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/ OC2
/ OC4
DV
DD1
A
V
DD1
DV
DD2
DV
DD3
DV
DD4
DV
DD5
/ OC1
/ OC3
A
V
DD2
A
V
DD3
A
V
DD4
A
V
DD5
D P1
DM1
DM2
D P2
D P0
DM0
D P3
DM3
DM4
D P4
X1
X2
RESET
PSEL
F
DV
DD3
DV
DD4
/O
C
1
DV
DD5
DM
3
A
V
DD5
DP
3
DP
4
X1
X2
DM
4
/ OC4
/ OC3
D V DD2
RESET
D V DD1
AVDD1
DM1
D P1
DM2
AVDD2
DM0
R R EF
D P2
D P0
AVDD3
A
V
DD4
/O
C
2
PAMBER2
PGREEN2
PAMBER1
PGREEN1
PAMBER2
PGREEN2
PAM
BER
1
PG
R
EEN
1
VBUS2
+3.3V
+ 5V_USB
VBUS4
+ 5V_USB
+3.3V
+3.3V
VBUS1
VBUS3
+3.3V
VBUS1
VBUS2
+3.3V
+3.3V
USB5V_UP
+ 5V_USB
+ 5V_USB
+ 5V_USB
+3.3V
+3.3V
VBUS4
USB5V_UP
+ 5V_USB
VBUS3
+3.3V
7 0 - 1 9 0mA
s p e e d u p d i s c h a r g e w i t h u p s t ream plug off
G L 8 5 2 w i l l b e r e s e t t w i c e with itself
( e x t e r n a l a n d i n ternal)
U S B c o n t r o l l e r r e s e t process:
1 . f i r s t s e l f p o w e r i n , i n t ernal reset
w a i t f o r s o m e t i m e t o c h e c k external reset
i f u p _ 5 V i n , n o rmal mode
n o t i n , s u s p end mode
2 . f i r s t u p _ 5 v i n , e x t e r nal reset
w a i t f o r s e l f p o w e r i n t o d o internal reset
i f s e l f p o w e r i n , i t w i l l b e in normal mode
i f n o t i n , i t w i l l not work
U S B c o n t r o l l e r w o rk mode:
1 . s e l f p o w e r i n , t h e n up_5Vnot in
= > s u s p e n d m o d e ( uA)
2 . u p _ 5 V i n , t h e n s e l f p ower not in
= > d o n ' t work
D N P
1 0 K p u l l - h i g h f o r s e l f p ower set up
5 1 0 K p u l l - h i g h f o r s e l f p o w e r a n d b us power switch
NC
NC
NC
NC
NC
Port # PAmber3 PAmber4
4 0
0
3 0
1
2 1
0
TP13
C 20
0.1U K
R 41
2 0 K J
R 46
15K
C 43
1U K
TP1
+
C 13
<Spec>
100U 25V
1
2
D N 5
BAV99
A
J
K
R 29
0
R 16
10K
+
C 24
<Spec>
100U 25V
1
2
L5
Z220
C 18
0.1U K
D N 2
BAV99
A
J
K
F2
5V 0.75A
R 42
0
C 37
0.1U K
R 47
15K
+
C 12
<Spec>
10U 25C
1
2
TP20
C 30
0.1U K
D N 8
BAV99
A
J
K
R 30
0
J6
2B12218A61
VCCA
1
DATA-
2
DATA+
3
GND
4
G1
G1
G2
G2
VCCB
5
DATB-
6
DATB+
7
GND
8
G3
G3
G4
G4
TP4
R 21
10K
C 38
0.1U K
F1
5V 0.75A
U4
AT93C46-10SU-2.7
DI
3
SK
2
CS
1
DO
4
VCC
8
GND
5
ORG
6
DC
7
R 43
0
T1
Z9 0
1
4
2
3
C 36
0.1U K
F3
5V 0.75A
C 21
0.1U K
C 11
0.1U K
R 37
1M
C 40
0.1U K
L3
Z220
TP15
R 31
0
C 31
0.1U K
TP12
L4
Z30
D N 9
BAV99
A
J
K
D N 3
BAV99
A
J
K
L6
Z220
L2
Z220
TP14
R 38
N C
C 17
10U 16V
R 28
0
TP19
J 4
2B12218B51
VCC
1
DATA-
2
DATA+
3
GND
4
G2
G2
G1
G1
R 19
100K
R 32
15K
C 41
0.1U K
R 27
680 F
F4
5V 0.75A
TP18
C 44
20P J
C 34
0.1U K
J 5
2B12218A61
VCCA
1
DATA-
2
DATA+
3
GND
4
G1
G1
G2
G2
VCCB
5
DATB-
6
DATB+
7
GND
8
G3
G3
G4
G4
R 25
0
C 32
0.1U K
D N 1
BAV99
A
J
K
D N 10
BAV99
A
J
K
C 25
0.1U K
C 22
0.1U K
R 33
15K
T4
Z9 0
1
4
2
3
L7
Z30
TP17
TP7
T2
Z9 0
1
4
2
3
C 42
0.1U K
R 15
10K
C 45
20P J
TP2
C 35
0.1U K
TP16
TP6
C 16
0.1U K
C 39
0.1U K
R 22
10K
R 24
2 0 K J
R 34
15K
C 19
0.1U K
+
C 10
<Spec>
10U 25C
1
2
TP11
TP3
C 26
0.1U K
D N 4
BAV99
A
J
K
R 44
15K
C 33
0.1U K
+
C 23
<Spec>
100U 25V
1
2
C 28
0.1U K
C 15
0.1U K
TP10
R 35
15K
R 36
0
U2
G1117-33T63UF
AD
J
1
OUT
2
IN
3
TAB
4
D N 6
BAV99
A
J
K
TP5
TP9
R 20
10K
R 39
10K
R 45
15K
GL852
LQFP48
U3
AGND
2
DM0
3
DP0
4
DM1
5
DP1
6
AVDD
7
AGND
8
DM2
9
DP2
10
RREF
11
AVDD
12
AG
N
D
13
X1
14
X2
15
AVD
D
16
DM
3
17
DP
3
18
AVD
D
19
AG
N
D
20
DM
4
21
DP
4
22
PSEL
F
37
PAMBER2
36
PGREEN2
35
DVDD
34
PWREN4#
29
OVCUR4#
28
TEST
27
RESET#
26
AVDD
1
DV
DD
48
DG
ND
47
PAM
BER
1
46
PG
R
EEN
1
45
DV
DD
44
P
W
RE
N1
#
43
P
W
RE
N2
#
41
O
V
CUR2
#
40
PG
AN
G
39
DV
DD
38
PGREEN3
32
O
V
CUR1
#
42
PWREN3#
31
OVCUR3#
30
PG
R
EEN
4
23
PAM
BER
4
24
PAMBER3
33
DVDD
25
T5
Z9 0
1
4
2
3
R 17
2 0 K J
R 26
0
R 23
2 0 K J
T3
Z9 0
1
4
2
3
R 40
0
TP8
D N 7
BAV99
A
J
K
C 27
10U 16V
C 29
0.1U K
+
C 14
<Spec>
100U 25V
1
2
R 18
2 0 K J
Y 1
1 2MHZ
ViewSonic Corporation
Confidential - Do Not Copy
VP2650wb-1
72
Model
Title
Date
Rev:
ViewSonic Corporation
USB CONTROLLER
Summary of Contents for VP2650WB - 26" LCD Monitor
Page 42: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 39 Step4 Step 5 Step 6 ...
Page 43: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 40 Step 7 Step 8 Step 9 ...
Page 44: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 41 Step 10 Step 11 ...
Page 51: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 48 4 Packing procedure ...
Page 53: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 50 6 Troubleshooting Flow Chart ...
Page 54: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 51 ...
Page 55: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 52 ...
Page 56: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 53 5 Power no work troubleshooting ...
Page 57: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 54 Power no PFC troubleshooting ...
Page 58: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 55 6 Transmitter Board ...
Page 76: ...9 PCB Layout Diagrams ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 73 ...
Page 77: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 74 ...
Page 78: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 75 ...
Page 79: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 76 ...