Unsafe BOOM! with My Mate Vince - HDMI Switch & Blender Attempted Repair
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- เผยแพร่เมื่อ 29 ก.ย. 2024
- Hi, this Tea Break Fix doesn't go to plan on either product. Still lessons are learnt and will hopefully never be forgotten. Firstly, I look at a 4K HDMI switch which either cuts out the power supply or heats up the power cable. Secondly, I look at a handheld blender which has no power.
Big thanks to Steve for sending these products into my PO Box.
Merch is here!!!!! www.puddlt.com...
If you would like to support these videos, please click here / mymatevince
Remember that this is just for entertainment, and I am not an expert in these repairs. The processes in the video may not be the best way, the correct way or the safest way to fix these things. I do love fault finding and trying to fix broken things, so I hope that comes across in this series. Many thanks, Vince.
Hi Vince im glad you ok, great video its a shame how they made the blender like they did and what stopped it from working was a fuse on the board seem like everything they make these day once it go's wrong just put it in the trash thanks for having a go.
Thanks for sending them in Steve. I've had a few comments on the HDMI switch so I might make a quick revisit video on these things. I'll pin this comment Steve so viewers know it was you that sent them in 👍👍👍👍👍👍 If you don't want to be pinned just let me know and I will unpin it. Thanks again.
Wonder why waste fuses if there isn't a way to access it. Why don't companies use a reset able variable in place of fuse or fuse panel. Maybe if they were regulation in place for these issues. I understand the fuse is a safety mechanism but a fuse is to protect the item as much as prevent a fire.
@@christopherdecorte1599 Simply greed, that way you need to buy a new one every time it breaks. It pisses me off the way things are done now, you see machines from the 60's working perfectly still, and that is not just blind luck. They really were built so much better in the past.
@@christopherdecorte1599 Yeah, sometimes they use only the fuse, sometimes they use fuse and a varistor to make a circuit ''breaker''... You may not believe it, but sometimes they don't use any fuse or other security from a short or the overload in the device although the device operates on a high voltage...
Cheers!
I'm guessing the discrepancy between the USB cables is because the first one you showed was of crappy quality, they're often made with aluminum wires (instead of copper) that i guess in this case had enough resistance for the usb power bank to not detect it as a short. The second usb lead you used looked to be of better quality, so its resistance was negligible and the power bank correctly shut down to protect itself when it detected a short at the other end
agree, that's it.
Was just going to post similar, I guess the cable that doesn't cut, out the wires have a higher resistance and are just heating up.
Yes this is correct. The pathetic few strands of aluminium will also be twisted with some fabric to pad it into a thicker gauge too.
There was also a 0.1V difference between the leads. Vince should measure the resistance across the leads and see what's happening.
...which as Buy it Fix it says would explain the heating as well, with 7.5 watts dissipated in it!
Other guess would be that the barrel plug polarity is different, but then they wouldn't have both worked on the other unit.
Well got 2 nice switches and a nice power leads for another project and some random LEDs and such
Medhi from Electroboom wants a cut from this video Vince 💥
Hey vince, in my experience I have never seen a dc motor that can only go one way. (That doesn’t mean that there isn’t) but the board worked. Who’s to say that the motor wasn’t actually faulty (it could have kicked that brush, and got stuck causing a short) and blown the fuse. You powered it backwards freed the brush spitting it out. Maybe the brushes were worn out. It did look tiny. There really should not been a way under normal operation that you could cause that to happen.
The guitar hero push was hilarious..........
guessing the resistance on one lead was higher than the other and thus not allowing the circuit to reach the "cut out" threshold.
old devices have an bottom that screws on the top bit wit a rubber seal that's the safe solution instead of glue.
LMFAO @ the guitar hero "distance" power on!! Before you blew it - my first concern was a motor just sat on a desk like that! Often the torque of it starting to turn can rotate the chassis in place, meaning the wires would follow with it, flipping the PCB up in the air off the table - that could have ended badly, I am glad it blew for that reason! Great video again Vince =D
I was thinking the same about the motor torque thing too, as I did the exact same thing when repairing a Milwaukee vacuum cleaner a week or two ago and it flew out of my hand!
Classic MMV. It’s too cold to go get the broom so he tapes a screwdriver to the end of a guitar hero guitar. My hero.😊
😂😂 Yes, that would have been more dangerous if it landed on my lap repeatedly shocking me with each twitch from my electrified body. Good point Chris, it has been noted for future fixes. Thanks mate 👍👍👍👍👍👍
Definitely stealing that Guitar Hero/Screwdriver combo tool 🤣
Given that Steve sent you two items that had blown up or blown a fuse, you have to wonder if he has a problem with his mains power at home. Thanks for the video.
No Thanksgiving Day is complete without Vince blowing something up. Thank you for the enjoyment today. Love your videos no matter if a win or a fail.
Maybe they soldered the wires on wrong at the factory?
Hey Vince, I've been fixing stuff for well over 40 years and I can tell you that blowing things up is all part of the experience. I used to do repairs professionally but these days I just do it as a hobby but even today I can still have the occasional bang and puff of smoke. Most of the time it's not very dangerous, but a pair of safety goggles is a very handy addition to the toolkit - I had a close call back in the early 2000s when I accidentally probed the live side of a switching power supply with a grounded oscilloscope probe, and got hit in the face by a piece of the bridge rectifier which exploded with one hell of a bang. Since then I've always chosen to wear goggles when working on anything with a significant amount of power going through it.
Glad you didn't hurt yourself with this one. Most of the time, these type of incidents are no more than a good jump-scare, but my own experience tells me that eye protection should be regarded as essential for this sort of thing.
Note that a dim-bulb tester is a handy tool for working on mains stuff - there are plenty of videos on youtube that show how to make one very easily and cheaply, and it's invaluable for saving fuses and other components by acting as a fairly heavy-duty current limiter, and of course a handy indicator of a dead short, lighting up brightly thus dissipating the energy that would otherwise blow something up...
Hey Vince, I have another theory for the blender.
I think the motor was already defective which made the fuse blow originally. It's just a DC motor and polarity shouldn't really matter. But they put a positive sign at one end so that it will only spin in correct direction, and workers assembling it don't have to guess.
About the motor is that sometimes they have a back EMF feedback diode across the poles to protect against reverse voltage going back to the circuit board and if you reverse such motor the diode will short the load. it is likely this was the case or that the motor itself was already shorted
@@Pulverrostmannen I like that explanation.
@@NicksStuff Thank you :)
Hi Vince, I really like your videos. But I noticed that you said the Lord's name disrespectfully in the video. So I was wondering if you could please not do that anymore. It is a big deal. And believing in Jesus and accepting him as your Lord and savior is the only way that you can go to heaven when you die.
And the Bible really is the truth, it even says what is going to happen in the future in the book of revelation. I thought it was crazy when I saw the part that said in the future it will cost a day's wages just to buy a loaf of bread. And there is even going to be a time when Satin trys to force people to get an evil mark on their right hand or forehead. And it will have something to do with the number 666. And people will be doomed if they get it. And it will be to late for them if they get it.
At first people won't be able to buy or sell anything if they don't get it. But later people will be executed if they don't get it. So I also wanted to mention that people that have never read the Bible have misconceptions about it. But if you actually read the Bible and not just a random verse you will see things differently.
If you don't have a Bible I would recommend searching for the NIV version. Most people don't realize how big of a deal this really is. But accepting Jesus as your Lord and savior is literally the most important decision you could ever make in your entire life. And that decision will affect you for ever.
So I just wanted to mention that I'm not trying to make you feel bad. I'm only telling you this because I care about you. There are a lot of people that act like its controversial to talk about the Bible and a lot of people are uncomfortable for some reason. But maybe its because society is different these days. Well it was nice talking to you Vince. I hope you and your family have a nice Thanksgiving.
There is actually one more thing I would like to mention. There are some people that also choose to not think about eternity and they just forget about it. So if they do that, then they are also making their decision. When it comes to someone accepting Jesus as their Lord and savior and going to heaven when they die. The choice is only Yes or No. And there is no other option. So when it comes to the Bible the people that just forget about it and don't think about eternity. They are also still making their decision.
Thank you Vince, for reading my comment. I'm sorry that its so long. But it is really important. And it was on my heart to explain it to you.
Great video, Vince!
My old german mixer is not glued together, it can be fixed any time. And it also has an AC motor, too. That is why I am never going to replace my 45 years old kitchen equipment.
However, if you spin a DC motor at the same direction all of its lifetime, the brushes will wear enough that the motor will get stuck if you try to spin it the other way. That is when it spits out those brushes. In an RC car, you most likely flip the direction from forward to reverse every time you want to change the direction of the car, so that is why it can work in both directions.
Ahh, thanks with the brush explaination
hi i think mains voltage dc motors have the brushes offset so they run more efficiently and better in 1 direction (reduces sparking)
Fixed our Braun mixer of same design a while back, not only does it come apart super easy, they publish the exploded diagram and you can order spare parts directly. For ours it was 5€ ordered directly from Braun and arrived the next day.
i guess that the motor is going to spin the wires and PCB through the air like a 240v windmill of death .... [EDIT: i was wrong but holy shiii i am glad that blew before it turned on, that was exceptionally dangerous ] had me laughing my ass off though, oh Vince you're a national treasure ...thought about getting a job with Medhi @ElectroBOOM? he'd have been proud of that one LMFAO, glad you are okay
Hi Vince, two things. First, the USB lead was probably cutting out due to being better quality, where as the other lead was acting like a heater wire (due to thin cable or aluminium wires) and just heating up and acting like a resistor. The second I think that motor on the blender was shorted before you plugged it in (and that's what took out the fuse initially). I think it would have just span the other way if wired in reverse polarity, so I wouldn't be to hard on yourself with that one!
Thank you Mick, I didn't think of that regards the motor. If the motor was faulty before I got my greasy mitts on it, why did it not blow in that spectacular fashion originally when the manutacturers fuse blew. Could it be that my 2 Amp fuse is better and allowed 2 amps before blowing whilst the one on the board might have blew at 1 Amp although marked up as 2 Amps on the board? Cheers Mick
@@Mymatevince Not sure on that one Vince. Definitely looked like an internal short.. looks like the motor may have been jammed or too much strain put on it perhaps, which may have caused the insulation on the windings to break down and it blew properly on the 2nd go.. I know one thing.. the 'jesus christ' made me LOL!
@@BuyitFixit Made me do a little more than laugh😬 those sparks really flew at me. Cheers for getting back to me. The faulty motor idea makes more sense than the fuse just blowing 👌
I’ve seen a few PCs with faulty PSUs that cause the plug fuse to blow first. Then after that is replaced the next time you plug in the PSU explodes instead of the new fuse.
@@coctailrob 👍
Boy, when I saw the guitar hero being deployed I thought 'crikey, Vince is tightening his G string for this one' 😃😃 Great video Vince as always. Now about the running through the house with scissors video....
Another amazing video ❤️ rock and roll
Electricity is like a wife, beautiful if you respect it and deadly if you don't!
Enjoyable video, Vince!
I respected them both, but muh electric wife killed me!
What an explosive edition Vince and glad you got nothing more than a fright.made for excellent viewing and you should be up for an award for that😂great bit of good honest bodging.
Vince is preparing for a collab with ElectroBoom coming to TH-cam very soon.
Stay safe and keep up the good work 👍😀
14:41 Ready, Steady, i said steady ... 15:06 GO! Take 2 15:12 GO! No, no, no take 3, I said G ...15:32 BOU"shhh (Perfect time for MEME) :D Next speech hit 100 points, right in the middle, between eyes :DDD! You can bet, it was 1000% entertainment! I was wondering when in your carier it will start to happend. Actually it happend because there was a diode inside to protect driver transistor from Back EMF overcharge voltage. If there wasn't diode - it could work as you thought, but firstly the rotor was shorted... Mmm i like bushes ... Oh you mean the president!
READ MORE DOWN!⬇
You wish there was a bush near... :D
Rule number ONE - Safety first.
Rule number TWO - Did you read number ONE?
Rule number THREE - You had to read number ONE.
Rule number FOUR - Check for the reason, not the consequence.
Rule number FIVE - make sure you read previous FOUR rules :D
Is your surname Heath-Robinson by any chance, Vince? I had to laugh at your long range switch-pusher. A wonderful Vince-Bodge. Very bad luck that the odds were stacked against you. Thanks for the enjoyable, if frustrating video
In most cases electric DC brush motors can run in both directions. Some manufacturers adjust the angle of the brushes to minimize the spark generated when the carbon and graphite brushes make contact with the commutator, thus polarity is important as attempting to run in reverse the brushes act like a break and prevent the shaft from spinning. You can clearly see a rather big spark when you first tested it when the shaft was attempted to run in reverse but couldn't as the friction from the brushes prevented it, good work Vince, please be careful with high voltage appliances, maybe sellotape two guitar hero guitars together next time!
On the Blender, reversing the wires won't cause the failure, DC motors can run either clockwise or counterclockwise depending on polarity, my guess is, that DC motor had failed prior to your repair attempt and by wiring it in reverse caused it to show its fault, as @andrasszabo7386 mentioned, spinning a Brushed DC motor in the same direction for a long time, will wear the brushes at a slight angle (as well as the commutator) but my guess is the brushes wore out enough to get carbon dust lodged between the commutator blades and caused a short, blowing the fuse.
I am 99% sure that if you check the brush "channel" you will find some melted plastic {although this "BOOM" may have scorched it a little bit more :) ).
i have the same 4k hdmi switch it draws 0.14 amp @ 5.2v when in standby and no lights are on .when working it draws 0.21 amp @ 5.19v and a led will be on showing which hdmi input is selected.the last thing i destroyed was a gt 710 2gb and an asus x540 laptop trying to connect them with a gpu to m/sata dock.both were unfixable😅.these things happen.
Get yourself a variac (variable transformer) with a safeblock isolation connector...set to 0v and increase gradually...the transformer starts to growl when under load so you know not to increase the voltage any further....safer and less damage than direct connection to 240v....though they are expensive....though how much is human life....?
It's good to see the fkups Vince cos then we know what NOT to do. If a repair goes smoothly, it's great, but the BANGS are definitely more educating and entertaining.
Dear Vince, as useual you are a wild man. Love the sparks but got a lot worried about you. Glad that you are ok. Perhaps you could make something like a vinyl screen between you and the subjekt the next time, like the mythbusters, cause its verry dangeruos what you just did. Love your work, and it show some courrage to show the mistakes. Love from Denmark.
Ps im an old electrician so i have made my mistakes too. Put a fishing ship on fire once, wirefault, not good.
That HDMI switch whilst uneconomical to repair, it may be possible to salvage some functionality out of it as a 2 in 1 switcher? Remove the fault IC - it looks like the other IC routes 3 sockets?
With the blender, your error was not checking the motor for continuity / short. Wiring it the 'wrong' way only makes it spin in the otheer direction. Armature wining dead short, or carbon dust in the commutator spacing gaps would be my guess. Again, sadly today a lot of things ar not repairable but in this case, for safety is understandable.
Really don't think the motor gave a damn it was reversed it was probably screwed beforehand the housing was probably full of soot if you looked up inside it.....
Two hundred and eighty-eight DC, what would it go up too on turbo? The anticipation of plugging it in is half the fun! Your right about a DEC mtr going in the other direction. mtr fault may have been the original problem.
I learned something from this video, DC motors may have polarity controllers that pop when polarity is reversed, stick blenders may have DC motors in them, and that Vince is the most entertaining of the channels I follow.
I'm gonna guess that these are 2 separate fixes, and that you're not fixing an HDMI switcher with a blender
240v motor should work on 12v/ 9v just go slower, so maybe two 9v PP9s together for a car or similar projects
I bet there's a back EMF diode inside that motor and that's why there was that short circuit when the polarity was reversed.
New undies for Vince please! and some new eyebrows! Good video as always! nice to see you attempt it and i am so glad you used a insulated driver rather than haphazardly pressing the button this time.
1 week wait for this video is a shame, was really hoping for rolls royce episode :(
Hi, I have 2 more Rolls Royce episodes edited and waiting to be released, part 29 and 30 and part 31 needs to be edited. In fact the reason for the delay in videos this week is because I been working on part 31 for 3 full days! Hopefully part 29 will be out soon👍
@@Mymatevince Part 29 should have been out today and this video could have been an inbetweener/teabreakfix. We're spoiled of the good stuff you put out now!
@@stzokev Haha, cheers Steve. I'm badly organised! I'll get Part 29 out to the Patrons tomorrow and then live here on TH-cam on Sunday 👍👍👍👍
Didn't expect an Electroboom style video from Vince today 😂
Interesting to see a DC motor used at mains voltage, so at least we know it will have a FULL BRIDGE RECTIFIER! :D
In fact my guess is that this is pretty much all that's in it - full bridge and maybe a capacitor (there did appear to be a big X2 on the board, and the turbo switch probably bypasses another diode on the AC side to limit it to half-cycles. Without seeing a schematic it's hard to know but I didn't see much else on that board other than a few diodes, the cap and a couple of microswitches. It did all look pretty well made though. Pity about the non-repairable case :(
Hey Vince. I appreciate your respect for high voltage electricity. Its too often I see people having no regard for it, and endangering themselves. You have a genuine fear, that will keep you alive for a very long time. thanks for showing people how dangerous this could possibly be.
imagine the guitar strings going live get it ha amazing boom vince that was good lesson on polarity that was funny that bush
any motor that is mains voltage or uses high amperage, or looks beefy should always be strapped down or clamped into place. another thing is to check polarity. yes you are right a D.C. motor will run both ways for a model vehicle and that is because you want it to go in both directions, but a motor that is used like you said for chopping usually has some kind of circuitry to only allow 1 direction. to be fair though suprised no diode in circuit to blow or stop current if the motor is connected wrongly, but as they made it as none repairable then something like a diode wouldn't be needed.
Have you heard of SCR AC power regulators? For example, item id # B07W6P7K71 on Amazon. They're not actually "voltage regulators" despite what all the dodgy sellers call them, but they are sometimes *very* useful when messing around with AC mains powered devices. It's sort of like pulse width modulation for your 50Hz AC.
The basic principle is they "chop" the AC voltage wave using a triac (or SCR) and an adjustable threshold... So imagine your input AC sine wave. Each time it crosses the 0V mid-point, the triac switches off and nothing is output. Then when the input wave reaches your threshold voltage, the triac turns on and passes current through.
So when I suspect something I'm working on might short out / blow up, I hook it up through the SCR set to minimum power and probe around to make sure things make sense. For me it's like when a computer programmer uses a debugger to step through dodgy code. And it saves on blown fuses, charred surfaces, and loud bangs.
EDIT: Also, I doubt the polarity of the DC motor had anything to do with it. There was probably already a short in the motor.
Or the old Lightbulb current limiter :)
hey vince did u get a new pair of shorts lol ?🤣🤣🤣
re the blender, Is it possible the diagnosis was wrong here? I was sure as well that the DC motors should work fine both ways, though I do know that often a positive is marked.. Isnt it more likely that the motor had an internal short to begin with and that is the root cause that originally blew the fuse? I have had cases where due to over loading, the carbon dust from the brushes get inbetween the gaps of the comutator plate and start shorting between the leads..
That said was very entertaining to watch, especially the cartoonish guitar screwdriver :D Appreciate you showing by example to take precautions when dealing with dangerous stuff. (including the lost plug to the presumably MMV cup)
Maybe Karthik, it all looked so new though, even the carbon brushes looked good and clean. Something must have blown the fuse though???? Maybe you are spot on and the original failure was the motor. Nice one 👍👍👍👍👍👍
@@Mymatevince Exactly. I feel that is more likely. In my case it happened to an abused Ikea drill which was driven too hard, so when it was run without the motor being able to turn I believe the damage occurred. After that onwards, it always ran hot, weak, smelt of ozone and discharged fast, and quite a few sparks in the motor. I tried to clean the commutator with IPA + cotton buds.. but that didnt last too long, and only recently replaced the motor completely.. (for a cheap drill the gear was on so tight, it took me forever and an almost ruined gear puller to pull the gear off :D)
@@ktaragorn 👍👍👍
the cable section may be the difference between the two. the thicker cable can carry more current which the power supply interprets as abnormal consumption and shuts down. the cable with a smaller section carries less current which is not sufficient to trigger the protection mechanism.
Looks like in the HDMI device, each chip controls 3 outputs.
If you remove the destroyed chip it should allow you to use the remaining 3? Maybe?
I was thinking the same. Easy thing to try too. Might only leave 2 working ports though as it's a 5 input device. Depends how ports are wired to the two chips.
I too would not have thought polarity mattered.
Deniability we saw nothing ROFL
I think there was a back EMF protection diode build in the motor and the brushes were probably mounted under an angle. Reverse powering up will first result in an exploding EMF diode and when the motor start to spin backwards, the ejection of the brush(es).
The internal fuse was not fast enough to prevent this.
Your first theory about the motor was correct, the plus determinate the direction.
I think your motor was the fault.
For initial testing of Mains Gear, I use a short power lead that has a bathroom heat lamp fitting (switchable 2or4 275W heat lamps) in series with the active wire. Instead of FLASH BANG you get the lamps lighting when there's a fault. Might have saved your bacon as the motor brushes (motor refusing to rotate backwards) might have survived?
(The lead incorporates an earth leakage/over current breaker also)
Video content was explosive! Dynamite job! Electrifying! 🤣
Glad you weren't hurt. Life lesson I suppose. Been there myself.
😂👍 Yes, I hope I never make a mistake like that again!!!!!
@@Mymatevince All part of the learning experience mate - we've all done it, and even today, I still get the occasional boom after doing this stuff for over 40 years :)
One USB cable will have a higher resistance and is acting like a resistor to limit current... try measuring the lead resistances and you might be able to see it.
Vince let it boom! Great video. And to say it in "U.D.O."s words, one of my favourite songs of him: "Man and machine - it's a dissident team And it's gonna be all over when a fuse is blown."
so they put a fuse in but make it impossible to replace it. where's the logic in that?
Maybe extra protection so that when thr user puts in the wrong fuse (can happen) it blows and keeps the device from blowing up in your face idk
You should change the thumbnail to be the arc flash @15:43 I think it will get more clicks.
the hdmi switch blue just like the mat
The cheaper lead has higher resistance, which limits the current and keeps the power bank from cutting out. You should be able to test that with a multi-meter.
Vince you are a character.😂 The screwdriver taped to the guitar hero guitar made my day. Keep it up always entertaining.
This has to be the most British repair video you've done. Made me laugh when you said "Maybe I'm not pushing it hard enough" after it had already popped twice. Then it turned into British comedy gold when you pulled the guitar out with the screwdriver stuck to it. Excellent entertainment indeed and I got to learn a few things to.
One lead probably has lower resistance, so with that one enough current flows to trip the short circuit protection, but not with the other.
The USB has a higher resistance than the other one, It`s made of thinner wires or crappy wires, DC motor or ac motors do not care about polarity, I think one of the diodes are leaky
Thanks AR. Regarding the possible leaky diode...would that be one of the 4 diodes converting AC to DC or one of the components in the actual motor?
@@Mymatevince Yes or the motor is burned out
@@AnonymousRepair Cheers AR👌
As always, very entertaining Vince. I will do my best to not copy you 😜
You know Vince ever since electronics jumped from the valve to the transistor then ic its always been a mystery to me. It's only thanks to your videos its become much clearer. As to the boom from the blender, I have to say I do that more often than not the latest being connecting the 240 volts to the low voltage end of an LED light transformer. The last time before that I blew up the solar panel inverter. Life, where would we be without it, it's a constant learning experience. Thank you for this video and all the others Vince its always a pleasure watching you repair stuff a real pleasure.
I bought a £20 Amazon bread maker which had a bit of an issue of turning itself off during cycle, was a cold solder joint and what a palaver getting inside that, tapped up the joint and been making gorgeous breads using Canadian ultra strong bread flours including cheddar and red onion bread, egg and bacon bread, cherry tomato and herb bread... been really enjoying meself def recommend one if you see one on the cheap m8
Very nice!
I'm just glad your okay vince, great video as always, thank you.
The difference between the cables are that they are different quality, Cheaper ones have thinner wire and act more like a resistor in high loads limiting the current. And some motors have a back EMF diode between the poles to protect circuits from voltage going back into the board and then this diode short the load if you reverse polarity, that or the motor was already shorted for some reason
I'm sorry Vince but I laughed so hard. But I am glad your OK take carry. Great Video.
By the way, been there.
If you've never tinkered without seeing sparks or getting a shock, you haven't tinkered properly :).
Vinces first bang ....
Answering your question - the first thing I thought when I saw you soldering the motor wires was - he didn't check the polarity - and seeing the wires were red and black, that could probably cause problem. But that's absolutely OK.
On the other hand, manufactures producing items that cannot be repaired is a clear sign of how stupid we are as a species, considering we only have one single planet to live on. Remember Wall-E? Those guys had a spaceship to go to when things got impossible here, but what about us?
Yip Vince easily done, you can get complacent and reverse the polarity.
My claim to fame was working on the contactors in a bank of supermarket freezers.
I set up the new contactors making certain they corresponded to the correct freezers (7 in a row)
Wired it all into the service board, switched it all on and their was an almighty bang, bright flash and loads of smoke that could be seen and heared all over the supermarket, the mains trip switches blew putting a large section of the supermarket into darkness.
It took 3 hours to restore everything back to how it should have been after having to rewire the complete service board.
Yip I double checked the polarity this time, luckily no damage to the freezers.
This happened around 4 years ago, the manager still gives me funny looks as if to say,,, oh no not him again
For a second there I thought I was watching an Electroboom video!
Keep safe Vince and don't let things blow up in your face. You might consider a face shield, we don't want anything to happen to your rugged good looks.
Hi Vince, I have tried to fix a blender that looks almost identical. There are two things about this blender. First, I also found it extremely difficult to dissemble it, but eventually I've found that there is a hidden screw behind the button panel that hold the upper and lower chassis together. If you peal off the button panel, you will see the screw. Second, I also found a blown fuse on mine. I replaced the fuse and tested it running great. I happily returned it to my wife but found out that the fuse blow again if the blender is used on any thick or sticky paste. When I tried to fix it the second time, I found that the brush as well as the motor commutator is so wear off, and that's why the motor lost strength and the fuse blow so easily. I tried to find the same motor to replace it but it is almost impossible.
😂 Pissing myself laughing at the guitar hero screwdriver part.
Can we make a tshirt with that contraption pictured? I would buy it in a heartbeat
@@Chris-cj5rh definitely would be the first time I'd consider buying TH-camr merch
It make no sense with some sales i bought a ps1 game other day for £2.99 the postage label said over £2 i wanna say £2.15. werent really worth selling.mseller then realised theyd sent me wrong one and was going send correct but i only wanted ut to test a console id bought to mod chip. So would of been another cost. Turns out discs i was burning with ended up being the culprit for not working. i was thinking id buggered up the chip my first attempt at something like that. Always fixed things but never added to or modded something.
My dad's got the exact same hdmi thing, I even made a comment on a way earlier video you made (I think) and that switch was similar. The only issues we have with ours is sometimes it doesn't switch properly, and the XBox 360 we have only output through it once and was rainbow on the tv.
Some hdmi switch cables have a huge resistance!!!!!!! thats why some cables will get warm!
ok, i know this is older-- but from what i have seen.. as a brother across the pond... maybe stick with devices that run on batteries for the time being :D ty for the videos-- just use care,, 350v into a thumb can hurt ;)
Hi Vince. Thanks for the video. The difference between cables should be the resistance. The one that shuts down immediately should be a good cable and low resistance, the other one should be a low-quality cable with more resistance. That's why it got hot but still lets the current pass through.,
Another possibility with the USB cable is the differential pair wires ( data + data - ) some cheap cables only have +/- ( DC 5v ) wires in them and that would just keep applying power, however if the pair ARE there and not terminated properly at the barrel jack end (as their not used) or just grounded then the power bank would see a short due to the blown chip and switch off instantly. It's definitely down to quality as other viewers have pointed out about crappy AL wires instead of CU but I have seen people get in a right pickle with el chepo USB's. Yeah I figure that's a Permanent Magnet DC motor (PMDC) you have there and you won't forget about them again !....cheers. and a squeak for the blast.
The USB lead will have a resistor across the data pins which tells the power bank the devices power requirements. My guess is something about the different resistor values and the fact the device is faulty is causing the power bank to behave differently.
I'm sorry, I'm not happy about someone else's evil, but seeing it explode really made me laugh a lot. I had a good time. I feel like maybe the author didn't. Ugh, tremendous video. I'll put it on a loop at the moment.
2017: Vince fixes Nintendo Switch
2022: Vince fixes 4k Switch
One day this man is going to kill himself playing with high voltage power...
Really good education video on what NOT to do when you don't know what you're doing
the problem is the engine from the beginning. always measure resistance if it is excessively low there is a short ,a very high resistance needs more amps (parts worn by use, bad contact).These motors work in any direction, they are marked for assembly at the factory, AC to DC is converted so that the motor always goes in the same direction, that is why both the plate and the motor are marked. the equipment cannot be disarmed if the test goes backwards you should discard it and that is a lose of money an parts (and possible customer complaints and loss of reputation if reach the market)
Putting a fuse inside an already fused appliance sounds stupid. Isn't the 5 amp plug fuse enough already? you really have to put in another one, inside the appliance that can't be open without being destroyed ??
Connecting the polarity incorrectly didn't cause the death of the motor. That is a permanent magnet DC motor and will just change the rotational direction by swopping polarity. What did happen though was the result of a short circuit in the rotor windings.
Steve is good people! I've had a couple of these switches in the past and they always fail after a few months. They're very cheaply made
Side note: I think I have one of these if you want it for parts?
Very disappointing video Vince, you didn’t even swear lol 😅, chances are the motor failed in the first place which blew the fuse !
I don't think the cause of the explosion was the wrong wiring, simply the motor would have rotated but in the opposite direction to that designed, but nothing would have happened, but if the motor winding was shorted, that's another story
Lesson learned. But so annoying that the whole thing ends up as landfill, just because of a 2 amp fuse. As you say ‘race to the bottom’.
When testing switches connect to the pad instead of the legs of the switch, as that will pick up cracked solder joints at the same time.
Good advice Scott, thank you 👍
The HDMI Switch that you tried to Fix are bad anyway, I bought the same one and after a few Days it started to introduce Digital Noise.