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My polaroid hdtv model 2700 screen 27 inch, when i turn on the video screen on for a while, then it's shutting down by itseft, and i heard some noise from the back of the tv. thank.

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Hi,
The power-supply board needs to be serviced or replaced, the noise you hear is one of the switching transformers arcing contently. This could be from a cold solder joint along the AC input connections or a faulty switching regulator. This shouldn't cost much to repair at your local shop, or maybe you can do it yourself if so I'll walk you through what too do. Its important that your technically proficient to do it yourself otherwise have a professional do it for you.
http://tvtechwork.webs.com/

Posted on Nov 15, 2010

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Some time turn on some time don't, some time cut off by itseft


If the problem is same with different input devices and you have ensured the are no loose contacts in power outlet, RC jack, cable and sockets, the TV needs servicing.

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1 Answer

Hdtv 27" screen polaroid model 2700 , problem is


This is a classic "Hic-upping" switchmode power supply problem. The protection circuitry inside the SMPSU, has sensed a severe potential problem, and is attempting the shutting of the set, down to avoid a fire, explosion, or both.
This set had developed a problem, that is so severe that the set must be shut down, (This set should be removed from the Power),
What is happening is the internal "Fault" that is causing the Protection Circuitry , to detect the problem and attempt to shut down the set, keeps restarting the set, because as soon as it shuts down, the "Faulty" component(s) cool down?, and the "Fault" ostensibly "Clears" so the PSU starts up again, only for the component(s) to heat up, whatever, again and fail, so it shuts down, and if left unattended, this would continue on until the part eventually failed. As related this is called a "Hic-upping Power Supply". Any fault that involves the power supply is usually quite serious, and needs a professional, usually, unless one is familiar with servicing current day, televisions. It is the "Noise" that gives it away, among other things.
And in my professional recommendation, you should get a "Quote" for repair, from, an, Approved Service Center. Now, this point is very important for a good result, Always contact, their "Local" or a, "Head Office" Philips in your case. Ask them, for a referral to an authorised servicing center, where you ask for a "Quote". Now, when you get the information you want, then you can decide as to repair of replacement.
The reason we want an approved agent, is that way, all the engineers are trained on their own brand sets, they have seen almost all faults, and will get the job done quicker, and for less cost, and usually have parts on hand, also sometimes, there has been a service bulletin in issued and the repair may be subsided or even free. There are many, many, many reasons that display this symptom, one must work through the troubleshooting steps to isolate and identify, the Cause and repair that and any damage done.

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1 Answer

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1 Answer

My Polaroid HDTV, the screen turned blue i heard it was the capacitors but im not shure the model # is TLA-04841C and serial FR7B0215560001737 if you know whats wrong would you help me.


Might be the caps. Usually though you won't get any OSD-on screen display when it is the caps. Could also be the YSUS-Main.

Best regards and Semper Fi

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your t-con board has failed check shop jimmy/com see uf they have a replacement
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Element hdtv flx3210 shuts video off after a few seconds.


Send the set back for service.

The power supply most likely failed, or another circuit board has failed and the set is in the protect mode.

I would consider to see if the dealer would exchange the set for a well known quality brand name set and pay the difference.


Jerry G.

Jul 11, 2008 | Televison & Video

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