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I HAVE A SAMSUNG LCD MOD# HLS-4051DX, PICTURE WENT OUT WHEN TV GET HOT, I REPLACED CAPACITORS IN POWER SUPPLY MODULE AND TV WAS GOOD FOR 3 WEEKS, NOW THE PROBLEM CAME BACK,ANY IDEA ABOUT WHAT CAUSE THE PROBLEM?

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If the replacement capacitors are going out then you have something generating a signal or source greater than designed for. Next thing to check is rms signal strength and resistors. When it got hot it probably had a resistor go high or out of spec. That will probably be the next thing to replace. Also check for bad grounds and cracked solder joints. I had one where the solder looked good on a ground trace but wasn't replaced just about everything and it got better but not fixed. Hit that one spot with an iron and it was working perfectly.

Posted on Aug 26, 2010

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1 Answer

When I turn on tv comes on then off with no picture.... after a few times of this I get a grainy picture.with a weird noisy... after a few times of this it comes on and the picture and sound are good


Hi,
You have to check and replace the electrolytic capacitor in the power supply board of you tv. some time bad electrolytic capacitors in the power supply can cause power on problems.
check the video too
Samsung LCD TV Power Supply Repair Capacitor Replace LN46A630
www.electro-medical.blogspot.com

Oct 20, 2015 | Samsung Televison & Video

1 Answer

Have sound but no tv picture


That model used the same power supply that the Samsung 940mw uses and when the capacitors go out you get sound but no picture just like you are getting. The repair is easy, you just need to replace the bad capacitors on the power supply board. Here is a link to the repair guide for the 940mw that should help you get your 910 back going, same power supply so the same repair.

http://www.ccl-la.com/blog/index.php/repairing-the-samsung-940mw-lcd-tv/

I hope this helps.

Jun 24, 2012 | Samsung SyncMaster 910MP 19" LCD Monitor

1 Answer

Samsung ln40a450c1d no picture on screen when pressing the channel button it blink only with a low grey look no sound or picture thanks


Good day!!!!


That problem is usually cause of faulty capacitors on the power supply board..

Just follow this instruction to fix your TV..

1. Open the back cover of your TV.
2. Look at the power supply board..Its normally connected to the power cord..
3. After that,,try to look at the actual image of capacitors if it is bulged on the top so that you can easily determine the bad capacitors..
4. After that,,try to replaced the bad capacitors using soldering iron and soldering lead..replaced the capacitors only with the same type ratings and value..
5. Some of the capacitors not bulged so its better if have a capacitance meter

Jun 05, 2012 | Samsung 460UX-2 LCD TV

1 Answer

Why is my Samsung LCD tv coming to picture so slowly? It is taking several minutes to come on in the last 2 weeks. What happened?


Tv power supply board is the causes and the problems.That the board where the tv power a/c cord plug into it.Tv power supply board have dying capacitors compnents parts are dying and leaking are alway bulges up or puffing up onto it tops.If u have all the tools and know basic electronic also can do basic soldering work too?Yes.These capacitors parts are dying capacitors parts must have to be replaced to fixed this problems.Or tries websites like Shopjmmy.com,Ebay.com to buy a whole refurbish tv power supply board for the replacemnt.

Aug 22, 2011 | Samsung LA40A450 40 in. LCD TV

2 Answers

Samsung LCD tv standby lite flashing on and off


Hello,

Your 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.
Good luck in solving the problem

Jun 26, 2011 | Samsung Televison & Video

2 Answers

Samsung 32" can not turn on


Dear Bradleyphan,

two weeks ago I fix samsung LCD TV with the same problem and I've managed to fix it.

I will explain how to:


  • Open the case of the LCD
basically in all LCD monitors have two circuit boards (power supply board and system board)
  • After you open you will see the two boards are

  • You see a board that has a socket for the power source. wrote that the board we're looking for (power supply board)
  • Remove all cables connected to the board and take out the board. (get noted before you unplug it)
  • Now you see it components on board, we looking for capacitor.(see picture below)
46ddc22.jpg

  • Looking for damaged capacitors, physically you will see a capacitor on the top like a bloated (see picture below)
7a91ba9.jpg
  • Replace the damaged capacitor with the same value that you can see on the surface of the capacitor. (In this step you need any soldering tool)
My advice: replace capacitors with higher voltage, like 10V replace with 16V or 25V will be fine.

Feb 01, 2010 | Samsung LN32A330 32 in. LCD TV

1 Answer

No picture on Samsung LNS4051D HD TV.


Maybe the backlight is out, can you see a picture when shining a flashlight on the screen. if yes you have either a bad inverter power supply or bad screen (panel).

Jul 24, 2009 | Samsung LN-S4051D 40 in. LCD Television

3 Answers

My tv has power but doesnt come on . It is a samsung 52" lcd less than 2 yrs old


The issue has been resolved. I removed the back of the TV (pretty easy actually) by laying a blanket over the kitchen table and placing the TV face down. I started with the power supply as an obvious beginning. Both fuses on the board tested fine. And touched up every solder joint with a hot soldering iron in case the problem was a cold solder joint. After this painstaking venture, I performed another visual inspection and noticed a capacitor that had a thin black X on the top of the can. This is a common sign the capacitor has over heated. I located a replacement for $1.20, installed, and successfully powered up the TV. I have had no problems since.
Oh, yeah, I also paid $120 for a BN44-00150A replacement power supply, plus overnight shipping. It actually arrived three weeks later. That was two weeks and six days after I fixed the power supply myself.
billdozier@gmail.com

Apr 16, 2009 | Samsung LNT5265F 52 in. LCD HDTV

1 Answer

On my sumsung lnt5265f 52 in hdtv lcd tv the power light indicator come on but no picture and makes clicking sound. HELP


The issue has been resolved. I removed the back of the TV (pretty easy actually) by laying a blanket over the kitchen table and placing the TV face down. I started with the power supply as an obvious beginning. Both fuses on the board tested fine. And touched up every solder joint with a hot soldering iron in case the problem was a cold solder joint. After this painstaking venture, I performed another visual inspection and noticed a capacitor that had a thin black X on the top of the can. This is a common sign the capacitor has over heated. I located a replacement for $1.20, installed, and successfully powered up the TV. I have had no problems since.
Oh, yeah, I also paid $120 for a BN44-00150A replacement power supply, plus overnight shipping. It actually arrived three weeks later. That was two weeks and six days after I fixed the power supply myself.
billdozier@gmail.com

Mar 02, 2009 | Samsung LNT5265F 52 in. LCD HDTV

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