Apple Multiple Scan 14 Service Source
The Apple Multiple Scan 14 Display volume of Apple's Service Source is a 34-page service manual for the Multiple Scan 14, a 14-inch colour display with a built-in amplifier and stereo speakers. The PDF was distilled on 21 December 1995.[1]
Specifications as printed
[edit | edit source]| Item | Value |
|---|---|
| Picture tube | 14 in diagonal spherical shadow-mask CRT, 12.4 in viewable; trio gun; aluminised P22-derivative phosphor; 0.28 mm dot pitch; polished surface |
| Screen resolution | 640 × 480 at 60 Hz (VGA); 640 × 480 at 67.67 Hz (Macintosh); 800 × 600 at 60 Hz (SVGA); 832 × 624 at 75 Hz (Macintosh) |
| Scan rates | Vertical 60-72 Hz; horizontal 31.5-48 kHz |
| Connector | 15-pin miniature D-type |
| Controls | Front: power, brightness, contrast. Behind the door: horizontal and vertical shift and size. Automatic degauss at power-on |
| Mains | 90-132 VAC, 47-63 Hz |
| Power | 80 W maximum |
| Size and weight | 378 mm H × 365 mm W × 380 mm D; 13 kg (25 lb) |
| Audio ports | Headphone/speaker: one input and one pass-through output |
| Operating environment | 10-40 °C; 20-95% humidity, non-condensing |
Apple prints only a 90-132 VAC supply for this display. The Specifications chapter also gives full monitor timings (porches, sync widths, dot clock, line and frame periods) for 640 × 480 at 60 and 66.67 Hz, 800 × 600 at 60 and 72 Hz, and 832 × 624 at 75 Hz (pp. 3-5).[2]
The Basics chapter documents a known issue: on some displays the picture shifts right at 832 × 624 and cannot be centred, and model M3935LL/A does not support 832 × 624 at all. In November 1995 Apple started an upgrade programme to a Revision B display; the chapter has Apple's table of which computers qualify and a Monitors control panel test for the rest.[3]
Contents
[edit | edit source]- Basics: Overview; Repair Issues: 832x624 Resolution (PDF pp. 3-10)
- Specifications: Characteristics, Controls and Ports, Physical and Electrical, Environmental (PDF pp. 12-20)
- Troubleshooting: General; Symptom Charts for No Raster, Geometry and Video (PDF pp. 22-26)
- Adjustments: Brightness and Contrast; Geometry (PDF pp. 28-34)
What this manual does not contain
[edit | edit source]There is no Take Apart chapter and no exploded view: the symptom charts end at "Return monitor to Apple". There is no parts list, schematic, component values or fuse information, and the Adjustments chapter covers only the user controls behind the front door.[1]
Related pages
[edit | edit source]- Apple Multiple Scan 15 Service Source
- Apple Multiple Scan 17 Service Source
- CRT Discharge Procedure: a CRT holds a charge on the anode after the mains is removed.
Download: Multiple scan 14 display.pdf
References
[edit | edit source]- ↑ 1.0 1.1 Apple Computer, Apple Multiple Scan 14 Display (Service Source), 34 pp., 1995. Hosted as File:Multiple scan 14 display.pdf.
- ↑ 2.0 2.1 Apple Multiple Scan 14 Display Service Source, Specifications, Characteristics pp. 1-6, Controls and Ports p. 7, Physical and Electrical p. 8, Environmental p. 9 (PDF pp. 12-20).
- ↑ Apple Multiple Scan 14 Display Service Source, Basics, "Repair Issues: 832x624 Resolution", pp. 3-8 (PDF pp. 5-10).