Apple Macintosh Portrait Display vs Apple Multiple Scan 15 Display

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Macintosh Portrait Display compared with Multiple Scan 15 Display

	AppleMacintosh Portrait Display	AppleMultiple Scan 15 Display
Overview
Released
Released	1989	July 1994
Display
Screen size
Screen size	14.2″	13.3″
Panel
Panel	CRT (Nominal 15-inch monochrome CRT; Apple support gives 14.2-inch viewable diagonal and calls the tube shadow mask, while Service Source describes white P4 phosphor and a flat square screen. No fixed native pixel matrix.)	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.)
Colour depth
Colour depth	Service Source supports 1-, 2-, 4- or 8-bit analogue levels, with up to 256 greys at 8 bits per pixel; actual grey levels depend on video hardware. The original March 1989 launch notice lists lower video-card configurations and is not treated as a later display limit.	–
Supported signal modes
Supported signal modes	Supported 640 horizontal × 870 vertical analogue image at 75 Hz, 68.85 kHz horizontal scan and 80 dpi per maker documents; not a native fixed matrix. Owner guide specifies 57.2832 MHz dot clock, whereas Service Source gives 52 MHz. Factory active area 203.2 × 276.1 mm in owner guide (203 × 276 mm in Service Source).	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.
Screen coating
Screen coating	Maker's high-contrast, antiglare, flat square screen with white phosphor	Service Source describes a polished surface treatment; archived TIL 15754 describes antistatic and antiglare treatment for European models only
Connections
Video inputs
Video inputs	13W3	DA-15
USB-C charging
USB-C charging	None	None
Speakers
Speakers	No	Yes
Other connections
Other connections	Physical 13W3 video socket, identified by EveryMac's exact-model cable specification and Low End Mac; owner's guide shows three coaxial and ten signal positions with separate negative-going TTL sync. Compatible Macintosh video card or an appropriate cable is required; the socket itself is not DA-15 or VGA. Three ADB sockets allow one computer uplink and two remaining peripheral connections; no integrated audio.	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.
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
Weight with stand
Weight with stand	16 kg	14 kg
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.
Tilt
Tilt	Apple Universal Monitor Stand provides adjustable viewing angle but is optional, not included	–
Size without stand
Size without stand	Service Source gives 332 × 292 × 379 mm (height × width × depth); Apple support gives 13.1 × 11.5 × 14.9 inches. Optional stand dimensions not substituted.	–
Weight detail
Weight detail	Owner guide and Service Source publish 16 kg (35 lb); no conversion inferred	Apple Facts and Service Source publish 14 kg (31 lb); Apple Facts warns dimensions and weight may vary between the two worldwide designs
Controls
Controls	Rear power switch; right-side brightness with centre detent and contrast controls. Maker specifies 20-minute warm-up to meet all specifications.	Front-panel power, brightness and contrast; geometry shift and size, zoom, reset and recall controls. Automatic degauss on power-up.
Power and support
Power use
Power use	Maker 75 W maximum	Maximum 90 W; archived TIL specifies less than 30 W in Energy Saver mode
Power supply
Power supply	Domestic Service Source and owner guide specify self-configuring 90–270 V AC, 47–63 Hz; these are mains ratings, not display refresh rates	Service Source specifies 90–134 or 198–260 V AC, 47–63 Hz; these are mains ratings
Software
Software	Intended for compatible Macintosh video hardware. Service Source explicitly covers the domestic version; international Series B repair documentation is separate, so regional hardware is not silently combined. Apple support and contemporary TIL date introduction March 1989; April 1989 Mini'app'les launch coverage explicitly says Portrait Display M0404 available in May 1989. Actual first retail month remains unconfirmed, so year 1989 is retained. Optional stand, unpublished brightness and unknown direct successor are not inferred.	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.
Certifications
Certifications	–	MPR II and US EPA Energy Star compliance in Service Source