Apple Multiple Scan 15 Service Source: Difference between revisions
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== What this manual does not contain == | == 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. | '''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. | ||
== Related Apple display volumes on this wiki == | |||
* [[Apple Multiple Scan 15 AV Service Source]] - the audio version, and the one to use if a 15-inch Apple multiple-scan display has to be opened, because this volume has no Take Apart chapter at all. | |||
* [[Apple Multiple Scan 14 Service Source]] - the 14-inch volume. It is also '''exchange-only''' (no Take Apart, no Exploded View), but its Specifications chapter prints '''full monitor timing tables''' - back porch, sync width, front porch, dot clock and line and frame periods for 640 x 480 at 60 and 66.67 Hz and 800 x 600 at 60 and 72 Hz - which are reproduced nowhere else on this wiki. Note that Apple prints a '''90-132 VAC''' supply for the Multiple Scan 14 and no 220-240 V figure, so that volume documents the domestic unit only. | |||
== Pages that cite this document == | == Pages that cite this document == | ||
Revision as of 07:57, 25 September 2026
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.
Related Apple display volumes on this wiki
- Apple Multiple Scan 15 AV Service Source - the audio version, and the one to use if a 15-inch Apple multiple-scan display has to be opened, because this volume has no Take Apart chapter at all.
- Apple Multiple Scan 14 Service Source - the 14-inch volume. It is also exchange-only (no Take Apart, no Exploded View), but its Specifications chapter prints full monitor timing tables - back porch, sync width, front porch, dot clock and line and frame periods for 640 x 480 at 60 and 66.67 Hz and 800 x 600 at 60 and 72 Hz - which are reproduced nowhere else on this wiki. Note that Apple prints a 90-132 VAC supply for the Multiple Scan 14 and no 220-240 V figure, so that volume documents the domestic unit only.
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