Troubleshooting Symptom Charts - 8
Thin horizontal lines
on screen
Displays larger than 15 inches with tron-style CRTs typically
have two wires, each about one-quarter to one-third of the way
from the top and bottom of the display image. These supporting
wires, which are thinner than a human hair, stabilize the
aperture grill against shocks. The lines are common to all tron-
style displays and are not screen defects. They cannot be adjusted
out or eliminated by repairing or replacing display modules.
Display does not work
with USB card in
Power Macintosh
computer
Important:
For customers, the Studio Display (21” CRT,
19.8” VIS) is approved only for use with the USB-based Power
Macintosh G3 (Blue and White). However, you can service this
display using one of the following PCI-based Power Macintosh
computers, running Mac OS 8.5 or later, with a third-party
Keyspan USB card installed in the PCI expansion slot:
• Power Macintosh 4400
• Power Macintosh 6400
• Power Macintosh 6500
• Power Macintosh 7200
• Power Macintosh 7250
• Power Macintosh 7300
• Power Macintosh 7350
• Power Macintosh 8500
• Power Macintosh 8550
• Power Macintosh 8600
• Power Macintosh 9500
• Power Macintosh 9600
• Power Macintosh 9650
Note:
Other third-party USB cards have not been tested with this
display.
To properly set up the display to work with one of the listed Power
Macintosh computers,
1 Install the Keyspan USB card in the PCI expansion slot.
2 Confirm that the computer has at least 2 MB VRAM (required
to enable all screen resolutions).
3 Perform a clean install with Mac OS 8.5 or later.
4 Install Apple Displays Software 1.7 or later.
5 Install USB driver 1.1 (called Mac Installer) from the disc
that comes with the Keyspan USB card.
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