External Keyboard
Notes
If a mouse or other pointing device is attached,
remove it and see if the error symptom goes
away. If the symptom goes away, the mouse or
other pointing device is defective.
The computer keyboard does not work when an
external keyboard is connected.
1. Power-off the computer.
2. Disconnect the keyboard cable from the external
keyboard.
3. Power-on the computer and check the keyboard cable
connector for the following voltages. All voltages
have a ±5% voltage tolerance.
Not used
Not used
4. If all voltages are correct, replace the external
keyboard.
5. If the voltages are not correct, replace the following
FRUs one at a time until the problem is corrected.
Note
If the replaced FRUs do not resolve the problem,
put the original FRUs back in the SelectaDock
Docking System. Do not replace nondefective
FRUs.
a. Keyboard cable
b. Main card of the SelectaDock Docking System
How to Run the Diagnostics
This section describes how to run the diagnostics for both
the computer and the SelectaDock Docking System.
Diagnostics for ThinkPad
Use either the TrackPoint III or the cursor move keys to
interact with the tests. The Enter key works the same as
selecting the OK icon to reply OK.
1. Press and hold F1; then power-on the computer.
Hold F1 down until the Easy-Setup screen appears.
2. Select Test and press Enter.
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