Operation Manual

POWERSCAN D8590 User’s Manual A-9
Appendices
Appendix E — Troubleshooting
Problem: No Data Output.
When the trigger is pulled, the unit beeps and then triple-beeps, but does not output data.
Error Messages (String Output): None.
Possible Ca
use: POWERSCAN D8590 is not con
nected (USB or Serial) to the PC.
Solution:
1. Check to make sure the PC supports “High
Power Devices”
(self-powered hubs, some
laptops, etc.). Right-click on My Computer in the Windows Start menu, select Properties ,
click the Device Manager button on the Hardware tab, expand the Universal Serial
Bus controllers menu item, right-click on USB Root Hub, select Properties, and
then select the Power tab.
2. Make sure the PC is not allowed to power down the device. Follow the same path
described above, but select the Power Management tab instead of the Power tab.
Uncheck the Allow the
computer to turn off this
device to save power
box if it is checked.