![background image](http://html.mh-extra.com/html/viewsonic/vp2650wb-26-lcd-monitor/vp2650wb-26-lcd-monitor_service-manual_1021379074.webp)
S o f t _P ower
B L U E
A M B E R
+ _-
1 _2
1 _2
+ _-
A M B E R
B L U E
S o f t _P ower
U S B _P ower_ctrl
V R E F
+ 5 V _US B
V R E F
+ 2 4_12.5V
+ 24_12.5V
+ 24_12.5V
+ 24_12.5V
U S B _P ower_ctrl
U S B _P ower_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
T P 27
C2
1 U Z
L 13
Z 6 00
R 4 8
2 0 K J
T P 22
T P 39
L1
4 7 U K
L9
Z 6 00
R 1 3
1 K F
+
C5
2 2 0 U 25V
R C 6 4 0 5 0 0 0HRS
1
2
C 5 1
3 30P K
T P 37
R 5 0
1 0 K
T P 29TP28
R3
2 0 K J
R7
1 0K F
TP23
C 5 0
3 30P K
T P 33
F D 1
S S 24-LF
A
K
T P 24
C6
6 8 0 P J
R 1 0
1 0K F
C 4 6
3 30P K
J 2
2K 61185109
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
U1
T L 1 451A CNS
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
L 10
Z 6 00
J 1
2K K 2087007
1
2
3
4
5
6
7
G1
G2
T P 30
T P 32
Q 2
2 S J598-A Z
D
G
S
L8
Z 600
R 1 2
NC
R6
3 .01K F
Q 1
2 N 3 904S
B
E
C
R 1 1
2.7K
R8
1 5 K
R 5 2
NC
R 5 1
2 0K J
C1
1 U Z
TP25
TP38
+
C3
< S pec>
2 2 0 U 35V M
1
2
L 11
Z 6 00
C 4 7
3 3 0P K
R9
4 7 K
Q 3
2 N 3906S
C
E
B
R1
3 30
TP40
F D 2
S S 24-LF
A
K
C 8
1 U Z
Q 5
2 N 3904S
B
E
C
C 9
6 800P K
R2
3 .3K
Q 4
2 N 3906S
C
E
B
C 4 9
3 30P K
L 12
Z 6 00
+
C 4
2 2 0 U 25V
R C 6 4 0 5 0 00HRS
1
2
C 5 2
1 0 U Z
C7
1 0 0P J
R4
7 5 K
R 4 9
2 0K J
T P 26
C 4 8
3 3 0P K
R 1 4
1 0 K F
TP34
R5
22
ViewSonic Corporation
Confidential - Do Not Copy
VP2650wb-1
71
Model
Title
Date
Rev:
ViewSonic Corporation
USB POWER CIRCUIT
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 ...