The all wise and knowing manufacturers know that resources are infinite and people should hand over all their money to them.

5 year 😂 , mine one not even lated 1 whole year

U are absolutely right. Imagine calling Vizio and the only thing they can advise is that I go buy a new tv because they know if will cost me more to fix it. This is a $700 tv that have only used for 3 years 😢. I really wish someone could sue them for using inferior materials in making the tvs of this generation and extorting money from people by charging so much for them.

My samsung 7 series purchased in 2016 is still running strong. 🤛🏼

I have an old one that I got at a yard sale from like 8 years ago. I use it in my bedroom and it still works. The thing had to have been 10 or 20 years old when I got it and it’s still kickin ! This one is about 3 years old and is junked

3am for me😂

Fr

Even if the intermittent connection could be fixed with solder (it can't), no human being could possibly fix it the way you propose.

@@LawrencePina definitely possible for a human to do it. if we can repair torn flex cables from parts inside of iphones, doing what I purpose with this TV would probably be even easier. Not sure if I have videos of me doing flex cable repair on my youtube channel but I definitely have a video or two on my facebook page.

😅😅😅

According to pages 40 and 52 of Kent Liew's 2016 "LED/LCD Screen Panel Repair" ebook (available from LCDRepairGuide.com), all white screen is caused by loss of VGH (VON) voltage from the source driver board. When VGH is present, TFT cells in the LCD panel switch ON and the display shows. If VGH is missing or abnormal, symptoms will be "slow motion, white screen, display darkness or display blank." We also learn (from Kent Liew) that VGH typically measures between 20V and 30V. The VGA test point on this TV can be seen at 06:49 in the video. Although not shown, I measured a steady 19.8 volts both there and on the trace at the input of TAB/COF. It didn't matter whether the screen was all white or displaying normally. 19.8 volts was always present. Based on that (assuming Kent Liew is correct), it's reasonable to conclude that the VON signal is intermittently lost somewhere inside the TAB/COF. One thing I know for sure, probing with a cigarette lighter is not going to fix it.

As currently manufactured, COF cables are attached to LCDs with conductive adhesive applied via a robotic, ultrasonic energy machine. Read about the process here: www.eesemi.com/wirebond.htm Regarding the video you saw, did the guy with "real soldering skills" show you the TV working after he "soldered" everything back together? I've seen those videos too and none of the ones I saw show a working TV at the end. Ask yourself why.

If your TV was a low mileage car that had been parked/stored for some time, and wouldn't start (or even roll) now that you need it again, the mechanic would be telling you "It's not the miles. It's the age." When a classic automobile is stored, any gasoline left in the tank turns to varnish. Carburetor passages get plugged The engine won't start. Barely used tires get dry rotted and go flat. Wheel cylinders freeze. Brake lines rot. Drive belts rot. Hoses rot, and so on, and so on, and so on. In the case of your TV, the conductive glue which bonds the COF cables to the LCD has lost its grip. There's no permanent fix for that, but if you squeeze the frame around the LCD as shown at the end of the video, you may be able to restore the picture, at least temporarily. Like classic cars that have been stored, your TV didn't get used, but it broke anyway. Read through the comments. Lots of people got their TVs working again with a tap or a squeeze, typically in the upper left corner of the bezel. Maybe that will work for you. Good luck! Thanks for commenting.

I did see it. Over tightening the rear cover screws doesn't put pressure on the display panel assembly. All those screws do is fasten the rear cover into the front cover. And, if you fasten them too tightly, heat related expansion and contraction (of the cabinets) can cause loud snapping noises. Experience has taught me to snug TV covers but not over tighten.

I'm thinking you might have entered the service menu or maybe the TV got disconnected in the middle of a firmware update? It's hard to say. Also, be aware that the TV in this video is a pre-2012 model with florescent backlights. The very few TCL TVs that have come my way have all been post-2014 models with LED backlights. Big difference between the two types of TVs. The last TCL I fixed had an RF (air TV antenna) connector that had been ripped out of the digital board. Nothing resembling your symptoms. It might help to post the model number and manufacturing date of your TV. With that info, someone who knows exactly what's wrong may reply to you. Good luck! Thanks for commenting.

@@LawrencePinaThank you for your reply. Will do that.

Audio problems with online videos are often caused by browsers and/or browser plugins. Audio difficulties can also vary from OS to OS. Firefox always works for me when I'm using Windows, but often fails to play audio in Linux. Did you try Chrome? It always plays audio perfectly for me, no matter what OS I'm using.

Sorry. Bad JVC GRD750uc miniDV camera has been retired. There are no parts for them and they all break the same way.

Lawrence Pina Don’t blame people for you’re inability to properly encode audio in the format KZfaq wants. Pathetic response. Typical Boomer.

@@mightymouse5930 you're trash

What a great example of whether zebras are white with black stripes or black with white stripes. Here's why I say that: Three things commonly go wrong with LCD/LED TV displays. 1. The tiny LEDs mounted below the diffuser caps burn out (shorted condition) causing instant safety shutdown on powerup. 2. The diffuser caps fall off causing very bright white spots on the screen, but that's not your problem. 3. The tiny LEDs mounted below the diffuser caps burn out (open condition) causing dark spots on the screen. Your TV is almost certainly suffering from dark spots, but you ask this question in context of "whte spots all over the screen" meaning you might be someone who sees the black zebra. That's what makes your question so interesting. From your description, I'm guessing 1/2 of the individual LEDs in your TV have burned out. When that happens, it's best to replace all of the LED strips. Note the part numbers on the strips and see if you can get brand new ones (not used/pulls and definitely not remanufactured strips) from aliexpress.com. If the price is right, you might also want to pay extra for 7 to 10 days guaranteed delivery service. Otherwise, with free shipping service, the order might take 12 weeks or more to arrive. To learn about dark spots caused by burned out LEDs and how to confirm that this is your problem before ordering brand new LED strips, please watch: LG 42LN5700 - 47LN5400 LED TV Screen Repair Secrets, and LG 50UH5500 UHD Smart TV Repair Secrets. Good luck with your repair, and thanks for asking such an interesting question.

At least you know what's causing the problem and even if you can't fix it permanently, you're less likely to spend money on replacement boards that are not going to fix it. Not knowing is what bothers me...

@@LawrencePina o09

Lyndon, It's not the T-Con board. White screen is caused by loss of VGH (VON) signal to the LCD. Cause has to be the same as shown. Either there is a loose or corroded LVDS cable (not making good contact on one or both ends) or an open TAB/COF on the source driver board in the display panel assembly (exactly the same as shown in this video). Did you try squeezing the bezel as shown at the end of the video?

It might help if you told others the make and model of your TV. Without that info, no one is likely to offer anything useful.

@@LawrencePina HT17E12-200

In my experience, older Sharp TVs tend to develop loose or corroded LVDS connections on the source driver board. You may have to remove the display bezel to do it, but reseating the upper LVDS cable connection may correct your problem, permanently. It's worth a try!

Possibly because a metal frame is preventing you from squeezing the TAB/COF. Try shimming something between them. In this video I used packing tape. Others use rubber bumpers. Fill the void between the frame and the cable and you should be able to affect the problem even after the TV has been put back together. It's just an exercise. Other than replacing the display panel (not an option because you can't buy them here in the US) there's no permanent fix.

@@LawrencePina for someone that knows a lot about TVs he should have a lot more subscribers.

Not possible (without replacing the LCD), but at least you know what's causing the problem now, and you didn't waste any money on TV boards that are not going to work for you. That was the whole purpose of this video - to save smart people like yourself, both time and money.

I'm having this same problem with my Hisense Roku Tv

try this kzfaq.info/get/bejne/mNOmecSHteCVl30.html

Vizio has major capacitor issues and their caps are normally JUST enough for that model. If you buy replacement caps, step up to a higher level capacitor. Worked for me on Vizio's.

Check the ribbon cable(s) connecting the PCB to the screen. White screen is caused by a bad connection. Thanks for asking.

I've never tried to duplicate the experiment using a radiant heater, so I don't know whether that method is going to work. Even if it does, it's not going to fix anything. You'll still have to deal with the problem which is invariably in the display panel assembly, NOT on any of the boards.

White screen is caused by loss of VGH (VON) signal to the LCD. Cause has to be the same as shown. Either there is a loose or corroded LVDS cable (not making good contact on one or both ends) or an open TAB/COF on the source driver board in the display panel assembly (exactly the same as shown in this video).

Other than proceed as shown in the video?

I don't see how a power failure could have caused this problem. Most likely the TV has developed display panel failure exactly as shown in the video. Squeeze the bezel. See if you can get the picture back.

did you fix it? i hasve the exact same issue

Punch the back of it and it will go back to normal. Then go to anger management class

Generally speaking, flickering horizontal lines indicate a problem on the main digital board. But what's the make and model of your TV? Maybe someone will have seen those symptoms on that exact same TV and be kind enough to tell you exactly how they solved it.

Thanks for replying it's an Acoustic Solutions lcd28605hd.

I bought it in Argos in 2007. Works ok after 20 minutes but is a real nuisance as it's a bedroom TV and I don't have it on all the time.

throw your main board into a oven at 375° for 10mins then try it! ;) I HATE RIBBON CABLES SOOOOOO MUCH! ESPECIALLY Samsung's 20ft of it and no replacements and all their products have different sizes! uhgggggg! 👎🤣

Noreste de los Estados Unidos: cero grados F en invierno, cien grados F en verano!

Three things you can do: 1. Unplug the TV. Take the back off. Carefully vacuum out all of the dust, keeping the brush well above the circuit boards. Use a clean paint brush to carefully dislodge any stuck dust. 2. Provided there are no children or behaviorally challenged adults in the home, leave the back off. Problem solved. 3. Otherwise, reattach the back and place a small fan directly behind the TV. Any small personal fan, preferably one with a remote control (so that you can conveniently switch the fan ON/OFF as needed) will also solve the problem. Hope this helps. Thanks for commenting!

As long as it takes to reach the temperature shown in the video.

Probably Fahrenheit

US location - 104 °F

Water boils at 100 deg C. You won't be standing around at 104. 😯

I don't know anything about the PS Vita gaming handheld but I do know that one can not solder TAB/COF assemblies. They are not soldered. They are electro-chemically bonded. God bless, 9th Commandment

By "power only" do you mean standby LED comes on, but nothing else? Is there a blink code when you try to turn ON ? Do you get audio but no video? With the rear cover off, an you see back lights through the witness holes? Please be more specific. Start with the model number of the TV...

In my experience, too bright symptom on VGA monitors was often caused by high ESR capacitors on the tiny board connecting to the LVDS cable.

Ganesh Kumar

The purpose of this video was to show that white screen symptom is generally caused by a failed display panel assembly. There is no easy fix. New boards are NOT going to fix a TV with a failed display panel. But, you might be able to make the symptoms come and go by applying heat and or pressure to the upper left corner of the screen. Nothing applies 100% of the time, but in many cases, it's a quick, temporary solution. That's been my experience, but others are free to disagree...

Only if you want to completely delaminate the ribbon.

Exactly. Weather permitting, use the sun as your heat gun. It's eco friendly. It uses no electricity and it costs no money. Thanks for commenting!

No, not a failing capacitor. How could you even suggest that after watching the video?

Unless you want to know exactly what (board?) is causing the problem. Hitting the TV a slap on the side doesn't answer that question!

I'm sorry, but you couldn't be more wrong. There's nothing to solder! TAB/COF assemblies are held in place with glue. Then, their microscopic connections (concealed beneath the film) are made using an electochemical process. You couldn't resolder them (even if you cut away the top layer of film and exposed them, even if you has superhuman eyesight, even if you had nonexistent, microscopically fine soldering equipment and a robot-steady hand) because they were never soldered in the first place. Other than replacing the entire display assembly, the only permanent fix is to replace the failed TAB/COF with new one. That requires a skilled operator and very expensive remanufacturing equipment. Search for "Tape Automated Bonding Machine" to see how it's done...

Not gonna argue with some one that has no experince on electronics... i have more than 20+ yrs experince on fixing tv ... i know how they work and how to fix them an yes they are solder with a machine ... not glue... learn on how to fix tv instead of giving wrg info sir.. tabs are solder on but thats ok not gonna argue with some one that has no experince on electronics... u go ahead and put tape or what ever u want to fix your tv or go put it out in the sun again... just dont do videos on things u have no idea how they work... and fyi glue will not let curents lvds signal go threw .... LEARN HOW TO FIX ELECTRONICS ...

I can't speak to your motives, but there's no shortage of TAB Bonding Machine videos both here on KZfaq and on AliBaba. View them and you'll see that heat is used to carefully remove the old TAB/COF. Acetone is used to remove the old glue residue. Alcohol is used to clean both the glass and the electrodes. ACF glue strips are applied to both the source driver board and the LCD panel. You'll see other chemicals being applied. You'll see a skilled operator working at very high magnification at a very expensive TAB bonding machine. The one thing you're not going to see is soldering equipment and solder. But despite all the evidence to the contrary, you still maintain that this is very bad info and that you can fix failed TAB/COFs with solder. Please, make us a video showing how it's done!

Go to a electronic school like i did get the 20 + yrs of experince that i have than we can talk...i do this for a leaving not for youtube know how's ... so yeah u continue doing videos on how too... but at least learn how to before you try to show how to .....

@Aaron Kiest not gonna argue with stupid people dat dont know shit so yeah you sir have a good stupid day...and f your self

Please re-watch the video starting from 5:45. Good luck! Thanks for commenting.