easy ways to fix LED TV has sound but no picture repair, watch this TV repair service troubleshooting guide. this repair Guide shows 3 easy ways how to Troubleshoot LED LCD TV by testing main logic, power, backlight LED driver boards and checking for dark picture with a flashlight. see part 2 how to fix backlight on TV, this TV repair guide works on Vizio, Sony, Samsung, Vizio, LG, GE, Hisense, Panasonic, Toshiba LED TVs. Part 2 is the TV backlight repair see here https://youtu.be/YgaL6X6eSaU (Vizio E470i repair) check out shopjimmy TV repair channel- https://www.youtube.com/user/shopjimmy