Read LG 42LH70YR (CHASSIS:LP91D) 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.
120OHM
L501
10uH
L502
READY
C504
READY
M_SCL
10uF
16
V
C508
+5V_TUNER
82pF
C507
READY
0.01uF
C501
220
R506
+5V_TUNER
120OHM
L500
READY
MAIN_SIF
4.7K
R502
0.01uF 50V
C503
47
R504
TV_MAIN
M_SDA
220
R507
27pF
C502
47
R505
27pF
C500
100uF
16
V
C509
100uF
16
V
C510
100uF
16
V
C511
TAFT-Z203D
TU500
PAL_TUNER
14
NC_5
13
V-OUT
5
RF_AGC
12
NC_4
11
MOPLL_AS
2
GND_1
19
NC_8
18
NC_7
10
SCL
4
NC_2
1
NC_1
17
NC_6
9
SDA
8
GND_2
3
+B[5V]
16
SIF-OUT
7
NC_3
6
TP[3.3V_OPT]
15
A-OUT
21
SHIELD
20
NC_9
TAFT-H203F
TU500-*1
NTSC_TUNER
14
NC_5
13
V-OUT
5
RF_AGC
12
NC_4
11
MOPLL_AS
2
GND_1
19
NC_8
18
NC_7
10
SCL
4
NC_2
1
NC_1
17
NC_6
9
SDA
8
GND_2
3
+B[5V]
16
SIF-OUT
7
NC_3
6
TP[3.3V_OPT]
15
A-OUT
21
SHIELD
20
NC_9
ISA1530AC1 Q502
E
B
C
CVBS_VIN
DSUB_SCL
COMP2_R
PC_VS
+5V_TUNER
TXD
+5V_MULTI
DSUB_SDA
COMP1_R
PC_AUD_R
COMP2_PB
MUTE_LINE
PC_AUD_L
COMP2_PR
+3.3V_MST
COMP1_Y
COMP2_Y
M_SCL
+5V_MULTI
MNT_VOUT
SIDE_LIN
PC_HS
COMP1_PB
MAIN_SIF
COMP1_PR
SIDE_V
M_SDA
CVBS_LIN
MNT_LOUT
TV_MAIN
PC_R
+5V_TUNER
IR_OUT
CVBS_RIN
MNT_ROUT
S_VIDEO_DET
SIDE_RIN
501951-7019
P401
19
14
9
4
18
13
8
3
17
12
7
2
16
11
6
1
20
15
10
5
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
RXD
COMP2_L
SIDE_C
SIDE_Y
COMP1_L
PC_B
PC_G
+3.3V_MST
1 2
TUNER
MStar
2
0
0
8
.
5
.
2
0
Near the pin
INTERFACE
UNER
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