|
3.931 bytes |
Service Hints & Tips |
Document ID: COBN-3H8BT3 |
TP 380,385 - Keyboard/auxiliary device checkout
Applicable to: World-Wide
The following information is intended for IBM Dealers and Authorized Servicers only. Customers attempting to follow any of the procedures below may void their warranty.
Keyboard/Auxiliary Input Device Checkout
Remove the external keyboard if the internal keyboard is to be tested.
If the internal keyboard does not work or an unexpected character appears, make sure that the flexible cable extending from the keyboard is correctly seated in the connector on the subcard.
If the keyboard cable connection is correct, run the keyboard test by doing the following:
1. Go to the diagnostic menu screen by selecting Test in the Easy-Setup screen.
2. Press Ctrl+A. The ThinkPad FRU Connections screen appears. (If the Ctrl+A does not work, triple-click on the icon on the right bottom corner on the basic diagnostic screen.)
3. Make sure that the keyboard connection is Connected; then press Esc to escape the screen.
4. A layout of the keyboard appears on the screen. Check that when each key is pressed, the key's position on the keyboard layout on the screen changes to a black square.
Note:
When a Fn key is pressed, a black square briefly appears.
5. Press Ctrl+ Pause to end the test.
If the tests detect a keyboard problem, do the following one at a time to correct the problem. Do not replace a nondefective FRU.
Reseat the keyboard flexible cable.
Replace the keyboard assembly.
Replace the subcard.
Replace the system board.
The following auxiliary input devices are supported for this computer:
Numeric keypad
Mouse (PS/2 compatible)
External keyboard (with keyboard/mouse cable)
If any of these devices do not work, reseat the cable connector and repeat the failing operation.
If the problem does not recur, recheck the connector.
If the problem is not corrected, replace the device, and then the system board.
|
Search Keywords |
| |
|
Hint Category |
Hardware Maintenance Information | |
|
Date Created |
19-05-97 | |
|
Last Updated |
19-08-98 | |
|
Revision Date |
17-08-99 | |
|
Brand |
IBM ThinkPad | |
|
Product Family |
ThinkPad 380, ThinkPad 380D, ThinkPad 380E, ThinkPad 380ED, ThinkPad 380XD, ThinkPad 385D, ThinkPad 385E, ThinkPad 385ED, ThinkPad 385XD | |
|
Machine Type |
2635 | |
|
Model |
Various | |
|
TypeModel |
| |
|
Retain Tip (if applicable) |
| |
|
Reverse Doclinks |