Apple Multiple Scan 20 Display

Apple · Multiple Scan

Multiple Scan 20 Display

Released March 1994

A 20-inch Trinitron CRT with a 19.1-inch viewable image, multiple signal modes and an ADB pass-through stand.

Size
19.1″
Resolution
–
PPI
–
Panel
CRT
Refresh
–
Brightness
–
HDR
–
USB-C power
–

Display

Screen size
19.1″
Panel
CRT (Original nominal 20-inch Trinitron CRT, 19.1-inch viewable image and 0.31 mm stripe pitch; no fixed native matrix. Later Revision B uses a different 0.26 mm tube and is not substituted here.)
Supported signal modes
Apple's support sheet lists 640 × 480 at 59.95, 66.7 or 75 Hz; 800 × 600 at 75 Hz; 832 × 624 at 75 Hz; 1024 × 768 at 74.93 or 75 Hz; 1152 × 870 at 75 Hz; and 1280 × 1024 at 75 Hz. Service Source gives horizontal scan range 29–82 kHz and vertical range 50–150 Hz. These are supported CRT signal modes, not a native pixel matrix or native refresh rate; modes depend on the computer and adaptor.
Screen coating
Bonded glass panel with multilayer antiglare and antistatic coating

Connections

Video inputs
DA-15
USB-C charging
None
Other connections
Macintosh 15-pin DA-15 analogue RGB cable; VGA computers need a video adaptor. Two front ADB device ports and rear ADB pass-through port.

Design

Stand adjusts
Tilt, swivel
Weight with stand
30 kg
Tilt
−5° to +15°
Swivel
At least ±45°
Size with stand
Apple support publishes 18.7 × 18.7 × 19.7 inches (height × width × depth); Service Source separately lists 474 × 474 × 501.5 mm
Weight detail
Service Source gives monitor weight 30 kg (66 lb), distinct from the 36 kg boxed shipping weight. The later 1995 Apple Facts sheet for the 0.26 mm tube instead gives 29.7 kg.
Controls
Front-panel power, reset, brightness and contrast; image position, size, rotation, convergence and colour-temperature controls. Automatic power-on degauss.

Power and support

Power use
Maximum 165 W; less than 15 W in Energy Saver mode
Power supply
Service Source specifies 90–132 or 198–264 V AC, 47–63 Hz; support archive instead gives the upper band as 198–260 V. These are mains ratings.
Software
System 7.1 or later; older Macs may need additional adaptors. Apple support identifies March 1994 introduction, and InfoWorld's 14 March 1994 shipping section reports rollout that week; month precision retained. Service Source distinguishes original 0.31 mm hardware from later Revision B 0.26 mm hardware with different deflection board, controller and power supply. No Revision B retail date is inferred. Brightness and contrast ratio are unpublished.
Certifications
US EPA Energy Star power conservation

Pros and cons

Pros

  • Large 19.1-inch viewable screen
  • Tilt-and-swivel stand with front ADB connections
  • Antiglare and antistatic coated tube

Cons

  • Heavy 30 kg CRT enclosure
  • Analogue Macintosh connection needs an adaptor for VGA computers

Closest rivals

Model
SizeResolutionPPIPanelRefreshBrightnessHDRUSB-C powerReleased
19.8″––CRT––––2001
19″––CRT––––May 1997
19″––CRT––––1997

Sources

  1. support.apple.com/en-bw/112390
  2. macdat.net/files/pdf/apple/servicesource/display_multiplescan-20.pdf
  3. ardent-tool.com/docs/scans/InfoWorld_1994_03_IBM_introduces_entry-level_Pentium…
  4. vintageapple.org/applefacts/pdf/Apple_Facts_9510_10.95_October_1995.pdf
  5. everymac.com/monitors/apple/multiple_scan/specs/multiple_scan_20.html

Photo: Apple Computer photograph credited by EveryMac's exact-model page; original and Revision B share external appearance according to Service Source, and the surviving photo does not identify its internal revision

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