Great lesson! Unfortunately, there are often times (as you know, of course) that schematics are unavailable. What is your process for determining the 3V/5V power rail locations? I just wanted a different "perspective" on this subject as I have one but am always looking to shorten the time troubleshooting a "dead motherboard" (ie no power on the LED). Take care and thank you again for helping this community of technicians!
I'm lucky because I found your channel on RUclips, as I'll be able to learn the basics of electronics and also improve my English language, because you speak in a understandable language and also don't speak too
10:35 Great video, but you should also mention that when the adapter light turns off due to a short circuit, it stays OFF even when you unplug the DC jack from the motherboard. You need to unplug the power cord from the mains and then plug it in again to restart the adapter. You didn't include this part in the video, and it's important for beginners. By the way, I'm also a beginner and a new fan of your channel :)
1 question. If the very beggining we knew that there is a short because the led wnet off ,,that means the mosfet cannot be faulty because that doesnt cause short :/ am I correct? also if I do not make a bridge on mosfet but simply remove it ,will that be the same solution to go ahead?
I sure would like to see you make a complete video you taking maybe lap top that don't work and troubleshoot it from beginning to end step by step. Your methods. That would be nice if you did a few different repairs.
Hello engineer, I greet you from PERU 🇵🇪, and thank you very much for the video, which by the way is very well explained on how we should find a short circuit on the board, thank you very much, good engineer, I have a question, could you show the adapter that I use to detect the short, how it did it, or how much volts and Amperage it should be, thank you.
hello , at 09:40 you shorted mosfet source to drain , the question is we have to short all pin on source and all pin on drain connect together by wire ?the secend question is did you use spical wire for make a short ? thnx
The first video in the last 5 years i love not just like !! I subscribed straight u r a hero because the explanation incredible clear and understandable opposite the other shity videos on youtube... many thanx
Please can you help me out ? I have HP ProBook 4540s and the cap lock light use to be on even when power off. It has caused me change of batteries and keypad. It also makes continuous beeping sound. Though, after changing the key pad, the beeping will stop only to start again after some time. Please, what could be the cause. I need serious help here.
The Caps Lock light staying on and continuous beeping can indicate a hardware problem. It might be related to a few potential issues: Keyboard Issue: Even though you’ve changed the keypad, ensure the replacement is compatible and properly installed. Sometimes, incorrect installation or a faulty replacement can cause similar issues. Battery or Power Supply Problem: Ensure the battery and power supply are functioning correctly and are compatible with your laptop. Try running the laptop on AC power without the battery to see if the issue persists. Motherboard or BIOS Issue: The problem could be related to the motherboard or BIOS settings. Resetting the BIOS to default settings might help. If the problem persists, there could be a deeper issue with the motherboard. Hardware Diagnostics: Run HP’s built-in hardware diagnostics to check for any hardware issues. You can usually access this by pressing a specific key (often F2) during startup. Good luck.
are inductors are supposed to have voltages? i tested my laptop's inductors i read no voltages tho the laptop is working fine, i just disassembled it for educational purposes
I saw in the last schematic, towards the end, The source of mosfet is connected to +19v batt.. I'm always used to seeing the drain connected to +19 v battery side.. I have never seen this before in most of your videos. What is the difference plz
Nice Question, the source can be connected to 19 v when the Moseft is P-channel, and when the mosfet is N-channel the drain is the terminal that will be connected the The 19v power rail. and usualy the mosfets used are N-channel
Hello sir good day i love your content about Diode. optocoupler and transistor and i learned it clearly in my mind. i'am beginner co'z ilove so much electronic. Sometime I can't understand it.
@@electronicsrepairbasics_erb thanks sir for replying me. More step by step fro basic parts. Cause and efect and trouble shooting and circuit connection about each other sir I am form philippines.thanks a lots sir.
Hi. You sound like you know a lot about a PCs. I have a Motherboard with no Manual for it and it's not available on line. My header has 10 Pins unmarked. Can you please tell us how to identify Front panel Pins using Multimeter or any other technic without damaging the board. Thank you.
Mery pas laptop hai usme ye problem hai k laptop ko charger connect karta hon to laptop off ho jata hai phir on ho jata hai asay hi on off on off hota hai charger bhi change kar k dekha hai please reply
Performing hard reset will only fix my issue for few days, makes my laptop work for few days, again the power issue persists with my Dell G15 5511. I mean my laptop gets dead at the place where it is kept shut down. Could you please tell me how can i fix it Permanently?
i have a lenovo T470s laptop that wont power on and wont charge either and when adapter plugged in the indicator light doesnt show at all but when i test the power jack i get 20v power from the adapter. the indicator light is on a seperate micro board for usb. its mother board seems confusing and is very compact. any advice.
Regarding this i followed some previous teachings and checked out the board. the 19v power rail seems okay when i checked since i can detect it in most of the areas on the board even the at the power switch i manage to get 3v. this issue basically started after some tripped over the adapter wire while it was connected to the laptop. there seems to be no shorting. but if it fails will just borrow another and finish some assignments as i keep this one for the mean time. am unable to join the patron area for now where you reccomended but hopefully will do with time but other wise thanks for the videos.👍
also why the mosfet doesnt provide 19v if there is a short on the other site :( i dont get it.. if the mosfet ok then should be 19v at the other side no? :/ we should understand the goal of mosfet actually..
much easier to inject power to the motherboard to see whats over heating and use flir camera or put freeze spray over it either way you find it much faster , i never ever use diagrams waste of my time
![BLACK BAG - Official Trailer [HD] - Only in Theaters March 14](http://i.ytimg.com/vi/Du0Xp8WX_7I/mqdefault.jpg)
My Facebook Group to help you solve your laptop motherboard faults:
facebook.com/groups/723491633169505/
Thank you! OMW to build a laptop for university and you helped me revive a motherboard.
How brilliant you are. Thanking you is not enough for what you have provided. Better than a thousand paid courses ❤❤❤❤❤❤❤❤❤
one of the great troubleshooting tutorial, you showed the schematics as well, which helpful for understanding, you got one more subscriber.
Cool, thanks
I was just browsing on youtube and im glad youtube suggested your channel. I learned a lot with just part1, specifically on how the 19volt rail works.
Glad I could help!
We're waiting for the part 2 . Your teachings are so understandable, keep it on.
Very soon! Thank you
Great lesson! Unfortunately, there are often times (as you know, of course) that schematics are unavailable. What is your process for determining the 3V/5V power rail locations? I just wanted a different "perspective" on this subject as I have one but am always looking to shorten the time troubleshooting a "dead motherboard" (ie no power on the LED). Take care and thank you again for helping this community of technicians!
your explanations and demonstration are too easy going for me, i need more of your video and will recommend this site to others, you are great
Awesome, thank you!
I'm lucky because I found your channel on RUclips, as I'll be able to learn the basics of electronics and also improve my English language, because you speak in a understandable language and also don't speak too
You're very brilliant ! can't wait to see part 2 !
I'm glad you enjoyed it! I'm working on part 2, and it will be very informative 👌
10:35 Great video, but you should also mention that when the adapter light turns off due to a short circuit, it stays OFF even when you unplug the DC jack from the motherboard. You need to unplug the power cord from the mains and then plug it in again to restart the adapter. You didn't include this part in the video, and it's important for beginners. By the way, I'm also a beginner and a new fan of your channel :)
Your maintenance philosophy is clear. A Good Job Be Logical When Repairing! Great video!
Thank you , please do more video about this. It have so many image to easy understand.
We will!
You are very good teacher. Subscribed
Thanks and welcome
let me turn on the notification bell for part 2, im eagerly waiting. i love the teaching.
Awesome, thank you!
Before bridging, do we check the gate for voltage?
my master, you explained it very well. Thank you very much with the sema and the measuring instrument and explaining
So nice of you, Thank you
glad to attend this class . thank you.
a very helpful video...thanks
So happy that you are back. 1000 thanks
Thank you, too! Bro. Strong back 💪
1 question. If the very beggining we knew that there is a short because the led wnet off ,,that means the mosfet cannot be faulty because that doesnt cause short :/ am I correct? also if I do not make a bridge on mosfet but simply remove it ,will that be the same solution to go ahead?
Interesting, good job. I'll wait for the 2nd part.
I'm working on part 2, and it will be very informative. Thank you
Thanks man👍🏼
Any time!
I sure would like to see you make a complete video you taking maybe lap top that don't work and troubleshoot it from beginning to end step by step. Your methods. That would be nice if you did a few different repairs.
Thanks for the idea!
I was also kindly thinking so bro
. Other ways ur doing great.
Hello engineer, I greet you from PERU 🇵🇪, and thank you very much for the video, which by the way is very well explained on how we should find a short circuit on the board, thank you very much, good engineer, I have a question, could you show the adapter that I use to detect the short, how it did it, or how much volts and Amperage it should be, thank you.
Hi ADAN,
So happy to help.
You can use any adapter with appropriate voltage that contain an LED. For me I used a 19V adapter .
Good luck
Good Vid! Looking forward to Part 2.
Glad you enjoyed it!
BRAVO BEAUTIFUL EXPLANATIONS IT IS POSSIBLE TO HAVE AN EXPLANATION ON THE SWITCHING POWER SUPPLY AND ITS COMPONENTS THANK YOU
You are welcome
@@electronicsrepairbasics_erb THANK YOU
Thank you very much for sharing your knowledge. 😊😊😊
My pleasure 😊
hello , at 09:40 you shorted mosfet source to drain , the question is we have to short all pin on source and all pin on drain connect together by wire ?the secend question is did you use spical wire for make a short ? thnx
I shorted all pins. You can use any wire that can support the specific current on that circuit
@@electronicsrepairbasics_erb may i know what is name of wire that you are using ? or what kind of wire . thnx
Where do you get your schematics from? Very informative video, thank you.
Thank you, free ones from google, and buy some, If you want free schematics you can join me on my Patreon Page
@@electronicsrepairbasics_erb they are not "free" in your patreon page. Shame.
Nice explication thanks ❤
Glad it was helpful!
I will be waiting for the 2nd video with excitement
I'm working on it. Thank you.
Great Video as always,keep them coming
Thanks, will do!
The first video in the last 5 years i love not just like !! I subscribed straight u r a hero because the explanation incredible clear and understandable opposite the other shity videos on youtube... many thanx
Please can you help me out ? I have HP ProBook 4540s and the cap lock light use to be on even when power off. It has caused me change of batteries and keypad. It also makes continuous beeping sound. Though, after changing the key pad, the beeping will stop only to start again after some time. Please, what could be the cause. I need serious help here.
The Caps Lock light staying on and continuous beeping can indicate a hardware problem. It might be related to a few potential issues:
Keyboard Issue: Even though you’ve changed the keypad, ensure the replacement is compatible and properly installed. Sometimes, incorrect installation or a faulty replacement can cause similar issues.
Battery or Power Supply Problem: Ensure the battery and power supply are functioning correctly and are compatible with your laptop. Try running the laptop on AC power without the battery to see if the issue persists.
Motherboard or BIOS Issue: The problem could be related to the motherboard or BIOS settings. Resetting the BIOS to default settings might help. If the problem persists, there could be a deeper issue with the motherboard.
Hardware Diagnostics: Run HP’s built-in hardware diagnostics to check for any hardware issues. You can usually access this by pressing a specific key (often F2) during startup.
Good luck.
are inductors are supposed to have voltages? i tested my laptop's inductors i read no voltages tho the laptop is working fine, i just disassembled it for educational purposes
How'can i join your tutorials channel, i like your teachings
You are very welcome Bro, you can follow me on my RUclips channel, my website or to be in touch with me closely join me in the Patreon Page.
Regards,
Have you done a video of failed laptop graphics ?
Great video very informative and interesting
I saw in the last schematic, towards the end, The source of mosfet is connected to +19v batt.. I'm always used to seeing the drain connected to +19 v battery side.. I have never seen this before in most of your videos. What is the difference plz
Nice Question, the source can be connected to 19 v when the Moseft is P-channel, and when the mosfet is N-channel the drain is the terminal that will be connected the The 19v power rail. and usualy the mosfets used are N-channel
@@electronicsrepairbasics_erb Thank you very much.
Thanks for this great video, please what is title of the song at the end of the video
excellent video!! @11:15 what happend backstage?
Electric spark due to short circuit
Buy Repair Tools👇👇👇
northridgefix.com/shop/?ref=ERB_23
U are master bro .please continue 🙏
Bro Asus Chromebook leptop ki power ic krab ho gyi khi se buy ho skti he kiya
Brilliant 👏
Thank you
Hello sir good day i love your content about Diode. optocoupler and transistor and i learned it clearly in my mind. i'am beginner co'z ilove so much electronic. Sometime I can't understand it.
How can I help you?
@@electronicsrepairbasics_erb thanks sir for replying me. More step by step fro basic parts. Cause and efect and trouble shooting and circuit connection about each other sir I am form philippines.thanks a lots sir.
Hi. You sound like you know a lot about a PCs. I have a Motherboard with no Manual for it and it's not available on line. My header has 10 Pins unmarked. Can you please tell us how to identify Front panel Pins using Multimeter or any other technic without damaging the board. Thank you.
Hi Jerzy, I give the assistance on the Patreon page
If possible an explanation of what each component is used for in the main power and also in the charging system of the computer tank you
ok I will
@@electronicsrepairbasics_erb Thank you very much I appreciate it
If it has a short circuit. And the light turn off. And when you start checking the 3, 5V circuite your power adaptor doesn't turn off. How?
Hi there, my question is 3v and 5v Circuit is always near the Super i/o chip or not ? if not how we can find them on the motherboard. thnx
Using your experience, schematic, or guess and test (you will find always two coils next to each other)
Great information think you ❤❤❤❤❤
You are so welcome. Check the second part of the tutorial. You will love it.
Thank you
Nice video, keep it up, thanks :)
Thanks, will do!
Hi , at 05:37 next to the capacitor we have 3 dots and 6 dots, what is the meaning of these dots on the motherboard. thnx
That points mean the distribution of the power rails, I have already made a video where I explain that points
Where did you get the circuit diagram?
Hi there,
fell free to download the schematics in my Patreon page
what are the points factor causing short circuit occured?
Cost price ky rhegi bhai shop p?
great tutorials thank you but you must make something about your mic man
Sorry about that
@@electronicsrepairbasics_erb ithink those mic filters Will work thanks
very nice to learn about this type problume
Glad you liked it!
please i awit the part 2 of the shorted board, i have many shorted board and this will help me out
Hi Joad,
Just follow my videos and I guarantee you to fix all shorted motherboards you have regardless of its complexity
Mery pas laptop hai usme ye problem hai k laptop ko charger connect karta hon to laptop off ho jata hai phir on ho jata hai asay hi on off on off hota hai charger bhi change kar k dekha hai please reply
Hi Sir, where do you get the schematic diagram from?
Some of the schematics I use are paid, and some are free.
Use Google first to search for a schematic.
Hello Sir, in my case I got a shorted motherboard when plugin the adapter no power but the LED stay on any idea ?
Dear, may I ger the motherboard diagram link? plz
Good examplen your voice is not clear and clarity use high quality mic and speak clearly your channel will improve more
I will try my best
What part number is this mobo? Thanks!
Please can I get this circuit diagram pls 🙏🙏
Of course bro, available on my Patreon, link in description
Performing hard reset will only fix my issue for few days, makes my laptop work for few days, again the power issue persists with my Dell G15 5511. I mean my laptop gets dead at the place where it is kept shut down. Could you please tell me how can i fix it Permanently?
Hi @sabdasangeet207,
Glad to help, you can join me on my Patreon Page as a mentorship experience member and be in touch with me via WhatsApp
Thank very much for tu
No worries
please make a tutorial video about how to make a short on mosfet by wire like 09:41 . thnx
Noted
I love the content, but please consider changing your microphone setup, because the sibiliance is actually very distracting.
very soon
What is the repairing cost for this problem
How to download circuit diagrams you use
Hi there,
All Schematics I use in my explanation are for free on my Patreon Page + other exclusive content
@@electronicsrepairbasics_erb share link of your patreon and how i can get them
Actually these electronics or computer fundamentals programs are like the architect plan or design in cities around the world 😅
6:04 how could we identify "that is gate" "this is drain four pins connected together". how to know this?
11:17 what happen....😮
i have a lenovo T470s laptop that wont power on and wont charge either and when adapter plugged in the indicator light doesnt show at all but when i test the power jack i get 20v power from the adapter. the indicator light is on a seperate micro board for usb. its mother board seems confusing and is very compact. any advice.
Hi there, It seems that you have a problem in the 19V power rail, I can assist you on my Patreon page.
Regards
Regarding this i followed some previous teachings and checked out the board. the 19v power rail seems okay when i checked since i can detect it in most of the areas on the board even the at the power switch i manage to get 3v. this issue basically started after some tripped over the adapter wire while it was connected to the laptop. there seems to be no shorting. but if it fails will just borrow another and finish some assignments as i keep this one for the mean time. am unable to join the patron area for now where you reccomended but hopefully will do with time but other wise thanks for the videos.👍
Mine is Dell Inspiron n4050 it power ons automatically and the voltages are going up and down quickly
Hi ,
I can assit you on my Patreon Page untill you fix the issue.
Thank you for clip. Need to subscribe to ur utube
How much it cost for repair 😢
Sir But Why you dumped Skills glow channel?
Thx sir:3
nice `1
Sorry brother. What you explain here is only the beginning and mostly the problem hides in much more deeper.
Did u read channel name😂😂if u are that smart why u watching this😂😂
@@yourambientlightGood answer
what is real problem if your laptop has a blinking light and won't
turn on.
Sema means schematic :)
Don't worry TOLGA BABAOGLAN, I understand my followers very well👍
also why the mosfet doesnt provide 19v if there is a short on the other site :( i dont get it.. if the mosfet ok then should be 19v at the other side no? :/ we should understand the goal of mosfet actually..
Wheres the part2??😢
Just search for short circuit in the channel you will find Part 2 bro
I blown 2 compesators on my own. But hey i found the problem, 😂
Where to download systimatic diagram for motherboard ?
Use Google and you will find it
What if the pwr adapter's light on but the power cable's socket heating
Check an other adapter
Asus Chromebook power ic buy sides option
What do you mean Please??
Looks like ya got power to me. People are coming here because they have NO power. You have 3 and 5v where you're supposed to right off the bat...
much easier to inject power to the motherboard to see whats over heating and use flir camera or put freeze spray over it either way you find it much faster , i never ever use diagrams waste of my time
Right bro, but understanding the schematics is not a waste of time, not all technicians can get voltage injectors and thermal cameras.
Regards
Bios chip winbood ı havent 3.3v and not open please help me how can ı do
Hi Please send me that diagram, thanks
Hi Bro,
You will find it in my Patreon Page,
Regards
Circuit diagram pls bro
Already uploaded to Patreon page
3,3v
Please don't repeat comments
Tutor ride on
??
My charger light is on but my laptop power in not on
Same
You wrote it not in English, I think you meant Turkish, but thanks anyway
You are welcome, bro.
❤❤❤❤❤❤❤