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Constellation

Re: Black screen periodically

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My TV model is QE55Q9FNA

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Samsung Moderator
Samsung Moderator

Re: Black screen periodically

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Thank you for this information. This forum is for the support of US products and customers. As your product is a non-US model and support for these models is very limited, please seek a support team for your area. You can do so by using this link: http://www.samsung.com/visitcountry


Be sure to click " ✓ Accept as Solution" when you find an answer that works for you.

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Constellation

Re: Black screen periodically

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To be honest with you I am getting a second issue where my tv turns off and on. Please see videos below.

 

1. Black flickering screen and loss of connection to HDMI.

https://youtu.be/lYMzkr8Xj3s

 

2. TV switching off/on after being on for most of the day.

https://youtu.be/v-CCKtYnCIg

 

 

TV does this after being on for 5-6hrs. The only way to stop this from happening is to pull the power cord from the One Connect Box or unplug. Fault after 1y...
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Constellation

Re: Black screen periodically

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Tried to update, but no updates available. 

Update version: 1294

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Constellation

Re: Black screen periodically

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I'm an AV project manager. I sell hundereds of displays every year. Jan 2019 we purchased the un75nu8000 for my livingroom. May 27th 2020, after several attempts to replace every part in the display multiple times to fix the "Black screen of death"... They are FINALLY replacing this display. I have been a huge fan of Samsung for years but this is a complete disappointment... This line all together has been nothing but trouble. Having to always set up your HDMI ports evertime you plug a device in? Even if its the same device in the same port? Come on!! Save the device settings within the port!!! The fact that not all display mounts come with long enough screws to reach the back of the display. Now I have to send a tech to Home Depot to look for screws... I will say, I am probably going to get another Samsung. And I still have customers that love the brand. But come on...

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Astronaut

Re: Black screen periodically

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Hi,

Looking for help with un55ks800dfxza.

Picture faded to black and then screen went to all vertical line display.

Do we need a new motherboard?


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Samsung Moderator
Samsung Moderator

Re: Black screen periodically

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That is a possibility, but a technician would need to diagnose the issue and make sure that it is actually the board.  If that's a process you would like to move forward with,  feel free to send me a private message: http://bit.ly/2ihPL97


Be sure to click " ✓ Accept as Solution" when you find an answer that works for you.

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Asteroid

Re: Black screen periodically

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Hi, me again, I FINALLY figured out the solution. In external device manager, turn off anynet HDMI CEC, and in eco solution, turn off auto power off. All my black screen problems are solved.

 

I still do recommend getting a high quality HDMI cable as mentioned in my pinned answer, but if any of you want to try this out as a quick fix, Im hoping and believe it'll work for a good chunk of you.

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Constellation

Re: Black screen periodically

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Hello, I have a brand new 50" 7 Series smart TV. UN50TU7000FXZA. The TV will be fine and then I will power on the TV and all i see is a black screen with sound. I then unplugged the TV and HDMI cable from the Dish Network Hopper and waited. I powered it up and it was fine. After turning the TV on and off a few more times, I had the same thing happen with the black screen. Turning the power on and off did not correct the issue. Also, when turning the TV on while it was working, occasionally it tell me that i had to turn my Dish box on, but it was already on. This occurs across all sources. Any idesa before I return the TV.

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Samsung Moderator
Samsung Moderator

Re: Black screen periodically

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When your TV has a black screen even when it's on, it's quite possible it could actually be your external device and not your TV. If your TV is connected using a One Connect Box, there are a couple of extra steps to troubleshoot.

 

  1. Tv without the one connect box has no picture

·Press the Home (Menu) button on the remote.

  • If the menu appears, the TV is powered on but is either not on the correct source or not receiving a signal.
  • If the menu does not appear, the TV may be having power issues. 

Confirm the TV is set to the same source as the external device.

  • For instance, if your cable box is connected to HDMI 1, set the TV source to HDMI 1.
  • If the TV is set to the correct source, but there is still no image, unplug and reconnect the AV connections one cable at a time, from both ends of each cable. If there's any damage to the cable, it will need to be replaced.

Test the HDMI cable.

  • To perform the test, make sure the TV's source is still on the HDMI setting for the cable you want to test, and then navigate to Settings > Support > Self Diagnosis > Signal Information > HDMI Cable Test > Start Test.

Test different external devices.

  • The final thing to rule out is the external device you're using. Try connecting a different device, or using a different source port. If you were unable to test the cable in the previous step, then try swapping the cable, too.
  • If the TV can display a picture in any other setup, then you've ruled the TV out as the cause of the issue. Keep trying various setups until you identify the device or cable that is not working, and troubleshoot or replace it.

If there is still no picture, use the following link to find a list of service centers near that can do the in/out of warranty repair. http://www.samsung.com/us/support/service/location


Be sure to click " ✓ Accept as Solution" when you find an answer that works for you.

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