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K Service Source
Apple Multiple Scan 720 Display
K Service Source
Hot Issues
Apple Multiple Scan 720 Display
Hot Issues Introduction - 1
Introduction
This chapter is designed to highlight unique or high-
priority product issues that you should be aware of before
servicing this display.
This chapter alerts you to important issues and provides
links to other areas in the manual where more complete
information can be found. This chapter is not intended to
replace other parts of this manual; it merely provides a
pointer to pertinent information in those chapters.
Hot Issues Jittery or Blurry Video with Power Macintosh 5500/6500 - 2
Jittery or Blurry Video with Power
Macintosh 5500/6500
If the display exhibits jittery or blurry video when
connected to a Power Macintosh 5500 or 6500, suspect the
computer, not the monitor.
Video jitter affects monitors connected to computers having
a 225 or 250 MHz logic board. Jitter is evident where the
pixels shimmer or jump at the edges of the screen, windows,
or dialog boxes.
Blurry video is seen as a fuzzy image over the entire screen
on monitors set to resolutions of 832x624 and higher.
Hot Issues Jittery or Blurry Video with Power Macintosh 5500/6500 - 3
Identifying Suspect Units
Video jitter or blurry video can be caused by Power
Macintosh computers within the following serial number
ranges.
Video Jitter