Question about Samsung LN40A550 LCD TV

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Ln40a550p3fxza My tv makes a buzzing noise then it shuts off then turns back on again. I cant turn it off with the remote when this happens. Please advise

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 610 Answers

SOURCE: 32'' Samsung LCD HDTV - will not turn on

needs power supply board replaced. VERY common problem, can call 1-800-samsung for nearest service center.

Posted on Dec 29, 2009

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jrweighing
  • 183 Answers

SOURCE: Turned the TV on this morning and it is making a clicking noise

I know exactly what the problem is. If you feel competent to do so..remove the back of the tv with the power disconnected for your safety. On the power board located in the centre you will see capacitors on the right of the board that have bulging tops..There are usually 4 of them that bulge (go faulty) like this..The value of each of these should be 1000uF..Replace these by buying from Maplins Electronics or CPC, both online..Solder new ones in (takes 10 mins) and all will be ok..

Posted on Feb 04, 2010

  • 55 Answers

SOURCE: watching tv last night, the

It can Have one of 2 Troubles, The Inverter Board is Defective or the Power Supply has bad Capacitors. I found 3 Capacitors known to go bad in that set. Replace the 10 Volt Capacitors with 16 Volt Caps and they will last forever.

Posted on Oct 08, 2010

  • 916 Answers

SOURCE: samsung ln40a550p3fxza power take long to turn

You need to determine the type of capacitor - Capacity (usually in uF), Voltage, polarised or non-polarised and physical dimensions. The capacity and voltage are usually written on the side and there will also be a band indicating the negative pin if it is polarised. Most electronics shops e.g. maplin can supply capacitors, or search on-line.

Posted on Feb 24, 2011

  • 8457 Answers

SOURCE: My Samsung HDTV takes almost

Tv have a power supply board problems.That the board where the tv power a/c cord plug into it.Take the tv aparts and check the tv power supply board carefully for dying and leaking components parts that are calling capacitors parts these capacitors parts are most likely bugles ups or puffing up onto it tops and leaking.These capacitors parts are dying and leaking that why it give the tv power supply board low power and long time to power up the tv.Have all the tools and know basic electronic also can do basic soldering work?Yes,than changes all these dying and leakages bulges ups capacitors components parts with the same Miro Fared and thoes voltages on the capaictors parts like 5 or 10 volts higher than those capacitors parts was in the power supply board u are replacing,these 5 or 10 volts higher rating will help these newly replace capacitors parts withstand heat better and last longer and the operation on the tv power supply board.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole new refurbish tv power suply board for the replacement.

Posted on Aug 19, 2011

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