AOC LM725 Service Manual page 23

VCPU
U603 MAX810STR
3 2
VCC RST
Reset
Circuit
C605
U602
0.22uF 1
A0 VCC
2
A1 WP
3
A2 SCL
4
GND SDA
AT24C16N-10SC-2.7
VCC12V
FB601 600 OHM
VCC5V
CN601
FB602 600 OHM
1 2
3 4
5 6
7 8
9 10
OUT-R+
OUT-L+ 11 12
OUT-L- 13 14 OUT-R-
C613 C612
0.1uF 0.1uF
CONN
FB603
600 OHM R625 10K
C617 C611
100pF 1uF/25V
2 VCPU
R601
10K 1/16W
C602 22pF
X601
C603 20MHz
+
10uF/16V
C604 22pF
D601 R603
4 INT
LL4148-GS08 10K 1/16W
VCPU
R604 10K 1/16W R608 100 1/16W
R605 10K 1/16W R609 100 1/16W
8
7 R639 100 1/16W
6
5
R638 NC
R615 10K 1/16W
R614 10K 1/16W
VCC12V 2
VCC5V 2,3,4
R632
Standby
R627 10K 1/16W
Mute
R626 10K 1/16W
3 ST_DET1
3 ST_DET2
VCC5V
VCC5V
R643
R640
NC
NC
Q604
NC
1
Volume 4
R641 NC
VCPU
R642 0 1/16W
1/16W R617
120 1/16W
R616
LED_G 1 Q601
4.7K 1/16W PMBS3906
AUTO
R620 470 1/16W
RIGHT R622 470 1/16W
POWER
R624 470 1/16W
C606 C608
0.001uF 0.001uF
VCPU
RN601
R602 C601 RN602
10K 1/16W
10K
0.1uF
10K 1/16W
U601
35 43
EA/VP P0.0
42
P0.1
21 41
XTAL1 P0.2
40
P0.3
39
P0.4
20 38
XTAL2 P0.5
37
P0.6
10 36
RESET P0.7
24
P2.0
12 25
P4.3 P2.1
14 26
INT0/P3.2 P2.2
15 27
INT1/P3.3 P2.3
28
P2.4
33 29
ALE/P P2.5
32 30 R606 10K 1/16W
PSEN P2.6
2 31 R607 10K
P1.0 P2.7
3
P1.1
4 16
P1.2 T0/P3.4
5 17
P1.3 T1/P3.5
6 18
P1.4 P3.6/WR
7 19
P1.5 P3.7/RD
8 13 R610 NC
P1.6 P3.1/TXD
9 11 R611 NC
P1.7 P3.0/RXD
R634 100 1/16W
W78E65P-40 R635 100 1/16W
VCPU CN603
VCPU 1
1
2
2
3
3
R631 4
4
NC NC
NC
DVI-DSUB SELECT
R630 NC
R633 NC Mute_key
C614 C615
NC NC
CN602
DVI-DSUB SELECT 1 2 LED_BLUE R637
LED_GRN 3 4 LED_ORANGE
5 6
7 8
9 10
Mute_key
11 12
OUT-R+
C610 OUT-L+ 13 14 C616
OUT-L- 15 16 OUT-R-
0.001uF 1uF/25V
CONN
23
1/16W
POWER
ENTER
RIGHT
LEFT
AUTO
LED_B
LED_O
LED_G
R636 0 1/16W
HWRESET 4
onPANEL_5V/3.3V 2
onBACKLITE 2
CSZ 4
SCL 4
SDA 4
VCPU
1/16W
AD0 4
AD1 4
AD2 4
AD3 4
DDC_DAT 3
DDC_CLK 3
TXD 3
RXD 3
R612 R613
C618
0.1uF
NC 10K 1/16W
VCPU
VCPU
R628
R618
0 1/16W
120
Q603
PMBS3906 Q602
LED_B
1 R629 PMBS3906
4.7K 1/16W 1
470 1/16W
ENTER
R621 470 1/16W
LEFT
R623 470 1/16W
C609
C607
0.001uF
0.001uF
Title
MST8031 / MST8131 for AOC
Size Document Number
B
MPU
Date: Wednesday, July 21, 2004
AOC LM725
1/16W
LED_O
R619
4.7K 1/16W
Rev
D
Sheet 6 of 6