Это видео недоступно.
Сожалеем об этом.
Toshiba Pro R50-b-12P, dead, motherboard repair, confusing one
HTML-код
- Опубликовано: 5 ноя 2017
- Ebay store: www.ebay.co.uk...
WebSite: sorinelectroni...
Patreon support: / electronicsrepairschool
RUclips Members: / @electronicsrepairschool
Forum: forum.sorinele...
Discord: www.sorinelect...
My tools: www.amazon.co....
PayPal me: www.paypal.com...
![Toshiba C55 No 3.3/5v rails [Fail] - LFC#216](http://i.ytimg.com/vi/bFtcpo3_mwE/mqdefault.jpg)
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
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..
Best explanation of difference between using multimeter and using powersupply to check ever! Thank you !
This is what I like the most about you professor ,you always admit you were wrong when you make mistakes ,you are awsome.
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.
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
Thank you Leo!
Man! you really are the best in electronics repair.... Thank you for this video...
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 .
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!
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!!!
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.
I believe the second mosfet is ok. Good job Sorin.
We learned a lot from this video.. great job Sorin
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.
very well explained, I repaired my laptop with your help, I had exactly the same problems, you are the best man
I love the phlegmatic way you diagnose and perform the repair .... super !!!!!!!!!!!!!!!!
50:18 Finally. See Mr. Sorin VERY VERY happy!!!
You are doing a great work sir, i appreciate your time and effort.
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
Sorin is getting old. Good job man.
Every one gets things wrong from time to time.
Good recovery tho.
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!
this video answers my questions about using the power supply when testing each power rail. thank you so much sir.
There are a lot we can learn from you bro you are the man
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!
really we can learn alot from unfixing laptop video..great sir..you are our guru..
you are the best youtuber for laptop repairs pls continue the good work
I have been solved my laptop using your explanation. So,thank you so much to you
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
I am learning very nicely from this channel
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.
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 :)
Alex Xomon no offend, but I think you have to seek more experience..not that you have none, but seek more, learn more,..
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,..
Good one Mr Sorin, may God bless you
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.
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.
you are the best tech on youtube i've learned many things watching you bless up keep up the good work
you are the king of defects
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.
Learned a lot from this video, thank you very much. . . God Bless & keep safe
Great, you can repair any faulty laptop, thanks a lot, very informative video, I hope see more.
than you very much sir sorin i always download your videos they are my main reference i really love you man thanks a loooooooooooooooooot
Very very interesting video. Learned a lot from it. Thank you.
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!!
thakns
you from tunisia you are the best
something i had fond out ages ago was black = resistor brown = capacitor
Is it possible a cap can burn and be black. Tricking you into thinking it is a resistor?
Capacitor goes black if faulty . may be if u check if it grounds
Sir, You are so good of what you are doing I admire you that way!!!!! Thank you for sharing this.!!!!God bless!!
Wow!😱😱 You really are a great technician.. thanks for this very informative video.. I learn a lot from you. 👍👍👍
Good job
it was a really good lesson. thank You.
love ur skills...clear explanation ...ty sir. liked and subscribed ...hope i will learn more from ur video
Just shows we cant be right all the time, Thank you Sorin.
great video as all the others... thanks for sharing your time and knowledge...
Reminds me on the LoadPro that is used with a multimeter, mostly used for cars to find shorts. Very similar to find shorts.
I literally said the same thing to myself at the same time as you said “how is that a pro”? Haha
thank you very good illustration
"If this is a PRO,I'm a priest." GOD 😎
Wow this video is so good
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.
incredible gentleman
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......
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.
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.
In this case, I think Pro means windows 10 pro. Love your videos.
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.
That was really exciting.
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
Now I no were to find the 19v power rail thank you for it
"It's on, we have picture"!....lol...this guy:D
First thing with a windows 10 machine ... once its up and running .... go into settings and
DELAY UPDATES ... that way you won't suffer an update when you shutdown the computer.
Its all in the very last block of options .... where you find windows updates and activation, etc.
What was the purpose of the problem resistor, and will it function like before with the bridge.
its just 19 volt power rail, maybe 19 in ->resistor -> 19 out
something wrong when input more than 19 volt
Now you have me wondering about my MSI PRO motherboard :)
Nice work Sorin liked this one a lot realy enjoy your awesome video's
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.
how come the component not shorted when u use zippo or liquid flux and supply the board with volt for testing ???
Hi thank you for all your hard work and great video, i have been searching for long time how to make video on RUclips 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 RUclips
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 RUclips
see ...ruclips.net/user/rossmanngroupsearch?query=video+tools
Great video. What make of scope do you use?
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.
Perfectly right
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?
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
He is using zippo fuel (petrol). You can also use Isopropyl alcohol
Great work pro !!!
excellent video
Mr, you have problem solving skills beyond average, but I think you should improve the presentation of your final work /repairs, like putting back a new resistor or at least leaving a neat solder blob in its place. You didn't start repairing laptops 2 days ago😜 Great problem solving value in your videos, as usual. Not so much about soldering skills. And it would be so nice if your desk didn't look so much like mine 😂😂😂
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 ?
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
ohh man. you are awesome 👏🏽
iportand lesson for me sorin thenks for that lesson
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?
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?
It's like watching Sherlock Holmes solve a crime,All he needs is a deerstalker hat,He already has a magnifier and a pipe.
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?
how about blinking light and only useable if you charge it?
Good video
Uhh, amazing work. Dammit resistor
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?
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.
You are grate sorin thanks alot
hi by petrol you mean gasoline or do you mean bbq fluid. benzină that we put in the car?
5:06 LMAO 😂 you are a comedian too! Thank you for all your videos I love them all.
great job
Thanks from egypt
do u have any repaires made to a blinking power led on laptops that wont turn on??
thank you for leaving a video?
The PRO laptops are ThinkPads T,X,W,P series, eventually Dell Rugged, Panasonic ToughBook. All other, even a MacBooks, are just Chinese toys.
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 ?