Kathleen, the DC adapter connector may be part of the system board so that replacing it would be a big operation. For more information, go to the Sony site: <http://esupport.sony.com/perl/model-documents.pl?mdl=PCGFRV37> I know that IBM publishes hardware manuals for its laptops, but I don't know about Sony. Good luck. Robert Turnbull, Toronto, Canada PCBUILD maintains hundreds of useful files for download visit our download web page at: http://freepctech.com/downloads.shtml