ViewSonic VG1921wm-2, Service Manual

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ViewSonic Corporation
Confidential - Do Not Copy
VG1921wm-2
5
Video Impedance 75 Ohms (Analog)
Maximum PC Video Signal 950 mV with no damage to monitor
Maximum Mac Video Signal 1250 mV with no damage to monitor
DDC 1/2B Compliant with Revision 1.3
Sync Compatibility Separate Sync
Video Compatibility
Shall be compatible with all PC type computers,
Macintosh computers, and after market video cards
Resolution Compatibility
640 x 350, 640 x 480, 720 x 400 (640 x 400*), 800 x
600, 832 x 624, 1024 x 768, 1152 x 864, 1280 x 960,
1280 x 1024,1440x900
Exclusions Not compatible with interlaced video
4 POWER SUPPLY
Internal Power Supply Part Number:RLPR-025
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 4 A TYPICAL AT 14.2 VDC
Leakage Current 3.5MA (MAX) AT 254VAC / 60HZ
Efficiency 80% TYPICAL AT 115VAC FULL LOAD
Fuse INTERNAL AND NOT USER REPLACEABLE
Power Dissipation 32 WATTS (TYP)
Max Input AC Current 0.8 ARMS @ 90VAC, 0.4 ARMS @265VAC
Inrush Current (Cold Start) 40 A @ 120VAC, 60 A (MAX) @ 220VAC
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 ANSI/IEEE
C62.41-1980 2000V 200 AMPERE RING WAVE
TRANSIENT TEST WITH NO DAMAGE
Power Supply Line Surge Immunity
Shall be able to withstand 1.5 times nominal line
voltage for one cycle 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
be 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 <42 W (max)
Off Mode< 1W
Recovery Time On Mode = N/A, Active Off < 3 sec