3. Verify that the tablet and pen are working:
•
Press the pen tip against the display and verify that the status LED lights blue.
•
If the LED does not light, verify that the DTF-720's USB cable is plugged into an active USB
port. If the DTF-720 is plugged into a USB hub, try plugging the DTF-720 directly into the USB
port on your computer.
•
The status LED will light blue when the DTF-720 is registered as a USB 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 tablet
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 DTF-720.
If you are still having problems, you may have a defective pen or pen display tablet.
Troubleshooting
Page 30