Question about IBM ThinkPad T40 2373 Notebook

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Replacing the DC Power Jack IBM Thinkpad T40

Can you tell me what the easiest way to get to the jack is. do i have to remove all the screw in the bottom? is there an easier way.

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  • heyusethis Jan 22, 2009

    thanks but, the link is dead. i don't think the manual talks about replacing the DC Power Jack

  • heyusethis Jan 22, 2009

    thanks for resending the link. it appears as though I need to dismantle the entire laptop to get to the $3 part I need to replace.

    thanks again for the manual


  • ajw204 Feb 12, 2009

    new link to manual please? i need it too. thanks.

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Best way is to follow the mainenance manuals instructions. U can get these online for free in most cases. I happen to have yours bookmarked as my brother has the same laptop as you and his was in need of repair. Here you go. 39t6192_01.pdf
This gives a whole breakdown for dissasembly.

Posted on Jan 22, 2009

  • Chris NoSay Jan 22, 2009

    I'm sorry. Try this.
    The download link is on this page.

    It wont say how to replace the dc power jack, but it'll tell you how to get the motherboard out which is where the dc power jack is located. You can then desolder the dc power jack that's there and swing down to radio shack find one that's the same and solder that one in. If you aren't comfortable soldering then you probably should have it professionally done as you can damage the board if you don't know what you're doing. I don't know your level of experience with such things. Hope this helps. Good luck.


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I concur with what Diegotech stated.

To iterate further;

1) The DC Power Jack (DC IN), may have cracked solder joint/s on the motherboard connector, (Female), where the DC Power Jack plugs in.

Resolder

2) The DC Power Jack may be broken.
Center Pin mount, and/or body of DC Power Jack, and/or Outer Shell mount.

Replace DC Power Jack.

3) Wires from the DC Power jack plug to the female connector on the motherboard, may be bad.

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Two examples, of a place to buy an IBM ThinkPad T41 DC Power Jack,

1) http://www.buy.com/prod/dc-power-jack-connector-socket-for-ibm-thinkpad-t40-t41-t42-r50-r51-r52/q/sellerid/23962916/loc/101/215782035.html

2) http://www.machinaelectronics.com/store/buypart/IBM_Thinkpad_T41/DC-P001

Past this point it's a bad DC sensor on the motherboard.

Replace motherboard.

IBM ThinkPad T41 Service Manual, (Free),

http://www.tim.id.au/blog/tims-laptop-service-manuals/#toc-ibmlenovo

On this page go down to the 8th line.
The one that starts with > ThinkPad T20.

Go across, and click on > T41

Takes approximately 2 seconds to see the first page, and additional time to fully download.

Page 142 for 14.1 inch LCD screen
Page 151 for 15 inch LCD screen

(PDF file page number box at top)

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