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

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[@groovejet33]

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

[@tinkmarshino]

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..

[@4quarius]

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]

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

[@richardbalatayo5473]

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

[@christipan2100]

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!

[@annierenard5954]

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

[@abdelouahababoshighiba2878]

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

[@Labyrnthdom]

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.

[@Dr.muthanna]

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

[@Mecano.r]

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

[@pedrof.7821]

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

[@alfrednoprice2904]

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

[@juanchizabaleta2405]

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.

[@K1ZEK]

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

[@electronicsrepairschool]

Thank you Leo!

[@recommendedforyou157]

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

[@rohanwatson1392]

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

[@freemanrolle7864]

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

[@annyan904]

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

[@cezaridox]

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 .

[@dazzkhan2299]

I am learning very nicely from this channel

[@Dmiliunas]

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

[@edmart3778]

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

[@jeramsadventuretv4905]

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

[@rashh77]

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

[@ricardomardi]

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

[@adrarian]

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!!!

[@bnarzary6506]

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

[@AndrewTuboro]

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

[@vijayantenkasi2116]

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

[@fichambawelby2632]

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!

[@knightwar3]

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

[@TeacherBrunoOneil]

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

[@vhongcarpio3418]

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

[@NicholasDaniel11]

Good one Mr Sorin, may God bless you

[@theethicalh3707]

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

[@adrianp5667]

you are the king of defects

[@johnmanning1006]

thank you very good illustration

[@samsscia]

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

[@tingseahtiong9268]

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

[@saarike]

That was really exciting.

[@mohaha9245]

Great work pro !!!

[@sylwiachaber9667]

it was a really good lesson. thank You.

[@hadireg]

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!!

[@martijn4740]

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

[@Unbricked]

1 of the best! Thanks!

[@mrOga]

incredible gentleman

[@leebah9]

Good job

[@ElTexMexAlex]

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

[@smibenarous9872]

thakns you from tunisia you are the best

[@smartmaxxinformaticacaxias2572]

you are amazing! thank you for this video

[@morshedulalam2983]

great job

[@daniellabial4784]

thank you for this video...

[@MrRvdbeek]

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

[@dmisi1]

excellent video

[@gregwelchfastmail]

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!

[@jetpackk1]

Great video. What make of scope do you use?

[@ammaralmehdi1968]

You are grate sorin thanks alot

[@sitio72]

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.

[@mohammedaram7514]

Thanks from egypt

[@giorgostexnikos4118]

iportand lesson for me sorin thenks for that lesson

[@josephbrennan4622]

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

[@zee7333]

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

[@win-do-die6694]

you are amazing..

[@Liferoad371]

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

[@ahmedslameh6030]

Good video

[@MrReeceyburger123]

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

[@geernellocson7844]

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.

[@byamukamajames7391]

Hi, I enjoy your videos

[@akapal]

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]

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

[@arifryo6823]

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,..

[@NANO-SERWIS.MAREK-DASZKE]

Good Video , nice .

[@jeremywestwood3769]

hi, I insert the power cord tested the adapter which is getting power also the pins in the power connector waited for minute but nothings getting hot. what else to i need to do thank you.

[@ecobob101]

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?

[@JordynBaby63]

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

[@realMrVent]

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.

[@geojor]

thank you ...

[@richardatanacio1295]

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

[@aragaoclaudio]

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?

[@noufiyamol7615]

ohh man. you are awesome 👏🏽

[@eeevvveeevvveee]

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

[@PaulHigginbothamSr]

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.

[@naveedrbl]

if the IC is heating while conected 19volt what i do for it chang it or some another issue

[@hendrickssakete6493]

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.

[@2good4trash63]

From where do you know which capacity u take for replacement without schematic and i didnot see anything on the PCB?

[@RafalScrapper]

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

[@Swenser]

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

[@ajw6715]

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

[@zurimotojibng5754]

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

[@absolutelypc5835]

Hi thank you for all your hard work and great video, i have been searching for long time how to make video on KZbin 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 KZbin 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 KZbin

[@ldiazmdiaz]

see ...kzbin.infosearch?query=video+tools

[@myw4y]

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

[@sergelavallee913]

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.

[@franklianphonerepairkl6936]

you are great

[@preet710]

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 ?

[@PatrickRibbsaeter]

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?

[@metua3653]

thanks , very n niche

[@markpenn4831]

Beyond economic repair ! Great video though !!

[@radishprouction2714]

I have a dell studio 1557 the system os running but no display i did alm the steps of troubleshooting i even clean the ic yet i get no display. What do you thing?

[@LaptopDisassembly]

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

[@yuditanoto6704]

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

[@sarkisavedikian3713]

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

[@anbureji5809]

sir your realy grate

[@iddqds]

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.