Toshiba Pro R50-b-12P, dead, motherboard repair, confusing one

Поділитися
Вставка
  • Опубліковано 21 лис 2024

КОМЕНТАРІ • 264

  • @tinkmarshino
    @tinkmarshino 4 роки тому +3

    Priest Sorin! oh that was funny... Well, Father Sorin.. this was a very very good video.. I am starting to get it! amazing, at 68 with a poor short term memory problem you are starting to teach me new tricks.. I am so pleased.. thank you so much.. You my friend are really a good teacher..

  • @groovejet33
    @groovejet33 5 років тому +11

    It's great the way Sorin talks to the camera. He makes it so personnel, which draws you in and makes you want to listen and learn. This guy has got skills, well done mate

  • @4quarius
    @4quarius 4 роки тому +3

    Sorin, you are a life saver. I can't sleep and I can't work because my son sleeps in the same room I have workshop (hard times), so I watch your old videos to learn something and especially to not get crazy with my insomnia. Just thank you so much, again.

  • @TrueNorth1970
    @TrueNorth1970 3 роки тому +1

    Best explanation of difference between using multimeter and using powersupply to check ever! Thank you !

  • @abdelouahababoshighiba2878
    @abdelouahababoshighiba2878 6 років тому +1

    This is what I like the most about you professor ,you always admit you were wrong when you make mistakes ,you are awsome.

  • @K1ZEK
    @K1ZEK 7 років тому +5

    One of your BEST videos. You had trouble and more trouble ! You talked it out and got it working , great job and yes even at 72 yrs old I to still learn , it is called getting experience. Thanks for making the video.... Leo

  • @cezaridox
    @cezaridox 3 роки тому

    Acea componenta de pe railul de de 19v este o micuță bobină care seamănă cu un condensator dar spre deosebire de condensatori are culoarea gri . Super videorile tale !! Mulțumesc pentru ceea ce faci este un super training in the job pentru mine .

  • @adrarian
    @adrarian 5 років тому

    Hi there , the same capacitor on a Tecra C50-b1271 i honestly don't see any difference between the two models , so after seeing your video i directly checked the faulty cap AND it was shorted so removed it
    The laptop started
    one more time THANK YOU THANK YOU we learned a lot from you!!!

  • @christipan2100
    @christipan2100 7 років тому +3

    same problem, same confusing with an older PRO toshiba laptop with one mosfet in 19v and I did a whole day to find a short!
    nice video professor Thank you!

  • @Mecano.r
    @Mecano.r 4 роки тому +1

    I believe the second mosfet is ok. Good job Sorin.

  • @Labyrnthdom
    @Labyrnthdom 5 років тому +3

    Wow, i am actually learning from you.
    Before I got to the end of this video. I was suspect of the first cap/resistor you removed when you was working and found the missing power up to the burned cap above the fan. Thats crazy, because I dont know that much.
    Thanks for putting in the work on these videos. You are helping alot of people who are interested in this stuff.

  • @richardbalatayo5473
    @richardbalatayo5473 7 років тому +25

    Man! you really are the best in electronics repair.... Thank you for this video...

  • @fichambawelby2632
    @fichambawelby2632 4 роки тому

    Nice job, Sorin. I had the opportunity to fix one of these. It's a bit extrange machine. The input mosfets are located away from the power input, and the traces are not very common. In yours, you almost had a fuse; in the one that I fixed, there were no fuse or anything. It was previously manipulated (I hate it!), and there are no schematics for this model. Finally it worked, but it a was a multiple damaged computer...caps shorted, Mosfets...Congrats!

  • @juanchizabaleta2405
    @juanchizabaleta2405 5 років тому

    You make the repairs,true and live,with a method of resolution,step y step.Many thanks for your knowledge and shared experience.Fraternal greetings, from Argentina.

  • @edmart3778
    @edmart3778 2 роки тому

    50:18 Finally. See Mr. Sorin VERY VERY happy!!!

  • @knightwar3
    @knightwar3 2 роки тому

    You were right at the beginning the short circuit is after the first mosfet, the probes didn't make good contact with the pins because that capacitor you were injecting voltage at is in the same track with the first mosfet and current sensor resistor maybe if you haven't taken that inductor out you could've seen that shorted capacitor the problem is that it was far from what you were seeing on the microscope a thermal camera would've been very helpful in this case and i know it's an old video lol thank you for another good lesson

  • @Dr.muthanna
    @Dr.muthanna 6 років тому +15

    We learned a lot from this video.. great job Sorin

  • @alfrednoprice2904
    @alfrednoprice2904 4 роки тому +1

    very well explained, I repaired my laptop with your help, I had exactly the same problems, you are the best man

  • @annierenard5954
    @annierenard5954 7 років тому +3

    I love the phlegmatic way you diagnose and perform the repair .... super !!!!!!!!!!!!!!!!

  • @samsscia
    @samsscia 3 роки тому

    You should do a video on trouble shooting with a bench power supply. I've been repairing electronics for 20 years, but I never learned to use it as a trouble shooting too. only to supply voltage. Great videos, I watch them while repairing UPS Power Supplies for the telecommunications industry. Thanks

  • @Dmiliunas
    @Dmiliunas 4 роки тому

    Sorin is getting old. Good job man.
    Every one gets things wrong from time to time.
    Good recovery tho.

  • @geernellocson7844
    @geernellocson7844 4 роки тому +1

    honestly I learned a lot... thanks to you, without your videos, the things is your a wonderful teacher to all, I was a electronics technician just learning in our school, I felt is useless and turned into ID Interior Designer, cause of your videos with learning, looks like I wanted to be come a Technician again, honestly looks like easy to fixed because of your sharing ideas about Electronics trouble shooting which is I get rid of it... anyways many thanks I hope more videos encounter possible ideas from you.

  • @vijayantenkasi2116
    @vijayantenkasi2116 5 років тому +1

    really we can learn alot from unfixing laptop video..great sir..you are our guru..

  • @recommendedforyou157
    @recommendedforyou157 4 роки тому

    this video answers my questions about using the power supply when testing each power rail. thank you so much sir.

  • @pedrof.7821
    @pedrof.7821 7 років тому +4

    You are doing a great work sir, i appreciate your time and effort.

  • @dazzkhan2299
    @dazzkhan2299 5 років тому

    I am learning very nicely from this channel

  • @freemanrolle7864
    @freemanrolle7864 7 років тому +1

    There are a lot we can learn from you bro you are the man

  • @annyan904
    @annyan904 6 років тому

    you are the best youtuber for laptop repairs pls continue the good work

  • @bnarzary6506
    @bnarzary6506 4 роки тому

    I have been solved my laptop using your explanation. So,thank you so much to you

  • @NicholasDaniel11
    @NicholasDaniel11 4 роки тому

    Good one Mr Sorin, may God bless you

  • @akapal
    @akapal 6 років тому

    Hello Sorin, i have to disagree with you at the start of the video, i didnt finish the video yet.
    -Diode mode is meant to measure diodes, actually the multimeter produces a small voltage and then measures how much voltage is lost at the diode like 0,7V, when measuring from ground to plus the small voltage has to travel all the motherboard and you have all voltage lost like you did on your test and when you put your leads together you can see 0V (dropped/lost) exactly like your test.
    - To check the fuse you could use continuity on the multimeter
    -to check a short we have to use Ohm test on the multimeter and not diode, they are not the same.
    thank you for your fantastic videos :)

    • @arifryo6823
      @arifryo6823 5 років тому

      Alex Xomon no offend, but I think you have to seek more experience..not that you have none, but seek more, learn more,..

    • @arifryo6823
      @arifryo6823 5 років тому

      Alex Xomon you can see louis rossman video on using diode mode...if you dont believe me, you surely can believe rossman, who is more knowledge and popular,..

  • @sitio72
    @sitio72 5 років тому

    Seems to be a flawed design by Toshiba. Just fixed the same, with exactly the same issue. Your video helped me a lot, thank you. Couldn't see that blowed CAP near heat pipe. Mine blowed very "inteligent", just a small crack, impossible to see without super magnification.

  • @ElTexMexAlex
    @ElTexMexAlex 6 років тому

    Reminds me on the LoadPro that is used with a multimeter, mostly used for cars to find shorts. Very similar to find shorts.

  • @hadireg
    @hadireg 5 років тому +1

    love Mondays 👍😉
    Sorin for those repeating questions, would it be a good idea for each new video to be inside a Diagnosis playlist let's say "shorted MBs" etc... I know this could be a hassle, but if possile, you'll just tell views to go and watch that topic playlist ;-) thanks for everything and the clear explanations!!

  • @adrianp5667
    @adrianp5667 4 роки тому

    you are the king of defects

  • @jetpackk1
    @jetpackk1 7 років тому +3

    Great video. What make of scope do you use?

  • @PaulHigginbothamSr
    @PaulHigginbothamSr 2 роки тому

    I stopped doing updates about 7 years ago. What happened was with every update the machine ran a bit slower, and lost another function it had when new. After about 5 updates the machine is dragging, and none of the extra functions it had are available. So I bought another hard drive and with the new machine I saved its state to when new and put in a faster and bigger hard drive. As it slowed down and lost functions after a number of years, I put the original slow hard drive in and was pleasantly surprised how much faster with all the functions still working and copied that to the new drive. The problem is I lost all the information and pictures I needed I had added. So I saved them to a thumb drive next time.

  • @rashh77
    @rashh77 7 років тому +1

    Great, you can repair any faulty laptop, thanks a lot, very informative video, I hope see more.

  • @gregwelchfastmail
    @gregwelchfastmail 6 років тому +1

    To shutdown windows without installing updates. Click on the Desktop, Press Alt+f4 then select (shut down) OR Press Win+L to sign out. At the login screen, click Power icon (bottom right) then choose Shut down. This will save you lots of time!

  • @sergelavallee913
    @sergelavallee913 3 роки тому

    That's why Sorin prefer the BRUTAL FORCE HIHIHIHI! We miss you a lot Sorin. Come back even if it's just to talk! Thank's and take care.

  • @rohanwatson1392
    @rohanwatson1392 5 років тому

    you are the best tech on youtube i've learned many things watching you bless up keep up the good work

  • @LaptopDisassembly
    @LaptopDisassembly 7 років тому +5

    What was the purpose of the problem resistor, and will it function like before with the bridge.

    • @yuditanoto6704
      @yuditanoto6704 3 роки тому

      its just 19 volt power rail, maybe 19 in ->resistor -> 19 out
      something wrong when input more than 19 volt

  • @aragaoclaudio
    @aragaoclaudio 7 років тому

    First, congratulations for all your videos, I learn very much from them. I have a question: in this video, just before you find the problematic capacitor(20:53 min), you were about to say what you have to do if you can't see what is getting hot with the power supply. Could you tell what do in this situation?

  • @josephbrennan4622
    @josephbrennan4622 5 років тому

    Just shows we cant be right all the time, Thank you Sorin.

  • @vhongcarpio3418
    @vhongcarpio3418 4 роки тому

    Learned a lot from this video, thank you very much. . . God Bless & keep safe

  • @RafalScrapper
    @RafalScrapper 3 роки тому +1

    yeah you totally right i think i just fry memory and CPU at my last attempt lol tough I got to learn it somehow and as far I know what I do wrong I do learn something

  • @wisher21uk
    @wisher21uk 6 років тому +4

    something i had fond out ages ago was black = resistor brown = capacitor

    • @Labyrnthdom
      @Labyrnthdom 5 років тому +1

      Is it possible a cap can burn and be black. Tricking you into thinking it is a resistor?

    • @serwadddayasin8404
      @serwadddayasin8404 4 роки тому

      Capacitor goes black if faulty . may be if u check if it grounds

  • @JordynBaby63
    @JordynBaby63 5 років тому +2

    In this case, I think Pro means windows 10 pro. Love your videos.

    • @realMrVent
      @realMrVent 4 роки тому

      I don't think it would make much sense to put that in the model number. What you mean would be in the article number at most, but I've never seen it in a model number.

  • @ecobob101
    @ecobob101 6 років тому

    That was good. I learnt a lot. I did think that the first short was more black than yellow so thought it maybe a resistor. That is my limited experience so far black for resistor and yellow for Caps. Is that wrong? I replace everything from another board with that theory as I'm not confident with leaving things off.
    Is there a quick answer for why those Mosfets have four exit pins connected to the same place and don't have separate lines leading away from them?

  • @theethicalh3707
    @theethicalh3707 5 років тому +1

    than you very much sir sorin i always download your videos they are my main reference i really love you man thanks a loooooooooooooooooot

  • @ricardomardi
    @ricardomardi 7 років тому +1

    Very very interesting video. Learned a lot from it. Thank you.

  • @eeevvveeevvveee
    @eeevvveeevvveee 5 років тому

    nice job, teach me a a lot. thx. But why you took the cap and the resistor, and the laptop can still working ?

  • @tingseahtiong9268
    @tingseahtiong9268 5 років тому +1

    love ur skills...clear explanation ...ty sir. liked and subscribed ...hope i will learn more from ur video

  • @leebah9
    @leebah9 5 років тому +2

    Good job

  • @smibenarous9872
    @smibenarous9872 3 роки тому

    thakns
    you from tunisia you are the best

  • @MrReeceyburger123
    @MrReeceyburger123 Рік тому

    I literally said the same thing to myself at the same time as you said “how is that a pro”? Haha

  • @ajw6715
    @ajw6715 5 років тому

    Excellent teacher! My laptop misses letters and space. New keyboard. What can be the problem?

  • @MrRvdbeek
    @MrRvdbeek 6 років тому

    Now I no were to find the 19v power rail thank you for it

  • @sylwiachaber9667
    @sylwiachaber9667 3 роки тому

    it was a really good lesson. thank You.

  • @PerrynBecky
    @PerrynBecky 6 років тому

    I've repaired cars for 35 years, and I've ran into electrical nightmares that were connected "bass-ackwards" where it made no sense how the component I was trouble shooting was wired. Even with a schematic, it didn't make sense on certain vehicles, and if you work on many makes and models, it only adds to the complexity and often perplexity of the job. Glad you got it figured out.

  • @AndrewTuboro
    @AndrewTuboro 6 років тому

    Wow!😱😱 You really are a great technician.. thanks for this very informative video.. I learn a lot from you. 👍👍👍

  • @2010LILELLIS
    @2010LILELLIS 4 роки тому

    Great job Sir,you inspire me a lot but I'm a fresher thus it's hard for me to follow up,is there any beginner videos in which a fresher like me can build up from ?

  • @TeacherBrunoOneil
    @TeacherBrunoOneil 6 років тому

    great video as all the others... thanks for sharing your time and knowledge...

  • @johnmanning1006
    @johnmanning1006 6 років тому

    thank you very good illustration

  • @zurimotojibng5754
    @zurimotojibng5754 6 років тому

    are you bypassing those resistors? or those are diodes or fuse?very imformative thank u.......

  • @preet710
    @preet710 5 років тому

    hi i really liked leaned videos and this video is very good what liquid u put in for checking short capacitor ISO PROFILE/Alcohol /petrol ?

  • @ParadoXGaminGMijat
    @ParadoXGaminGMijat 5 років тому +23

    "If this is a PRO,I'm a priest." GOD 😎

  • @Liferoad371
    @Liferoad371 4 роки тому

    Now you have me wondering about my MSI PRO motherboard :)

  • @eduardocamps8148
    @eduardocamps8148 4 роки тому

    Si amigo hay configuraciones con un diodo y un mosfet de entrada lurgo la resistencia de sensado y el otro mosfet es de conmutación para alimentación del equipo por bateria. Esa configuración es vieja.

  • @jeramsadventuretv4905
    @jeramsadventuretv4905 6 років тому

    Sir, You are so good of what you are doing I admire you that way!!!!! Thank you for sharing this.!!!!God bless!!

  • @richardatanacio1295
    @richardatanacio1295 6 років тому

    hi man, i am a fan of your repairs coz it helps me a lot. . . can i ask what is the difference with the multimeter and your power supply multimeter? can you make a video of it? thanks men

  • @saarike
    @saarike 7 років тому +1

    That was really exciting.

  • @mrOga
    @mrOga 5 років тому

    incredible gentleman

  • @davidtoro6006
    @davidtoro6006 4 роки тому

    Hello, what liquid you use to detect heating or short component. Thank you, many years under your belt, love your video creating heating blower which you really lived that video:memories for you

    • @diy_home
      @diy_home 4 роки тому

      He is using zippo fuel (petrol). You can also use Isopropyl alcohol

  • @f1lab535
    @f1lab535 7 років тому

    what is the difference between a capacitor and a resistor?

  • @GregM
    @GregM 7 років тому +3

    Did u replace the fuse that you removed along with the cap that you also removed looking for the short?

    • @omardmc889
      @omardmc889 6 років тому

      no he did'nt

    • @johncote1268
      @johncote1268 6 років тому

      Replace cap

    • @protonx80
      @protonx80 4 роки тому

      the original fuse was blown ... and was replaced with a more technically advanced fulse ... called wire 😊
      the smirk on his face when he does that in all his videos ... is .... well undescribable
      thank you sir Sorin ... your videos are very very informative ... i am not in the repair business ... and still i watch all of your videos
      ( i used to deal in computer hardware from 1994 to 1997... )

  • @ytrew9717
    @ytrew9717 2 роки тому

    I'm always surprise to see you replacing components with just a bridge of solder. Are you not afraid that it will break things? (They are there for a reason right?) Do you replace them after testing? If so, how do you know the value without schematic?

  • @absolutelypc5835
    @absolutelypc5835 6 років тому

    Hi thank you for all your hard work and great video, i have been searching for long time how to make video on UA-cam and i am struggling with it , if you can help me i would really appreciate
    Here what I need to know
    1- Equipment to make video on UA-cam
    2- How I connect microscope and other equipment
    3- Programs as you do move from the microscope to your face
    I can't find anything helpful on UA-cam

    • @ldiazmdiaz
      @ldiazmdiaz 5 років тому

      see ...ua-cam.com/users/rossmanngroupsearch?query=video+tools

  • @iddqds
    @iddqds 5 років тому +1

    i observed like many of these repair videos on youtube ends up same. repairmen almost always discovers a blown up component after spending time on other but highly likely causes through trouble shootings.

  • @allankartin
    @allankartin Місяць тому

    Sorin, you are a geniurs, thank you

  • @martijn4740
    @martijn4740 5 років тому

    Nice work Sorin liked this one a lot realy enjoy your awesome video's

  • @macgaver1571
    @macgaver1571 4 роки тому

    actually i find the problem after u pickup the blow up cap, coz i know first one u pick up is a resistor depen of the color n power real.....
    coz if that is a cap, there is must have negative or minus real, but I can't see minus real.....
    so i quess that is main power.
    n after u cut down the resistor ofcoz the first gate is no shot anymore coz the short is not in first gate like u think...
    btw i like all of ur education.....
    thks for all the video......

  • @zeldasharpe131
    @zeldasharpe131 4 роки тому

    Hi Sorin, what is it that you put onto the motherboard and why? I notice that you put that liquid round a chip when you are going to replace it.

  • @alejandrovelasco9573
    @alejandrovelasco9573 6 років тому

    That technique is amazing. What liquid did you use?

  • @Swenser
    @Swenser 5 років тому

    Hi Sorin, I have laptop shuts off/ power cuts random but within a short time only when AC used. tried different adapters. Do you think can be battery/AC power management circuit. I'm thinking must be electrolytic caps in pmic circuit because its random. On battery only works

  • @PatrickRibbsaeter
    @PatrickRibbsaeter 5 років тому

    one question sorin. when u use the Dc supply to check for short, do u use only Volt, or do u also use it with Amp same time?

  • @NANO-SERWIS.MAREK-DASZKE
    @NANO-SERWIS.MAREK-DASZKE 6 років тому

    Good Video , nice .

  • @giorgostexnikos4118
    @giorgostexnikos4118 6 років тому

    iportand lesson for me sorin thenks for that lesson

  • @marinescug
    @marinescug 6 років тому

    It was a story about a repair main that asked 101 quids for repairing an old sovietic piece of equipment, without schematics. He performed "just a soldering on a wire". The guys form accounting department gets mad about the fee of "just soldering a wire".
    1 quid for soldering, and 100 for knowing the place :-). Do you know that repair man ? :-)
    The non joke part: because it is about a PRO laptop, they have replaced an another mosfet with a junk jumper resistor dressed like a capacitor.

  • @faresshaker7765
    @faresshaker7765 7 років тому

    thank you , which pin you tested in the startup chip for 3.3 v , and is it the same pin if we have another brand

  • @khentdelacruz6198
    @khentdelacruz6198 4 роки тому

    thank you for leaving a video?

  • @gile849
    @gile849 2 роки тому

    Uhh, amazing work. Dammit resistor

  • @myw4y
    @myw4y 4 роки тому +1

    "It's on, we have picture"!....lol...this guy:D

  • @sarkisavedikian3713
    @sarkisavedikian3713 2 роки тому

    do u have any repaires made to a blinking power led on laptops that wont turn on??

  • @zee7333
    @zee7333 4 роки тому

    5:06 LMAO 😂 you are a comedian too! Thank you for all your videos I love them all.

  • @hendrickssakete6493
    @hendrickssakete6493 5 років тому

    Have a same kind of laptop but there's no power passing through after the power adapter on the mother board. What might be the problem do you think?
    Please help me out.

  • @adnanbalkhi7969
    @adnanbalkhi7969 7 років тому +1

    thank you ,what is the liquid that you use?

    • @omardmc889
      @omardmc889 6 років тому

      how come the component not shorted when he use zippo or liquid flux and supply the board with volt for testing ???

    • @almerkechalmer4416
      @almerkechalmer4416 6 років тому +1

      When you have a fluid with free ions it will conduct. Any acid or alkaline substance will conduct. Hydrocarbons have no free electrons, thus they cannot conduct electricity.

    • @ldiazmdiaz
      @ldiazmdiaz 5 років тому

      @@almerkechalmer4416 I also seen 90% alcohol used

  • @georgedone7997
    @georgedone7997 7 років тому +4

    Year are perfectly right Sorin on both aspects: 1. So many people never or seldom update and do not realize how much more this exposes them to computer viruses and drive-by downloads. Windows updates is one aspect, but they also never update Flash, Java, their browser and so on. Then their computers get enrolled by hackers as a DDOS bot and all Internet suffers because of their incompetence. The second aspect is how gullible customers are in believing a sticker which says "Pro" and buy very, very bad designs. For my family I'm buying always second hand business laptops, in principle Lenovo T430, or Dell Latitude E6330, or HP Elitebook for about 150Euro. Then I install a SSD and max out the ram and the CPU and I get a durable laptop which I use for another 3-4 years at about the same price this garbage sells and outperforms most of them. I watched many of your repair videos and only once I saw an Elitebook, mostly is just low-grade computer stuff because those break so often with their undersized fans and plastic cases.

    • @electronicsrepairschool
      @electronicsrepairschool  7 років тому

      Perfectly right

    • @GCAGATGAGTTAGCAAGA
      @GCAGATGAGTTAGCAAGA 6 років тому +1

      Just don't use flash nor Java. Especially flash, most browsers can play video without it. Also software developers nowadays is so obsessed with these updates, that they absolutely forgetting about usability and optimization of their programs. I have nothing against security updates, but the developers trying to change things everytime when you get used to it so it's getting very annoying. Personally, i do not have updated firefox a very long time and got no viruses what so ever. Why? Because newer version are slower and do not support most of the plugins I have using. If it works as it is - why do you need to change it?

  • @mohammedaram7514
    @mohammedaram7514 6 років тому

    Thanks from egypt

  • @jacka.4774
    @jacka.4774 4 роки тому

    hi by petrol you mean gasoline or do you mean bbq fluid. benzină that we put in the car?