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TITLE
Apple Multiple Scan 20 Display: Specifications
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Article ID:
Created:
Modified:
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14851
3/10/94
9/9/97
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TOPIC
DISCUSSION
Picture Tube
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20-inch diagonal Trinitron CRT Minimum viewable area: 292.6 mm x 388.4 mm (11.52-inch x 15.29-inch)
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Multiple scan
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Resolution range: 640x480 to 1280x1024
Screen
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0.31 millimeter (mm) pitch (Rev A)
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0.26 millimeter (mm) pitch (Rev B)
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Bonded glass panel with antiglare/antistatic multilayer coating
Input Signals
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Red, green, and blue signals; separate sync, composite sync, and composite video
Power Savings feature
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Conforms to the Energy Star program of the United States Environmental Protection Agency
User Controls
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Power-on switch
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Automatic degauss at power-up; manual degauss by turning power switch off, then on (capable of full degauss after monitor is turned off for 20 minutes or more)
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Control buttons: Reset, Control, Command, Brightness, Contrast
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Additional picture controls available using the Command button: horizontal and vertical shift, horizontal and vertical size, rotation, horizontal and vertical convergence, and color temperature
Active Video Image Area
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Adjusted at the factory for the following standard modes:
Mode Resolution Vertical Refresh Horizontal Scan
Rate (hertz) Rate (kilohertz)
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VGA 640x480 59.95 31.47
Macintosh 640x480 66.7 35.0
VESA 640x480 75.0 37.5
VESA 800x600 75.0 46.9
Macintosh 832x624 75.0 49.73
Macintosh 1024x768 74.93 60.24
VESA 1024x768 75.0 60.02
Macintosh 1152x870 75.0 68.7
VESA 1280x1024 75.0 79.98
Input Electrical Requirements
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Voltage: 90-132, 198-264 V
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Frequency: 47-63 Hz
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Power: 180 W maximum (Rev A), 165 W maximum (Rev B)
Weight
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Approximately 66 pounds (30 kilograms)
Dimensions
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Height: 474 mm +/- 5 mm
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Width: 474 mm +/- 5 mm
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Depth: 501.5 mm +/- 5mm
Tilt Swivel Base
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Tilt: -5 to +15 degrees
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Swivel Range: +/- 45 degrees minimum
Interfaces
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Apple Desktop Bus (ADB): one input port and two pass-thru output ports
Operating Environment
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Temperature
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Operating: 10 to 40 degrees C (50 to 104 degrees F)
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Storage: 0 to 60 degrees C (32 to 140 degrees F)
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Shipping: -40 to 60 degrees C (-40 to 140 degrees F)
Humidity (noncondensing)
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Operating: 10% to 80%
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Storage: 5% to 90%
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Shipping: 5% to 95%
Altitude (maximum)
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Operating: 10,000 ft. (3048 m)
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Shipping: 35,000 ft. (1067 m)
Safety
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Meets strict SWEDAC MPR-2 requirements for low-frequency (ELF and VLF) magnetic and electric emissions.
System Requirements
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Power Macintosh, Macintosh Centris, Macintosh Quadra, or any NuBus compatible Macintosh with a Macintosh Display Card 24AC.
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Macintosh II family, PowerBooks, Duo Dock(*) and MiniDock, Macintosh Performa, Macintosh LC, LC II, LC III, and Macintosh computers with 8*24, 8*24GC, 4*8 video cards installed work in the 640x480 video mode. Other modes are possible with additional adapters.
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System software version 7.1 or later
(*) The Duo Dock requires a video display adapter to change resolutions unless System 7.5 is installed.
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