MacBook Air Doesn't Turn On - LFC
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- Опубліковано 9 бер 2021
- Board repair today, and the most text-book example of an Apple Board Repair job I've seen in a long time. Spoilers down below...
Short-circuit on PPBUS_G3H, used voltage injection to discover a shorted cap on input to DDR3-core supply. Replaced cap.
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I think that was the most I've learned in just 20 mins my entire life.
Same here
7 dislikes comes from Apple tech support 🤣
😂
Congrats on the new shop, Graham!
Quite possibly the most well explained, easily understood repair video I have ever seen! Subscribed!
My head hurts how much you know about these circuits. And how far you go! True Professional.
i was into board repair and it is so good to watch you do these repairs cant wait for the next one oh by the way when you checked that board you did not have anything but your hands that we could see is there a true way of finding out exactly .
I really like the way you explain things. Very detailed and informative.
"half a gnome" 😉 Nice to see you have a new shop Graham. Great channel. Learned a lot watching you work 👍
Congrats on the new shop Graham. I do hope we get a Captain Cook at some stage. I was stunned at how small your previous one was because the opening shot of the video made it look a way site bigger than it actually was. I assume that was due to camera lens distortion. I wish you all the best and that everything turns up roses. 👍
simple, easy to the point and humble. Thanks keep up the great work.
Thanks again for a great informative and entertaining video. I really look up to you my man
Tantalum capacitors are prone to short circuit faults caused by age and driving them with too much ripple too close to their voltage spec. I would suggest fitting new ones every time. The heat of fitting the 2nd hand replacement just pushes it closer to the end of it's life as well.
Nice repair though......
Typical Apple though. Non-standard size, capacity and voltage. Can easily get 68uF 16v poly-tantalum from RS - but of course they're a larger package size and won't fit. New ones can only be purchased from less-trustworthy suppliers on AliExpress and eBay.
not if you're running a shop and trying to make money........time is money.......no one can spend 2 hours on a board that a customer is only paying for 1 hour worth of work.
@@MattP79 Is there a way to find out the capacitors needed without schematics?
@@Pulsebass Often, no. If the chip has a datasheet it may provide guidance on the values to use. That's why "donor boards" became popular. No need to worry about the value - just replace with the identical part.
@@MattP79 wow thanks for the reply dude ,👍👍 so for example I have and Acer laptop with a shorted cap and i have another branded donor laptop with what seems to be the exact same cap physical size & colour etc should it be ok to use ? Thanks again 👍👍
Everytime I watch one of your videos I feel a pro because you explain things so clearly that I understand everything. Thanks 😊😊😊🤩🤩🤩
Keep up the good content my dude
I love when you do Macs because all of my other Mac repair input comes from Louis Rossmann (awesome source, not complaining at all) and it's so nice to hear alternative descriptions, plans of attack and level of detail from another skilled repair outlet. Awesome, awesome, awesome.
congrats on the move!
cheers to the future!
That's a nice troubleshooting step by step procedure you conducted out loud there. It's very clear and helpful. I would have used the spray method to find overheating component in the absence of IR cam though. Denature alcohol dry fast and clean but dries super fast in the slight presence of heat.
Great Video. I am dealing with a dead Mac Pro myself. On my way to the hardware store to get the right tools. Thanks buddy!
New shop, nice one Graham
very smart and logical diagnosing process , thank you for such rich videos .
Excellent tutorial. Thanks Adam!
you're my go to guy for reviews on equipment we could actually afford so i await that thermal cam review lol....from what ive seen the ones that attach to your phone are the most affordable
Nice! Gotta love these easy ones.
Thanks. The video is clear and helpful for a beginner.
Great job!! This helped a lot!
You are the best adam!!! The master!!!
Awesome thanks for the upload!!
literally spent half the day jacking with this fancy tub setup and this helped calm my nerves lol 😂
compare to other channel, your explanation is crystal clear
Thank you for your teaching, You are great, Adamant IT!! Do you run any courses on repair and maintenance ? or have you thought about it? Cheers.
I love your laptop repair videos.If possible you can do a video about reading schematics, board view or a laptop repair beginner series. Thank you
Very nice Brother...
U have good knowledge and experience...I have lot of learn from your videos...keep doing... God blessed you.... thanks 👍
Good job man!!! Love this video
I've never seen such beautiful hands on a guy before
Good job. Thanks for sharing.
excellent work.
This is the work of a genius.
congrats on the new store
Thank you for making the video for me , my master
Thermal camera Man, that's essential now a days
Appreciate your videos! I got a MacBook coming my way with the same issue, hoping it’s this easy.
Cheers dude! I found exactly the same cap blown
good and undestanding explanation. Good job i really like learning.
Humble guy nice and informative video to boost knowledge
That was most excellent!
Mr Rossmann would be proud
Nah, he want the board to drown in flux.
Do you think you could do a video on your multimeter? I was planning on getting that same Aneng and you going through how to use it for these sort of repairs would be really cool
I'll add it to the ideas list, I have been meaning to. I don't feel super qualified to talk about test gear - but all the people who _are_ qualified are all doing super high-end stuff.
Fixed one like that one a few minutes ago. It had a short on a RAM capacitor on the far left when the board is upsidedown. Actually I didn't inject voltage, the capacitor had brunt the plastic under the keyboard, and I just pulled it out. Didn't replace it though ;)
I love these air boards, they look so clean and so easy to work with, too bad theres very few macbooks where I live here in brazil, I'm sick of fixing acer keyboards XD
Uh ya acer sucks
Thank you.
Great video
you are a wizard man…
Killer gnomes of resistance!
very intresting video,thanks
very good bro.
Clear sound easy to understand (specially for non english ppl)....can i ask which camera and mic you are using for recording?
Can you explain how to test mosfets in motherboards..they are really confusing 😔😔😔
Hey! Greetings from Canada. Like your videos. I recently lost my MacBook Pro 15”, Got rest it’s soul. I had a scratch disk error and since then it stopped working. It is possible to save the content from the hard drive? Or is that dead too?
Great perform. Support Man. Ciao
I am working on a a1466 where the macbook air will turn on once I unplug and re-plug the battery cable on the logic board. The charger works correctly going from orange to green. When I had the macbook air powered up, I could restart it several times without a problem. However, if I shut it down then it would not turn back on. It definitely had a minor spill (chocolate milk) that has been thoroughly cleaned out and the logic board looks prefect. The main power board (where the charger plugs into) had some rainbowing on sveral terminals which I scraped to clean it up a bit. I am almost done putting it back together and was hoping for any advice or guidance? Do you know what could be wrong? Cheers.
hi, i recommend you always remove the headsink from the cpu , you never know its that its damaged. good video sr
Good job
A high reading on a capacitor read from a DMM can also mean leakage. Remember DMM's measure capacitance using charge timing. You can increase charge timing by adding leakage.
Yea fair point. In this case we were like, 1 or 2uF out, I'm sure it's fine. But that deffo sounds like something to look out for. I'll have to do some comparisons with my component tester to see if there's an easy way to test for this without an expensive LCR meter.
Maybe you could do a video on some of the tools you use in your day-to-day work?
@3:05 “Let’s see if we have a short to ground.... *DMM reads half an ohm* Ah.” 😂
New shop? The old one seemed pretty cozy. How is the new one then? Bigger? Cheaper? or what? Maybe do a shop tour once settled in?
very good
NEW SHOP!!!!!....Nice..:)
I have a similar type of problem with a Acer e1572 which started up before, even with a blinking Amber LED lite and after replacement of Memory RAM and new ac charger.
I couldn't reset to factory settings from the main screen. So I decided to disassemble it to reset the CMOS battery. Unfortunately this model doesn't have a CMOS battery.
After reassembling it, it will not start up. Thinking it was the Battery Pack, I bought a new one.
The LED is blue indicating fully charged, no fan sound nothing.
Still it will not turn on?
HELP!
just wondering, how much do you charge for fixing that macbook air? like what would be the cost?
nice job 👍
This guy isn’t an expert...
He’s a god!
Good work man keep it up! Any tips on re-soldering an AM4 socket? Got a replacement one for my B550 board and have been practicing on the old one!
Not yet. I want to get into socket replacement, but it's a rainy-day project at the moment.
Nice shop
ATOM ROCK !!!!!
You are not wrong that if a capacitor is measuring a tad over, it's no big deal. I believe it is important to stress the point, that it's ok if it's over as long as it is inside of the given tolerance. This is important because a leaking capacitor will show "over" capacity, which is to say, it's going to fail soon. Best to replace with a new one IMO. Take this for what it is worth, or with a grain of salt.
Did you replace the fuse too or only the defective capacitor? I think my Air has the same problem.
Hi. Can you tell me what's the type of camera what you are using above the board? Thx.
Yep thats the one that goes bad ! Its connected to the ppbusg3h you hotwired
amazing
How would we go about checking and testing for Pp3v42 if the light did not work on the cable ??
Won’t injecting voltage on that board potentially damage your power supply?
How can you check if the actual Keyboard Power Button is working? Is there a way to bypass the keybaord and power up?
You rock man !!! What temperature 🤒 do you use to remove the components ?
450c on the hot air, 400c on the iron. This kind of heat is massive overkill for smaller circuit boards, but on laptop motherboards, especially apple motherboards, the ground plane is like an anvil.
my macbook pro 13" late 2013 took a big gulp of hot tea and shut itself off instantly, i opened it up and dried off the logic board as much as possible, but it took a week to get a screwdriver set to get the logic board out and flipped around. i opened it last night to see two small spots of corrosion, cleaned them up with 99% alcohol and still nothing works. power supply shows a light to indicate the batteries still take power. i thought maybe the keyboard was dead or the ribbon cable got damaged, so i tried jumping it with the direct power supply/disconnected battery, as well as with the power pins on the board, nothing works. the guy near me wants me to pay nearly the same amount as a brand new macbook pro to look at it and MAYBE fix it, PLUS whatever parts it needs. this made me realize there's a lot more to working with logic boards than just the base parts, could be literally anything or everything that needs fixing.
Hey man new to the channel great vid however have a macbook air no short circuit on either rail no power wathsoever any help plz
Where does he get those toys? How did you get the schematics and such, mate?
What is the name of your power source sir?.. where can i buy it?... i can't see anything like yours which you can inject the current at your own will.... which is not a constant current?...and my power source will turn off if he can detect short circuit...hoping of your response sir.. thank you :)
I have a problem in my macbook air 13 it won’t on the power button even if I replace a new battey what should i do? Can you please help me sir?
Well done :-D, at least there is nothing else to repair on it.
The bending could have caused other problems, but it didn't :-D
Nice little multimeter, i looked at them a few years back and wondered why some people poo pooed them.
Looked fine to me.
It's not the fastest in the world, and lacks manual ranging. But it's impressively accurate for its class, and cheap enough for the short comings not to matter.
Hi, my Macbook Air does not turn on after Water damage. Can you fix it? Can I get some information how to send to you and estimate?
Thank you.
I just do not understand where and when to inject 1V and when to inject 5V or more i.e. could you explain to me plz :)
I have bought a macbook air a1466 emc 2632 2013 model I believe. . The LCD Screen does not light up but there is an angle where I can seem to see the log in password window but very faint.. but plugging to an external display and there is no issue it will work. . Would it be a lcd replacement? if it is do you suggest buying the whole replacement assembly or just the screen?
That's a backlight fault. At 4:00 I show basic checks on the backlight. See if the output diode is shorted to ground (_should not_ beep in continuity mode) and then check that the fuse hasn't blown ( _should_ beep in continuity mode). Also do an SMC reset and a PRAM reset, because sometimes it's a software issue and you get lucky.
If the backlight is shorted, it's likely a damaged display connector, or the display itself needs to be replaced, or both.
If there's no short, but the fuse has blown, just a replacement fuse should fix it.
You can use you phone for a thermal cam until you get one. I’ve been using my phone until I can get one myself.
I need to send my computer to you asap
Nice vid can i ask what is ur power supply?
I have a Hanmatek HM305p, aka Rockseed RS305p
where do you get the schematics program from please
Where can I find replacement chips for laptop motherboards ???
just curiosity , for the schematic , is there any legal consequence for using and showing it , there is wording on the schematic said that it is proprietary property, a lot of UA-camr using it on their channel , seem nobody care. I want to show it on my future channel also. Thanks
it was brilliant
(:
can you repair mine also i have 2015 mac air and also one more no backlight let me know thanks!
fantastic video again. P.S could you let me know where to get those tweezers please and if you can tell me how good are they durability wise and work wise as well thank you.. P.S i see now why apple hates you 8 rotten apples
Search ebay for "ceramic tweezers"
They're very good for durability, but they're not super sharp, so not very good for small components.
@@Adamant_IT Thank you for feed back regarding the ceramic tweezers info greatly appreciated. do you have a good site for fine tweezers to work on small components cause some of the tweezers i used keep sticking or slip with some of the part i try to disolder . i will see as well for that ceramic ones hope to get a good brand.
scissors, clipper, lawnmover, anything... haircut, now! :D
I know, I know! I'm beginning to consider buying some clippers.