AOC L20W451T, Service Manual

Page: 52 / 92

20” LCD TV AOC L20W451T
52
FOR MSP34X0 or
FOR MSP34X5 WITHOUT SRS
L606
22uH
+ C640
47uF/16V
C602
0.1uF
R626
47K
� 1/16W
C651
10uF/16V
+
C634
100uF/16V
MUTE 7
+
C636
10uF/16V
R606
100K
� 1/16W
Low
+
C643
10uF/16V
U603
PT2308S
1 8
2 7
3 6
4 5
OUT1 VDD
IN1- OUT2
IN1+ IN2-
GND IN2+
C618
0.47uF/50V
C620
0.1uF/50V
C638
560pF
2
GND
C613
0.47uF/50V
SW2
R618
100
� 1/16W
C
63
3
0
.0
01
u
F
C
60
1
0
.0
01
u
F
EARR
C645 0.01uF
R
61
5
0
� 1/
16
W
C610
0.022uF/50V
R628
47K
� 1/16W
R
63
7
0
� 1/
16
W
D601
BAV70
3
1
2
C619
0.47uF/50V
C648
0.1uF
+ C609
1uF/16V
+
C635
10uF/16V
+
C622
2.2uF/16V
R605
4.7K
� 1/16W
HDMI
U601
NJM2199
1
2
3
4
5
6
7
8
9
10
11
12
13
14
FIL1
FIL2
FIL3
VOL2
VOL1
Vref IN
Vref
V+
GND
MODE
ROUT
LOUT
RIN
LIN
C617
0.01uF
CN603
PHONEJACK
1
5
4
3
2
EAR_R
R647
100
� 1/16W
R654
100K
� 1/16W
R601 NC
R619
100
� 1/16W
R630
1K
� 1/16W
5V_A
PC_L_I 2
R650
100
� 1/16W
C605
0.1uF
L610
150 OHM
Low
EAR_R 2
EARL
5V_A
+
C632
100uF/16V
12V_A
R648
100
� 1/16W
R651
100K
� 1/16W
R
64
5
1
0K
� 1/
16
W
5V_A
8V_A
D602
BAV99
3
1 2
L_OUT 2
AUDIO_SW1 7
C625
0.022uF/50V
C608
0.033uF
AUDIO_GND
Low
R631
1K
� 1/16W
R632
100K
� 1/16W
12V_A
EAR_L 2
C603
0.1uF
CP601
22pF
1 2 3 4
5 6 7 8
R
66
3
1
.1
K
� 1/
16
W
R625
47K
� 1/16W
R
64
6
1
0K
� 1/
16
W
L602
150 OHM
C615
0.47uF/50V
L609
150 OHM
EAR_R
R611
NC
C626
1000pf /50V
Audio_L- 2
R653
100K
� 1/16W
R
62
7
4
7K
� 1/
16
W
L604
22uH
8V_A
C604
0.1uF
C652
10uF/16V
C646 0.01uF
C647 0.01uF
C616
0.47uF/50V
R640
100
� 1/16W
R_OUT 2
+
C607
10uF/16V
U605
74HC4052D
12
14
15
11
1
5
2
4
6
10
9
13
3
16
8
7
X0
X1
X2
X3
Y 0
Y 1
Y 2
Y 3
EN
A
B
X
Y
VDD GN
D
VEE
+
C631
100uF/16V
High
R
66
4
1
.1
K
� 1/
16
W
AOUT_L 9
C628
0.1uF
AUDIO_SW2 7
R649
100
� 1/16W
D603
BAV99
3
1 2
L605
22uH
C629
100pF
R644
10K
� 1/16W
R624
10K
� 1/16W
C624
0.022uF/50V
SRS_CTL 7
R635
100K
� 1/16W
+
C641
10uF/16V
SW1
R
63
6
0
� 1/
16
W
C644 0.01uF
R604
100
� 1/16W
C639
560pF
C612
0.47uF/50V
EAR_L
R
61
6
0
� 1/
16
W
715T1539-1-2
+
C623
2.2uF/16V
O / P
R642
10K
� 1/16W
C621
0.47uF/50V
PC_R_I 2
Q601
PMBS3904
3
2
1
EAR_L
PC
R623 1K
� 1/16W
L608
150 OHM
2
CN602
CONN
1
2
3
4
5
R662
100
� 1/16W
R661
100
� 1/16W
R634
100K
� 1/16W
C642
0.33uF/50V
C627
0.47uF/50V
R
62
9
1
0K
� 1/
16
W
L601
150 OHM
R639
NC
L603
22uH
R633
100K
� 1/16W
LP601
120 OHM(8P4R)
1
2
3
4 5
6
7
8
R643
100K
� 1/16W
C650
0.1uF
AOUT_R 9
R638
NC
+
C606
1000uF/16V
C611
0.022uF/50V
C630
100pF
Earphone_Det
R603
0
� 1/16W
C614
0.1uF/50V
R602
100
� 1/16W
C649
0.1uF
1
AUDIO
AOC ( Top Vi ct or y) El ect r oni cs Co. , Lt d.
A3
11
14
Tuesday , June 13, 2006
Title
Size Document Number Rev
Date: Sheet of
EARL
U602
MAX9714
1 2 3 4
5
6
7 8
9
10
11
12
14
16
15
17
18
19
20
2
1
2
2
2
3
2
4
25
27
28
29
31
32
26
30
13
PGN
D
PGN
D
VD
D
VD
D
C1N
C1P
CHOLD NC
INL-
INL+
/SHDN
SS
REG
INR+
INR-
G1
G2
FS1
FS2
VD
D
VD
D
PGN
D
PGN
D
OUTR+
OUTR-
OUTR-
OUTL-
OUTL+
OUTL+
OUTR+
OUTL-
AGND
R652
100K
� 1/16W
5V_A
Earphone_Det
R620 1K
� 1/16W
L607
150 OHM
R641 NC
+
C637
10uF/16V
Audio_R- 2
EARR
L611
600 OHM
GND