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
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
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
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!!!!
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 :)
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?
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....
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
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...
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
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
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
nice explain please give us more of this field .. thank u
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
I just watched this again. This is very informative. Very detailed and simplified, Thanks a million brother.
Thank you so much brother
Thanks very much sir 🙏.
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
I will try to do my best brother
Thank you for your support
I just stumbled upon this channel and I’m loving the information plus the length of the videos.💡💡💡
Thank you brother. Always learning something new.
Again, very nice work. Thank you.
You welcome brother
that was a good explanation regarding on laptop signals.. keep it up bro..
Thank you brother , very informative
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!!!!
Thank you brother , very informative , tracking signal is very hard .
U R welcome brother
very informative thank you
Very very very niiiiice u r proff man thank u man
Very Helpful!! Keep Going !!
Thank you Sir, very informative
Muito bom!! 👏👏.
Good
Very helpfull, thank u..
👏👏👏👏👏👏👏👏👏👏👏👏
you are the best mannnnn
It's amazing thank you
thanks amillion Brother
Really Really helpful videos, I really don't think anyone is giving this kind of info on you tube right now, thank you....
U R welcome brother
I am glad you liked my content
😊⚘
Thank you friend
I really appreciate your valuable comments
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 :)
Nice Explain
Thank You... Sir.
We must memorising all those signals in-order to troubleshoot laptop ? 😁
thank you sir.
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?
Thanks need more videos logic level sir ❤
U R welcome brother
Thank yu very very mutch Brother..
U R welcome brother
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....
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
Thank u my friend
U R welcome brother
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
He My great teacher... ec on signal not produced.. what would I need to check.
1. Replace ec
2. Reprogram ec
10th gen laptop
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...
Please make a video of how to check the kbc..
it is siganl is always present?
Sir please do a video on how to use oscilloscope in laptop repairing..thank you!godbless
I will try to do that as soon as I can
Thank you so much brother
Thank you, sir, for this beautiful explanation, but how do we know that the signal is missing?
U R welcome brother
You need to follow the power up sequence and check for each signal whether it is present or not
Where is vr on for vrm
Can you explain how to measure these signals with a multimeter
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
what if i have the PLT_RST# but the display still not showing?
You may have an issue with the screen connector and or the screen itself
Wrre can will locate the ldo
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
Could you please make class how to fix signal missing on board? . Thank you sir 😊
U R welcome brother
I will so such a video in near future
Thank you so much