Specifications
Troubleshooting Symptom Charts - 4
Symptom Charts
Important:
For procedures that require the monitor to be turned
on, allow the monitor to warm up for approximately 20 minutes,
unless instructed otherwise.
Caution:
For procedures that require a second known-good
monitor, do not use the AppleVision 1710 or 1710AV display.
Connecting this type of monitor could cause the AppleVision
software to operate erratically because the similarly-designed
AppleVision software is not compatible across display product
lines.
No Raster
No raster (screen is
black); power
indicator light off
1 Shut down computer and monitor. Inspect power cord for
damage; use ohmmeter to check for continuity.
2 Verify that monitor is connected to live power source, that
power is on, and that computer connected to display is on.
3 Replace main deflection board. Then adjust the display (see
“Adjusting the Display after Replacing the Main Deflection
Board” in this chapter).
4 Call Apple Technical Support. (In the US, call 1-800-919-
2775, option 3.)
No raster (screen is
black); amber power
indicator light on
1 Verify computer video signal by connecting known-good
monitor.
2 Check cable connections.
Important:
Be sure the ADB and video cables from the
monitor are connected to the ports on the computer
.
3 Go to “Diagnosing a Suspected Hardware Problem” at the end
of this chapter.
4 Call Apple Technical Support. (In the US, call 1-800-919-
2775, option 3.)
No raster (screen is
black or predominant
color); slanted
horizontal lines;
green power
indicator light on
1 Check that front panel Brightness and Contrast controls are
not set to their minimum settings.
2 If a recent version of AppleVision software (version 1.5.2 or
later) is not installed, connect another known-good monitor
to install it.
• Find the latest version of the AppleVision software at the
Apple Software Library on the Internet (http://
swupdates.info.apple.com/).
• Remove the other monitor and reconnect the AppleVision
display.
Restart computer. Press and hold Command-Option-a-v