How to Fix a TV Hit By Lightning or Power Surge
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- เผยแพร่เมื่อ 27 ส.ค. 2016
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Learn some steps on how to diagnose and repair an LCD TV that was taken out by lightning. This particular TV is a 52" Sony but as long as yours is an lcd tv then these steps to diagnose should be the same.
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This video popped up on my feed probably by the divine intervention 😂. I have a Tv that’s been sitting on my dresser for almost a year, from a power surge. I called for repair and was told $250.. I wasn’t sure I wanted to pay that much to repair my tv. Coming across this video, plus actually doing some searches on the topic, this video is by far the best video I’ve come across. I ordered the Multimeter, so we’ll see how it goes when it comes in. Thanks to your video, I believe I can fix the Tv myself! I’m definitely going to try.
You got this!
The way you talk, explain and do it is amazing 👌🏻
I've been watching youtube a long time, and have never seen a more informative discussion with comments and replies by the originator of the video! Well done FregalRepair! You are at the top of the list for helping others! You give me courage to tackle our Visio that is dead from a lightening strike. I bought one of the multimeters linked above, I hope you get credit for that. :-)
Thank you for your kind words! I’m glad to hear you have courage to fix it.
This allowed me to fix my tv for $20 rather than not be able to afford a new one right now. Thank you for posting this.
That is great to hear!
I'm about to attempt this project myself but furthermore I ponder as I have a 36' model of same brand and model and am wondering if I could rob the 36' to Frankenstein its board into the 70' fyi the power board is not the issue it would be the hdmi board.....
Could you just replace the HDMI chip instead of the whole board?
@@mrswiss Potentially, if you're equipped to do surface mount soldering. That's beyond the skill level of myself and most people though, not to mention needing a nice enough soldering iron and de-soldering iron to pull it off cleanly. Cheaper to pay the money for a whole new board, especially considering the time spent in labor.
Never thought about the surge coming thru the hdmi ports!
Thanks good to know
brilliantly explained, you've turned quite a daunting task into a simple step by step and now im about to pull my TV apart! thanks for the great video :))
Thanks! I hope you can get it repaired.
Thank You! Thank You! Thank You for this video and for helping me to find the part I needed to do the master board replacement. A lightning strike fried all my HDMI inputs. I had never dreamed of being able to do the replacement myself but with this video I was able to do it, and the new master board for my 86" TV was only $29.99 plus tax, including shipping. Doing the job was a bit nerve wracking, but I did it and it worked perfectly when I turned it back on. Very kind of you to help others with videos like this!
Thanks for watching! I usually buy my boards on eBay. You can use a website like shopjimmy.com to find out the model number of the board you need or you can buy directly from shopjimmy
@@FrugalRepair I got it for much less on Ebay. Thank you!
Well done. Not more information than needed but enough to do the job.
Very good video. I will have no trouble isolating what to fix with your tutorial 👀... THANKS
That was very helpful Thank You. I will definitely try to fix my TV with your instructions. 👍👍
5:55 thank you!! Can’t wait to go home and try this. My TV was plugged into a surge protector along with several other items including my cable box. My cable box was connected to the TV via HDMI and it’s only my TV and cable box that got damaged. All other items on the surge protector are okay. When I called the cable company to replace the cable box, they cam and simply bypass the HDMI out port on the cable box and used a port (don’t know the name) but the wire that was use to connect to my next tv had a 3.5mm jack end into the cable box and some red and white and yellow ends that went into the TV, RCA I believe…
So the cable box power source seemed to not have been hit only the HDMI cause light was coming from the cable box just no display. The light that normally come on my TV when plugged in doesn’t so maybe it’s my power board and also the main board.. either way I’m excited to go home and try this myself! :) thank you for this wonderful video!!
Superb. Saved hundreds in a new TV!!!
Awesome video! Thank you.
Thanks!
Great and informative video, just got a TV that was struck by lightning from my girlfriend’s family. Gonna give fixing it a shot and see what I can do.
Thanks! Great to hear you are planning to fix it. Post any questions here if you get stuck.
Thank you, sir!! And my Bravia has new life!!!
That is great to hear!
really good video and clear explanation. thank you 👍👍
Thanks!
Excellent video thank you. I have a sony xbr_65a9g oled. Lightning strike also. After reading through all the comments i didnt find one talking about replacing power supply and control board. Then after only having sound on the tv which im happy to hear. But the display is still black. What would u look at next to get the display back?
I didn't hear back from you, but thanks for the video. I got someone else to look at the power board. It looked like the PWM controller melted and I didn't know what else went on so I replaced the power board and presto, it works! Thanks for the video.
I'm sorry, I get more messages than I can respond to. Glad to hear you got it repaired!
Awesome video and very informative.
Thanks for watching!
very good description, thx a lot.I tested my vizio power supply board ceramic fuse, and it looks like it is opens I will try it now and if works, all the credit is for you.This happened after lightning strike, no power.
Hopefully you can get it repaired! Let me know if you have any other questions.
Very nice informative video, my tv VDIGI MODEL NO 39E100CT shot down after thunderstorm and lightening
Fantastic video, pretty much to the point! would you please advise where is the best place to order parts for the TV?
Thanks! I usually use eBay.
Great video! Thanks
Thanks for watching!
You deserve a like my friend
Thanks!
Best video thanks!
Well done! Ordering my main board and we'll see how it goes.
Thanks! I hope it fixes your tv.
Where can i get the board to buy
@@sunilbaboolal6209 ebay
Very smart,, I have a lot of boards out of these tv's if you ever need any let me know, liked vid
Ok, will do
well made. thanks
Great video, thank you . Do you have a site you can recommend to get the main control boards?
Thanks! I usually buy at ebay
I had two tv's hit (along with two DirectTV boxes). On the first tv I checked the fuse, howevere I don't have the same type of multimeter you have. I went to ohms and checked, without power, it showed no resistance. I then connected the power cord and checked the standby voltage. The board indicated 5v on standby but I registered 3 and then 4 volts. I assume this means the power board in working. What are your thoughts? I don't want to buy a new main board until I get some more information. Also, there was no obvious burning or scorching on the main board.
Good afternoon. My sharp LC-60E69U does not power up. But I do have the 5VDC standby voltage present (but no other power supply output voltages). The standby Red LED is on too. The TV does not power up. Do u think it's the main board not giving a signal to the power supply to turn on the 12VDC, 24VDC, and other outputs? Of course the power supply fuse is good too. I have both replacement boards. Should I replace both first or just the main board first? I don't want an old board to damage a new board. Thnx
Yeah was really a good video buddy.i Appreciate it
Thanks!
Wow nice video some one gave me 2 4k tvs that got hit by lightning said cable box was hook up fried the boxs and 2 tvs no stand by lights fuse good power. supply main baord looks ok no burt chips but guess i go from main board first go from there lucky seen your video would bought a power supply first
anyone here watch this video because ur tv got hit by lightning?
Genius .....
How did you arrive at that assumption...
@@tvuser1 basically at my home we use attenna signal while i was watching a tv show (i was watching a tv during a thunder storm btw) about maybe 2 hours after watching a tv show then boy we heard a really loud bang sound in our backyard(we installed the attenna at our backyard btw.
@@chopstickftw0121 jus trollin.. dont mind me :-) hope you were able to fix it though
ChopStickGaming ....nope......I just ordered a 65 inch Samsung and I just like staying ahead of the game. In case it ever gets hit by lightning since I live in Florida
@@willie3528 hehe ur local florida man
Thank you so much Sir, it was super informative. My Sony Bravia android tv KDL-43W800C. Just got short by lightning 2 days ago... Do you any idea how i can get the new mother board?? I would be very greatfull.
Thanks! I usually would buy one from eBay. Make sure to search based on the printed board number on main board.
Thank you so much...
You're welcome!
Great video, and thank you! I have an issue with my 70” JVC LCD 4K TV, and would like your (and anyone else’s) opinion.
The TV has been rock solid since it was delivered in 2019, up to now. It’s been used an average of a couple hours a day since. I was watching a movie a couple weeks ago, and the screen dimmed, then went black, with the movie and it’s audio still kicking along fine. I turned it off, unplugged it for a few mins, then plugged it back in. The red IR remote receiver light came normally, and I hit the “power” button on the remote. And yes, I am aware this is only a “stand by/sleep” button, and doesn’t fully power the unit down while plugged in.
TV turns on, screen illuminates, and it seems to be working fine again. I walk over (it’s wall mounted), and place my ear as close to the bottom of the TV as possible. Now I can barely discern a faint, slight buzzing emanating from inside the TV. No burning smell, though. I sit down, go back to my movie, and 10 mins later, same failure, screen goes black, with audio continuing.
So I repeat the unplugging, holding the power button down, doing the remote code thing, etc., from all the FIX YOUR JVC TV videos on TH-cam. No luck. I wasn’t really surprised. Now this TV’s AC power has not been run through a true anti-spike strip (just a regular power strip), or any other power conditioner type device. So I’m suspecting the power board. I grab my Kill-A-Watt meter, and plug it in to the receptacle the TV was plugged into. Both outlets on that receptacle are showing 121V @ 60Hz. Normal. So I then plug the TVs cord into the Kill-A-Watt, and the voltage reading drops to 89V, then 112, then 119, back to down to 110, and so on. It’s basically all over the road. Same thing happens on the lower outlet. I unplug the TV.
I pull off the back panel, and there up on the top right side of the board (cold side), a single capacitor next to the dual LED wiring connectors is “domed” on it’s top, with obvious signs it’s spewed out a bit of some black dusty by product of whatever over heated goo is inside of it. Not good at all...
So in your experience, have you ever seen a TV with a failure on the power board like this continue to work for a few minutes at a time, before failure?
And if so, what do you think the likelihood of this failure type damaging the main board is? Or any other component? Specifically the power button module, and/or T-Con board. And any idea what is happening with the voltage reading at the power receptacle? It seems like the board is “back feeding” shorted power out of the board directly into the cord.
Anyway, thanks very much for your time, and attention to this novel of a post, and for any reply! PS I have the board out on my bench, and arrived here in search of videos on how to bench test a live (powered) board out of a TV.
~ Multimeter Rookie with a fire extinguisher handy 😜
Great video thank you, but 1 question, I have multiple standby 5 volt pins and they all show 10 volts when tv plugged in so power supply bad? vizio lcd
Thanks! That doesn't sound like a voltage you would see on that power board so that is a good guess that it is bad. Are you sure you have your black probe on the metal chassis and red on the 5v pin when you are taking the DC voltage reading? Just checking that you are measuring the correct electrical potential.
How to replace backlit strips on the smarttv......Thanks by the way for been of great help...
Thanks. Working on a backlight is one my next videos I’m planning to get out. They are shorting out on a lot of TVs.
Great teachings there. So what shop did you buy the board? Is it a original or a duplicate?
ebay
My aunt has a sceptre tv got struck by lighting everything works but the speakers it just popping sounds as they talk are music plays is the speakers blown are what do you think could be wrong
Thanks for the video... I just found out my main board was affected buy the lightning... but can't find where to buy LG 32lb552u-tb main board. kindly assist
Great job diagnosing it yourself! I looked (like you did) and couldn't find one. I would suggest that you see if you can find out if a different model of tv uses the same board. Sometimes that is a way to find boards you can find by a direct search.
I have a jvc 47" Model # JLE47BC3001 I have replaced the Main & power boards and the tv still turns off after a very few minutes & sometimes seconds after turning on so obviously those we not the issue! Do you have any ideas what it could be!!!
Thanks for this, my tv was damaged yesterday by lightning, before I buy one, I will try this..I don’t believe in taking it to anyone fro repair, is either I do it myself or buy one, period. Thanks for this video
I bet u south African....🤣🤣🤣🤣🤣
U scared u tv might become a doner.
Great video! Where did you purchase the main board? Thanks!
Thank you! I bought it on ebay.
Hello, If my standby light is on, what is the name of the board I should purchase?
What sort of website do you order the main (or any other) board from? Are you dependent on what is available on eBay, or do you have a trusted source that you like to use?
Ah reading through the comments and see that eBay is your go-to. Welp, not my favorite answer, but it'll do. Thanks for the step by step!
I have a MSI mother board that went inn the blink after trying to fit a pci card...Could no send it to you to see if you can fix it for me?
Your video was awesome. Where can I get those parts?
Thanks! What part do you need? A new main board? I’d buy from a reputable seller that has a good price. Most of the time eBay is my go to source.
I have replace the power supply board, main board, motherboard and the small board theta has the power and channel change buttons.
My RV was hit by lightning, it came on a couple times after the lightning strike but then stopped powering on completly.
Once the four boards were replace it powers on, but the Visio logo screen never comes on. It’s clear that lights are on and the standby light comes on but then cycles off then back slowly taking the front screen slightly on and then black again.
We tried turning the TV off unplugging it and holding down power button for ten seconds to power cycle it but still doing the same thing.
What should I do at this point?
What's the best way to find replacement parts for TVs? I know it's my main board that's the problem, but I've yet to find a place that sells it. (lighting damaged the cable box and that damaged the main board)
eBay is the first place I usually check.
Thanks good video. How much was the main board ?
Gaby Tjintjelaar It was about $60-70.
@@FrugalRepair where can I find them?
Great video! This is the first time I heard the explanation about the surge coming through the HDMI. I pretty sure that happened to me as our 60in Samsung was in a surge protector, but one connected device was not. I get no standby light at all and ran through your troubleshooting. Fuse is good. Finding that if I disconnect the power and main board connection and then connect power, I get backlights. But once I reconnect the two together, nothing. So this tells me it must be the main board? Though I can find not burn marks or puffy caps or anything that looks bad. Should I just replace the main board since power is getting to the power board?
Thanks! Usually, you need the main board to tell the power supply to turn on the backlights. That is curious that they are coming on without the main board attached. You may need to take measurements with your multimeter to see if the standard voltages are there. Or if they fluctuate.
@@FrugalRepair Thanks for the reply. The pinout on the power supply has 13V for 4 pins. If I keep everything connected (main to power supply) and plug in the TV, I only get ~10V (just under) on each pin and no backlights. If I disconnect the main board from the power supply board and retest I get the full ~13V on each pin. What do you think of that? Also standby light never comes on and remote or manual power does nothing.
I’d make sure to check what is printed on the circuit board. It usually tells you what each pin’s voltage should be. As for what you mentioned, I’m not sure. You can test to see if there is voltage going to your input bar (where the on/off button is), this will give you more clues. That is a standby voltage going there.
@@FrugalRepair Hey man, appreciate you getting back to me. I know it was a loaded question and super hard to answer without seeing it. I'll test a few more things. Thanks!
@@FrugalRepair All Voltages checked out so ordered a main board and installed it last night. TV picture is back!! Fixed!! Pretty sure it was the HDMI connection that fried things, just like you said in the video. Great video. Thanks for all the responses!!
where do you buy the boards? great video
Thank you! Much appreciated. I buy from anywhere online. Most of the time the best place is ebay.
Where did you order the resistor and diode?
Good stuff! Where did you just order the new board from ?
Thanks! I usually buy from eBay.
I'm reading that quite a few people had their TV's plugged into a surge protector and that the power surge still caused damage. I live in Mexico where power comes on and off frequently. Had thought about getting a power surge protector but didn't get around to it and about a half hour ago my TV just zapped out, followed by a strong smell of electricity burning in the air and no standby light...I'm assuming from a power surge. Do you think power surge protectors work, and if so, do you have any recommendations on a good brand?
I don't have any recommendations but it sounds like having a good one would be a wise decision. Beside the main power cord, the power surge can come through another device connected to the tv (ex; hdmi), like it did in the tv in the video. I'm sorry to hear your tv broke. Hopefully the diagnosis will be fairly easy if there was a strong smell it may mean you can visually see which board got damaged.
Hi I have a question....
I Have a Vizio e500ar. We had a lightning storm and a big strike happened near our house. After that the the tv stopped working. It won’t cut on and doesn’t have any lights. It was plugged in the power strip, but the other things on the power strip were still working and so is the power strip itself. The tv was connected to both the antenna and satellite dish. We have another tv connected to the antenna and it is working fine and we have another connected to the dish and it’s fine. We were even able to connect the dish Box to a new tv we had in the shed. It at first didn’t work, but we then realized that the hdmi cord from the dish box to the tv was no longer working. We got the av cords from the Joey in the other room and connected it to the tv since we didn’t have another hdmi cord. It’s now working with the new tv but the old tv still won’t cut on. Any tips?
Did you test the voltages on the power supply?
How to make it look like it was hit by lightning so my protection plan will cover my child shooting a nerf gun at the screen
Soooo, if the fuse is blown, should I just change the fuse or change the whole power board ? And if I just change the fuse are they a pull our or a solder hook up ? This is a great video got hit by lightning 2 days ago, no power, no standby light. Haven’t pulled it off the wall to look yet, it’s 75 ‘’ RCA and is 130 pounds and I’m 80 years old so I don’t want to take it to a shop, that’s a major job. Thanks again for your video . EJ
It may be that you only need a fuse. Sometimes the fuses are soldered to the board and sometimes they are not.
Thank you for putting out a great Video!! Recently a lightning strike fried my router, modem, Roku and firestick. My TV powers up, and stays on Standby. (OPC is on) and I am able to see menu options. But Roku, Firestick and other HDMI video players do not display any pictures. I tested all HDMI ports. Confirmed that the HDMI cable and the new streaming players are working fine by testing them on my computer monitor. What board should I check/change ( and a good place to buy it).? TV is a Sharp Aquos LC -C4067UN.
Sounds like what happened to the main board in this video. Your current main board has a board number on it, you can search ebay on that number or the model number. I usually use both to find the best one.
@@FrugalRepair I ordered a part online and was able to repair it on my own. TV works now! Thanks to you, I did not have to buy a new TV!!!
My Sony Bravia standby light works but it only stays on for a few minutes.
The longer I leave it unplugged, the longer it stays on. But it eventually turns off in a few minutes. And I did check to make sure the timer was off that turns it off after a certain period of time.
My guess is that something is okay while cool, when it gets heated up, it turns off. Just what would that be then, a fuse? And in which part the Power or the Main board?
Awesome!
Thanks for watching!
Hi sir! I have an LG LW4500 tv. Its an old tv but i want to revive it. As far as i can remember, i think it got broked by VGA (or maybe HDMI i forget). When i plug in to the wall outlet, the tv has a stanby light. When i power on, its like normal. The LED light turns from red to white, but theres no display on the TV. So its definitely the main board right? Could it be the Tcon too? Also i havent taking apart the tv yet, maybe if i got time. I hope you answer my question :D thank you sir. (Sorry for bad english)
It could be any of the parts inside. It could be bad capacitors on the power board. It could be messed up firmware chip on the main board. It could also be a bad backlight. For a bad backlight diagnosis, turn the tv on and shine a flashlight on the screen. If you see anything then its a bad backlight. You would need to get more information to diagnose it further. Also, physically look at the boards for any burn damage.
I have the same TV. The power light comes on, but no screen picture. I know it is getting power, because the optical audio on the back, is lit up. Blank screen though. Does that sound like I need to replace the main board like you did, or could that just be the fuse you were talking about?
Did you go through the guide I have? There should be a link in the description. You want to rule out if the backlight is bad.
Well, this tv I recovered from someone who isn't as inclined as I am and they set it out on the curb. It's a beautiful Samsung 55", that was well cared for, and looks less than 2-3 years old. I noticed a 2 pole plug, not like my Sharp's polarized plug. But, I remember that our Utility Provider had shut down for "Scheduled Maintenance" a few weeks back. I'm assuming it wasn't plugged into a surge protected power strip (all of my electronics use them), and when their power was restored their TV was not turning on. I am a Journeyman Industrial Master Mechanic, and if needed, I know I can fix a Military Tank 😊😁😎
This will become a monitor for a Dell Inspiron sff tower that I also recovered that someone discarded... I cleaned out the Roaches, and a minor spill, and am upgrading it for my purposes 😊😉😁😎
I changed all the components now the TV backlight turns on but the LCD is lit but not showing anything. before the TV wasn't even turning on but after buying the power supply and new motherboard the LCD backlight turns on but did not show anything, speakers work too but no image. what do you think I am missing here? maybe the entire LCD is burned?
How is this different from fixing the same issue with an LED TV (Sony XBR 65X850B)?
Did you ever use a headlight that fits on your forehead with a headband? I use them & they work great.
Yes, I have a few of them!
Great video man. I have a Hisense LTDN40D50TS TV that died following a lightning strike on the satellite dish it was attached to. The red/blue LED on the TV comes on and stays on but there's no picture on the screen. I have found that the TV uses a TP.S512.PB83 board that is found on dozens of other TVs, such as Supra, Haier, and Baird. Question is, would a mainboard from any of these TVs work? Cheers.
Thanks for your comment! You are correct that some main boards are identical to ones used on different models. If you make sure the board numbers are the same and you visually inspect it (to make sure the connections are the same, etc) then I think you should be fine. At least, that is what I do. When searching for a replacement board on ebay, I'll do at least two searches, one for the model number and one with the board number.
@@FrugalRepair The board number in my case is TP.S512.PB83, the same board that is in many other TVs. I have carried out the two searches as you suggested. The search for my particular TV model number yielded nothing. However, the board number search yielded several options. Quick question, can an identical and matching board refuse to work with a particular panel?
@@denniskiplangat5029 I would think it is fine. If you have made sure the board numbers match and the components and connectors are exactly the same. It is possible that the connector style might be different (so you'd want to look at the photos too). You can always buy from a seller that accepts returns too to add another level of safety, if you want.
Hi great video. I commented a few days ago about it and wondered if you'd take a look at a suspicious (melted?) component on our power board (fuse was OK). I asked if you might take a look at it and you suggested I post a video. I posted a 10-second clip (twice) and it looks like its gone. Perhaps it violates a YT rule? Anyway, if I can still persude you, could I back channel it to you somewhere? Thanks, Steve
So I'm dealing with this issue but tv does turn on still board looks OK but screen shows no picture just vertical lines that shift color any suggestions?
Hi mate just wondering that my tv was blown by lightning and it was through the lan wire for internet to the smart tv and it wont turn on ,so is it main board gone or powerline gone do you have any idea ? thanks
Sorry to hear! If you are certain that the power surge came through the lan cable then most likely you probably have a component(s) damaged on the main board. Before buying a new main board I would recommend that you test the power supply (like in the video) to make sure it has no problems. You can also search the main board for any visible burn marks for clues to where the problem lies.
great video!!!!! what about a 4k tv?
Thanks! Yes, a 4k TV would be similar. The main difference between a 1080 and a 4k is the lcd panel itself. There would still be a main, power, and sometimes an led driver board.
Thanks for the interesting post. I have a Samsung Tv which was hit by lighting too however the standby light does come on once the power cord is plugged in, no visual all I get is buzzing sound from the Tv. What could possibly be wrong with the Tv?
Thanks in advance👌
Thanks! Did you check the voltages or try to isolate the problem to the power board or the main board? Can you hear which board the buzzing is coming from? (that would be a clue if it were me).
Thanks @@FrugalRepair I have not opened the Tv as yet. But will certainly do so soon.
just had a major lightning strike this evening...no thunderstorm, just a loud crackling of lightning one time. Iwas watching TV at the time and when it happened i could hear a clicking noise coming from behind the tv...I have 3 surge protectors...tv was plugged into a really good power surge protector..now i have no power light no pre amp light nothing...everything else is ok, computer, receiver, modem all are plugged into same surge protector and they survived....is there an internal reset button on my tv perhaps? it is a Sharp LCD tv model # LC-50LE442U it's about 4 years old...costs about 600.00 to replace it. what should I do? thanks for reading this....
Sorry to hear! The light in the front of the TV is called the standby light. Check the fuse on the main power supply (unplug the tv and take the rear plastic back off ) as a first step. Watch the video and let me know if you have more questions. There isn't a reset button, unfortunately. But if you have a multimeter and a screwdriver you can fix the tv yourself. The problem is either on the power supply board or there is a short circuit on the main board (which was the issue on the tv in this video).
@@FrugalRepair I have a Sony XBR-65X900B I also was hit by lightning through cable and replaced both the power supply and main board and still TV will no power up. When I plug power in outlet i hear something engage on power supply, I then push the power button on tv. I hear a click but still no red light on front of tv or does it power up. When I pull plug from tv I hear the power supply make a noise almost like a contact sound. Any ideas ?
My neighbor and my TVs both went out at the same time. We think we got his problem worked out, but I haven't been able to figure mine out yet. My TV (Samsung UN40FH6030) is turning on, however the screen is VERY VERY dim. The controls seem to work as well. I checked everything in this video but none of it seems to be the issue. The main board looks clean and none of the chips ~look~ damaged, though I DO think it died through the HDMI (my PS4 completely died in the surge). Any ideas other than dropping $60 on a new board?
The dim screen is the backlight. did you try going into the settings and increasing the backlight (ie screen brightness) on the tv? let me know. if all of the functions of the tv are there (except for the dim screen) then your problem is probably not the main board. It could be the led's (backlight) themselves, the power board (which supplies the power to the led strip), or some TV"s have a separate led driver board.
Thank you so much. My sister has a Emerson tv and hers got hit by lightning recently during a severe thunderstorm. Now the tv changes channels by itself and the buttons do not respond correctly.
Sounds like either the main board got fried, the button bar (input bar - the part with the actual buttons), or both got fried. If you have a separate input bar, try disconnecting that from the main board and use the remote control to operate the tv and isolate the issue.
Thank you so much.
Lightening attacked mine tonight, Samsung UE48H6400AK, works still but it's like the volume stuck down and on off button on the remote, even when i remove batteries.... Standby flickering aswell
I watched half of this video a few months ago (I'm impatient af) so naturally I figured it was 1 of the 2 basic repairs.... Just before I decided to go MacGyver on my TV (like I do most my projects) I wanted refresh my memory (how not to electrocute/french fried myself and what specifics I will need to have to order another board)
When you mentioned storm surges, other devices, HDMI ( 🙌 ) TV was connected to Blu Ray and game console, only the TV was "Frankenstein'd"
Thank you for sharing your video, wish I saw its entirety the 1st time months ago, my eletronical-puppy dog company keeper would have done been fixed already.Thank you again
Question tho, if all my electronics are plugged into a surge protectors should this have happened to my TV at all?
Thanks for your comment. What was damaged on your tv, was it the power supply or the main board? I'm not sure how effective the surge protector would be. I guess you'd have to see the technical specs on it and what it would protect against.
Nice I've been looking at a TV from the powerboard side after a lightening strike - didn't think of the connectors to be a problem
I'm glad to hear that you are tackling the repair! Let me know if you have any questions.
I lost one tv and the attached satellite TV receiver two months back and now another Tv (both old tube type) along with their separate satellite TV receiver. Both connected to the same dish having a dual output C-Band LNB (so actually two separate LNBs inside as both have separate polarity adjustments). Both TVs were also connected to the same Cable Tv system using a splitter.
The technician said both TVs had the Audio/Video in/out sections burnt. One of the Sattelite Receivers also had audio/video "Out" sections burnt, the other receiver powers on (Displays ON) but does not boot ( this receiver has no burn signs and perhaps the software got corrupted).The technician suspected surge from Dish but the RF tuner sections of both receivers are not burnt.
Both TVs sparked at the power plug in the wall socket when switched ON and died.No power up light whatsoever. The first TV showed full continuity at the power plug but the second TV showed an open circuit at the power plug.
I checked the voltage on the Coaxial Cable (RF cableTV) and on setting my meter to DC it gave 0.7 to 1.6 volts (shows -ve when I switch cables so its perhaps a DC voltage) and when I set the voltmeter to AC it read 11.4 volts. Now I have a new LED TV and dread the cable could do harm. The technician says 1.6 volts DCis OK as the cable booster can add that (I doubt).
Please help me diagnose the cause as I don't want to lose my new TV. I have pics of the burnt receiver board if someone wants to see.
@@Examoon The technician opened it.25k volts you are right.Actually I wanted to be sure whether its was the cable TV RF or the Dish RF that caused the trouble. Later I checked the Cable TV was passing 13v AC.I wonder if that was the culprit. I need to be careful with the new TV so research required. The surge protector is for the mains I believe .
Yes. I got 4 power sources and 2 tvs mesed up bu lighting. My sony android had external power supply so i just bought a amazon replacement. But my 55 LG tv have the power source inside . So i have to troubleshoot.😢😢😢
I had a power surge and not lightning now my 42 inch flat screen will not come on. I will try your advice and see if I can fix it my self.
Sorry to hear about the damage but good to hear that you will give repairing it a shot. Let me know if you have any questions.
I can't see any damage on the main board and the power board passed the fuse check and standby voltage check. Should I just replace the main board even though I can't see any damage? The TV shows no signs of power or sound when it powers on.
Hi
Where do you get the schematics from?
Thank you for posting. The lightning struck a tree in my mom's yard about 2 weeks ago. The TV was plugged into a power strip (not surge protector), it was not on at the time, and the only thing attached to the TV was cable for antenna. The LED indicator light does not come on, so I will take your suggestions to see if I can pinpoint the issue. It is an Element ELEFW328. The lightning got the base of the pine tree pretty good.
Good luck! Your issue is almost certainly either with the power supply or the main board.
I have an Element 19" that's a few years old but probably less than 100 hrs on it. It is a spare. Began using it in my RV and the picture went blank. Then the sound almost immediately after. It has virtually no hours. I was here and there was no storm. Any suggestions ? It was more expensive than the other TV's so I assumed better quality. Thanks
Just wondering if not standby voltage process just replace power board?
You could do that. But I’d try to figure out what the component is bad first.
HI FROM GREECE TEAM.I HAVE ONE SONY SMART TV 55 2018 MODEL.AFTER LIGHTING STRIKE TV IS NOT WORK.I BUY NEW POWER SYPPLY BOARD AND TV NOT OPEN.STAND BUY LED LIGHT NOT WORK,MAYBE IS MAIN BOARD TO CHECK TO BUY?THANK YOU VERY MUCH :)
No but I need help on a phillips 50 in roku tv; it comes on, standby light does a double blink over n over, back lights work, I can see them cause I have the back off, I remove one of the buffer ribbon s from tcon and one side has Pic black on other opposite affect wen I reverse the ribbons the other side of the t will have Pic and black on other. No obvious damage to any boards getting 120 at source. Chief complaint was; they had a power outage, only used for light video games, at first Pic went out, by memory he could toggle to tv and hear the TV shows just black screen. As I mentioned back lights are in operation (they work),
Modle 50pfl4756/f7 w
Where do you go to purchase new boards? Ebay, Amazon, etc.
I usually use ebay.
TVPartstoday.com Great prices (although shipping is a bit high) but received within 3 or 4 days.
My tv turns on and I can watch with antenna but my Roku HDMI does not work. Was Struck by lightning yesterday fried the modem when I try to put in another Roku device in it with a different HDMI it does not connect so I’m going to assume is exactly what you’re showing us but I don’t know how much a board would cost do you know roughly the cost of a board and where I would get it for a sharp tv?
Find the model number on the back of the TV, then look on eBay for a main board.
Ok I've figured out that my fuse is blown. How do I remove it and where can I get another fuse? Thanks great video..
You may need to solder it out. Some of them are only held in by clips so you can pop it out. You want to match the specs on the current fuse. So it’s usually printed on the fuse or on the board
@@FrugalRepair thanks for the help . this is the most informative how to video I've seen.
I just had a lightning strike, and it took the Xfinity router, the xfinity flex device, and my TV. The flex device was connected by HDMI. I am pretty sure this is the problem. I may try and fix it depending on the cost of the board.
Where do you buy replacement boards from?
Usually eBay
I have a Vizio LED tv that I came home to and it just keeps powering on and off. Can’t use any function. There was a storm recently however I wasn’t home. Any help appreciated .
Is it powering off at the same point? Or does it shut off at random times? Does the tv stay on long enough to get past the Vizio logo when it boots up?
No. It boots up to the logo. Then shuts off. That’s as far as it goes.
@@edwardfessenden589 Hmm, I'm not sure. I'd try disconnecting everything and then testing boards/peripherals and adding them in one at a time. You might have a shorted component that when the tv gets to a certain point in the boot process that it shorts out and takes the tv down. For example, the hdmi mux chip (like in this video) could be damaged.
FrugalRepair tested power supply board stand by voltage and it is ok. Would T-con board cause tv to turn on and off by itself? I’m thinking main board needs to be replaced. Don’t know how to test main board
I have three old TVs. They're from the late 80's to early 90's. One has a bad picture as far as color. Another shows a flat,squeezed looking picture. The third TV's power doesn't work. It may need a fuse. Anyway, I'm considering throwing them away instead of getting them fixed. My question is do any of these old TVs have any valuable replacement parts inside them that would sell on ebay?
I doubt they have any value. I don't think there are people still fixing CRT's. But who knows, maybe there are?
Ok so I have a question......I got a tv for free and the fella said the tv doesn't work.....but it does turn on so what could be the issue. It has a dvd player which doesn't read but I have high hopes it may be an easy fix. Any advice or assistance would be greatly appreciated 😊
I had a power surge, even thought the tv and internet box were plugged into a power surge strip. I just noticed the internet box restarted and something happened really quick. But now the antenna that I have plugged into the tv isn't working properly anymore. I get all kinds of interference except on the singular numbers; channel 7 but interference 14 and up. I bought another antenna today thinking that was the problem but my tv still has the same interference. Do you have any idea what I need to do? I have a Bravia tv also.
Perhaps the surge came through the coax cable? That damaged the main board. If I remember correctly, channels 14 and up are UHF channels and use a different frequency than the lower channels (VHF). There may be a damaged component that helps decode that signal on your main board. Do the HDMI ports work? If so, you can get a coax to hdmi box and run your cable through that. I think they are like $15-20.
@@FrugalRepair Yes HDMIs work. I have a fire stick and blue ray dvd player connected and they work. Can you share a link, what I need or something so I know how to connect it. This is all very very greek to me ☺ Thanks!
@@vickypuckett4104 I think you can search on amazon for a "coax tuner with hdmi output"
Where did the new board get purchased from ? Thanks in advance.
Ebay
@@FrugalRepair Thanks much. Excellent video btw. Her refrigerator is one of those big expensive side by side with the big chest drawer freezer below. The digital board where you adjust everything is lit up but like when a digital clock goes bad, whole numbers don't read, parts of what you see are missing AND when you try to change anything, you can bump it up or down but it doesn't respond to the command. The 'enter' command doesn't work. A friend is in a gospel quartet and one of his members does appliances and says it has two boards and the one showing , if it looks funky , could be the culprit OR both could. He'll check it for nothing but it's WAY out on the mtn and takes an hour and a half trip to get there. In a situation like this, even costing me $150 + to get it to him and back, would throwing a board in it be advised, especially when you see it reading funky or should I bite the bullet and take it to him? I appreciate your time. It's expensive as hell and a only couple of years old, maybe ...3? I picked up a cherry black mid 90s side by side at an estate sale for $75 cash to get her by. She has lupus and didn't even know it got hit until she recovered from an attack and opened it up 3 days later. Woe! It'd knock ya down. I had more in getting it out there than I gave for it. Lol. I pay a friend to do it btw. Truck poor right now.