It is very important for anyone that is attempting TV repair on their own to know the very real dangers of high voltage in these units. Unfortunately, it is not the same as making repairs on your DVD player or your VCR. There is quite a bit of electricity even after the unit is unplugged.
A great way to get the TV repair that you need is to use your television's owner's manual. Here, you can find out what is wrong with your unit, but you can also find out what needs to be done to repair it. If you do not have the manual, you can often down load them from the web.