If you wish to get some details; check the site linked here. Pull up older posts.
http://schematicscom.blogspot.com/
http://electronicshelponline.blogspot.com/
Search the site by type in the "brand name" to your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts
Circuit diagrams of many popular brand TVs and other devices are given.