I've watched a lot of repair videos from all the big guns but its one thing to do a quick video on circuit board repair but when someone goes the extra mile to explain what's really going on in the circuit as well as a lot of what if scenarios and explanations or other components and then on top of that taking the time to edit that video for even more detailed info is nothing short of " masterful" Ive always been a big fan of your channel Graham many thanks
So many TH-cam laptop repairers just fix the board and show a quick diagnostic with little explanation. They’re almost just showing off but I genuinely feel you are trying to teach people how to do this. In a world where we just throw away so much stuff this is brilliant. People need to learn how to get things working again rather than just replacing them.
Finally someone explains the entire thing of looking for a shorted component! The process along the detailed explanations are just good. My knowledge about this had too many holes and this was the perfect video. Definitely I'll save this.
Dells always power cycle 3 to 4 times once you have the bios battery/main battery disconnected. It’s essential retraining it’s self once it’s turned back on to learn what hardware is connected and the speed it runs at.
I don't think you 'waffle' at all, you teach, you may think you 'waffle' but it's mostly content we need to hear so keep on truckin' man, you're simply great to watch, your presentations are tops, many thanks for all.
These type of videos are the best. 53mins well spent. I hope to one day get into this level of repairing. It is fascinating to be able to look at a dead device, find a way to revive it using your own mind and then see with your own eyes it come back to life because of your work. There's no better feeling I think. I get great satisfaction from finding simple faults and replacing parts. Doing it on a electrical level must be an even greater feeling. It looks overwhelming every time I watch these videos. I'm always like, "lol, how am I going to be able to do all this stuff? How do I get there?" and yet despite this, I still have the desire to try and understand the basics. I want to get there. All I can do currently is find faults up to the motherboard. If there's a board/electrical fault, I have no choice but to give up because that's where my knowledge/skills end. That does get frustrating. The LFC series is great and why I primarily subscribed. The LFC series is at its best when it's videos like this: both simple and complex electrical faults that are explained clearly for the layman. I always look forward to these uploads.
I am also novice/hobbyist but I don't think it's that hard troubleshooting simple power rail faults, especially with wealth of detailed instructions from AdamantIT and other professionals who post videos on youtube. Don't need much equipment either. Just multi-meter with fine tips, a microscope/magnifying glass of some kind, soldering iron and a cheap hot air station from ebay. Of course broken electronics can get much hairier with weird intermittent issues which really takes skill and resource far beyond what's available to a layman.
OK, I'm just a very amateur repair "enthusiast" type of guy. I don't have any financial incentive to learn this stuff but it's incredibly interesting to learn and maybe, if I'm lucky, one day I'll be able to use some of this info to do something. Or, maybe that would be unlucky because I'd have a non-working lappy on my hands. Anyway, I'd like to take a moment to recognize how much effort has gone in to this video and say thanks. This isn't the most glamorous channel on TH-cam but the info is priceless. Thank you!
Completely agree with your comment(s). I am extremely unlikely to even attempt some of the repairs that Graham routinely does yet I still find it fascinating to watch and to listen to his explanations of why he uses particular tools and techniques. One of my 'goto' TH-cam channels.
Graham you are literally a lifesaver!! My Dell laptop suddenly stopped charging and Dell quoted me almost $300 to fix! I followed your methodology from this video (continuity checks/voltage injection) and found a faulty shorted MLCC with an IR camera. A hot air gun and one capacitor replacement later, the laptop was charging again. Thank you so much for this video!!
Graham, Thank you for really taking the time to go through the rails - very much appreciated, also liked the screen charts showing the route of the checks
These diagrams were an experiment, they're pretty rough in these videos, but I think I'll be trying it again in the future, either hand-drawn Big Clive Style or just _better graphics_.
@Adamant IT I agree with @Ed D. Boss about the diagrams being an improvement on already excellent content. I like particularly how you overlaid them as you addressed the real board because it helped me connect the concept and schematic to the real life board. Please do continue to include and develop your idea of using diagrams in your content. Cheers!
I'm very impressed with your videos. You're a natural teacher. I hope you're teaching a local community college (or whatever the UK equivalent is). If not, please consider it, although your work on TH-cam may have a greater impact. In my opinion, the best aspect of your style is your humility. It makes your videos more relatable. Imposter syndrome is common, even among those who are at the top of their field. Allowing others to see self-doubt is very important in my opinion. If the guy who's the teacher isn't sure, it makes it ok for everyone in the class to have doubt. Doubt is necessary for diagnostic work. Without constant self-doubt, confirmation bias will run rampant. Anyway, I've learned a lot from you. Thank you for taking the time to create these videos. Just so you don't get a big head, your soldering skills are pretty poor. That said, your vision is amazing. I'm jealous.
Just want to let you know that - this coming from someone inexperienced but not wholly ignorant of anything electronics - the detail is indeed very much appreciated. This is great for what I think is going to be most people - you have an interest and a need, and probably have access to a multimeter and iron (or can pick something up on Ebay for a few bucks), but aren't sure what you're doing and lack confidence. A lot of other content glosses over things or treats it like an engineering class with little relevance to what's going on in the machine, and loses context. This video is easy to follow, the video quality is clear (also uncommon :( ) and the explanations are complete and to the point. Actually I don't think I've seen anything quite so elegant in terms of walking through the diagnostic process, at least as someone who isn't already an expert. Easy and enjoyable just to watch, really. Now I've still got two dead Dell laptops and this is encouraging me to try to fix them. So I'll pass all the blame on to you for the results :P
Wow.. just wow... you really are one SUPER HUMBLE TEACHER. unlike other big names in this field, you have the heart to share your knowledge and explain it well so others may learn. you really care for your viewers not just to earn from them/us. This 1hr video is worth watching. You Adamant IT and sorin from Electronics repair school are really the best. Thank you.
Worst laptops I've ever had to pull apart are the Earlier Panasonic Toughbook series, just billions of plastic bits, seals and screws and the very early Toshiba A - series laptops from the '90s which had multi-layers of boards interconnected and had to go back in the right order with the right screws, nightmare. Great result and use of the Flir camera when applying low voltage, current limited injection. Appreciated the explanation of the way the power bus is connected and how the current flows through in that particular situation where the CPU and GPU are not shorted. What's in the VRM chips and why checking for a short there is important when trying to prevent damage to the CPU and GPU. Great video, loved it.
this is one of those vids that is .. GREAT! one point to mention is the limiting to 3 amps reduces the chances of burning the short out and then feeding the other components.
This makes sense. Plus also, when a component goes nuclear it has a habit of welding itself onto the board, which increases the chance of damage when removing it.
Please it wasn't waffling! this is the first video which actually made real sense, your other LFC videos are very good too but this is the best one (or one of the best), i've created a playlist for LFC - Dead Laptops which i just watch again and again till everything makes sense, thanks again and keep up the good work
I started fixing laptops recently (well, at least trying it for now - to see if i can actually do it) being quite a bit influenced by Adamant IT and the other guys who do this on youtube. i found that Graham explains all the steps quite well, and in a way that someone without much experience can understand. The last laptop i fixed had a short on the +3V and +5V rails due to a shorted capacitor. Finding this fault by yourself with the help of measuring and studying the schematics was incredibly satisfying. It took quite some time, but i think the experience i gained from it is very valuable. Thank you for your great videos.👍😊
Trying to fix some old laptops, I gave a total of 7 laptops, 3 were fixed so far. One for her husband, 2 fixed for the 2 youngest daughters, the other 4 are as payment to me. I can do what ever I want with them, after I get them fixed. Each one seems to have a different problem and your videos are helping me to figure out what is wrong with them. Thanks!!
One of the best videos you 've ever made. Excellent troubleshooting and the way you approach the problem. The video was so descriptive, explanatory, fully educational and you covered almost all the theory of laptop's circuitry repairing. Well done mate!!
Between yourself and Lewis rossman I've learnt so much to the point I've bought a couple of cheap broken ps4 controllers I'm hoping to try to fix them Never apologise for waffling the more you waffle the more you teach thank you for inspiring me to learn to fix things and also for the confidence to work on my pc
I watch all over the world people fixing electronic but you my friend I take my hat off and why you explain so much better than others keep up the good work tu a million
I know this is an older vid, but I just caught up with your stuff and you're the best teacher of this subject, on TH-cam, I've found thus far. It's one thing to show, but leagues more to explain in a way regular folks can understand. I'm a retired teacher. Thank you!
This has been the absolute best electronic training video I have ever watched and I went through military electronic training years ago. Well done Graham!
Wow, this is probably your best video. Took me more than 2 hours of taking notes and paying attention to detail. It was great. I'm watching all your a repair basics and you have the best explanations you could ask for. Plus you are very entertaining and make nice funny jokes 😂 I can't thank you enough for all this work, it's helping me a lot finally finding a way through all of these, as I was pretty lost.
"and when I plug the charger in, pwengk?!.." hahaha.. as a non-chip-level technician, I really enjoy this 1hr long video of yours.. and I really want to be a chip-level tech in the future, just need to save money for right tools and equipment.. thanks!
Hi Graham. Had some bad pots in my bass amp, and watching some of your repairs gave me the confidence to change them myself. Thanks man, you saved me some $ on a DIY fix.
Its a sheer delight to watch you present your repairs. You are a wonderful person and your sense of humor is proof of it. Lol...Wishing you and yours the very best ever. Take care and good luck in all your endeavors. Cheers. Love. 😊 👍
Thanks for the great video! One of your best produced yet. This video elegantly demonstrated the basic skillset required in general laptop repair and showed the process in a stepwise and logical manner. From visual inspection, continuity/ohm testing, voltage injection, FLIR imaging to the repair itself. You covered a broad range of topics that to a complete beginner will benefit watching your Basics playlist. Great job! Liked and added to my Favorites. PS Congratulations on graduating from the Touchy Feely Method! Hoping to own a thermal cam someday.
Ik have to respect the patience you have. I always inject 1V right after the current-sensor resistor and see if capacitors get hot before checking anything else :)
Great detailed video, please keep doing videos like this as the extra detail and explanations are what makes my old brain cells learn. Thank you for taking the time to go the extra mile 👍
Excellent. As you said you may not be the top repair guy out there but you have them all beat when it comes to taking your time and explaining things in plain UK English. That was one of your best videos. 👍
I bought this same laptop several years ago and gave it to my cousin. I recently did a repast on it and it was a bit of a challenge. It does have a long power cycle and it shuts down a few times when you do a teardown. The newer Gaming laptops from Dell don't have this design anymore and are a little easier to open. Great video, will save it for future reference.
Great channel! You really know how to pass knowledge to people who want to learn! I am really gonna enjoy all the other videos on this channel! Cheers !
Hi there , just i wanted to say thankyou for your tutorial video , thankyou for zoom in to the motherboard and allow us to see with more details , it was very good idea that you put chart or diagram on the screen ,thankyou for your simple & easy explanation. and thankyou again that you explain a lots of things during fix the laptop for beginners . thnx
Your explanation and procedures are very well put out. I'm always enjoying watching your TH-cam videos, the way you explain things is extremely clear even here in the states. I rank you as one of the highest technical explainers on TH-cam. Have you ever thought of streaming with your subscribers like video chatting so you can help someone at home that has similar equipment to fix their laptop? I know other TH-cam Content providers used to do that.
Sadly I'm not experienced enough to be able to judge a board that isn't right in front of me. I've got a project on the back-burner for a "learn to solder" live stream though, to help people pick up an iron and start tinkering with stuff. Bit lower-end than what you have in mind though.
@@Adamant_IT I'm sure it could be possible if the person you're video chatting has an extra camera pointing at the laptop or motherboard. You could guide the person to probe the area of Interest depending on what they get from the meter. just a thought but I do understand where you coming from starting small then working your way up to that level of teaching and helping.
Thanks Graham! That was a lot of good info with a great repair. Trying the same things lately and with mixed results but this helps a lot with your in-depth educational version of this repair. Happy I found your channel about a year ago... Since then I bought a soldering Iron (T100), Hot air station, and some other things to help me diagnose problems and of course to help me repair them. I'm getting better and better with soldering and my success-rate is going up and up with these kind of repairs and to be honest... Thanks to you. I wish I could be a Patron or help you in some other way but I'm very ill and with these repairs and builds I do I'm trying to stay alive and that works well at the moment. When... Well more if... Things get better here I'll be contributing to your channel when I can. Again thanks!
im glad i found your channel. im just getting into repair and trying to learn as much as possible, your channel has been fantastic. Keep up the good work.
Excellent video, learned a few things. Sometimes you can use the suggested or typical use/arrangement circuit or description in the datasheet for values of components. In the SY8286RAC datasheet it states to use at least a 10Uf capacitor in that portion of the circuit. Pin Name:IN, Pin#:2,3,4,5, Pin Description: Input pin, Decouple this pin to GND pin with at least 10uF ceramic cap...A lot of manufacturers and designers use the suggested circuit, if available, with slight or no modification in their own circuit, it's easier... Anyway, good troubleshooting, good video...Thank You...
when you remove battery bios (reset), power cycling is just checking all stuff connected to mainboard , takes sometimes even 6-8 times before it will boot, especially in 8th gen and up
Great job, appreciated. To actually avoid such a tail in your soldering, using a bit of flux is recommended. Also you can use a different soldering wire with a different ingredients combination (for example 50 percent tin/50 percent lead) which helps to keep melted solder to be more like mercury, thus less flux-oriented soldering in needed where already the piece has solder on it. Drawback is more time is needed to lose heat and be solid again.
Yeah, I think the only way to get rid of those tails really IS to add more flux. Most of the flux is blown away during the use of hot air. What I think I've seen most others do, is to simply add a bit more flux after the hot air but before touching up the edges with the iron. I think you need that liquid flux surrounding the soldering area to really stop the dags - I don't think there's a way around that.
Just for a note: those big caps in laptops are almost always 0805 size, 22uf and 10uf are rated at max of 25V. The greater you go with the capacity, the smaller will be max rated voltage for a given size. There are charts and tables of standards and max values on the net for the MLCCes. Just ask uncle Google. BTW, very good, deep explanations of the problems, thank you brother...
As I am watching more and more of your videos, I have to say: You are a really smart and passionate guy. I am sure, with your skill-set, you could easily "go bigger", whatever that might mean. However, I am very glad to see, that you seem to be able to make a living in your nice country-side shop. Maybe, sometime in the future, I might start a shop like that myself. However, if I ever end up in that part of England, I might stop by for a visit. Keep up the good work - really enjoyable content!
Adamant honesly amazing one again, I realy like your tutorials. You have amazing way of explaining problems. I watch all without skiing any parts. I'm glad you moved to New bigger and better shope, your shope look pro now.
The caps are on the power rail so value doesn't so much matter. Generally just replace them with the largest value on hand and don't worry about it. It's really only on the signal traces and rectified outputs that capacitance matters and where you'll find multiple caps in parallel, filtering out multiple frequencies. And for reasons of inductance they'll be close together.
Hi. One of the reasons for the multiple failed attempts at startup after the battery is disconnected may be due to the uefi implements data redundancy check, if the configuration data (the payload) is corrupted, it will drop the package and request for it again (may try multiple times), instead of just throwing a checksum error. If the integrity of the payload data cannot be verified, it will eventually display the error message (a runtime execution error, formerly the “checksum error”). Nice video.
Well,this was something.You made quality videos all the time,but this was just awsome!Very nice and thorough explanation and portable Flir is better than bare hands.
And i noticed, you have a bit of "ghosting" on that FLIR, you can calibrate it in options (If it works like on integrated FLIR in CAT, within that calibration, you take a picture of your hand in front of you and you can "move" flir picture to actually calibrate it.)
Nice guide. I will mention that hand-soldering MLCCs is best avoided as it tends to cause stress fractures which can be filled in via silver migration and thus cause new shorts. Stress fractures are why MLCCs are so much less reliable than their through-hole counterparts. You can get automotive grade types that are much less susceptible to this, if at a size and price premium.
Thank you so much for taking the time to make such a detailed video ! I've never done anything like it and all the step by step explanation resulted in me fixing my laptop 😁
Well done Graham, I know jack shit about this but I have a huge interest in it. I would have liked to have started younger but I am now 70 buying lots of equipment and having a ball, I love all of your videos they help me a lot, big thanks from Ireland.
Superbly educational video, well done. You can add a cheap CO2 laser focusing lens (50mm focal length is good) to your thermal camera for a MUCH closer view. You'd be able to see close enough to identify the exact capacitor on camera!
the flir cam is ok but the seek cameras are generally much better for electronics repair due to the focusing capability and the option to add a macro lens mod
what one would you recommend. I have a flir handheld one i bought for about £500 and while it's good I find it needs more of a resolution to identify the components
@@Pulsebass personally I have the seek compact pro and i think it's hard to beat for the price. Resolution is much higher than the equivalent flir and you can add a macro lens mod which makes it able to focus on even the smallest components. It's the camera of choice for many people doing phone repair, like ipad rehab, so that should tell you how good it can be for working with small components
i don't mind with the duration, Graham. in fact, i really enjoy every minutes of your explanation here, very informative. about hot tweezers, i think you already have a decent one as i recall, just use both of your TS100 and Pinecil to melt it at once, one for each side. 😉
I don't understand electronic terminology regarding capacitors, resistors, MOSFETs, etc etc, But I've always found it very fascinating, and would like to learn more about how to identify, diagnose, and understand how the different components on a board work. Is there any resource you could recommend that I study? My goal is to be able to understand electronics enough to be able to diagnose, and repair electrical issues on boards.
Really great video, i normally watch your stuff as catharsis since we do basically the same job. But i learned loads from this that i didnt fully understand, great job!
I've watched a lot of repair videos from all the big guns but its one thing to do a quick video on circuit board repair but when someone goes the extra mile to explain what's really going on in the circuit as well as a lot of what if scenarios and explanations or other components and then on top of that taking the time to edit that video for even more detailed info is nothing short of " masterful" Ive always been a big fan of your channel Graham many thanks
well that was educational on a whole new level. Good stuff!
I am new in repairing noote book ,can i do purchase dell vostro 1720 circuit diagram from u ?
So many TH-cam laptop repairers just fix the board and show a quick diagnostic with little explanation. They’re almost just showing off but I genuinely feel you are trying to teach people how to do this. In a world where we just throw away so much stuff this is brilliant. People need to learn how to get things working again rather than just replacing them.
Finally someone explains the entire thing of looking for a shorted component! The process along the detailed explanations are just good. My knowledge about this had too many holes and this was the perfect video. Definitely I'll save this.
Dells always power cycle 3 to 4 times once you have the bios battery/main battery disconnected. It’s essential retraining it’s self once it’s turned back on to learn what hardware is connected and the speed it runs at.
Perhaps it's because Dell is garbage.
I don't think you 'waffle' at all, you teach, you may think you 'waffle' but it's mostly content we need to hear so keep on truckin' man, you're simply great to watch, your presentations are tops, many thanks for all.
These type of videos are the best. 53mins well spent. I hope to one day get into this level of repairing. It is fascinating to be able to look at a dead device, find a way to revive it using your own mind and then see with your own eyes it come back to life because of your work. There's no better feeling I think. I get great satisfaction from finding simple faults and replacing parts. Doing it on a electrical level must be an even greater feeling.
It looks overwhelming every time I watch these videos. I'm always like, "lol, how am I going to be able to do all this stuff? How do I get there?" and yet despite this, I still have the desire to try and understand the basics. I want to get there.
All I can do currently is find faults up to the motherboard. If there's a board/electrical fault, I have no choice but to give up because that's where my knowledge/skills end. That does get frustrating.
The LFC series is great and why I primarily subscribed. The LFC series is at its best when it's videos like this: both simple and complex electrical faults that are explained clearly for the layman. I always look forward to these uploads.
I am also novice/hobbyist but I don't think it's that hard troubleshooting simple power rail faults, especially with wealth of detailed instructions from AdamantIT and other professionals who post videos on youtube. Don't need much equipment either. Just multi-meter with fine tips, a microscope/magnifying glass of some kind, soldering iron and a cheap hot air station from ebay. Of course broken electronics can get much hairier with weird intermittent issues which really takes skill and resource far beyond what's available to a layman.
OK, I'm just a very amateur repair "enthusiast" type of guy. I don't have any financial incentive to learn this stuff but it's incredibly interesting to learn and maybe, if I'm lucky, one day I'll be able to use some of this info to do something. Or, maybe that would be unlucky because I'd have a non-working lappy on my hands. Anyway, I'd like to take a moment to recognize how much effort has gone in to this video and say thanks. This isn't the most glamorous channel on TH-cam but the info is priceless. Thank you!
I wish you good luck in your endeavors. The best. 😊 👍
Completely agree with your comment(s). I am extremely unlikely to even attempt some of the repairs that Graham routinely does yet I still find it fascinating to watch and to listen to his explanations of why he uses particular tools and techniques. One of my 'goto' TH-cam channels.
Graham you are literally a lifesaver!! My Dell laptop suddenly stopped charging and Dell quoted me almost $300 to fix! I followed your methodology from this video (continuity checks/voltage injection) and found a faulty shorted MLCC with an IR camera. A hot air gun and one capacitor replacement later, the laptop was charging again. Thank you so much for this video!!
To those who are interested in electricals, Content from you are place of zen. Thank you sir.
Graham, Thank you for really taking the time to go through the rails - very much appreciated, also liked the screen charts showing the route of the checks
Same as ^ been watching lots on this type of content and can hand on heart say I learnt something new in this video.
These diagrams were an experiment, they're pretty rough in these videos, but I think I'll be trying it again in the future, either hand-drawn Big Clive Style or just _better graphics_.
@@Adamant_IT hand drawn, aka Dave Cad ? :)
@Adamant IT I agree with @Ed D. Boss about the diagrams being an improvement on already excellent content. I like particularly how you overlaid them as you addressed the real board because it helped me connect the concept and schematic to the real life board. Please do continue to include and develop your idea of using diagrams in your content. Cheers!
I'm very impressed with your videos. You're a natural teacher. I hope you're teaching a local community college (or whatever the UK equivalent is). If not, please consider it, although your work on TH-cam may have a greater impact. In my opinion, the best aspect of your style is your humility. It makes your videos more relatable. Imposter syndrome is common, even among those who are at the top of their field. Allowing others to see self-doubt is very important in my opinion. If the guy who's the teacher isn't sure, it makes it ok for everyone in the class to have doubt. Doubt is necessary for diagnostic work. Without constant self-doubt, confirmation bias will run rampant. Anyway, I've learned a lot from you. Thank you for taking the time to create these videos. Just so you don't get a big head, your soldering skills are pretty poor. That said, your vision is amazing. I'm jealous.
Just want to let you know that - this coming from someone inexperienced but not wholly ignorant of anything electronics - the detail is indeed very much appreciated. This is great for what I think is going to be most people - you have an interest and a need, and probably have access to a multimeter and iron (or can pick something up on Ebay for a few bucks), but aren't sure what you're doing and lack confidence. A lot of other content glosses over things or treats it like an engineering class with little relevance to what's going on in the machine, and loses context. This video is easy to follow, the video quality is clear (also uncommon :( ) and the explanations are complete and to the point. Actually I don't think I've seen anything quite so elegant in terms of walking through the diagnostic process, at least as someone who isn't already an expert. Easy and enjoyable just to watch, really.
Now I've still got two dead Dell laptops and this is encouraging me to try to fix them. So I'll pass all the blame on to you for the results :P
Wow.. just wow... you really are one SUPER HUMBLE TEACHER. unlike other big names in this field, you have the heart to share your knowledge and explain it well so others may learn. you really care for your viewers not just to earn from them/us. This 1hr video is worth watching. You Adamant IT and sorin from Electronics repair school are really the best. Thank you.
Worst laptops I've ever had to pull apart are the Earlier Panasonic Toughbook series, just billions of plastic bits, seals and screws and the very early Toshiba A - series laptops from the '90s which had multi-layers of boards interconnected and had to go back in the right order with the right screws, nightmare. Great result and use of the Flir camera when applying low voltage, current limited injection. Appreciated the explanation of the way the power bus is connected and how the current flows through in that particular situation where the CPU and GPU are not shorted. What's in the VRM chips and why checking for a short there is important when trying to prevent damage to the CPU and GPU. Great video, loved it.
this is one of those vids that is .. GREAT!
one point to mention is the limiting to 3 amps reduces the chances of burning the short out and then feeding the other components.
This makes sense. Plus also, when a component goes nuclear it has a habit of welding itself onto the board, which increases the chance of damage when removing it.
Please it wasn't waffling! this is the first video which actually made real sense, your other LFC videos are very good too but this is the best one (or one of the best), i've created a playlist for LFC - Dead Laptops which i just watch again and again till everything makes sense, thanks again and keep up the good work
I started fixing laptops recently (well, at least trying it for now - to see if i can actually do it) being quite a bit influenced by Adamant IT and the other guys who do this on youtube.
i found that Graham explains all the steps quite well, and in a way that someone without much experience can understand.
The last laptop i fixed had a short on the +3V and +5V rails due to a shorted capacitor.
Finding this fault by yourself with the help of measuring and studying the schematics was incredibly satisfying.
It took quite some time, but i think the experience i gained from it is very valuable.
Thank you for your great videos.👍😊
Trying to fix some old laptops, I gave a total of 7 laptops, 3 were fixed so far. One for her husband, 2 fixed for the 2 youngest daughters, the other 4 are as payment to me. I can do what ever I want with them, after I get them fixed. Each one seems to have a different problem and your videos are helping me to figure out what is wrong with them. Thanks!!
One of the best videos you 've ever made. Excellent troubleshooting and the way you approach the problem. The video was so descriptive, explanatory, fully educational and you covered almost all the theory of laptop's circuitry repairing. Well done mate!!
Between yourself and Lewis rossman I've learnt so much to the point I've bought a couple of cheap broken ps4 controllers I'm hoping to try to fix them
Never apologise for waffling the more you waffle the more you teach thank you for inspiring me to learn to fix things and also for the confidence to work on my pc
I watch all over the world people fixing electronic but you my friend I take my hat off and why you explain so much better than others keep up the good work tu a million
I know this is an older vid, but I just caught up with your stuff and you're the best teacher of this subject, on TH-cam, I've found thus far. It's one thing to show, but leagues more to explain in a way regular folks can understand. I'm a retired teacher. Thank you!
You and Faldstad are my two favourite electronics teachers!
This has been the absolute best electronic training video I have ever watched and I went through military electronic training years ago. Well done Graham!
Wow, this is probably your best video. Took me more than 2 hours of taking notes and paying attention to detail.
It was great. I'm watching all your a repair basics and you have the best explanations you could ask for.
Plus you are very entertaining and make nice funny jokes 😂
I can't thank you enough for all this work, it's helping me a lot finally finding a way through all of these, as I was pretty lost.
"and when I plug the charger in, pwengk?!.." hahaha.. as a non-chip-level technician, I really enjoy this 1hr long video of yours.. and I really want to be a chip-level tech in the future, just need to save money for right tools and equipment.. thanks!
The best videos on laptop repair i've Seen on TH-cam sofar.
Hi Graham. Had some bad pots in my bass amp, and watching some of your repairs gave me the confidence to change them myself. Thanks man, you saved me some $ on a DIY fix.
My new favourite channel on TH-cam. I've learnt so much. Huge thanks
I really enjoy such longer Videos and your explanations along the way! Always very interesting!
This just proves how true this old saying is:
If you dont know what the fault is, its certainly a capacitor.
Its a sheer delight to watch you present your repairs. You are a wonderful person and your sense of humor is proof of it. Lol...Wishing you and yours the very best ever. Take care and good luck in all your endeavors. Cheers. Love. 😊 👍
You are very good at your profession and at explaining complex problems. Thank you.
Thanks for the great video! One of your best produced yet.
This video elegantly demonstrated the basic skillset required in general laptop repair and showed the process in a stepwise and logical manner. From visual inspection, continuity/ohm testing, voltage injection, FLIR imaging to the repair itself. You covered a broad range of topics that to a complete beginner will benefit watching your Basics playlist.
Great job! Liked and added to my Favorites.
PS
Congratulations on graduating from the Touchy Feely Method! Hoping to own a thermal cam someday.
53min Let's Fix Computers video.. Oh, yes! Let me get the popcorn!
I highly appreciate the presentation. It is very informative, entertaining, educational. Worth the 1HR time watching.
THANK YOU!
Really love these hardware repair videos !! You're extremely clear in explanations, and there's always a lot to learn :)
That was rad. Loved going down the rabbit hole with you. That was a nail biter at the end! What a cool video.
Ik have to respect the patience you have. I always inject 1V right after the current-sensor resistor and see if capacitors get hot before checking anything else :)
Great detailed video, please keep doing videos like this as the extra detail and explanations are what makes my old brain cells learn. Thank you for taking the time to go the extra mile 👍
Excellent. As you said you may not be the top repair guy out there but you have them all beat when it comes to taking your time and explaining things in plain UK English.
That was one of your best videos. 👍
I can not put in a short line how much I learned from this video.. Well Done my friend Well Done !! BRAVO !!!
the rail diagrams were a really nice touch especially because im a electrical engineering student its cool to see
I bought this same laptop several years ago and gave it to my cousin. I recently did a repast on it and it was a bit of a challenge. It does have a long power cycle and it shuts down a few times when you do a teardown. The newer Gaming laptops from Dell don't have this design anymore and are a little easier to open. Great video, will save it for future reference.
Great channel! You really know how to pass knowledge to people who want to learn! I am really gonna enjoy all the other videos on this channel! Cheers !
Definitely better than the short version. LOVE IT
I love your explanation of short circuits.
Hi there , just i wanted to say thankyou for your tutorial video , thankyou for zoom in to the motherboard and allow us to see with more details , it was very good idea that you put chart or diagram on the screen ,thankyou for your simple & easy explanation. and thankyou again that you explain a lots of things during fix the laptop for beginners . thnx
Your explanation and procedures are very well put out. I'm always enjoying watching your TH-cam videos, the way you explain things is extremely clear even here in the states. I rank you as one of the highest technical explainers on TH-cam. Have you ever thought of streaming with your subscribers like video chatting so you can help someone at home that has similar equipment to fix their laptop? I know other TH-cam
Content providers used to do that.
Sadly I'm not experienced enough to be able to judge a board that isn't right in front of me.
I've got a project on the back-burner for a "learn to solder" live stream though, to help people pick up an iron and start tinkering with stuff. Bit lower-end than what you have in mind though.
@@Adamant_IT I'm sure it could be possible if the person you're video chatting has an extra camera pointing at the laptop or motherboard. You could guide the person to probe the area of Interest depending on what they get from the meter. just a thought but I do understand where you coming from starting small then working your way up to that level of teaching and helping.
Thanks Graham! That was a lot of good info with a great repair.
Trying the same things lately and with mixed results but this helps a lot with your in-depth educational version of this repair.
Happy I found your channel about a year ago... Since then I bought a soldering Iron (T100), Hot air station, and some other things to help me diagnose problems and of course to help me repair them.
I'm getting better and better with soldering and my success-rate is going up and up with these kind of repairs and to be honest... Thanks to you.
I wish I could be a Patron or help you in some other way but I'm very ill and with these repairs and builds I do I'm trying to stay alive and that works well at the moment.
When... Well more if... Things get better here I'll be contributing to your channel when I can.
Again thanks!
ami place la nebunie parte teoretica pe care o explici si o pui in practica . foarte putini fac lucrul acesta . love u
Super super super educational video. The drawings on top, to recap the situation, are very helpful. This video is one notch up with the quality!
I am in awe of your knowledge and capability to fix this computer. Truly excellent, many thanks for the video.
That FLIR camera really helped. No wonder everyone was bugging you about getting one.
i got old CAT 60 phone it has termal camera and got it for realy cheap :)
im glad i found your channel. im just getting into repair and trying to learn as much as possible, your channel has been fantastic. Keep up the good work.
Excellent video, learned a few things. Sometimes you can use the suggested or typical use/arrangement circuit or description in the datasheet for values of components. In the SY8286RAC datasheet it states to use at least a 10Uf capacitor in that portion of the circuit. Pin Name:IN, Pin#:2,3,4,5, Pin Description: Input pin, Decouple this pin to GND pin with at least 10uF ceramic cap...A lot of manufacturers and designers use the suggested circuit, if available, with slight or no modification in their own circuit, it's easier... Anyway, good troubleshooting, good video...Thank You...
Best laptop repair video seen
Explanation is awesome
when you remove battery bios (reset), power cycling is just checking all stuff connected to mainboard , takes sometimes even 6-8 times before it will boot, especially in 8th gen and up
Great job, appreciated. To actually avoid such a tail in your soldering, using a bit of flux is recommended. Also you can use a different soldering wire with a different ingredients combination (for example 50 percent tin/50 percent lead) which helps to keep melted solder to be more like mercury, thus less flux-oriented soldering in needed where already the piece has solder on it. Drawback is more time is needed to lose heat and be solid again.
Yeah, I think the only way to get rid of those tails really IS to add more flux. Most of the flux is blown away during the use of hot air. What I think I've seen most others do, is to simply add a bit more flux after the hot air but before touching up the edges with the iron. I think you need that liquid flux surrounding the soldering area to really stop the dags - I don't think there's a way around that.
Just for a note: those big caps in laptops are almost always 0805 size, 22uf and 10uf are rated at max of 25V. The greater you go with the capacity, the smaller will be max rated voltage for a given size. There are charts and tables of standards and max values on the net for the MLCCes. Just ask uncle Google. BTW, very good, deep explanations of the problems, thank you brother...
As I am watching more and more of your videos, I have to say: You are a really smart and passionate guy. I am sure, with your skill-set, you could easily "go bigger", whatever that might mean. However, I am very glad to see, that you seem to be able to make a living in your nice country-side shop. Maybe, sometime in the future, I might start a shop like that myself. However, if I ever end up in that part of England, I might stop by for a visit. Keep up the good work - really enjoyable content!
It shows what a powerful tool the thermal camera is.
It clearly showed the short immediately where you wouldn't have felt it.
Good God man! The amount of useful information packed into this video was amazing! Great job!
Adamant honesly amazing one again, I realy like your tutorials. You have amazing way of explaining problems. I watch all without skiing any parts. I'm glad you moved to New bigger and better shope, your shope look pro now.
top notch video ! great explaining, great practical insight. outstanding.
The caps are on the power rail so value doesn't so much matter. Generally just replace them with the largest value on hand and don't worry about it. It's really only on the signal traces and rectified outputs that capacitance matters and where you'll find multiple caps in parallel, filtering out multiple frequencies. And for reasons of inductance they'll be close together.
Cheers Graham ... Good Vid with all needed explanations of what does what ... Top Job Appreciated
The thermal camera was cool for us to see, because now we could see what you could feel before.
Hi. One of the reasons for the multiple failed attempts at startup after the battery is disconnected may be due to the uefi implements data redundancy check, if the configuration data (the payload) is corrupted, it will drop the package and request for it again (may try multiple times), instead of just throwing a checksum error. If the integrity of the payload data cannot be verified, it will eventually display the error message (a runtime execution error, formerly the “checksum error”). Nice video.
Very good video sir. I enjoy your format. Very informative at a proper pace.
Well,this was something.You made quality videos all the time,but this was just awsome!Very nice and thorough explanation and portable Flir is better than bare hands.
Graham these diagrams are brilliant please try to include them in every video if you can.
11:51 V=IR so the 0.005 ohm resistor will drop approx 50mV at maximum rated input current.
Great explanation of how a capacitor and resistance works. Haven't heard this yet on any other channel. Excellent work!
And i noticed, you have a bit of "ghosting" on that FLIR, you can calibrate it in options (If it works like on integrated FLIR in CAT, within that calibration, you take a picture of your hand in front of you and you can "move" flir picture to actually calibrate it.)
Nice guide. I will mention that hand-soldering MLCCs is best avoided as it tends to cause stress fractures which can be filled in via silver migration and thus cause new shorts. Stress fractures are why MLCCs are so much less reliable than their through-hole counterparts. You can get automotive grade types that are much less susceptible to this, if at a size and price premium.
Interesting stuff... does that include hot-air, or are you revering to how I touched up the joins with an iron afterwards?
Thank you so much for taking the time to make such a detailed video ! I've never done anything like it and all the step by step explanation resulted in me fixing my laptop 😁
Amazing guy.
Clear enjoyable and informative.
Lovely show and good channel
best video out here on laptop repair
Thank you for this well explained video ! You have a gift of explain something in a understandable way.
Well done Graham, I know jack shit about this but I have a huge interest in it. I would have liked to have started younger but I am now 70 buying lots of equipment and having a ball, I love all of your videos they help me a lot, big thanks from Ireland.
Superbly educational video, well done.
You can add a cheap CO2 laser focusing lens (50mm focal length is good) to your thermal camera for a MUCH closer view. You'd be able to see close enough to identify the exact capacitor on camera!
This sounds very interesting - I'll look into it!
Loved the video Adam, was the pun intended, 'Delt with a Dell'
This sort of videos are the reason a follow you, i learn so much every time. Thank you for splendid explanations as always. Cheers
just loved every explanation. thanks alot man. and the DMM is very nice at every scale.
I love your channel learning some repair skills and nearby improve my english knowledge. Thanks a lot!
I really wish I had the skills to do board repairs. Great job.
Best laptop power circuit ever .
the flir cam is ok but the seek cameras are generally much better for electronics repair due to the focusing capability and the option to add a macro lens mod
what one would you recommend. I have a flir handheld one i bought for about £500 and while it's good I find it needs more of a resolution to identify the components
@@Pulsebass personally I have the seek compact pro and i think it's hard to beat for the price. Resolution is much higher than the equivalent flir and you can add a macro lens mod which makes it able to focus on even the smallest components. It's the camera of choice for many people doing phone repair, like ipad rehab, so that should tell you how good it can be for working with small components
Awweeeeesome fix! Loved the diagrams and explanation of your process.
Hi Graham, please could you do a toolbox tour video at some point? What multimeter, microscope, tools you use etc? Would love to see that!
It's in the queue, but waiting for me to get some other shop-tour videos done!
i don't mind with the duration, Graham. in fact, i really enjoy every minutes of your explanation here, very informative. about hot tweezers, i think you already have a decent one as i recall, just use both of your TS100 and Pinecil to melt it at once, one for each side. 😉
Great video repair , thanks for taking the time to explain everything to the very detail. Liked the testing procedure near the vrms!!!
I don't understand electronic terminology regarding capacitors, resistors, MOSFETs, etc etc,
But
I've always found it very fascinating, and would like to learn more about how to identify, diagnose, and understand how the different components on a board work.
Is there any resource you could recommend that I study?
My goal is to be able to understand electronics enough to be able to diagnose, and repair electrical issues on boards.
i'm liking this type of videos , veeeeery informative for begginers ♥ thank you
Great video and really professional overlay of circuits good job graham
Really great video, i normally watch your stuff as catharsis since we do basically the same job. But i learned loads from this that i didnt fully understand, great job!
Nice demonstration with the flir cam much better than the alcohol method
As always entertaining. Thanks from Australia