Apple Multiple Scan 720 Display Service Source
The Apple Multiple Scan 720 Display volume of Apple's Service Source is a 109-page service manual. The PDF was distilled on 24 September 1997, making it one of the last CRT display volumes Apple produced.
Specifications as printed
| Item | Value |
|---|---|
| Picture tube | 17 in diagonal flat square CRT, 16.0 in diagonal viewable; 0.28 mm dot pitch |
| Screen resolution | from 640 x 480 at 60 Hz (VGA) upwards |
| Scan rates | vertical refresh 48-160 Hz; horizontal 30-70 kHz |
| Connector | 15-pin miniature D-type |
| Mains | 100-120 VAC; 220-240 VAC, 50-60 Hz (two ranges, not a single universal supply) |
| Power | 120 W maximum |
| Size / weight | 17.0 in (431 mm) H x 16.2 in (412 mm) W x 16.9 in (428.5 mm) D; 37.5 lb (17 kg) |
Contents
- Hot Issues (pdf pp. 2-6) - Apple's late-added chapter of field problems, which in this volume precedes Basics.
- Basics - Overview (pdf pp. 8-11)
- Specifications - Characteristics, Controls and Ports, Physical and Electrical, Environmental (pdf pp. 13-26)
- Troubleshooting - General, First Checklist, symptom charts for No Raster, Video and Geometry (pdf pp. 28-38)
- Take Apart - Safety Guidelines, List of Tools, Tilt-Swivel Monitor Stand, Rear Housing, EMI Shield, Main Deflection Board and CRT/Video Board Module, Video Cable, Front Bezel (pdf pp. 40-76)
- Adjustments - Introduction to the On-Screen Display, Non-User Controls (pdf pp. 78-107)
- Exploded View (pdf pp. 108-109)
All alignment on this display is done through the on-screen display, including the non-user controls; there are no internal preset pots to reach for. That changes the shape of a geometry repair completely from the earlier Apple monitors.
Note also that the main deflection board and CRT/video board are replaced as one module - they are not separately serviceable here.
What this manual does not contain
No parts list, no schematic, no component values, no fuse rating, no high-voltage figure.
Pages that cite this document
- 20" ColorSync Displays Service Source
- Apple Multiple Scan 1705 Service Source - the other late Apple 17-inch.
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 720 display.pdf