ViewSonic VA502mb-1 Service Manual page 49

VCPU
U603 MAX810STR
3 2
VCC RST
Reset
Circuit
C605
0.22uF 1
A0
2
A1
3
A2
4
GND
AT24C16N-10SC-2.7
FB601 600 OHM
CN601
FB602 600 OHM
1 2
3 4
5 6
7 8
9 10
OUT-R+
OUT-L+ 11 12
OUT-R-
OUT-L- 13 14
CONN
FB603
600 OHM
C617
100pF
ViewSonic Corporation
2 VCPU
C602 22pF
C603
+
10uF/16V
C604 22pF
D601 R603
4
LL4148-GS08 10KΩ 1/16W
VCPU
R604 10KΩ 1/16W R608
R605 10KΩ 1/16W R609
U602
8
VCC
7 R639 100Ω 1/16W
WP
6
SCL
5
SDA
R638 NC
R615 10KΩ 1/16W
R614 10KΩ 1/16W
VCC12V
VCC5V
VCC12V 2
VCC5V 2,3,4
Standby
R627 10KΩ 1/16W
R626 10KΩ 1/16W
3 ST_DET1
3 ST_DET2
VCC5V
C613 C612 VCC5V
0.1uF 0.1uF
R643
R640
NC
NC
Q604
NC
1
R641 NC
R642 0Ω 1/16W
R625 10KΩ 1/16W
C611
1uF/25V
R616
LED_G
4.7KΩ 1/16W
AUTO
R620 470Ω 1/16W
RIGHT R622 470Ω 1/16W
POWER R624 470Ω 1/16W
46
Confidential - Do Not Copy
VCPU
RN601
R601 R602 C601
10KΩ 1/16W
10KΩ 1/16W 0.1uF
10KΩ 1/16W
U601
X601 35 43
EA/VP P0.0
42
P0.1
21 41
XTAL1 P0.2
20MHz 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
INT
INT0/P3.2 P2.2
15 27
INT1/P3.3 P2.3
28
P2.4
33 29
ALE/P P2.5
32 30
PSEN P2.6
100Ω 1/16W 2 31
P1.0 P2.7
100Ω 1/16W 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
P1.6 P3.1/TXD
9 11
P1.7 P3.0/RXD
W78E65P-40
VCPU
R632 R631
Mute NC NC
DVI-DSUB SELECT
R630 NC
Mute_key
R633 NC
C614 C615
NC NC
Volume 4
VCPU
R617
120Ω 1/16W
1 Q601 CN602
PMBS3906
LED_BLUE
DVI-DSUB SELECT 1 2
LED_GRN LED_ORANGE
3 4
5 6
7 8
9 10
11 12
C606 C608 C610 OUT-L+ 13 14
OUT-L- 15 16
0.001uF 0.001uF 0.001uF
CONN
VA502mb-1
RN602
10KΩ 1/16W
POWER
ENTER
RIGHT
LEFT
AUTO
LED_B
LED_O
LED_G
R636 0Ω 1/16W
HWRESET 4
onPANEL_5V/3.3V 2
onBACKLITE 2
CSZ
SCL
SDA
R606 10KΩ 1/16W
VCPU
R607 10KΩ 1/16W
AD0
AD1
AD2
AD3
R610 NC
DDC_DAT 3
R611 NC
DDC_CLK 3
R634 100Ω 1/16W
TXD
R635 100Ω 1/16W
RXD
VCPU CN603
1 R612 R613
1
2 C618
2
3
3
4 0.1uF
4
NC 10KΩ 1/16W
NC
VCPU
R628
0Ω 1/16W
Q603
PMBS3906
1 R629 LED_B
4.7KΩ 1/16W
R637 470Ω 1/16W
ENTER
R621 470Ω 1/16W
R623 470Ω 1/16W LEFT
Mute_key
OUT-R+
C616 C609
OUT-R-
C607
1uF/25V 0.001uF
0.001uF
4
4
4
4
4
4
4
3
3
VCPU
R618
120Ω 1/16W
Q602
PMBS3906
1 R619 LED_O
4.7KΩ 1/16W
ViewSonic Corporation
Model
Title
MCU
Date Rev: