I was the guest that posted above, but I will retype.
The convergence board is in charge of keeping the colors in the right spot. When the board starts to fail, colors can float out of the spot they are supposed to be, the picture can get fuzzy, and lines can appear. An example of one going out that I have personally seen was most noticeable when watching credits. You could see where the white text was supposed to be, but as the credits progressed down the screen, a ghost of blue was off to the left and had the effect of water.
The convergence board is in charge of keeping the colors in the right spot. When the board starts to fail, colors can float out of the spot they are supposed to be, the picture can get fuzzy, and lines can appear. An example of one going out that I have personally seen was most noticeable when watching credits. You could see where the white text was supposed to be, but as the credits progressed down the screen, a ghost of blue was off to the left and had the effect of water.
