How to fix dead laptop motherboards, acer aspire 5742
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- Опубликовано: 29 мар 2017
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my favorite teacher in youtube
Today I fixed my dead Acer V3-571G, using your tutorials.
I went whole hog and found the schematic and studied it.
There was a B+ short to ground, hateful problem, found using ohmmeter.
I hooked my bench power supply up, used the +5 max 5a and touched the 2nd MOSFET output (pins 5-8). I couldn't find the hot spot, so I sprayed the board with compressed air, upside down. This showed the hot spot. It was one of a set of 4 4.7Uf 25v caps, PC56 to be exact. I just removed it, and the board fired up find.
While putting it all back together, I gave it a new bottom plastic case, since the hinge holes were pretty well broken, and a new keyboard surround. It looks great.
It has the GT730M graphics, plus 16MB ran on 2 sticks, and the i7-3630QM processor. I put a Samsung Evo 850 1TB in, it is really fast now. A great performer, used it for graphics design and programming C++
Thanks for putting up all the really great videos. You helped me tremendously. A+++ much appreciated.
hey ,if anyone else trying to find out
electronics repair services
try Saankramer Electronic Magazine System (do a google search ) ? Ive heard some awesome things about it and my cousin got excellent results with it.
Hey buddy I have almost the same problem and I need some help..
rly? 1 small thing on board can be removed to fix it!?
Great job man. I'm trying to do the same. Anyone know at 10:30 why he put the positive lead on the second pin from the right on the mosfet? Could he have placed it in any pin on either side of the mosfet?
What kompresed air did use?I bayed one domestic but it didnt frozen the motheboard..
I truly admire your tutorial talents...I really don't want to admit just how many laptops (25+) that I have tossed for possibly such an easy fix... my eye's have been opened... wonderful...
What a top quality video. This saved me from purchasing a new machine for my client. Its been 3 months and still no complaints from my ciient. Thank you and keep up the great work.
Frumos! Elegant și cu stil! Mulțumesc pentru instrucțiuni Sorin!
Sir, you inspired me a lot to learn electronics.. I've not missed even a single video to watch. You're the real master!
Great practical troubleshooting video for laptop motherboards. Great combination of reasoning, deductive troubleshooting and understanding the basic component functions and overall schematic design approach. You can have electrical engineering education but to get this good at rapid troubleshooting and repair takes another set of skills both academic and a lot of applied learning in the lab with real problems to fix!
wow you learned something new every day. you make learning easy and fun you are a cool guy thanks
Great informative troubleshooting guide . Learned a lot more in this one video than all the other 'repair' videos out there .glad I came across this one
An electronics professional. I appreciate his work and the explanations offered. A very good job. Congratulations!
That was amazing! No schematic, no BS, just short the board and feel around for heat! Wow! I've got an acer that I bought in 2010 that stopped working 9 months after I bought it, I always guessed it was a voltage regulator, I think I will be working on my acer this weekend!
The best tutor ever on RUclips.
Monsieur, pour les réparations de composants CMS, vous êtes le Roi ! Et je préfère 1000 fois regarder votre chaine RUclips que des conneries à la télévision. Merci et bravo de France 👏. Sir, speaking about SMD repairs, you're the King! And i one thousand time prefer watching your RUclips channel rather than watching bullshit's programs at TV set. Thank you and bravo from French 👏.
Thank you for unselfish sharing od your knowledge. Greetings from Serbia.
I was impressed with your diagnosis on this job.I have a similar model 4752 no power ,but I don't think I could do all that to find problem.
Thank you so much for this video. I will do just that on my acer apsire 5742. I have learnt something wonderful from you. God bless you.
Hie.I am a boilermaker but I am in love with your tutorials.keep it up
Wow!! Great video, Thanks for your video, it teaches me alot on how to find faulty components and how components work.
Thanks once again and keep up the good work :-)
Love how you repair while teaching,good job
love that you help others with your content
Wow! You are truly talented and I wish that I had the technical chops to do this as my Acer aspire v5 573 pg 7400 fried and the said it was the motherboard. Sadly my late hsuband and my life were on this laptop. They recovered some data. But not everything. I was enchanted by the entire video and I too have thrown laptops away. ! But the cost was prohibitive to replace the motherboard . If only there was someone like you where I live!
even if it not a live streaming. it feel like a live streaming, because with how you talk as if i'm or other watching you live. I like it. big thump up sir!
Achmad Priyanto I just open my aspire v5 acer idk what to do can u do a video one of aspire v5 please bc my laptop was black screen 😬😩😐 1-16-18
I like your videos and your style , you have a chill mood in thinking to solve the problem. Continue to make videos like this because is very helpfull.
thanks teacher i just repaired an acer extensa 2510 you're the best
Hoe gaan dit my friend, Sorin is good isn't he? I have an acer aspire 5742 laptop and I'm going to troubleshoot it now with this footage
Love watching your videos i have learnt to fox and trouble shoot also by watching you thanks for the uploads
DUDE. How do you find anything on your workbench.. LOL. The sign of a very BUSY guy. Keep the vids coming. I learn every time I watch. Thanks Sorin
simple and very practical tips thanks for the demonstration skills and tips...
This is the most helpfull video on exactly this issue. Thanks a lot sir. best regards :)
Very common for this model, broken hinge and then this. Thanks teacher!
Great! Best teacher on YT
Sir i watched your videos, very Educational, i learn a lot thanks for sharing this video
Great video and very Informative, thanks
You are the best one
Great and informative! Thanks
Good work Thank you very much for the information you provide us
Nice job buddy..you are rocking ..You just got one plus subscriber ...Cheers !
brilliant to see the fault finding process :)
Great job man you are amasing i got a 5742 by my self and its fine by me .Sometimes i have trouble wiht it so its great to see you leran how it work. I lived in Sweden sorry you don't 😀😀 if you do i send it to you . Take care / Janne
Just so happened that the mosfet you put in is a better mosfet than the one that was shorted. New = AON6414A, rated 30V, 30A, the one you took out MDU1511RH (schematic shows TPCA8030, rated 30V, 24A.
One may wonder why the 24A mosfet shorted, but it did.
Thanks for excellent presentation.
very good job u are doing, you explain and better you show the things, i am going to see your other videos for shore, thank you very much for your help. and keep doing this.
Greeting from malaysia!! Gonna love your educational video
my favorite best teacer electronik ..bravooo
Nice video. Helpful and worth to watch. New subcriber!
I learned something very valuable . GReat video.
Perfect 👌 you are professional 🌹🌹🌹thanks 🚩👍
yeah my favorite also teacher in you tube :)
learnt a lot from this video.....this one was a bit tricky
Wonderful repairing
Was very entertaining to watch, thanks! The Best moment: 22:28 "That chip is weird".
Thanks for the tutorial .
Thank you my friend my computer pq87 chip fixed and working thankyou again my from turkey
great video, i have an easynote b3800e which i dropped some years ago, i took the battery apart and all cells but one was dead. so my thinking it was the charger that broke, i now think i am ready to tackle this problem
I love ur videos. Teach me more about how to fix motherboard.. If i can meat u teacher... I wanna learn more.... Thx u for your videos...
wow soren: I live out in the boonies in a small town in central washington. my download is 35, and upload is 9. Here you live near london, and have the internet speed I had in 1999. I remember when mine was the way yours is in 2005, and it was a huge improvement over what I had before dsl.
people like OP are geniuses in my view. I can't imagine how to make sense of all electronics. to me he seems a wizard.
today i fixed my laptop ......you are a good teatcher for me thanks
Great repair...of the laptop....great skills....
you inspire me to become one of problem solvers matters laptops
Very nice video. Thanks
Incredible!
Tidy your desk! 😉great videos
Good job my friend
You should get a plastic box with compartments in it to keep track of all those screws that you simply put on the side so that you can keep track of where they all go.
Nice work
new thing learned, thanks.
Great videos, many likes
sir you super. i am beginer laptop repir after show your vidio.
Dude you are amazing.
acer aspire 5742;battery that 35% available plug in, charging. but my battery wont increased the battery percent.I need help! You*r my favorite teacher in youtube !
great video!
Pour moi vous etes le meilleur
So nice.. I like it very much
you are great technician
you have a good technology for repair board. you will be good manager.!!!
hello first of all i would like to thank you for your videos that you upload everyday for they are very helpful to me im so greatful that i came across your channel, i'm learning alot everyday.
however i have one problem with similar laptop with similar problem but the model is not the same my model is acer travelmate 5744 so i'm having a challenge to find the mosfet you just replaced because the motherboard design are slighly different please help thank you
hi, check my motherboards lessons, you will have a better overall picture
You are number one.
really help full
Love this videos, am gonna stick to you till i die
Ur great sir👌
Sir will you please tell me how I can learn hardware repairing? After watching your contents I am very happy that u can do these things very easily. I am a physics student from India.
grate skill and impressive problem identification and very focused approach to zoom-in on the problem.
Q. Can one obtain schematic diagram for X1 lenovo 34xx MB? where?
battery that 35% available plug in, charging. but my battery wont increased the battery percent.I need help! You*r my favorite teacher in youtube !
i 'm new her i love how he teach
You are a great person sharing your skills with others, I'm watching your videos regulary and learned a lot of great stuff.
I need an advice, I have a same motherboard in a Packard Bell laptop and what is happening, I have a charging light and it comes on I have leds and then it goes on restarting loop every 6 seconds so I assume I have a good 19v rail and 3.3v because it's turning on? Tried cmos reset same thing. Also when I leave it working in loop cpu does get hot so I assume CPU is getting power? Could it be ene controller? Thanks for help and keep up a good work. Greatings from Serbia
Hope you gort help, Most probably a corrupt BIOS problem, seen the symptopms on a few HP Probook models.
Thanks very much
Thank you.
Yr good in repaireing nice technique
thank's good job
thanks man proud of u, i have this challenge , sony vaio model sve151d11m bios locked. any idea how to clear bios other then removing cmons battery thanks.
This video is very helpful, also you have expensive tools like your oscilloscope and microscope etc. But let me tell you something, you need more space, you need a big workbench :-)
Hi there, please zoom in for more details on mainbord, and please show us where you put multimeter tip on mainbord to get measure! Thankyouuuuu, thnx to share your knowledge with us
good job
Nandi Sir..(Thank you so much sir)
thanks for this ...
sir u r great
Nice one boss
Hi, it's good guide. You have a lot of equipment. Which microscope do you use? Could you give the model?
Regards Pawel
Like your work I have a dell latitude E6520 it works for 1 to 5 minutes random time it shuts down it keeps on repeating power cycle continuously could not use the computer can you help. just need some advice on what to look for on circuit board or on fix
Wow man thats awesome
Thanks sir, question, is zippo lighter petrol a flux? Or what, is it used in soldering?