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LG DP9821P Service Manual page 15

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LCD CIRCUIT DIAGRAMS
C?
nc(104)
L?
VDD33
Y1 27MHZ
2
1
nc(1.6)
C61
R24 1M
C62
R29
1(22)PF
22PF
4.7K
R30
RESET_T
33
+ C68
4.7uF/10V
5VD
C80
0.1uF
C81
47uF/10V
R46
10K
R48
C92
10K
VCOMO
10uF/16V
R50
20K
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U2
S_Y
6
AC0/ACB0
5
AC1/ACB1
C55
4
AC2/ACB2
0.1uF
14
CVBS0/AY0
S_C
13
CVBS1/AY1
12
CVBS2/AY2
C54
22
CVBS3/ACR0
0.1uF
AV
21
CVBS4/ACR1
20
CVBS5/ACR2
CBMID
3
CBMID
CGMID
11
CGMID
19
CRMID
SDA
R20
2
1
33
29
IICA3/SDA
SCL
2
1
30
SCANB/SCL
R21
33
R65
2
1
330
92
XTALI
R66
2
1
0
93
XTALO
TP1
36
XCLK2MC
R25
2
33
1
28
RSTB
31
CPUINT/SCANST
100
VREF
73
VREFIN
74
VREFOUT
C64
99
FIB1
+
34
PWM
0.1uF
C67
C65
0.1uF
47uF/16V
R41
22K
U3
NJM3414AM
C84
3
VR1
VR50K
-15V
10uF/16V
R44
1K
R45
R47
8.2K
C91
VGOFF
10K
VCOM
1
2
10u/16V
VR2
VR50K
R49
5.6K
-10V
-15V
L14
0805
2.7uH
L17
10uH
3VD3
C98
0.1uF
1
EO
2
IN
3
R52
SHDN
4
150K
GND
R54
C104
C103
18P
4.7K
470P
AVDD33
VDD33
VDD22
TERAWINS T100
LP/OEH
POL/VCOM/HSO
STH1/HSO
STH2/DE
CPH1/LLCK1
CPH2/LLCK2
CPH3/LLCK3
D2
+15V
16V
C82
4.7uF/25V
R42
10K
D4
C85
1uF
2
C87
3
C89
1uF
1
0.1uF
BAT54S
D6
2
C93
3
1
0.1uF
C95
0.1uF
BAT54S
D8
L15
5.4uH
2
1
C99
1N5819
47uF/10V
U5
C102
8
SS
7
FREQ
6
27nF
VDD
5
SW
3VD3
AAT1102
3-6
VDD22
L7
FB
+
C44
C45
0.1uF
0.1uF
C46
100uF/6.3V
81
VDT0
82
VDT1
83
VDT2
84
VDT3
85
VDT4
86
VDT5
87
33
VDT6
88
1RP1
VDT7
90
1
8
L/R
VCLK
2
7
U/D
38
3
6
RL
39
4
5
STV2
UD
40
STV1
41
STV2
42
1
8
GOE
43
2
7
GCLK
44
3
6
45
4
5
49
50
1RP2 33
1RP3
52
1
53
FB1 300
2
54
3
71
4
RSET
72
FB2 nc
COMP
62
IOB
1C2
1C1
IOB
65
IOG
22P
22P
IOG
68
IOR
IOR
1C3
FB3 nc
22P
1
2
3
4
1RP4 33
D3
-15V
15V
C83
4.7uF/25V
R43
33
D5
1
C86
1uF
C88
3
2
C90
1uF
0.1uF
BAT54S
D7
1
C94
3
2
0.1uF
BAT54S
U4
78L05
7VD5
1
2
VIN
VOUT
C96
0.1u
C100
47uF/16V
R51
47uF/10V
51k
R53
10k
OEV
CKV
OEH
VCOMO
8
STH1
7
STH2
6
CPH1
5
CPH2
33
8
CPH3
RSET
7
COMP
6
5
5VD
+ C97
C101
0.1uF

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