How do i take apart my 52" HP id5220 HDTV?

they said i need to pay 700 bucks for a new brick. its very problematic and has had the brick replaced before. im pissed and as a last resort i want to take it apart and attemt to fix it myself. if anyone has or knows where i can get the blueprints to look iside it and see whats up i would greatly appreciate it. let me know if you have any ideas, thanks.