ViewSonic VP191b-1 Service Manual page 7

2-3 POWER SUPPLY
Internal Power Supply
Input Voltage Range
Input Frequency Range
Short Circuit Protection
Over Current Protection
Leakage Current
EFFICIENCY
Fuse
Power Dissipation
Max Input AC Current
INRUSH CURRENT (COLD START)
Power Supply Cold Start
Power Supply Transient Immunity
Power Supply Line Surge Immunity
Power Supply Missing Cycle Immunity
Power Supply Acoustics
US Type Power Cable
European Type Power Cable
CCC Type Power Cable(Color, Black)
PSE Type Power Cable(Color, Black)
Power Saving Operation(Method)
Power Consumption
Recovery Time
2-4 ELECTRICAL REQUIREMENT
Horizontal / Vertical Frequency
Horizontal Frequency
Vertical Refresh Rate
Maximum Pixel Clock
Sync Polarity
ViewSonic Corporation
Primary : LSE0204A1250
nd
2 source: Tiger power TOF 5001
90 TO 264 VAC
47.5 TO 63 HERTZ
Output can be shorted without damage
7.0 A typical at 12.0 VDC
3.5mA (Max) at 254VAC / 60Hz
80 % typical at 115VAC Full Load
Internal and not user replaceable
50 Watts (typ)
1.5 Arms @ 90VAC, 0.75 Arms @180VAC
20 A @ 115VAC, 30 A(max) @230VAC
Shall start and function properly when under full load,
with all combinations of input voltage, input frequency,
and operating temperature
Shall be able to withstand an ANSI/IEEE C62.41-1980
6000V 200 ampere ring wave transient test with no
damage
Shall be able to withstand 1.5 times nominal line voltage
for one cycle with no damage
Shall be able to function properly, without reset or visible
screen artifacts, when ½ cycle of AC power is randomly
missing at nominal input
The power supply shall not produce audible noise that
would be detectable by the user. Audible shall defined to
be in compliance with ISO 7779 (DIN EN27779:1991)
Noise measurements of machines acoustics. Power
Switch noise shall not be considered
Separate 3-prong NEMA 5-15P type plug. Length =
1.8m. Connects to display.
Color = Black
Schuko CEE7-7 type plug.
Length = 1.8m, Connects to display.
Color = Black
Separate 3-prong type plug.
Length = 1.8m. Connects to display.
Separate 2-prong NEMA 1-15P type plug. Length =
1.8m. Connects to display.
VESA DPMS Signaling
On Mode < 50 W (max) / 40 W (typ)
Active Off < 2W
On Mode = N/A, Active Off < 3 sec
24 – 82 KHZ
50 – 85* HZ.
*1. FOR RESOLUTION 640X480, 800X600 AND
1024X768, THE VERTICAL REFRESH RATE UP
TO 85HZ; FOR THE REST RESOLUTIONS, THE
VERTICAL REFRESH RATE UP TO 75HZ.
*2. ALL THE 85HZ MODE PICTURE QUALITY
MIGHT BE WORSE THAN ¡ Ø 7 5HZ MODE.
135 MHz
Independent of sync polarity.
Confidential - Do Not Copy
4
VP191b/s