ViewSonic VA1912W Service Manual - Page 8

Power Supply - 8ms

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2.4 POWER SUPPLY Power Supply (Adapter) 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 PSE Type Power Cable Power Saving Operation(Method) Power Consumption Recovery Time ViewSonic Corporation Part Number: 27-D003247 90 to 264 VAC 47 to 63 Hertz OUTPUT CAN BE SHORTED WITHOUT DAMAGE FUSE 3.15A TYPICAL AT 250 VAC 75 MA (MAX) AT 240VAC / 50HZ 80 % TYPICAL AT 100VAC @60HZ INTERNAL AND NOT USER REPLACEABLE 36 WATTS 1.6 ARMS @ nominal RANGE 80 A @ 240VAC , 50HZ 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 EN61000-4-4 ±2KV TRANSIENT TEST WITH NO DAMAGE Shall be able to withstand ±2KV (L-L) and ±2.3KV (L-PE) 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. Color = Black Separate 2-prong NEMA 1-15P type plug. Length = 1.8m. Connects to display. Color = Black VESA DPMS Signaling ON Mode < 36 W (max) / 32 W (typ) ACTIVE OFF < 1 W ON Mode = N/A, ACTIVE OFF < 5 sec 5 Confidential - Do Not Copy VA1912w-2_VA1912wb-2

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ViewSonic Corporation
2.4 POWER SUPPLY
Power Supply (Adapter)
Part Number:
27-D003247
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
FUSE 3.15
A TYPICAL AT
250
VAC
Leakage Current
75
MA (MAX) AT 240VAC / 50HZ
Efficiency
80
% TYPICAL AT 100VAC @60HZ
Fuse
INTERNAL AND NOT USER REPLACEABLE
Power Dissipation
36
WATTS
Max Input AC Current
1.6
ARMS @
nominal
RANGE
Inrush Current (Cold Start)
80
A @ 240VAC , 50HZ
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 EN61000-4-4
±2KV TRANSIENT TEST WITH NO DAMAGE
Power Supply Line Surge Immunity
Shall be able to withstand ±2KV (L-L) and ±2.3KV
(L-PE) 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 compliance with ISO 7779 (DIN EN27779:1991)
Noise measurements of machines acoustics. Power
Switch noise shall not be considered
US Type Power Cable
Separate 3-prong NEMA 5-15P type plug.
Length =
1.8m. Connects to display.
Color = Black
European Type Power Cable
Schuko CEE7-7 type plug.
Length = 1.8m, Connects to display.
Color = Black
CCC Type Power Cable
Separate 3-prong type plug.
Length = 1.8m. Connects to display.
Color = Black
PSE Type Power Cable
Separate 2-prong NEMA 1-15P type plug.
Length =
1.8m. Connects to display.
Color = Black
Power Saving Operation(Method)
VESA DPMS Signaling
Power Consumption
ON Mode <
36
W (max) /
32
W (typ)
ACTIVE OFF <
1
W
Recovery Time
ON Mode = N/A, ACTIVE OFF < 5 sec
5
Confidential - Do Not Copy
VA1912w-
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_VA1912wb-
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