AppleVision, ColorSync Displays: Basic Troubleshooting

This article offers some troubleshooting tips and procedures for the following monitors:
  • AppleVision 1710
  • AppleVision 1710AV
  • AppleVision 750
  • AppleVision 750AV
  • AppleVision 850
  • AppleVision 850AV
  • ColorSync 17-inch Display
  • ColorSync 20-inch Display
Before you Begin

It is imperative that you install the latest version of AppleVision software. These displays rely heavily on software and each update provides enhanced communication and reliability. Version 1.5 or later is recommended in order to invoke the recovery routines (Option-Command-A-V). Mac OS 8.6 includes AppleVision 1.7.1 software. To find the most recent version of this software, refer to Apple Downloads.


No Power, No Video


Green power light, Blank screen at startup


Green power light, Blank screen after extension loads


Blurry Video


Orange power light, blank screen


AppleVision 1710 & 1710AV: No video after waking from sleep

With an AppleVision 1710 or 1710AV display connected to a Macintosh, when the Macintosh wakes from sleep mode, the monitor's LEDs may not power on and the monitor may not display any visible raster.

This intermittent behavior may be corrected by powering the monitor off then back on.

Computer hangs when extension loads



Not recognized as AppleVision display or Boots in 640x480


Consult with an Apple Authorized Service Provider for possible hardware service.

Not using Mac OS 8 or does not have AppleVision 1.5.3



Notes

Some displays (AppleVision 1710, ColorSync 17-inch) will not power up without a proper video signal. Some 68020- and 68030-based machines, for example, will not output the correct signal.
  1. Third party ADB devices include devices such as non-Apple keyboards/mice, joysticks, tablets, splitters, switchboxes, and extender cables.
  2. Malfunctioning mice, keyboards or ADB cables will cause the computer to intermittently hang, or cause other erratic ADB behavior.
  3. All Macintosh computers come with built-in video except for some PowerBooks and all-in-one computers. On 9000 series systems, built-in video is defined as the Apple-supplied video card.
  4. On PowerBooks and HDI-45 machines, suspect the adapter before you suspect the monitor. Try another monitor with the same adapter or another adapter. Monitors should be plugged into the Macintosh side only of a DOS-compatible for troubleshooting, so remove any splitter/adapters in the video chain.
  5. No chime usually indicates a failure with the computer. Plug the keyboard into the computer instead of the monitor, or try the reset button on the computer to be sure of where the fault lies.

Published Date: Feb 18, 2012