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Nightrider455
Channel Surfer

Re: Onn Roku 70' TV Black Screen, what to do?

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It's the subpar power supply that is trash cheap Chinese components

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Nightrider455
Channel Surfer

Re: My tv randomly goes black for days but has sound

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Just to let you know it is the power supply it's cheap Chinese components power supply you can order another power supply on Amazon but you got to take up the part the TV to get the power supply out to get the number to order the exact same number

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CMB2
Newbie

Re: Onn Roku 70' TV Black Screen, what to do?

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It seems like this is an ongoing issue that they have to be aware of but won’t admit it. I have the same exact model and have had it for 2 years. Was sitting here watching football and then boom, black screen or death. Can hear everything. It’s not a coincidence that there’s soo many people having the same issue 2-3 years In. Onn Roku do better!! 

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RokuJechealR
Community Moderator
Community Moderator

Re: Onn Roku 70' TV Black Screen, what to do?

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Hi @CMB2

Welcome, and thanks for posting to the Roku Community!

We understand you have trouble with your Roku TV having a backscreen but hearing a sound. We want to learn more about this, but we need more details.

  • What model is your Roku TV? (Hisense, TCL, ONN, Select Series, Pro, Series, Plus Series, etc.)
  • When did you notice the issue start?
  • Are there any changes in the setup or settings of your Roku device or your network provider that might cause the problem?
  • Does the issue occur only on a specific channel while streaming or on all channels on your Roku device?
  • What troubleshooting steps have you taken so far to resolve the issue?

Please keep us posted on what you find out, and we'll continue assisting you from there.

All the best,
Chel

Jecheal R.
Roku Community Moderator
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BMH01
Newbie

Re: Onn Roku 70' TV Black Screen, what to do?

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Same issue100012588

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RokuJechealR
Community Moderator
Community Moderator

Re: Onn Roku 70' TV Black Screen, what to do?

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Hi @BMH01

Welcome to the Roku Community!

We understand you have the same issue as other users with a black screen on your Roku TV. Could you please provide the requested information mentioned above in this thread?

Once we have this information, we can examine this issue more closely.

All the best,
Chel

Jecheal R.
Roku Community Moderator
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naenae0599
Newbie

Re: Onn Roku 70' TV Black Screen, what to do?

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Today my tv did the exact same thing and I only had it for about 2 yrs and 4 months. I had my vizio tv for over 8 years and it was still working, but I wanted a more newer tv finally bought this one and it was good while it lasted. I do know one thing I will never buy another one of these tvs a waste of money.

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Mads69
Newbie

Re: Onn Roku 70' TV Black Screen, what to do?

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I have done this several times with it working for maybe a day. 

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Quashun
Reel Rookie

Re: Onn Roku 70' TV Black Screen, what to do?

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im having the same issue with my 65 inch onn as well. no damage still has the **bleep** plastic on the screen. we can hear, but the screen is black, and every once in a while we can get it to turn on an show a picture. this is crazy. I have tried the unplugging an waiting but nothing.

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Nightrider455
Channel Surfer

Re: Onn Roku 70' TV Black Screen, what to do?

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Well I would try to take the back off try to clean the connections that plug into the motherboard I think it has to do a lot with the motherboard or connections that need to be cleaned I cleaned all the connections on mine and mine seem to work just fine sometimes you can get it to work by rubbing or pounding on the back to bring up the static electricity that might be helpful

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