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Service Hints & Tips |
Document ID: LWIK-3NHN85 |
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This document is provided to IBM and our Business Partners to help sell and/or service IBM products. It is not to be distributed beyond that audience or used for any other purpose. |
TP 760C/CD/L/LD/E/ED/EL/ELD - Undetermined Problems
Applicable to: World-Wide
Undetermined Problems :
You are here because the diagnostic tests did not identify which adapter or device failed, installed devices are incorrect, a short circuit is suspected, or the system is inoperative. Follow the procedures below to isolate the failing FRU (do not isolate non-defective FRUs).
Verify that all attached devices are supported by the computer.
Verify that the power supply being used at the time of the failure is operating correctly. (See "Power Systems Checkout")
1. Power-off the computer.
2. Check the cables, wires, and connectors for short circuits and open circuits. Visually check them for damage. If any problems are found, replace the FRU.
3. Remove or disconnect all of the following devices.
a. Non-IBM devices
b. Devices attached to the expansion bus connector
c. Printer, mouse, and other external devices
d. Battery pack
e. Hard disk drive
f. Diskette drive/CD-ROM drive or the device attached in the UltraBay.
g. DIMM card
h. PC Cards
4. Power-on the computer.
5. Determine if the problem has changed.
6. If the problem does not occur again, reconnect the removed devices one at a time until you find the failing FRU.
7. If the problem remains, replace the following FRUs one at a time. Do not replace a non-defective FRU.
DC/DC card
Video card
Keyboard card
LCD assembly
System board
DSP card/Audio (ESS) Card
CPU card
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Hint Category |
Hardware Maintenance Information | |
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Date Created |
31-07-96 | |
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Last Updated |
12-06-98 | |
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Revision Date |
08-06-99 | |
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Brand |
IBM ThinkPad | |
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Product Family |
ThinkPad 760C, ThinkPad 760E, ThinkPad 760CD, ThinkPad 760ED, ThinkPad 760EL/ELD | |
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Machine Type |
9546, 9547 | |
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Model |
Various | |
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TypeModel |
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