AOC LM721A Service Manual page 20

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6.2 Inverter/Power Board
1.
CONVERTER SCHEMATICS
CON101
+12V_POWER( 88A304-1S)
F101
5A/63V(88A304-1S)
GND_F
TP108
1
TP_SMD
TP107
1
TP_SMD
+A3.3V
TP106
+3.3V
1
TP_SMD
+A2.5V
TP105
1
TP_SMD
+2.5V
GND
+12V
C0N102
+12V
12
GND
11
+2.5V
10
+A2.5V
9
+3.3V
8
+A3.3V
7
GND
6
GND
5
+5V
4
+A5V
3
DIM
2
ON/OFF
1
33A8009-12G-H
AOC (Top Victory) Electronics Co., Ltd.
Title
1.POWER
Size
Document Number
A
IDPC7425A6(715L963-1-2)
Date:
Friday, August 16, 2002
2.
INVERTER SCHEMATICS
All manuals and user guides at all-guides.com
+12V
L101
INDUCTOR(71L55-28)
ON/OFF
DIM
+A5V
+5V
GND
TP_SMD
TP109
GND
1
TP_SMD
TP112
1
TP_SMD
TP111
1
TP_SMD
TP110
1
TP_SMD
TP104
1
TP_SMD
TP103
1
TP_SMD
TP102
1
TP_SMD
TP101
1
Sheet
of
2
1
U101
SI-8050SD
1
VIN
C101
C102
220 uF/25V
220 uF/25V
C108
0.1 uF/25V
C109
0.1 uF/25V
+5V
C113
470 uF/16V
is power GND
Rev
A
is signal GND
Page 23 23 23 23 of of of of 59 59 59 59
Page
Page
Page
TO263
4
FBK
2
L102
Vout
150UH
D101
SR34 OR SMAL340
R101
OPEN
U102
AIC1084-33CM
3
VIN
Vout
C104
470 uF/16V
R106
0
U103
3
VIN
+5V
C106
470 uF/16V
R108
+A5V
R102
0
R103
0(OP)
R104
3K(OP)
C103
470 uF/16V
R109
1K(OP)
+3.3V
L104
2
600(120
C105
C111
OPEN
0.1uF/25V
R105
open
AIC1084CM
L
2
Vout
C107
C112
470 uF/16V
0.1U/25V
R107
150
150

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