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HDTV keeps shutting off randomly, shile the cable box is still on.

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Hello,
Power supply board have problems,just not dead yet.Replaced the power supply board,will solved this problems.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.
Good luck and let me know feedback...

Posted on Jun 03, 2010

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Posted on Jan 02, 2017

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TV keeps shutting of randomly , does it up to 15 times a day


You probably need to go to your t.v. settings and make sure your set is on channel 3. Make sure it's not a cable box problem and also call your carrier. A lot of time they will walk you thru all the things you can try to reset your system. This is why we pay a lot of bucks to have them do it over the phone

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HDMI is very prone to audio problems--the advantages of HDMI are just one cable combines all---Issue if using a box or only on certain channels could be coming from the box if used.

If using component connections and no problem at all-it likely is not the set.

HDMI sets sometimes require a software/firmware update to resolve issues here--if random it is going to be hard to resolve.

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its ur close caption either on the tv or the cable box

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how often does this happen ? is it tripping random

look at the power supply panel for dry joints especially around the transformers etc




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Change the box it will solve the problem.

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Black box


Go to your menu and turn off the closed caption

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1 Answer

Random flashing streaks on screen


Check multiple inputs and multiple sources. Check your dvd player; does it happen there? If not, you are probably right to suspect the cable box.

When you are checking multiple inputs, you want to make sure that if your cable box uses component or HDMI, that you check your DVD player on the same style input.

The reason for this is that your electrical chassis treats the analog (composite, s-video) inputs different from the HD and digital inputs (component, DVI, HDMI).

If you try your DVD player and cable box on the same input and experience the same probelm, you probably need to have the electrical chassis rebuilt in order to fix a problem on the tv's FMT board.

Cost: $800+
Wait time: 4-8 weeks.

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