Weird colours all of a sudden

These sets sometime have a fault with the auto degaussing circuit. It will start to work and because of a bad solder connection, the unit shuts off the degaussing right in the middle of it cycle and cause a rainbow effect of color. Your gonna have to go in and trouble shoot the degaussing circuit my freind, BUT if your not a tech I highly advise against this as theres alot of high voltage inside these sets. Have it checked out by a service person. It really depense on you if its worth it. Personally, myself, I wouldnt invest a dime in a 15 year old set. Good Luck