Question about IBM ThinkPad T40 2373 Notebook

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Ibm t40 blinks light an refuses to come on - IBM ThinkPad T40 2373 Notebook

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See a similar answer I recently posted.

To toubleshoot hook up an external display and if it has the data, then shine a flashlight closely into the front of the display. If you see some dim data, then troubleshoot the inverter first and replace if needed, or if its not the issue it is the ccl inside the display assembly.
If it is the ccl the either buy a used display on line, or if you are skilled and ambitious the change out the display ccl with a new one bought online (start with ebay).

If the external display does not display your data and the flashlight shows not dim data, remove the memory, reboot and check the post codes etc.

Good luck

Posted on Jul 22, 2010

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This is Lenova Support, and the download page for the drivers, for the IBM Thinkpad T40,

http://www-307.ibm.com/pc/support/site.wss/document.do?sitestyle=lenovo&lndocid=MIGR-46258

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Use a volt meter to check the battery. Most are relient on the battery for short bursts of power and to maintain the voltage. Make sure the power is comming from the charger also. Chargers go bad also. If the voltages are ok remove the battery and charger for 10 minuets for a cool down and try powering up again.

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usb ports are very simple decices, almost like a wall socket, they rarely fail, and if they do, it's generally a driver problem or the flat plastic pin inside the port has broken. Plus the usb ports are soldered to the board on these models. So, the usb failure you mentioned leads me to believe that that is another indicater that the board was going out. I'm a big fan of IBM, they are very durable machine. They can really take a beating. I cheched out Ebay and there are several T40 series motherboards up for bid. You should be able to get one at a decent price. Keep in mind that any of the T40 series boards will work for you.

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remove the hard drive and try to see if that boots up if does bad hard drive if does not do anything change the internal batery and try again i think that will fix the problem

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