Testing The Charging Circuit On A Laptop Motherboard Part 1




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gaasl89: hi guys ,i want a name of a book that explain the laptop circuits in details and its voltage distributions ?

Joaquin Cortes: Hello fixitdaz,Have an Aspire, when I connect a charger (19 V) with the laptop off the battery loads fine, but when I turn it on charging lights flash and asks me to conect the charger. Only with the battery works fine, and I tried it with other chargers and does the same, I tried it with a 20 votls that if it worked well, which parts should I check? Thank you very much for the videos, they are very good.

Raf De Simone: Hello where can I buy the scanner?

Doom2pro: I never understand why people refuse to call a component by it's real name, Inductor. All "coils" are inductors but not all Inductors are "coils". It's no different than when someone calls an SMD Capacitor a "condenser".

patcom fixer: Great Video dude, I've been looking for this tip for a while.. Cheers from Canada

Kamlesh Gupta: Like this video...

fixitdaz: Hola, tengo un feliz lugar acer voy a ver lo que puedo hacer, y gracias por su atención gracias.

Rogelio Ga: Excellent video, thank you very much. I have a question: you put the yellow tags to the voltages, or are included in the scheme?.

linglingjr: Did you make the schematic for the AC circuit or find it on the web? I can't find any schematics for a laptop I'm trying to fix the charging circuit on: Asus K60ij

jazzman427: This is great, very nice of you to share. Where is the best site to get schematics at minimal cost?

Chris Barrios Harrison: Hola. Thanks for the reply, nice to see the tech help world still has some rolling stones :) Tried each of the links with no success, seems like I've stumbled upon a more secretive line of Acer!

fixitdaz: Hi PLAlfa, Its not written this is what i got out of the charging chip, then it was doubled up to 10 volts before it gets to the battery. if you are testing a charging circuit the characteristics may be different depending on the motherboard make and model, you would have to look up the chip and see what the output voltages are.

fixitdaz: Iv you go too Part two of this video there are some schematics listed in the description. Hope this helps.

ali shah: great vedios

240pixel: I have Lenovo 3000 n200, witch stops charging battery after few minutes. battery is brand new, and one thing I've noticed, when it stops charging, if you remove a battery (pc is on AC adapter) it turns off. I think its the charging chip's fault. thanks for the video. I will try to check it.

john a: what would be really great is you taking an old laptop which does not work and make it come to life. An excellent video. As you say if you can fault find the parts on one laptop and are able to read schematics then you can apply it to another; Thanks.

fixitdaz: Thanks.

computertechled: great video men i hope you keep up with the training

whitetiburon: Man brother you are AWESOME!! I have a mac mini 2009 with no power. Is there any way I could get the schematic for a mac mini?

Chris Barrios Harrison: Hi again, MB.TW506.001 is the part number but still no joy :(

SLIM abid: please put the link of the schematic circuit

Reparatour: I dit a lot of research but I can't find circuit-diagrams for my motherboard. Do you got any pice of advice where I can usually find them? On the manufacturers-homepage I can't find any. Thanks for help!

fixitdaz: Thanks for the words of support,sometimes it is an educated guess,You know wat component you are looking for and you can see the other components that it connects to from the schematic and in most cases there is a id mark close as pos to components on the pcb so with a bit of deduction you can normally figure it out. Hope this helps,Thanks for watching.

fixitdaz: Hi Rudy Glad you enjoyed it, i will see what i can do, time allowing .

fixitdaz: Thanks

fixitdaz: Your welcome.

robert linsky: how do i find out about the schematic 4 hp dv6-2066 note book product vw881ua#aba flooringindiana@yahoo.com

PLAlfa: where was written that the voltage changes from 19 to 5 and after that to 10?

Dariusz Kuczynski: Hello Your scheme which site you downloaded?

jack jacky: Hi uploader ,and thanks 4 the great work. im looking for the circuit diagram from MSI GX720 1722 model ,any idea where can i find it. cheers.

grimreaper9666: Great video easy to follow, can you do some apple laptops please thanks

fixitdaz: Your Welcome,Thanks for watching.

fixitdaz: Excellent, glad you found one, if the guy has a website pm me the link and i will drop the link in the description.

Jahan Zeb: Dear friend nice video but your circuit explanation is not very well.

Chris Barrios Harrison: For anyone else out there who happens to be looking for a schematic but has no success you cant go much wrong with this eBayer: ebay. de/itm/300595054957?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

MrEthanhines: This is great. Thank You. There aren't a lot of people willing to share this info freely, so I commend you on your generosity. I have a quick question, I find it very hard to find components that are tiny especially when the designation is not near the component as I can see is your case too. How do you find components by what is written on the mainbord when they are all bunched together? Thank you again.

mohamed haran: nice video

fixitdaz: If you go too Part two of this video there are some schematics listed in the description. Hope this helps.

EXPANDER: Great and clear video, thank you !

Chris Barrios Harrison: Excellent guide, especially for a beginner like myself :) I think I know what component(s) have failed (input charge registered but no output). HOWEVER I can't find the schematics for my laptop to confirm my suspicions or to identify the chip part numbers (neither are labeled ). Do you know of a good resource I can use which offered schematics? The laptop I'm currently looking at is an ACER 8472TG. It's not receiving power from the working adapter and it's not charging its battery....

Pedro Custodio: Pretty cool. I am about to take my first electronics class and im just getting as much in as i can so that it wont be too difficult. Thanks for these videos.

fixitdaz: Thanks, Glad it made sense.

fixitdaz: See part 2 for links. Thanks for watching

fixitdaz: Cheers buddy.

fixitdaz: Thanks, I added the yellow tags to denote the voltages. Thanks for watching.

Dariusz Kuczynski: Hello Your scheme which site you downloaded?

fixitdaz: Forgot to mention, if you check out the video description there is a link to part 2

Britec09: Nice video there Daz keep the videos coming.

fixitdaz: Hi you may find more information in part 2 see description for link. If you can read a circuit diagram it is not a too complicated circuit. Thanks for watching.

John Buritica: Hi thanks for the videos. I am trying to get the diagram for a piwg2 la-675ap mother board. do you have any idea where to get it for free.
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Testing the charging circuit on a laptop motherboard Part 1