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This was a hard one 

Electronics Repair School
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3 окт 2024

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Комментарии : 254   
@christopherj3367
@christopherj3367 5 лет назад
love the fact you still strip wires with your teeth, great work once again, its a delight to watch your way of thinking through problems
@alaster33
@alaster33 5 лет назад
Good to see you back again Sorin , been missing your ingenious adaptability and broad knowledge based teachings 👌
@bwholz
@bwholz 5 лет назад
I love the knowledge you share with us thanks for another great video.
@mohamedchafiq4191
@mohamedchafiq4191 Год назад
Bravo Mr Sorin you over come on it again ! You deserve to work with manufacturs in conception of they devices
@coryjay9384
@coryjay9384 5 лет назад
Sorin is the multimeter king. I'm beginning to believe that the Creator the inventor the founder of the multimeter can't even use it as good as my man Sorin. I learn something new every time I watch him do what he does best solve problems totally through electricity basically the man's a genius
@zvotaisvfi8678
@zvotaisvfi8678 2 года назад
Wow. I see what you mean.
@marcocambon
@marcocambon 5 лет назад
Nice vide Sorin. I really love your approach: keep simple, keep cheap, keep your brain!
@Dr.muthanna
@Dr.muthanna 5 лет назад
Nice job Sorin This video will be a reference to all persons who fixes electronics And that magic chip will help us in modifying all kinds of power supplies
@DrozChann3L
@DrozChann3L 5 лет назад
Edits NO, raw vids YES.. I never get bored on his videos thats a mystery...
@garrygemmell5676
@garrygemmell5676 3 года назад
2 hours+thats longer than War & Peace movie!
@yeabseratibebu5708
@yeabseratibebu5708 3 года назад
ikr same here
@Ash-up5yw
@Ash-up5yw 3 года назад
Lol, same here. Loving all his vids man
@publicojornas1787
@publicojornas1787 5 лет назад
Looks like I'm watching a Sherlock Holmes movie... "Elementary my dear watson!" Best video so far! :)
@johnoddvar1967
@johnoddvar1967 5 лет назад
Its a lott of people that think this is dodgy. But if it has to work to day i think this is the only way. I have learned so much from you.
@Qban220
@Qban220 5 лет назад
Thank you for sharing your knowledge Sorin. Very interesting and educational video. You're a legend!
@arielgarcia4199
@arielgarcia4199 5 лет назад
this is a real troubleshooting. lots of respect. 👍
@JohnR23100
@JohnR23100 4 года назад
Nu pot sa cred ca ma uit de cateva zile fara oprire la video-urile tale si nu mi’am pus intrebarea daca nu esti cumva roman!!! Foarte tare ! Tine’o tot asa... putini electronisti mai sunt in ziua de azi...
@thecentralscrutinizer5105
@thecentralscrutinizer5105 4 года назад
And that's how you find the defective part in seconds...Light it up!!! Thanks for keeping it real Sorin!
@vitu7893
@vitu7893 5 лет назад
This is absolutly not for a beginner. Respect. Thank you for sharing.
@klwthe3rd
@klwthe3rd 5 лет назад
I"m so glad that Sorin is so entertaining and fun to watch because i don't understand a damn thing he was doing! HEHEH. Until he finishes his beginner electronics classes, i'm not aware of all these different procedures he performs. Great video otherwise.
@user-ug9nn
@user-ug9nn 4 года назад
He show how he is repairing electronics, not training others, you have understand what is he doing if you have already repaired 1,2 .. switched mode power supplies and understand how they work.
@witektaaham6297
@witektaaham6297 3 года назад
@@user-ug9nn then this is not any electronics repair school ... because what kind of school is this where they don't teach anything? ...
@roadeycarl
@roadeycarl 5 лет назад
The end result is it works and it is safe. Perfect repair work. Nice one Sorin!
@charlieandrews2873
@charlieandrews2873 5 лет назад
This is practical thinking outside the box, more people need to get out of the box & have a look around, you don`t need gloves to give it a go, Thanks Sorin, one of your best yet, we could see your brain ticking to come up with a solution & you didn`t disappoint, this is old school electronics in a modern world :)
@pteancuvasile5055
@pteancuvasile5055 3 года назад
Ce roman de valoare,imi place cum lucrezi tine-o tot asa ,succes
@zoranpetkovic8368
@zoranpetkovic8368 5 лет назад
Svaka cast majstore..od Vas se ima dosta nauciti..hvala za ove video edukacije
@djordjeblade
@djordjeblade 5 лет назад
Flashing timer on those Pioneer micro-systems means it is activated short circuit protection or some power rail is missing. Pioneer say that they have code for every type of flashing combination.After repair,flashing timer on some models keeps flashing and it is just needed to reset the unit with combination of buttons. Power + play/stop or Input + >> but that combination is maybe not possible on this particular model.
@rodwellmatsaure7217
@rodwellmatsaure7217 5 лет назад
you are the best Sorin thank you for all your videos , um really learning a lot from you .A generational changer
@priestblood
@priestblood 5 лет назад
I hope not he's a cowboy hobbyist I hope you don't learn a thing from him ,if you want to be in the electronics field then study and learn don't follow this guy
@banjoperator
@banjoperator 5 лет назад
dodgy is not a word i would use ..the word i would use is innovative... that describes what you do with ypur knowledge of how things work and a method to keep things working.. i think the owner is happy to have it back working rather than the power saving feature the manufacturer put in as a selling point..good work Sorin...
@earthelder2065
@earthelder2065 5 лет назад
WoW! definitely an intricate repair! Thanks Sorin that was an amazing ..........
@joliettt
@joliettt Год назад
You are amazing.... Great work. Love that mini-amp.
@cyrilbarral5120
@cyrilbarral5120 5 лет назад
The veterans move, of electronics..
@cristianilie8857
@cristianilie8857 5 лет назад
Another great video from which we can learn many new things! Thx Sorin!
@josephbrennan4622
@josephbrennan4622 4 года назад
Even with your new power supply's with using the mains one wouldn't it need that fuse and relay. Fantastic shows Sorin......
@josephbrennan4622
@josephbrennan4622 4 года назад
That was 1 brilliant fix, and no schematics, well done Teacher.
@NEWDEVICE
@NEWDEVICE 5 лет назад
I like your style, what you said its completely true, maybe 80% of the world its in poverty and its very difficult sometimes get spare parts from ebay, etc. I am in argentina, and i can order on ebay or china, but takes months and a lot of papers to get the stuff here, so for the client is not fast if i work in that way. So i am doing like you, taking spare parts from where i can, i think is good becase we recycle and is good for the environment. My channel is on spanish feel free to take a look if you want to do it, saludos!
@runthomas
@runthomas 5 лет назад
proper electronics...understanding of circuit...it reminds me of a music amp i bought...100 pounds below value as i needed to buy and put 2 chips in it...it was not fully assembled by accident..... my sister boyfriend took my amp while i was away and went round town telling everyone how he fixed an amp due to his electronics skills...and he kept my amp.... i only found out when my old amp blew up and i went to collect my brand new amp that needed the 2 chips and it was gone...i was livid.
@agutek
@agutek 5 лет назад
tell that chip smoking is bad for him :)))
@hermannschmidt9788
@hermannschmidt9788 5 лет назад
This optocoupler trick to find the output voltage is really cool!
@Lance_MadCat
@Lance_MadCat 2 года назад
Thank you for the lesson!
@josephwilson3573
@josephwilson3573 2 года назад
My method: On the DMM diode scale, check forward and reverse probe polarity the diodes, and the switching MOSFET, and it looks like the MOSFET switching transistor is shorted, and the fuse blew. Replace the MOSFET, diode(s) if bad, the PWM Controller chip, and the fuse! Then the whole unit should work! No more wires and substitution of power supplies!
@user-ug9nn
@user-ug9nn 4 года назад
I have looked on some of your videos, And I really like them, you really do repairs, and I like the simple ways you do it. I just do repair for myself, and always go on the opposite side. 1. That circuit (the relay) it was made to switch off the transformer from ecological point of view, low power consumption, the transformer and circuits that power it (sorry if I am wrong I have not look to the entire movie) 2. A repairman can't be smarter than a good engineer, so the repair should be done to the initial design specs, otherwise is not an improvement it is an improvisation. 3. Improvement is done to compensate cheap manufacturing, where from the engineering it was design to low quality material (par example low quality caps or inferior capacity) and simpler design with shortcuts (like missing voltage stabilizers). For this device and Pioneer in general is not the case, as is not Chinese and neither on the cheap side. Both we are from the same country, so I understand the way you work and I appreciate showing you your way how things are done. I also have a DVD player with similar PWM chip blown (TNY267 if I remember correctly), but I will go the right route, order same chip, and make an improvement add a power button so DVD will not be powered at al if not used. This is the issue with all devices plugged and run in standby, if chip inside is not designed for a lifetime, thy high voltage and continuous pwm will short it.
@ravindraadapa2952
@ravindraadapa2952 2 года назад
thank you very much sir giving good thinking knowledge to improve my self confidence watching all your videos once again i very thank full to you sir
@paulbaker1211
@paulbaker1211 5 лет назад
you are a very clever man, love your work, all of the best to you
@KiloWatt304
@KiloWatt304 5 лет назад
i have never in my life binge watched a RU-vid channel , But this one YES great Videos you remind me of me working on stuff. use your brain and anything goes even if it means redesigning the circuits to get it done great job . might want to try a filter cap on your output on that small supply
@rtype4930
@rtype4930 5 лет назад
see you later Sorin ! Thx for your modifications you are a real thinker , a true hacker..!
@MeFixingEverything
@MeFixingEverything 5 лет назад
Will be happy if you show us some more work flow videos :)
@PHONE-LAPTOP-REPAIR
@PHONE-LAPTOP-REPAIR 5 лет назад
i second you
@groovejet33
@groovejet33 5 лет назад
I don't think there's any issue how you fix it, as long as it's made aware in some way. Or the price represents the job. Customers won't understand anyway so like I said ? As long as it's sorted out in some way that everyone can understand... I can't see a problem👌 Great work as usual
@hightttech
@hightttech 4 года назад
Sorin is genius like Doctor Frankenstein. Some love the monster, some hate the monster, but ALL are FASCINATED..
@balazsio
@balazsio 3 года назад
At 56:42 I thought Sorin will say: We failed badly because you didn't say I'm doing wrong! :)
@Tom-pd4oc
@Tom-pd4oc 2 года назад
You are a genius. Great job.
@zeljkosruk5749
@zeljkosruk5749 5 лет назад
Of course it is easier to change the chip, condenser and diode,fast and simple measurement of several elements but then we did not learn anything - right? Great and helpful clip - thanks
@Edw590
@Edw590 3 года назад
Thank you for another great video! I like messing with stuff. I love to least least try to fix broken things I have at home haha (or improve them, which sometimes I like more!). And you teach us how to fix them (provided we have some knowledge about this stuff). So thank you so much!!! I'm learning very cool stuff here... I'll stick with the channel 😄. See if I have time to watch some lives (not sure, but would be interesting). A thing though. When the small power supply wasn't working, maybe you could have checked the current? The voltage could be the same, but it could have dropped the current, maybe? Or that doesn't usually happen? (Or it can't happen at all because of the power supply or something?)
@TheMcdrewb
@TheMcdrewb 5 лет назад
Lol I found you a week ago..u are really entertaining and enlightening
@zomaardan
@zomaardan 3 года назад
Such a skilled person. Awesome.
@MemoKab93
@MemoKab93 5 лет назад
Welcome Back Sorin!!
@ahmadissa8607
@ahmadissa8607 5 лет назад
Yes it is hard job, but was great seeing you adjust the whole switching power supply :)
@nicemihcos
@nicemihcos 5 лет назад
6:23 "This will be an easy one" , meanwhile title says "This was a hard one" :))
@electronicsrepairschool
@electronicsrepairschool 5 лет назад
Ha ha, yes, indeed, how wrong i could be sometimes :)))
@user-ug9nn
@user-ug9nn 4 года назад
It was hard because he chose the hard way, the simple way it was just to order for the replacement chip. I think he does not like to wait, so he try to do it with what he has.
@ja.935g67
@ja.935g67 4 года назад
I would say tricky one!
@garypoplin4599
@garypoplin4599 9 месяцев назад
43:12 - Sorin, I couldn’t tell if you were licking your soldering iron or smelling the burning flux.
@DavidPennable
@DavidPennable 2 года назад
I called out the 3.3v standby trigger like a computer's supply
@MrRvdbeek
@MrRvdbeek 5 лет назад
Sorin Man that’s awesome 👏 very hard one. How’s possibly you now what to do to make it work it’s amazing 😉 its not too long it’s going and coming to the working solution at the end. Thank you 🙏
@axellno1759
@axellno1759 5 лет назад
"I can come back and replace the chip.... but I don't want to." :D
@davianceable
@davianceable 5 лет назад
He is so right about this ,ı mean who can really find a power s. board or that chip ,lets say you found it you have to wait months for that and they sell whole and there is shipping cost and all ,it is good to learn improvise soon so you dont have to rely on standards and think out of the box- he just spend 4$ on that and probably it works forever and error free.
@user-ug9nn
@user-ug9nn 4 года назад
@@davianceable you just have to wait two days for the chip order from a site like tme.eu (the chip is not a no name Chinese chip - We talk about Pioneer), and you can order even one (depends what you order). I agree with you with thinking out of the box, but we are no more in communism, today we can find what we want.
@dormankenneth
@dormankenneth 5 лет назад
O treabă bună Sorin, poți rezolva orice.
@thinkrits9012
@thinkrits9012 4 года назад
When he bit that wire, he became a legend.
@TheOldRogue
@TheOldRogue 5 лет назад
Great work Sorin, it was a hard job but you did it in the end :) Can i ask what is the camera looking down at your desk, it is good quality.
@costelpopa422
@costelpopa422 5 лет назад
Dumnezeule!Sorin, cat te complici, repara circul ala de sursa si nu mai modifica schema.
@morto360
@morto360 5 лет назад
How comes you can solder a live wire without shorting it? Isnt the tip of the soldering iron connected to the earth ground? If you touch a live wire, it should short the powersupply, not?
@annyan904
@annyan904 5 лет назад
excellent substitute......but one thing what did you do to get the device turn on in the last....your small power supply 3.3v was not working earlier....but what happened that it suddenly started to work??
@noctilent2301
@noctilent2301 3 года назад
Sorin: I have no idea what this is Also Sorin: **diagnoses and fixes it np**
@TheMaGGiiiii
@TheMaGGiiiii 5 лет назад
Thank you for the experience , Mr.Sorin :-) You´re very good teacher! Never give up! :-) Can you anytime make a video about different soldering wires ? Whats the difference? What are you using?
@zx8401ztv
@zx8401ztv 5 лет назад
Sorin, Somehow i think you will be buying more of those higher powered buck/boost modules :-D. It is naughty, i'm not a green learner, But "You have to do, what you have to do". That p.w.m chip is an oddball, "Unobtainium" lol.
@coopercruse5867
@coopercruse5867 5 лет назад
I have used those cheap chinese adjustable switching power boards and they have all failed not long after installation. Hope you have better luck.
@Dr.Leszek
@Dr.Leszek 5 лет назад
Thanks for another great video, worth that 2 hours of watching to see the Pioneer logo which means it's working :D
@1johnmcmahon
@1johnmcmahon 5 лет назад
Yeah I said Smoke!!!! @ 55.00 Lol. Sorry Sorin, Great video ......for a Monday morning. A tough one but no problem to you.
@TahirGurashi
@TahirGurashi 4 года назад
Hats off ..
@oznewton867
@oznewton867 3 года назад
Completely brilliant. Damn.... you are awesome.
@computersrepaircotesaint-l7407
You are amazing, we love you
@baya24
@baya24 5 лет назад
Love the attitude.. let's do this :)
@ДеянГ
@ДеянГ 5 лет назад
Brilliant mind and explanation again. Thank you и Благодаря
@pak_no1168
@pak_no1168 5 лет назад
We are at the same page, two thumb for you.
@hightttech
@hightttech 4 года назад
I like the opto-coupler trick for identifying unknown rail value -- I'm will try on a supply from the bin.
@KiloWatt304
@KiloWatt304 5 лет назад
your channel is brain food for me !
@peropero3331
@peropero3331 5 лет назад
6:23 hahaha nope
@oussamathedjfreeman
@oussamathedjfreeman 2 года назад
It was too longue video but learning too much, you could solder output buck converter from the first to second easlly to limit using much wiers, what you did is great idea for quick fix for someone who need device soon, else it take power cunsumption, also to protect transformer that could fail with 24h power on it, also the manifucture use old posersupply methode for limiting noise on powet amplifier to get better audio output Thanks for all your videos I need dump for bios asus rog strix hero II gl504gm
@serdarxxx1073
@serdarxxx1073 3 года назад
Sorin can repair the Satellite in the Space, give him one Multimeter and Soldering Iron. 👍👍
@nb1843
@nb1843 Год назад
u know its a good repair dude when hes striping the wire.with his teeths hahaha
@yellouu_theree
@yellouu_theree Год назад
Those small dc-dc step up board are janky . They sometimes overshoot the voltage (to max boost voltage) when you touch them and of course you fry sensitive logic voltage level circut. They have their place for non sensitive low priority stuff but not sensitive stuff...
@hvala73
@hvala73 5 лет назад
Nice job!
@yehtut3209
@yehtut3209 3 года назад
many thanks, sir.
@Omdinek
@Omdinek 3 года назад
The chip ICE3BR0665J is 3,69 GBP on Ebay.
@Radek__
@Radek__ 5 лет назад
For me it is not doggy job. I like your idea and i admire you work. The only thing which is not good for me is that you left there burned ic/chip and also you didn't took out all diodes so they are working now in blocking mode -because voltages are coming from other side. If they will fail (because of this) one day, then all voltages will go to transformer on secondary side first - i don't know what then will happen. And also if you've puted 12volts on 3.3v power rail (by accident) then because of this you should (this time you really should) connect any speaker or even headphones to check everything - if amplifier is working - if there is any sound or good sound without distortion. Because even if that 12volts didn't destroyed anything, then one question appears: Are you 100% sure about that short to ground on 12v rail (which you discovered) was there only because natural diode death, or maybe something was died on the logic board before, and then after the diode died. If your chip can stay there burned and it doesn't make any issues now, so maybe the same situation can be on logic board? - something can be bad (burned) there now, but it doesn't make any shorts now anymore. That kind of idea should be enough to force you to check whole unit more that only "power on/off, screen light, cd out/in/spin". I admire your work and ideas. I like them, but sometimes I don't understand how quickly (without full testing) you make a conclusion that everything is working. (that kind of testing will take only 2-3minutes more) You've said good thing, that"fault was only on that separated power supply so the logic board should be fine." -which normally is true, but not quite here (because that diode could die because of something on logic board, and second thing because you put 12v on 3.3v power rail. That two reasons makes that quote less sense). Thank you for video.
@electronicsrepairschool
@electronicsrepairschool 5 лет назад
'You've said good thing, that"fault was only on that separated power supply so the logic board should be fine." -which normally is true, but not quite here (because that diode could die because of something on logic board, and second thing because you put 12v on 3.3v power rail. That two reasons makes that quote less sense). Thank you for video.' Ok, :))) Well, i come from vcr age, so logical speaking that 15 v power rail its used only by mechanics (dvd drivers+motors), they have to keep electric motors on a separate power rail because of noises made by brushed motors, and i knew its no short there after i checked with my lab power supply. About the 3.3v power rail, ignore the fact i used 12v, you can use 220v on a 3.3v power rail, its all about the current limit, on my current limit voltage dropped to 4.4v, most likely there its a zener diode for protection
@Radek__
@Radek__ 5 лет назад
@Electronics repair school Thank you for answer. Great explanation about 12v rail. Normally if you push play button it should automatically switch to CD mode and start to read music. You've pressed eject button and cd goes out. If for eject you do not need to switch to cd mode, then for the play button should be the same - and it should automatically switch to cd after you push trace back / put cd in. So that was strange and that is why I though that maybe something on the board is bad now, which was using 12v as well. And about 12v on 3.3v... everything is because we don't see voltage anymore - only the amps. I know that it requires two cameras (one on left and on right) but that is why when I've heard your words that you set 12v on power supply, and then after you touch capacitor I saw 2,65ampers on the screen here 20:33, then i though that board gets 12V at 2,65ampers. You didn't say that voltage drops below 4.4V. So please understand me :-)
@alinalexanderson9582
@alinalexanderson9582 5 лет назад
Sorin, you said that the manufacture failed but what about planned obsolescence ? Designed to fail, isn't this a question mark example of what faulty design from planning can be? I would very much appreciate an answer cause I want to hear what you think on this or maybe you could talk about this in one video.
@donald1056
@donald1056 5 лет назад
Congrats
@yellouu_theree
@yellouu_theree Год назад
I would check the amplifier output to be shure i didn't introduce any noise to audio input stage
@livadaruadrian9104
@livadaruadrian9104 5 лет назад
Lunea nici iarba nu creşte........tocmai am realizat că sunteţi rommân şi nu unul oarecare,vă mulţumesc că ne împărtăşiţi din vasta dumneavoastra experienţă,BRAVO !!!!
@konradmroczek2496
@konradmroczek2496 5 лет назад
Sorin, when will You start Your own school/online course? I'm in London and I want to learn.
@ziadfawzi
@ziadfawzi 2 года назад
Thank you so much
@dwaynearthur1476
@dwaynearthur1476 Год назад
Yes what you did speaks volumes for the elections repair . In poorer counties access to parts is hard or next to impossible to obtain . It’s not a dirty repair to me , it’s using your knowledge and skill to repair something that would have been dumped a long time ago . 👍🏾👍🏾👍🏾😎🔥🔥🔥🔥
@hichamhiicham3619
@hichamhiicham3619 5 лет назад
Hi . Please could you help me i have a laptop didn't shutdown. When I shutdown it the screen sleep but light of power and every thing still on until i press the button to shut it down any solution please??????
@damothekiing
@damothekiing 5 лет назад
you channel is awesome ive learnt somethings thankyou
@bigal7864
@bigal7864 5 лет назад
Your prices seem very reasonable, where are situated in the UK?...
@josuevillasante2546
@josuevillasante2546 5 лет назад
Please Mr. Sorin can you make a vid showing the most common components which we need to repair laptops and smartphones like chips, power conectors etc etc thank you so muvh
@hidoHido-vm4en
@hidoHido-vm4en 5 лет назад
@Electronics repair school, Good Job Sorin but why i can ear "Fii mai bun" song from Adriana Antoni? :I
@ThEwAvEsHaPa
@ThEwAvEsHaPa 5 лет назад
Sorin, great video as usual.. i bought same mini switching power supply to repair laptop power rail, but it did not work. Do you think it could be because the original driver could not give PGOOD signal?
@electronicsrepairschool
@electronicsrepairschool 5 лет назад
yes, you have to simulate that signal also
@ThEwAvEsHaPa
@ThEwAvEsHaPa 5 лет назад
thanks Sorin @@electronicsrepairschool
@ThEwAvEsHaPa
@ThEwAvEsHaPa 5 лет назад
is it best to simulate PGOOD signal using 3VALW? I tried using 3VLDO and it didnt work it. I am trying to replace 5V power rail. @@electronicsrepairschool
@Swenser
@Swenser 5 лет назад
My conclusion at the end is that green wire has an intermittent break. If you follow through your connections and voltage apply points you will know why it just starts working. If you move that green wire around a lot my guess is timer error will come again.
@BorhanUddin-vc6hv
@BorhanUddin-vc6hv 5 лет назад
your language and body movement is very nice .
@macgaver1571
@macgaver1571 5 лет назад
From my knowledge that big tranformer for the amplifier to amplified the sound signal to speaker.
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Просмотров 56 тыс.
I thought this Power Supply was fixed. I was WRONG!
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