black screen but audio is good, what to do? LG 42LB552A - TB
black screen but audio is good, what to do?
armas_frank start off by turning the TV on and set it to a station where you know you would normally have a picture. Then shine a flashlight at an angle against the screen. If so you know that you are having backlight issues. Unplug the set and remove the rear cover. Check all the boards for obvious damages like domed or leaking capacitors. Check all the wires for proper insertion into the connectors. Then check the fuses on the power board as well as the T-con board for continuity. Right now it appears as if you have either a failed power supply (LED driver) or bad T-con board. Post plenty of images of your boards with your question so that we can see what you see and help you further in troubleshooting your TV. Use this guide Adding images to an existing question for that, That way we can see what you see.