![background image](http://html.mh-extra.com/html/viewsonic/vp720-1/vp720-1_service-manual_1021405079.webp)
10. Schematic Diagrams
10.1.
DC TO DC
RTD CORE
POWER
ADC 1V8A
PLL 3V3A
TMDS 3V3A
0.8A Max
DDR 2.5VCC
1.5A Max
VP720 R255 0ohm, Q109 R253 R254 NC
VP920 R255 NC
BRIGHTNESS
ON / OFF
VGA_5V
BUS_POWER
PANEL_EN
PANEL_POWER
BKLT-PWM
STANDBY
VOLUME
BKLT-EN
MCU_VCC
12VCC
5VCC
5VCC
3.3VCC
1.8VCC
2.5VCC
5VCC
5VCC
12VCC
5VCC
5VCC
5VCC
5VCC
3.3VCC
D101
1N4148
1
2
Q102
AP2305
R129
NC
D130
GS1B
C134
2200PF
L107
FEB_1206
I101-A1
NC/AIC1084/TO263
1
2
3
ADJ/GND
VOUT
VIN
R136
1K
R127
1K
R256
0
D102
1N4148
1
2
Q105
2N3904
C
B
E
D123
1N4148/NC
1
2
R125
NC
C131
0.1u
D103
NC/1N4148
1
2
R138
1.5K
I105-A1
NC/AIC1084/TO252
1
2
3
ADJ/GND
VOUT
VIN
R128
4.7K
R135
10k
R132
10K
L105
NC
D132
GS1B
R255
NC/0
C132
NC
L104
FEB_1206
+
C136
100u/16V
+
C133
10uF/50V
D124
1N4148/NC
1
2
C135
2200PF
R124
1K
L102
CX000800000/1206
D131
GS1B
+
C138
100u/16V
Q101
2N3904
1
2
3
R126
1K
P101
9
8
7
6
5
4
3
2
1
C140
100nF
+
C146
47uF_16V
Q104
2N3906
1
2
3
C145
NC
C142
100nF
I105
LT1117/TO223
1
2
3
4
ADJ/GND
VOUT
VIN
4
+
C141
100uF_16V
+
C137
100u/16V
D125
1N4148
1
2
L101
CX000800000/1206
R134
4.7K
R254
1K
C144
100nF
Q109
2N3904
C
B
E
I102-A1
NC/AIC1084/TO263
1
2
3
ADJ/GND
VOUT
VIN
+
C143
100uF_16V
R253
4.7K
R133
200
I102
LT1117/TO223
1
2
3
4
ADJ/GND
VOUT
VIN
4
I101
LT1117/TO223
1
2
3
4
ADJ/GND
VOUT
VIN
4
+
C139
100uF_16V
Q103
2N3906
1
2
3
ViewSonic Corporation Confidential – Do Not Copy VP720-1_VP720b-1
76
Model
Title
Date
Rev:
ViewSonic Corporation
DC
Содержание VP720-1
Страница 74: ...8 Exploded View And Exploded Parts List ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 71 ...
Страница 75: ...ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 72 ...
Страница 88: ...11 2 MAIN PCB BOTTOM VIEW ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 85 ...
Страница 90: ...11 5 POWER PCB TOP VIEW ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 87 ...
Страница 91: ...11 6 POWER PCB BOTTOM VIEW ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 88 ...