Dead 4K Vizio TV NO Power Fix! M70-C3 and P702ui-B3
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- เผยแพร่เมื่อ 4 ส.ค. 2024
- Send in your power supply for repair M70-C3
nickselectronics.com/products...
Send in your power supply for repair P702ui-B3
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Dead Vizio 4k LED M70-C3 TV Power supply repair
In this video, we show you how to fix your 4k Vizio TV with a simple capacitor replacement. If you want to send us your board for repair, please see the links below separated by model number:
Parts kit if you want to fix it yourself:
nickselectronics.com/products...
info@nickselectronicrepair.com
520-838-9359
Contact form on our website:
nickselectronics.com/pages/co... - วิทยาศาสตร์และเทคโนโลยี
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Send in your power supply for repair:
nickselectronics.com/products/09-70car080-00
info@nickselectronicrepair.com
520-838-9359
Contact form on our website:
nickselectronics.com/pages/contact
What an awesome video. My M70-C3 wouldn't turn on, but this brought it back to life. And as a soldering novice, the up-close step-by-step walkthrough was a huge help.
Many, many thanks for posting this!
Glad it helped!
This is my first comment on TH-cam. Never soldered in my life. Bought capacitors on eBay and soldering kit on Amazon. Followed your perfectly thorough directions and fixed my tv. You have true mastery of your craft since you can explain a complex topic so easily. Strong work and thank you very much!
Thank you so much for your feedback. This is an inspiring comment to keep making more videos.
Were you buy the capacitors. What’s the model or number? I have the same problem
Hey man i would like to thank you for this video, i had the same issue last week, watched your video, purchased a soldering kit and the capacitor kit from your website, and just fixed the tv. Saved me from paying someone to do it and better yet, saved me from having to buy another 70 inch tv.
Nice work!
Just finished working on my Vizio M60-C3 using your video for reference. You were dead on, the capacitors were the issue and replacing them was the solution. I had no prior experience soldering or any electronics repair background for that matter. This was a first for me and it's seemed to have worked. Thank you for putting this guide up!
No problem, I am happy to hear you were able to get your TV fixed! One fewer tvs in the land fill!
A huge Thank You for this repair video! I bought my 70" Vizio in 2016 and even paid $100 for an extended warranty to give the TV 5 years... but of course it's now 6 years and out of coverage. I started having issues powering on the TV a few weeks ago and was pretty sure something was going in the power supply and wouldn't you know it... today it died for good. :( I tried everything but couldn't get any power light activity.
Seeing as it was basically E waste, I found this video and thought I'm going to give it a go. I'm not an expert with the soldering iron, but your instructions on removing the bad caps and cleaning up the old solder worked like a charm. I was easily able to pull the caps. Then I went to my local supply store and bought a bag of capacitors for .40 cents each (1000 uf @ 16v), swapped them in and the TV fired up like a champ. All told it took me about 2 hours to fix (I went slow and careful) and it only cost my $1.60 in caps.
Thanks so much for this video - it saved me from having to buy a new TV!
That's great to hear! It's a nice TV, it's worth fixing, I am glad you were able to get it back up and running!
Extreme gratitude for making this video. It allowed my to fix my Vizio M60-C3 (same model, only 60" vs 70") and get it up and running again in a day.
In hopes of helping someone else identify the issue sooner. It started several weeks back where instead of the white light coming on and then a few seconds later the screen would come on and the Vizio logo, it started to happen that I would need to cycle the power off again with the remote, then back on for the picture to come up. A few days later that process needed to be repeated 2x, then later 3x, then later 4x, and eventually it would take about 10 mins of powering off and on before the picture actually came up.
Right before the TV completely failed to turn on I left it on for an entire day to avoid the cycling, that next morning the TV just randomly turned its picture off (sound was still going) and it never came back on. I tried to cycle power as before, but this time the white led in the left corner would never even come on, it was completely done.
Overnighted a 20 pack of 1000uf 16V caps and some solder wire from amazon prime, disassembled the TV, took off the power supply board, cut off the old caps, replaced with the new and soldered them on. I replaced all 7 of the 1000uf 16V in the upper right corner of the board, even though only 4 of them, the ones in the video, were visibly bulged. For $20 in parts and maybe 1-2 hours total in time its back up and running. Thanks for the video mate.
Hey Aaron
Glad to hear I was able to help you fix your set! Yes sometimes the failure start to appear intermittently and you have to power cycle the TV a few times to get it to work and exactly as you experienced it gets worst over time to the point where it just completely fails.
Appreciate the comment. I have an M60-C3 with the same symptoms. Also great that you added what type of capacitor to order. Kudos!
@@brianortner7914 No problem! Glad to help. Real kudos to video creator. Good luck getting yours fixed too.
I am having this exact same problem with my M70-C3! It completely died now. I'm SO HAPPY I found this video and to hear that this worked for you. Now, if I can just talk my fiancé into letting me try to fix it myself instead of him buying a new TV!
@@donnac3853 Good luck. Its really not very difficult. You dont even need to know how to solder that well because the components are so large and its not like you are doing printed circuit board mounting, its more like hot glueing craft time. Hey fiancé this person has it!
Awesome Video. Thanks so much. Just got done fixing my TV from your video; total cost $25.00. And a soldering novice like many other folks !! Thanks again.
Nice work!
Thanks for the video I have the same problem and am going to attempt to fix tomorrow.
If you don't yet have the parts, we have them for sale on the website. Check the video description for links to the parts kit.
Exact same 4 capacitors went bad on our M60-C3. The capacitors were bulged on one end and not flat. We just replaced those 4 capacitors and TV came back to life
Nice work!
Thanks for this Gem as it fixed my 2015 M70-C3, and I have no experience in Soldering at all. And if you're not able to get 16V 1000uf capacitors as I wasn't able to, then go with 25V 1000uf. $30 later, including the purchase of a soldering kit, and thousands of dollars richer.
Glad it helped
@@NicksTVRepair aaaaaazzzxl az
@@NicksTVRepair aaaaaazzzxl az
@@NicksTVRepair aaaaaazzzxl az
Excellent video! My M70 started showing problems first with the standby power, then a complete no power situation. Although I'm pretty handy with a soldering iron, your step-by-step gave me the confidence to go inside and replace the caps. Good as new!
Glad it helped!
Great Nick, Can you show us your TVs holder I mean How You stack tvs repaired or waiting for repair. Thanks
Hello,
I have a few videos I am working on right now, but we can definitely do a video about that in the near future.
It's custom made of course and is a huge space saver. Our shop is only 1,200 Sqft but can hold over 100 TV's easy.
Thats what I like to see. Replace bad components, instead of waiting for the board. Seems a cheaper way to fix devices.
Yes sir
This is great. Thanks for the in depth video. I have an M70-D3 that recently died this way. I don't see any capacitors bulging. Is there a way to voltage test this power board or individual capacitors before moving scrutiny over to the main board? If I can fix the power board I would keep the TV. If I have to pay $100 to fix the main board I am binning this TV. It's possible my Roku or PS5 fried the main board over HDMI. There were no storms here.
The M70-D3 has a power supply built differently and does not suffer from the same faults as the power supply. If you have a dead no power issue for that model TV I would expect it to be due to the mainboard.
Yes, there are voltages that you can check on the right connector. The connector will have a legend telling you what voltages are expected out of which pin. This power supply does have some voltages auto turn on, while others wait for a command from the mainboard. Check the standby voltage, your AC detect, and your 12v lines. If you get those, then your power supply is most likely good and the mainboard is the fault.
Now to talk about whether it is worth repairing. Well, financially it would make sense to get the set fixed even if it cost $900. Why $900, that is the cost of a similar quality TV right now. Yes, you can probably find a lower quality 70" for $600 on a special promotion, or sale, if you are patient, but those deals aren't always around, and it's usually the low-quality sets.
As long as the warranty of the repair is the same as purchasing a new one, I don't see a downside. The TV is built very well and doesn't have tons of different parts failing on it. The only part that does fail is the mainboard. So once that part is serviced, this TV is worry-free, there is an extremely low chance of say the power supply going out, or the backlight going out in the future. Newer TV sets are built cheaper and cheaper and fail much sooner than older sets.
Anyways I could go on with that, but we do service the mainboard for your model TV, we charge $129 and offer a 1 Year warranty on the repair.
In my obviously bias opinion, that's a killer deal no one should pass up on.
Thanks for creating the detailed video @NickTvRepairs, i have the same problem in my M60-C3, i cannot figure out what is the rating on my capacitor, it says SG 105°C 1535 (M), i understand that 105 is the max temp bur not sure what is 1535 (M), any idea?
1535 is probably some sort of manufacturing code.
If you are interested in replacing the capacitors, I have a link to my website where we sell them as a kit.
just follow the links in the video description.
Great detailed Video Nick. Thank you. Do you know if the power supply on the Vizio M70-C3 can handle 240V ?
That is a great question to which I do not know the answer since I don't have one in front of me right now. However an easy way to check is to look at the sticker right next to the power plug as it should tell you what input it will allow.
@@NicksTVRepair Thank you Nick for taking the time to reply. The sticker says 110 and 60Hz, I have successfully used my samsung TVs on 240v despite them saying 110 only. I think I will open the back to see if there are any markings on the PSU board. I have heard this sometimes carrys the marking of 110-240v. If not I will just have to continue to use an external transformer. Cheers.
Hey Nick! Very helpful video, thank you.
QUESTION -
If it's a power problem compounded with the TV not working with the sound bar anymore, would that mean replacing the main board? The TV still turns on, but you have to turn it on 5-10 times before it actually comes on.
I'm going to open it tomorrow to check for Amy visual evidence.
It all started when I turned on CEC sound control for my Nvidia shield.
That's strange, I think that could be a coincidence. What I can tell you for sure though is that if you have to turn the TV off and on several times, then it means the capacitors on your power supply are starting to go out and need to be replaced.
@@NicksTVRepair decided to open it up today. Slight bulge on the caps. I suppose I will start with that and then replace the board if it doesn't fix it.
But yeah, the sound issue is baffling. But from my experiences, Vizio TV's are terrible at working with other devices nicely - even their own (sound bar).
Great videos! I got this model and it just recently died. Power light goes on but black screen, no faded picture when flashing light on screen, before i open it do you think its the power board cause if its the main board its difficult to remove the chips etc…
I would recommend you check out this video, as it will go more in depth on how to diagnose the TV.
th-cam.com/video/un7OJLTWtJY/w-d-xo.html
If the repair is to difficult, you can send us the board for repair. We offer a flat rate mail in repair service for the mainboard and power supply. Hundreds of people each month mail us their defective circuit boards for repair. We have all the tools and equipment for diagnosing, troubleshooting, and repairing your circuit boards.
It sounds like I have the same issue. Does the tolerance enter into picking the correct capacitor? One person mentioned replacing the 16 volt types with 25 volts. Also, I read somewhere that shelf life of capacitors is something to worry about. Is that true?
You have to use the same microfarad rating. That is important. But you can use a higher rated voltage for the capacitor, that would be fine. So yes 25v instead of 16v would be totally fine.
Hey Nick have the same set, mine was a strange sumptom though sometimes upon startup the picture was darker than normal and after having it on for a few mins I'd turn it off and back on and it was perfectly normal. Then one day I turned it on and it just shut off. None of my caps are bulged and no surge of any kind. Power light doesn't even flicker with plug in.. do you think it's the power board?
If none of the caps are bulging and you don't have any power then most likely you have a mainboard failure. This is also a circuit board that can be fixed but it's a much more advanced repair and requires special tools and equipment.
If you can find a replacement mainboard, then that should fix it. If you can't find one or if they are very expensive which I do believe they are, then you can also send it in for repair, I have a flat rate repair service for these.
www.nickstvs.com/store/p3008/Y8386674S.html
If you aren't sure and would rather send in both boards just in case to have us test, we can do that as well.
If you have any questions or want to try and troubleshoot further, let me know either you can send me an email at support@nickstvs.com or if you want to respond in the comments I only ask that you post a new comment instead of a reply because I don't get notifications for replies, only on a new comment.
Hey there, just wondering if you recommend looking at the fuse near the power input? The 4 caps on my set look exactly like the rounded ones on yours, but awaiting them in the mail. Just go straight to fixing the caps?
I have never seen a fuse on this model go bad before. I do not recommend looking at the fuse.
@@NicksTVRepair Thank you for the reply! I appreciate the video and your clear instructions.
No problem, glad I could help.
Let me know how the repair goes and if you encounter any issues.
The power died on my M70-c3 so this video may become helpful. However prior to the dead power the TV had been losing back lights, slowly over the past couple years. I still enjoyed the TV. Would it be foolish to try this repair here with the back light issue? Is the back light issue damaging the power supply? Thanks
That I know of for this model the LED strips aka backlight when they go out, I don't believe will damage the power supply. However if they don't get replaced you will start getting dark spots on the screen, which obviously will degrade the picture quality. There are strips available online you can purchase to replace but that is a much more intense/labor intensive/delicate repair.
I cannot find the replacement boards for my P652UI-B2 Vizio TV; every place lists them as "Out of Stock". Can I just replace the set of boards that are listed for a different model # Vizio TV? Or are the boards matched with the screen? It seems that the only difference between models are the Main board and the T-Con ... and maybe the Power Supply.
Unfortunately you can't just swap them out with any other board, they have to be the exact specific part for that TV in order to work. The mainboard for your TV is most likely your issue but as you stated it is out of stock everywhere. This is where we come in, we offer repair services of the boards, so we can fix your board. Check the listing below for more info
www.nickstvs.com/store/p2367/P652UI-B2.html
Do you or anyone know anything about the Kent Liew books I see around the net, seems hard to get any info on them. Are they any good? They appear to have a lot of info in them.
I am not familiar with them.
I have purchased in the past books similar that talked about common faults with certain model TVs and how to fix them, but they ended up not being common faults, most of the issues seem to be one of scenarios, they never really talked about how to diagnose and they didn't have a digital version so it was always very hard to look up information.
Great video! Just a quick question. At the beginning of the video you mentioned this particular customer said there was no power surge of any kind so that the problem likely stems from the power supply. I have a Vizio TV that will not turn on due to a power surge. Will this be a main board issue most likely? I did attempt to replace the entire power supply, but no dice.
That is correct a power surge almost always affects the mainboard and almost never the power supply. That is because the surges come in through the data lines such as ethernet cable, or HDMI. Somtimes it comes in through your antenna or other such cables.
If you aren't sure what needs to be fixed we do service both the mainboard and the power supply. If you would like to send them in, we can diagnose them and repair which ever is at fault. It is however most likely that the mainboard is your faulty board and will need to be repaired.
Here are links to our services
Mainboard:
nickselectronics.com/products/M70C3Y8386674S
Power supply:
nickselectronics.com/products/09-70car080-00
If you have any questions, you can email me at support@nickstvs.com
@@NicksTVRepair Thank you so much for replying! That’s excellent information.
I have a Vizio D32x-d1 that has no 5v rail out of the power board. All the 12v lines are good, and when I turn on the tv, the power light comes on and dims out as it is supposed to do, and I have 3v on the on-off terminal at the power board then. Ground terminals all show continuity to chassis ground. But it never shows 5v at the 5v terminal. All components look fine on the power board, nothing burned or cracked, and no bulged capacitors. Any thoughts?
I have the m60c3 and also have this issue but it sometimes turns on. When its on there are a lot of dark patches on the display and it is wuite dim. Even if i put the bscklight to 0 i etill see dark patches. The tv was free but im not planning on putting $$$ into it. What do you recommend?
" im not planning on putting $$$ into it. What do you recommend?" Then I would recommend you toss it out.
You can't fix the TV for free. You have to at least buy replacement components (links in video description) and install them to fix the power supply and then there is a chance you may have dark patches which may require you to purchase a new LED driver board and possibly new LEDs as well.
I have same exact set and have to remove power cord from back for 15-30 seconds before it will turn on. but only after hitting power button 3 or 4 times will it give me a picture. could this be the power board or is main board a more likely culprit?
Yes, this is a common issue we see with these power supply boards.
If you want I also did another video on this TV and I went into more detail on the capacitors.
th-cam.com/video/un7OJLTWtJY/w-d-xo.html
If you want to send in your board for repair we have a flat rate repair service:
www.nickstvs.com/store/p2638/09-70CAR080-00.html
Hello Nick, our 7 year old M70-C3 just went dark last night. When trying to power it on, the light at the bottom right comes on for 10 seconds, then it dimmed to 1/2 or 1/3 of the brightness, no picture at all on screen. Sometimes, the light would blink then dimmed. Does it sound like a power supply board capacitor issue?
But prior to getting to this state, we did see half the screen with static for a minute or so, could it be the main board is also bad? Thank you.
That sounds more like the mainboard has gone out. Check out the video linked below for troublshooting tips on the M70-C3 TV
th-cam.com/video/un7OJLTWtJY/w-d-xo.html
hi nick, i have the same tv, i have all voltage but the 12volts for the tcom , i did change the mosfet that supplying the 12 volt. but nothing happen, ..thanks
I assume you watched the video and checked to see if you have bulging capacitors correct? If you do, then your power supply of course needs new caps. If not then most likely it's a mainboard.
I have not yet seen anything else other than the caps go out on this board before, so I wouldn't recommend replacing MOSFETs unless you are finding shorts on them.
Hey Nick. I have a Vizio M60- C3. We had a lightning storm a few days ago, and found that my modem was fried. A day after that, my Vizio would not turn on. Open the tv to check the power supply board, and sure enough, I had 2 caps the were bulging. I replaced 6 of them with new ones, and still now power light when first plugged in. I decided to check the small 7 pin plug on the other side of the board and I get zero voltage out of any of them. Can this be the main board and not the power board? Thank you in advance.
Chris,
If there was a lightning strike that affected your modem and your TV was plugged into the modem via ethernet, then I guarantee the power surge traveled through the ethernet wire and broke your mainbaord. Luckily we can fix that if you send in the mainboard.
I just did the cap replacement. The 16v 1000mf caps I sourced were 1/2 the size so I changed to a 25v version. I replaced 3 all the caps you recommended. Tv powered up right away. But the right half of the screen is way darker. I pulled the power supply back out and resoldered all the caps just incase there was a cold one. Still same. Any ideas would be appreciated.
Bill,
You said "I replaced 3 all the caps you recommended" is that a typo? What do you mean you replaced 3 caps but also all of them?
Make sure to replace all of them because if you don't you could have more issues soon after.
As for the dark screen post repair, it's likely due to an led failure. One of two things could have happened.
Either the LED's just happened to fail around the same time your power supply did, or moving the TV around from vertical to horizontal or moving it from one room to another caused a strip to shift or move slights and could have disconnected on of your LED strips causing a second of the screen to go dark.
If I were you I would open up the TV down to the LED's disconnect and reconnect each LED strip and reboot the set (without putting the screen back on) If this solves the issue then you are good to put the screen back on, if not, then you will need to replace the LED strips.
@@NicksTVRepair yes typo. I replaced the 7 you recommended.
Hi Nick, I stripped down to the backlights. I have a question on the strips themselves. On boot the strips change brightness. Then at rest some of the strips go to a dim flickering. Is that caused by what image is processing?
By the way you've been a tremendous help during this process and I appreciate it.
@@billwhite1818 Sorry, I didn't see you message until now. But yes that is correct the brightness varies depending on what is being displayed on screen.
Nick, where can I buy the 6 capacitors you used to repair your TV?????
Digikey, Mouser, Arrow, are all good options, also just eBay will have some.
I got a free Vizio M50-C1 today from the computer shop, he asked me If I know how to solder, he said he as many customers come in with broken HDMI and USB ports on computers, game systems, and TVs, pay is 50 bucks per port, plus the TV repair he turns away, work is plenty, and so few of us left to do it, I need to practice up and make some real money, I'm a pro with a pencil iron, but not hot air. I don't have much for equipment right now. I have a decent start.
Vernon,
That's a gold mine right there. Once you do a dozen or so, HDMI port repairs are super easy.
It's not an identical model but we have a video on repairing an almost identical board:
studio.th-cam.com/users/videoYt5I267k5fw/edit
This one was one of our very first vidoes we did a year and a half ago so its not as concise and it kind of goes on for a bit but we show you exactly how to fix it.
As for the HDMI port comment I had an LG TV come in with every HDMI port knocked off. I think you may have commented on that video before, it was this one:
th-cam.com/video/Z54O6G8uuJE/w-d-xo.html
$50 per port is kind of expensive and also kind of cheap depending on the device.
If it's an Xbox or playstation, $50 is kind of low. Those are much more difficult to replace and take way more time. Most often you are also expected to completely dissasemble the device and put it back together which takes time. For a TV circuit board $50 seems pricey. We typically charge $25 unless there is trace damage, then we charge closer to $80 or more depending on how many traces need to be fixed.
Before I replaced the capacitors, the board was making a relatively quiet high frequency noise that played on two second intervals, lasting one second. After replacing the capacitors, the noise has changed to a buzzing static electric noise that plays constantly. Curious. It only makes the sound when the tv is plugged in but powered off. (Pressing the “power on” button causes it to go silent) I suspect that it’s the tv’s standby power systems that are causing the capacitors to fail. But I’ve got just one day of electronics experience on account of the soldering I did, so take that with a grain of salt.
A retired neighbor of mine had us bring his tv out to the road for trash collection after it stopped working, and I asked him if I could have it instead. I figured that it would be cool to see what the inside of a tv looked like, and maybe I would be able to see any obviously failed parts and repair it. Realized a little too late that it was a catch 22. If it happened to be an easy fix, I’d be pretty much obligated to return it, and if it’s a hard fix, then I’d be unable to fix it, and I’d be left with a 40 pound paperweight after my curiosity died down. Turned out to be an easy fix, so I’ll return it soon, but I’d like to diagnose the buzzing sound first. Kinda drives me crazy imagining him throwing out the tv again if the capacitors fail when it’s just a half hour fix.
Can you still hear it when the TV is closed up? If no then I would say it's probably fine. If yes, then I do not know as I have never encountered that before.
Working on a M43-C1, stby light on, main board led indicates power and turn on, PSU gets an on signal from the main but no pic, no backlights, BL-on sig reads nothing, no voltage on the Tcon anywhere I check. The two chips are warm. Main board bad?
In my experience yes. I recommend reflowing both the large BGA chips under the heatsink to fix it. If you only do 1 the other might fail not to long after.
My remote doesn't work any more after moving the TV, Did I possibly break the receiver on the TV? Hard to fix?
I have never heard of this happening before. Are the buttons on the back of the TV also not working anymore? If those are still working, then I would agree that replacing the IR might help, but just in case I would suggest trying the remote first as that is a lot easier to do.
If the buttons don't work either however, then you may have a different issue somewhere else with the TV.
If you unplug the TV and plug it back in, does the standby light turn on?
What model TV do you have? Is it the same one as we are working on in the video M70-C3?
It might be best to email us directly at support@nickstvs.com since I don't always get notifications for youtube comments.
I have 16v capacitors to replace but they are half the size of the capacitor on the board. Does it matter or can I use it?
Size won't matter as long as the micro farad and voltage are the same.
If our tv has the same problem from a storm what do we look for on main board?
@@NicksTVRepair Voltage can be higher, just not lower.
Is it really worth it to replace the LED/LCD screen say, a 50", screen on a smart/ 4K? Have a Vizio 50", unit works but the screen is messed up. Thank you 🤓
The screen is never financially worth replacing on any TV screen no matter what.
The screen is messed up in the way that it is not producing picture correctly due to internal failure, that can be fixed, however if you say it's messed up in the sense you kicked the screen or threw a remote at it, then it is physical damage and can't be fixed economically.
@@NicksTVRepair yeah, I thought so. The Vizio I believe has several cracks in the screen, so even tho the TV is trying to produce a good image, the screen is damaged too much. Thank you for the reply & great video! Also have an LG 43" 4K, but think it has a backlight problem!
How you orden the capacitor? 1511(M) ??
I don't know if I understand the questions but if it is "How do I order the capacitors" then the answer is I look at the Voltage rating and capacitance rating and order based on the markings on the original caps.
Capacitance rating will be in microfarad which is abbreviated to uf so look for the V rating and uf rating.
Then go to eBay and find a replacement.
@@NicksTVRepair I Also Have This Model And Need To Replace The Capacitors. The Number Jorge Provided Is What Is On His Capacitor. My Capacitor Reads... Elite 1535(M) (SG)105 Degrees Celcius. I Had To Scrape Off The Adhesive On The Other Side Of The Capacitor To Read The Value. It's Value Is 1,000 uf 16V
I have a m70-c3. When I plug power in I get the light but it will turn off and on. Never get a picture. The capacitors look fine. Is there any troubleshooting steps I can take to figure out what’s wrong?
You most likely have a mainboard then, you can take a look at this video next to checkout our diagnsotic video for this tv.
th-cam.com/video/un7OJLTWtJY/w-d-xo.html
I have a Hisense power board, the main cap is bad, it puked the junk all out, but next to it is a space but there is no cap, the pads are in parallel so if I added another cap it would double the capacitance, so why is there a blank space with no cap?
The blank space is there because it would cost more money if they made a version of the board without the blank space.
A different version of the exact same board is used for a different version of the TV perhaps a larger model that requires it. The manufacturer didn't want to redesign an entirely new power supply for each TV they made, so they designed 1 power supply that fits 5 models let's say. Then they just fill the components into the board based on which TV the power supply will go into so it works properly for it.
This way you only have to design 1 board, the manufacturing company doesn't have to rebuild the factory to adjust for different types of boards, and it saves time and money.
This is why people say don't purchase the based on the board number aka number printed on the board because that number fits with different model TVs and not all are compatible but instead go with the part number which is the number printed on the sticker of the circuit board.
Anyone have a link to the correct capacitors I can purchase? Same M70-C30 tv
Kevin,
Sorry we didn't have a listing available at the time but we do now. Here are the caps
nickselectronics.com/products/m70-c3psbpartskit
The link doesn’t work
What capacitors can I order to do this repair Please.
I am currently out of stock for the capacitors, but I should have more available in a week or two.
If you want to just buy them yourself, you can probably find some at your local electronics parts store they are 1000uf 16v Electrolytic capacitors. Please keep in mind those are the readings on the capacitors on my board, there are 2 versions of this board, and yours might be different so just check what the capacitors say on your board before replacing them.
@@NicksTVRepair Nick I do have a question for the same tv. I am missing the 12 volts just for the TCOM , I wonder if the capacitor have to do something with it.
I'm on the second set of capacitors. Lasted 1 year. Why do they keep failing? There is something else on the pcb board that is causing them to fail. Does anyone know?
I don't know for sure, this is speculation, but I believe the way the PCB is designed puts a bit more strain on those than there should be, however, I also think the issue is due to the quality of the capacitors.
We have kits available for sale, those are the same caps we use for our repairs. I have yet to see one of these come back for repairs a second time and we have been doing these repairs for several years.
For a link to the repair kit, check the description.
@@NicksTVRepair thanks Nick, this time I put in 1000UF 35V Nichion caps. Went with a higher voltage rating. Replaced 7 of them but the 4 in a row is the problem. I think they are overheating. It's working again. We'll see if they last more than 10 months this time around.
Fixed one of these and now found out that the led strips are also bad lol. Unfortunately aliexpress doesnt sell the strips anymore so fixing this TV will be more expensive than its worth to the customer.
Kyle,
I have also come accross this in the past. In fact customers are usually aware of this prior to the repairs, and for this model I have started telling them ahead of the repair that all we are quoting them for is the repair of the power supply, and nothing else. If there are additional issues found after the repair of the power supply, additional fees will apply.
You can't work for free, if you fix the power supply you have to get paid for it.
Sometimes when I put my LED tester to the strips they appear 100% and I can't detect a fault because they all light up. And yet they are dim after the repair. I have also had situations where the customer gave me an okay on the repair of the LED strips, so we did and post repair the exact same LED's were still dim. We then swapped out the LED driver board, and still some of the strips in the same spots were dim. We know the wiring is good because we can get them to light up with the LED tester.
A bit of a mistery.
@Nick's TV Repair thanks for the comments!
I got my Vizio smart tv back 2022 i heard something blow up inside 😢but somehow still powers on
What is the model number for it?
@@NicksTVRepair not sure Vizo d40f-j09 2022 but already upgraded my tv 4K UHD
Make some nice 90 deg bends in the leads with needle nose, looks better. Just saying.
Yeah but we charge vey little for our work, and it won't affect functionality but adds extra time to the job. When you have hundreds of boards coming in, unless the step is a necessary step to ensure proper functionality, we won't do it.