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 < 23 W (max)
POWER SAVING < 2W ,OFF < 1W
Recovery Time On Mode = N/A, Active Off < 3 sec
4 ELECTRICAL REQUIREMENT
Horizontal / Vertical Frequency
Horizontal Frequency 30 – 62 KHZ
Vertical Refresh Rate 50 – 85 HZ.
Maximum Pixel Clock 80 MHz
Sync Polarity Independent of sync polarity.
Timing Table
Item Timing Analog
1 640 x 350 @ 70Hz, 31.5kHz
Yes
2 640 x 400 @ 70Hz
Yes
3 640 x 480 @ 50Hz
Yes
4 640 x 480 @ 60Hz, 31.5kHz
Yes
5 640 x 480 @ 67Hz, 35.0kHz
Yes
6 640 x 480 @ 72Hz, 37.9kHz
Yes
7 640 x 480 @ 75Hz, 37.5kHz
Yes
8 640 x 480 @ 85Hz, 43.27kHz
Yes
9 720 x 400 @ 70Hz, 31.5kHz
Yes
10 800 x 600 @ 56Hz, 35.1kHz
Yes
11 800 x 600 @ 60Hz, 37.9kHz
Yes
12 800 x 600 @ 72Hz, 48.1kHz
Yes
13 800 x 600 @ 75Hz, 46.9kHz
Yes
14 800 x 600 @ 85Hz, 53.7kHz
Yes
15 832 x 624 @ 75Hz, 49.7kHz
Yes
16 1024 x 768 @ 60Hz, 48.4kHz
Yes
17 1024 x 768 @ 70Hz, 56.5kHz
Yes
18 1024 x 768 @ 72Hz, 58.1kHz
Yes
19 1024 x 768 @ 75Hz, 60.0kHz
Yes
*1. Tolerance ≧ ± 2kHz.
*2. Any timing not in the list, it should display as normal or show on “OUT OF RANGE” OSD message
without blanking.
*3. The image quality of 85Hz mode might be worse than 75Hz.
AUDIO INTERFACE (SPEAKER SPECIFICATION) (For VA503m only)
Line input connection 3.5 mm stereo jack
Line input signal 1.0Vrms
Line input impedance >10 kOhm
Maximum power output (Electric) 1 W @ < 8% distortion
Signal to Noise Ratio 50 dB
Frequency response 500 Hz – 20 Khz
Distortion < 8 % THD (@1kHz)
ViewSonic Corporation VA503b-1_ VA503m-1
6
Confidential - Do Not Copy