Editing Apple 16" Color Display

{{Infobox computer peripheral
| name         = Macintosh 16" Color Display
| image        = [[File:Macintosh 16-inch Color Display (All About Apple museum).jpg|260px|frameless]]
| caption      = Macintosh 16" Color Display (All About Apple museum, CC BY-SA 3.0)
| manufacturer = Apple Computer, Inc.
| type         = 17-inch (16-inch viewable) colour CRT monitor
| release_date = October 1991
| discontinued = April 1994
| interface    = Analogue RGB (RS-343), DB-15 video cable; three ADB ports
| resolution   = 832 × 624, 70 dpi
| power        = 90-270 V AC, 47-63 Hz, 130 W maximum
| dimensions   = 400 × 405 × 405 mm (H × W × D)
| weight       = 23 kg (50 lb)
| model        = M1298
}}
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The '''Macintosh 16" Color Display''' is a Trinitron colour monitor with a 17-inch tube and a 16-inch viewable image, sold by Apple from October 1991 to April 1994.<ref name="sg">Apple Computer, ''Macintosh Displays and Video Cards'' service guide, September 1996, hosted as [[:File:Apple Macintosh Displays and Video Cards Service Guide (September 1996).pdf]]. Table 1, model numbers, p. 12 (PDF p. 30); Table 2, dates, p. 13 (PDF p. 31); chapter 15, Macintosh 16" Color Display, pp. 211-225 (PDF pp. 229-243).</ref> It runs at 832 × 624 and 75 Hz, and its tilt-and-swivel base carries three ADB ports and sound connections so that the keyboard, mouse and microphone can plug into the display.<ref name="ssspec">Apple Computer, ''Macintosh 16" Color Display'' (''Service Source''), hosted as [[:File:16 color display.pdf]]. Specifications, pp. 1-6 (PDF pp. 11-16).</ref> The model number on the back is M1298.<ref name="sg" />

== Specifications ==
{| class="wikitable styled-table" style="width:70%; text-align:left;"
|+'''Macintosh 16" Color Display specifications'''<ref name="ssspec" />
! Item !! Value
|-
| Picture tube || 17 in diagonal, 16 in viewable; Trinitron, 0.26 mm aperture-grille pitch; antiglare, anti-static coated glass
|-
| Resolution || 832 × 624, 70 dpi; up to 256 colours with the Macintosh Display Card 8•24 or 8•24 GC (Rev. B)
|-
| Scan rates || Vertical 75 Hz; horizontal 50 kHz
|-
| Active display area || 11.8 × 8.86 in (300 × 225 mm)
|-
| Input || Analogue red, green and blue, RS-343
|-
| Controls || Power switch, brightness and contrast on the front; automatic degauss at power-on
|-
| Stand and ports || Tilt-and-swivel base with three ADB ports (two at the front, one at the rear), sound in and sound out to the computer at the rear, microphone input and speaker/headphone output at the front
|-
| Power supply || Universal, 90-270 V AC self-configuring, 47-63 Hz, 130 W maximum
|-
| Size and weight || 15.7 in (400 mm) high, 16 in (405 mm) wide, 16 in (405 mm) deep; 50 lb (23 kg)
|-
| Operating environment || 10-35 °C; 95% humidity maximum, non-condensing
|}

Apple's product guide of 1993 and its online specification page give 47 lb and a depth of 17.6 in, measured with the base.<ref name="af93">Apple Computer, ''Apple Facts'' 2.93, February 1993, "Key Features of the Apple Display Family", p. 74. archive.org item [https://archive.org/details/apple-facts-9302-2.93-february-1993 apple-facts-9302-2.93-february-1993].</ref><ref name="sp422">{{cite web |url=https://support.apple.com/kb/SP422 |title=Macintosh 16-inch Color Display |publisher=Apple |access-date=2026-10-02}}</ref>

The 832 × 624 mode needs video that supports it; Apple's 1993 guide mentions the 16-inch display among the large displays supported by the PowerBook Duo MiniDock, and lists it with the 12-inch and 14-inch displays for the external video of the PowerBook 160 and 165c.<ref name="af93" />

== Hardware ==
The display has a main board, a CRT/video board on the tube neck, a separate focus control board carrying the FOCUS and H.STAT controls, a contrast/brightness board, an AC inlet assembly and a base board for the ADB and sound connectors.<ref name="ssev">''Macintosh 16" Color Display'' Service Source, Exploded View (PDF p. 136); Adjustments, Focus and Convergence, pp. 14-16 (PDF pp. 100-102).</ref>

{| class="wikitable styled-table" style="width:100%; text-align:left;"
|+'''Service part numbers (Service Source exploded view)'''<ref name="ssev" />
! Part !! Apple number
|-
| Main board || 661-1634 (Rev. A) or 661-1671 (Rev. B)
|-
| CRT/video board || 661-1635
|-
| CRT assembly || 076-0563
|-
| Focus control || 982-0139
|-
| Contrast/brightness assembly || 982-0127
|-
| AC inlet assembly || 076-0077
|-
| Fuse || 922-0516
|-
| Base PC assembly || 981-0029
|-
| Video cable || 590-0734
|}

The two main board revisions are replaced like for like: a board with vendor part number A-1335-028 printed near connector D3 is the original (661-1634); otherwise it is Rev. B (661-1671). A replacement CRT/video board must have switch SW1 set as Apple shows, towards the neck of the tube, or the colours cannot be set correctly and green is oversaturated.<ref name="ssrev">''Macintosh 16" Color Display'' Service Source, Take Apart, CRT/Video Board p. 23 and Main Board p. 40 (PDF pp. 51, 68); Troubleshooting, Video p. 7 (PDF p. 24).</ref>

== Known faults and normal behaviour ==
Apple's service manual opens with a chapter on environmental distortion: large monitors bend near metal furniture and jitter near fluorescent lights and appliances, and Apple says to move or turn the display before adjusting it or swapping modules.<ref name="ssbas">''Macintosh 16" Color Display'' Service Source, Basics, Monitor Distortion, pp. 1-7 (PDF pp. 3-9).</ref> Two thin horizontal lines, a quarter to a third of the way from the top and bottom, are the support wires of the Trinitron aperture grille and are not a fault.<ref name="ssts">''Macintosh 16" Color Display'' Service Source, Troubleshooting, Symptom Charts, pp. 2-10 (PDF pp. 19-27).</ref> A green vertical line at the left of the screen and an overall green cast are listed against the setting of SW1.<ref name="ssts" />

No component-level repair reports or capacitor list for this display have been found, and Apple's documents give no component values.

== Maintenance and repair ==
* [[Apple 16" Color Display General Maintenance]]: geometry set-up, focus, convergence, cutoff and white balance (24 foot-lamberts).
* [[Apple 16" Color Display Troubleshooting Guide]]: Apple's symptom charts and the fuse.

The CRT keeps a charge after switch-off; follow the [[CRT Discharge Procedure]] before working inside.

== Documentation ==
* [[Macintosh 16 Color Display Service Source]]: Apple's 136-page Service Source.
* [[Apple Macintosh Displays and Video Cards Service Guide (1996)]], chapter 15: board drawings, parts list and adjustment fold-out.<ref name="sg" />

== Gallery ==
<gallery mode="packed" heights="200">
File:Macintosh 16-inch Color Display with Quadra 840AV (Gona.eu).jpg|With a Macintosh Quadra 840AV and AppleDesign Powered Speakers (photo: Gona.eu, CC BY-SA 3.0)
File:Macintosh 16-inch Color Display high-voltage components (Service Source).png|High-voltage parts and focus control with the cover off (Apple Service Source)
File:Macintosh 16-inch Color Display exploded view (Service Source).png|Exploded view with part numbers (Apple Service Source)
</gallery>

== Related pages ==
* [[Apple 21" Color Display]]
* [[Apple Color High-Resolution RGB Monitor]]
* [[CRT Discharge Procedure]]

== References ==
<references />

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[[Category:Apple Vintage Accessories]]