20’’ LCD TV Color Monitor AOC L20W431
50
R102
100k
DIG5
DECDIG
+1.8V_1
R117
2.2
+
C149
10u
+5V
REF
ON_OFF
13
4
5
L101
L
C138
0.1uF
+5V_SW
DIG1
+5V_SW
C140
0.22uF
REF
REF
R128
NC
+3.3Vstb
C159
0.1u
R113
15k
R127
3.3K
DIG1
R101
47k
DIG1
R109
10k
R121 22k
REF
+
C150
47u
+
C143
100u
FB104
600
DIG2
Q103
BC557B
3
2
1
FB103
NC
R114
15K NC
BL_EN
R122
22k
R129
NC
C141
0.22uF
C136
0.1uF
R105
4.7K
+
C151
47u
U101
LM1117MP-1.8
3
2
1
4
VIN
VOUT
GN
D
CASE
Q107
PMBS3904
3
2
1
REF
R115
1k
C137
0.1uF
C155
1u
+3.3Vs_SW: For LOC1-SCALAR&Flash&Panel&Emluator
+12V
+12V_SW
DIG1
+12V_SW
R126
3.3K
R111
150K NC
U103
LM1117MP-3.3
3
2
1
4
VIN
VOUT
GN
D
CASE
R123
22k
C160
0.1u
R106 100k
+12V
+5V
Q114
BSH111 NC
C156
0.1uF
13
1
POWER
AOC (Top Victory) Electronics Co., Ltd.
A3
13
14
Friday , April 28, 2006
Title
Size
Document Number
Rev
Date:
Sheet
of
+3.3Vs_SW
C139
0.1uF
R104
10k
+1.8VS_SW: For LOC1-SCALAR
DIG1
REF
PGND
REF
+3.3Vs_SW
R112
15k
CN103
10PIN 2.5MM
1
2
3
4
5
6
7
8
9
10
TUNERGND
REF
REF
ON_OFF
+
C147
10u
Q106
PMBS3904
3
2
1
R136
6.2K
U102
LM1117MP-3.3
3
2
1
4
VIN
VOUT
GN
D
CASE
REF
PanelVDD_EN
Q109
PMBS3904
3
2
1
+
C144
100u
R110
10k
FB101
B1206/0
+5V_SW
R108
10k
DIG1
R120
2.2
C142
220p
R124 22k
FB102
NC
Q105
BC8478
3
2
1
PANEL_VDD
+8V
R116
1k
C145
0.1uF
REF
+8V: For TDA9178(Picture improve)
D101
BAS16 NC
PGND
R125
22k NC
+
C153
47u
C158
0.068u
R130
22k
+
C152
100u/16V
C133
0.1uF NC
Q108
PMBS3904
3
2
1
GND3
AGND
RESET
Q101
AO4411
1
2
3
4
5
6
7
8
S
S
S
G
D
D
D
D
确认电流规格
+5V_SW
C157
0.1uF
R118
2.2
GND4
Q116
PMBS3904
3
2
1
REF
FB115
B0805/600
+3.3Vstb
+5V
+
C148
10u
13
4
5
L102
L
+1.8V_2
+3.3Vstb
BL_ADJ
REF
+5V
R107 4.7k
C135
0.1uF
REF
+
C154
330u/16V
GND5
U104
AZ1117H-ADJ
3
2
1
VI
VO
AD
J
+12V
R103
10k
DIG1
+3.3Vstb
Q102
BC557B
3
2
1
C163
0.1uF
+5V_SW
GND1
PGND
Q113
BSH111 NC
Q111
AO3401
REF
C134
0.1uF
DIG4
R135
1.2K
R119
2.2
+
C146
100u
+3.3V_IO
Q104
BC8478
3
2
1
Q112
AO4411
1
2
3
4
5
6
7
8
S
S
S
G
D
D
D
D
+1.8VS_SW
+3.3Vs_SW
REF
GND2
DIG3
PANEL Power
Control
Summary of Contents for L20W431
Page 20: ...20 LCD TV Color Monitor AOC L20W431 20 6 Remove the 15 screws to remove the bezel ...
Page 21: ...20 LCD TV Color Monitor AOC L20W431 21 7 Remove the ten screws to remove the main frame ...
Page 22: ...20 LCD TV Color Monitor AOC L20W431 22 ...
Page 29: ...20 LCD TV Color Monitor AOC L20W431 29 7 PCB Layout 7 1 Main Board ...
Page 30: ...20 LCD TV Color Monitor AOC L20W431 30 ...
Page 31: ...20 LCD TV Color Monitor AOC L20W431 31 7 2 Power Board ...
Page 32: ...20 LCD TV Color Monitor AOC L20W431 32 ...
Page 33: ...20 LCD TV Color Monitor AOC L20W431 33 7 3 Tuner Board ...
Page 34: ...20 LCD TV Color Monitor AOC L20W431 34 ...
Page 35: ...20 LCD TV Color Monitor AOC L20W431 35 ...
Page 36: ...20 LCD TV Color Monitor AOC L20W431 36 7 4 IR Board ...
Page 37: ...20 LCD TV Color Monitor AOC L20W431 37 7 5 Earphone Board 7 6 Key Board 715T1822 2 ...
Page 57: ...20 LCD TV Color Monitor AOC L20W431 57 10 Exploded View ...