TROUBLESHOOTING

Verifying Installation on PC or Macintosh Computers

1.For Windows users (2000, XP, Vista, Windows 7), open the Device Manager to confirm that the USB 400 FO has installed correctly. Expand the entry for Universal Serial Bus controllers by clicking the + sign. If the USB 400 FO has been installed correctly, you should find it listed as a “Generic USB Hub”.

2.For Mac OS X users, open the System Profiler to confirm that the

USB 400 FO has installed correctly. In the left hand column under Hardware, select “USB” and inspect the right hand panel. If the USB 400 FO has been installed correctly, you should find it listed as a “Hub” under the USB high-Speed Bus/USB Bus.

The following table provides additional troubleshooting tips. The topics are arranged in the order in which they should be executed in most situations. If you are unable to resolve the problem after following these instructions, please contact technical support for further assistance.

PROBLEM

CAUSE

SOLUTION

All LEDs on

The Sender unit is not

1. Ensure that the USB

Sender unit are

receiving power from the

connection between the

off.

USB port or the optional)

Sender and host computer is

 

Sender 5VDC power supply.

properly installed.

 

 

2. Move the USB connector to

 

 

another USB port on the host

 

 

computer.

 

 

 

All LEDs on

The Receiver unit is not

1. Ensure that the 5VDC

Receiver unit

receiving power from the

power supply is properly

are off.

5VDC power supply.

connected to the Receiver

 

 

unit.

 

 

2. Check that the 5VDC

 

 

power supply is connected

 

 

to a live source of electrical

 

 

power. Check that the

 

 

Receiver power LED is

 

 

illuminated.

 

 

 

9

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Gefen EXT-USB-400FON user manual Troubleshooting, Verifying Installation on PC or Macintosh Computers