ViewSonic VP2330WB Service Manual - Page 67

Aic1084/to252 Top View, Rbs31 Topview, Mmbt3904l Top View

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4500-8P-R CN7 1 2 3 4 +12V 5 6 7 ADJ ON/OFF +20V 8 C199 330pF R217 24K C200 1nF U23 1 2 3 4 CS VIN ITH/RUN BOOST FB DRI GND SW 8 7 6 5 AIC1577 C203 0.1u R220 0R C202 0.1u R222 47 C201 1nF Vout=0.8(12K+62K)/12K=4.93 4 5 3 6 2 7 CX000800000 L29 1 2 +12V C204 330u/16V C211 0.1u C208 0.1u C205 330u/16V Q9 AF4410N 8 1 D28 SPL1040PT L28 100uH 2 1 1 3 +5V CX000800000 L30 1 2 2 1 3 2 C216 1000u/6.3V C209 0.1u C210 1nF C184 100u/16V +5V L23 CX000800000 + R218 12K/1% U16 3 VIN VOUT 2 1 ADJ/GND AIC1084/TO252 R219 62K/1% +3.3V + C181 100u/16V R166 200/1% C180 100u/16V R169 330/1% +5V L25 CX000800000 + U18 3 VIN VOUT 2 1 ADJ/GND 4 4 LT1117/TO223 0.8A Max +2.5V + R174 200/1% C185 100u/16V 1, 2 Modify Power AIC 1563 to AIC 1577 Q10 SI2301DS +5V 1 3 2 1 R82 82K/6 R83 2 C167 2200P/6 2 D3 1 C168 2200P/6 82K/6 Q3 G2 1 S DTC144EUA 2 USB_CTRL 4 C3 3 1 B2 1E USB_VDD R84 10K/6 C170 C169 1 330U/16V 0.1U/6 2 USB_VDD CN6 43 21 ENTERY_3273-G04N C206 1000u/6.3V +20V L32 1 2 CX000800000/NC U24 1 VIN VOUT 3 MC7818/CASE936/NC +18V 220u/35V/NC C207 2 GND 220u/35V/NC C214 C215 0.1u/NC 3,D28 L28 C216 +18V +12V +5V L16 CX000800000/NC L17 CX000800000/NC L18 CX000800000 R161 0R(NC) 1u 4.7K C166 R158 Q4 AO4411 1 8 2 7 3 6 4 5 Panel_Power L20 CX000800000 C173 0.1u C174 330u/16V C175 0.1u R221 2.2K Q5 MMBT3904 5 PPWR R162 4.7K 3 2 1 +5V 4.7K/NC R167 5 PBIAS 5 INVSW R216 0/NC R168 R170 0R 4.7K/NC 2 ON/OFF 3 1 Q7 MMBT3904/NC R176 200/1% C188 100u/16V +5V L26 CX000800000 + U20 3 VIN VOUT 2 1 ADJ/GND AIC1084/TO252 +1.8V + R180 330/1% C187 100u/16V CN6,C169,C170 CN6 R173 +5V 3 10K 21 R175 100K ADJ MMBT3904L TOP VIEW 0.1u 5 BRIGHTNESS 3 R177 4.7K 2 1 Q8 MMBT3904 R181 147R/1% C186 +3.3V R179 1 3 +3.3V 10K R178 2 4 RBS31 TOPVIEW U19 RBS31 220R 1 4 2 3 SWITCH 5 2 1 3 AIC1084/TO252 TOP VIEW 2 1 3 AIC1084/TO252 TOP VIEW H1 MTH276D126 2 9 3 8 4 1 7 5 6 H2 MTH276D126 2 9 3 8 4 1 7 5 6 H3 MTH276D126 2 9 3 8 4 1 7 5 6 H4 MTH276D126 2 9 3 8 4 1 7 5 6 ViewSonic Corporation Model POWER Title Date Rev: ViewSonic Corporation Confidential - Do Not Copy 64 VP2330wb

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0.8A Max
2
3
1
AIC1084/TO252 TOP VIEW
2
1
AIC1084/TO252 TOP VIEW
3
2
4
3
RBS31 TOPVIEW
1
1
3
2
MMBT3904L TOP VIEW
Vout=0.8(12K+62K)/12K=4.93
Modify Power AIC 1563 to
AIC 1577
1
D
2
3
B
G
C
E
2
3
S
1
1
2
3
1,
2
3,D28 L28 C216
CN6,C169,C170
CN6
ON/OFF
ADJ
ON/OFF
ADJ
PBIAS
5
BRIGHTNESS
5
PPWR
5
SWITCH
5
INVSW
5
USB_CTRL
4
+5V
+5V
+5V
+12V
Panel_Power
+3.3V
+2.5V
+1.8V
+5V
+18V
+20V
+5V
+5V
+3.3V
+3.3V
+5V
+12V
+18V
+20V
+12V
USB_VDD
+5V
USB_VDD
C200
1nF
R179
220R
C199
330pF
R217
24K
R219
62K/1%
R218
12K/1%
Q7
MMBT3904/NC
2
3
1
U20
AIC1084/TO252
1
2
3
ADJ/GND
VOUT
VIN
R162
4.7K
R181
147R/1%
C201
1nF
R170
4.7K/NC
+
C188
100u/16V
Q4
AO4411
2
3
4
5
7
6
8
1
C203
0.1u
L16
CX000800000/NC
CN6
ENTERY_3273-G04N
1
2
3
4
Q5
MMBT3904
2
3
1
C175
0.1u
R180
330/1%
1
H3
MTH276D126
2
3
4
5
6
7
8
9
1
H2
MTH276D126
2
3
4
5
6
7
8
9
1
H1
MTH276D126
2
3
4
5
6
7
8
9
+
C187
100u/16V
R169
330/1%
C173
0.1u
+
C184
100u/16V
L26
CX000800000
C174
330u/16V
L18
CX000800000
R167
4.7K/NC
R176
200/1%
CN7
4500-8P-R
1
2
3
4
5
6
7
8
R222
47
+
C181
100u/16V
R166
200/1%
L29
CX000800000
1
2
R168
0R
L30
CX000800000
1
2
R221
2.2K
R216
0/NC
L20
CX000800000
C186
0.1u
R173
10K
Q8
MMBT3904
2
3
1
R158
4.7K
U18
LT1117/TO223
2
3
1
4
VOUT
VIN
ADJ/GND 4
U16
AIC1084/TO252
1
2
3
ADJ/GND
VOUT
VIN
C208
0.1u
R161
0R(NC)
L23
CX000800000
R174
200/1%
+
C185
100u/16V
L28 100uH
1
2
C166
1u
C205
330u/16V
+
C180
100u/16V
C206
1000u/6.3V
C209
0.1u
C215
0.1u/NC
C214
220u/35V/NC
L32
CX000800000/NC
1
2
U24
MC7818/CASE936/NC
3
1
2
VOUT
VIN
GND
C204
330u/16V
C167
2200P/6
1
2
C211
0.1u
Q10 SI2301DS
3
2
1
R83
82K/6
Q3
DTC144EUA
2
3
1
D28
SPL1040PT
1
2
3
R82
82K/6
U23
AIC1577
1
2
3
4
5
6
7
8
CS
ITH/RUN
FB
GND
SW
DRI
BOOST
VIN
C216
1000u/6.3V
C168
2200P/6
1
2
C170
330U/16V
C207
220u/35V/NC
C169
0.1U/6
1
2
R177
4.7K
R178
10K
R84
10K/6
Q9
AF4410N
2
3
4
5
7
6
8
1
R220
0R
U19 RBS31
1
2
3
4
L17
CX000800000/NC
L25
CX000800000
C202
0.1u
R175
100K
C210
1nF
1
H4
MTH276D126
2
3
4
5
6
7
8
9
Model
Title
Date
Rev:
ViewSonic Corporation
POWER
ViewSonic Corporation
Confidential - Do Not Copy
VP2330wb
64