Schematic Diagram - ViewSonic VP171 Service Manual

5
+12VA
CN1
+12VA
1
2
C6
D 3
C5
4
0.1uF
470uF/16V
TU2001WNR-5P
GND
+12VA
JP2
1
2
BNC-2
Debug
C
+12VA
L4 22uH
1
C27 C28
100uF/16V 0.1uF
LESR
C33
+5V
B
L8 22uH
C38
C36
0.1uF 100uF/16V
+5V
R12
10K
C50
A
NC
3
C52
1
3 PNL_EN
NC
2
Q3
C54 2N3904
NC
R14
NC
5
4
+12VA
+12VIN
L1 22uH
C7
C8 C10
0.1uF 2200uF/16V
0.1uF
3 BRIGHT
C13
NC
NC
+5VIN
U4 AP1501 L3 150uH
L5
2
+VIN VOUT
4
VOS
C29 C30
5V_MAIN=2.5A
D1
0.1uF 1000uF/10V
IN5822
0
+12V
C39 Q1
C176 R9 AO3400
0.1uF
0.1uF 100K Power NMOS
NMos
R10
100K
0805
C49
NC
3
C51
1
0.1uF
2
R13 Q2
33 C53 2N3904
NC
C
3
1 2
B E
4
ViewSonic Corporation

11. Schematic Diagram

3
R2 R3 C11 C12 BRI
NC 4.7K 0.1uF 0.1uF
0805
ON
R5 1K
C14 C15
NC 100uF/16V
R6 0
3 BLON
C20 C21
NC 10k
+5V
22uH
C31
0.1uF
VPL
R11 C44 C45 C46
750R 0.1uF 0.1uF
1000uF/10V
0805
3
68
Confidential – Do Not Copy
2
U1
AIC1084
3
+5V VIN
JP1
C1
C2
1
2
100uF/16V
0.1uF
3
4
5
6
7
8
9
10
HEADER 10-2.0
U2
XC6201
3
+5V VI VO
C16 C17
0.1u
100uF/16V
+5V
C22 C23
100uF/16V 0.1uF
+3.3VD
C34
0.1uF
+3.3VA
C40
0.1uF
+2.5VD
C42
0.1uF
C47
0.1uF
Close to GM5120
Title
Size Document Number
Date: Monday, April 14, 2003
2
VP171/s/b-1
1
+2.5VD
1
VOUT
R1
C3 C4
330/1%
100uF/16V
0.1uF
D
R4
330/1%
+3.3VA
1
C18 C19
0.1u
100uF/16V
C
+3.3VD
U3
AIC1084
3 1
VIN VOUT
R7
200/1%
C24 C25
0.1uF 100uF/16V
3.3V_MAIN MAX 5A
R8
330/1%
3.3V_DVDD
L6 BEAD 0805
(GM5120)
C35
B
0.1uF
3.3V_AVDD
L9 BEAD /0805
(GM5120)
C41
0.1uF
2.5V_VDD
L10 BEAD /1206
C43
(GM5120)
0.1uF
2.5V_AVDD
L11 BEAD /0805
C48
0.1uF
A
POWER
Rev
VP171/s/b
Sheet
1