Motherboard Important Signals Explained

[@khanhly4620]

BTW thanks for informative/ educational for a person journeying into computer repair myself. Your explanations and detail flowcharts is amazing. I wish you can PDF those flowcharts for us to keep so we can keep and retain those knowledge tho

[@alainhofer6350]

bonjour très bien expliquer merci pour ce cours sur les signaux important d'une carte mère de laptop et merci pour la traduction en français ,ça m'a permis de suivre votre cours ,je vais suivre toutes vos vidéos, je vous salut depuis la France , je vous dis a bientôt sur votre chaîne

[@davidasare6841]

I just watched this again. This is very informative. Very detailed and simplified, Thanks a million brother.

[@FixTronics]

Thank you so much brother

[@mohammaddahbour2398]

nice explain please give us more of this field .. thank u

[@davidasare6841]

Thank you brother. Always learning something new.

[@dzabakwesi2213]

Excellent presentation sir

[@FixTronics]

Thanks brother

[@renatoferreira4596]

Muito bom!! 👏👏.

[@koskkk]

Again, very nice work. Thank you.

[@FixTronics]

You welcome brother

[@adamsaj28]

We must memorising all those signals in-order to troubleshoot laptop ? 😁

[@Watch__This_]

I had some cases with PLT RST HI but no image and no caps lock, what do you think in such cases? Tested good bios bin, cleaned...if you have that kind of case you can make a video :)

[@hendrihndri6353]

Very helpfull, thank u..

[@LuisMendez-nz2bn]

Would be a good idea to number the diffent stages to be able to logically track the various signals... But excellent work and your English is excellent . Kindly do a video explaning how to track the sequence using a schematic diagram if possible. Thanks again!!!!

[@occazinfo7369]

very informative thank you

[@abbesbenmaissa4980]

Thank you brother , very informative

[@boudrass]

Thank you brother , very informative , tracking signal is very hard .

[@FixTronics]

U R welcome brother

[@TT-dy1wd]

Very very very niiiiice u r proff man thank u man

[@ARFIXIT2022]

that was a good explanation regarding on laptop signals.. keep it up bro..

[@burhanuddin127]

Really Really helpful videos, I really don't think anyone is giving this kind of info on you tube right now, thank you....

[@FixTronics]

U R welcome brother I am glad you liked my content 😊⚘

[@FixTronics]

Thank you friend I really appreciate your valuable comments

[@tonyb4444]

Very Helpful!! Keep Going !!

[@circuitbornelectronics7578]

Thank you Sir, very informative

[@sumuduasiri]

Thanks very much sir 🙏.

[@pawelklosinski]

Thank you very much for detailed explanation. Is this for both desktop motherboards and laptops? Is PBTN.OUT a voltage drop from 3.3V to 0V when the button is pressed? I work on a motherboard where it is only 0.8V when not pressed (it drops to 0 when pressed). I think this is not correct but all the voltages supplied to Superio seem to be present, I'm puzzled....

[@newtamiltech7940]

Good ❣️❣️❣️

[@FixTronics]

Thanks brother

[@SVR_Properties]

Nice Explain

[@happy-gz9vp]

Good

[@RR310_Rider16]

sir please we need video like this every week..please..this video is not informative one step above this is wealth for those who tries to understand and learning motherboard repair..thanks a lot for this amazing educational content

[@FixTronics]

I will try to do my best brother Thank you for your support

[@kossieseii85]

I just stumbled upon this channel and I’m loving the information plus the length of the videos.💡💡💡

[@computerprinterclinic2798]

thanks amillion Brother

[@glazyrap9244]

you are the best mannnnn

[@mand6029]

You explained it extremely well

[@FixTronics]

Thank you so much

[@AK-ig3ko]

👏👏👏👏👏👏👏👏👏👏👏👏

[@rawadib4727]

thank you sir but can tell me for bios supply when get power after press power or after and from ldo or not some explanetion pls

[@Bee_world1]

Thank u my friend

[@FixTronics]

U R welcome brother

[@antoinemerlot4346]

hello, can you explain how to measure the important signals on a multimeter or oscilloscope for each signal explained (on youtube there's a lot of theory and little practice)? thanks in advance. From france

[@pjzz2000]

Really excellent, informative and clearly explained video. Thanks! Question: are signals transient, or do they remain and can be detected with a multimeter? Like high and low? Or a signal turns high for a short period and then reverts to low once the signal is passed and acknowledged?

[@onetimelifebigcamera1607]

Thanks need more videos logic level sir ❤

[@FixTronics]

U R welcome brother

[@chanakanamal1161]

Thank You... Sir.

[@abihabeeb5758]

It's amazing thank you

[@teammadiskarte3921]

it is siganl is always present?

[@laptopDoctorKZN]

He My great teacher... ec on signal not produced.. what would I need to check. 1. Replace ec 2. Reprogram ec 10th gen laptop

[@FixTronics]

Hi brother First check the 3.3v ldo at the EC chip If it is there try reprogramming it befor you decide to replace it.. and is worth checking the EC ON line for short circuit to GND...

[@fayrose3797]

Thank yu very very mutch Brother..

[@FixTronics]

U R welcome brother

[@zidnyyasrah9003]

what if i have the PLT_RST# but the display still not showing?

[@FixTronics]

You may have an issue with the screen connector and or the screen itself

[@aykutyalcn5025]

thank you sir.

[@harounsahnoun]

Can you explain how to measure these signals with a multimeter

[@laptopDoctorKZN]

It will be a voldtage normally.. 3v is High or 0 v Low Pulled up 0v->3v Pulled down 3v->0v Trigger up 0v->3v-0v over mll seconds Trigger down 3v ->>0v->>>3v over mil seconds

[@laptopDoctorKZN]

Please make a video of how to check the kbc..

[@medjaabderrazek4407]

Thank you, sir, for this beautiful explanation, but how do we know that the signal is missing?

[@FixTronics]

U R welcome brother You need to follow the power up sequence and check for each signal whether it is present or not

[@jsonbraga9700]

Sir please do a video on how to use oscilloscope in laptop repairing..thank you!godbless

[@FixTronics]

I will try to do that as soon as I can Thank you so much brother

[@marcellizna2974]

Where is vr on for vrm

[@gboyabraham568]

Wrre can will locate the ldo

[@FixTronics]

Its the 3 and 5 VALW power supply chip This chip will generate the 3v LDO directly after it receives the adapter 19v and then it will produce the 3VALW and 5VALW when it receives the enable signals at the ENTRIP1 and 2 pins from the EC Chip

[@abihabeeb5758]

Could you please make class how to fix signal missing on board? . Thank you sir 😊

[@FixTronics]

U R welcome brother I will so such a video in near future Thank you so much