Question about Samsung Touch of Color LN52A650 52 in. LCD HDTV

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I have a samsung ln52a650a1fxza lcd tv. it turns off and on continuesly i replaced the power supply board and the pc board still having the same problem

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 2318 Answers

SOURCE: Samsung LN-S4051d power supply board

The replacement of the power supply is quite easy. You will have to remove the base if applicable and the back cover, once you remove it; you should see the power supply.
Click here to see how the power supply looks like and availability or Click here to find a cheaper one.

I can also repair your power supply. If you need further assistance you can write to jah2mil@hotmail.com

Posted on Jan 05, 2009

Cool_dud 09
  • 206 Answers

SOURCE: power supply board

Hai,
Please check on here....you will find it out!

Posted on Aug 23, 2009

  • 13 Answers

SOURCE: 37"scott lcd tv power supply

Hey gessneruk, remember the one you and I were working on saturday that had no +24V? I got it up and running!

I had lost +24V on my power supply (Megmeet MLT386) and found F2 on the power supply blown out (3.15A). This was caused by a shorted QA2/QA2A (both are 9N50C FET transistors) After replacing these it still did not work, I found that four .47 ohm SMT resistors at R233 through R236 were blown open, I replaced them with a single .1 ohm 2W resisitor, I also had to replaced transistor QF1 (marked 2X4). After replacing all of these components, I restored the +24VDC and the tv.

Posted on Sep 15, 2009

  • 927 Answers

SOURCE: Samsung model LNT5271f excessive relay cycling before full power

Howdy,
Yes, it is very easy to repair. Solder iron wattage should be at least 300 w.

The PSB is the center Board (towards left) after you remove the back off the TV. Remove the shield that covers the Boards and remove Board from TV with the 6-7 screws. Replace capacitors CM852 & CM853; 2200ufd 25volts.

Good Luck, big IRISH.

Posted on Dec 28, 2009

Testimonial: "Great fix"

  • 927 Answers

SOURCE: Which Replacement Power Board for LNT4665F Samsung LCD TV?

Howdy,
It would be a lot cheaper if you just replace the two caps that have gone bad. Just get a cheap solder pencil from the store and about an inch of solder and you are in business.
The Power Supply Board is the center Board (towards left) after you remove the back off the TV. Remove Board from TV with the 6-7 screws. Replace capacitors CM852 & CM853; 2200ufd 25volts.

Thaks for using FIXYA, BIG IRISH.

Posted on Jan 02, 2010

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Check the LVDS cable !!! It is the cable that supplies the video signal from the main board to the LCD controller. If wiggling the cable clears up the problem or invokes the problem, you need a new LVDS cable!

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Hi,

power supply board is dead, u know basic electronics' and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Take care in solving the problem....

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hi,
you have to replace the inverter board. If the invereter board overloaded the powers supply, then the tv will go to standby after some time.
ok

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When I turn on my Samsung LE46F86BDX LCD TV it click's for some time. After about 2 minutes the TV starts playing normal. Afterwards you can turn off the TV and back on again. The TV starts normal....


This problems very common on a LCD tv.It the tv power supply board,have bad dying capactors,these capacitors are alway bulges or puffing up on it tops.That the board,where the power a/c cord plug into it.U have all the tools,know basic electronic and can do basic soldering?Just check the power supply board,for those dying capacitors that bulges or puffing up on it tops.Replaced these dying capacitors on the tv power supply board,ur tv will power up normal again and have no more clicking sounds and will not take anymore 2 mins or more to turn it on.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

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Power Supply Board for SAMSUNG 40" LCD TV Model LA40R81BX


You'll find some Samsung power supply boards here : http://www.usefulparts.com/index.php?main_page=index&manufacturers_id=11&sort=20a&filter_id=98&alpha_filter_id=0
but you have to open your TV first and find out model number

Apr 02, 2009 | Vizio L32 32 in. LCD HDTV

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