ViewSonic VX800-3 Service Manual - Page 8

Electrical Characteristics

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1.2 Electrical Characteristics 1.2-1 Power Supply AC Input Input Voltage Frequency Power Consumption: 60 W (max) Less than 3W Current Rating AC90-264V 47 / 63Hz on mode power save mode (audio cable not connected) 0.7A @ AC100-240V 1.2-2 LCD LCD Chi-Mei panel(TFT-MVA) Effective display size 357.12 (H) x 285.696 (V) mm (typ) 18.0" / 45.72 cm diagonal Pixel number 1280 x 1024 pixels Color filter arrangement R.G.B. vertical stripe Display method TFT, normally black Drive method Active matrix (TFT) - MVA Dot pitch 0.093 (H) x 0.279 (V) mm Pixel pitch 0.279 (H) x 0.279 (V) mm Dot number 1280 x 1024 x 3 dots Backlight Edge-lighting type with 6 CCFLs (Cold Cathode Fluorescent Tube) Brightness 200 cd / m2 (min: center / all white) Contrast ratio 400:1 (min) Display color 16,777,216 Typical viewing angle Up 80° / down 80° / right 80° / left 80° (min.) (Contrast ratio>10 at Ta=25°C, 77°F) Response time 25 msec (Typical at 25 degree C) 1.2-3 Interface Signals 2.3.1 RGB Video Signals 2.3.1.1 Separate Sync. Signals Analog R, G, B 0 - 0.7 Vp-p Signal Level 75ȍ± 5% Sync Level TTL level Sync Polarity independent 2.3.1.2 Sync On green, Composite Sync ViewSonic Corporation 4! Confidential - Do Not Copy VX800-3

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1.2 Electrical Characteristics
1.2-1 Power Supply
AC Input
Input Voltage
AC90-264V
Frequency
47 / 63Hz
Power Consumption:
60 W (max)
on mode
Less than 3W
power save mode (audio cable not connected)
Current Rating
0.7A
@ AC100-240V
1.2-2 LCD
LCD
Chi-Mei panel(TFT-MVA)
Effective display size
357.12 (H) x 285.696 (V) mm (typ)
18.0” / 45.72 cm diagonal
Pixel number
1280 x 1024 pixels
Color filter arrangement
R.G.B. vertical stripe
Display method
TFT, normally black
Drive method
Active matrix (TFT) – MVA
Dot pitch
0.093 (H) x 0.279 (V) mm
Pixel pitch
0.279 (H) x 0.279 (V) mm
Dot number
1280 x 1024 x 3 dots
Backlight
Edge-lighting type with 6 CCFLs
(Cold Cathode Fluorescent Tube)
Brightness
2
0
0 cd / m
2
(min: center / all white)
Contrast ratio
4
00:1 (min)
Display color
16,777,216
Typical viewing angle
Up 80° / down 80° / right 80° / left 80° (min.)
(Contrast ratio>10 at Ta=25°C, 77°F)
Response time
25
msec (Typical at 25 degree C)
1.2-3 Interface Signals
2.3.1 RGB Video Signals
2.3.1.1 Separate Sync. Signals
Analog R, G, B
0 - 0.7 Vp-p
Signal Level
75
± 5%
Sync Level
TTL level
Sync Polarity
independent
2.3.1.2
Sync On green, Composite Sync
ViewSonic Corporation
Confidential – Do Not Copy
VX
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