Lenovo ThinkPad 770X Hardware Maintenance Manual for 770 series notebooks(Janu - Page 48

Displaying the Error Log, The error is also

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RUNNING THE DIAGNOSTICS 3. 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. If you want to test the USB port on the port replicator, connect the USB parallel test cable to a port replicator and click on USB-2. If you want to test the USB ports on a docking station, connect the USB parallel test cable to the USB ports of the docking station and click on USB-3 and USB-4. Displaying the Error Log Diagnostic errors are printed on a printer attached to the parallel port when the error is detected. The error is also logged in the system memory. Use the following procedure to display the errors: 1. Enter the advanced diagnostic test. 2. Press Ctrl+E. 3. The error log appears. 4. To exit the screen, click on Exit or press Esc. The error log is not saved when system power is turned off. 42

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RUNNING THE DIAGNOSTICS
3.
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.
If you want to test the USB port on the port replicator,
connect the USB parallel test cable to a port
replicator and click on
USB-2
.
If you want to test the USB ports on a docking
station, connect the USB parallel test cable to the
USB ports of the docking station and click on
USB-3
and
USB-4
.
Displaying the Error Log
Diagnostic errors are printed on a printer attached to the
parallel port when the error is detected.
The error is also
logged in the system memory.
Use the following procedure to display the errors:
1.
Enter the advanced diagnostic test.
2.
Press
Ctrl
+
E
.
3.
The error log appears.
4.
To exit the screen, click on
Exit
or press
Esc
.
The error log is not saved when system power is turned
off.
42