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- Опубліковано 5 тра 2020
- It's board repair time, with a Lenovo Yoga that appears to be stone dead. I tried going a little slower in this video to help people who are learning.
Associate links for the Mini TS100 Soldering Iron I use:
US / International - amzn.to/3d2kxyk
UK - amzn.to/2ARyxwv
Spoilers down below...
Dead capacitor on back side of board, at CPU Vcore input, shorting VIN+ (the main power rail) to ground. Discovered by injecting voltage and finding heat source. Removed dead cap.
_____________
Thanks to music bros down below!
Synthis - / samsynthis
Thomas Hood - / officialthomashmusic - Наука та технологія
Q&A Comment Thread (comments I've already answered)
Q: You didn't clean the fan.
A: Correct, I forgot. I cleaned it off-camera the next day, just before I recorded the 'diagnosing without schematics' video that features the same laptop with a clean fan.
_
Q: You should use an IR camera
A: Yes. I thought they were super expensive, but I can see that you can get basic ones for about $200 now, which isn't awful. It's on my wishlist.
_
Q: Use flux!
A: Yes! I made a complete hash of the soldering in this video because I was being lazy. I do have flux and I do use it in other repairs.
1) you did solder or what is that heat pipe which solder the capacitor on board?
2) the red wire for injecting power into the board could be soldered on the power port pins ?
Ur weight is gold! Keep making these videos! Ur knowledgeable, patient and human that makes mistakes and come back to acknowledge in a message pointing it out! Keep humble and making more videos! Thank you!
Can you repair a external drive
Why didn't you test the charger the first time?
ALERT I WNAT TO HELP YOU FIRST when you inject power into your mobo dont say tracks can handle 19V they are rated for mby 8Amps and if you add ist R its mby 0.2 to 10.8V max SO dont say they can handle 19V say they can handle ~6A (good luck puting more than 5V on it whitout current protection) SECOND your soldering iron tip is fucked you should use temperature under 400C or under 750F (mby you turn it up when you solder on ground or bigger pads) and your tip should be tinned (shiney looking) your tip get more gray if you overheat it so its noth worth it
Can I just say that your attention to explaining the problem and giving straight forward explanations without any fancy mumbo jumbo that no one understands has made me hit the subscribe button, my friend! It's hard to find someone that can explain something for most people to understand but you're really good at it. I'm away to check out your board repair basics playlist!
These are exceptional. I enjoy the stream-of-thought approach which helps show your troubleshooting approach.
Dear graham,that was an absolutely outstanding videi.you were very clear precise methodical.and most importantly,you spke slowly and very clearly do people can understand you..
Im an electrician of 20 years and that fault was exceptional.
absolutely superb photography too.
Please keep up the most superb videos,steve from the uk
Bravo, very well executed right from the start to the end. Presentation and method applied to locate the short, spot on. Keep up the work.
I agree apart from him soldering ground wire to area where screw goes, could have used many other grouding spots.
Recommended this channel for beginners. Love this video.. Full of tutorial, facts and it really good to enhance understanding how motherboard works.
That was awesome. I was thinking,”Damn, going to need a new motherboard.” Then you started probing and fixed it, Amazing!
Love your work. Goes to show you that you don't need super expensive equipment to solve issues just intelligence.
Watched some of your instructional videos to help regain some hope for my situation. Then while searching for content more specific to my model, I found this. My hope is completely restored.
Even-though, i have a little bit of experience troubleshooting electronics,i have completely overlooked the trick of injecting power to figure out the faulty parts.I remember i used this technique when was in college to troubleshoot the Superheterodyne receivers!
Thank you very much for sharing!
With your videos, I managed to repair my bluetooth speaker, and I learned loads of things. Thank you !!
Adamant your videos are always educational, entertaining to watch and high quality ! Thank you very much, keep up, you deserve millions subs !
An infrared camera for finding hot components should help...
Seek compact pro
+1 and +10 entertainment factor
@@nahventure3873 Can use a can of air and hold it upside down and spray it so it freezes the components and wait for the one to get hot first.
alcohol, will boil off quickly, so you could use that, oh you mentioned it, nvm
hi..where can I find this cam?? thanks.
I've been toying with the idea of repairing laptops as a part-time gig. I have a full set up to do proper work, but I lack the confidence to pursue it further. Watching your videos and those of a few other youtubers really helps, so I thank you for your great videos and hope you keep going with it.
Your work is lovable! you saved my life from fault tracing!
One of the best video I've seen on troubleshooting motherboard shorts. Learnt something today. Thank you.
Well-thought out and methodical with good explanation accompanying work. Thanks very much!
This is one of the coolest video I've seen on youtube in a long time!
What a great video! Very interesting and educational. Thank you, Adam, for sharing your knowledge.
Well done Adam, thats so amazing watching you do this, flip.
Legend...well done...I dont know much about fixing laptops...this has really been an advanced lesson much appreciated
Keep it up my friend! I found your channel yesterday and i've been watching you for some hours now! Thanks for sharing knowledge!
one question. if you were to replace that capacitor how would you know which value should you go with? depending on size? thanks a lot!
You need to have a schematic on hand. Size isn't an indicator unfortunately. Another way of figuring it out is to look for near-by capacitors doing the same job. At 26:45, the good capacitor on the right is doing exactly the same job for the other VRM - so we could remove that one and measure its capacitance, and we'd know what to replace the bad one with.
However, most of these small ceramic caps are either ground-loop inductance filters (not critical) or if they're bypass, there's usually more than one, and it can afford to lose one.
@@Adamant_IT thanks you very much for the information!! Have a nice day!
"I'm gunna turn on the poor man soldering iron.. No just use the good one!" you're hilarious mate, really really good videos, iv just found you, I'm crying out for this kind of information, thankyou!
Very informative piece, the techniques applied are on point. Thanks for sharing the knowledge.
I am starting a new school about IT and this is my first time waching this type of video and i have lurnd so muchi in jest this 1 tnx alot you are owsm , keep it up !!
excellent thought process , enjoyable video to watch under lockdown, clear video with great content , thanks for sharing .
Flir One Pro needed here, With the cam I’d have found this in about 10 seconds flat.
Love your videos though, very educational for people and just the kind of content needed to get new generations interested in proper fault finding
Amazing repair! Learned a good tip from it, thank you for sharing :D
probably one of the best videos i have ever seen, greetings from Argentina
I'm learning so much just watching these videos
so appreciate all you;re lessons and repair videos i am learning so much!!!
Very interesting. Like the flow of thoughts!
It's not a waste of time to see it twice (it's already in my favorites). Thank you very much for sharing. Greetings.
Omg, I love this guy already, glad I found him, that's one subscriber!
Hi, I tried to claim warranty on my laptop and they said it was customer induced damage and refused to pay. Long story short I got it shipped back and with the help of this video, I fixed my laptop myself. It was the same capacitor that caused the short too! thanks heaps
awesome work! amazing troubleshooting and repair!
first time I have come across this source of information.... I am very very very impressed....
great work, thank you for outlining your thought process
Google randomly recommended this video to me, right before I'm about to move to Dorset. Now I know where I'd take my repairs to
I have watched the full 42min video and liked it ... great work .i have to buy myself some good soldering iron someday 😭
Meticulous and intelligent method of approach. Well done!
Congratulations for your great work!. Greetings from Athens Greece!.
trawled through a lot of you videos to find this one No 204 it is exactly the same problem I have on my Dell so I will try following your video again up to the adding power supply and short circuiting wires I call that squeaky bum time ! and as a total beginner as far as I dare go lol
I learned something new, I am really grateful for this, thank you.
What did you learn?
He learned how to clean the thermal paste off the heatsink.
I had a very similar issue with an Acer Aspire. With your video and easy explantion I was able to find a odd looking capacitor in the cpu vcore circuit. No power insertion needed, just a bit of luck. It was also at the back of the board, while the mosfets were on top. I removed the cap (was kinda welded to the board) and the board was OK! Not replaced the cap. Thanks
Best youtube channel I've come across in a minute
Awesome video thank you, I found it very educational, and learnt alot from it. Also I thought it was very constructive to the video leaving in the mistaken location of the dodgy capacitor 👍.
Cheers Will.
Bravo...great explained, step by step, go on...and thanks for your free lesons 😊🍺
Thank you for the video! My Lenovo Yoga 2 13 (symptoms: no power) also had a dead short capacitor near the display connector. However, it also killed the main power controller. Thermal imaging camera greatly speeds up troubleshooting.
It's useful to keep an eye on the voltage when the power supply is in current limit mode. That will tell you how much power you are putting into the board. 3A at 0.1V for example is only 0.3W and that heat is probably not detectable. The only way the power supply is able to limit the current is by varying the voltage.
" I tried going a little slower in this video to help people who are learning.
"
Yea... and u did it right... I'm learning (learning English too :D )
From Hungary
As I studied from learning repair is that as a technician we have to be patient sometimes to get the result before going into wrong further decision which could a destructive attempt to the board🤣. Adamant is very patient in his work. I should learn it.
This has been the best clear experience yet of a laptop w/dead short on the mother board. I was forced into a medical early retirement after wearing out joints, pinching nerves, tearing rotator cuff and since July 2020, my 5th lumbar fusion. First in 1987 so much fun! Pain, yeh!
I have a Dell Inspiron 15, series 3000, AMT chip Cedar 13283-1 (AKA 3283) that did the same thing after over 3 years of service. I can take your vehicle apart, put it back and run as new. 1 of 4 tool boxes is electrical only as at dealer, I was a 1 man show for a brand they added. Unlucky in a way because it takes all tools to fix front, middle and tail + everything in between. Using a voltage supply and vary the amps allows you to sneak up on shorted part and yes, a thermal camera would be nice. Maybe Santa will visit!
I confirm complaint, then diagnose root cause. You did this plus thermal paste. Same used under ignition modules for decades...nice touch!
You provided me a clear path to use my Fluke 87 V DMM, limit current, power board and look for warm/hot shorted parts. I always study the schematic to judge where to start for most likely is root cause. Not 100% how to get schematic and Dell #. Using the info under the SDRAM is close, but every time, there 4 more numbers other than Cedar 3283.
If you have advice for this X-farm guy who self taught to fix cars, no trying to sell tools, parts and much more. I really enjoyed & will be looking at your videos! Liked, subscribed & saved. Nebraska, ASE Master Tech since 1978, Retired against my will. Forever Learn!
that is the exactly repair basic. like other youtubers using thermal camera bla bla more expensive equipments bla bla, and those cannot buy everyone. you are amazing teacher
Just like a pro. You are so good.... Good job!!!
Great video like always, I hope you make a video. about how use a power supply to find a short to ground the right way...
you forgot to put the plastc heat shield under the M.2 SSD. Probably not a big issue, but I would have put it back to be sure.
good tech, plenty of professional analysis and patient.. tks frm sharing
Fantastic video and very informative. Thank you.
awesome repair!
Great bit of problem solving mate
Excellent repair!
Thanks so much for vids love all your work keep it real thanks again . P.S. threw you a thumps up cheers
I have the same laptop series but with i3. Its not broken yet :D , but if do, i know where to check. Awesome how you explained how things works :) . Its entertaining and informative at the same times. I might check the other videos as well. Cheers from Amsterdam
Nice job. Already follow your channel, but I found this video while trying to trouble shoot an LCD TV power circuit and a fragged Lenovo S7 bios. Always love your presentations.
I was going to ask about IR cameras, but I see someone beat me to it; they're on my (short) wish list too. I've had my hands on several types and there is a definite difference in what you get for the money spent, but even the cheap ones that you can run off a smart phone would be useful here. If you want a good one for a deal, look into a used or clearance one for a housing efficiency inspector. That's what I'm holding out for.
Cheers!
From 9ja, you just earn a subscriber ...well done sir
My brother.. you amazing me today. After watching 100s of other video and feeling confused. U showed me in 1 video that u know your stuff.!!
Exactly that's what went wrong with my PC since march and I just dump it, but thanks to you cos am gonna get it back to life.
Excellent video. Thanks for sharing.
very nice multimeter gee u don't need a fluke how refreshing...ok ok i have seen repairs go on for days using the quipment manuals, software, even talking to the factory on all types of equipment and may be it will get repaired? this is soo kool to watch you in action...thanks...:) with results!
Very good description video, nice teacher.
Great Video: all do honesty though depending on the model of lenovo will depend on what security measures you run into thats what makes them good machines but also bad ones as well for example some models if you replace the SSD the on board security blocks you from using it unless it detects the original drive or if the wifi modual fails you have to replace it with the approved replacement part from lenovo. they really are a mixed bag with security and blocking repair. which is sad
Nice job! Anybody from your audience knows a pc repair man like you in the Los Angeles Area? Thanks for your great videos!
Iam learning, the explanations are great keep it up
Love you videos, very natural, thanks.
I am from Sri Lanka I really enjoyed this video and very helpful video for me thank you.
Awesome content. Thanks for sharing!
I HAVE ENJOYED YOUR VIDEO FROM UGANDA. THUMBS UP.
Nice to see a true pro at work , not just scrapping the board but finding the fault in the board your a rare breed Sir, just started basic repairs myself example new lap top case new hinges changed up the ram also ssd route on my two laptops, reason for doing DIY getting conned by my local repair shop to often , biggest problem i have had with my large fingers was the two wi fi push on fits question ?????? is there an easy way to attach them . At 74 years old i like things a bit easier Lol .
I really appreciate the lesson.
Wawww i am very interested in the stuff you do and feel im learning a few things watching you, iv subscribed as you give valuable information thanks,
Good to see that you didn't edit out that you forgot to put the shield back!
It could have happened to me!
So pleasant watching the British Louis Rossman. Thank you.
You are explaining each step very well, pls tell us whenever you are using any equipment we need name of each e.g paste,srew driver, capicator name,mosfet name, IC name, for removing the soldering wire paste. Which lense we can use during repairing the circuit ? to see clearly electronics devices on the board.
Again thank you very much for explaining everything. You are amazing and doing great work
Spot on, Graham! 👏🏻☕️
Great videos, keep them coming
very good sir easy to understand what youre saying in this video.god bless u
it worked for me man it's like a charm I don't even have to use any tools I just looked for a broken piece of the electronic part using a magnifier and a portable light torch, found it and removed it and the device starts working again despite the front led indicator stopped working and the wifi switch has no effect anymore but thanks a lot BTW my device is lanovo g570
Awesome video mate keep up the good work subscribed
best repair channel on youtube
You're a great Teacher.
Very straight fwd. Thanks man
Always enjoyable.... Thank You
Thanks for your video, it was very helpful.
maybe can try smoke a rosin to find hot component. great video by the way. i learn so much from your channel.
that was a wonderful video, thank you.
Nice job. Got to get me one of those miniware irons.
Very useful videos you made great jobs
I also agree you need a thermal camera. Two amps could easily damage other components and create a rabbit hole of other repairs.
Well, all the amps will go through the shorted component. :) The thing that could happen if you use to much amps, the watts increase, is that the pcb can take damage when the shorted component gets really hot and might even burn up.
If the voltage is below the nominal voltage of the rail there will normally be no damage to other components. Almost all current will be shunted through the shorted component.
Gret Vid, well done and that cap won't fail again cos you didn't replace it! ;-)