Samsung UN39FH5000F tv picture is no longer visible on the screen. I can however see the picture by using a flashlight. the picture is there, it is just not bright enough to be seen on the screen.
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If your Vizio TV has sound but no picture, and you have already done the flashlight test, it may indicate that your TV's backlight or power supply is malfunctioning. Here are some steps you can follow to troubleshoot the issue:
Check the cables: Make sure that all cables are properly connected between the TV and any devices you are using, such as a cable box or DVD player.
Check the input source: Ensure that the TV is set to the correct input source that the device is connected to. You can cycle through the input sources using the input button on your TV remote.
Power cycle the TV: Turn off your TV and unplug it from the power outlet for at least 1 minute, then plug it back in and turn it on again. This can sometimes resolve issues related to the TV's power supply.
Reset the TV: Try resetting the TV to its default settings. You can find this option in the TV's menu settings.
Contact support: If none of the above steps resolve the issue, it may indicate a hardware problem with the TV's backlight or power supply. In this case, you should contact Vizio support or a qualified technician for further assistance.
The Audio and Video are two separate components and operate independently of each other. Therefore: The Video portion requires technical repair by a technician with the proper test equipment.
Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electro-medical.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.
Its likely the panel itself or the digitizer is going out if voltage is flowing properly. If voltages are off then as I'm sure you know its the motherboard. Good Luck Friend!
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