Loose input connections. Check all input connections to make sure they are secure. Faulty HDMI cable. Try using a different HDMI cable. Power saver mode. Make sure power saver mode is turned off. Backlight issue. If the backlight is not working, the TV screen will go black but the sound will still work. In this Video we have a Samsung model UN50J5200AFXZA that powers on with a flashing red standby light, but has a totally black screen with no picture. If yo I was just looking for a fix for this. I have the same model laptop running Windows 11 right now. If the display turns off for any reason, the keyboard backlight functions cease to work. The touchpad disabling function key also stops working. Options. More than likely you have 1 or more LED's that are shorted out. When this happens the LED strip will draw too many amps and the board will shut down all LED lights as an over-amp precaution. This happened to my 50" LG and I was able to fix it at no cost by removing that particular LED strip from the circuit. Backlight Not Working in Hisense TV. The most likely hardware problem with your Hisense TV is the LED backlight. Due to this, your TV screen looks black, but its sound is heard, and the LED light of Hisense TV also works properly. A shot at the mainboard or power board circuitry renders the LED backlight unusable. Direct LED or FALD Tv Backlight The double name of the backlight is due to the fact that some manufacturers for marketing purposes changed the name in order to promote their products on the market. The first name for the backlight is Direct LED and it has been installed on TVs since 2012. .

led tv backlight not working