Apple AudioVision 14 Display Service Source

The Apple AudioVision 14 Display volume of Apple's Service Source is a 121-page service manual for the AudioVision 14 Display, Apple's 14-inch Trinitron monitor with built-in stereo speakers, a microphone and front-panel sound controls. The PDF was produced in FrameMaker and distilled on 15 December 1995.

Specifications

AudioVision 14 Display specifications

Item	Value
Picture tube	14 in diagonal, 13 in viewable; Trinitron CRT, 0.26 mm aperture-grille pitch
Resolution	640 × 480
Scan rates	horizontal 35.0 kHz; vertical 66.7 Hz
Active video area	9.3 × 6.9 in (235 × 176 mm)
Video input	RGB, 0.714 V peak to peak, white positive; composite sync, negative-going TTL
Audio input	up to 6 V p-p (line level) or down to 20 mV p-p (microphone level) without clipping
Speakers	stereo, ported chamber; minimum 90 dB SPL at 1 kHz at 0.5 m; 100 Hz-15 kHz ±3 dB
Headphone output	1.75 V p-p into 4 Ω; 2 V p-p into 10 kΩ
Mains	100-240 VAC ±10%, 50-60 Hz ±3%; 55 W maximum, all line conditions
Controls	front keypad: contrast, brightness and volume keys, mute and microphone buttons; rear on/off switch
Size and weight	13 in (330 mm) H × 13.5 in (344 mm) W × 15.5 in (394 mm) D; 33 lb (15 kg)
Warm-up	20 minutes to meet all specifications
Environment	operating 10-40 °C (50-104 °F); 90% relative humidity maximum, non-condensing

Contents

• Basics: Self-Threading Screws (PDF pp. 3-4). The chassis uses both machine screws and self-threading screws; Apple says not to overtighten the self-threading ones and to back each off slightly before tightening to be sure it is in its existing thread.
• Specifications: Characteristics, Controls, Electrical, Physical, Environmental (PDF pp. 6-12)
• Troubleshooting: General; symptom charts for No Raster, Geometry, Synchronization, Video, Audio and Miscellaneous (PDF pp. 14-26)
• Take Apart: Rear Cover, Audio Enclosure and Speakers, Video Cable and Strain Relief, Main Board, On/Off Switch Assembly, Monitor Stand, Base Assembly, Front Panel Controls and LEDs, CRT Assembly, Microphone Assembly, Bezel, Fuse (PDF pp. 28-80)
• Adjustments: Geometry, Video, Light Meter Setup, Convergence, Geometric Distortion (PDF pp. 82-119). The adjustments use test patterns from Apple's Display Service Utility and are to be made only after a 15-minute warm-up.
• Exploded View with part numbers (PDF pp. 120-121)

What it settles

The exploded view gives the service part numbers, including the fuse (922-0502, 4.0 A 250 V), the main deflection board (661-1699; 661-0169 for Rev. B), the CRT assembly (661-1666), the audio enclosure with sound board (922-0386), the microphone assembly (922-0389), the speakers (922-0387), the video cable (922-0388) and the AudioVision adapter cable (922-0419). The fuse is on the main board and is prised out with a small screwdriver after the CRT has been discharged and the anode cap removed.

The symptom charts list two things that are not faults. A thin horizontal line about one-third of the way up the picture is the aperture grille's support wire, common to all Trinitron-type displays under 15 inches, and cannot be adjusted out. With some Logitech mice the mouse has no effect while keyboard input is accepted; Apple says the display is not at fault and should not be replaced. The Audio chart deals only with settings: mono or stereo output, microphone on or off, mute, volume and the sound input and output source.

What this manual does not contain

It is a module-level manual. The hardware cures in the symptom charts are to replace the main board or the CRT, and there is no parts list below module level, no schematic, no component values and no audio circuit data.

Pages that cite this document

• 17" ColorSync Displays Service Source
• Macintosh Color Display 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: Audiovision 14 display.pdf