ViewSonic VP2650WB - Page 74

Soft_Power
BLUE
AM BER
+_-
1_2
1_2
+_-
AM BER
BLUE
Soft_Power
US B _Power_ctrl
VREF
+5V_USB
VREF
+24_12.5V
+24_12.5V
+24_12.5V+24_12.5V
US B _Power_ctrl
US B _Power_ctrl
2007/11/2 change R50 from 20K to 10K
2007/11/2 change R51 from 10K to 20K
2007/11/2 change C8 from NC to 1U
TP27
C2
1U Z
L13 Z600
R48
20K J
TP22
TP39
L1
47U K
L9 Z600
R13
1K F
+
C5
220U 25V
RC640 5000HRS
12
C51
330P K
TP37
R50
10K
TP29TP28
R3
20K J
R7
10K F
TP23
C50
330P K
TP33
FD1
SS24-LF
A K
TP24
C6
680P J
R10
10K F
C46
330P K
J2
2K61185109
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
U1
TL1451ACNS
CT
1
RT
2
1IN+
3
1IN-
4
1FBK
5
1DTC
6
1OUT
7
GND
8
VCC
9
2OUT
10
2DTC
11
2FBK
12
2IN-
13
2IN+
14
SCP
15
RFF
16
L10 Z600
J1
2KK2087007
1
2
3
4
5
6
7
G1
G2
TP30
TP32
Q2
2SJ598-AZ
D
G
S
L8
Z600
R12
NC
R6
3.01KF
Q1
2N3904S
B
E C
R11 2.7K
R8
15K
R52
NC
R51
20K J
C1
1U Z
TP25
TP38
+
C3
<S pec>
220U 35V M
12
L11 Z600
C47
330P K
R9
47K
Q3
2N3906S
C E
B
R1
330
TP40
FD2
SS24-LF
A K
C8
1U Z
Q5
2N3904S
B
E C
C9
6800P K
R2
3.3K
Q4
2N3906S
C E
B
C49
330P K
L12 Z600
+
C4
220U 25V
RC640 5000HRS
12
C52
10U Z
C7
100P J
R4
75K
R49
20K J
TP26
C48
330P K
R14
10K F
TP34
R5
22
ViewSonic Corporation
Confidential - Do Not Copy VP2650wb-1
71
Model
Title
Date Rev:
ViewSonic Corporation
USB POWER CIRCUIT