MacBook Pro A1989 - no power, logic board repair. How a hard to be found fault looks like

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  • เผยแพร่เมื่อ 20 พ.ย. 2024

ความคิดเห็น • 77

  • @Timpano_Francesco_Repairs
    @Timpano_Francesco_Repairs 5 หลายเดือนก่อน +16

    Very hard to find fault...good job Sorin thanks to learne a new one..

  • @repairstudio4940
    @repairstudio4940 5 หลายเดือนก่อน +12

    There is nothing that Sorin can't fix! He can fix all! 🎉❤

  • @retrocomputinggrotto
    @retrocomputinggrotto 5 หลายเดือนก่อน +1

    I watched a video the other day of someone repairing a laptop that had had a repair attempted by someone else who rushed the repair due to not wanting to charge the customer the correct amount so they tried to cut corners and do things quickly which back fired!! Less Speed More Haste as the saying goes 😎 As always, another great repair and good use of fault-finding skills 😊

  • @Alchemetica
    @Alchemetica 5 หลายเดือนก่อน +2

    Most Interesting. I like the way you "think" out loud when diagnosing the problem. I realise if one is going to work on smc then a microscope is definitely required, at least at my age.

  • @wayne975
    @wayne975 5 หลายเดือนก่อน +3

    😂Only Sorin, Jump starting a laptop. Thank you for sharing with us.

  • @DrTeddyMMM
    @DrTeddyMMM 5 หลายเดือนก่อน

    Awesome Job! ... The beauty through complication... Sorin, your skills at diagnosis are amazing. Thank you!

  • @JayJay-ki4mi
    @JayJay-ki4mi 4 หลายเดือนก่อน

    Excellent work! Ps. Metal tweezers by the battery connector is a recipe for disaster. I once slightly touched metal tweezers to an iPhone battery connecter to remove it and caused a short. Seen a puff of smoke. Thankfully it still worked.

  • @venerandarain3
    @venerandarain3 5 หลายเดือนก่อน +4

    doesnt matter with your soldering job sir, You found the faulty Mosfet right there. thats the important thing.

  • @mahmoudsaid153
    @mahmoudsaid153 หลายเดือนก่อน

    Wow that was amazing sir

  • @SatsaSatsa-fv4kp
    @SatsaSatsa-fv4kp 5 หลายเดือนก่อน

    Greetings to you, my beloved teacher from Morocco

  • @8500gtNvidia
    @8500gtNvidia 5 หลายเดือนก่อน +1

    Good job master! Nice hard job!

  • @mihaiacer4395
    @mihaiacer4395 5 หลายเดือนก่อน +5

    electronic God is alwais behing you. if it was me already start to diagnose a dead cpu. You make me love electronic mr Sorin, nice repair

  • @dreamspec1662
    @dreamspec1662 5 หลายเดือนก่อน +4

    Nice fix :)

  • @pierrotlebatisseur9308
    @pierrotlebatisseur9308 5 หลายเดือนก่อน

    What is the yellow plastic called and what is it called, also adding flux on the mosfet using same method would be cleaner? Also, when you check for short circuit to ground, are you using Ohm testing on the multimeter?
    Laslty, thank you for simply the best, most eloquent and least blabbering tutorials Sorin, 🎉❤

  • @rahulmechatronics
    @rahulmechatronics 5 หลายเดือนก่อน +2

    Master Sorin 👍👍👍

  • @christoffer6527
    @christoffer6527 5 หลายเดือนก่อน

    Nice repair as always! 🎉

  • @lucataszarek8782
    @lucataszarek8782 5 หลายเดือนก่อน +2

    Hello🤝nice fix 👍👍👍👍👏👏👏👏👋👋👋👋👋

  • @behzadsaboonchi
    @behzadsaboonchi 5 หลายเดือนก่อน

    very Nice repair ❤👍👍👍👍👍

  • @johnmaloma7623
    @johnmaloma7623 5 หลายเดือนก่อน

    Hi Sorin what is your fixed price for repair whether managed to fix or not?cos is prices are challenging as you said you may find a fault and we don't know after is going to work or not

  • @rudyschurmann6211
    @rudyschurmann6211 2 หลายเดือนก่อน

    it seems to be necessary to solder it very well in place. no? or maybe two solders are running through each other. or is this not possible?

  • @jamesbrowntown6800
    @jamesbrowntown6800 5 หลายเดือนก่อน

    Sorin, did you have to pay for those schematics/models or can anyone find these somewhere online? Love your videos, keep up the good work!

    • @electronicsrepairschool
      @electronicsrepairschool  5 หลายเดือนก่อน +1

      I got it for free searching on google, i believe it was on a forum, can't pay for the schematic, i'm loosing one day of my life every time i'm buying a schematic

  • @Patecabraltica
    @Patecabraltica 4 หลายเดือนก่อน

    At 18:30, what's the name of the golden plastic film Sorin tapes over the board?
    Thanks for the video, BTW, very instructive.

    • @Gonzi-ze1sk
      @Gonzi-ze1sk 22 วันที่ผ่านมา

      Kapton tape

    • @Gonzi-ze1sk
      @Gonzi-ze1sk 22 วันที่ผ่านมา +1

      Kapton tape

  • @jalalyn
    @jalalyn 5 หลายเดือนก่อน +1

    You are the best

  • @stevejones4618
    @stevejones4618 5 หลายเดือนก่อน +4

    Just tell them "less than a new Macbook" ;-)

  • @ngwanindialphonse8447
    @ngwanindialphonse8447 5 หลายเดือนก่อน

    You are great.

  • @rasclew3937
    @rasclew3937 5 หลายเดือนก่อน

    wish you were in the US, id love for you to repair my HP Omen

  • @4KPieEater
    @4KPieEater 5 หลายเดือนก่อน +1

    Was the gate connected to ground through the coil, L8102 ?

    • @electronicsrepairschool
      @electronicsrepairschool  5 หลายเดือนก่อน +2

      No, that it will show 54 ohms, the coil resistance to ground

    • @mreaper2265
      @mreaper2265 5 หลายเดือนก่อน +1

      @@electronicsrepairschool Must be that the low side mosfet was shorted drain to source and the high mfet was shorted source to gate but not source to drain.

  • @ghostbiker7391
    @ghostbiker7391 5 หลายเดือนก่อน +1

    if a customer ask for the price before fixing, always give a price for attempt repair which will be fixed all the time, then u will add other things

  • @abdelhakkerroumi
    @abdelhakkerroumi 5 หลายเดือนก่อน

    I have a MSI KATANA GF66 11UG RTX3070 laptop. My problem is that the graphics card is limited to 45 watts and does not exceed that, which causes a lack of frames while playing.

  • @HaTwingo
    @HaTwingo 5 หลายเดือนก่อน

    good job 👍👍💕

  • @kalmadolang3583
    @kalmadolang3583 5 หลายเดือนก่อน

    Here in philippines is always price first before repair.. We talk first the contract before doing the job😮

  • @CanukArgento
    @CanukArgento 5 หลายเดือนก่อน +1

    charge a diagnostic fee than charge accordingly and if theres extras let the customer know ....

  • @emmanuelvalmas5648
    @emmanuelvalmas5648 5 หลายเดือนก่อน

    Hi Sorin. May I ask what do you mean when you say High Side MOSFET and Low Side MOSFET, how is it defined

    • @ralphj4012
      @ralphj4012 5 หลายเดือนก่อน +1

      Generally (not always) called high side when the mosfet is connecting a positive rail to something, called low side when the mosfet is connecting the something to 0V common or to something lower than the positive rail.

    • @emmanuelvalmas5648
      @emmanuelvalmas5648 5 หลายเดือนก่อน

      @@ralphj4012 Thank you Ralph, it does make sense, what a great community to learn

  • @lmwlmw4468
    @lmwlmw4468 5 หลายเดือนก่อน

    Nice.

  • @ATAG-yn5pd
    @ATAG-yn5pd 5 หลายเดือนก่อน

    I wonder what the thermal camera would have shown

  • @vincentvalentine5900
    @vincentvalentine5900 5 หลายเดือนก่อน

    To disconnect the battery power of the macbbok, you just need to disconnect the battery flex cable not the big flat screw.

  • @1t729
    @1t729 5 หลายเดือนก่อน +1

    The customer is right, I'm Romanian and I've had the same problems with the prices and costs of a laptop repair. There are a lot of scammers here who charge a simple defect even ten times more than they should. Moreover, they use cheap Chinese chips for which you wait more than 3 weeks, while you can find the same components in Europe at slightly higher prices and the waiting and transport time is 2...5 days. This is for a much bigger profit. I was asked for 160 euros for a display cable that I bought from France for 100 euros with fast shipping, a 17.3 inch LCD display they asked for 200 euros and I bought it for 120 euros and so on ...
    In my case, they (3 local repair shops) ask for successive problems, one after the other, a lot of money compared to the price of a new laptop. This shows a lot of stupidity and greed on their part

    • @leerzeichen1910
      @leerzeichen1910 5 หลายเดือนก่อน +1

      ok, inteleg si punctul tau de vedere, dar trebuie si tu sa intelegi ca acele trei service-uri (si impreuna daca le-ai lua) nu le poti compara cu Sorin. de aceea, cand apelezi la cineva ca el sti din start ca mergi pe drumul bun. chiar si asa, a zis si el ca are pret fix pentru fiecare reparatie, deci ai fi stiut de la inceput; in plus, daca observi, dupa ce a diagnosticat problema, a luat legatura cu "clientul" - pt ai spune ce schimbari au intervenit, probabil, in privinta pretului. deci nu e ca "nu am stiut pana nu am dat banul..."

    • @1t729
      @1t729 5 หลายเดือนก่อน

      @@leerzeichen1910 Ai inteles gresit .... Eu m-am referit strict la clientul din RO , il stiu pe Sorin , este PRO si s-a adaptat cerintelor si eticii vestice in schimb mentalitatea balcanica de a fura si insela il face pe roman sa sufle si in iaurt !!!
      Despre asta era vorba !
      Mai este unul pe aici ( USA) care practica preturi imense si repara la norma doar ce poate si apoi posteaza cum si-a cumparat el casa de 1,2...1,4 mil de dolari
      Este imoral si stupid din partea unora .

    • @orange11squares
      @orange11squares 5 หลายเดือนก่อน

      you think those repair services work for free, they have to pay rent, the workers, the bills, taxes, etc.... you can't repair something and ask 10 euro....or 20.... time is money and it's not only the money you pay for the part but also for searching the part, mounting the part, etc....

    • @1t729
      @1t729 5 หลายเดือนก่อน

      @@orange11squares Read my post again ...
      I'm referring strictly to those scammers who try anything to rip off people trust them and they don't know anything about electronics . Between 4 repair shops only one deal with all repairs in a correct , proper mode with any client

    • @leerzeichen1910
      @leerzeichen1910 5 หลายเดือนก่อน

      @@orange11squares if you are good, then you can ask for your money -i'm fine with that-, but if you are "beginner" then i'm sorry, i can not pay your rent, workers and so on...and my device isn't fix at all

  • @laufey_fan9877
    @laufey_fan9877 5 หลายเดือนก่อน

    Hi,
    My Lg gram 15z90Q is dead. I replaced battery and charger Stll not work can you give me a hint??

  • @fonzothebeast
    @fonzothebeast 4 หลายเดือนก่อน

    DAS CRAZZZYYYY

  • @Dohcoms
    @Dohcoms 5 หลายเดือนก่อน +1

    Wow, Exceptional faultfinding, 0.1V difference at resisitor, floating gate, LOL

  • @vex9060
    @vex9060 5 หลายเดือนก่อน

    Flat price for diagnostics if the customer refuses the repair. This is the solution.

  • @leetucker9938
    @leetucker9938 5 หลายเดือนก่อน

    sometimes most of the job is diagnosis and your skill to find the fault. you can't do free estimate

    • @orange11squares
      @orange11squares 5 หลายเดือนก่อน

      absolutely , diagnosis could be 2 hours work and actual repair only 5 min. But without diagnosis you can't know what is wrong or how much it will cost.... therefore you need fixed prices.

  • @rogamingz206
    @rogamingz206 10 วันที่ผ่านมา

    sorin you are my idol, can i work as an aprentice? hahahaha

  • @airgeorge
    @airgeorge 5 หลายเดือนก่อน

    the Poirot of laptops

  • @KremenariKatund
    @KremenariKatund 5 หลายเดือนก่อน

    Repair price?

  • @TheBoooro
    @TheBoooro 5 หลายเดือนก่อน

    You need to rest a lil bit big bear!

  • @SidneyCritic
    @SidneyCritic 5 หลายเดือนก่อน

    Apple guys are always going to ask for a price because they've been to Apple and got a $2K quote - lol -.

  • @jaym5938
    @jaym5938 5 หลายเดือนก่อน

    Still makes no sense having 'great hardware' that cannot be repaired. Nice job showing the world how sad Apple is for not being able to repair their own products.

  • @weerobot
    @weerobot 5 หลายเดือนก่อน

    MacBooks look Fun..lol

  • @dontrotter1099
    @dontrotter1099 5 หลายเดือนก่อน

    so i have a 2015 macbook air that my grand daughter locked the harddrive with a password. shes 9. if i remove the soldered hardrive and replace it, will it reset the pw? i dont do macs, so i am totally lost. would really appreciate some help. thanks.

    • @Aneesh.Asokan
      @Aneesh.Asokan 5 หลายเดือนก่อน

      Most likely a yes, but it's a mac that's made by a company with an intention to make it difficult to repair by any one including apple!😢

    • @johnstone5310
      @johnstone5310 5 หลายเดือนก่อน

      Yes you can reset the password
      Boot into internet recovery
      Open cmd and reset the password or simple just wipe the drive

    • @dontrotter1099
      @dontrotter1099 5 หลายเดือนก่อน

      @@johnstone5310 i need the hardisk pw to do anything. how do i boot into internet recovery? thanks

    • @amritlohia8240
      @amritlohia8240 4 หลายเดือนก่อน

      @@dontrotter1099 Indeed, recovery mode isn't available when you have a disk password. Replacing the drive with a new one should allow you to get into the system.

  • @f1lab535
    @f1lab535 5 หลายเดือนก่อน

    LOL you use 1km of capton tape

    • @gile849
      @gile849 5 หลายเดือนก่อน

      unnecessary waste of tape. :)

    • @ralphj4012
      @ralphj4012 5 หลายเดือนก่อน

      Which doesn't actually stop or reduce heat transfer.

  • @chasingcapsaicin
    @chasingcapsaicin 5 หลายเดือนก่อน

    rohs strikes again

  • @Electricworld-1
    @Electricworld-1 5 หลายเดือนก่อน

    I🎉

  • @c1q3
    @c1q3 5 หลายเดือนก่อน

    google repairs !

  • @Pihmusik-PiCh-Expert
    @Pihmusik-PiCh-Expert 5 หลายเดือนก่อน