it doesnt turn on at alll right??? does any battery charging lights or AC(light thatb tells u its plugged in) come on when plugged in????
my guess is u may of frazzeled a core compnent of the laptop but if lights come on still it could be a burnt out component like the VGA(graphics card onbord or decidated) or your monthboard may have compelty failed. i take it your lapops out of warrenty????
if you are goin to try and fix your self look here for a guide on how to dismatle your toshiba 5105.
http://www.irisvista.com/tech/laptop...a_remove_1.htm
hope this helps.