ViewSonic Corporation
Confidential - Do Not Copy
VA903b-1_ VA903m-1
7
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 define
to be in compliance with ISO 7779 (DIN
EN27779:1991) Noise measurements of machines
acoustics. Power Switch noise shall not be considered
US Type Power Cable
Length = 1.8m. Connects to AC/DC Power Color =
Black
Power Saving Operation (Method)
VESA DPMS Signaling
Power Consumption
ON Mode < 36 W (max)
pOWER sAVING < 2W ,OFF < 1W
Recovery Time
On Mode = N/A, Active Off < 3 sec
ELECTRICAL REQUIREMENTS
Horizontal / Vertical Frequency
Horizontal Frequency
30 – 82 kHz
Vertical Refresh Rate
50 – 85 Hz.
Maximum Pixel Clock
135 MHz
Sync Polarity
Independent of sync polarity.
Timing Table
Item Timing
Analog
1
640 x 350 @ 70Hz, 31.5kHz
Yes
2
640 x 480 @ 50Hz, 24.68KHZ
Yes
3
640 x 480 @ 60Hz, 31.5kHz
Yes
4
MAC 640 x 480 @ 67Hz, 35.0kHz
Yes
5
640 x 480 @ 72Hz, 37.9kHz
Yes
6
640 x 480 @ 75Hz, 37.5kHz
Yes
7
640 x 480 @ 85Hz, 43.27kHz
Yes
8
720 x 400 @ 70Hz, 31.5kHz
Yes
9
800 x 600 @ 56Hz, 35.1kHz
Yes
10 800 x 600 @ 60Hz, 37.9kHz
Yes
11 800 x 600 @ 72Hz, 48.1kHz
Yes
Summary of Contents for VA903b-3 VS11372
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