Optima L903A, Service Manual, Page: 24 / 54

19" Wide LCD Color Monitor Optima L903A
24
6.2 Power Board
R916
100 1206
R937
100 1206
+5V
+12V
+12V
GND
80GL17T 37 L GP
GND
+5V
DIM
ON/OFF
GND
D902
FR103
F902
FUSE
R910
22 Ω 1/4W
G1899-1-HP-X-1-060720
TO PIN3
F903
FUSE
TO PIN3
+ C904
470uF/25V
+
C912
470uF/25V
1 2
3
CN901
SOCKET
R921
1K 0805
C903
0.47uF/275V
R922
1K 0805
+ C907
NC
+
C906
22UF/50V
C900
0.0022UF
1
2
4
3
IC902
VAR901
NC
F901
FUSE
C933
0.0015uF/2KV
1
2
ZD902
RLZ5.6B
6
9 5
4
2
1
11
7
12
10
8
T901
R911
1K Ω 1/4W
R909
5.1 Ω 1/4W
C913
NC
Q903
STP10NK70ZFP
1
4
3
2
- +
BD901
4A 800V
1
2
ZD903
PTZ9.1B
1
2
FB901
BEAD
R901
680K Ω 1/4W
R902
680K Ω 1/4W
C908
0.1uF
GND
GND
C930
0.0015uF/2KV
R927
10K
Ω 1/4W
R903
680K Ω 1/4W
R919
470 Ω 1/4W
1
2
ZD906
NC
C918
0.1uF
R939
NC
1
2
ZD901
RLZ13B
C919
0.1uF
C909
220pF
1
2
ZD907
NC
1
2
ZD905
NC
1 4
2 3
L901
2.0MH
R904
100K Ω 1/4W
Title
Size Document Number Rev
Date: Sheet of
1
1.POWER OUTPUT 12V & 5 V
AOC (Top Victory) Electronics Co., Ltd.
1 1 Friday , July 21, 2006
C910
470pF/50V
C931
1000PF/500V
C901
1000PF/250V
R938
100K
Ω 1/4W
R905
100K 2W
Over voltage protection
C902
1000PF/250V
1
2
t
NR901
NTCR
+ C935
470uF/25V
NC
C934
JUMP
RT
1
CS
3
GN
D
4
N.C
7
CO
MP
2
OUT
5
VC
C
6
HV
8
LD7575
IC901
LD7575
R923
33K 0805 1%
Over current protection
Over voltage protection
1
2
3
D908
SP20150
1
2
3
4
5
6
8
9
10
7
11
12
CN902
R941
NC
R931
100K Ω 1/4W
R913
100K 0805
+
C937
470UF/25V
+
C911
470UF/25V
1 4
2 3
L902
73L 174-65-LS
R912
10K 0805
1
2
ZD904
RLZ18B
R920
1K 0805
L904
3.5UH
L903 3.5UH
+
C936
470uF/25V
R924
2.4K 0805 1%
R926
2K 0805
+ C905
100uF/450V
R925
3.6K 0805 1%
R914
0.47 2W
+5V
+12V
DIM
ON/OFF
!
!
D903
0 Ω 1/4W
D904
1N4148W
D901
FR107
C917
0.1uF
IC903
KIA431A-AT/P
C916
0.1uF
C932
0.0015uF/2KV
IC904
NC
R934
47 1206
R935
47 1206
R906
47 1206
1
2
3
D909
SP20100
R936
100 1206