During a recent shift round of AV equipment and the resultant unplugging ad replugging of cables I have managed to damage the RF2 socket on the back of my Sky+ box. The central pin is missing and therefore the connections to other rooms are off. Does anyone have any experience of this? Is it easy to fix yourself (I have an old Sky box I could 'canibilise' for parts)? Or is it something best left to an expert?