Samsung LED Flat Screen TV Repair - Won't turn on, no power - How to Fix

Fixing a Samsung UN4H5203AF that was hit by lightning and won't power up.
#howto
#tv
#samsung

Пікірлер: 598

  • @souparmsbarraza7206
    @souparmsbarraza72063 жыл бұрын

    He's giving out a whole lotta knowledge if you know what you're looking at here. Thanks for the helpful information Mr. Uploader

  • @helenedufour1540
    @helenedufour15404 жыл бұрын

    Thanks so much for the video. By following your troubleshooting advice, I managed to fix our TV today. I found a main board for less than £5 on eBay, and that did the job perfectly. It's thanks to people like you that we can prevent (almost) perfectly working item from going into landfill. Please keep doing what you do.

  • @sergiosandoval2078

    @sergiosandoval2078

    Жыл бұрын

    Where do You get Tha Main board

  • Ай бұрын

    Top man this guy the best on yourtube...

  • @neutrodyne
    @neutrodyne4 жыл бұрын

    Nicely made video and the voice is very good with no annoying background music. For a retired technician like myself, he really didn't say much other than just replace the board. Most likely there was a short on the bad board pulling one of the supply voltages down. However, I would have found which line was low when it was all connected up and then try and run the short down. Sometimes the shorted part will even get hot if left on for a short time and then you can go to it. There is always the possibility that if it was hit by lighting that there could be numerous problems with the bad board. Having said all of that, sometimes to save money and headaches just doing what he did on this video is the best way to go. Tring to repair a surface-mount board can at times be a headache.

  • @Electronicle

    @Electronicle

    4 жыл бұрын

    Thank you. Yeah. The part was cheap and just easier to replace and get it out of here

  • @eugeneoreilly9356

    @eugeneoreilly9356

    Жыл бұрын

    Would agree,more time than its worth.

  • @EdmondYee
    @EdmondYee2 жыл бұрын

    I wish I had found this video last week. If I had known I could do that trick with turning the backlight on by unplugging the harness from the main board, I could have saved some money by not ordering the power board. Great video

  • @memorywarrior8752
    @memorywarrior87523 жыл бұрын

    Here was me thinking that I would have to get out a soldering iron, when all I have to do is have a spare power board and main board for every TV ever created :-)

  • @theewelder

    @theewelder

    2 жыл бұрын

    shop jimmy has both of them for EVERY TV....used them years ago for another tv i found..........WAITING FOR A NEW MAINBOARD FOR A 43 INCH LED lg tv....works awesome minus both hdmi,s are shot......$35 here friday....30 minutes ..done...rather have hdmi to my pc...then to ethernet cable only....smart tv,s are not as smart vs hooked up to a pc....fact...

  • @418garcia

    @418garcia

    Жыл бұрын

    Man dude I was thinking the same thing

  • @A_Class216
    @A_Class2165 жыл бұрын

    I didn't realize this was a huge problem. Thanks for the info

  • Ай бұрын

    This guy makes sence others don't, Massive Respect keeping it simple knowledge is power...

  • @owenobrien4942
    @owenobrien49424 жыл бұрын

    Thank you for this, carried out your checks and found my Samsung tv has a faulty power board. Replaced with a secondhand one of the internet and back up and running👍🏼

  • @brandonstandinger6671
    @brandonstandinger66715 жыл бұрын

    Thank you. Your videos are extremely helpful, informative and excellently put together. An extremely good service to those learning about tv repair and electronics in general. Atta Boy! Keep up the good work.

  • @Electronicle

    @Electronicle

    5 жыл бұрын

    txs man...appreciate it

  • @frankreiserm.s.8039
    @frankreiserm.s.80394 жыл бұрын

    If a PCB is dropping the power supply voltage down to 0V, or, as in your case, causing the TV to seem to be turned off when plugged into the power supply, then there is probably a short. Replacing an SMT board is the most common solution to this problem, as you have shown. If you wanted to find exactly what component was shorting, pour 90% isopropyl alcohol over the board and, under low power of a stereo microscope, see where the alcohol dries up the fastest. The component on which the alcohol evaporates the fastest is the shorting component. Now, you can order a replacement board, substitute the shorting component from the board you ordered, and keep the board that you ordered, plus the board from the TV, as extra boards from which you can harvest replacement components for future TV and electronics repair jobs. Frank Frank Reiser Video/Audio Service

  • @kendom33

    @kendom33

    11 ай бұрын

    A flir type camera is very useful

  • @cvx23231
    @cvx232315 жыл бұрын

    GREAT HELP, Thank you!! Video really stood out for the detail and explanations offered,!!

  • @mikefuqua5321
    @mikefuqua53215 жыл бұрын

    Thank you. I was told that without the indicator light on the lower corner wasn't on then you have no power. So you need to get a power supply board to start with. I got ahold of your youtube instruction and found out it was the video board. Very helpful. Thanks again.

  • @crazydoglady5

    @crazydoglady5

    4 жыл бұрын

    so it wasnt the power supply board?

  • @Mikee535
    @Mikee5352 жыл бұрын

    Thank you for your very helpful video I had a 2022 Samsung TV that would not power up. Found out the fuse on the power supply was blown. First I disconnected the main board, unsoldered fuse from the top of the board. Put in a temporary fuse and that blew immediately. Found a board on eBay for $40 and that's on the way.

  • @clarkcharles4967
    @clarkcharles49675 жыл бұрын

    your were great, just fix my un75ju6500fxza , was watching tv screen went green then black, but I still could hear sound. watching your video, gave me the wii to try, its working mainboard.. thank you

  • @leonjohnsonjr3331

    @leonjohnsonjr3331

    3 жыл бұрын

    Backlight problem

  • @chaloogoh4155
    @chaloogoh41554 жыл бұрын

    My TV got hit by lightening I watched ur video n am impressed I will go through it as u said n get back to u thanks

  • @PlanespotterBE
    @PlanespotterBE5 жыл бұрын

    I'm in the exact same situation.. got a philips 55pus 6401, died on me after lightning strikes . Of course it's just 3 months outta guarantee. . I've replaced the power board today, but still nothing. Replacement motherboard on the way,I'm hopeful it'll power up after seeing this vid, which is v informative, v useful, subscribed.

  • @sirdon9304

    @sirdon9304

    5 жыл бұрын

    Wat is the outcome of your motherboard replacement,I have the same tv as you replace both boards an still got nuttin

  • @PlanespotterBE

    @PlanespotterBE

    5 жыл бұрын

    @@sirdon9304 all working now. got a donor TV, same model with broken screen dirt cheap- and took the parts out of that, direct swap with mine and it's all working fine now. Not sure how yours still isn't working, you got no standby light / ambilight/ Philips logo showing ?!

  • @mr.tuckers2848
    @mr.tuckers284810 ай бұрын

    Really easy to follow troubleshooting guide. Thanks for sharing. Our tv that’s less than probably 5 years old has died. Bought at Costco but since everyone abused the return policy by upgrading their tvs every year, it’s way past the 90 day return window and probably past the extended as well. Power or logic could be the issue. Measuring the fuse and verifying voltage levels first was key. I’ll do the same.

  • @sevbait
    @sevbait Жыл бұрын

    Thanks for the commentary on the power board testing. My UN55KS8500FXZA revision AA01 won't turn on and I tested the power and the cable. Going to this stage next. 👍

  • @williamjamesrapp7356
    @williamjamesrapp73565 жыл бұрын

    THANKS --- a few years ago ( maybe 3 ) I purchased a 56" Samsung TV which had been a DISPLAY model at a store ( probably had been on 24/7/365 until they reboxed it to sell it ) . Purchased it cheap -- It lasted until just a few months after the warrantee expired --- I was watching it and part of the screen started to go dark then the whole screen just went dark in about a minutes time. It has been siting in the other room for the last year now. After watching a few of these videos I think I might try and tackle trying to fix it. I have no idea what is wrong but I guess I can at least open it and see.

  • @reindeerbermy3796
    @reindeerbermy37962 жыл бұрын

    great video ,i have a two year old 75 inch Samsung that while i was watching ,i heard a pop and believe i saw a small sparking near where the power cord plugs in. my TV went black and will not turn back on with no lights anywhere. i haven't taking it apart yet but your video is giving me hope that I can fix it myself

  • @mikej8678

    @mikej8678

    2 жыл бұрын

    Likewise

  • @rd62rdstr

    @rd62rdstr

    Жыл бұрын

    Just curious if you were able to fix this. I had the same pop and spark on my set. Hoping to be able to chase it down.

  • @reindeerbermy3796

    @reindeerbermy3796

    Жыл бұрын

    fixed changed power supply board was fairly easy tx

  • @clarkotte8134
    @clarkotte81344 жыл бұрын

    Was about to give up on this same TV until I saw your video. Neat little tip about the backlights and checking voltage showed me that a few of my backlights were bad and must be shorted as they are impacting the outputs from the power supply. New backlights on order so I should be back in business when those arrive. Thanks for posting this video!

  • @shwak23
    @shwak2318 күн бұрын

    I fixed my TV because of this video. Thank you!

  • @grannysvids
    @grannysvids5 жыл бұрын

    I have one of these that recently went bad, I've inspected the outer board and checked all the caps and diodes, I even removed some components to see if any were dead but they weren't. I didn't try the outer up with the cables removed though, I will try that later. It could be the same board I have problems with!

  • @aureliocastanon3469
    @aureliocastanon34694 жыл бұрын

    Thanks for the knowledge, wanted to know where is best place to purchase power boards or main board??

  • @tylertcrawford
    @tylertcrawford2 жыл бұрын

    Sir, I've found your video to be the most useful and knowledgeable video among the hundreds I've watched. I am an electrician, but I'm not getting any readings from any of the pins from the power supply side. Also, when I unplugged the cable from power supply to the green board, no backlight came on. Would it be safe to assume the power supply/inverter is no good? Thank you in advance for any help, and the awesome straight to the point video you created for the rest of us 🤓

  • @Electronicle

    @Electronicle

    2 жыл бұрын

    obviously it depends on your specific board and how its designed but yeah if there's no output then its probably the culprit. There will usually be at LEAST a constant 5v from one of the pins on all TV's. This allows it to go into a sleep mode but still keep an eye out for the power command from the remote or console power buttons.

  • @tylertcrawford

    @tylertcrawford

    2 жыл бұрын

    I will look into that, thanks so much for your reply!

  • @joselbazcom4221
    @joselbazcom42214 жыл бұрын

    Electronicle, thank you for your help. I tried the simple steps of unplugging the tv for a minute and replugging; didn't work. Then took the batteries out of the remote control, pressed the on button for 15 seconds, placed batteries back in the remote and pressed the on button, and it did not work either. Your video gives me more information as to what might be wrong. There was a storm a couple a days before it stopped working so probably that had to do with the malfunction. I will follow your instructions before I decide to get a new one. Thanks again.

  • @954ironman
    @954ironman5 жыл бұрын

    Hi Thank you for your video extremely helpful I’ve got similar problem with my TV Samsung UE55F8000ST. I’m trying to find out which board I’m having a problem with. Is it the power board or the main board so I followed what you have done in video. I plugged it in And disconnected the cable from the power board connected to the main board it should have to trigger the back light to come on but I am getting the back lights come on and off on and off not constantly on so I am confused please help thanks

  • @MusicMinisterJP7
    @MusicMinisterJP72 жыл бұрын

    Very informative video, good testing. I am currently checking my Samsung UN55J6200DAF bcuz a few days ago, as we watched Tv, we began to hear crackling at the rear of Tv and it went dim blue, then black. It turned off with remote, but I disconnected everything off the wall outlet as precaution, bcuz I also smelled burnt wire. Watching pertaining videos, I checked fuse, its good. I inspected all 3 boards and only at the power supply board did I see like melted wire plastic. I could not see anything unusual on the main green board, it has a red lit port. The T-con board seemed ok as well, it has blue lights when I power on. Odd thing is, she turns on with power button and remote, but will only turn off with remote. I tested all LEDs thru the corresponding wire leads and many did not light. I tested the port pins from where the LED connector goes, and it had No current going out. I did perform the test you did, unplugged cable connector from main or logic board and did get the four 12.65v results in those leads, plus the 4.50 power on voltage of other set. One thing is for certain, I am going to replace All the LED strips with new. And Im prepared to replace the power supply board as well. However, I am not sure about the green logic/main board. Waht say ye..? I'd appreciate any input. (incidentally, this Tv is 7yrs old, was working flawlessly).

  • @ofrimashiah2
    @ofrimashiah23 жыл бұрын

    Thank you I will follow your instructions. I have the same problem with a LG screen 40 inch probably. Just curious what the problem is and if I can fix it. Good challenge

  • @ManleyEvangelista
    @ManleyEvangelista4 жыл бұрын

    This video, actually helped me pin-point the issue of my TV. Now, to order a new motherboard!

  • @juliusjackson560
    @juliusjackson5603 жыл бұрын

    Thanks - just went through this for my UE48HU7500ZXZT before ordering a new power board and yes, my power supply board is fine. So now to track down a mother board. Thanks!

  • @CLDino
    @CLDino2 жыл бұрын

    I have the same TV and replaced the power board which solved my problem for a few weeks. Now I have no picture. Watching your video I have the same symptoms (no picture and lights go on when you unplug that cable). Looks like I'll order a new mainboard and hope that the T Con board is not bad also. Thank you.

  • @chiefkicabich7312
    @chiefkicabich73124 жыл бұрын

    Yessa.. same situation, worked great, storm hit. Hdmi ports stopped working. TV works periodically, sometimes the tv will turn on and off again without actually booting up no matter how long you leave it unplugged. Pretty sure since the hdmi ports are toast and it does power up sometimes it's almost gotta be the main board huh. Think I'll give it a shot. Thanks buddy.

  • @gordondrysdale707
    @gordondrysdale7073 жыл бұрын

    Where can I buy a replacement board as the one you replaced? I have a Samsung model UN55H6350AFXZC

  • @new-knowledge8040
    @new-knowledge80404 жыл бұрын

    My Samsung, that I purchased 9 years and 3 months ago, had the front red LED still flickering in response to the remote control device, but that was as far as it got. The screen and sound remained OFF, and the red LED would simply remain ON instead of turning OFF as the screen and sound come to life. So step one was to check all the PCB electrical connectors to be sure there is no oxidization. Once each of them were cleaned, I plugged them all back in, and bingo, my Samsung LN32C350D1DXZC TV was up and running again. That was about 2 years ago, and it is still running perfectly today. Long ago, I did also add a fan, to keep the TV much cooler, and thus keep the electrolytic caps much cooler as well. That one little old CPU fan made a huge temperature difference.

  • @yukiinu5534
    @yukiinu55344 жыл бұрын

    Great video. Can you show video of how to repair/replace optical/audio socket on 2018 Samsung UN6900 smart tv? Worked until optical cable was pulled against when earphone adapter unit was pulled off of dresser and it hung down on the extended optical cable. I can feel that the optical/audio socket is loose. Can you show what parts or electrical board needs to be repaired/replaced? Thanks a lot.

  • @hommie789
    @hommie7895 жыл бұрын

    Your diagnose was good but you stopped to early. There is a mosfet on the board that you should have checked, it is for the power of the main chip that shorts. Just check for the legs to short and if it is shorted change it, you can get 10 of them for $5 and a lot of Tv's all use the same or very close.

  • @dominicm2175

    @dominicm2175

    2 жыл бұрын

    I agree he should have kept going …..but perhaps he had spare boards on hand or the board was less expensive than his time to do component level troubleshooting. But certainly this video can help a lot of “ laymen” salvage their tv by showing that’s it’s not overwhelming or that you need to be a rocket scientist

  • @mareknosek996
    @mareknosek9963 жыл бұрын

    Thanks for the post! Where do I buy , find the board you changed ?

  • @TheIpod45
    @TheIpod454 жыл бұрын

    Great job! one of the best video!

  • @edwin2963
    @edwin29632 жыл бұрын

    Thanks for your imformative video but i thought the power board only gives the dc outputs when it gets a command from the main board so how did you measure those voltages?

  • @Sadisticpanther
    @Sadisticpanther3 жыл бұрын

    This was helpful thank you lol sadly i saw that my motherboard was blown so is there any links where i can buy some new ones

  • @hectordehesa2118
    @hectordehesa21184 жыл бұрын

    This was put together very well. Thank you sir.

  • @sachinmahajan8813
    @sachinmahajan88133 жыл бұрын

    Nice voice and calm person... I wish I should

  • @mon910i
    @mon910i3 жыл бұрын

    You are awesome. Thanks for this video. I have similar problem and I will attend to the TV asap.

  • @ash-rn5qn
    @ash-rn5qn Жыл бұрын

    So it seems I have the same 2 board set and connector layout as in the vid. My power pins check out (12.8v) to include the 5v on/off power. However I did not get backlight when I disconnected the connector from the main board. So otherwise I would think the main board with that issue but still considering power board. Is that a must to have back light when determining if the power board is good or not?

  • @richlambie3394
    @richlambie33944 жыл бұрын

    Great video, is it possible for the sound board on this type of TV to cause the PSU board to burn out?

  • @dominoez21
    @dominoez215 ай бұрын

    Nicely done video. It was really helpful to me, thank you! I thought my issue was the main board but was not. I found that the scotch tape method on the connectors worked for me. Nonetheless. Your trouble shooting steps in this video helped me tremendously to narrow down the root cause of the problem!

  • @mayhawky
    @mayhawky4 жыл бұрын

    thank you my brother your video fixed my tv.

  • @Perkele_Itse
    @Perkele_Itse3 жыл бұрын

    Great video. My samsung UE40EH5005K just died yesterday and I really can't afford a new one right now, basically not even used. No standby light, TV doesn't turn on. Took the power board off today and tried to check with my dad if something's wrong but we're no experts. I'm gonna try that backlight thing tomorrow to see if the power board is just dead. There is an area where the board is darker but visually to an untrained eye couldn't figure it out. Would be really nice to be able to fix it rather than buy a new tv.

  • @islandgirl318
    @islandgirl3185 жыл бұрын

    My UN60JU7100F wont power on. I have two black cable sets coming out of power board. Removing blk set that goes to mother board from power board does not turn on back lights. Removing blk set that goes to Tcon board does light the back lights. Also removing the two whitish ribbon cables at bottom of Tcon board turns on the back lights. What do you think ? Thanks in advance.

  • @VarietyVideosHere
    @VarietyVideosHere3 жыл бұрын

    Help Needed. I have a 65 inch Samsung SMart TV, It started Restarting and then few days later it stopped working totally. Now its not even turning on. No gave it to Service Center and they are saying the Panel of the tv needs to be replaced ! All backlights are fine, Power supply ok, Mother board is also ok. Is it right ? The panel is looking good (means no physical damage ever) Plz help...

  • @nimalperera5454
    @nimalperera54544 жыл бұрын

    When the power supply board is disconnected from the main board and checked with AC on, I can find 5V on the standby as per what is printed on the board, but cannot find the 24V in the adjoining socket. What is the reason for this? Anything to do with the bridge rectifier? Thanks, in advance, for any advice.

  • @Underdog72B
    @Underdog72B2 жыл бұрын

    Good video. Have a 6900 series that a storm took out. On it all the boards are in one. All it has is backlights. I'm waiting on a replacement board to come in the mail and hoping it will fix it. 60bucks will be a lot better than $410 for a replacement.

  • @user-jq1ek5jg2q
    @user-jq1ek5jg2q9 ай бұрын

    Thanks a million for your amazing videos, it's been a long time since I last fixed one of these tvs but I remember you doing it before and I just need to say thanks again for such great work 😀 👍

  • @Electronicle

    @Electronicle

    9 ай бұрын

    Thank you! Glad they helped!

  • @t0nito
    @t0nito4 жыл бұрын

    Kinda dissapointed, I was expecting a component level repair...

  • @joelshack85

    @joelshack85

    4 жыл бұрын

    t0nito just bake the board in question in the over and reflow the solder. 9 out of 10 times it could just be a bad solder joint.

  • @xcross8537

    @xcross8537

    4 жыл бұрын

    Modern control boards are not easy to repair. Capacitors, diodes, resistors, etc are really tiny and difficult to desolder/solder. You’re better off replacing the whole unit.

  • @richardanderson5424

    @richardanderson5424

    4 жыл бұрын

    Me too that’s what I spent 6-8 years training to do. 94-2002. Now it’s all smd so it’s to awkward to do. It’s all digital so the circuitry is completely different too. Used to love getting the circuit diagrams from reference library at college and in the village where I lived (about 1000 people) I was the man they turned to. I did it really cheap and sometimes only broke even but it was pocket money. Used to get help training at college. I still fix my own VCRs and CRT TVs but nobody else want ps anything doing. It’s the throw away society and the market is flooded with Chinese crap with no diagrams available.

  • @berryelectronics

    @berryelectronics

    4 жыл бұрын

    @@joelshack85 That will usually work with LG, however I've never seen it with Samsung. More than likely it has a shorted capacitor on the main board.

  • @joelshack85

    @joelshack85

    4 жыл бұрын

    berryelectronics yea baking sometimes Is my last resort to try to fix it.

  • @sungbyun3224
    @sungbyun32244 жыл бұрын

    I was able to repair a 60 inch Samsung TV 2015. You are the best!

  • @AllThGdNmsRTkn
    @AllThGdNmsRTkn2 жыл бұрын

    hehe i have my tv laying out here, with a similar problem, so was gladly following your instructions as a complete electro-novice. 1. Check power supply pins one by one. check, they're working, same as in the vid! 2. Get second hand mainboard supplied by owner... crap, dont' have that. Anyway thanks for sharing, the tip for unplugging the mainboard to see if the backlight was working was very nice to know!

  • @shakebakesd4302

    @shakebakesd4302

    2 жыл бұрын

    I had the same issue and was able to spot some hairline cracks in some old solder connections. I just tapped both spots with my soldering gun and got it back up and running. Haven’t had any issues since. The cracks in the board were only visible on the back side of the board after unscrewing.

  • @cdop2201
    @cdop22013 жыл бұрын

    Question can you Replace either continents with ones from another television that’s not the same brand?

  • @gabrielnavarro4572
    @gabrielnavarro45724 жыл бұрын

    Sir no need to repair the pcb ? or just replace a new 1 pcb?,thank you.

  • @peterbarclay6039
    @peterbarclay60393 жыл бұрын

    I'm wondering if you have some advice. I have a 70 inch samsung 6 series TV. I'm not super familiar with new tv's (been a decade or so) I know how to replace boards and stuff. I've been trying to trouble shoot this. In this video you show how power goes through and mine does the same and is fine. I also have access to replacements and replaced both the power and main boards just in case. I'm still getting the same thing. Led blinks twice intermittent. in the back I can see the backlight come on full for a second or two, off then back on real fast to dim backlight for a second or so and then off. The flashing and the backlight go through this series over and over.

  • @evanhikmat
    @evanhikmat4 жыл бұрын

    Your video great thank you.but I did the same thing I got my tv fixed but The writing upside down do you know how can I fix this program?

  • @rajivjadhav1584
    @rajivjadhav15842 жыл бұрын

    Very nicely explained. Thank you

  • @joefrancis2316
    @joefrancis23163 жыл бұрын

    I’m having trouble actually finding a replacement board for my Samsung. It has the BN94-12725q board. Any ideas on where to get them

  • @nhojiksenrub637
    @nhojiksenrub6372 жыл бұрын

    Hope you can help with a Bn4400932C board. Upon applying ac to board 5a 280 slow blow fuse blows, continuously. All peripherals are disconnected. There does not appear to be any cold solder joints bad looking components or burns on the board. Any suggestions at this point would be greatly appreciated. Thanks for looking.

  • @infotechyeti
    @infotechyeti4 жыл бұрын

    Thanks for the video. Found a Samsung 48 inch 4K smart tv and seems like led goes on and controller in back seems like it's on and has power. Hard to find parts. Any sites besides Ebay u recommend?

  • @Electronicle

    @Electronicle

    4 жыл бұрын

    try shopjimmy.com

  • @SnowWolfJones
    @SnowWolfJones4 жыл бұрын

    I have a UN55J6201AF & the layout is the same. I tested power across the ribbon between the 2 boards and got similar numbers, but when I unplug the power board from the IO board, the LED array does NOT light up, and I can’t seem to detect any voltages from the pins on that connector. Does this mean the LED’s are burned out ? What do you recommend ?

  • @stever7061
    @stever70615 жыл бұрын

    man I could really use your expertise on my 5 yr old Samsung 46" LED LCD $1,200 thin smart model tv, it was my favorite period. but niw it doesnt turn on any more 😞😞

  • @HolyHomesteading
    @HolyHomesteading10 ай бұрын

    Yippee I fixed my tv. I have the parts and I swap them out one at a time and found it it was the main power source the first one that you tested to be the culprit. I put all the new parts in anyway and we'll save the ones that we're not the culprit for future use. I figured I had the TV open and I already had the parts I might as well switch them out. I'm so happy and it didn't cost me a penny. 12 years ago Best Buy was just supposed to fix my TV in the parts didn't show up on time so they brought parts then when the other parts arrived in the mail I just kept them for future use and I'm sure glad I did because now it's like I have a brand new TV. It's a 3D TV plasma so they don't make those anymore.

  • @CerpinTaxt-mw1zx
    @CerpinTaxt-mw1zx5 ай бұрын

    First of all, how do you take the tv apart to get to that stuff? No screws on my tv at all? SAMSUNG UN55NU6900FX2C

  • @denverwoods2513
    @denverwoods25135 жыл бұрын

    I have and lg 50 in the standby light blinks 3 times the screen comes on and the turns off but the standby light stays off any idea what it can be

  • @warrentaylor3459
    @warrentaylor34594 жыл бұрын

    UN46D6000 won’t power on, a blank screen. Son said they had it on and just went blank. Took off back cover and unattached the power board from main board and back light is flashing on and off intermittent every 3-4 seconds. Any thoughts on what these means or what the next step would be? Thank you.

  • @XWilkaX
    @XWilkaX3 жыл бұрын

    Any good places to actually purchase these boards and if so what cost are they usually?

  • @johnclaudio8799
    @johnclaudio87995 жыл бұрын

    Thanks for the tip I think I can do it

  • @hisbevy76
    @hisbevy765 жыл бұрын

    Thank you for your video. I ordered a kit...replaced mother board, toggle and wifi and I’m up and running again.

  • @Electronicle

    @Electronicle

    5 жыл бұрын

    Great Job!

  • @br3wskee

    @br3wskee

    4 жыл бұрын

    Where did you order your parts from?

  • @KreshnikMucllari
    @KreshnikMucllari4 жыл бұрын

    Hi there, Thank you for the video, I did change both boards and still nothing. There’s power but tv doesn’t turn on! Could it be the T-con board?

  • @swimwithcoachraven1532

    @swimwithcoachraven1532

    4 жыл бұрын

    I may have the same problem as you. I only changed the power board. Main board still thinking about it

  • @chente8318
    @chente83185 жыл бұрын

    Thank you for this video it really showed me a lot it seems like my TV has the same issue as the one you were fixing but now I'll check it to see if it's my main board or not

  • @clarencefelzien1517
    @clarencefelzien15172 жыл бұрын

    I don't have the backlights when I unplug from the power supply. Power reading were good. Is the logic board bad?

  • @sthildas4857
    @sthildas48575 жыл бұрын

    I enjoyed that, do you use a ground strap ?

  • @Electronicle

    @Electronicle

    5 жыл бұрын

    nope. Not for this type of repair.

  • @gloriabryant4435
    @gloriabryant44354 жыл бұрын

    I have a samsung tv no standby light compositors all look good , it has two ceramic 6.3 volts slow blow fuses, one is good and one is bad. Replaced the bad one but as soon has it plug it in the tv sparks and still does nothing. Any Ideas?

  • @ed370zx3
    @ed370zx32 жыл бұрын

    I have the same issue. Where can you find the replacement logic boards? Thanks in advance. Great job!

  • @3XLtube
    @3XLtube2 жыл бұрын

    Just tested mine using the same approach and the the voltage is fluctuating on the power board same points , not a steady 12.8vdc . Also backlight doesn't turn on when I unplug the mainboard from it. Can I assume that's the power board who needs replacement ?

  • @gilbertortega6978
    @gilbertortega69783 жыл бұрын

    hello, i have a samsung unku6500 tv with a bn94-10838q main board.... do you know how to test the main board with the 1.8 flex ribbon. i bought a device to test main boards tv160 7th gen but cannot test the types of boards with the fat flex ribbons...these are the only ones i can not test. if you know where i can get something to test that be great. thank you

  • @debraarizona4809
    @debraarizona48094 жыл бұрын

    Very helpful my televisions died all of a sudden and its 3yrs old I tried everything to get it to work. Now I see how easy it is to fix,I guess I'll just take it to a shop and have them fix it. Hope they dont over charge me!😥 Thanks for sharing.👍😊

  • @wycarringtoncrear8852
    @wycarringtoncrear88525 жыл бұрын

    I have a rca 65 inch lcd flat, I need to know how to fix it

  • @cjc1867
    @cjc18674 жыл бұрын

    Thanks for the video that will help me fix my neighbours TV that went off after a power surge or lightning strike. Would be nice to know what component that failed.

  • @eileenpolintan5563
    @eileenpolintan55633 жыл бұрын

    thank you! I will ask my son to do this.i'll let you know how it went

  • @shangster42

    @shangster42

    2 жыл бұрын

    How'd it go?

  • @jaybee1158
    @jaybee11585 жыл бұрын

    Ive seen alot of these videos and in most cases its like get to the damn point. Your video wasn't like the rest which was koo... From my experiences and just having nothing better to do, if you grew up not having all the money in the world and things broke; for most that's how you learn to become a handy man. So for the people on here watching these type of videos and say "its because of these videos that gave you the push to jump in and trying to fix it yourself " i 👏 applaud you guys that's all it takes . To be honest 7 times out of 10 of all the tv's i fix here and there, its really only the Capacitor's and the ribbon cables that go bad and its really easy to fix those. As long as the lcd monitor or l.e.d's are not broken then usually what i just stated are usually the culprits.. If your an unlucky one it might be something a lil more but like i said if it isn't the screen or lights its easy to fix these things.. I got sick of seeing and hearing how people get ripped off for a fix that really was only a 5$ fix but getting charged about 100 then an additional 60 to "order" a part smh.. Good luck to all of you who are trying to roll on your own to fix your stuff don't get bamboozled by con artists.. Good video too!

  • @joycekegley4352
    @joycekegley43525 жыл бұрын

    Have a Samsung tv LN40A650A1F. Says fan issue.I have all screws out and still can't get back off. Can't even see into bottom right side enough to see if there is a cable hooked to it. Thanks for any help.

  • @Electronicle

    @Electronicle

    5 жыл бұрын

    Check around the AV inputs/outputs area...often there's a screw hidden around there. Also unscrew the standoffs on either side of the VGA port. Other than that I'm not sure what to tell you as I'm not there.

  • @halendemwaanga8488
    @halendemwaanga84885 жыл бұрын

    how can you help the fuse on the power supply keep on browing up whenever I replace with the new one

  • @tprince8615

    @tprince8615

    4 жыл бұрын

    It sounds like you have a short somewhere in the board. That's what's blowing your fuse

  • @datalore3276
    @datalore32763 жыл бұрын

    *I know this is an old video and prob not get any answer/comment but. Hi there I have a Qnix 2700 that suddenly would not power on, it just went black while playing a game. I took it apart to see if I could see anything obvious but everything looked fine. I noted the power board number MST9XG7-WV2 and tried to find one but couldn't find anything but after watching this video I put the power board back in place (without the smaller board REALLY Small one)to do what you did @0:53 and without the other board connect the standby light came on(wasnt doing anything when everything was connected)So I think I can now assume its the other board. I took a close look at the other board and there are not many components on it and I think(not 100% sure) but one of the 110v 47uh capacitors looks SLIGHTLY bulging out no discolouring and not bulging out like I have seen on youtube videos but it does look like i is very very slightly raised so I have ordered one to replace it to see if that fixes it. I wanted to ask advice to see if you think this is probably the case(since the standby light comes on without the other board connected) and to ask why I would need to get the EXACT same (smaller board)logic board? to get it to work and why couldn't I just get any? Its a 27inch 1440p so couldnt I just get any logic board thats for a 27inch tv? And to thank you for the tip which might have pointed me in the right direction.

  • @sarockpashotan
    @sarockpashotan Жыл бұрын

    It is easy to repair such a way by changing with the another ok board. If you look for the faulty which caused it you can be a good repair man!!! My little boy at the adged 12 can do it very easy!

  • @YourFriendDevin
    @YourFriendDevin5 жыл бұрын

    Does this probably work for my Samsung J4000?

  • @allowmetoshoot8607
    @allowmetoshoot86075 жыл бұрын

    If I was to do that and it still don’t work what do I do because I have same tv And I tried and what do I use to get the screws out because I used screw driver and it would not unscrew plz get back to me fast thx

  • @Electronicle

    @Electronicle

    5 жыл бұрын

    you replaced the mainboard? its possible that your power supply is bad and its not hte main board or its both. Did you do any testing? Also is the same symptoms? As far as the screws are concerned, I dont know what to tell you. They are screws....they unscrew. If you can't get them to turn its possible you're using the wrong size phillips driver. Try using a small flathead and push hard when u turn.

  • @deanheugel6896
    @deanheugel6896 Жыл бұрын

    Loved it basics on finding the problem board and fuse check

  • @eddydar
    @eddydar4 жыл бұрын

    Hi i ve come across a toshiba 58L7365D led smart tv. Its powers up with a blue screen no sound and no response to remote or buttons on the back of the tv. Is this a tconn board issue?

  • @calibomber209
    @calibomber2092 жыл бұрын

    Any tips on a reddish tint aliasing? I bought a 2nd hand samsung un40c6300 it powered on perfectly but after 3-5mins of having it on it started to slightly flicker and there’s aliasing and artifact with a red tint. Other than that it’s perfect.

  • @christinegiel9242
    @christinegiel92425 жыл бұрын

    Hello, After purchasing a new Samsung remote, installing new batteries, and draining the power from both the TV and the remote, the remote still will not power on/off the TV. I tried to use the jog switch to reset the TV, but I need a remote to enter the PIN. Then to make everything worse, I accidentally locked the panel key- now the jog switch is useless. Is there a way to unlock the panel key without a working remote? model # UN50H5203AF- MH01

  • @bobo-si3kw
    @bobo-si3kw4 жыл бұрын

    I have a 60 inch Samsung, the sound is on, the back lights are on, the screen, when turned on goes from black to a dark blue screen, any idea? thanks

  • @SchaafStyle
    @SchaafStyle3 жыл бұрын

    Hi When I disconnect the mainboard from the power supply, the backlight flashes. What could the problems be? The capacitors look good.

  • @SimulationFarms

    @SimulationFarms

    3 жыл бұрын

    Same issue did you figure out the issue

  • @Phatmatt1

    @Phatmatt1

    3 жыл бұрын

    Same issue here