I am studying Computer technician in my country and I'm learning a lot from this guy! He shows a lot of techniques in identifying common issues and some I haven't encountered yet. I gain a lot of wisdom and knowledge by simply watching his videos. Kudos to you sir!
I've been doing electronics work since I was a kid going with my dad to his TV repair shop, spent 20 years in the military as a radio tech, and am now nearly finished with two associates degrees in electronics/electro-mechanical systems, and I learn something new EVERY TIME I watch one of your videos. Love your work and channel my friend! Nice work.
WTF? u work 20years with electronic and have two degree, but u did not know what knew somebody with BASIC electronic knowing? Did u sleep all your work and two degrees?
the amount of calls coming from the customer being so vague about their laptops, imagine the amount of work he takes a day lol. genuinely love this type of work
This guy really knows what he is doing.Unlike other guys on yt that do it by trial and error ,or some others that already tested the device before making the vid and knew the issue but are acting like they didnt. Keep up the good work, I am learning a lot from you.
This was hands down the most informative, clear, understandable tutori for throunleshooting motherboard issues. Thank you so very much sir, you do awesome work!
Thank you for your very clear explanations where you talk to people like they don't know anything and you repeat the concept a few times so they "get it." Some people teach like the student knows what they know, and it's hard to follow. I have fixed analog electronics in the past but this video really gave me a much clearer understanding of how to go about it on these digital laptop circuits with these microscopic surface mount components!
To Be honest I must have watched over 150 Videos of yours Alex and this one is actually one of the best of all. It goes into a lot of practical detail around the physics of how Mosfets actually behave in real time and what different voltages are meant to be reading and what happens if not what is expected. I had to stop, go Back and write all of these gems down with some drawings of Mosfet pinouts so that I will never forget it. Fantastic job as always. Love ya work mate! - LEGEND!
good day alex thank you for adding words on the screen when you are repairing a device,my son kyrian venter is deaf and he cant hear,so now its much better for him to follow your prestine work,thank you for that we are from south africa in cape town strandfontein,we watched all you videos so far and gained alot of knowledge from you,we appriciate the effort you put in to this channel,a shout out from me arrie and kyrian from cape town south africa
Nice guess on the bad capacitor! It looked a little bit de-laminated, but hardly discernible even with a microscope. You could have replaced it with a 10nF capacitor, just to provide some local noise filtering. It is a conservative value, as 100nF is a typical value for those.
HELLO NORTH! Am an avid Subscriber, you are my first 'Go to' when diagnosing PC issues! I recently built a new Computer in my old Tower with a new Raidmax Vampire 1000W 80 Plus Gold Power Supply, an MSI Z390-A PRO Motherboard with an Intel Pentium Gold Processor G5400 CPU @ 3.7GHz! Next added 64.0 GB DDR4 3200 Ram! Also a ZOTAC GAMING GeForce GTX 1 Video Card! Recently upgraded all my HHD's with an Intel 660p Series M.2 1 TB SSD Drive C and two WD I TB internal SSD's! My Computer now boots up completely for a cold start in 30 seconds!!!! (Once in a while when I turn it on, it Boots into the Bios Screen)!!!(But when I wont to boot into Bios, no matter what key combination I press it wont go into Bios on Command)! Windows will not display on my Digital Monitor but I can see the Bios Screen on another HDMI Output to my 32 inch TV! Am running XMP Mode and Gaming Mode on the MSI along with allocating 3/4 of my Ram to Process my Adobe Premiere 2022! My Question is: How do I get the computer to Boot into Windows EVERY TIME? And secondly, How do I get my computer to boot into Bios on command?
Very very helpful video. I found the schematics of my laptop (ACER) on Internet for 5$. 1 diode and 2 capacitors in short ... now repaired. Thks a lot.
Awesome. Your videos are short and brief, whilst containing the crucial skills and knowledge in pinpointing the exact issue and solving it. I've learnt alot in such a short time in comparison to other 1 hour long videos from other uploaders. Because of that, I've subscribed.
Today I just got luck to visit your video, video was good. I haven't watched the way you have explained over the youtube. Something very correctly understandable. I think your explanation way will definitely make me to watch your all videos. Keep it up. It's all new to me. Thanks
I actually have that electricity feeder. Just short one flir Camara got the whole kit to start fixing again, your videos are a great refresh update on new methods
Thanks so much for the explanations! Had my laptop fixed at a local shop and having no knowledge about circuits I was dumbfounded with his lecture about mosfets and capacitors... This video really helped me understand. Thank you!
@@NorthridgeFix Sir... I have a question and I really need your answer based on your experience. I was using my netbook for about 5 minutes after that it suddenly turning off and smoke coming out of the charging port, I immediately unplugged the adapter from the netbook. After that, I waited 1 hour and tried plugging the adapter back just to see if the charging port indicator light is still on and yes it's still on but I'm afraid to turn on the netbook. my question is... does my netbook still have a chance that there will be no serious damage to its components or not?? sorry about my english ...
That was such a neat piece of work, you remind me of my computer maintenance teacher, he's so genious like you. Thank you for sharing your experiences.
Great job. By seeing this video I have fixed my college Asus laptop which was not turning On even with battery or charger. I just removed one tiny mosfet near by charging port. I found that surrounded area capacitors shows short to ground. Once I removed tiny mosfet then short has gone. I do not have a same mosfet so I decided to jumper its drain and source pins. After I assembled everything I checked laptop and wola it's working fine and charging too. Thanks for guiding through your videos.
@@barbara82589 I knew that if the situation happens again then possibly another mosfet would fry also and could damage further towards supply rail or power management circuitry. For that reason I have added 2 Amp smd fuse in series leading to mosfet. So in case if charger cable short again from its positive to ground or laptop draws 2 Ampare because of anything wrong with charger then 2 Amp smd fuse will below instead of whole power management circuit goes blow.
What ASUS model do you have? Seems to be a somewhat frequent ASUS problem. Mine is a Q324U. I wish they would have used a harness connector for jack component instead of solder type, easier to test and swap out for those of us without soldering skills
@@barbara82589 I'm sorry I don't remember the exact model now but I will update you after ask my colleague. But I'm not pretty sure that it's frequent problem with Asus laptops. In our case charger cable was torn and by mistake it was joined reversed polarity. Once he connected charger just after cable repair then within 2 seconds laptop shuts down by itself. Some laptops I have found small charger port PCB and some harness connects that PCB to Mainboard. So repair might be simple or requires replacement of charging port PCB only.
Your solder skills are as impressive as your diagnostics. And you take pride in your work. Thanks. Have a few “dead” old boards am going to play with but only for learning. Plus keeps me from HDL wife keeps piling on 😏
Great job as always, keep up the good work, and thanks for the thorough explanations! I am always learning alot from you and always look forward to my "daily lesson". Regards
Wow wat an explanation n I have total respect to this guy the way he explain his theory n does practical on electronics. This guy is an electronic encyclopedia
First of all, let me introduce myself. I"m Jadi from Indonesia as a Begginner PC/Laptop Technician. Btw,Thank U to share the Valuable Technical On Repaire the Laptop.
Just my 2cts : when using FLIR - do not use laptop PSU, it will shut down, use a lab PSU instead and start with 1-2 Volts, this will give you about 3 Watts of heat on your defect cap, which will show nicely on your FLIR.
@@user-ty2uz4gb7v completely short, ZERO ohm. Meter shows near about 0.23ohm. ALL laptops that I fixed with ZERO ohm caps over 1.2v, 3.3v or 5.0v lines, capacitors never warmed.
That's because laptops have all the same principal. 2 Mosfets in the input, various stepdown converters (with 2 mosfets, various capacitors, 1 inductor and a driver) and so on, they are all alike. If you want to know more about this follow "Electronics Repair School" channel, it is pretty similar to this one. @NorthridgeFix Loved this channel subscribed!
Nice informative tutorial but here is a thought: Voltage injecting 19v on a faulty board seems really dangerous. It could damage even more. Why not hooking it up to an external power supply, limit the voltage to 5v and limit the current as well. This will prevent the inrush limiter to kick in and you can still use the flir camera. What do you think?
Thanks! I have ASUS ZenBook 14 UM431 and same problem - device won't charge, won't power up. Now battery is dead and I unable to use laptop. Using your video, I seems found Capacitor witch is shorted. Now I'm waiting for air "soldering iron" to arrive to fix the capacitor or keep looking for dead IC...
I have a hp omen laptop that stopped charging a few months ago. After a month or so, it just started charging again until I took cable out. After plugging in it would just split sec go orange charge then white, no charge. After another month, same thing again. I got a brand new genuine hp 230w charger and still same thing. Bought a brand new battery. Still same thing. Bought a brand new power jack and still same. If I use my older laptop 90w charger in this gaming one, it works and charges up. Plug the original 230w and no charge. If I remove battery it won't power on, just flickers a white light every time you try powering on. Put the 90w charger in and it works without battery
This is eye opening.... I got similar problem, now i know.. not all the all the cap need to change.. If Shorted.. There is should be one cause everything..
You can inject 19V to the 19V rail w/o damaging but you MUST use a power supply with variable current limit, cranking the current slowly up. The thermo camera is a good idea if you have it, otherwise use your fingertip carefully not to burn yourself. Using serial connected 24V or 2x12V automotive light bulbs for current limit is a cheap solution if you do not have a power supply with variable current control. The bulbs can be 15W, 25W, 45W 55W depending on the desired current.
that´s what i do,i'm just a small time hobbyist. edit: besides monitoring the Amps thru a second multimeter,on Amps, they can also be *seen* on the more or less brightness of the bulbs, from 5W or less to 45W
12:06 does it matter that those three legs are bridged with solder? Those three are Source. I’m a noob to embedded electronics but is it ok that since they’re all Source they can be bridged with Solder?
Excellent video!! I have an ASUS A53E that is not charging or powering with its charger, but I disconnect the charger and insert the battery it turns on the orange leg (charger) as if charger is connected when actually it is not and only turns on with battery. How could I start diagnosis in this case? It doesn't seem charger related but some short with the battery or something like that. I already replaced the battery and keyboard (it was previously shutting down the laptop and has some bad keys).
Great video! While I've been building PCs for 20+ years, I have no experience in electronic repairs, what are you applying at 4:40? Flux? Heat absorbing gel? Would an ESR meter not help in finding the faulty cap?
Thanks for the information In my own case I was working with my Asus and as soon I plug in my PC game pad to play games for relaxation after working on Archicad and closing for some hours, it just went of instantly as the usb is pluged, including charging indicator and other lights I have removed the battery and held the power button for 1-2 mins to see rest by discharging any power on board, the tried powering back but not positive result
Awesome. I'm the meanwhile, here in Canada...trying to figure out how to figure out the power supply button on Lenovo g580. Currently it's being powered on by simply plugging the adapter only.
I can learn a somethng here. This not 100% can be work for all laptop. Which mean, it can be different for another laptops case but I understand every what his said and we need to check every parts with the multitester. The conclusion is, check the shortage, if components is a different than usual from another for the same type like hotter, no power or discolored, mean that was the suspect. We need to remove or replace it then plug back the power source then see how it goes. Thank you for sharing :)
Very intuitive diagnosing protocol. Impressive. I, too, have a Asus rog gl552vw with puzzling symptoms: - when power connected, the front light for power and battery charge are on but it doesn't boot - if only on battery, no lights on, no boot - when I leave it, plugged or not, the area on the left of the pad becomes quite hot until I remove the power cord and the battery... Any idea, somebody ?... Thank you
So if you touch caps with the red probe and put the black probe on something metal, and the multimeter beeps on the continuity test (one that beeps on mine), that means what the red probe touched is shorted to ground (which is bad)? There should be no beeps at all? Am I understanding that correctly? I'm new to this. I want to learn as I love fixing things (only do basic stuff right now, like fix software problems and open stuff up and replace parts). I want to slowly get into these sort of repairs.
You prob know that electricity is the movement of electrons but what motivates the electrons to move is "showing" them a path to some atoms that are willing to take in electrons and ground are full of those atoms. So when we say something is "shorted to ground" that means there is a short path to ground so electricity WILL prefer to take that path instead cause it's a shorter path and most of the time offers no resistance. So having a short to ground means electricity will not take the path it is intended to take and you can test that by using the continuity mode or diode mode in your multimeter to check if a path to ground is being made. Continuity mode just checks if both probes of the multimeter is connected to each other, if they are indeed connected the meter will beep, so if you put your black prob to anything that is "grounded" and the red probe to any component lead it will beep IF that component is connected to ground; I'm still learning as well and i'm not sure which components are supposed to connect to ground, all i know is that every capacitor should have one lead connected to ground and the other lead should not, so if you do this test to a capacitor and both sides of the capacitor causes a beep that means the power line that passes through that capacitor is shorted to ground and you have to look for which component is actually causing the short. I hope this clears somethings up and keep on learning!
The cap is closed off from ground and should have no direct path from the input lead to the output. It will only pass AC. Some caps have a metal casing which should also be insulated from the inside of the cap.
Great explanation! I wonder which liquid you use to desolder those smd mosfets? My heater would be at 330 degree and the fan on level 2 but not pleased.
WOW. for the first time I have seen someone doing theory nicely and getting people to understand what is happening as he does the practical.
1Q
Yeah first time indeed
@@funnelcreations さし
Wow
apparently you don't know other channels like this one
I am studying Computer technician in my country and I'm learning a lot from this guy! He shows a lot of techniques in identifying common issues and some I haven't encountered yet. I gain a lot of wisdom and knowledge by simply watching his videos. Kudos to you sir!
I've been doing electronics work since I was a kid going with my dad to his TV repair shop, spent 20 years in the military as a radio tech, and am now nearly finished with two associates degrees in electronics/electro-mechanical systems, and I learn something new EVERY TIME I watch one of your videos. Love your work and channel my friend!
Nice work.
WTF? u work 20years with electronic and have two degree, but u did not know what knew somebody with BASIC electronic knowing?
Did u sleep all your work and two degrees?
@@danielsatko You must be real fun at parties.
@@AmadonFaul not as funny as u 🤣
Thanks 🙏🏻
Same since I was 3 yo.
the amount of calls coming from the customer being so vague about their laptops, imagine the amount of work he takes a day lol. genuinely love this type of work
This guy really knows what he is doing.Unlike other guys on yt that do it by trial and error ,or some others that already tested the device before making the vid and knew the issue but are acting like they didnt. Keep up the good work, I am learning a lot from you.
This was hands down the most informative, clear, understandable tutori for throunleshooting motherboard issues. Thank you so very much sir, you do awesome work!
Thank you for your very clear explanations where you talk to people like they don't know anything and you repeat the concept a few times so they "get it." Some people teach like the student knows what they know, and it's hard to follow. I have fixed analog electronics in the past but this video really gave me a much clearer understanding of how to go about it on these digital laptop circuits with these microscopic surface mount components!
To Be honest I must have watched over 150 Videos of yours Alex and this one is actually one of the best of all. It goes into a lot of practical detail around the physics of how Mosfets actually behave in real time and what different voltages are meant to be reading and what happens if not what is expected. I had to stop, go Back and write all of these gems down with some drawings of Mosfet pinouts so that I will never forget it. Fantastic job as always. Love ya work mate! - LEGEND!
You are very thorough yet efficient with your explanations. Very much appreciated!
This guy knows his electronics very well and he's good in explaining everything..Thanks bro
good day alex thank you for adding words on the screen when you are repairing a device,my son kyrian venter is deaf and he cant hear,so now its much better for him to follow your prestine work,thank you for that we are from south africa in cape town strandfontein,we watched all you videos so far and gained alot of knowledge from you,we appriciate the effort you put in to this channel,a shout out from me arrie and kyrian from cape town south africa
Nice guess on the bad capacitor! It looked a little bit de-laminated, but hardly discernible even with a microscope. You could have replaced it with a 10nF capacitor, just to provide some local noise filtering. It is a conservative value, as 100nF is a typical value for those.
Now a days I'm watching your videos daily. And found them the best repair videos on UA-cam.
A true passionate electrical engineer.
Just wanted to say thanks for all the videos. They are very informative and the way you explain things really resonates with me.
Some people gave thumbs down...?, what's not to like about these videos? Keep them coming.
Ny guess its cos he used too much solder on the mosfets. Sure the pins are the same but you want a proper finish.
probably the competition hating on the Professor and Big Boss lol
Seriously one of my favorite UA-cam channels.
From me too
I like how you explain mosfet work, and what causing short by capacitor and resistor not causing short. Keep smile :)
I am an ELECTRONIC technician I give you respect on practical, you are great.
HELLO NORTH! Am an avid Subscriber, you are my first 'Go to' when diagnosing PC issues! I recently built a new Computer in my old Tower with a new Raidmax Vampire 1000W 80 Plus Gold Power Supply, an MSI Z390-A PRO Motherboard with an Intel Pentium Gold Processor G5400 CPU @ 3.7GHz! Next added 64.0 GB DDR4 3200 Ram! Also a ZOTAC GAMING GeForce GTX 1 Video Card! Recently upgraded all my HHD's with an Intel 660p Series M.2 1 TB SSD Drive C and two WD I TB internal SSD's! My Computer now boots up completely for a cold start in 30 seconds!!!! (Once in a while when I turn it on, it Boots into the Bios Screen)!!!(But when I wont to boot into Bios, no matter what key combination I press it wont go into Bios on Command)! Windows will not display on my Digital Monitor but I can see the Bios Screen on another HDMI Output to my 32 inch TV! Am running XMP Mode and Gaming Mode on the MSI along with allocating 3/4 of my Ram to Process my Adobe Premiere 2022! My Question is: How do I get the computer to Boot into Windows EVERY TIME? And secondly, How do I get my computer to boot into Bios on command?
The way you explain and work watching it happen is so satisfying i can watch you all night repairing stuff
Very very helpful video. I found the schematics of my laptop (ACER) on Internet for 5$. 1 diode and 2 capacitors in short ... now repaired. Thks a lot.
can you please name the website if you don't mind? thanks a lot.
I actually learned from this video . Way better than those cartoon videos with computer voices . Thanks for all your videos .
Awesome. Your videos are short and brief, whilst containing the crucial skills and knowledge in pinpointing the exact issue and solving it. I've learnt alot in such a short time in comparison to other 1 hour long videos from other uploaders. Because of that, I've subscribed.
Today I just got luck to visit your video, video was good. I haven't watched the way you have explained over the youtube. Something very correctly understandable. I think your explanation way will definitely make me to watch your all videos. Keep it up. It's all new to me. Thanks
I actually have that electricity feeder. Just short one flir Camara got the whole kit to start fixing again, your videos are a great refresh update on new methods
Thanks so much for the explanations! Had my laptop fixed at a local shop and having no knowledge about circuits I was dumbfounded with his lecture about mosfets and capacitors... This video really helped me understand. Thank you!
Great to hear.
@@NorthridgeFix Sir... I have a question and I really need your answer based on your experience. I was using my netbook for about 5 minutes after that it suddenly turning off and smoke coming out of the charging port, I immediately unplugged the adapter from the netbook. After that, I waited 1 hour and tried plugging the adapter back just to see if the charging port indicator light is still on and yes it's still on but I'm afraid to turn on the netbook. my question is... does my netbook still have a chance that there will be no serious damage to its components or not?? sorry about my english ...
You are truly gifted my friend. I love watching you work.
That was such a neat piece of work, you remind me of my computer maintenance teacher, he's so genious like you. Thank you for sharing your experiences.
I like this video. I need to learn how to fix it without circuit diagram. This is a good source to learn. I will keep watching video.
I’ve just found one of most useful channel in UA-cam.
Great job. By seeing this video I have fixed my college Asus laptop which was not turning On even with battery or charger. I just removed one tiny mosfet near by charging port. I found that surrounded area capacitors shows short to ground. Once I removed tiny mosfet then short has gone. I do not have a same mosfet so I decided to jumper its drain and source pins. After I assembled everything I checked laptop and wola it's working fine and charging too. Thanks for guiding through your videos.
Owais Akhter by jumping it thereby bypassing the mosfet’s function, if the situation happens again, won’t it blow your motherboard?
@@barbara82589 I knew that if the situation happens again then possibly another mosfet would fry also and could damage further towards supply rail or power management circuitry. For that reason I have added 2 Amp smd fuse in series leading to mosfet. So in case if charger cable short again from its positive to ground or laptop draws 2 Ampare because of anything wrong with charger then 2 Amp smd fuse will below instead of whole power management circuit goes blow.
What ASUS model do you have? Seems to be a somewhat frequent ASUS problem. Mine is a Q324U. I wish they would have used a harness connector for jack component instead of solder type, easier to test and swap out for those of us without soldering skills
@@barbara82589 I'm sorry I don't remember the exact model now but I will update you after ask my colleague. But I'm not pretty sure that it's frequent problem with Asus laptops. In our case charger cable was torn and by mistake it was joined reversed polarity. Once he connected charger just after cable repair then within 2 seconds laptop shuts down by itself.
Some laptops I have found small charger port PCB and some harness connects that PCB to Mainboard. So repair might be simple or requires replacement of charging port PCB only.
One of the most informative channels around. Thank you, sir.
Your video tought me more, faster than the previous 100 combined.
Your solder skills are as impressive as your diagnostics. And you take pride in your work. Thanks. Have a few “dead” old boards am going to play with but only for learning. Plus keeps me from HDL wife keeps piling on 😏
Always a pleasure to watch a pro at work
Great job as always, keep up the good work, and thanks for the thorough explanations! I am always learning alot from you and always look forward to my "daily lesson". Regards
Wow wat an explanation n I have total respect to this guy the way he explain his theory n does practical on electronics. This guy is an electronic encyclopedia
First of all,
let me introduce myself.
I"m Jadi from Indonesia as a Begginner PC/Laptop Technician.
Btw,Thank U to share the Valuable Technical On Repaire the Laptop.
Thank you very much for this video. It's very helpfull even your techniques. Great job and no commercials makes this video perfect. Very nice!
Love your work, detailed and knows what he's doing and explains each chip.
Stay safe and Keep it up
I learned more from you.
Just my 2cts : when using FLIR - do not use laptop PSU, it will shut down, use a lab PSU instead and start with 1-2 Volts, this will give you about 3 Watts of heat on your defect cap, which will show nicely on your FLIR.
Nope! It doesn't always happen that way. If capacitor is completely in short It doesnt warm.
@@renatosaraivalima I've had dead shorted caps that show warm. Less than 5 ohm. Why do you say that a completely shorted cap won't show warm?
Hello i have asus x550vx laptop it has same problem in this video laptop how i fix it (no power not charge)
@@user-ty2uz4gb7v completely short, ZERO ohm. Meter shows near about 0.23ohm. ALL laptops that I fixed with ZERO ohm caps over 1.2v, 3.3v or 5.0v lines, capacitors never warmed.
what i was about to type out, good on you sir!
What an excellent video! Logical, step by step approach with mind-blowing techniques through razor-sharp tools.
Naaah. Standard procedures and trouble shooting.
No Biggie.
Quite a learning experience towards how MOSFETs work.
You make it look so common sense and easy. My hat's off to you.
Damn I'm impressed what you're able to do without a schematic
That's because laptops have all the same principal. 2 Mosfets in the input, various stepdown converters (with 2 mosfets, various capacitors, 1 inductor and a driver) and so on, they are all alike.
If you want to know more about this follow "Electronics Repair School" channel, it is pretty similar to this one.
@NorthridgeFix Loved this channel subscribed!
Love the way you explain the workflow. Thank you!
Educational :D & Helpful :)
Pls Multimetre value show on the side of the screen
Best channel on utube hv ever washed you show everything I will wash u till I be like you.God bless you sir...
Learn a great deal in just the few minutes. Thanks robert Y
Hi! your video on troubleshooting is easy to understand and get more knowledge on repairs, thank you and continue upload more videos.
❤superb great 👍 xcellent 🎉 Alhamdulillah watching you from Bangladesh 🇧🇩 I have learnt something
Ill be mailing my computer to you. Awesome work!!!
One of best videos!
In most videos you speak very fast
Great one.
Stay safe
Woooww thanks man for the amazing video. The best technician so far!!
Loved the commentary as you diagnosed the fault. Thumbs up and subscribed.
I have been repairing electronic gear for 50 years. You make me look like a beginner!
Great job , you must title this : Basics of detecting a faulty capacitor
Nice informative tutorial but here is a thought: Voltage injecting 19v on a faulty board seems really dangerous. It could damage even more. Why not hooking it up to an external power supply, limit the voltage to 5v and limit the current as well. This will prevent the inrush limiter to kick in and you can still use the flir camera. What do you think?
Impressive! Informative, with the minimum of useless chatter.
Thumbs up and subscribed.
Thanks! I have ASUS ZenBook 14 UM431 and same problem - device won't charge, won't power up. Now battery is dead and I unable to use laptop. Using your video, I seems found Capacitor witch is shorted. Now I'm waiting for air "soldering iron" to arrive to fix the capacitor or keep looking for dead IC...
My God! What a nice microscope you have, buddy! The video quality is outstanding!
Nice job brother I like your teachings from Mombasa kenya
I have a hp omen laptop that stopped charging a few months ago. After a month or so, it just started charging again until I took cable out. After plugging in it would just split sec go orange charge then white, no charge.
After another month, same thing again.
I got a brand new genuine hp 230w charger and still same thing. Bought a brand new battery. Still same thing. Bought a brand new power jack and still same. If I use my older laptop 90w charger in this gaming one, it works and charges up. Plug the original 230w and no charge. If I remove battery it won't power on, just flickers a white light every time you try powering on. Put the 90w charger in and it works without battery
hopeful video i am from tunisia and i thank you about this repair
mosfet can do many problem as like the capacitor
13m video, and ive learned alot more than 3 months of study in repair alone
Thanks for sharing videos and your practical experience..i think this channel is more usefull than any other..fast and perfectly understandable
Awesome. Can't wait to start diagnosing my 14bis HP board. You make it look fun.
Great explanation and step by step process showing how to determining power issue!
This is eye opening.... I got similar problem, now i know.. not all the all the cap need to change.. If Shorted.. There is should be one cause everything..
You can inject 19V to the 19V rail w/o damaging but you MUST use a power supply with variable current limit, cranking the current slowly up. The thermo camera is a good idea if you have it, otherwise use your fingertip carefully not to burn yourself. Using serial connected 24V or 2x12V automotive light bulbs for current limit is a cheap solution if you do not have a power supply with variable current control. The bulbs can be 15W, 25W, 45W 55W depending on the desired current.
that´s what i do,i'm just a small time hobbyist.
edit: besides monitoring the Amps thru a second multimeter,on Amps, they can also be *seen* on the more or less brightness of the bulbs, from 5W or less to 45W
Brilliant combination of theory and practical 🥳🥳
That was fantastic to watch. Thanks for taking the time to show us your skills and knowledge.
awsesome work, realy nice video. Love your content
Thanks I been on this channel 2 years. And so many videos unseen yet
Good job Man, with easy way you have explained everything
freakin' awesome... I could watch these all day
Absolutely stunning video! I am very happy with you media.
12:06 does it matter that those three legs are bridged with solder? Those three are Source. I’m a noob to embedded electronics but is it ok that since they’re all Source they can be bridged with Solder?
You re the man! I think I'm gonna be a electronic technician
Great! If you need to figure out the cap value how do you do that? Thanks
Excellent video!! I have an ASUS A53E that is not charging or powering with its charger, but I disconnect the charger and insert the battery it turns on the orange leg (charger) as if charger is connected when actually it is not and only turns on with battery. How could I start diagnosis in this case? It doesn't seem charger related but some short with the battery or something like that. I already replaced the battery and keyboard (it was previously shutting down the laptop and has some bad keys).
Wow the best board troubleshooting I ever came across. Gracias!
you so professional bro! i hope i can learn more from you
waww.this is the 1st time I see such mosfet.thank you
amazing skill and effort!
so professional
IDK. leaving that cap out is not by the book professional but we all have our time saving tricks I guess..
@@Elfnetdesigns would it be possible to know the value of that capacitor without more info about the circuit? how would you replace it?
@@StromboliKicks I would get the schematic of the device. They exist and some are free others you have to pay for.
Love and respect from LIBYA 😘😘😍😍
Great video! While I've been building PCs for 20+ years, I have no experience in electronic repairs, what are you applying at 4:40? Flux? Heat absorbing gel? Would an ESR meter not help in finding the faulty cap?
That would be flux
Thanks for the information
In my own case I was working with my Asus and as soon I plug in my PC game pad to play games for relaxation after working on Archicad and closing for some hours, it just went of instantly as the usb is pluged, including charging indicator and other lights
I have removed the battery and held the power button for 1-2 mins to see rest by discharging any power on board, the tried powering back but not positive result
Your great technician thank you very much sir for sharing your knowledged💖
Awesome.
I'm the meanwhile, here in Canada...trying to figure out how to figure out the power supply button on Lenovo g580. Currently it's being powered on by simply plugging the adapter only.
Really helpful video! Great work! I would like to ask you something. What exactly is the gelly thing you use to remove items?
Amtech flux
I can learn a somethng here. This not 100% can be work for all laptop. Which mean, it can be different for another laptops case but I understand every what his said and we need to check every parts with the multitester. The conclusion is, check the shortage, if components is a different than usual from another for the same type like hotter, no power or discolored, mean that was the suspect. We need to remove or replace it then plug back the power source then see how it goes. Thank you for sharing :)
Very intuitive diagnosing protocol. Impressive.
I, too, have a Asus rog gl552vw with puzzling symptoms:
- when power connected, the front light for power and battery charge are on but it doesn't boot
- if only on battery, no lights on, no boot
- when I leave it, plugged or not, the area on the left of the pad becomes quite hot until I remove the power cord and the battery...
Any idea, somebody ?...
Thank you
Keep it up Northridge fix I so much like your explanations
So if you touch caps with the red probe and put the black probe on something metal, and the multimeter beeps on the continuity test (one that beeps on mine), that means what the red probe touched is shorted to ground (which is bad)? There should be no beeps at all? Am I understanding that correctly?
I'm new to this. I want to learn as I love fixing things (only do basic stuff right now, like fix software problems and open stuff up and replace parts). I want to slowly get into these sort of repairs.
You prob know that electricity is the movement of electrons but what motivates the electrons to move is "showing" them a path to some atoms that are willing to take in electrons and ground are full of those atoms.
So when we say something is "shorted to ground" that means there is a short path to ground so electricity WILL prefer to take that path instead cause it's a shorter path and most of the time offers no resistance. So having a short to ground means electricity will not take the path it is intended to take and you can test that by using the continuity mode or diode mode in your multimeter to check if a path to ground is being made.
Continuity mode just checks if both probes of the multimeter is connected to each other, if they are indeed connected the meter will beep, so if you put your black prob to anything that is "grounded" and the red probe to any component lead it will beep IF that component is connected to ground;
I'm still learning as well and i'm not sure which components are supposed to connect to ground, all i know is that every capacitor should have one lead connected to ground and the other lead should not, so if you do this test to a capacitor and both sides of the capacitor causes a beep that means the power line that passes through that capacitor is shorted to ground and you have to look for which component is actually causing the short.
I hope this clears somethings up and keep on learning!
The cap is closed off from ground and should have no direct path from the input lead to the output. It will only pass AC. Some caps have a metal casing which should also be insulated from the inside of the cap.
one of the best videos in this channel , thank you
Great explanation! I wonder which liquid you use to desolder those smd mosfets? My heater would be at 330 degree and the fan on level 2 but not pleased.
I need to know the liquid type as well, thanks!
Loving the troubleshooting steps it gives me motivation. Thx
thank you sir for sharing your ideas of how to repair mosfit...you have mosfit available?