Samsung Tv

remove the back and check for capacitors on the power supply that has the top puffed up slightly. If you find any, replace them. These parts (capacitors) are available at places like Radio Shack. you can either replace them yourself, or take the power supply board and the capacitors to a local TV shop and they will likely charge $20 to replace them for you. The power supply is the module that the AC cord plugs into, and the value of the capacitors is printed on the side. Normally the bad ones are rated at 10vdc-16vdc and they could be 1000 to 2200 microfarads. These capacitors will look like a cylinder with a silver top. Google bad capacitors on LCD HDTV and you will see mass data.

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TV Dan

There is info being disseminated that Samsung has finally started doing a one time capacitor fix on the power supply for sets exibiting your sets symtoms. I would have like to have known this a year ago when mine went out. I was glad that I could fix it myself. Good luck!

Hi,

I will be happy to assist you with this question.

The issue you describe is consistent with a power supply board issue.

This is the board where the AC goes to.

I do not think it needs replacement,rather some defective capacitors are causing this issue.

Open unit up and take a look at the power supply board.You will probably see one or more electrolytic filter capacitors that are bulged up in the top-not perfectly flat like the others.

The value of these capacitors will be different,most likely they will be somewhere around-820 to 2200uF/25 V( or /10V sometimes)

You can replace them with same values but I would recommend the voltage rating to be higher(like 35V for an original 25V) for reliability purposes.

What happens is,these bulged top capacitors will cause a low and unfiltered DC voltage=main board will malfunction(the relay will keep clicking until the caps are holding enough charge to bring the voltage up over a threshold point).

You can buy these capacitors at any Fry's or Radioshack store or you can order them online at vendors like "mcmelectronics.com"(look for electrolytic capacitors).

After replacing these capacitor(capacitors) most likely the normal operation will be restored.

Please note:

There may be also some other causes for this symptom ,like a defective T con board ,or main board,but the bulged top capacitors are the most common cause for this issue.

If no bulged top capacitors are found,then the tv will need to be troubleshooted by a professional.

Here is a link that may help you find some tv repair shops in yours area:

http://www.yext.com/tvrepair/

 

Attention!-before servicing unit,please leave the unit unplugged for aboutXXXXXall the capacitors will discharge and there in no more danger for electrocuting.

Now,I do not know if you plan on repairing this issue yourself,you will need some electronic background and some soldering equipment,in order to replace the defective filter capacitors.

If you are not comfortable to perform this kind of repair ,then I estimate the charge for this kind of repair to be somewhere between $100-$130.

I hope this helps,

Creds to: Expert: euro-pro llc