Hey anyone, I need help... I have a Mitsubishi ws-65807

You had a convergence circuit failure. When it failed you had a fuse for the -26v line open and probly the +26v fuse open. The convergence circuit in this set is on the powersupply board and is real tricky to to take out because of hidden screws on the heat sink that also hold the board in place. I would call a Mitsubishi Service facility to repair it. It will need either a pair of SKT 392-570's or a SKT393-100 and two 5A Pico fuses. As far as the sound going
out, it could be a bad Audio output Ic, it happens to be on the same board as the Convergence circuit. What bothers me is that
some of these models have had a leaking issue of cooling fluide from the crts. On Some models they had mounted a tray under the crts, other models they did'nt. Right where the Audio output and the Convergence circuits are is a prime place for this fluide to leak. You can varify this by taking the speaker geill off the front, remove the screws holding the front wood cover and right on the center board near the front of the board you would see clear liquid dropplets and or corrosion of parts due the liquid that had leaked. You really don't want to know how much it would cost to replace the crts and the Power/Convergence boards if they are available. We are talking replacement of TV if that is the case. I hope I did'nt scar you, but it is a possibility. Let me know what you find.
Hope this helps,
Skyassoc