Chosen Solution
I cleaned my sony 50 inch with spray and cloth and bow i can hear sound but a blank screen could nit hear sound at fitst
@a5092aw The first thing to do, is to turn off the lights in the room the TV is located, make it as dark as possible. Then take a flashlight, and shine it at an angle on the screen (while it’s powered on and should be showing a picture). If you can see shapes / shadows that corresponds to what you should be seeing, then you have a problem with the backlight. Next, unplug the TV from the mains and hold the power butting in for 30 seconds (to drain as much residual power from the capacitors as possible). Take the back off the TV (be careful as there are capacitors in there that holds high voltage, and might not be discharged), and inspect the boards closely for damaged components. Take some good quality and up close pictures, then update your question so we can see what you see. Adding images to existing questions. If the backlight is the problem, we will need to diagnose whether it’s the LED strips or the backlight driver circuit that’s done for. Unfortunately, spraying the TV with a cleaner can destroy the panel itself, but let’s not jump directly to that conclusion :)
all I can say is that the liquid if a chemical might have ruined the screen and leaked inside and you might need to send it in for repair
