My TV turns sound works but no picture
Sanyo dp50747 TV has sound but no picture
Try checking the screen closely with bright images (if it is possible to get one displayed) and/or try shining a light on the screen. If you can make anything out on the screen, the backlight has probably failed. If, no matter what you try, you can’t see anything, the display itself has probably failed or disconnected. It is best to consult a disassembly guide or professional to fix these issues unless you know you can do it yourself and have the right tools.