"The sound was still on so I … TCL No Backlight, Black Screen, Flashlight Test Good, Menu Sounds Good I have a 55” TCL Roku TV (55S405TNAA) that was working fine, then the next time it was turned on has no picture. Sure enough, the TV screen was black again after the restart, even without another update. After the tv has been on for a while it will repeatedly go black. I have this same problem except for one minor detail. I purchased it from Best Buy (at Sanford, Florida) around November of 2018. Contacted customer support and their solutions did not help. I will assume that you have a flatscreen TV and not a CRT based one for the answer here. A lot of people have reported experiencing a black screen with the sound working. Clicks are audible when adjusting the volume or navigating the menu. So here we go: I have a Samsung - 75" Class - LED - NU8000 Series (UN75NU8000FXZA). You are not alone in this. this TV was 3 … Just to try something, I set the Roku display choice type to 1080p instead of Auto Dectect, then restarted the Roku stick via its menu. Before the show starts the screen goes black but has sound. Your TV might be working well then all of a sudden, the screen goes completely black. Sorry for asking this. Have never had a problem. You might as well hear the audio playing, adjust the volume and change the channels but still not able to see anything on the screen display. A black screen can be caused by a number of problems: 1. The tv goes black but still have sound. Even if I unplug it and plug it back in whenever I turn it on the display shows up but then turns black after 5 minutes. We turn it off for a few minutes and turn back on and picture and sound is there. Hey, guys. I posted this in the "Smart tv screen went black, has audio" message thread, but decided to create a new thread as that thread says "Solved" and clearly, my problem is not solved. Your TCL Roku TV is a smart TV with a simple, intuitive interface and the built-in ability to stream content over the internet, watch live TV with an antenna, and access connected devices like a cable set-top box or game console. I was thinking about a software update. The Roku TV uses different "channels" (more popularly referred to as apps) that can be added via the Roku Channel Store. Black screen on Samsung TV I turn it off and on till I have picture and sound. Just had my TCL 55' screen go black have sound tried all the procedures to fix to include reset button. Upon turning on the tv, it flashes "TCL ROKU 4K" (tried a factory reset and it didn't work) for like .2 seconds and THEN goes black. My tv is a Toshiba and it works fine for about 5 minutes then the screen goes completely black, but the sound still work. If the TV standby light goes of when they press power, can they hear sound? If they can, ask the customer to press the MENU button on the remote. Defective LED or strip of LEDs that provide the “back light” for the picture. Monday I went to the home screen, selected my streaming channel, selected my show. My tv went black but still have sound and everything that said so what I do next 06/15/2019 by tyreshiajones323 my screen goes black (sound stays on) at unpredictable times and I can play with it (on and off and back and forth to Smart TV function) and it comes back on. "My children were sitting and watching TV and it all of sudden went black," Angela, of Anaheim, California, told ConsumerAffairs.com. As with yesterday's update, only powering the TV off and on would fix the black screen problem. I have a TCL Roku smart tv. 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