   fixing corroded solder points?
  i have recently opened up my dead rear projection tv and looked at the bottom of the main circuit board for any obvious problems. and i have noticed that there are a few corroded soldier points leading to the power monitoring intergrated cirtcuit for the convergence (which explains why when i unplug the power to the convergence my tv turns on fine). so my question is, how do i repair corroded solder points? thanks!   
  Depending if the area around the solder joint is corroded or not, you can try to clean the joint, re-heat it, and apply fresh solder.Be careful when re-heating the solder because the area is not truely clean and there is an uncertainity in what kind of solder the manufacturer utilized.   