I have a 61" rear projection CRT TV (Hitachi 61UWX10BA). It has deeloped soem pretty serious convergence issues that I want to fix. This TV has a "Magic" button that is supposed to fix convergence problems but it does not do anything. If somebody could point me in a direction to help me get convergence adjusted on this TV set I would be very gratefull? Is this something that I cna do by myself or do I need to call a specialist?