Question about Samsung LA40R81BDX 40 in. LCD TV

1 Answer

My samsung la40r81bd tv is 3+ years old and has started to turn itself off and a second or 2 later turns itself on. at other times the time delay in turning off and then on is less than a second. is this a manufacturing fault? glendeen@bigpond.com thank you

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Samsung Master
  • 6,993 Answers

Hello,http://www.fixya.com/PostAnswer.aspx?thid=7543006&prdid=1252113&ref=unslThe 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.

This problem is more or less like a bad capacitor on the power board which is making the TV switch on and off
by itself.

I know of someone that had this same problem and the cause was because the capacitors used on the Samsung were only 10V and the welding was poor. The capacitor was replaced with 25V capacitor and re-soldered the bad welds. Now it's working normally again.

So you can check the capacitor on your TV's power board. Open the 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.

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.

If you don't know about TV repairers, take the TV to the nearest repairman to fix the fault for you. Also, note that TV stores a lot of current, so wait a while before opening the TV back cover.

I hope this helps.

Compliments of the season.

Posted on Dec 30, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Samsung UN55FH6003FXZA won't turn on even though the red LED on the front is lit showing power is available. It did have a long delay to turn on, now not at all.


Samsung TV won't turn on + blinking red light (explained fix ...

? 4:03
https://www.youtube.com/watch?v=wEWzYLaKdgU
Aug 29, 2014 - Uploaded by Mysimplefix
(CC) (HD) A step-by-step repair video, showing the replacement of swollen/shorted "electrolytic capacitors ...Missing: un55fh6003fxza
bout 1,270 results (0.53 seconds) Search ResultsSamsung LCD TV LN32A330 power won't turn on - Forums - CNETwww.cnet.com > Forums > SamsungCNETMy 1 1/2 year-old LCD TV model LN32A330 won't turn on by direct and remote today. The red stand-by light is lit, but never blinks and the TV won't power up. A..Samsung UN55FH6003FXZA BN94-06418R Main Board ...www.shopjimmy.com/samsung-un55fh6003fxza-bn94-0641...ShopJimmyThis Samsung UN55FH6003FXZA BN94-06418R Main Board IC901 EEPROM ONLY ... TV won't turn on after being off for 30+ minutes - TV shuts off by itself

Jan 05, 2016 | Samsung Televison & Video

1 Answer

Every time I turn my HD 1080 series Mitsubishi on 2 1/2 seconds later it turns off by itself


ok, a model number would be helpful but:

when set turns off and green power light goes out: on the front of the set press and hold both the menu and input (device) buttons at the same time for at least five seconds and let both go.

Power light will blink a two digit error code like 2 blinks, 2 blinks, a pause and repeat it for a total of 5 times.

This is the error code and indicates where the problem may be---let me know what code you find and I will tell you what it means.

SD TECH

Apr 28, 2012 | Televison & Video

2 Answers

61" samsung DLP 3 years old. Keeps turning off by itself.


Get a small but powerful used computer fan and place it in the TV to replace the defective old fan.That's the best way.The factory fans in these TVs don't last.

Sep 09, 2009 | Samsung DLP HL-P5663W 56" TV

1 Answer

Samsung lns4095dx/xaa after 30min the screen goes


The first place to start is with the Main bd. The second cause would be the T-con bd. Have a trained Samsung tech troubleshoot to find out and repair the set.

Jul 05, 2009 | Samsung LN32A550 32 in. LCD TV

1 Answer

Automatically turns off


I have the same problem and had a samsung technician come to the house. It was the Power Board and the main board. He gave me an estimate to fix and it was $529. I'm trashing the TV. Samsung sucks.

May 17, 2009 | Samsung LN-S4041D 40 in. LCD HDTV

1 Answer

Delayed signal to my lcd from the cable box.


It is not that rare to have a few secound delay but it sounds like yours has some componates that have gotten alittle hot at times and now take longer to come up if you haven't put a surge protector on it I would do so . To day with all the brownouts and power spike the newer units can not handle this couse of the componate being a lot smaller and as we put more and more ecectronic in our homes we create are own power drops the only way to help this in most homes is to use surge protectors.

oldgrizzly

Nov 11, 2008 | LG 37LC7D 37 in. LCD HDTV

1 Answer

52 HD Samsung tv turns off


I have the same problem with my 56" HD Samsung. It shuts off automatically and then on the power button the word Lamp is light up in green. Sometimes I can turn it back on but other times it won't and I have to wait a bit. It's been embarassing a couple times when people were over for a movie. I believe it might be some kind of overheating problem but would like someone to confirm this.

Jul 06, 2008 | Samsung DLP HL-P5663W 56" TV

7 Answers

SONY TV KEEPS TURNING ITSELF OFF!!


Its the BULB people! You need to change it every 3 to 5 years! I have had my sony 55" for 6 years... I had Best Buy come out 3 years ago, changed the bulb... it worked fine. Just started flasshing and shut its self off and back on again. Time for another bulb.

May 23, 2007 | Sony KV-28FX60 28" TV

Not finding what you are looking for?
Samsung LA40R81BDX 40 in. LCD TV Logo

528 people viewed this question

Ask a Question

Usually answered in minutes!

Top Samsung Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74136 Answers

Henry  Thomas
Henry Thomas

Level 3 Expert

1074 Answers

Jerry Greenberg
Jerry Greenberg

Level 3 Expert

1667 Answers

Are you a Samsung Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...