My LCD display not working.

My LCD display is not displaying and the camera not able to take any photo. When you try to shoot a photo it doesn't appear the red dots to focus. The camera also has the red and blue light on, as soon you put batery on. I read it might be a CF card problem and printing , format card nothing happens, Tried the technique of remove lens, remove card and batery, didn't work for me. The camera was warmer than normal in the display area. Open the camera and seems that is the the main PCB under the display that is getting hot not the display ,can you help please? I am guessing that is the PCB that is faulty.