Power Board - AOC L27W431 Service Manual

27'' LCD TV

9.2 Power Board

D901
ML35
L906 D902 NR901 NR902
PFC CHOKE FMX-G26S 5A/3 5A/3
C905 R906
1.0uF/450V 620K 1/8W C906
N.C
R903
R907 68K 1/10W R936 D904
620K 1/8W 22 1/10W MLL4148
R904
47 1/10W
R908
0 1/8W
1 3
BD901
D10XB60
+
C910 C909 R933
RV901 0.1uF 50V_10uF 470 1/10W
Varistor IC901 TDA4863-2G(DIP-8)
2 3
C927
L904 1000PF
1 4
C903 C904
470PF/250V 470PF/250V
R909 C913 C911
10K 1/10W 0.01U 0.001uF
R910 C912 R956
C902 10K 1/10W 0.47uF/25V N.C
0.47uF/250V
R902 R901 C928
680K 1/8W 680K 1/8W N.C
R929 C926 D906
100 1/8W 0.047uF/400V MLL4148
2 3
L903 D905 C920
MLL4148 0.1uF
1 4
C918 C919
470PF 470PF
2 3
L905
1 4
C901
0.22uF/250V C921 R926
0.1uF/500V 2M
L902 L901
180 uH 180 uH R927
2M
F901
5A_250V
CN903 CN904
R928
3 3 5.6K
2 2
1 1
CONN CONN
CN901
SOCKET
1 2
C971
N.C
D940
UF4003
C940
+
22UF/50V
L951
BEAD
C964 R911 R982 C942
+
C907 0.01U 630V 330K 1/8W NC R941 C908 C941 2200PF/1KV(RR)
180uF/420V 1.0M 1/8W 0.01uF/500V 0.01uF/500V
R912 R981
330K 1/8W NC R942
1.0M 1/8W
1 R913 C952
Q901 330K 1/8W NC D907
R943 MLL4148
IRFP460A(TO-3P) 1.0M 1/8W
R905 R919
0.27 3W 0.27 3W R948
+ C945 33 1/10W
47uF50V
D944
MLL4148
R940 R914
10K 1/10W 18K 1/10W
IC941 L6565(DIP-8)
C929
N.C
R944 C946
4.3K 1/10W C947 470PF
0.001uF
R953
56K 1/10W
R964
100K 1/10W
L921 C938
BEAD 0.1uF
D927
20A/100V
1
T921 3
PQ2625/ Lp=635UH
1 11
12 D928
C922 R921 7 20A/100V
R923 2200PF 1KV 100K 2W 1
1/8W 1M 1/8W D921
BA159 8 3
9
D920 10
BA159
R924
1/8W 1M 1/8W 3
D922 R922
UF4003 0 1/10W
5
+
C923 R931
50V_10uF 4 1K
7
D
3 IC981
X
1 IC922
C
TOP246Y PC123FY2 4P
1/10W R934
1K 1/10W
C937 R935
R925 0.1uF/25V 4.7K 1/10W
6.8 1/10W R968
ZD921 4.7K
C924 6.8V IC923
0.1uF KA431
+
C925
50V_47uF R980
470
IC925
PC123
Q926
BT169
R967 C953 C966
4.7K 0.01U NC
C970
0.0022uF/250V
C915
0.0022uF/250V
P1-1
P2-1
T951 L952
PQ3225/Lp=390uH sence choke
6 7
C943 R945 R939
NC 47K 3W 5 10 NC
8
D941 C954 R946
BA159 4 NC NC
11
1 9
D942
BA159 Q942
2 12 IRFB3415
R947 D943 POWER X'FMR D946
0 1/10W UF4003 MLL4148
Q943
+ C944 IRFB3415 R954
47uF50V 10 1/10W
D947
MLL4148
R962
Q941 1K 1/8W
STP10N70ZFP R955
10 1/10W
IC942
PC123FY2 4P R963
R949 N.C
27K 1/10W
R915
4.7K 1/8W
R950 ZD941
0.39 2W N.C
C914
0.1uF
R952 R965 C959
6.8K 1/10W 10K 1/10W 0.33uF
IC943
R951 KA431
2.4K 1/10W
R937
Q922 680 1/8W
3904
IC924
PC123FY2 4P
Q924 R966
DTC144WKA 1K 1/10W
L922 C939
N.C 0.1uF
2
J932 + C930 + C931
JUMPER 1000uF/25V N.C
L923
3.5uH
2
+ C932 + C933 + C934
1000uF/25V 1000uF/25V 220uF/25V
R938
1/10W NC
C936 R932 R930
NC 39K 1/10W NC
R920
10K 1/10W
C965
0.1uF
Q925
DTC144WKA
48
FOR BACKLIGHT 24V/5A
RJ901 L953
10m common choke
+ + + + R969 R970
C948 C949 C950 C951 ZD942 1K 1K
1000uF/35V 1000uF/35V 1000uF/35V 1000uF/35V 13V
R978 1K
+ C957
10uF ZD943
12V
Q947 Q945 D949
2SC945P 2SC945P MLL4148
P1-1
R957
20 1/10W
P2-1
D950
Q948 MLL4148
2SA733P
Q946
2SA733P R960 C960
13K 1/10W NC
C958 R959 R958
470pF 11.5K 1/10W 2K 1/10W
R961
1.5K 1/10W
12V/3.5A
5V/3.0A
ZD944 ZD945 ZD946
12V 28V 26V
D926 D925 R972
MLL4148 MLL4148 NC
R983
NC
Q926
DTC144WKA
Title
Size
Custom
Date:
AOC L27W431
CN951
1
2
3
4
5
6
7
+ C955 C956 R916 R917 R918 8
470uF/35V 0.1uF 3.3K 1/8W 3.3K 1/8W N.C 9
10
10P/2.0mm
CN952
1
2
3
4
5
6
C961 7
0.1U 8
9
10
11
12
C962
100PF
12P/2.0mm
IC927 FP131
R971
18K
CN921
1
2
3
4
5
6
7
8
9
10
11
12
CN931 12P/2.0mm
1
2
3
4
5
6
7
8
9
10
11
12
13
CONN
ADPF24180A1
Document Number Rev
<Doc> A
Friday, May 21, 2004 Sheet 1 of 2