Universal Serial Bus (USB) Test (TP 560Z - 2640)
Universal Serial Bus (USB) Test
At the advanced diagnostic test menu, connect the USB parallel test cable (P/N 05K2580) to the computer shown
below:
Click on USB-1 to run the test.
Follow the instructions on the screen. OK appears if the test passed, but three lines
of error codes appear if the test failed.
The defective FRU must be the system board.
Use the cable number 2 for an external USB port, such as a port replicator.
Please see the LEGAL - Trademark notice.
Feel free - send a 
for any BUG on this page found - Thank you.