AOC M20S651B, Service Manual

Page: 34 / 79

20
” LCD TV Color Monitor
AOC M20S651B
34
8. Schematic Diagram
8.1 Main Board
REF
PR_CR
REF
Q404
BC847B
1
3
2
REF
R496
4.7k
+5V_SW
C472
100P
C488
33P
REF
REF
R484
10k
REF
TV_R
R502
4.7k
REF
REF
C487
270P
R495
0 OHM
R498
4.7k
R511
nc
C484
270P
R504
75
R508
100
REF
ROUT
C486
33P
R507
100
C485
270P
R488
10k
R497
4.7k
HD_Y
U402
PI5V330W
2
3
5
6
11
10
13
1
14
8
12
9
7
4
16
15
S1A
S2A
S1B
S2B
S1C
S2C
S2D
N
S1D
GN
D
DD
DC
DB
DA
VC
C
O
Q406
BC847B
1
3
2
TV_G
R499
4.7k
01
1
YPrPb-SWITCH
AOC (Top Victory) Electronics Co., Ltd.
A3
1 14 Tuesday , July 25, 2006
Title
Size Document Number Rev
Date: Sheet of
Q403
BC847B
1
3
2
R492
0 OHM
R489
10k
R509
nc
REF
R505
75
C471
100P
+
C404
10uF/16V
R494
130 OHM
+5V_SW
+5V_SW
REF
+
C401
10uF/16V
REF
FB411
B0805/0
REF
R506
75
REF
Q401
BC847B
1
3
2
REF
R485
10k
REF
+
C405
10uF/16V R493
0 OHM
Y UV_TV_SW
R503
100
+
C402
10uF/16V
R501
4.7k
+
C406
10uF/16V
GOUT
+
C403
10uF/16V
R491
130 OHM
FB412
B0805/0
R486
10k
BOUT
FB410
B0805/0
REF
R490
130 OHM
REF
PB_CB
R487
10k
REF
REF
REF
REF
REF
REF
Q402
BC847B
1
3
2
TV_B
Q405
BC847B
1
3
2
C483
33P
C473
100P
R510
nc