The importance of the first Mosfet - Part 2

[@defragment418]

A honest guy, strong enough to acknowledge his own mistakes. Thank you for the video. It will save time to other people in a entertaining way!

[@thomaskane9922]

It takes a lot of character to laugh at yourself - just makes me like your videos even more.

[@kennith.]

You are not failing you are learning and in the same time teaching all of us. Thank you.

[@カエル王子-r4g]

Thanks Sorin! By watching this video, I learned there are some laptops that have charger detection circuit on charging port. Without shorting the detection pin to ground, they don't charge the battery. I'll keep that in my mind for future repairs.

[@daviddevillers6790]

"Hello! We are back!" - my favorite words on KZbin! Now over 3000 people know about this.

[@MrMagneh]

"Monday!"

[@isajakwa4059]

this kinda video make 1 hour feel like 10minute😤packed with information . love it!!

[@Oak690]

I truly believe learning from making mistakes is the most powerful way to learn. Thanks for all you do Sorin. I have learned a tremendous amount from watching your videos!

[@tarashe_pc]

I am from Iran and I just met you, I love you very much 🤗

[@rodwellmatsaure7217]

Not many of us are good as you are Sorin you are the best my teacher and still we are learning through your good and mistakes keep it up

[@vianacode]

I've learned more than ever from these two episodes. Thank you for your time and for share your knowledge! Also thanx to the community for their comments.

[@popsypopescu2093]

Hello from Romania. THX for everything you are doing.

[@mcflapper7591]

No nonsense. You did a great job. This kind of oversight happens from time to time. You learned something, I learned something. So mission accomplished. ;-)

[@dougle2011]

Thank you for uploading this, it's still informative, also learning for us all. You are still a great teacher, and you admit this was " not a great fix". Thank you Sorin.

[@mcgama88]

I followed the troubleshoot with great interest. It so was to my workbench, a sequencer (unit) power fault. In the end, the unit went to dust bin, as a curious fault. Very much a parallel, power on fault in the end where I failed. So at test, I could learn about the 2nd ground as sense. And the care needed to fully test mosfet. 1, 2 or more in design. While a difference in power supply value, the needed approach to troubleshoot important and vital. While I at my bench repair for simple enjoyment of task....not paid..I very much like the repair task, you see. And will try that venture to any model, any laptop or phone. So it is I watch with care the methods used. I gain from where you draw the schematic and I quite thank you for taking the time to teach. I really enjoy all of the posts....and I bid you fair winds, a fair season. Regards. McGary

[@gyorgyszabolcs7313]

Asta a fost o lectie dura, dar super folositoare pentru multi! Iti multumim pentru tot ceea ce faci Sorin! ...un tip din Tg.Mures carea invatat f.f.f.f.mult de la tine !

[@predatortheme]

I just started out learning electronic repair since my old laptop died and i really want to try to get it fixed, your videos are helping enormously and i am learning quite alot from them! Thanks man!

[@ripe_apple]

Soring, you are the best student to have!

[@therealspixycat]

Pin 11 of the bq chip drives the mosfet between the batt plus and the main 19v pwr sply: the bq drives that mosfet when there is no adapter detect ACDET pin 6 but there is sufficient voltage provided by the batt on the SRN pin 12. Datasheet states for pin 12: "SRN pin is for battery voltage sensing as well."

[@champu1979]

nt than learning to code. WE can't be good all the time, none of us is perfect but I can say I am grateful for this and all the other videos you do - they are honest. Thank you for this lesson.

[@juliocesarpalma5199]

Learning with Sorin 😃👏👏

[@silverian]

Thank You Sorin again for sharing experience and knowledge! And also thanks for the kpjVideo who commented here and told about charging sensors and two contacts.

[@dave7010]

Well diagnosed KPJ Video. 👍

[@Trustsimo07]

love this video ... we still learning to the end.

[@electronicrepairservice2020]

Awkward...hell no. This is a learning experience for many of us so no harm, nothing to be embarrassed about. WE are always learning, especially in this field that is constantly changing. No different than learning to code. WE can't be good all the time, none of us is perfect but I can say I am grateful for this and all the other videos you do - they are honest. Thank you for this lesson.

[@fcuk_x]

Agreed. But I can see how arrogance from extensive experience can play a cruel joke on any pro.

[@timstanford3443]

Learned a lot from this video. I appreciate your honesty and time my friend!

[@bmsprecision]

well you definetly made a good thing uploading this video, I would never in a million years would have thought about the damn jack detection... I was betting it would be a faulty resistor on the voltage divider and the BQ chip wasn't detecting the charger voltage making it work with battery alone. Thank you sir for this lesson

[@MrSonic1953]

Great analytical video. You showed how you analyse the problem.

[@knightwar3]

It's good that you read comments they served you well in this case :)

[@kinsoncooper7333]

Our kind of video Sorin... we're learning. 👍🏽👍🏽

[@HealthyDoubter]

So, I learned more about mosfets and the gate driver chip from your experienced troubleshooting. If you had recognized the second ground connection this would not be as useful to my learning. Ever so grateful to be at your elbow so to speak, watching you process and explain these components.

[@Roby-q7i]

Nice one. You should celebrate tonight with tuica and sarmale de 1 decembrie. La multi ani!

[@PawePolak]

Sorin, you show me a big great lesson to remember :)

[@JimmyBComputerGuy]

Thanks for uploading it. I will now watch for this in the future and would not have. BIG thanks!

[@g0une1]

Been there, Done that, Got the tee shirt. It happens to the best of us. At least you owned up to it on video. Respect to you Sorin.

[@geonylove]

La multi ani Sorin!

[@ahmetaltan3203]

thank you so much Mr. Sorin interesting problem.

[@gregorymcclure7993]

Don't sweat it Sorin it was still a good video. And trust me you are not a beginner. Things happen, it's fixed.

[@ohmware2020]

this happen me all the time! thank u sorin

[@Roberto.P]

Thanks for uploading this video. Especially thanks for your intellectual honesty. Certainly today many people have learned something new about ACER connectors.

[@rezahatami2555]

ohhhhh.my god.great job.you are number one.very strong .i have same problem.and after few days . i say you can solve this problem.thanks alottttttttttttttt.

[@andolis49]

The power of comunity! Merită acel user aprecierile noastre pentru share! Iar tu Sorin e ca-n fabula cu vulpea și corbul: Dar lecția pe care o-nvățași O fi făcând cât boțul tău de caș!…” Mulțumim pentru video! La mulți ani, române!

[@PaulHigginbothamSr]

I have run into this too. That the cover of the metal on the charging pin needed to be in and present or your power supply would be inop. Took me a long time too. Grrrrrr!!!!

[@manuelapacheco9129]

learning from master's mistakes, that's great too

[@neelbanerjee3086]

thank you for sharing the knowledge with us sorir 🙏🙏.. you are a honest man..

[@ranjit8323]

Achi videos dalte h na bro ye

[@mrnikau1]

If the power supply has to be properly connected before the computer switches the port on remotely, what are the chances of arcing and subsequent overheating of the connection? It was probably quite a good idea really.

[@kpjVideo]

Hahaha yes I knew that was the issue. I spent much time on it before.

[@electronicsrepairschool]

Well, at least we learned something :D

[@gsmlaptopskills8859]

What was the solution please?

[@contacttly6398]

Cele doua suruburi: - proiectarea matritei pentru partea de jos a carcasei mai simpla ; - realizare matritei de turnare mai simpla; - 1 gram de plastic economie / bucata; - robotul A care monteaza "piulitele" sare doua - mai putin timp / bucata; - programarea robotului A - mai simpla mai rapida; - robotul B care realizeaza asamblarea sare doua suruburi. - programarea robotului B mai simpla mai rapida. - etc. - adauga si eventuale controale de calitate sarite pentru operatia X. .... Deci, un surub mai putin, de fapt, e ceva ...

[@rahmatech7034]

Love watching and learning... It's educative God blessed 🙏🙏

[@frankatmk]

Video not wasted, in fact hi-lighted my problem with a new laptop, the charger needed to go in just a fraction further,, for the second contact ,,,,problem solved.. Thank you

[@MilekaRobot]

Really useful video, thanks for sharing the experiance!

[@stacyg3802]

We learn something every day!

[@Swenser]

What about latest 2021 laptops. Are they using data pin with power supply forcing users to buy original replacement when p.s adapter fails?

[@robertoestebangrau5197]

15:56 " the battery still charging... Thats crazy... Thats insane..." Funny Sorin moment... Thanks for the lesson Sorin...!

[@carlo-felixadam6167]

Noroc Sorin ! Am intâlnit ceva asemănător cand am schimbat un port de alimentare de la un lenovo Lenovo z70-80 iar in cazul aceluia era o rezistenta conectata intre masa incarcatorului si un pin de pe placa de baza (rezistenta se regasea pe mufa de tip tata al incarcatorului, si al naibi de dificil sa o recuperez fiind incastrata intr-un silicon care se topea mai greu decat plasticul mufei)(ca simptom in lipsa rezistentei respective laptopul nu se incarca corespunzător (mai mult se descarca decat se incarca)) Mult noroc daca intalnesti problema asta la un viitor leptop !!

[@MrDawnHU]

"Probably another sorin is there making these laptops" XD I just ROFLD there. :) Self irony is the best!

[@alaahaidar8029]

But it was a very good leason for us Thank you master 👍💐

[@kiengweegheu8163]

You are genius sir.

[@SiETechNotebookReparatur]

Until now I haven't noticed that this charging port has such a stupid feature. I wouldn't have noticed it with this repair either. You can buy a large set of adapters for 10-20€ and always go to work with a suitable adapter. It is no point to spare on this investment if you work with it every day.

[@lucataszarek8782]

We are just human beings and we learn all our lives. Regards👋👋👋👋

[@marka1986]

Bet you remember this one forever. Been down the power supply jack thing on consumer items too. There are so many variations on those barrel plugs. Thickness of the outer diameter and the size of the inner pin etc.

[@j.a.styles547]

Wow, actually i learned a lot more.... Thank you for a great vid. I dont even own a laptop but its so interesting.

[@giorgostexnikos6976]

amazing video.it was a very good lesson for us.thenks

[@technolus8427]

Learned a lot from these two videos :)) is just experience, nothing to regret, yea, is some time invested in there, but for us, and even for you is a mistake that will never happen again, at least we hope :)))

[@BlackOpsJuJu]

I think every person who does repairs has went down a self made rabbit hole and more than likely more than once Love all your vids thanks for sharing Can't wait till the next vid Hope you have a great one

[@Dr.muthanna]

I think it’s better to ground that pin by jumper wire to terminate the problem of totally fit adapter

[@SerenoOunce]

The sense pin most likely is to prevent arcing within the DC jack. Particularly on a laptop like this with dedicated GPU which draws more current. Also a possibility doing a jumper bypass of the sense pin may prevent the laptop from switching to battery power. May make diags more annoying but it does serve a legitimate purpose.

[@markkay8117]

This vid is old now, but to my knowledge this extra pin on DC jack is Power supply ID pin. it should not be shorted to the ground. There is a separate ID chip inside the genuine power supply, telling the motherboard which charger is connected.

[@fizzyplazmuh9024]

You guys must not run heat in the shop. Everyone always has their jacket's on. Real efficient troopers. 👍👍👍

[@intrax2tv]

You can spent your whole life searching for a fault that you believe is there, but actually it is not ! Thanks for the lesson....😇 Good entertainment ! 😁

[@michelk1445]

Great video

[@rfr653]

good job mate.

[@SidneyCritic]

In manufacturing they look for every cent, because 10c on 1,000,000 products is $100,000. Even when you sign a contract with a company to supply parts, you have to reduce the price 3% per year because they expect that making more items will make it cheaper, ie, the manufacturing setup fee gets paid at the start so it should get cheaper.

[@afb9999]

Crazy design on the charging port

[@michaelgay562]

what do you use to bring heat down?

[@z0525524049]

"If it works don't try to fix it" The reason for having the control of inserting the plug all the way in is to ensure that there is no loose contact that will generate heat and cause a fire to break out of the computer.

[@tolgaaydin1981]

It was a fun as well as educational video. :)thanks

[@Radek__]

45:03 what did you meassured with two red probes? :)

[@alexgreis]

Guys, does anyone know what temperature Sorin might have used to remove that chip really fast? It seems that he used more than 400c, right? If someone could help I really appreciate. This channel is one of my favorite, and I am learning a lot. Thank you very much.

[@techtinkerin]

Everyone's done this sort of thing, you go around the houses to realise later there's a quick route..👍😎

[@eamoinnmckinley3755]

I am no expert but I always start with simple tests first and move on from there, doesn't always solve the problem but it's somewhere to start.

[@_DanielPrieto]

55:20 two videos, second part was almost 1 hour finding a problem and removing components. The problem was the connector design. Niceeee

[@silvatyitende7044]

guys help! i have an HP 15 Laptop, did not want to switch on, diagose ad saw that the 1st mosfert wasn't allowing voltage to pass, so I replaced it. AFTER that when u plug the charger on with the battery inside, the charging led does not turn on, when u remove the battery while pluged in, then charging led come on. when charger plugged in without a battery the charging like comes on nicely and the pc goes on. when charger plugged in with the battery inside , no charging led . what can be the problem?

[@girboveanumarin2968]

La multi ani Sorin

[@Popeyes66]

Maybe you had your mind on other projects Sorin. Like Helium mining antennas etc etc ?

[@oussamathedjfreeman]

Very good video we learn to much from you, i advice you to get standard charger that come with all pc brands connectors, and cut that cable and link it directlly to your power supply that you can monitor amps. Second, i advice you to add cable usb hdmi usb c usb b to negative psu and nevative multi metter so you dont need to use the negative probe that didconnect all time, and u can use negative clamp for open pcv without usb or hdmi ... So any time you wanna use negative just plug usb or hdmi cable to provide negative connection. Ps i need your help with dump bios for asus gl504gm with the serial number of that dump, i need to edit dump and look for serial number you provide and put mine inside Thanks and keep going have good day Peace

[@ilanbinkovitch6054]

Not nonsense video : diagnosing considerations were interesting

[@mulatiechekol4513]

Thanks!

[@dricklorenz9340]

Questioning life choices at 34:10

[@lucymc0191]

we are only human sorin ...the easiest problem is also the hardest sometimes ...

[@sniper5406]

34:52 i like to See Sorin thinking lol

[@michaelgay562]

surprised you haven't a universal charger kit.

[@MrDomingo55]

The sensor connector on charging socket is to indicate that charger has been plugged in.

[@KrissBartlett]

you still did good job anyway you know i had a similar problem with laptop charger the one i used was 16v but it suppose to be 19v took me a while to realize no video out and then put the right charger in was good so im a idiot hey !!!

[@raymondgalland8074]

Sorin You Disturbed the Fault so it got It's mind right and corrected itself automatically lol :-) Jesus Loves You Sorin

[@iuliandumitrescu9441]

Hai sa o spun in romaneste! Din acest motiv, cei tineri nu invata nimic!!!! Ar trebui luat de la zero, ce este un tranzistor(bipolar, mos fet., igbt, germaniu), ce inseamna o sursa in comutatie etc!!! Am remarcat, cei ce repara pc si laptop nu sunt in stare sa repare o sursa in comutatie!!! sau un invertor de sudura. (de cele mai multe ori schimba igbt cu galeata)La multi ani ROMANIA!!!!

[@SerenoOunce]

May want to keep a assortment of replacement barrel connectors on hand for this purpose. Then you can still come in with your bench power supply and monitor current. And less time wasted trying to find a compatible brick.

[@loizostheochari1509]

Sorin why keep a book on issues similar to this one. That you can refer to your book on not to fall into that trap.

[@arvinbaba]

It's only me or anybody else is like me get nervous when test result is same again ?😂

[@SpeedoGarage]

high can you help me about my laptop issue.? i am from Philippines,

[@MrRvdbeek]

I did see the last 20 minutes. And I wasted my time on this hahahahaha there was no fault at all hahahaha . I no the pins are on one Toshiba a was looking and looking……….Sorin thanks I learned something hahaha I don’t know what hahaha do the screws on the … hahaha love you man

[@Profsonyk]

Always.. Always use the same connector to plug to board (never use customer adapter) to test at the beginning , never use "touching" probe to test. If you have done this as an SOP, you can avoid this problem.