2. Specification
1. General Requirements
General Specifications
Test Resolution & Frequency
“1280 x 1024” @ 60Hz
Test Image Size
Full Size
Contrast and Brightness Controls
Factory Default:
Contrast = 100%, Brightness = 100%
2. Signal Interface
Video Interface
Analog Input Connector
DB-15 (Analog)
DVI = DVI-D (Digital)
Default Input Connector
Defaults to the first detected input
Video Cable Connector DB-15 Pin out
Compliant DDC 1/2B.
Video Signals
Video RGB (Analog)
Separate Sync / Composite Sync / SOG
TMDS (Digital)
Video Impedance
75 Ohms (Analog), 100 Ohms (Digital)
Exclusions Not
compatible with interlaced video.
3. Power
Power Supply
Input Voltage Range
90 to 264 VAC
Power Dissipation
40 Watts (Typ.)
4. AUDIO INTERFACE (SPEAKER SPECIFICATION)
Speaker specification
Line input connection
3.5 mm stereo jack
Line input signal
1.0 Vrms
Line input impedance
22 kOhm
Maximum power output (Electric)
1 W@ < 15 % distortion
Signal to Noise Ratio
40 dB
Frequency response
100 Hz – 20 Khz
Distortion
< 5 % THD (@1kHz)
Vibration
There should be no audible vibration with volume at
100% and treble / bass at default.
Screen image
There should be no affect on the screen image
stability under any conditions.
Connector PC99 requirement Audio in
Lime Green pantone # 577C
Cable type / length
3.5mm stereo cable / 1.8m length
Audio DPMS
Speakers should be off when the rest of the monitor
is in power saving.
No any sympathetic or abnormal noise allowed under Volume OSD
≤
70%
5. Electrical Requirements
Horizontal Frequency
24 – 82 kHz
Vertical Refresh Rate
50 – 85 Hz.
Maximum Pixel Clock
135 MHz
Sync Polarity
Independent of sync polarity.
ViewSonic Corporation Confidential – Do Not Copy VP720-1_VP720b-1
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Summary of Contents for VP720-1
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