IBM/Lenovo has quite some info. Try this:
http://www-307.ibm.com/pc/support/site.wss/quickPath.do?quickPathEntry=26475KU Then, click "User's guides and manuals". The Hardware Maintenance
Manual shows how to replace a mini-PCI pci card, including connecting
the internal WiFi antenna's.
Other links may exactly describe what's in this specific thinkpad and
what's not. I found this support area quite helpful for my T40.

Hope this helps.
Best regards,
Jeroen Besse

On 10/8/06, John Clemente <os2-wireless_users@2rosenthals.com> wrote:

I have a T23 model 2647 5KU with no wireless card.

Can anyone tell me if this machine is configured with an antenna and
would accept a mini PCI wireless card if I opened it up? I no longer
have any of the manuals.

John Clemente
Albany, NY

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