Question about Sylvania 6727DF TV

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Turned off Since this unit has been relatively new it would turn off and we would wait days and keep trying to turn it on and sooner or later it would turn on. When new the technician told us to unplug the TV and let it reset then plug it in. It would start but only after days of waiting. Now it has turned off and won't turn on. Any fix on this??

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Greetings!
You have said that your TV is new, therefore it is underwarranty. Better not to remove or touch any parts of your TV that will cause more damage. Bring it to the center for check-up.
Thanks

Posted on Nov 05, 2008

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1 Answer

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At the risk of making you angry, did you verify that 1) it's actually plugged in, and 2) is it plugged into a wall socket operated by a light switch that isn't turned on? (I've actually done the later...Thought I was going to be bald! It was driving me nuts! I KNEW I had done EVERYTHING right, but it wouldn't turn on...Then I realized that I had plugged it into a socket that was also operated by a light switch...yup...turned on the switch...everything after that was LOVELY! Except me...where I kept kicking myself for not catching that sooner!

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There's a good chance you have failing electrolytic capacitors either in the power section or the inverter section or both.
Any caps in these sections that look bulged at the top, or bulged/leaking at the bottom (look for discoloration of the circuit board around the base of the capacitor) need to be replaced.
If you repeatedly turn it off and on, eventually it'll probably stay on, but every time you turn it off, the unit will get harder and harder to start up until one day it just won't.
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If you aren't tech savvy, don't worry, read the rest of this solution and watch the videos.

If you are handy with a soldering iron and can identify the power supply and/or inverter / FM section for the backlights, an inexpensive handful of capacitors will likely fix you right up.
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IE - it's not a bad idea to replace a 10V cap with a 16V or 25V or even a 50V, but don't replace a 680uF cap with a 500uF or a 1000uF (unless you are SURE it's only doing supply output ripple filtering,
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Most of the caps that go are 10V 1000uF or 3300uF.

I found some great videos of the procedure (for many Samsungs with the same issue) on youtube.

http://www.youtube.com/watch?v=Mm51C_RDIZE
http://www.youtube.com/watch?v=BNHHrgX_6cs&feature=related
http://www.youtube.com/watch?v=8l0AUj8QUkg&NR=1&feature=fvwp
http://www.youtube.com/watch?v=Y7b_nTaZYcU&feature=related

Backlight related video here:
http://www.youtube.com/watch?v=6XoF6QZ1dmw&feature=related

As you can see, this issue spans plasma TVs, as well as large and small LCD TVs and monitors, amplifiers, computer power supplies and motherboards, and other electronic equipment.
The parts are cheap, and skill required is minimal.
A great parts source is Digi-Key, and you can order the parts online at www.digikey.com
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The parts usually arrive one business day later.
If you watch the third video, you will see that even someone with no soldering experience can perform these repairs as demonstrated by the woman in the video.

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1 Answer

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This will sooner or yet later get worse as time moves forward why?

You have a power supply unit gone bad in this TV.. The reason why I know is this the capcitors I call caps would look swollen and would heat up to a point that the TV just looses power as the capcitors cannot hold any charge anymore as they are defective. If your SAVVY you can discharge the TUBE and fix the PSU buying the capcitors online and soldering them yourself on the power supply unit. check this website out for reference on how Caps look www.badcaps.com open up your TV and see if you got bulging caps if you do that is a major issue and it would need replacment. Thanks for using Fixya.com hope this helps please rate!!

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1 Answer

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1 Answer

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1 Answer

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