Why does my TV screen go black but has sound?
Replace the HDMI cable as it may have a short or another defect which causes the black screen issue.
Unplug the TV for 5 minutes to attempt a reset.
Unplugging the TV will reset the television and clear any temporary issues.
Factory reset of the TV to resolve the issue..
What should TV backlight be set to?
Backlight: Whatever is comfortable, but usually at 100% for daytime use. Adjusting this will not detoriate picture quality. Picture Size or Aspect Ratio or Overscan: Screen Fit (Samsung)
How much does it cost to replace backlight on TV?
TV backlight repair costs $100 to $125, including replacement parts and labor. You will pay more in trip fees to have the unit repaired at home. The price of backlight replacement parts averages around $2.50 for each LED and between $20 and $25 for each CCFL strip.
Can a backlight be fixed?
If it’s a backlight or power supply problem, it can be fixed. Usually, the problem stems from the high voltage inverter circuitry, either bad power transistors, capacitors, or thermal stress on the circuit board leading to broken solder joints. But fixing these problems can often be a short term solution.
What causes LED backlight failure?
Backlight circuit failure can also occur from damage to the electrical traces on the circuit board. If the electrical traces buried in the board are inadvertently severed—for example, from trying to fasten the board with too large a screw—the backlight circuit will not conduct power to the backlight LEDs.
How can I test my LCD TV backlight?
As backlight failure is a very common issue, this is the first thing to test. To do so, the easiest way is to power on your screen, put a flashlight very close to it and check if you can see the image through. The image would be very dark, like turning the brightness of the screen very very low.
How do I fix my TV when the screen is black?
Tips You Can Try to Fix A Black or Blank TV ScreenSwitch off your TV and then unplug it.After 15-30 minutes, plug the TV back in then press and hold the power button for a few seconds.Next, release the button and turn on the TV again.More items…•Sep 3, 2019