WTB: Mainboard for Sony Vaio PCG-FX240

Bought this unit from a local individual with the promise that "all it needs
is the DC input jack replaced on the board" Have done that and board still
appears dead. Can anyone source a mainboard for this unit? I know there are
some varieties of this model, can supply unit specific model number and
board part number

TIA
Mike in Dallas
atxguy at comcast dot net