They fixed the problem, now it is . If not, it's more serious and will require a TV technician or replacement. 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. A television may have one or more power supply boards in addition to a T-Con board and several other internal components. So whenever I turn on my TV I see the Toshiba logo and then the screen goes black. I have all top notch HDMI cables also. It never happens when I'm watching TV just a DVD. This can happen once or twice an hour or once or twice every 5 minutes. But in this house I get a black screen every few minutes for a couple of seconds, then it starts again. We really can't afford a new tv. ok try this go to run type msconfig and startup tab uncheck everything and see if it still go blank. Is this the hdcp handshake, bad hdmi cable or something else? The TV goes blank for several seconds while watching cable, DVR shows and streaming video. Have you tried a different input? 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. Not sure what's causing it but it's bothering me … Did I touch a button on remote to cause the black screen. I did all of the usual troubleshooting, including trying a new HDMI cord. With HDMI, or component cables?Also, have you called your cable company to reset/refresh or update the cable box? It only goes to black for a few seconds and then comes right back on. FIX TV SCREEN THAT RANDOMLY GOES BLACK. After switching it on the picture flashes for a second and then the screen goes completely black. I have switched out the monitor for a new one - which worked for awhile but now has the same problem. The screen goes black at random times for 2 seconds or so and comes back and it is … She is an offsite user but I trust what she is telling me. Hopefully between the 2 I might get a good answer. Recently, lots of computer users complain that their PC or laptop screen goes black every few seconds: case 1. User Info: Sir_Bercilak The sound continues. 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. Also the black screen only happened every 30 minutes or so for about 1 to 2 seconds. THE PICTURE ALWAYS COMES - Answered by a verified TV Technician. I have a Westinghouse LCD TV SK-32H540S, 1 year old. Hi fogey0, You have one of the A series TV's and I have a B. Sandersito,I'm sorry to hear that you're having this problem. The sound continues. Then your video driver is most likly bad. I have written to Verizon about this-- but have not had a reply. If the monitor passes the Self-Test Feature Check (STFC), then … I am having the same problem with my ln52b750 and have a Samsung service guy out to my house. When I turn it on, the screen works for about 5 seconds, then goes dark. 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. 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. He replaced the motherboard and power supply but today I am still having the problem. 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. 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. I have also tried using various inputs on the TV and same result no matter which HDMI input I use. During the last few days, I get a black screen for a few seconds. I leaned towrad thinking it was the TV as it occurred with two different PVR boxes connected to the tv. Have you tried a different input? 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. 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. As far as I know the A series are the models that are having issues with the power supply. Coming home to a television that displays only a blank screen or a snowy picture can be incredibly frustrating. 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. TV Screen Is Black – Powers ON But No Picture. 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. Experts Exchange always has the answer, or at the least points me in the correct direction! The A/V cables are still working fine. I have a new Samsung PN63C8000 and also lose A/V on the HDMI connected source intermittently for 2-3 seconds. Infopackets Reader 'Tina' writes: " Dear Dennis, My monitor keeps going black. I guess I will connect a secondary component cable from the cab;e box and show that side by side with PIP. 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. anything we can do ourselves to fix this problem? When I turn it on, the screen works for about 5 seconds, then goes dark. When a TV screen is black and no picture appears, this can mean a few different problems. I have been having the same problem with my Samsung LED 46" UN46C6300SF I purchased at Best Buy on June 9, 2010. Any idea what might be the problem, and how to fix this? If you look very closely at the screen do you see the picture? I don't think it's a cable TV issue anymore. 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. 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. The user reported that her monitor "turns off" after a few seconds of being idle. Typically those would be a network related, or encoding issue. 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. 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! My Telus box says it can handle 1080p but there is an issue somewhere. Hello, In my laptop, my screen goes black after every few seconds. So far the swap out of the HDMI cable for A/V cables has worked for my system. In early 2021, CNET Forums will no longer be available. Answered by a verified TV Technician or replacement A/V on the TV goes blank periodically for 1.! Tips on fixing it 's capacitors look deformed or cracked tell me the. 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