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3.605 bytes |
Service Hints & Tips |
Document ID: LWIK-3NHMT8 |
TP 760 - Keyboard/auxiliary input 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 video card.
If the keyboard cable connection is correct, check the DSP card (see DSP Card Checkout) or Audio Card (ESS) card (see Audio (ESS) Card Checkout).
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 icon in the Easy-Setup screen.
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.
Note : When a Fn key is pressed, a black square briefly appears.
If the tests detect a keyboard problem, do the following one at a time to correct the problem. Do not replace a non-defective FRU.
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 the above devices do not work, reseat the cable connector and repeat the failing operation.
If the problem does not occur again, recheck the connector.
If the problem is not corrected, replace the device, and then the system board.
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Hint Category |
Input Devices | |
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Date Created |
31-07-96 | |
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Last Updated |
19-08-98 | |
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Revision Date |
18-08-99 | |
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Brand |
IBM ThinkPad | |
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Product Family |
ThinkPad 760C, ThinkPad 760E, ThinkPad 760CD, ThinkPad 760L/LD, ThinkPad 760ED, ThinkPad 760XD, ThinkPad 760EL/ELD, ThinkPad 760XL | |
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Machine Type |
9546, 9547 | |
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Model |
Various | |
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