promethean DTF521, Инструкция по установке и эксплуатации, Страница: 34 / 147

Troubleshooting
page 30
3. Verify that the tablet and pen are working:
• Press the pen tip against the display and verify that the status LED lights blue.
•
•
disabled. It may be necessary to check your system BIOS setting to verify that you have
connected the pen display to an active USB port.
•
device and the pen tip is pressed against the display.
4. Check the pen. If you cannot make a selection on the display screen with the pen:
• Test the pen by pressing the pen tip against the surface of the pen display tablet. The status
LED should light blue.
• Now, without applying pressure to the pen tip but keeping the pen within 5 mm (0.2 inch) of the
pen display tablet surface, press the side switch. The status LED should again light blue.
• If the status LED does not light blue for these tests, be sure you are using the correct pen that
came with your pen display.
If you are still having problems, you may have a defective pen or pen display.
DTF521_Manual.fm Page 30 Tuesday, April 11, 2006 10:43 AM
If the LED does not light, verify that the Active Panel’s USB cable is plugged into an active USB
port. If the pen display is plugged into a USB hub, try plugging it directly into the USB port on
your computer.
Be sure that the USB port to which you are connecting the Active Panel has not been
The status LED will light blue when the Active Panel pen display is registered as a USB