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Cannot find Data Acquisition Subsystem (DAS).
The computer not finding the DAS unit can be caused by several factors.
LX3000 DAS Unit:
Make sure the cables are connected tightly check your batteries (4 AA?) Check your com ports - especially if this is the first time using the DAS or you have just reinstalled the software. If you are unsure how to check the com ports give us a call. If you have just installed the synch software for a Palm PDA you must disable that software to connect with the DAS unit.
LX4000 DAS Unit:
- Right Click on "My Computer" and select the "properties menu'. My Computer will be located on the desktop or in the Start menu.
- Left Click on the "Hardware" Tab.
- Click on the "Device Manager" Button.
- Click on the "Universal Serial Bus controllers" so a minus sign arrears on the left hand side. Find the item "USB High Speed Serial Converter" or "LX4000 Computer Polygraph."
- Right-Click on the item found above and select "Update Driver."
- Select the second item in the list: "Install from a list or specific location (Advanced)."
- Click on the box next to "Include this location in the search." Then click on the "Browse" button and find the driver located on the LX Software CD-ROM. The driver is located at "CD DRIVE\program files\Lafayette Instrument\LXSoftware\Driver."
- Click the "Next >" button.
- A search will begin to find the driver.
- If this dialog appears, click on the "< Back" button and continue with Step 11. Otherwise skip to Step 13.
- A new item will appear on the search dialog. Select the "Don't search, I will choose the driver to install" and click the "Next >" button.
- If the "LX4000 Computer Polygraph" appears in the list, click the "Next >" button. Otherwise click on the "Have Disk" button and find the driver located at "CD DRIVE\program files\Lafayette Instrument\LXSoftware\Driver\ftdi2xx.inf."
- Click "Continue Anyway."
- Add Hardware Wizard begins.
- Click the "Finish" button.
- Unplug the DAS from the computer. Wait 5 seconds and plug the DAS back into the computer.
- Start the LXSoftware.
Note: If you have a computer with hyperthreading, you may need to update the driver for the LX4000 Computer Polygraph, please contact firstname.lastname@example.org for more information.
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Question Last Updated on: 5/21/2013
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