Apple Multiple Scan 15 Service Source
The Apple Multiple Scan 15 Display volume of Apple's Service Source is a 32-page service manual for the Multiple Scan 15, a 15-inch flat square colour display. The PDF was distilled on 9 November 1995.[1]
Specifications as printed
[edit | edit source]| Item | Value |
|---|---|
| Picture tube | 15 in diagonal flat square shadow mask, 13.3 in viewable; 0.28 mm dot pitch; polished surface |
| Screen resolution | 640 × 480, 800 × 600, 832 × 624; 1024 × 768 only on PCs through a Mac/PC adapter |
| Scan rates | Vertical 60-75 Hz; horizontal 31.77-56.5 kHz |
| Video input | RGB analogue, RS-343A, 0.714 V peak-to-peak, positive-going |
| Sync on green | RS-343A level, 0.286 V ±10%, negative-going during blanking |
| Separate or composite sync | 1 to 5 V peak-to-peak, either polarity |
| Controls | Front panel: power, brightness, contrast; command button for shift, size, zoom and reset |
| Mains | 90-134 and 198-260 VAC, self-configuring, 47-63 Hz |
| Power | 90 W maximum |
| Size and weight | 424 mm H × 405 mm W × 452.3 mm D; 14 kg (31 lb) |
| Operating environment | 10-40 °C; 20-95% humidity, non-condensing |
The video and sync levels give a check for a suspect video cable or graphics card with an oscilloscope. Degauss is automatic at power-on; to degauss by hand, switch the display off and on again. A full degauss needs the display to have been off for 20 minutes or more.[2] If the indicator light goes out before adjustments are finished, the display has taken a pause of more than 10 seconds as the end of the adjustment; this is normal.[3]
Contents
[edit | edit source]- Basics: Overview (PDF pp. 3-4)
- Specifications: Characteristics, Controls and Ports, Physical and Electrical, Environmental (PDF pp. 6-11)
- Troubleshooting: General; Symptom Charts for No Raster, Geometry, Video and Miscellaneous (PDF pp. 13-17)
- Adjustments: Brightness and Contrast, Geometry, Zooming, Factory Settings (PDF pp. 19-32)
What this manual does not contain
[edit | edit source]There is no Take Apart chapter and no exploded view. There is no parts list, schematic, component values or fuse data, and every adjustment is made from the front panel.[1]
Related pages
[edit | edit source]- Apple Multiple Scan 15 AV Service Source: the 15-inch AV display, whose manual does have Take Apart and internal adjustment chapters.
- Apple Multiple Scan 14 Service Source
- CRT Discharge Procedure: a CRT holds a charge on the anode after the mains is removed.
Download: Multiple scan 15 display.pdf
References
[edit | edit source]- ↑ 1.0 1.1 Apple Computer, Apple Multiple Scan 15 Display (Service Source), 32 pp., 1995. Hosted as File:Multiple scan 15 display.pdf.
- ↑ 2.0 2.1 Apple Multiple Scan 15 Display Service Source, Specifications: Characteristics pp. 1-3, Controls and Ports p. 4, Physical and Electrical p. 5, Environmental p. 6 (PDF pp. 6-11).
- ↑ Apple Multiple Scan 15 Display Service Source, Troubleshooting, Symptom Charts/Miscellaneous p. 5 (PDF p. 17).