Testing The Charging Circuit On A Laptop Motherboard Part 1




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Did this video help you?

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

Carol Jenkins: Hey this valerie Jennings i can't see the word

Raslan Anver: Excellent explanation very useful. Only one small part is not clear vpack 5v becomes 10v. Which circuit part raise from 5 to 10v. If possible please answer.

Roѕнαɴ Zαмeer: It would be much supportive if you can state the model number of the Motherboard on which the Demo is being given .Thanks

Life Care: Loptop turn on and work well after 10 to 15 seconds quick pover off please tell me problem?

Adkham Turdaliev: Hello, Sir!

Would you help or provide any clue to what happened to my laptop charging? Charger started overheating sometime ago.
I've burned one and bought another new, but it is also heating much. What i have noticed however, temprature of the charger stays normal when laptop is turned off and it is still charging. But when i turn on the laptop it heats up almost to untouchable heat.

I will highly appreciate any guidance

Yussif Abubakari: Great job

Dario Mendoza: pretty cool !!!

Karen O: Well Done! missing the brain part that tells me 5V. How do you know? it wasn't marked. Could it be on the Board?

nikpacara: Darren, can you explain me this part of mosfet Q22:

https://youtu.be/qcWowCgOFOw?t=769

Why it should have 19v out from the Drain pins as well...?
I have a problem at my laptop and exactly at this point doesn't give me 19v out?! My laptop is HP Compaq 6830s and the Mosfet number is Q1031

Can you explain me if you were right because this might be my motherboard's problem! Thanks

Alan Whitaker: Great video extremely informative

Attila Szabo: wish i had fata sheet

Attila Szabo: Hello
I measured mosfet transistor and there is 19v on one side 0 on the other during charge... faulty? I chacked online there is no part like this: 4856A mosfet go T76B

Francisco Junior: oNE OF THE BEST TUTORIAL I`VE SEEN SO FAR...TKS....

Chic01taliano: Where to find laptop schematics ?

ali behrouz: nice job

Anjeep Verma: hi.. i hve a ASUS laptop motherboard. on powering it doeant gets on. on pressing d south bridge ic. it starts.

i thought it must b some loose connection somewhere. so i cleaned total mbd wid ip solution and heated my motherboard. but still no success. pls help me.

The Yorkshire Carper: Hi daz great video i have a laptop that will turn on sometimes and then other times it wont i have to constantly plug it in and out then i can finally get it to turn on and it will run fine any ideas as its warranty has ran out TIA for any info

Shashank Singh: There is issue of reverse current in my laptop how to repair it.plz help

Leo Gurdian: a challenge in itself IS getting a hold of the schematics; it's nightmare lol
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Testing the charging circuit on a laptop motherboard Part 1