Question about Initial Televison & Video

Open Question

My 40"samsung led tv model ua40eh5000rxtw had a backlight problem and fixed it by replacing some LEDs,unfortunately when assembling it back i broke a corner of the led screen.

The tv worked fine for like 2 weeks with some coloured lines across the top of the screen,i guess due to the broken corner. it would display barely visible black lines on the rest of the screen and other times would display just fine.Now its not working,its turns on,the screen is backlit but there is no picture,it produces the initial sound when turning on and when switching off.when you turn it on the standby led blinks six times.the tv also turns itself off after a few minutes.please advice what is wrong.From some youtube videos,it could be either a bad t-con or main board am not sure what to do.

Posted by on

2 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

gopakumarg43
  • 73710 Answers

SOURCE: 2nd try see last sentences....lg led 32ln5310 tv, sound but no picture, no backlights, nothing visible on flashlight test, what should I replace? Main board, T-Con Board, Power Supply board or Leds

The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
Search the site by type in the "brand name" to your device; in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

Posted on Feb 10, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

I have a samsung 40 tv (un40j6200afxza), backlight leds stopped working I used a flashlight to check the screen and it works decided to go with repair kit I install everything and still no backlight.


Did you do the 2 year course to become a television engineer?

This is why they can replace only the parts that need replacing and fix the set in one go.

Just because the parts are available on eBay, doesn't mean they will work, as many are pulled from scrapped televisions..

Jan 13, 2017 | Samsung Televison & Video

1 Answer

LED TV - replaced power board but still no backlight? LED backlights do not seem to work.


yes the led backlight for whatever reason is not functioning and that is the root cause of your problem. Unfortunately to find a replacement led backlight is tough as the backlight is normally fixed with the lcd panel and has to match the voltage and all that stuff with motherboard. and if that doesn't match you might short the tv itself. this case is as good as getting a replacement lcd panel.

Feb 17, 2016 | Seiki SE50FY10 50-Inch 1080p 60Hz LED HDTV...

1 Answer

Samsung un40eh5000f led backlight don't work i replaced power supply and main board still no luck


Troubleshooting the Samsung LED TV Model UN32EH4003 ...

? 2:46
https://www.youtube.com/watch?v=2TImpsUnGtI
Jun 25, 2013 - Uploaded by George Droukas
Samsung TV troubleshooting, In this video you will be able successfully ... where can I buy the power supply board? the ledlight doesn't light up so it .... The second port was still fully intact but also not working, I was able to get it .... which turns onbacklight (BLU_on) and turns on the power supply (PS_on).

Samsung UN40EH5000 Review; 40-inch LED TV, (also ...

reviews.lcdtvbuyingguide.com/samsung-lcd.../samsung-un40eh5000.ht...
The EH5000 is Samsung's lowest end line in the larger size LED backlit LCD TVs for... 60Hz refresh rate doesn't handle judder sports programing and gaming as ... take advantage of the resolution, giving you more work space on the screen.

Samsung UN40EH5000 40-Inch 1080p 60Hz LED TV

www.amazon.com/Samsung-UN40EH5000.../B00723...

Amazon.com, Inc.Samsung UN40EH5000 40-Inch 1080p 60Hz LED TV (2012 Model) ... Samsung didn't advertise this (or maybe its just my TV), but I have absolutely NO BACKLIGHT BLEED...... Hope that helps you find the settings that work best for you. ..... Game Modedoesn't really do anything except make the picture darker and less ...

Jan 05, 2016 | Samsung 40-inch LED TV - UN40EH5000FXZA...

1 Answer

How do i fix a samsung lcd led tv burned out led backlights?


hi if its led backlit then there are strips of leds mounted within the screen assembly....each strip plugs in and you can test each strip by connecting 15-20v across each strip to see which does not light up...then replace that strip

Dec 30, 2015 | Samsung Televison & Video

1 Answer

How do i test a backlight for a led tv


Testing TV Backlight LEDs - YouTube

? 4:44
https://www.youtube.com/watch?v=eEJoPCa7Kt0
Jan 24, 2015 - Uploaded by swappart.com
... explaining easy way to test individual LEDs on a strip from aTV backlight. ... Sharp LC-60LE820UN TV - LED Strip Testing - Long Version ...

IT02 - How to Test LED Backlight - YouTube

? 0:55
https://www.youtube.com/watch?v=YmSI2N6BGPA
May 20, 2011 - Uploaded by LCDPARTS
How to use IT02 to test Laptop screen LED backlight.

LST04-TV, How to test LED TV screen - YouTube





Dec 26, 2015 | LG Televison & Video

1 Answer

Samsung LED TV (UN39FH5000FXZA) has audio, but does not have backlight. I replaced the power supply/ LED board with no success, could this be caused by the main board or the t-con board?


Hi Matt,
The fault lies with the backlight LEDs. It is common with these sets. If you open the panel and replace the failed LEDs, or replace the panei.
Good luck.

Dec 05, 2015 | Samsung 5000 Series UN39FH5000 39" LED TV...

1 Answer

How do I fix my Samsung 40 LED TV that has sound but no picture?


Samsung 60-Inch 1080p 120Hz Slim Smart LED HDTV ...

? 10:42
www.youtube.com/watch?v=hcVhHU322Gk
May 18, 2015 - Uploaded by Thomas M. Landry
samsung un60h6350 60-inch 1080p 120hz smart led tv,samsung... 120hz smart hdtv,slim led tv,65 inch smart tv deals,samsung 40 led 1080p 120hz ... LCD & LED TV Repair - No Image & Blank Black Screen Flashlight Test ...

Oct 15, 2015 | Samsung 40" 1080p 120Hz Slim LED Smart TV...

1 Answer

How do I fix samsung tv no picture just sound


Since you have replaced the LED board and you can still see a faint menu screen, this would indicate the LEDs have blown! Replace the backlight LEDs.

Jul 06, 2015 | Samsung UN39FH5000FXZA - 39in 1080p 240...

2 Answers

LG 50ln5200-ub led TV . Has no picture but great sound . What is the problem ? I did the flashlight test and can see the faint picture which tells me the backlighting is out . This tv model is a Black...


usually bad power supply, Where did you source your part? return/exchange it. Bad LEDs/ possible but not as likely, Tcon working if you can see images with flashlight. You must also have backlight on signal from main board ,check for 3 to 5v on labeled connecter on power supply. UPDATE---47" & 50" LN series. This model has had LED problems if your TV acts as described by Mr. Hughes in is answer to this problem you have bad LEDs

Feb 16, 2015 | LG 50 Inch LED TV 50LN5200 LN5200 Series...

1 Answer

Samsung monitor 2232bw plus backlight fade in black backgrounds scenes


Most common failures in these LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply C242 470uF 10V, C241 & C242 1000uF 16V, C261 & C319 680uF 35V failed as indicated in the attached picture, replace them at once.

If the power supply board is working then it is back light problem, first do a flash light test. If you can see the image in the flash light test, follow the steps how to test back light voltages: https://how-to-repair.org/repair/lg-tv-repair-manual-pdf/lg-led-tv-no-backlights-32ln5300-32ln5310-32ln5700-voltage-test-troub/2pyuXwNkBMA.html and follow the steps how to repair back light LEDs: https://www.youtube.com/watch?v=_poWTEihIJU Fix Led Backlights for TV or Monitor Lg Led Tv No Backlights 32ln5300 32ln5310 32ln5700 Voltage Test Troub Lg... Fix Led Backlights for TV or Monitor
samsung-2033sw-2233sw-ip-43135a-bn4400124s-power-board-dfydxumns33ohqc3bsmt22yf-3-0.jpg

Nov 07, 2013 | Samsung SyncMaster 2233BW 22" LCD Monitor

Not finding what you are looking for?
Televison & Video Logo

Related Topics:

29 people viewed this question

Ask a Question

Usually answered in minutes!

Top Initial Televison & Video Experts

Cindy Wells

Level 3 Expert

5062 Answers

The Knight
The Knight

Level 3 Expert

73710 Answers

mega_mind

Level 2 Expert

162 Answers

Are you an Initial Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...