Apple Basic Color Monitor
| Apple Basic Color Monitor | |
|---|---|
.jpg) |
|
| Apple product photograph, Apple Facts, February 1993 | |
| Manufacturer | Apple Computer, Inc. |
| Type | 14-inch colour CRT monitor |
| Release date | February 1993 |
| Discontinued | October 1993 |
| Interface | 15-pin VGA-type connector; adapter cable to the Macintosh DB-15 port |
| Dimensions | Domestic: 328 × 368 × 385 mm (H × W × D) |
| Weight | 11.5 kg (25.3 lb) |
| Model | M1903 |
| Power | 100-125 V AC (domestic) or 220-240 V AC (international), 50-60 Hz, 70 W |
| Resolution | 640 × 480, 76 dpi, 60 Hz |
The Apple Basic Color Monitor is a 14-inch shadow-mask colour monitor that Apple sold from February to October 1993, the cheapest colour display in its range at the time.[1][2] Apple described it as offering the features of a standard 14-inch VGA display, able to connect directly to any Macintosh that supports VGA monitors, at 640 × 480 and 60 Hz on a tilt-and-swivel base.[2] Its model number is M1903. Apple serviced it only by exchanging the whole unit.[1]
Specifications
[edit | edit source]Apple's Service Source prints separate figures for the domestic and international versions.[3]
| Item | Domestic | International |
|---|---|---|
| Picture tube | 13 in viewable diagonal, 0.39 mm dot pitch | |
| Active display area | 9.45 × 7.09 in (240 × 180 mm) | |
| Scan rates | Vertical 60 Hz; horizontal 31.5 kHz | |
| Mains | 100-125 V AC | 220-240 V AC |
| Frequency and power | 50-60 Hz; 70 W | |
| Controls | Front: power, brightness, contrast. Rear: vertical and horizontal centring | Front: power, brightness, contrast, vertical and horizontal centring |
| Size | 13.1 × 14.7 × 15.4 in (328 × 368 × 385 mm) | 15.3 × 14.2 × 18.1 in (382 × 356 × 452 mm) |
| Weight | 25.3 lb (11.5 kg) | |
| Operating environment | 15-35 °C; 80% humidity maximum, non-condensing; up to 7,000 ft | |
Apple's online specification page gives a 14-inch tube with a 13-inch viewable image and a vertical rate of 59.94 Hz.[4]
Versions
[edit | edit source]Apple's 1996 service guide lists several versions, identified by the manufacturing part number (645-xxxx) on the label at the back, each with its own exchange part number.[1]
| Version | Label number | Exchange part |
|---|---|---|
| US/Pacific (Australia: X prefix) | 645-0031 | 661-0008 |
| US/Pacific (Australia: X prefix) | 645-0032 | 661-0009 |
| Europe | 645-0034 | Z661-0010 |
| Rev. B, US; platinum-coloured case | 645-0029 | 661-1670 |
| Basic Color display supporting both Macintosh and VGA | not given | 661-1040 |
Apple notes that the Rev. B unit (661-1670) is Macintosh-only and that customers needing VGA should be given 661-1040, which supports both. The parts list also carries an adapter cable from a 15-pin three-row (VGA-style) plug to the Macintosh DB-15 port, part 922-1104.[1]
Troubleshooting
[edit | edit source]Apple's symptom charts for this monitor contain only a few checks the user can make before the cure "Replace monitor":[5]
- No picture, with the power light on or off: check that the video cable is connected to the computer or video card.
- Picture off-centre: move the monitor away from fluorescent lights and other electrical equipment, then use the centring controls (at the rear on domestic units, at the front on international ones).
- Distorted picture: move the monitor, then adjust brightness and contrast.
- Picture too dark or too bright: adjust brightness and contrast.
- Jitter or flashing: move the monitor away from fluorescent lights and electrical equipment and check the ground cable connections.
Every other symptom in the charts (wrong size, rolling or breaking-up picture, a single line, colour tint, poor focus or convergence, burnt phosphor) goes straight to replacing the monitor.[5] The Service Source has no take-apart, adjustment or parts chapter, and no schematic or component values have been found, so there are no separate maintenance, troubleshooting or capacitor guides for this monitor.
The CRT inside holds a dangerous charge after switch-off; anyone opening the cabinet should follow the CRT Discharge Procedure first.
Documentation
[edit | edit source]- Apple Basic Color Monitor Service Source: Apple's 14-page Service Source (specifications and symptom charts).
- Apple Macintosh Displays and Video Cards Service Guide (1996), chapter 10: parts list and symptom/cure chart.[1]
Related pages
[edit | edit source]References
[edit | edit source]- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 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 10, Apple Basic Color Monitor: parts list p. 168, symptom/cure chart p. 169 (PDF pp. 186-188).
- ↑ 2.0 2.1 Apple Computer, Apple Facts 2.93, February 1993, "Key Features of the Apple Display Family", p. 74, where it is marked as new. archive.org item apple-facts-9302-2.93-february-1993.
- ↑ 3.0 3.1 Apple Computer, Apple Basic Color Monitor (Service Source), 14 pp., hosted as File:Basic color monitor.pdf. Specifications, pp. 1-5 (PDF pp. 3-7).
- ↑ Apple Basic Color Monitor: Technical Specifications, Apple—link(accessed 2026-10-02)
- ↑ 5.0 5.1 Apple Basic Color Monitor Service Source, Troubleshooting, Symptom Charts, pp. 2-6 (PDF pp. 10-14).