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AOC Manuals
LCD TV
L20W451T
Service manual
Power Board - AOC L20W451T Service Manual
20"
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20" LCD TV
10.2 Power Board
715T1599-4
R910
L910
1/8W
510K
PFC CHOKE
R911
1/8W
510K
R915
1/8W
39K
R916
10
C910
R912
1/8W
1uF
510K
VCC3
D911
IC910
MLL4148
8
7
VCC
OUT
FA5500AN
3
4
MUL
IS
R917
R914
470
10K
C914
0.001uF
C911
R913
1/16W
0.01uF
10K
C912
C913
0.47uF/16V
0.047uF
BD901
GBU805
2
3
VCC3
Q940
PMBS3906
R940
L902
10K
R941
L
1/8W
10K
R993
3.3K
PC991
PC123
C901
C902
470pF/250V
470pF/250V
Q991
PMBS3904
C907
0.47uF/275V
L901
L
VR901
v aristor
R901
R902
R903
680K
1/8W
680K
680K
1/8W
1/8W
C906
0.22uF/275V
L903
RT901
150uH
SCK10035
L904
F901
150uH
FUSE
1
2
CN901
SOCKET
D910
FMX-G26S
R931
1/8W
200K
C916
R919
0.0022uF
+
+
1/8W
510K
C931
C917
82uF
NC
R930
200K
1/8W
FB904
BEAD
R932
100K
R920
1/8W
510K
4
8
GND
HV
2
5
FB
DRV
3
CS
Q910
1
6
VCC2
ADJ
VCC
1
20NM60
IC930
R921
LD7575
1/8W
510K
C932
0.001uF
R933
100K
1/8W
R918
2W
0.22
C915
12V
NC
R950
1/4W
470
R922
1/16W
10K
C930
PC950
0.001uF
PC123
C950
0.1uF
R951
VCC2
VCC1
2.43K
Q931
PMBS3904
C951
R938
0.1uF
1/8W
2K
TL950
H431BA
+
+
C934
C933
1/10W
47uF/50V
ZD930
47uF/50V
R954
RLZ15B
2.43K
1/4W
12V
ON/OFF
R992
1/8W
10K
VCC2
Q941
2N5060
C940
0.47uF/16V
C980
R980
0.001uF
100
1/2W
3
2
1
D981
FB903
NC
BEAD
T901
POWER X'FMR
3
1
2
7
1
R934
D980
2W
100K
SRF20200C
D930
10
BY V26E
11
3
12
D971
D931
FB92
4
NC
C971
1/8W
MLL4148
BEAD
3
2200uF
9
2
8
1
R935
6
10
Q930
3
STP8NK80ZFP
2
1
D970
R936
SRF20150C
470
R937
2W
0.27
C975
R971
1/2W
0.001uF
47
D932
FR103
VCC1
C905
0.001uF/250V
12V
-12V
24V
C905
0.0022uF/250V
R952
R953
12K
1/4W
130K
1/4W
+
1/16W
C960
470uF/16V
2
VCC
7
RT
1/16W
5
SCP
R960
6
DTC
COMP
1/10W
33K
C961
IC960
0.1uF
C962
C963
FP5001
R961
NC
R962
0.1uF
1/16W
1/16W
43K
47K
D990
ZD990
MLL4148
MTZJ30D
VCC1
+12V
1
2
24V
D991
ZD991
MLL4148
MTZJ15B
R942
R990
1
2
-12V
3.3K
1/8W
3.3K
1/4W
D922
ZD992
MLL4148
MTZJ T 6.2B
PC990
1
2
5V
PC123
R991
1/8W
2K
R943
1/8W
2K
Q990
PMBS3904
56
L980
2.8uH
+
+
C981
C982
1000uF/35V
1000uF/35V
C972
C973
2200uF
1000uF/16V
L970
12V
2.8uH
Q960
P06P03LDG
L960
10uH
3
2
Q961
R968
PMBS3904
R970
1K
1K
D960
D961
C967
SBM84
NC
1000uF/10V
R967
R969
0
Q962
0
PMBS3906
C966
R964
1/16W
0.47uF/16V
3K
4
FB
C964
R963
R965
1/16W
1/16W
NC
3K
20K
3
C965
0.1uF
R966
1/16W
4.7K
1
+12V
2
3
+5V
4
5
GND
6
7
8
ON/OFF
9
10
PWM
CN903
CONN
AOC L20W451T
24V
F980
FUSE
+24V
22.8~25.2V
C983
0.0~2.0A
ZD980
0.1uF
500mVpp/20MHz
SMAJ26A
GND
C974
0.1uF
+12V
F970
11.4~12.6V
-12V
FUSE
0.0~3.0A
120mVpp/20MHz
FB960
5V
BEAD
F960
FUSE
+5V
11.4~12.6V
0.1~3.0A
+
+
100mVpp/20MHz
C969
C968
0.1uF
1000uF/10V
1
+24V
2
3
4
5
6
GND
7
8
9
10
11
12
13
PWM
14
ON/OFF
CN904
CONN
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