ViewSonic Corporation
Confidential - Do Not Copy
VX2245wm-1
7
4-1 GENERAL specification
Test Resolution & Frequency
1680x1050 @ 60Hz
Test Image Size
Full Size
Contrast and Brightness Controls
Factory Default:
Contrast = 70%, Brightness = 100%
4-2 VIDEO INTERFACE
Analog Input Connector
DB-15 (Analog), refer the appendix A
Digital Input Connector
DVI-D (Digital), refer the appendix B
Default Input Connector
Defaults to the first detected input
Video Cable Strain Relief
Equal to twice the weight of the monitor for five minutes
Video Cable Connector DB-15 Pin out
Compliant DDC 1/2B
Video Signals
1. Video RGB (Analog)
Separate, Composite, and Sync on Green
2. TMDS (Digital)
Video Impedance
75 Ohms (Analog), 100 Ohms (Digital)
Maximum PC Video Signal
950 mV with no damage to monitor
Maximum Mac Video Signal
1250 mV with no damage to monitor
Sync Signals
TTL
DDC 1/2B
Compliant with Revision 1.3
Sync Compatibility
Separate Sync, Composite Sync, SOG
Video Compatibility
Shall be compatible with all PC type computers, Macintosh
computers, and after market video cards
Resolution Compatibility
640 x 350*, 640 x 480, 720 x 400* (640 x 400*), 800 x 600, 832 x
624, 1024 x 768, 1152 x 864, 1152 x 870, 1280 x 720, 1280 x
960, 1280 x 1024 , 1400 x 1050 , 1440 x 900 , 1600 x 1200, 1680
x 1050
* The image vertical size might not be full screen.
But the image vertical position should be at the center.
Exclusions
Not compatible with interlaced video
POWER SUPPLY (LCD Head)
Internal Power Supply
27-D009542
Input Voltage Range
90 to 264 VAC
Input Frequency Range
47 to 63 Hertz
Short Circuit Protection
Output can be shorted without damage
Over Current Protection
5.0 A typical at 12.0 VDC
Leakage Current
3.5mA (Max) at 254VAC / 60Hz
Efficiency (at 115VAC Full Load)
Typical: 80%
Minimum: 75%
Fuse
Internal and not user replaceable
Power Output
50 Watts (typ)
Ripple and Noise
Ripple: <3%
Noise: <1%
Max Input AC Current
1.5 Arms @ 90VAC, 0.75 Arms @180VAC
Inrush Current (Cold Start)
50 A (max) @ 115VAC
90 A (max) @ 230VAC
Power Supply Cold Start
Shall start and function properly when under full load, with all
combinations of input voltage, input frequency, and operating
temperature.
Power Supply Transient Immunity
Shall be able to withstand an ANSI/IEEE C62.41-1980 6000V 200
ampere ring wave transient test with no damage.
Power Supply Line Surge Immunity
Shall be able to withstand 1.5 times nominal line voltage for one
cycle with no damage.
Power Supply Missing Cycle Immunity
Shall be able to function properly, without reset or visible screen
artifacts, when ½ cycle of AC power is randomly missing at
nominal input.
Power Supply Acoustics
The power supply shall not produce audible noise that would be
detectable by the user. Audible shall defined to be in
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