Your TVs horozontal output section is in trouble. whether it is not getting voltatges properly, of horizontal output transisotor or line outout transformer has damaged. Just open your TV, and pull out the main circuit board our of it, and put it upside down. Check the voltage at the pin number  of line drive transformer [Tr52001]. If there is voltage check the voltage at its pin number marked . If there is no voltage, the line drive tranformer is damaged [open winding]. Replacing it will solve the problem
If there is also voltage, check the frequency at the collector of line driver transistor [T52001-BC637]. It should come around 15550Hz. If there is no frequency at all check the frequency at the base of that transistor, and it should also be the same as above mentioned.
It is very difficult to explain all the components and its frequency, voltage etc. If you are able to collow its schematic diagram, I've with me. If you send me a mail asking it over the email address of mine, I'll send back it to you as an return mail attachment. The document is in Adobe Acrobat format, and you must have Adobe reader installed on your system to reproduce it. It can be downloaded from net absolutly free. If you are interested do the same as I mentioned.
. mention the diagram you wants also, sometimes I may forget it. OK.