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Re: tv turns on but screen stays black, all sounds can be...
Yes. It is the fault with its back light inverter. Contact any service technician. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. http://electronicshelponline.blogspot.com/
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Check the connections: Make sure that all the connections between your TV, cable box, or streaming device are securely plugged in.
Check the settings: Make sure that the TV is set to the correct input, and that the cable box or streaming device is set to the correct output.
Check the backlight: Some TVs have a backlight setting that can be adjusted. Make sure that the backlight setting is not turned off or set too low.
Check for a firmware update: Check if there's any firmware updates available for your TV and make sure that it's up to date.
Check the cable: If the cable that connects the TV to the wall outlet is damaged, the TV won't turn on. Try unplugging the TV, waiting a few minutes, and plugging it back in.
Check the T-Con Board: T-Con board is a small circuit board that connects the LCD panel to the main board. It could be malfunctioning, which is causing the image not to display.
Contact the manufacturer: If none of the above solutions work, it may be necessary to contact the manufacturer for further assistance, your TV may require repair or replacement.
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https://www.youtube.com/watch?v=kFdVi2ejfzA
May 8, 2014 - Uploaded by ShopJimmy.com
TV Repair Help for a TV With a Black No Image on the Screen ...Sign in to add this video to a playlist. ... LCD & LED TV Repair - No Image & Blank Black Screen Flashlight ... Easiest TV repair - How to Fix Power [TV turns off, freezes, or won't ... 1:26.Samsung LED TV Blank Screen & No Backlights Basic ...
? 1:49
https://www.youtube.com/watch?v=L9cjcsysdW4
Sep 11, 2012 - Uploaded by Roberto Ramos
TV screen begins to flicker then screen turns black while the audio continues to heard. I'm unable to see the TV Menu options when screen turns off. ... After turning the TV OFF then back ON again, the screen will flicker and then ... 1:26. Samsung LEDTV Repair - T-Con Board Replacement - No Picture on ...
Sounds like T'Con board fault. Check and replace it. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Your problem can be related to either LCD backlight inverter failure or T-con board failure. Please turn on your tv, darken the room and see if you notice a dull glow on the screen. If you see a dull glow then backlight is functional and the t-con is dead. Otherwise it can be a backlight inverter failure(in some cases the backlight itself). In that case I would try replacing the backlight inverter board and hope its not the backlight as the backlight is embedded into the the panel and the only way to replace it is to replace the panel.
There are two places to look for the problems, the backlight inverter board and the power supply. Look at the power supply first since it is easier to get to, look for burnt parts, bad capacitors, etc. http://en.wikipedia.org/wiki/Capacitor_plague Please post back what you find.
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