Power Supply - ViewSonic VX1933W Service Manual

2.5 POWER SUPPLY

Internal Power Supply
Input Voltage Range
Input Frequency Range
Short Circuit Protection
Over Current Protection
Leakage Current
Efficiency (at 115VAC Full Load)
Fuse
Power Output
Ripple and Noise
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
Power Saving Operation(Method)
Power Consumption
Recovery Time
ViewSonic Corporation
ILPI-107
90 to 264 VAC
47 to 63 Hertz
Output can be shorted without safety issue
5.0A typical at 24VDC
( Protect when short circuit)
3.5MA (MAX) AT 264VAC / 60HZ
Typical: 80%
Minimum: 75%
Internal and not user replaceable
45 Watts (typ)
Ripple:<3%
Noise: <1%
1.5A (MAX)
80 A MAX./ 240V / 50HZ
AC
(COLD START AT 25 ,FULL LOAD)
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 ±1KV (L-L) and ±2KV (L-PE)
(Refer to EN55024:1998 / CISPR24.1997 / IEC1000-4-5: 1995 /
EN61000-4-5: 1995)
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.
VESA DPMS Signaling
Mode LED
On BLUE
ECO Mode Blue
Active off Amber
Off Off
On Mode = N/A, Active Off < 3 sec
10 CONFIDENTIAL – DO NOT COPY
Power
Consumption
45W(typ)
55W(max)
37W (Optimize)
30 W (Conserve)
<1 W
<0.5W
VX2433wm-1
VX2433wm-CN