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Service Hints & Tips |
Document ID: GKEY-3JMM9E |
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TP 765D/L - Keyboard or Other Input Device Checkout
Applicable to: World-Wide
Keyboard or 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 video card.
If the keyboard cable connection is correct, check the DSP card (see -- Heading 'DSP' unknown --) or Audio (ESS) card (see żAudio (ESS) Card Checkout (765L)— on page 3).
If the tests do not detect a keyboard problem, run the keyboard test by doing the following:
1. |
Go to the diagnostic menu screen by selecting Test in the Easy-Setup menu. |
2. |
Press Ctrl+A to enter to the advanced diagnostic mode. |
3. |
Press Ctrl+K ; a layout of the keyboard appears on the screen. |
4. |
Check that when each key is pressed, the key's position on the keyboard layout on the screen changes to a black square. |
Reseat the keyboard card cable. | |
Replace the keyboard card cable. | |
Replace the keyboard card assembly. | |
Replace the video card. | |
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.
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Hint Category |
Hardware Maintenance Information | |
Date Created |
03-07-97 | |
Last Updated |
07-04-98 | |
Revision Date |
13-03-99 | |
Brand |
IBM ThinkPad | |
Product Family |
ThinkPad 765L, ThinkPad 765D | |
Machine Type |
9546, 9547 | |
Model |
Various | |
TypeModel |
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Retain Tip (if applicable) |
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