BROKEN Lamborghini R/C Car with a Very Strange Fault??? Tea Break Fix

[@tiporari]

Ground was floating. Whenever the capacitors charged the voltage difference between VCC and the floating ground became too small to act as ground and the receiver shut down. The precise time was due to the predictable charge rate of the capacitors.

[@Mymatevince]

I going to pin this Tiporari to help other viewers out. Nice one 👍👍👍

[@Operational117]

I suspected as such. Capacitors are really good at creating Frankenstein-circuits that only live for a few seconds if no true path to ground exists. 🧟‍♂️ I suppose a bigger capacitor would extend the on-time. 🙃

[@tgheretford]

I noticed the unsoldered leg of the chip fairly quickly and couldn't help myself shouting at the screen. Well done on the fix.

[@JoshB4802]

Did same as you mentioned.

[@insanedruid3143]

Haha, same for me. Board flipped... one, two "there is a leg not solderd" :)

[@Adrian_Finn]

I seen it but thought maybe it was a NC (Not Connected), which sometimes you do get, but when he found the pad itself was connected to ground, I knew it Should of been connected. Normally, if it was a NC the pad wouldn't be connected to anywhere.

[@-Scraggyanne-]

Same here I was shouting at the screen to look at the leg on the chip as I could see it wasn't soldered, and thought that's the fault, first time I have been so sure of a fault 🙂

[@luke_it3973]

Same for me ! XD

[@StezStixFix]

Awesome. So glad you did the little LED mod, I was one of those saying "do it, do it"! Great job, Vince 👍

[@Mymatevince]

Cheers Steve 👍

[@TheSkaldenmettrunk]

The moment you said you don't have time for the lights I knew you will do it. Interesting fault. It really made real nice tea break repair.

[@JasonSmith-tv2zw]

Brilliant fix, I saw that missing solder in the first few seconds and was very chuffed to see that was the problem

[@allmyownvideo]

i must be learning something from you Vince as i saw the missing solder as soon as you turned the board over, keep up the good work. another great video.

[@manganmegamangan]

i saw that too

[@JasonSmith-tv2zw]

Me too, must be the Smith in us, LOL

[@colintx800]

I saw it too! Now I'm qualified 😂😂

[@-Scraggyanne-]

I spotted it too and knew straight away it needed to be soldered 🙂

[@coondogtheman]

I've fixed countless things that I bought that were broken and had similar faults. Fix well done.

[@GarthBeagle]

Brilliant (literally)! When we were kids (in the 80s), we'd take our regular plastic toy cars and put a motor and lights (from Christmas lights of course 😉) in them and make our own remote controlled cars, though they were really just controlled by a long wire to a 9V battery since no way we had the skills to make radio controlled ones. It's so cool you added the lights, reminded me so much of back then! 👍

[@presidenterectbeijingbiden1125]

Watching this on my work break. Great video Vince 👏👏👏👏

[@garyprice3757]

Damn. Simple fix and great spot of the chips leg. I was (as usual) over-complicating the diagnostic and blaming Q1 as an under voltage protection with voltage divider resistors. Gr8 fix. congrats.

[@wallyf7020]

Hi Vince from Canada. Your videos has encourage me to fix electronics as well. Keep up the excellent work you do.

[@hajpero]

Hey Vince. I got a confession to make. I was watching your videos for couple years now learning as you learn. I'm really an amateur on these things, but have done myself just a handful of repairs. I was so proud today that I actually pinpointed (or thought this might be it) THE fault on this Lamborghini repair. I saw the unsure solder joint and the first thing I would do is to try to solder it back on, before I would do any measurements! You can't imagine how proud I am today!! All mainly thanks to you and your videos! GREAT JOB!

[@dawn5227]

I spotted that unsoldered pin straight away. Knew that was going to be the fault. But my favourite bit of this video was the led instalation.

[@JJ21lives4ever]

Not brake lights, reverse lights. Looks perfect to me

[@timvangenechten5258]

If you do not have the correct connector then a female dupont connector(like the ones used on arduino and Raspberry Pi boards) would probably do the trick. Its not perfect but it would work fine if you do not have the correct ones. The unsoldered pad looked suspicious but at a first glance you would expect it to be unused. But when you started measuring and could not find any other pin that was connected to ground, I was pretty sure you found the problem. Once again, great job. Its not about the value of what you repair, its about the value of what you learned and the satisfaction of creating/fixing something. So satisfying!

[@RetroUpgrade]

Nice fix vince. My 3yo daughter has one of these , good to know if it starts failing. Will probably do the LED mod to. Would be a crime that a electronics MOD KZbin channel doesn't mod it 😆

[@DEmma1972]

Great fix. Love the added lights. Wonder how many of these left the factory faulty

[@BLKBRDSR71]

Good job! I love videos like this. Most people would just take it back to the store and beg for a refund.

[@virgildeklerk]

Wow so factory fails still happen 🤣 this was more a thee zip repair and a thee break mod of a rc car but you did it perfectly. Nice fix again Vince 👍

[@hadesmcc]

The LED lights were a cool little touch.

[@senketsu8632]

Brilliant video vince as always. I can't wait for the next one. Just go to show for few $ you can fix or try to fix anything because if its broken why not go for it.

[@treenamcgowan7652]

Great fix! I like the addition of the theme song at the end 😌

[@gower1973]

The connectors are by JST Vince, used a lot in RC stuff.

[@MathiasVen]

You can now add leds also

[@TRONMAGNUM2099]

Truly a master of repairs

[@raccoonlegendnotafurry]

get this man a million subs

[@JoeyDoesTech]

Even faulty the car lasted longer than me 😢 Fantastic video Vince! 😁

[@Mymatevince]

Hahaha 🤣🤣🤣

[@Wormetti]

Better than factory

[@ElektroTechNL]

battery pins aren't soldered very well either. I saw that leg of the chip right away and then those legs of the battery connection

[@Daniel-dl6fp]

Really interesting fix vince i would have never expected a ground pin on a chip chip would cause it to act up also that was a really cool mod you done with the lights and it was interesting to see the flashing lights as in some sort of syncing sequence i would have thought it would be like that from the factory very interesting video keep up the incredible work

[@Paperghost]

Love your enthusiasm.

[@SummonerArthur]

I'd love to see you mod it even more. I mean, if you dont like its turning radius I'm 100% sure someone on youtube has a tutorial on what to change/mod/replace to fix that.

[@Leonvolt28]

You should buy an RC car diy kit to build and mod it. The added LEDs where just amazing.

[@KisoX]

That non soldered leg bothered my as soon as you turned the board, I thought it is unused as the traces didnt went anywhere though :D

[@MichaelandCathy1999]

I’m yelling at the screen-LOOK CLOSER Vince!!!!!!!

[@theraptorsnest5891]

8:13 There is an edit here and solder has been moved on the resistor. What happened?

[@Mymatevince]

It looks like solder but it is just a scrape from the probes. These tea break vids are cut heavily to save seconds/minutes to try and get the overall time down 👍

[@pedromimoso8804]

Well spotted and nice fix and mod!

[@michaelthomas3646]

brilliant fix, but still doesn't explain why it only worked for 3 seconds, unless heat in the chip was lifting the chip off the board.

[@davidmelbourne5480]

When the ground to the receiver IC was left floating, it would start to rise the moment drive current to the other IC (prob. a uProcessor) was required. I too, was screaming at the screen the moment I saw the pad under the leg! Contaminant on IC leg/pad which avoided the flow solder process or sloppy hand work perhaps.

[@Mymatevince]

Still not sure, I don't think heat would cause it to lift as it seems so perfectly timed to shut off. Another viewer mentioned it may have been taking another path into the chip before failing or a charged capacitor ????? Hopefully some more comments will come in to verify the problem 👍👍👍

[@tiporari]

@@Mymatevince Floating ground. You can ground a circuit to a positive voltage, and as long as the difference between the two is sufficient the circuit will work. Imagine hooking a 3V bulb between +9v and +6 volts. It will see 3V in circuit and work fine. In this case your ground was at 0V until car turned on. The capacitor it was referenced to charges up to VCC or some derived voltage and when the differential gets too small the floating ground is no longer sufficient. Three seconds was the time required for the caps to charge enough to lose a virtual or floating ground reference that was adequate.

[@Mymatevince]

@@tiporari Thank you Tip for clearing up the mystery👍👍👍

[@koryaiine7393]

Lovely work 💪😘

[@marcusa5564]

This made me smile, good job 😁👌🏻👏🏻

[@QsTechService1]

Awesome video memory lane …. When I was a kid I would upgrade the voltage On the remote control cars I got for Christmas and crash them into the wall and repair them and figure out how The electronics work they wouldn’t last two days without building Flashlights & Fans out of them 😂😂😂

[@markshellard5894]

Actually improved it & fixed it bonus 👍🏻

[@mrjsv4935]

Very cool RC toycar :) Interesting fault and nice fix, neat LED modification too :)

[@abzhuofficial]

Why was that leg on the bottom half of the left side chip not soldered in the first place, because to have that not soldered out of the box is a crazy oversight to be honest. That said, brilliant fix

[@irvandtammywoodward1011]

Your videos are so relaxing..an fun to watch . Thank you

[@darren990]

love the jingle ,thats the best on youtube mate

[@andersmmvfc.8376]

Brilliant!! That was a real intresting fault! Thank you,

[@Mymatevince]

Thanks Anders 👍👍

[@adamhelling2601]

Really enjoyed that one 👌👏🏻👍

[@thomasebelsheiser6422]

Just one word: AWESOME!!!!

[@dchapman0449]

Awesome fix!!!

[@aldo9923]

Tbh one of your best videos imo lol

[@celestaronin]

Love your vids vince been a follower for a long time keep it up mate. 👍🏻 the amount you have taught me is unbelievable. Your a true techy!

[@Psycho-Timbo]

As soon as I seen the chip with no solder on that pad I knew it was going to be the problem.

[@bobsbits5357]

hi had this in a back of a betacam sp deck with the audio input you know they use a placer unit to load parts in a jumper was put not in the right place it was used in a studio for play back i got it because it would not record audio i did the same like you did in the video and recorder the space wire in the right place like you did betacam sp deck were big money to make a silly misstake was never picked up good video

[@catd11rcattester]

What a satisfying repair.. thnx

[@kareno8634]

Must be nice to be Thrilled to find things Wrong, and always looking for more. Beginning to wonder what my brain lacks. ugh lol

[@DeathofRats09Gaming]

I think that the lights that got on when in reverse are reverse lights which are white

[@unitedfools3493]

Never heard someone so happy about a fault before.

[@rogernichols8150]

Great job mate 👍 👏 so enjoy your videos 📹 😊 please keep them coming 🙏 👍 and here to help get your videos 📹 out to everyone 😀 👍 😉

[@begames585]

Hello, what's your camera for your vidéos ? ty

[@BowsettesFury]

Awesome fix

[@robertc49]

Make the leds blink when turning, turning lights.

[@crazyivan030983]

Cool :) I thought it has a 555 timer like Commodore 64 :)

[@almostanengineer]

That looks like it was a floating ground pin, it was getting a small connection, but not a great one.

[@GadgetUK164]

Great tea break fix =D

[@Mymatevince]

Thanks Chris 👍👍

[@spooktasticaparanormal]

Nice easy fix. Keep em coming.

[@Mymatevince]

Thanks Tascam 👍

[@Tim_3100]

My niece has one of these its quite fun actually

[@leebox9911]

Nice one Vince you made short work of that likes lot nicer with led lights on it!!!

[@andrewcollins867]

Great Vince 👍

[@thorhammer6040]

1:55 haven't watched the rest of the video but my guess is a demo mode or switch.

[@Angrylad.]

These cars have been sold for years, toys r us used to sell them I had this one and an Audi R8 aswell

[@snoopyjc]

Backup lights should be white, so GREAT JOB!!

[@unlined_sardine7426]

Love your videos ❤️

[@Operational117]

Every chip needs to be grounded, or there will be no pathway for the signals and voltage to take. As soon as I saw that ground pin (and, mind you, the *only* ground pin on that chip) not being soldered, I knew that the problem was exposed. That chip was effectively disabled. Current could enter, but not exit, so it doesn’t enter at all. Still, if that chip was important for the RC car to work at all, it shouldn’t have worked at all. Something else must be the cause for the three-second runtime (maybe the current took a different path through that chip, but that would be awfully bad for the chip’s longevity). A capacitor may’ve been involved as it would allow that current to go there until it filled up, at which point the voltage gradient would drop too low for the chip to remain functional.

[@DarthSimous]

Interesting points ...

[@Mymatevince]

Cheers Operational 👍

[@Mymatevince]

@@AppleReviews I have a Dell monitor coming up, also a Nintendo Switch, laptop and Sega Master System . Plenty of serious and also fun things to look at 👍 I have only just done the mechanical calculator. If that wasn't serious I don't know what is 🤣

[@Mymatevince]

@@AppleReviews I have some MacBooks to look at too. But I know they will be a headache so I keep putting them off🤣

[@chrisstyles4630]

Great little fix & mod the turning circle is probably about the same as a real lambo 😅

[@Mymatevince]

🤣🤣

[@Retro_andy_1977]

Great car mate well done

[@jasongooden917]

I fixed a cheap RC I found a few years ago. I have it on display and for the life of me I can't remember what was wrong with it. Probably had to clean up the mobo and solder some wires

[@falloutguy8878]

Very good video Vince have a great day dude

[@hellooohowareudoing]

Love the videos Vince!

[@mikethedigitaldoctorjarvis]

I have asked before Vince,on a another video,where do you get that nice flux from ? can i have a link please 😊

[@Mymatevince]

Hey Mike this stuff was bought form RS components here in the UK. It is CHIPQUIK SMD29130CC No-Clean Tack Flux 👍

[@mikethedigitaldoctorjarvis]

@@Mymatevince Thank you Vince 😊

[@mikethedigitaldoctorjarvis]

@@Mymatevince I'm in the UK,so that won't be a problem,thank you :-)

[@borisdg]

I think it's just bad soldering job. It's such a toy that can cause lot of vibrations and probably that killed it.

[@eathenalexander2836]

Great vid Vince

[@Random_4400]

Nice fix

[@Merescat]

No longer a Tea break fix, bit a tea break mod! Yeah! That's the ticket!

[@howtowithelizabeth7513]

8:55 bottom left looks like the one leg of the chip isn’t sold red but does it even go to anything Haven’t watched the rest yet maybe u found something else

[@howtowithelizabeth7513]

Never mind u spotted it

[@JuicyJakeRepairs]

im impressed it passed their QA

[@daz41262010]

wow the easiest fix Vince :)

[@rfr653]

good job mate.

[@travisritenour1849]

That was awesome fix

[@Tom83L]

I noticed the fault quickly when you had a close-up of the board. They probably tested it for a few seconds in the factory and assumed it was working.😬

[@gabrielsuarez2096]

Nice song. Who is it?

[@petergilbert7106]

I might be wrong, but I think reversing lights should be white. Great fix as always Vince.

[@CheapCheerful]

Great video, thank you!

[@TechGorilla1987]

@18:10 - A drop of red nail polish from your wife or daughter should tame those ferocious LEDs in the rear.

[@TechGorilla1987]

I believe the crystal is for the frequency of the remote connection vice the timing of anything else.

[@meekrodriguez6438]

Nice car

[@chutchut1827]

Enjoyed that. Thanks

[@fatbelly2438]

my guess is something is overheating

[@garyhart6421]

Very Strange indeed !

[@angelalasso626]

Hola oye podrías subir un vídeo del rayo mcqueen sphero sobre que tiene por dentro ese carro es que tengo mucha curiosidad que tiene por dentro siii porfisssss

[@andrasszabo7386]

I would rather put in a timer board to reset the car every time it freezes LOL :)