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Troubleshooting the Samsung LED TV Model UN32EH4003

October 12, 2019

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  • Reply Overcome Diversity April 14, 2014 at 11:49 pm

    Why does this particular model suffer from automatic shut-offs. No timer was set, yet the TV shuts off all by itself. Why?

  • Reply Joshua Higgs June 14, 2014 at 12:58 pm

    Hey George,
    I have the un32eh4050fxza and it will not power on and has no standby light. I have already changed the power supply and has done nothing(wish I would have seen this video first). What do you think my problem is more likely to be? I was thinking main board or IR sensor / power button.
    I would be greatful of your assistence and any others help too.
    Thanks all,

  • Reply 01000010 01100101 June 20, 2014 at 2:37 pm

    I have this model TV and lost power during a firmware update. TV makes power up sound when you try to turn it on but there's no picture. how do I go about resetting or reloading the firmware to correct this, or is there some other more simplistic way?

  • Reply George Droukas June 25, 2014 at 4:32 pm

    Today's televisions are not designed to work with external speakers, the audio amplifier inside the television does not use a common ground and the impedance of the speakers is very important.
    We do not recommend modifying the audio circuit because this can damage the main board, we all knowthat today's televisions are not designed for top quality sound do to space limitations and recommend using an external audio amplifier, take the line audio output from your cable or satellite box to drive it.  

  • Reply Vincent Ross Jr August 12, 2014 at 5:36 pm

    Hey man great video, I was wondering if you had any on the same model for a greyish, video. I can still see the menu, and the channel slightly but its like the screen is very faded. I have went back to default on all the video settings its definitely something else. Thoughts?

  • Reply jkb2163 September 10, 2014 at 9:45 am

    Hey George, I have the UN32D4003BD.  I mistakenly installed the wrong firmware via USB. The TV powered down and never booted up. The Red LED  stand by light. comes on and remains solid (does not blink ) when the tv is plugged in. But it will not power on it is unresponsive to touch panel power button and remote control… Any Help would be Great !!!  Thanks in Advance 

  • Reply George Droukas September 10, 2014 at 12:16 pm

    Good morning, The main board will need to be replaced since the wrong firmware convoluted the microprocessor, this model uses numerous main boards and in order to order the correct one get the part number located on the barcode sticker from the actual board, this should start with BN94-xxxxx and search for it at
    Best regards.

  • Reply Carmine Petrangelo September 17, 2014 at 7:06 pm

    I have that model Samsung.  I had a lightning strike and no power and no stand by light, nothing.  I did that test for the main power board you did in the video and still nothing.  How sure can I be it is the power board?

  • Reply George Droukas September 17, 2014 at 7:43 pm

    If you follow all steps and the panel it's no coming on then the power supply needs to be replaced first, since lightning hit the unit there is a possibility the main board may also be bad. 

  • Reply jkb2163 September 18, 2014 at 11:58 pm

    Hey again, So i ordered the new MB. I found it on ebay with a return policy for 30. bucks and  free shipping.  Which I thought was pretty good, since everywhere else it was final sale and upwards of 60.bucks plus shipping . I will Comment back to let you know how it goes thanks again for the help = }   would it be a good idea to hold onto the original MB ?    I also have another samsung its a LN37A450C1D. I got it from a friend that was going to toss it.. everything functions great except for the color.  the picture is off, like solarized or polarized… how can i check the calibration before i go and buy a new t-con board ?

  • Reply lennox willis November 16, 2014 at 10:36 pm

    hey my picture is solarized how do i fix? i dont know if its the t-con board or settings changed

  • Reply Dumaine Slade November 18, 2014 at 4:03 pm

    We have UN32EH-4003F. Has sound on all inputs no video. Someone mentioned main board, so I found one on ebay. Same problem. Could I have received a bad main board from ebay, or is it another issue like the small narrow board under the screen which connects to main board with ribbon cable?

  • Reply George Droukas November 18, 2014 at 4:23 pm

    Does the panel light up? to verify follow the troubleshooting instructions on the video, you may have a bad power supply or a bad LED panel.  

  • Reply B L November 21, 2014 at 2:16 am

    What if it plays melody with that wire plugged in and mini led blinks. Then i unplug that plug and i get nothing?

  • Reply George Droukas November 21, 2014 at 2:00 pm

    With the plug removed there is no power applied to the main video board, with the plug removed the panel should light up if the LED's inside the panel are ok and the power supply is working, it sound like you may have a bad power supply or a bad panel.  

  • Reply Dre's Gaming December 10, 2014 at 1:02 am

    Hello,I'm Dre I'm having Trouble with this particular model
    Tv.When I power the tv on a grey box pops up saying "Main Board has Changed.Please go into service mode and setup below options – Type, Local Set,Front color option.Also my tv blinks every few seconds could you please help me resolve the issue.

  • Reply Rae Nell Hunter January 7, 2015 at 7:06 pm

    I have a Samsumg UN40F6300 that will not turn on.  Red light on front blinks twice for 5 times.  I did the test in the video and the led lights flicker and the electric plug seems to not be seating properly.  Holding it down doesn't seem to matter.   What next?  New cord? New power board?

  • Reply Masters of the Universe January 10, 2015 at 7:11 am

    Hello, I have a Samsung LEDTV UN32EH5000FXZA, few months back the display suddenly went black, sometimes it flicks and shows picture for a second. The display back light is just dead. Powers up fine and we can hear the sound on back. What do you think is wrong here, and how can we fix it. Thank you so much.

  • Reply Rae Nell Hunter January 27, 2015 at 7:44 pm

    I've been meaning to post and thank you for your help.  First of all this video actually covered the troubleshooting procedure I needed when others just showed how to replace power supply.  Second:  you actually answered my question (below) so I could isolate the problem.  Third:  after searching the internet to find the part I actually bought it from you because unlike others, you had in stock and your price was very reasonable.  Lastly, it arrived in 2 days, and worked like a charm.   You are the best.

  • Reply Brandon Harrelson January 29, 2015 at 3:25 am

    I have this same model and The other day I was moving my TV from a different room and stupidly didn't remove the HDMI cord and it got snagged on a door knob and ripped out breaking the port it was connected to. The second port was still fully intact but also not working, I was able to get it somewhat working but when the TV got moved too much it stopped. The USB for media was still working. I didn't test component.

    So I ordered a replacement main board and got it today and switched it. But the HDMI ports still aren't working. They're both perfectly intact and the board is functional but still nothing. The USB works as does component (but there's no audio). I've tried to factory reset and it didn't work. Is there anything I can do or is the problem with the other board or one of the cables?

    Some help would be greatly appreciated.

  • Reply jonathan hajmi February 11, 2015 at 1:23 am

    Hi, i have un32d5500 of samsung. I have flickering issue. I read that some people cut jumper 852. Can you tell me if that does work with my model?

  • Reply Jay Connor February 12, 2015 at 3:37 pm

    Ok replaced the control board and still jot working. Has power leds light up on power board test. Relplaced control board and still have just lines and misplaced colors no visable picture.

  • Reply Ashy Dave April 10, 2015 at 10:07 am

    Hello, I have Samsung UA46f7500BR tv which flickers every second or so when I switch on the 3D mode. Works perfectly fine in 2D mode. I've reset it to factory settings but that didn't make any difference. I called up a technician and he said the motherboard would have to be changed, which seems like an overkill solution. I saw a video that suggested snipping a jumper to get rid of such a flicker but that was another TV model. Can you recommend any solution? Thanks.

  • Reply George Droukas April 10, 2015 at 3:06 pm

    It could be your 3D source signal or a bad main video board. I apologize, can't be more specific without troubleshooting the television further.

  • Reply EL DURO April 11, 2015 at 5:13 am

    Are you serious? That is the trouble shooting for this tv, I have this model tv and some shop wanted to charge 80.00 bucks just for trouble shooting. I will do this and if thats the issue then I will buy the part from your site, thanks for the video you've just save me 80 bucks. The problem with my TV is that there is no picture, there is a ON light and sound but no picture.

  • Reply Bullet175 May 13, 2015 at 2:40 am

    Okay I have the same TV un32eh4003f and I did the troubleshoot like you did and the lights did not come on. I'm just wondering if it's the power board? I'm asking because the TV turns on and it has sound but the screen is black.

  • Reply Marlon Walters May 28, 2015 at 2:17 am

    Hey great vid,my Samsung un32eh5300f has sound and picture(I used the flashlight test) but no backlights,I was wondering if you could help me figure out the problem

  • Reply Nick Russo June 3, 2015 at 4:30 am

    I have a samsung model no. UN32EH4003F. I couple of nights ago I was watching a movie and all of a sudden the screen started flickering over and over and finally the screen got really dim. I checked all the settings and everything was fine, there is just no backlight at all. And I went through all the troubleshooting steps and I can only see light through 2 holes of the panel when just the power supply is active. Can I snip one of the jumpers to make it work or is it something else? Thank you.

  • Reply Kyle Ray June 4, 2015 at 1:27 am

    so my house got hit by lighting, on this unit, the red light on the front by the power button is lit but when i hit it the tv doesn't turn on…any thoughts? i have a newer unit that got hit as well and the red light on that is not on…thank you

  • Reply Jared Andrews August 4, 2015 at 10:25 pm

    My Samsung TV is blank but I can still hear sound

  • Reply RED DAWG WOODSHOP August 9, 2015 at 5:11 am

    Good video George.  However, I have a Samsung UN60 with a switching power supply and I have a question.  Does the UN32 here have a switching supply?  On the 60 I have two inputs from the main board to the power supply which turns on backlight (BLU_on) and turns  on the power supply (PS_on).  So if I unplug the main board, I should not be able to turn on the backlights as you have done in this video.  Im hoping that the UN32 power supply is different or my troubleshoot is bad.   My problem is that as soon as you plug in the tv, the backlights and power led start blinking on and off at about 1 Hz.  It never turns on; just sits there and blinks.  It does this with or without main board plugged in.  If I unplug backlight plug from power supply the tv will turn on and will respond to on/off button and remote.  Im thinking that I have a bad power supply but also wondering if I have a bad power supply AND bad backlights.

  • Reply Fanta Molango August 20, 2015 at 3:00 pm

    My TV was turning on and immediately off when I would plug it in.  Thanks to this instructional video I was able to repair my TV for $25. I did the test just like he explained and got my problem solved.   In my case the BN44-00554B LED LCD Power Supply Board Unit Motherboard was malfunctioning.  Thanks for providing this video it saved me from having to buy another TV.

  • Reply Mike Speegle August 25, 2015 at 11:58 pm

    I have a Samsung un32eh5300f smart tv it has sound but no picture, but if you have the right amount of light and look just right you can vagly see some parts of a picture (but mostly just black ) any help with this would be greatly appreciated.

  • Reply Robert Preston October 1, 2015 at 5:23 pm

    I have the exact same tv and have done the troubleshooting as you described in your video. When I plugged in the tv, the LED lights did not light up. Does that mean the power supply board is bad? Thank you in advance for any help.

  • Reply Peter Lacson October 3, 2015 at 7:19 pm

    You mentioned that the main control board needs to be replaced since the power supply board is working. You did not mention anything about the T Con Board that connects to the main board. ( black L film ). I see on my TV the board is located between the two speakers. Is there a possibility that this is not working? can this be replaced? My TV is fairly 2 years old and I hardly use it. Please help. email address [email protected] Thank you

  • Reply Jason Brown October 17, 2015 at 3:00 am

    Mine is coming on for a split wsecond, making a startup sound, and then going off. Is this a power board failure? All of the lights in this video are NOT on when I attempt to turn the unit on.

  • Reply Alex Garcia October 19, 2015 at 10:52 am

    My TV turns on but all it shows up is white light like the whole screen goes white any help is greatly appreciated !!!!

  • Reply Ivan Gonzalez December 23, 2015 at 8:05 pm

    where can I buy the power supply board? the led light doesn't light up so it seems its a power supply issue. I was wondering if you can make your own power supply board.

  • Reply Federico Ayup December 26, 2015 at 2:17 am

    water came into the bottom of my 4003 and got a shortcut in one of the flexes, where can i buy a panel replacement? thanks

  • Reply Ebenezer Scrooge December 26, 2015 at 2:18 am

    Ah thank you… TV troubleshooting has never been easier. My DLP is a hassle sometimes but not really difficult either. I'm glad parts are made modular, just switch'em out by hand and done deal… unlike scary CRTprojectors and CRT Boxes… yikes…

  • Reply Jim W January 20, 2016 at 2:22 am

    Hey George I have a Samsung LN40D630M3fxza and the power just shut off while watching tv. I have looked at the caps and they look ok. sometimes the red power light is on but looks dim. I tried the diag as per this video and if I unplug the main board all of the lcd lights DO turn on….. Do you think its a mainboard issue or Power board issue????

  • Reply Mr. Roboto January 31, 2016 at 6:14 am

    I have one of these tv's un32eh4003fxza in your video. My back light would not come on. There are four wires on the top right of the power board that I think power the light. I have two positive and two negative coming out. I discovered that one pair of positive/negative wires are not getting power for some reason, but If I cross over from the other pair that work then my back light turns on. Does this mean that there is a bad part on the power board? Is it ok to keep the working pair of wires crossed over to power the pair that don't work so I can keep the light on?

  • Reply Iorgulescu Gabriel February 14, 2016 at 12:44 am

    @George Droukas: Hello sir. I have a led tv 32EH4003 and it seems i have a burn-in problem with my screen. I had the same image displayed like 2-3 hours and now that image is there all the time like a ghost image. How can i fix this problem??? Thanks.

  • Reply Kemi Kago March 12, 2016 at 9:00 pm

    i am trying to take the back cover of but the bottom left corner isnt coming off

  • Reply Traci Taylor April 15, 2016 at 9:22 pm

    hello, I have model number UN40H5003 and right after I turn it on the tv starts flashing. like a strobe light. what can I do to fix this issue and how?

  • Reply Shawn W. May 8, 2016 at 5:58 pm

    If the LED only flash on as I plug the power board in, is that faultiness from the power board? The TV endlessly starts up.

  • Reply George Droukas May 8, 2016 at 6:13 pm

    Hey Shawn, I'm afraid that the actual LED strips are bad inside the panel.

    TVTECHparts team

  • Reply John Ludwig May 20, 2016 at 12:15 am

    thanks for the vid..i have this exact TV. I was watching it yesterday when it suddenly began to power off & on.. like someone was pranking me with the remote from somewhere. So, I did this test you recommended, disconnected the main board from power board and then plugged the TV back in. It flashes on and off every half second or so. Would replacing the fuse possibly be a fix? Also, I noticed a C9A component is slightly raised/puffy on the top. Very slight but noticeable. Another video recommended looking for these signs. Thanks!

  • Reply George Droukas May 20, 2016 at 12:27 am

    Hello, The part that's raised on top is a capacitor, this part is bad that's why the screen goes on and off.

  • Reply Lenny John May 27, 2016 at 3:29 am

    So before to day I had the same problem as John but I left the tv on during a storm and lighting struck and will not turn back on. I tried what you did in the video but the back lights don't come on. So should I have both problems checked out?

  • Reply George Droukas May 27, 2016 at 12:25 pm

    Possible blown power supply since it was hit by lightning, one way to verify that is to observe the power on light with all connection in place.

  • Reply Efe Can May 30, 2016 at 8:17 pm

    I've a SAMSUNG – Series 4 UE32EH4000 32 inch TV, till last night it was working fine, we switched it off and today it's not turning on, I've checked the power cable and re-inserted it as well but no luck, the power socket is working fine as we know from plugging in other stuff so the issue seems to be with tv only, no light comes on in the tv when we turn the switch on, it just remains dead, doesn't respond to remote as well. Can you suggest what could be the possible cause of it? and how can we go about fixing this issue?
    Thank you very much in advance!

  • Reply Barry Brisley June 14, 2016 at 10:15 am


    I have a samsung un40f6300af tv. When I turn the tv on I get the red blinking light that keeps flashing two times, two times, two times.
    I took the back off the tv as in your video. I didn't notice any bulging capacitors on the power board (BN44-00645D). I disconnected the main board and turned the tv on. The panel on the TV flickers. It turns on and off repeatedly.

    Not sure if this is a panel, led backlight, power, or main board issue. any idea what it could be?


  • Reply karem elkayar June 29, 2016 at 1:48 am

    I have the power cycling problem where my tv turns on and off very often. I searched your products and you dont have UN32EH4003 parts, you only have UN32EH4000.. what do you think the problem could be & how can I fix it?

  • Reply Wendy Tinkham July 4, 2016 at 3:59 am

    My son has this TV. It keeps changing from red to blue to green to gray, etc. Any ideas? We have tried everything that I could find on the internet, but nothing has worked.

  • Reply Sammie Locklin September 4, 2016 at 2:51 am


  • Reply Marcyo Santos September 28, 2016 at 1:56 pm

    samsung tv un55d6000 LED flashes and does not care. this problem at source is to mida one tip

  • Reply coolmodine October 18, 2016 at 10:42 am

    Have a bad panel. Tab bonds are shot. The one thing that can't be replaced… sigh.

  • Reply crimsonking842 November 16, 2016 at 12:20 am

    Tank you. This video was very helpful.

  • Reply Theo Kosnikowski November 22, 2016 at 12:59 am

    I have a black screen with a UN32EH4003F. replaced the power and main boards & power switch, have a steady standby light which doesn't respond to remote or button. As shown in this video with just the power board connected the LED panel lights up. Any suggestions?

  • Reply Joanne Kustenmacher March 16, 2017 at 1:57 am

    Hi my UN50H5203AFXZA has blurry top 3 or 4 inches of top of the screen. Anyone know any fixes? Or what be wrong with it?

  • Reply Kasper Zukowski April 15, 2017 at 5:56 pm

    Hello George, thanks for posting these videos. My UN32EH4003 powers on (makes a chime sound and the red light comes on) but the screen is dark. I still see an image if I shine a flashlight on it. I would think that indicates a bad backlight correct? But because this is an LED backlit model, can the backlight be replaced? What are the chances of this being the correct solution? I would appreciate your advice.

  • Reply Manuel Vargas July 31, 2017 at 11:16 pm

    I have a black screen with a UN32EH4003Fyou could still see little of picture, my led light is black, if I press the power from the remote the led flash red what it could be

  • Reply Shawlon Fernandes August 7, 2017 at 6:46 am

    I have 24 inches Samsung l
    ed tv I have a problem to put on the TV Red light is blinking but tv is not switching on Wat is the problem please help me

  • Reply Manuel Vargas August 7, 2017 at 10:28 pm

    I got a new power supply still don't turn on if I follow your step I got not light on the led …. but!!!!! if I connect the 1 and 2 from the led plug in the power supply I get light in the leds plus picture please let me know what else I could try my volt in that plug is 3 and 4 I got 17.2 and in the 1 and 2 I got 167.5 this is from the upper plug in the power supply that connect to the leds

  • Reply Rajesh Dash November 11, 2017 at 11:03 am

    hi sir my samsung UN32EH4003 tv is not getting sw on. bt when i opened it as per ur instruction remove cmm 803 and connect the power supply no back pannel light is switch on. so i suspect power supply board.suggest me find out the fault and make my tv serviceable.

  • Reply Bradford Frotten March 21, 2018 at 6:01 pm

    Nice video Goerge, thanks

  • Reply Tony D April 11, 2018 at 6:28 am

    the sticker says there's risk of electric shock. but as long as it's unplugged…when I remove the back cover…I should be ok right ?

  • Reply Gojko Radanovich April 17, 2018 at 5:11 pm

    I have Samsung TV UN 39FH5000 FXA that don't have backlight also when plugged in power stand by light flashes 6 times. I was measuring voltage on wires to backlight and got different reading when main board connected to power supply board reading goes to zero, but when main board disconnected, reading is 193V on connector D+ but when I measure voltage on wires from mainboard to power supply board voltage is as noted on power supply board. can you please advise what to change to fix it?
    Show less

  • Reply Harrahshow June 3, 2018 at 3:56 am

    good and straightforward diagnostics

  • Reply Stephanie YARKWTFGO August 29, 2018 at 4:52 pm

    What year was this tv made

  • Reply Devo October 30, 2018 at 10:57 pm

    Does changing out the power supply on this model fix constant restarting of the TV problem I can see the picture and then it restarts it will keep doing this until amplug the TV from the wall


  • Reply Jon L December 22, 2018 at 12:31 pm

    What happens if the lcd light comes on for a few seconds and then powers off and they cycles that way

  • Reply Carmine Petrangelo January 5, 2019 at 10:09 pm

    I bought a power board from you 4 years ago.  It worked fine.  I have a new problem.  The TV is turning on and off on its own.  When I plug it in it turns on then in a few seconds it turns off, then it turns on again and then it turns off again.  I tried a number of different things but nothing works.  The TV plays well with no other issues.  When I first started doing this it would sometimes stay on for a while then turn back off and then come back on.  I have heard it could be a compasserter but if it is I would just buy the board itself, whichever one is a problem.  My TV is the same one in your video model UN32EH4003. I have tried just about everything else.

  • Reply Dont taze me Bruh May 18, 2019 at 1:27 am

    I did this test and the led did not light up, so whats my next move? Pls help thx

  • Reply Jayanta karmakar June 30, 2019 at 5:09 am

    My samsung LCD TV model UN32EH4003 having picture problem, black & white picture. I am finding help, lps help

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