32 inch panasonic ct-27sl14

Question

Do you think I can repair this myself? I did unscew the back panel and it didn't come off completely. There was a circuit board that slides out but not completely and wires were still attached to alot of stuff in there that wouldn't allow the case to come off completely. Let me know if you think I can do this myself. What makes you think it is these parts that I need? Please help. Lori