If it's only capacitors that have failed they are cheap and easy to replace. Aluminium capacitors are a common point of failure for many power supplies. If the ends (larger capacitors usually have a cross indented on them) are even slightly bowed then this is a sure sign of failure. The worlds landfill sites are full of billions of dollars worth of failed electronics that could have been repaired by replacing a 50c aluminium capacitor with that tell-tale sign.