akorn, the power jack is a small plastic block that has wires (you can see a photo in the e-Bay link of the earlier post). In my machine, the block was loose and one of the wires actually broke. So the laptop would not power up at all and the battery would not charge. If you are still getting power,...

I found the part on eBay for much cheaper than other online sources. $34 shipped ($19 + $15 shipping). NEW IBM ThinkPad SL400 SL400C Power DC Jack 14W 44C9986 http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110459638732 I followed the FRU repair videos on: http://www.lenovoservicetraining.com/ion...

Bit of a problem getting powered on, the ac adapter was yanked out and now the jack into the laptop is very loose. So it won't power up or charge the battery. Plus it is out of warranty.... I believe the loose connector is called a "DC-in cable" (it is the yellow jack that the AC adapter plugs into)...