Trace and Track Motherboard Voltages Like a Pro - Laptop Motherboard Repairing

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Note: this video was made at the request of many of my faithful followers, asking me to create a group on WhatsApp to solve their problems directly.
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[@edungbe2091]

ERB is exceptional in this industry. Keep up the good work sir. More love from Nigeria 🇳🇬

[@electronicsrepairbasics_erb]

Appreciated

[@kavishnangmg]

I'm learning laptop repairing and your Teaching style is in next level ❤ love to see more

[@electronicsrepairbasics_erb]

Awesome, thank you!

[@technical5880]

good job, peace be upon you and god bless you.

[@davidhoueto3411]

Thanks you so much for your videos

[@electronicsrepairbasics_erb]

You are so welcome!

[@amrelsharkawy6701]

Very clearly explained.. thanks a lot for sharing.

[@electronicsrepairbasics_erb]

So nice of you

[@maths_infos2182]

Thanks bro
Great Vidéos as always

[@electronicsrepairbasics_erb]

Appreciate it!

[@onurolce]

12:44 This inductor is looking an LC filter with right side of capacitors.

[@boniamar1661]

thanks for your help can you explain all about bios partnumber description and how proceed if I have 2bios chips on motherboard and I would like to programming it

[@electronicsrepairbasics_erb]

Yes, sure

[@Macharangwana6505]

Thanks man

[@electronicsrepairbasics_erb]

You're welcome!

[@jackwillard9147]

Next level 💯

[@electronicsrepairbasics_erb]

Thank you

[@johngape12-5]

thank you a lot! but i am confused: in your videos talking about 5V and 3V it seems like they are generated by the single IC, but in this block diagram i saw 2 different IC one for 5v and another for 3v, plz correct me if 5v and 3v are generated by the same IC or if it depends on motherboard.

[@joseantoniovizcarraalvarez6520]

EXELENTE

[@sanelb1147]

Hey there, I follow your videos daily. I have big issiue that I can't solve for already 5days. My Lenovo t410, is getting 19v. I have tested the IC u41 controlling the 3v and 5v MOSFETs. On the reference pin 22 I am getting 3v but on the pin 29 I am not getting reference voltage 5v. Could you please look on the schematics and maybe you can give me an idea what else to try? Also there are other 2 ics u42 and u 23 and I am not sure which one of those is the kbc chip. I don't necessarily need this laptop, but I don't wanna give up on solving the issue, I am using it to learn. I have idea the u41 is faulty but I am really not sure
Ps. I have tested all capacitors and indicators for short, and there was no short to the ground

[@asv5769]

Hello, how desktop PCs motherboards are different from laptops in terms of power rails/voltages?

[@electronicsrepairbasics_erb]

There are some differences but not much. I will explain the desktop motherboard soon

[@asv5769]

@@electronicsrepairbasics_erb Thank you. That would be very interesting. Desktop motherboards are often neglected when it comes to electronics repair. I would like to learn whether desktop MBs are simpler or more complicated than laptops.

[@jigmoon1]

❤

[@orfe]

Here is the challenge;
Buying a backlit keyboard (with 2 pin extra power flex) for a replacement when there is no backlit power pin on the mobo.
Need suggestions from pros!

[@orfe]

I mean finding correct power (assuming 9/12V DC) to keyboard backlit pins all i need.
(ps. i have and old little analog multimeter)

[@electronicsrepairbasics_erb]

I didn't understand you bro

[@orfe]

@@electronicsrepairbasics_erb

[@orfe]

That's a challenge for only pro levels which i meant :)

[@Zombie_bodo]

What pdf reader are using to read schematic?

[@electronicsrepairbasics_erb]

PDF Reader

[@Zombie_bodo]

@@electronicsrepairbasics_erb what pdf reader? Acrobat? Xchange? Foxit or?