ViewSonic N4285p-4M Service Manual page 8

Electrical
4.
The following table defines the electrical specification of this product.
1 Power Input Voltage Range
2 Input Frequency Range
Input Current
3
4 Power Supply Inrush
5 Power Consumption:
6 Interference with RF and Video
7 Electromagnetic Compatibility
Power Supply Transient Immunity
8
(Supply Transients and Outage)
9 Surge Immunity Test
Power Supply Missing Cycle
10
Immunity
11 Power Supply Acoustics
12 Efficiency
13 Leakage Current
14 Power Saving (DPMS)
15 Recovery Time
16 Power Factor Correction
5. Firmware & OSD
The product firmware of VS11983-4M shall have a firmware version of V:P01 or later version.
Any changes/revisions afterward shall also be pre-approved by ViewSonic in written. For
VS11983-4M, its firmware shall have a built-in frequency table for NTSC/ATSC off-air
TV/CATV, Closed-Caption, and with MTS implementation.
All audio/video and other output adjustments shall be performed by using an On Screen Display
(OSD) via a Remote Control Unit (RCU) adjustment.The following tables list the OSD
functions supported by VS11983-4M.
OSD items
Video Picture Mode
Noise Reduction
Aspect ratio
Brightness
Contrast
Color
Tint
Sharpness
Color Temperature
Audio Balance
Bass
Treble
ViewSonic Corporation
ELECTRICAL SPECIFICATION
100-240VAC +/- 10% Wide Range
50 ± 3 Hz or 60 ± 3 Hz
3.0A @ 115VAC // 1.5A @ 230VAC
Max in < 80A (with fully loaded power supply) at 230Vac
Shall not result in permanent failure of power supply (including blown
fuse)
Normal: 180 W (Max: 200W ) // Stand by: ≦ 1.0W@115VAC
There shall be no visible interference between power supply, RF and video
signals. This applies to all available RF channels and video modes.
This product shall adhere to the compatibility and immunity specifications
in FCC.
Able to withstand an ANSI / IEEE C62.41 – 1980 2000V ring wave with
no damage.
Able to withstand 1.25X nominal Line Voltage for one cycle with no
damage.
Function properly without reset or visible screen artifact when 1/3 cycle of
AC Power is randomly missing.
The Power Supply shall not produce audible noise that would be detectable
by the user (Excluding Power Supply Fan).
"Audible" shall be defined in accordance with ISO 7779 (DIN
EN27779:1991).
Power Switch noise shall be Excluded.
>= 80% @ full load, nominal line
<0.5mA @ 240VAC
≦ 1.0 Watts@115VAC (only for VGA source)
< 10 sec.
Compliant with EN61000-3-2
Function Description
Picture effect selections on Normal, Movie, Vivid, and User
Noise reduce level setup
Selections the Image Size on Full, 4:3, Panorama, Zoom, No scale,
Normal
Adjust the Black levels
Adjust the White levels
Adjust the Color levels
Adjust the Tint levels
Adjust the Sharpness levels
Selections on Normal, Warm, user, Cold
Adjust the Speak output levels
Adjust the Low Frequency levels
Adjust the Hi Frequency levels
5
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N4285p-4M