Power Board Schematic Diagram - AOC PB20C Service Manual

9.2 POWER BOARD SCHEMATIC DIAGRAM

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