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Service Hints & Tips |
Document ID: GSMH-3D6G22 |
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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 710T - Undetermined Problems
Applicable to: World-Wide
Undetermined Problems:
1. Power-off the computer.
2. Remove or disconnect one of the following devices:
- Any external device or cables (including the keyboard)
- Internal modem card
3. Power-on computer power and run diagnostic tests.
4. If the symptom remains, repeat steps 1, 2, and 3 until you find the failing adapter or device.
5. If all devices are disconnected and the symptom remains, go to ¨Power Systems Checkout´. If this does not solve the problem, replace the system board.
6. If an intermittent problem remains after replacement of the FRUs, consider external electrical noise that can have an effect on the computer. Check that the EMC contacts on the system board are not broken. The contacts are fragile and can be easily damaged.
Short Circuit Test:
1. Visually check the cables, wires, and connecters for any short circuits, open wires, and damage. If a short circuit or burned parts are found, replace the parts.
2. Disconnect, then reconnect all the external devices from the computer one by one and see if the same symptom appears. If you find that an external device has a problem, follow the maintenance procedure for that device.
3. If the same symptom remains with no external devices connected, the problem is in the computer. Isolate the failing component in the computer by changing the FRUs one by one until you find the problem. Replace the DC/DC card and the system board first.
If the symptom is that the battery becomes low on power quickly, and all the tests run without detecting any errors, replace the battery pack first.
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Hint Category |
Hardware Maintenance Information | |
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Date Created |
09-01-97 | |
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Last Updated |
15-04-98 | |
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Revision Date |
09-04-99 | |
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Brand |
IBM ThinkPad | |
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Product Family |
ThinkPad 710 | |
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Machine Type |
2523 | |
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Model |
Various | |
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TypeModel |
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Retain Tip (if applicable) |
N/A | |
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