With LCD TVs you can have the same display problems for different reasons. If a loose ribbon cable can produce a rainbow effect of vertical lines then so can a bad solder connection on the T-con board connector. Pinpointing an exact cause and effect can be difficult. This video is designed to give people a general idea as to what's wrong with your LCD TV but don't assume your results will be the same. Hopefully others will add their repair histories in the comment section of this video.