Apple Multiple Scan 15 Display vs Apple Multiple Scan 20 Display

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Multiple Scan 15 Display compared with Multiple Scan 20 Display

	AppleMultiple Scan 15 Display	AppleMultiple Scan 20 Display
Overview
Released
Released	July 1994	March 1994
Display
Screen size
Screen size	13.3″	19.1″
Panel
Panel	CRT (Nominal 15-inch flat-square shadow-mask CRT with 13.3-inch viewable image and 0.28 mm dot pitch; no fixed native pixel matrix. Apple Facts notes two designs sold worldwide.)	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
Supported signal modes	Apple's archived support sheet lists 640 × 480 at 60 or 66.7 Hz, 800 × 600 at 60 or 72 Hz, 832 × 624 at 75 Hz and 1024 × 768 at 70 Hz. Service Source restricts 1024 × 768 to PC-compatible computers using a Mac/PC adaptor; Apple Facts October 1995 instead lists that Windows mode at 60 Hz. Supported modes depend on computer and regional design; these are CRT signal modes, not a native matrix or native refresh rate.	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
Screen coating	Service Source describes a polished surface treatment; archived TIL 15754 describes antistatic and antiglare treatment for European models only	Bonded glass panel with multilayer antiglare and antistatic coating
Connections
Video inputs
Video inputs	DA-15	DA-15
USB-C charging
USB-C charging	None	None
Speakers
Speakers	Yes	–
Other connections
Other connections	Captive Macintosh 15-pin DA-15 analogue RGB video connector; a Mac/PC adaptor is needed for VGA computers. The archived TIL pinout identifies the Macintosh connector, rather than a VGA DE-15 socket.	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.
Audio out
Audio out	One audio input and one headphone/speaker pass-through port in Service Source; archived TIL describes a front-panel headphone jack	–
Speaker detail
Speaker detail	Stereo speakers and headphone jack confirmed by Apple Facts October 1995 and archived TIL 15754; EveryMac's no-audio entry conflicts with those maker sources	–
Design
Stand adjusts
Stand adjusts	Tilt, swivel	Tilt, swivel
Weight with stand
Weight with stand	14 kg	30 kg
Tilt
Tilt	–	−5° to +15°
Swivel
Swivel	–	At least ±45°
Size with stand
Size with stand	Apple's current archive lists 16.7 × 15.9 × 17.8 inches (height × width × depth). Apple Facts October 1995 also publishes 42.4 × 40.5 × 45.2 cm and warns that two worldwide designs have different dimensions and weight. Archived TIL 15754 instead gives 375 × 365 × 380 mm including base; the difference is retained.	Apple support publishes 18.7 × 18.7 × 19.7 inches (height × width × depth); Service Source separately lists 474 × 474 × 501.5 mm
Weight detail
Weight detail	Apple Facts and Service Source publish 14 kg (31 lb); Apple Facts warns dimensions and weight may vary between the two worldwide designs	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
Controls	Front-panel power, brightness and contrast; geometry shift and size, zoom, reset and recall controls. Automatic degauss on power-up.	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
Power use	Maximum 90 W; archived TIL specifies less than 30 W in Energy Saver mode	Maximum 165 W; less than 15 W in Energy Saver mode
Power supply
Power supply	Service Source specifies 90–134 or 198–260 V AC, 47–63 Hz; these are mains ratings	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
Software	System 7.1 or later. Some older Macintosh models require an adaptor for modes beyond 640 × 480. Apple lists introduction as July 1994; TidBITS reported shipping by 25 July 1994, so month precision is retained. Brightness and contrast ratio are unpublished.	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
Certifications	MPR II and US EPA Energy Star compliance in Service Source	US EPA Energy Star power conservation