Question about Samsung LE40R74BDX 40 in. LCD Television

Open Question

TV is switching itself on/off, on/off. Does not get to a picture. No human intervention. Tried turning off from wall and then on again. Samsung LCD 40 inch. LE40R74BD

Posted by on

Ad

6 Suggested Answers

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

Ad

SOURCE: Samsung LE40R51B no picture but turns on

i have the same problem i was told by a repairman that samsungs are known for bad psu. and that its expensive to repair

Posted on Feb 05, 2008

Ad
  • 3 Answers

SOURCE: my samsung 40

This tv has issues with 4 capacitors. These caps can be replaced for about $10. They are located at the top right corner of the power supply. They will read 10v,1000uF. I had the same problem, then I replaced them wit 16v,1000uF capacitors. And presto tv!

Posted on Jul 19, 2009

  • 1 Answer

SOURCE: Samsung LCD tv - Turns on and off by itself.

Not sure if this is the same problem, but I just moved and set up my Samsung 40" LCD and it has been going off and on by itself with the worst yesterday every 2-3 minutes. After speaking with a friend of mine who is not in the Tv business but just has good common sense, I determined it was likely a bad power strip. The bottom line is I replaced the crappy power strip (which was fully loaded with all 6 outlets in use) with the higher quality one I had in the other room. The problem is gone. I suspect the power strip was failing or real bad quality........try plugging the tv directly into the wall outlet first. hope this helped.

Posted on Sep 18, 2009

  • 927 Answers

SOURCE: Samsung LCD 40 inch LNT4061

Howdy,
It sounds like you have a Power Supply Board problem. The PSB 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.

Thanks for using FIXYA, big IRISH.

Posted on Jan 02, 2010

  • 1 Answer

SOURCE: 3 year old Samsung 40 inch LCD TV will not turn on

The problem is 4 capacitors on the power supply board. Just had mine done under warranty. They (Sears) replaced the whole power board but you can get larger capacitors and just replace those for alot cheaper if not under warranty.

Posted on Jan 30, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Why does my Samsung LED TV have sound but no picture?


Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/

Apr 30, 2014 | Samsung Televison & Video

1 Answer

Tv won't come on tried all the trouble shooting ideas in book but nada


hi if you brought the tv in november might best to get in contact where you got it from ask them to send a tech out, you won't have to pay as it should be covered by the warranty good luck

regards
shaun

Jan 23, 2014 | Universal 40-42 Inch Flat Screen Panel...

1 Answer

I have a samsung hln507 and there is no picture. we start the tv, it has a high pitched whining sound, the fan and the color wheel are spinning, but there is no picture. after about 10 seconds the tv turns...


The colors wheel is dead.That why,u hearing high pitched whining sound.The colors wheel is spinning off of is motor axis and grinding it sides walls,that where the high pitched whining sound came from.Hire a tv Tech. for the colors wheel changing,because it requiring to take out alots of the machanicals parts itself,before u can come to the colors wheel itself to change it.

Oct 16, 2010 | Samsung HLN507 50" Rear Projection...

3 Answers

Samsung 50" DLP TV turns itself off


I had the same problem which also included the picture having streaks of red in it sometimes too. I found that both problems were due to the TV getting too hot inside. I bought a $7 small 4" fan from Walmart and pointed it at the back "door" of the TV (where the bulb can be replaced). Both problems have disappeared which I think is due to not letting the interior get too hot.

Not sure if there is an internal fan to cool the parts inside, but if there is it is not working well enough.

Jun 11, 2009 | Samsung DLP HL-P5663W 56" TV

1 Answer

Samsung dlp hdtv turns itself off


I worked on one of these for a few weeks. if you dont mind a little inconvenience you can remove the back lower cover and defeat the bulb door switch and it will run. the last one i had like this we could not find the problem even with samsung tech support. changed many parts in the mean time. its heat related but the lamp heat sensor in our case was not the problem.

May 04, 2009 | Televison & Video

1 Answer

My new LG LCD TV (3 days old!) suddenly started playing up, last night. I was initially using the receiver unit (with built-in DVD) to play a disc of MPG files, which it did successfully. Then, I tried to...


Good thing the tv is under warranty, theres no magical fix for a problem like this. I would either return it to the store or call for service. If you atempt to do to much to fix it you might voide the warranty, and you should have to do anything to fix it as you said its 3 days old.

Tim Nolan

Sep 24, 2008 | Televison & Video

1 Answer

Tv switches off


set goes on 20 seconds it goes off

Feb 24, 2008 | RCA TruFlat 27F520T 27" TV

1 Answer

Samsung rear projection problem


sounds like you may need a new lamp.about 150.00 to 200.00$

Jan 19, 2008 | Samsung HLN5065W 50" Rear Projection...

Not finding what you are looking for?
Samsung LE40R74BDX 40 in. LCD Television Logo

Related Topics:

169 people viewed this question

Ask a Question

Usually answered in minutes!

Top Samsung Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74243 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...