AOC PB20C, Service Manual

Page: 40 / 81

39
9.2 POWER BOARD SCHEMATIC DIAGRAM
R 920
47_1/2W _ M
D 902
P S 10 2R
C 909
N C
R 927
2.43K F
-
+
B D90 1
G B U 405 2
1
3
4
Q 902
2N 3906
!
SG6841
IC901
S G68 41
1
3
4
7
2
5 6
8
D 903
1N 4148/S MD
!
O
O
O
T901
P Q26 /22.5
4
12
6
7
3
2
8
11
C 906
152P /1K V
R 902
1M(12 06)
12V
12V
FB 901
B E A D
!
+
C 907
22U F/50V
C 918
0.1UF
!
R 913
20K
!
R 917
100
R 905
1M(12 06)
C 912
0.1UF
C 919
N C
R 919
47_1/2W _ M
+ C 905
150uF/400 V
5V
D 911
MOS P E C 2010 0
C 903
0.47uF/250V
!
ZD 901
R LZ20B C 911
0.1uF/50V
L901
73L17 4-29 -LS
1 4
2 3
R 910
0
!
IC903
H TL431
R 904
1M(12 06)
F902
5A /24 V /1206
R 923
0
C 901
220P F/250V
!
C 917
0.1UF
R 909
10(1206)
R 916
4.7K
L903
73L-253-91L
1 2
!
IC902
P C12 3FY 2 4P
1
2
4
3
D 901
FR 107
Q 901
2S K 2 996
1
3
2
+
C 920
1000U F/16V
GND
R 907
1M(12 06)
R 921
240(1206)
R 901
1M(12 06)
80LL17T-5
12V
+
C 914
2200U F/16V
!
R 926
9.31K F
R 908
3R 3/1 206
R 903
100K _2W
F901
2.5A /250V
TO INVERTER
GND
!
5Vout
+
C 916
470U F/16V
R 914
0.3_2W
R 912
20K
C 904 0.22uF/275V
!
R 924
1K
12Vout
ZD 902
R LZ12B
L902
73L17 4-31
1 4
2 3
!
R 918
4.7K
A DJ
R 906
1M(12 06)
C 902
220P F/250V
FB 902
B E A D
C 908
0.1UF
O N/O FF
!
R 922
1K
5V
Q 903
2N 3904
C 921
4700P F/250V
C N90 1
1 2
3
R 911
24K F
GND
!
R 925
1K
!
<D oc> <R evC ode>
<Ti tl e>
B
1 1 Tuesd ay, N ovember 16, 20 04
Ti tl e
S ize D ocument N umber R ev
D ate: S heet of
C 910
N C
CN902
7
6
5
2
1
3
4
8
9
10
!
C 913
102P _500 V
!
R 915
4.7K
TO AUDIO
D 910
MOS P E C 2010 0
+
C 915
2200U F/16V
N R90 1
61L58 -050 -W T