Question about Samsung LN40A550 LCD TV
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Posted on Jan 02, 2017
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
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
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
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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