Vizio TV Turns On, But No Picture FIX (UPDATED)

Alright, for today we have this Vizio television, as you can see, it will be the m43 c1 model. Now c1 models are very common for repair. They have a few other models from the chain, but the TV looks pretty similar. so the boards are very similar the design is very similar the design all around is also very similar so the main problem with these televisions is that this main board comes out fine and the most common problem that you will see with these types is that when you connect it to the current, which is now and you look at the red or standby light, this one is not red, but you will see that standby light there.

I'm going to go ahead and press the power button here, check that out. which means it is getting power but the screen stays black now if you look at that light it means it is on but there is no

picture

and then it slowly fades to nothing so this tv needs a new main board as you can See, there are lights on the main board. which means it is receiving power so the main problem will be one of these chips, usually in some severe cases it could be some of these as well causing no HDMI output but in my history of doing these repairs is mainly this the correct one. here, this one here usually needs a reball or a reflux.

I've been very lucky with the reflux, it never came back. I've been making them for about two or three years and I've never gotten any callbacks or anything like that, so I'm going. to keep doing a reflow on them so this chip here is the culprit so this is a before and after shot before the after shot I must say it doesn't work at all there is no image on the screen and now I go to take this board. put it on the reflow station and then go ahead and do the rework process, install it again and then I'll show you how the image is removed.

Now let's prepare this board here and then let's turn on this guy perfect to have a The custom profile is already set up here because I see these things very often and all these profiles change depending on the board that you're going to reflow to because you don't want to overheat certain boards. that can't handle the amount of heat and vice versa, okay, so you want to get down to a point where it doesn't bend the board right above it so it floats on top. You see this temperature sensor is still there and then we can just press Start, all good, that's it.

Looks like I'm going to put some of these fancy heat conductors in there so it doesn't get cold. Look, that looks good. Some cooling fan switch action. Hmm, still a little hot. Go ahead and leave this on for a few minutes. I will be back, it's fine, perfect, nice and great. We like that. Great, the better you can see the chip, it's pretty dirty, so we're going to clean this up and after we clean it, we're going to install it again. on the perfect tv, it looks much cleaner, we like that there is also one more cleaning method that we do, it's kind of a secret, don't tell anyone, we're actually going to use some flux under the chip, like this that this is.

Basically blowing compressed flux under the chip, so when the ship gets very hot and these chips generally don't remelt, soldering makes sense. Sometimes you overlook common sense things, but you know, that's why we're here. We'll do it, we'll do it right, okay, the cold vapor pressure is very high, it's almost like acetone, so if it touches your skin it feels like it's on fire, so let's go ahead, let's dry this off. with the perfect compressed air, now it's time to do a little test fit, hot tamale works, okay, all the connections are already in place. My rest is just a very rough test.

You don't put thermal paste or anything in there we just want to let's see if we have video and look at that TV upside down that's why everything is upside down so don't worry yeah no signal the videos are perfect that's exactly what we want watch now. I'm going to go ahead with the boxer and then just try the HDMIs. it's going to be pretty much the last thing so if you enjoyed this video feel free to like, subscribe, share with your friends and family or just submit your board if you have a similar model and want us to fix it let us know we do have it.

The warranties for this service are usually about six months, so if it happens again, the error repeats, send it back, stop by again, definitely take care of them, thanks for tuning in until next time.