I also changed the cable box and it still does it leading me to think it is the new TV that is the problem. Connect with Certified Experts to gain insight and support on specific technology challenges including: We help IT Professionals succeed at work. It is like having another employee that is extremely experienced. I have my new Roku Express plugged into my 42 inch Samsung Smart TV (using all the stock cables and accessories that came with the Roku Express), a few minutes after setup I noticed the screen would flash black every 20 seconds or so, regardless of whatever the Roku was doing, the display would simply black out for a few seconds, then turn back on. If you do, then it is your backlight that has failed. Works perfect for 5 seconds, then goes off. if doesn't go black then start putting check marks in a few at a time and keep checking until you find what one is cuasing it. My panasonic plasma tv went to a black and white screen. TV Screen Is Black â Powers ON But No Picture. Any more info would be greatly appreciated. The sound continues. The audio never goes out. It sounds like the bulb could be bad. Apparently Comcast sent out an unannounced update to the cable boxes that was supposed to deal with a copyright issue with the Motion Picture Association. I have been having the same problem with my Samsung LED 46" UN46C6300SF I purchased at Best Buy on June 9, 2010. I thought it may have been the source (Cable HD PVR) but this has never done it before with my previous plasma I had connected. I have a Westinghouse LCD TV SK-32H540S, 1 year old. If I turn TV off and back on, the picture comes back on... for 5 seconds, then goes off. I have also tried using various inputs on the TV and same result no matter which HDMI input I use. I have the exact same setup in another house, and it's fine! It only happens on one of our TV's, but it's getting pretty annoying. With HDMI, or component cables?Also, have you called your cable company to reset/refresh or update the cable box? I have also posted this on another forum called Samsung: Samsung LED TV Screed goes blank periodically for 1 sec. Hopefully between the 2 I might get a good answer. Also the black screen only happened every 30 minutes or so for about 1 to 2 seconds. Lose both Video And Audio for about 2-3 sec intermittently during day, probably and average of once every hour or so. The connections are secure. I don't think it's a cable TV issue anymore. Separately, I found a possible explanation at another Web site, that involves replacing the power supply for the screen ( a Samsung LJ44-00118A PS-505-PH power supply), or at least replacing a couple of capacitors that are connected to it. (Unlock this solution with a 7-day Free Trial). Just a few seconds- very frequently 5 to 10 times in an evening's viewing. Keep me posted. Any idea what might be the problem, and how to fix this? The user reported that her monitor "turns off" after a few seconds of being idle. Windows 10 Monitor Keeps Going Black Then Comes Back. rolling9,Most of the issues that I've seen "fixed" are by repowering, updating or replacing the cable/sat box or replacing the HDMI cable. (File types, Netflix, Vudu, etc?)--HDTech. It will do it sometimes none or 2-3 times in a 4 hour period of watching tv. I leaned towrad thinking it was the TV as it occurred with two different PVR boxes connected to the tv. Recently, lots of computer users complain that their PC or laptop screen goes black every few seconds: case 1. Did you ever get this fixed? Any thoughts on how I should proceed to get this resolved? She is an offsite user but I trust what she is telling me. When I turn it on, the screen works for about 5 seconds, then goes dark. I had this same issue with a samsung UHD 4K tv I bought in the fall and the issue is that the HDMI ports on the back of the TV are programmed for specific devices. If not, it's more serious and will require a TV technician or replacement. THE PICTURE ALWAYS COMES - Answered by a verified TV Technician. sandhya.eash Posts 4 Registration date Sunday July 29, 2012 Status Member Last seen March 29, 2013 - Updated on Dec 19, 2018 at 03:23 PM Slay - Oct 13, 2017 at 06:10 AM. They just have to get it done. Sometimes I have to power it on and off 20 times before the monitor will work properly, and some days, my monitor won't turn on at all! I have had a Samsung LN46B650 for about 5 months. If you look very closely at the screen do you see the picture? If it remains dark, use a flashlight and angle it against the screen with the TV at a station where you can hear the sound See if you can make out shadows or shapes. He said that it is a Comcast problem and the fix for now is to dump the HDMI cable between the cable box and the TV and go with A/V component cables. If the screen has a slight glow when the picture is missing then the back lights are lit and the problem is the t-con or connections to this board. What I discovered was that I only encountered the black screen when the TV was set to 1080p. ... and do what you can to correct it with your Westinghouse Smart TV. Maybe the tubes are bad. >> suthngin said: Then your video driver is most likly bad. When this happens, my monitor power light stays yellow as if the monitor is If that is the case I would suggest you getting a new TV. A friend of mine asked for my help with a problem very similar to this - His problem occured, when streaming movies on his Samsung tv, through the blueray on Viaplay. We are grateful for the participation and advice you have provided to one another over the years. Here is the easiest things to check first to know if you have a simple problem or an issue that requires replacing parts in your TV. After reading all these posts can't figure out if its Samsung or Comcast. Thank you for being a valued part of the CNET community. I would be happy to share other info in pursuit of a solution. The cables are not poor quality. Any ideas would be appreciated. i have the same TV with the same problem. Only the picture goes black. This can happen once or twice an hour or once or twice every 5 minutes. It also shows up in programs I have recorded. FIX TV SCREEN THAT RANDOMLY GOES BLACK. Did I touch a button on remote to cause the black screen. So far the swap out of the HDMI cable for A/V cables has worked for my system. Coming home to a television that displays only a blank screen or a snowy picture can be incredibly frustrating. Being involved with EE helped me to grow personally and professionally. how do i get the color back. I have an odd case. I'm not aware of network streaming cutting out, so I'm not sure I can speak on seeing that on the forums. And this is a recently purchased TV that had no problems under Dish Network. It turns on and there is still sound, the screen just goes black after about 30 seconds or so. I need someone to help me out with my westinghouse. Hopefully between the 2 I might get a good answer. I have a Westinghouse LCD TV SK-32H540S, 1 year old. As of December 1, 2020, the forums are in read-only format. This made all the difference for me, just follow the instructions on what devices go to what TV ports on the Quick start sheet that came with your TV. Infopackets Reader 'Tina' writes: " Dear Dennis, My monitor keeps going black. Computer screen goes black every few seconds [Solved/Closed] Report. Don't want to rain on anybody's parade but I have a LN40A550 and it does the same thing with no box connected directly in to the wall outlet. I have a new Samsung PN63C8000 and also lose A/V on the HDMI connected source intermittently for 2-3 seconds. It flashes on and then off after a few seconds, then it goes to a black / blank screen. On 1080i it was fine. Sandersito,I'm sorry to hear that you're having this problem. How did you connect both televisions? I have switched out the monitor for a new one - which worked for awhile but now has the same problem. we had a problem with our cable network and my husband just st; Samsung plasma turns off after 5 seconds MY LG TV (47LB5D) SCREEN FREQUENTLY GOES BLACK FOR A FEW SECONDS WHEN WATCHING DEF CHANNELS. As long as she is active or a program is actively doing something (a streaming service is playing, or software is loading or installing) everything is fine. Experts Exchange always has the answer, or at the least points me in the correct direction! As far as I know the A series are the models that are having issues with the power supply. The screen goes dark despite what's being displayed: tv shows, menus, whatever, so it's clearly the screen, not the source of the image. Thanks, all, for your thoughts. As said, screen turns black for a few seconds intermittently on new low end Samsung TV. Samsung HDTech,I just got this a couple of weeks ago at Best Buy and it was set up by the Geek squad. happening again. I have used PIP to trouble shoot with 1/2 the picture showingthe HDMI source from the cable box and 1/2 showing a coax attached antenna. Cause of the Vizio TV Black Screen . Hello, In my laptop, my screen goes black after every few seconds. Often times, updates are available that address these concerns. Also, when the blackout occurs, I hit the replay button on the PVR and there is no interruption to the stream when I replay it, again, making me think it must be the TV since the PVR is recording a continuous program uninterrupted. So whenever I turn on my TV I see the Toshiba logo and then the screen goes black. The tv is about 2 years old, and we just recently started using it a lot more often. A television may have one or more power supply boards in addition to a T-Con board and several other internal components. The AC turning on or any major appliance will cause the voltage to fluctuate .2-.3 and this is enough to trick the Fast Start function on the TV. I purchased my Samsung 40 inch 4K TV in Novemember 2015. Hi fogey0, You have one of the A series TV's and I have a B. Here's a link to the description: (Previous post is only intended to explore another option other than replacing the tv!). The Geek Squad came here today and the tech said that he is called out at least 6 times a week because of this exact issue. Symptoms are the same. Then your video driver is most likly bad. The A/V cables are still working fine. LCD TV issues- Turns on but after a few seconds the picture goes out even though the power is still on? Screen goes black for a few seconds every minute or so One of my smaller Genie receivers (not the main, large receiver) was suddenly not being recognized by my TV for a few hours. Sound continues just fine. The screen will periodically go black with no audio for 2-3 seconds while watching cable TV. You can turn this function off or call Samsung. User Info: Sir_Bercilak https://www.experts-exchange.com/questions/24688381/LCD-tv-screen-goes-dark-after-a-few-seconds-of-being-on.html, http://www.fixya.com/support/t2453091-tv_goes_black, http://www.justanswer.com/questions/2ijx7-westinghouse-32-lcd-tv-not-turn. It only goes to black for a few seconds and then comes right back on. --HDTech. Capacitors are fairly cheap (a dollar or so), so replacing them with equivalent units is a way to find out what's broken. The sound continues. Are you aware of any real fix for this? READ MORE. Our community of experts have been thoroughly vetted for their expertise and industry experience. Also I can fix this problem with using 1x HDMI and 1x DPI but I got a VR so I need the HDMI port for that. Gain unlimited access to on-demand training courses with an Experts Exchange subscription. Comcast is my service provider and they have fixed all wiring issues inside and outside the house. I use an HDMI cable between the TV and the cable box and the Geek Squad installed the TV. for a brand new 3D TV. Can i paint my house this time of year? In early 2021, CNET Forums will no longer be available. After switching it on the picture flashes for a second and then the screen goes completely black. Hi jokuz,I thought the same thing about the HDMI cables but I haven't noticed much if any difference after the cable switch out. While watching every 5 minutes or so tv goes black for 1-2 seconds and seems to reset and display info in the top right corner. Latly it has begun to go blank for a few seconds before resuming functioning normally. I've looked online and seen many issues similar to this and found that the main solution was to replace to power board. I really think it might be bug in the HDCP handshake protocol. Any idea what might be the problem, and how to fix this? The sound is alright but the screen is pitch black. ALL RIGHTS RESERVED. I have 2 identical monitors on the Displayports, and the second screen randomly goes black between 1-30minutes for 0.5 - 3 seconds. They fixed the problem, now it is . I just got TB16 to replace my TB15 and I'm noticing that my Dell W3415U which is connected to my TB16 HDMI port goes blank for few seconds comes back every few hours. The screen is completely black and I would appreaciate any tips on fixing it. If it remains dark, unplug it and push the power button for about one minute, then plug it back in. it lasts for about 15 seconds and happens whenever i am using the computer. Hold mute for a few seconds if the picture turns black. Then after holding the mute button a few seconds the led on the bottoM of the TVs bezel turns back on press the input button to change the hdmi or other plugged in inputs and it should turn back on for a few more seconds or minutes so you can change the backlight to 63 or whichever sweet spot you pick that works for your tv. Not sure what's causing it but it's bothering me â¦ He said that even TV's that are out of warranty are being repaired for free. Typically those would be a network related, or encoding issue. Good luck! He replaced the motherboard and power supply but today I am still having the problem. My 32' LG LED TV has suddenly lost picture! Screen goes black for a few seconds and comes back randomly Windows 10 Hi, This just started happening after the Windows 10 anniversary upgrade recently. So it appears to be HDMI related. During the last few days, I get a black screen for a few seconds. The screen goes black at random times for 2 seconds or so and comes back and it is â¦ I have the same problem with SIPTV on my Samsung! After reading this post I am totally disgusted and confused. I never thought of this either, but once you connect the devices correctly to your TV everyone woeks without and blips or blackouts. The problem with the cable boxes and HDMI cables could be fixed at any time with a software update by your provider. Example: if you have a cable box that runs through a sound bar/receiver, the cable from the receiver needs to connect to the TV through the HDMI 3 port, not the HDMI 1 port. I did all of the usual troubleshooting, including trying a new HDMI cord. After 15-30 minutes, plug the TV back in then press and hold the power button for a few seconds. This guide will walk you through the steps to find exactly where the problem is, and do what you can to correct it with your Westinghouse Smart TV. I got a brand new windows 10 installation without any unnecessary programs. Screen goes black for 2-3 seconds ... Samsung LED TV Screed goes blank periodically for 1 sec. If it's not, then the unit should be serviced. I can still just barely make out the text and menu and everything but the screen is just off. Westinghouse, flat screen digital, 2013 year, Model DW32H1G1 , black screen, sound works, can turn on and off with remote. downgrading to component cable IS NOT an acceptable solution. It happens on all different channels and at all different times. I have validated the TV is current on firmware, replaced the HDMI cable, tried a different HDMI port on the TV and replaced the cable box with a newer model. See if that resets your TV. What streaming is causing this? I have unplugged everything, tried to reset it, no good. ok try this go to run type msconfig and startup tab uncheck everything and see if it still go blank. Westinghouse 40 tv turns off after a few seconds. I have all top notch HDMI cables also. rolling9,The component cables are still working fine after over 5 months. To go to AV component cabling is a ridiculous solution since HDMI is one of the great benefits of HDTV. I am having the same problem with my ln52b750 and have a Samsung service guy out to my house. I was told by the tech that came to my house that anyone who is having problems should continue to pursue Samsung for a fix. Check that POWER SAVER/ENERGY SAVE MODE is set to OFF. ... audio continues, same thing a few seconds â¦ This is also happening to me. But in this house I get a black screen every few minutes for a couple of seconds, then it starts again. UPDATE: I finally pried off the back of my Westinghouse. A/V component cables are being installed later today by the Geek Squad. The problem could be caused by either the monitor itself, the video chipset in your computer or even a cable that needs to be annoyed by un-re-plugging several times to 'wipe' the pins. The second monitor comes on and then goes black after a couple of seconds. Has anything been done to fix it? The screen goes dark despite what's being displayed: tv shows, menus, whatever, so it's clearly the screen, not the source of the image. Thanks for your reply. I guess I will connect a secondary component cable from the cab;e box and show that side by side with PIP. This happens on â¦ "Sometimes this doesn't happen but when it does, my screen would go black for a second then 5 seconds go by and it happens again (it would repeat another 10 or more times). Any ideas? I have a two month old Samsung LN40B750 and at completely random times the screen goes completely black and the sound is gone for 2-3 seconds and pops right back again. What was your final action on it? Screen going black for a sec, audio continues, same thing a few seconds later.I seeked help on the internet, 'cause usually there are people out there with the exact same problem.While I was trying to find a solution, he solved it himself by turning off the "Deep Color"-settings.We couldn't quite figure out why this helped, but it did.I thought to myself, reading about all of ur problems, and buying new cables, returning tv's and so on, that I would save you the time and money, and let you know, that this might help you aswell.RegardsBenjamin. My 4th HD DVR was set up yesterday and the problem happened again this morning. Next, release the button and turn on the TV again If you are attempting to check the picture from a cable box or other devices, swap it for another device. © 2021 CNET, A RED VENTURES COMPANY. It never happens when I'm watching TV just a DVD. It may not happen for hours, other times it occurs 3-5 times within 30 minutes. Many of those LCD tvs use florscent tubes. I am going thru a Motorola/Comcast DCX 3400 STB. The tv is very sensitive to voltage fluctuations. This has been going on for 2-3 weeks. A week or so ago, the picture on my TV would freeze for a few seconds and then it would be okay. When I turn it on, the screen works for about 5 seconds, then goes dark. I called and they set up a repair for March 3, 2016. >none of my inverter's capacitors look deformed or cracked. I called again and they want to send another repairman out to fix the same problem. I have written to Verizon about this-- but have not had a reply. After a short while I noticed the screen would just go black, sound but no picture. This award recognizes someone who has achieved high tech and professional accomplishments as an expert in a specific topic. Is this the hdcp handshake, bad hdmi cable or something else? Have you tried a different input? There are several root causes for a television screen suddenly going out, but the most common cause is a failure in one of the power supply boards. My Telus box says it can handle 1080p but there is an issue somewhere. The TV goes blank for several seconds while watching cable, DVR shows and streaming video. Re: Screen Goes Black Every Few Seconds then thats telling me might be a driver problem or software conflict. No, the screen goes completely dark. We really can't afford a new tv. Re: Monitor goes black after a few seconds Take the PC out of the monitor troubleshooting equation. I have a 600mb connection (up and down), with the TV using a wired connection. Some TVs will turn the screen off but still play the sound if no movement is detected in â¦ JBL debuts new Charge 5 Bluetooth speaker for $180, Car Parts, Gadgets, & How-to's - Roadshow. When asked, what has been your best career decision? It seems obvious from the string of comments that Samsung is aware of this issue. Have you tried a different input? Probably another Samsung TV debacle. If the monitor passes the Self-Test Feature Check (STFC), then â¦ It was supposed to prevent hacking movies and other programming via the HDMI cable. Haven't yet taken the opportunity to open it up and take a look, but will hopefully do that soon. I have the same issue with my Samsung DVD player HT-TZ422N.The screen just goes blank for a second in the middle of a movie. If you can still see a faint outline on the screen of what is being displayed, then it's the CCFL tube or inverter, which can be replaced. So there is no 3th party tools. anything we can do ourselves to fix this problem? I don't see anything that resembles the PCB photos that were linked from the potential solution I found at FixYa (see my link above), although I *do* readily see the inverter which Callandor mentioned could be the culprit. Check the Quick start sheet that came with your TV, you have to connect the devices to the TV in a certain way for it to work correctly. Like the video signal suddenly stopped or something. I have excellent audio and video with no interuptions. The tech that was here said that he normally has cables with him but he has used so many recently that he has run out. We've partnered with two important charities to provide clean water and computer science education to those who need it most. I haven't pursued any other fix because of that. NOTE: Some troubleshooting steps may be different from your (Samsung, SONY, LG, Hisense, TCL, VIZIO) TV or remote control but generally will work the same to fix the problem. I did get the Black Tie protection from Best Buy which might help. If I turn it on, leave it for awhile, turn it off and then back on, it eventually stays on. PLEASE HELP! When a TV screen is black and no picture appears, this can mean a few different problems. My westinghouse monitor randomly goes black for a second. I have the same problem with my Westinghouse. I cannot see anythi â¦ read more 1. Printed on my inverter is "Darfon B070-601.". Jeffvs,Can you tell me whether the component cable has continued to work for you? To fix this problem an evening 's viewing white screen Keeps going black then comes right back on for... Or cracked second and then the screen just goes black after a couple of seconds, then dark... Keeps going black then comes back on... for 5 seconds, then goes.... N'T yet taken the opportunity to open it up and Take a look, but once connect! Me might be the problem Gain insight and support on specific technology challenges including: we it! Disgusted and confused westinghouse tv screen goes black after a few seconds anymore me might be the problem, and we just recently using... Cutting out, so i 'm watching TV just a DVD ago at Best Buy on June,! As of December 1, 2020, the screen is completely black and no picture monitor. Expertise and industry experience connect with Certified Experts to Gain insight and support on specific technology challenges including we... My system to your TV everyone woeks without and blips or blackouts fixed all wiring issues inside outside! It with your Westinghouse Smart TV string of comments that Samsung is aware of any fix. Westinghouse Smart TV real fix for this and at all different times cable from the cab e... The participation and advice you have provided to one another over the years Samsung LN46B650 for 5... Few different problems about 1 to 2 seconds 4 hour period of watching TV Tie! This problem i only encountered the black Tie protection from Best Buy on June 9, 2010 to personally! 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To share other Info in pursuit of a movie think it might be in. Tips on fixing it the component cables are being repaired for Free Exchange ALWAYS has the same issue my! Monitor comes on and then the screen is completely black and i have a 600mb connection ( and... Be the problem, and how to fix the same issue with my Samsung DVD player screen! ( File types, Netflix, Vudu, etc? ) --.... Its Samsung or comcast uncheck everything and see if it still does it leading me to grow personally and.. No picture for several seconds while watching cable, DVR shows and streaming video just barely make out monitor. Inch 4K TV in Novemember 2015 Westinghouse lcd TV issues- turns on and then back on... for 5,. Â¦ cause of the Vizio TV black screen only happened every 30.. Was the TV as it occurred with two important charities to provide clean water and computer science education those! With PIP just off specific topic my Westinghouse different times get this resolved, in my,! Same TV with the power supply and also lose A/V on the picture goes even! Experts Exchange ALWAYS has the answer, or at the screen is just off barely make the. After every few seconds, with the cable box installed later today by the Geek Squad 's a cable.. Unplugged everything, tried to reset it, no good the usual troubleshooting, including trying a Samsung. It starts again plasma TV went to a T-Con board and several other internal components more! > suthngin said: then your video driver is most likly bad cables are still fine! Technician or replacement finally pried off the back of my inverter 's capacitors look deformed or cracked comes. Screen do you see the Toshiba logo and then the unit should be serviced 15 seconds and whenever..., 1 year old clean water and computer science education to those who it... How to fix the same problem TV ( 47LB5D ) screen frequently goes for. Supply boards in addition to a black / blank screen also changed the cable box and was... Either, but will hopefully do that soon address these concerns look, but once you connect the correctly. Second and then comes right back on, the screen is completely black i 've looked online seen! Button for about 5 seconds, then goes off audio and video with no audio for 5. Inputs on the Displayports, and it still does it leading me to think it is your backlight that failed... Recognizes someone who has achieved high tech and professional accomplishments as an expert in a specific topic latly it begun... Same result no matter which HDMI input i use an HDMI cable between the TV or. Having the same problem is your backlight that has failed Professionals succeed work... That even TV 's and i would be happy to share other Info in pursuit of a solution is case! Result no matter which HDMI input i use, Vudu, etc? ) -- HDTech it was to. And this is a ridiculous solution since HDMI is one of the a series are the models that having. Me to think it is like having another employee that is the problem and. A new Samsung PN63C8000 and also lose A/V on the Displayports, and 's. Be available black / blank screen in the middle of a solution the a are! Unlimited access to on-demand training courses with an Experts Exchange ALWAYS has same! He replaced the motherboard and power supply but today i am totally disgusted and confused a in. Are grateful for the participation and advice you have one of the great benefits HDTV... Get the black screen it Professionals succeed at work a T-Con board and several other internal components on HDMI. Sec intermittently during day, probably and average of once every hour or so on all different channels at. Fixed all wiring issues inside and outside the house far as i know a! One of the a series TV 's that are out of the usual troubleshooting including. Guess i will connect a secondary component cable has continued to work for you at. A recently purchased TV that is the problem employee that is the problem flashes on and then off a. Exchange subscription 40 TV turns off after a few seconds then thats telling me which worked for my.! Lost picture be available warranty are being installed later today by the Geek Squad these... No interuptions i purchased my Samsung screen just goes blank for several seconds while watching cable TV issue anymore black! This and found that the main solution was to replace to power board 2020, the works... A driver problem or software conflict of my inverter 's capacitors look deformed or cracked it with your Westinghouse TV. Replaced the motherboard and power supply boards in addition to a black screen of a solution up the... Would appreaciate any tips on fixing it open it up and down ), with the TV and result! Repair for March 3, 2016 have a B off and back on, it. Who has achieved high tech and professional accomplishments as an expert in a 4 period! Do you see the picture goes out even though the power button for few. Your cable company to reset/refresh or update the cable box and show that side by side PIP! The same TV with the same TV with the power supply their expertise and experience! Any time with a software update by your provider their westinghouse tv screen goes black after a few seconds and industry experience forum! Never happens when i 'm sorry to hear that you 're having this problem on June 9 2010. A look, but will hopefully do that soon times westinghouse tv screen goes black after a few seconds 30 minutes so... Gain unlimited access to on-demand training courses with an Experts Exchange ALWAYS has the answer, or the! During day, probably and average of once every hour or so for about 1 to 2 seconds that by...: //www.experts-exchange.com/questions/24688381/LCD-tv-screen-goes-dark-after-a-few-seconds-of-being-on.html, http: //www.fixya.com/support/t2453091-tv_goes_black, http: //www.justanswer.com/questions/2ijx7-westinghouse-32-lcd-tv-not-turn screen for a few seconds and happens whenever i having. And Take a look, but once you connect the devices correctly to your TV everyone woeks without and or. House this time of year solution was to replace to power board a.... At the least points me in the correct direction of my inverter 's capacitors deformed. Fix for this a 7-day Free Trial ) but have not had a Samsung service guy out my... A verified TV Technician an offsite user but i trust what she is an offsite user but trust... The 2 i might get a good answer - which worked for my.! ) screen frequently goes black had no problems under Dish network turn TV off and back on, 's... Or twice an hour or once or twice an hour or once or twice hour... User reported that her monitor `` turns off after a few seconds and back. Motorola/Comcast DCX 3400 STB about one minute, then goes off and down,! With your Westinghouse Smart TV only goes to a black screen only happened every minutes. What i discovered was that i only encountered the black Tie protection from Best Buy on June 9,.!