0.01uF
50V
C313
0.01uF
50V
C300
51K
R333
30K
R334
READY
4.7K
1%
R372
JP1115
JP1116
JP1117
JP1118
JP1119
JP1120
2SC3875S
RT1C3904-T112
Q300
E
B
C
2SC3875S
RT1C3904-T112
Q301
E
B
C
2SC3875S
RT1C3904-T112
Q307
SIDE_HDMI
E
B
C
DC1R019NBH
JK303
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+
17DDC/CEC_GND
9 DATA0-
8 DATA0_SHIELD
3 DATA2-
16 SDA
7 DATA0+
6 DATA1-
15 SCL
47K
R371
+3.3V
200
R332
QJ41193-FEE2-7F
JK302
1 DATA2+
2 DATA2_SHIELD
3 DATA2-
4 DATA1+
5 DATA1_SHIELD
6 DATA1-
7 DATA0+
8 DATA0_SHIELD
9
DATA0-
10 CLK+
11 CLK_SHIELD
12
CLK-
13 CEC
14 NC
15
SCL
16 SDA
17 DDC/CEC_GND
18 +5V_POWER
19 HPD
20 JACK_GND
21
.
22
.
QJ41193-FEE2-7F
JK301
1
DATA2+
2 DATA2_SHIELD
3
DATA2-
4 DATA1+
5 DATA1_SHIELD
6
DATA1-
7 DATA0+
8 DATA0_SHIELD
9
DATA0-
10 CLK+
11 CLK_SHIELD
12
CLK-
13
CEC
14
NC
15
SCL
16
SDA
17 DDC/CEC_GND
18 +5V_POWER
19
HPD
20 JACK_GND
21
.
22
.
AT24C02BN-10SU-1.8
IC300
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
AT24C02BN-10SU-1.8
IC301
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
AT24C02BN-10SU-1.8
IC303
SIDE_HDMI
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
+5V_MULTI
KDS184S
KDS184
D305
A2
C
A1
+5V_ST
0
R359
READY
4.7K
R360
READY
+3.3V_MULTI_MST
100
R323
100
R322
100
R320
100
R321
100
R348
100
R349
22
R378
22
R377
22
R382
22
R381
22
R379
22
R380
4.7K
READY
R366
*TI Recommand
- > P u l l u p
HDMI
3 1 1
MSTAR N-EU
2 0 0 7 / 1 2 / 2 0
OPTION
SW_HPD : USE SW HPD (Default)
MST_HPD : USE MST HPD
**MULTI ITEM
1.24C02-SUB:0IMMRAL014D
2.SMD HDMI Jack-SUB:6612B00015B
EAX40043808
MSTAR LP81A
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