Apple Multiple Scan 17 Service Source
The Apple Multiple Scan 17 Display volume of Apple's Service Source is a 101-page service manual. The PDF was distilled on 21 December 1995.
Specifications as printed
| Item | Value |
|---|---|
| Picture tube | 17 in diagonal Trinitron, 16.1 in viewable; bonded glass panel with antiglare/antistatic multilayer coating; 0.26 mm stripe pitch |
| Screen resolution | 640 x 480, 800 x 600, 832 x 624, 1024 x 768 |
| Scan rates | vertical refresh 50-150 Hz; horizontal 29-82 kHz; Macintosh, XGA, VGA, SVGA and VESA compatible |
| Video input | RGB analogue RS-343A, 0.714 V p-p positive-going; sync on green 0.286 V ±10%; separate or composite sync 1-5 V p-p, either polarity |
| Mains | universal, 90-132 and 198-260 VAC self-configuring, 47-63 Hz |
| Power | 150 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; 50.0 lb (22.5 kg) |
| I/O ports | two ADB ports plus one ADB pass-through; microphone input and pass-through; headphone/speaker input and pass-through |
Being a Trinitron, this tube has damper wires: one or two faint horizontal lines across the screen are a property of the aperture grille, not a fault.
The EEPROM, and why it matters before you swap a board
The Basics chapter opens with EEPROM Settings, and the Troubleshooting chapter carries a Display Setting Restoration procedure in three parts: connect the hardware, save the EEPROM information, and restore it. This display stores its geometry and convergence alignment in non-volatile memory on the microprocessor board. Save the EEPROM contents before replacing a board, or the replacement will need a full factory realignment that the field procedure does not cover.
Contents
- Basics - EEPROM Settings (pdf pp. 3-4)
- Specifications - Characteristics, Controls and Ports, Physical and Electrical, Environmental (pdf pp. 6-11)
- Troubleshooting - General, First Checklist, Display Setting Restoration (three parts), CRT, symptom charts for Raster, Power, Indicator Lights and Miscellaneous (pdf pp. 13-32)
- Take Apart - Monitor Stand, Monitor Stand Cables, Rear Cover, EMI Shield, CRT/Video Board, Video Cable, Serial I/O Board, AC Inlet, Microprocessor Board, Main Deflection Board, Control Panel Board (pdf pp. 34-77)
- Adjustments - Brightness and Contrast, Geometry, Convergence, Color Temperature, Factory Settings (pdf pp. 79-99)
- Exploded View (pdf pp. 100-101)
What this manual does not contain
No parts list, no schematic, no component values, no fuse rating. The high-voltage figure is not printed. Board-level repair is not described; every fault resolves to a board exchange plus an EEPROM restore.
Pages that cite this document
- 17" ColorSync Displays Service Source - Apple's later 17-inch Trinitron, which uses the same EEPROM approach.
- Apple Multiple Scan 20 Service Source
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 17 display.pdf