Apple Multiple Scan 15 Service Source
The Apple Multiple Scan 15 Display volume of Apple's Service Source is a 32-page service manual. The PDF was distilled on 9 November 1995.
Specifications as printed
| Item | Value |
|---|---|
| Picture tube | 15 in diagonal flat square shadow mask, 13.3 in viewable; 0.28 mm dot pitch |
| Screen resolution | 640 x 480, 800 x 600, 832 x 624; 1024 x 768 only on PCs through a Mac/PC adapter |
| Scan rates | vertical refresh 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 |
| Mains | 90-134 and 198-260 VAC, self-configuring, 47-63 Hz |
| Power | 90 W maximum |
| Size / weight | 16.5 in (424 mm) H x 15.8 in (405 mm) W x 17.6 in (452.3 mm) D; 31 lb (14 kg) |
The 0.714 V p-p video and 0.286 V sync-on-green levels are the most useful numbers in this manual: they are a direct go/no-go check on a suspect video cable or graphics card with an oscilloscope, and they apply to every Apple analogue RGB display of this era.
Apple also documents manual degauss: switch the monitor off and on again, noting that a full degauss is only possible after the monitor has been off for 20 minutes or more.
Contents
- 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
No Take Apart chapter and no Exploded View. No parts list, no schematic, no component values, no fuse data. Everything in the Adjustments chapter is done from the front panel; there is no internal alignment procedure.
Pages that cite this document
- Apple Multiple Scan 15 AV Service Source - the audio version, which does have a Take Apart chapter.
A CRT display holds a lethal charge on the anode after the mains is removed. Follow CRT Discharge Procedure before working inside one.
Download: Multiple scan 15 display.pdf