I absolutely enjoyed this video, I'm a 68 year or newbie with near zero knowledge of electronics and yet I followed this video all the way to the end which is a testament to your ability to teach . well done.
Bravo, a typical troubleshooting section when you know what you are doing. Problem is, a lot of techs just don't have the vast knowledge to know what they are doing and they shotgun their approach until they luck up on the defective part(s), if at all. I like troubleshooting circuits. It is like a mystery story as to who done it! Thumbs Up!
Tum videolariniz gibi bu videonuzda akici ve ogretici hocam .yorumlar kisminda pakistanli oldugunuzu okudum.ben sizi katar yada suidi oldugunuzu tahmin ediyordum.hic. farketmez sizin gibi bilge ,mesleginde cok iyi olan insanlari izlemek ne guzel.Turkiyeden selamlar ( essessellemun aleykum.verahmetulla)
Ve aleyküm selam sevgili kardeşim. temelde Pakistanlıyım ve şimdi Ürdün'deyim. Mühendislik hayatımdan edindiğimiz tecrübelerimi paylaşıyorum, belki izleyenlerime bir miktar bilgi sağlayabilir. en iyi dileklerimle ve tatlı selamlar kardeşin Muhammed Eşref
Assaamualaikum wr.wb....Saya dari Indonesia selalu siap menonton tutorial dari anda..sangat bermanfaat ilmu yg anda sampaikan...sukses selalu ya buat anda...semoga berkah segalanya ..Amin...!!❤❤❤
Excellent video. I enjoy your repair techniques. Do you do any repairs on Crt tvs? Specifically no high voltage from the horizontal drive section is what I would like to learn more about.
Vrey well done. You first checked the voltage across the two large filter capacitors. How would you proceed if the voltage is not symmetrical across theese? (Zero volts on one of them)
Hi, great work you have done! Do you have fixed some SMPS with the oscillator 1200P60? Could you please explain How does it compare with the family 3843? Are they interchangeable? Thanks a lot and have a nice day. Regards.
Brother i am sorry to ask question out of your topic but maybe u are the right person to ask....wht is the use of impedance sel. at the back of my Sony amplifier thnks a lot Bro for ur time .
Great video also have great tricks My question is about PWM controllers have some protect features (for example over voltage Protection etc) How understand pwm controller's in protect mode ? Because not working power supply and all other components looking normal. For example how can make "Troubleshooting board for IC" * We can try extarnal power supply voltage for PWM controller * We can apply suitable frequency and wave to need IC pin/pins for find problem Could you make a video for a famous PWM controller's "How understand PWM controller's protect mode"
Thank you very much Sir for your valuable information. Sir in this ckt Opto coupler is not used then how the feed back is working to control the output
it is secondary side pwm controller. it uses direct sense line to the PWM controller voltage mode error amplifier. it uses pulse transformer to drive the power driver stage, so pulse transformer provides isolation
This is honestly something you could google 1. MOSFET's are Transistors 2. Transistors have 2 main functions to be a switch to be an amplifier (they have forward gain) Look at the datasheet 3. Transistor pins are BASE, COLLECTOR, EMITTER 4. MOSFET's and JFET's Pins are SOURCE, GATE , DRAIN Here is how to test them ruclips.net/video/2IkAPU9X33k/видео.html
Can you make a video on making one smps dc power supply with every details and breakdown, and items used and where to purchase. A video no one ever made, a class no university ever taught. Thanks
welcome brother first of all i am thankful for your valuable comment second thing. that a power supply design is complete science and it needs a very long, deep and interconnected to each other calculations. so it is really near to impossible to cover this topic in one video. because each step, each component. each parameter needs scientific calculations, so it will much difficult to do it. i will recommend that if you study Pressman's (book name Switching Power Supply Design fourth edition) it is perfect
@@HaseebElectronics Thank you for the suggestion. I would also request that you can make a video on the solar charge controller. That could be a new and demanding topic in recent world electricity shortage cases.
Good night sir I have a few questions the diodes or they connected to emitter and collector and what what or the amperage ratio of the diodes because I want to ad Shockley diodes to my emitter and collector for spike reduction so I want to know if a 1 amp Shockley diodes can withstand the incoming high current of of 200amp to collect so but I can’t find a small diodes the can handle that much current so I want to know if the 1 amp is ok I don’t want to blow up my circuit to find out
Dear brother, thanks for your great explanation and informative videos. I have a 24V SMPS that gives fluctuating output between 4-7 volts and it uses TL494, I check VCC and it was 7.3V, feedback is 5V & Ref is 5V. Pin 8 & 11 are fluctuating and the freq is not stable. What else shall I do to fix it? Your help is highly appreciated.
it is called "PULSE TRANSFORMER" or "SIGNAL TRANSFORMER". it takes drive from the SMPS IC, because the smps ic is in secondary side. so this transformer provides isolation between primary and secondary, and the power mosfets are in primary side (which drive the main transformer) in simple words, it transfers the drive signal from PWM ic to the mosfets
Aslkm. Saya lagi belajar. Alat nya semacam seperti pawer suplay. Mungkin kinerja nya sama yg seperti yg di konten itu. Tp ini pawer suplay yg ada di industrial pabrik di masuk in listrik langsung sort listrik
![I.N "HALLUCINATION" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/n5B5q1Hwt_U/mqdefault.jpg)
First RUclipsr he explains very well how to repair, you are good teacher
Thank you very much 🥰
You are welcome
I absolutely enjoyed this video, I'm a 68 year or newbie with near zero knowledge of electronics and yet I followed this video all the way to the end which is a testament to your ability to teach . well done.
Bravo, a typical troubleshooting section when you know what you are doing. Problem is, a lot of techs just don't have the vast knowledge to know what they are doing and they shotgun their approach until they luck up on the defective part(s), if at all. I like troubleshooting circuits. It is like a mystery story as to who done it! Thumbs Up!
جزاکم اللہ خیر
Sir Every time I think I need a teacher who teach me like this.
Tum videolariniz gibi bu videonuzda akici ve ogretici hocam .yorumlar kisminda pakistanli oldugunuzu okudum.ben sizi katar yada suidi oldugunuzu tahmin ediyordum.hic. farketmez sizin gibi bilge ,mesleginde cok iyi olan insanlari izlemek ne guzel.Turkiyeden selamlar ( essessellemun aleykum.verahmetulla)
Ve aleyküm selam sevgili kardeşim. temelde Pakistanlıyım ve şimdi Ürdün'deyim. Mühendislik hayatımdan edindiğimiz tecrübelerimi paylaşıyorum, belki izleyenlerime bir miktar bilgi sağlayabilir. en iyi dileklerimle ve tatlı selamlar
kardeşin Muhammed Eşref
Same problem and yes, i replace the transistor and resistor it work again. Thank you so much, you are great!
it is my pleasure
Assaamualaikum wr.wb....Saya dari Indonesia selalu siap menonton tutorial dari anda..sangat bermanfaat ilmu yg anda sampaikan...sukses selalu ya buat anda...semoga berkah segalanya ..Amin...!!❤❤❤
wa alaikum salaam, terima kasih banyak saudaraku. Allah memberkati Anda
They spared no expense with their use of heat sink compound! It probably won't fail anymore. Thanks and happy Monday!
best regards and special thanks for your valuable comment
Really Good, thanks for going through this and sharing your detailed experience of the layout and all the likely fault. Very helpful
You're very welcome!
Awesome job there buddy. Now I can dig out some of my failed power supplies and see what's wrong with them.
MashaAllah bhut zabrdast information Allah bless you and your family Amin
thanks a lot dear sister
Well done , engineer with the knowledge how powers supply work and your on faulting is very methodical. thankyou
Masha Allah... Very knowledgeable. very very good Teacher.. Salam from Germany.
MasyaAllah brother thank you
Your explanation helped me so much
Cheers from Indonesia
May Allah Bless you
AssLamualaikum Warahmatullah ibarahkhatuhu. Very good explanation and educative also. Jazakumulah KHAIR
wa alaikum salaam wa rahmatullah wa barakatohu
Brilliant troubleshooting. Love your videos. I watched so many of your videos is Awe, and learned so much. Thank you so much for posting these.
Thanks for watching!
Resp Sir! Excellent Class Dhanyavaadh Sir. -- ChinnaRao
THANKS BHAI JI
Sir Thank U Sir
Really helpful troubleshooting and explanation.....many thanks.
best regards
GOOD TICHING KARTE HO AP THANKS 👍👌👍👌👍👌👍
thanks a lot
very informative 👏👌
thanks a lot
Thank you very much sir 🙏🙏🙏
best regards
👍🙏.Sir, excellent . My congratulations.
Thanks and welcome
another excellent video😍
Thanks!
i am thankful for your valuable support
Very well done my friend, it is nice to watch your skilled work.
Hi , Your explanation of the lesson is very interesting and we enjoyed it ، which name and model of this desoldering you used please?
Thank you very much for the educational and interesting videos you make ❤❤
Excellent quality and educational video. BRAVO and thanks my dear friend.
best regards
Thank you for making such informative videos
Good morning sir very nice video good information thank you sir 🙏
Well explained. Can easily be understood. 👏👏
it is my pleasure
Informative vedeo. Thank u so much.
Thank you, sir. Very well explained.
Thank you again for your videos. Just maybe a slight correction resistor don't short circuit. I may be wrong of course
Güzel anlatım beğendim takipteyim dost Pakistan a selamlar
en iyi dileklerimle ve özel teşekkürler
Nice video and well educative. Are you living in Dubai?
Excellent video. I enjoy your repair techniques. Do you do any repairs on Crt tvs? Specifically no high voltage from the horizontal drive section is what I would like to learn more about.
Really great video... Keep it up brother
Thanks a lot 💕
Saved from land fill. Good video.
Vrey well done. You first checked the voltage across the two large filter capacitors. How would you proceed if the voltage is not symmetrical across theese? (Zero volts on one of them)
Very good and useful information sir thanks for sharing this knowledge to us
best regards
Nice easy to understand video
You are the baddest, thank you so much
Thanks a lot for feedback
Thank u for giving explanation
Great video.👏👏
best regards
Useful video 👍👏👋
best regards
Excellent thanks for sharing this informative video
THANKS A LOT
Hi, great work you have done! Do you have fixed some SMPS with the oscillator 1200P60? Could you please explain How does it compare with the family 3843? Are they interchangeable? Thanks a lot and have a nice day. Regards.
Thanks for sharing. Very insightful sir
Hello my friend. Thank you very much. What is the multi meter that you were using? Seems to be very nice one
best regards
it is Aneng Q1 multimeter
you can check video number 470 for more details
Thank you for beautiful knowledge sharing.
it is my pleasure
Brother i am sorry to ask question out of your topic but maybe u are the right person to ask....wht is the use of impedance sel. at the back of my Sony amplifier thnks a lot Bro for ur time .
Great video but a schematic would make it much easier to understand and visualize your troubleshooting steps.
Subha Ka Salaam Sir Jee
apni duaon mein yaad rakhein Zargar bhai
Great video also have great tricks
My question is about PWM controllers have some protect features (for example over voltage Protection etc)
How understand pwm controller's in protect mode ?
Because not working power supply and all other components looking normal.
For example how can make "Troubleshooting board for IC"
* We can try extarnal power supply voltage for PWM controller
* We can apply suitable frequency and wave to need IC pin/pins for find problem
Could you make a video for a famous PWM controller's "How understand PWM controller's protect mode"
Thank you so much for great informative video
great job ....... thanks
thanks a lot dear brother
Good tech skills.
Great information Thanks for sharing 👍
best regards
Great video....
thanks a lot
informative sharing
best regards
Hi sir namaskaar. This video is very informative.
Can we check the output of the ic TL 494 before replacing the transistors.
Thank you sir 🙏
yes we can
i will explain that we can check drive without transistors
Good video thank you !
Thank you very much
You are welcome
Very informative
Thanks a lot for your videos, I really interested in Electronic. And I also sent an email to you for a help.
5:55 Nice desoldering iron. Have you video about it?
best regards
it is WELLER WR3M
ruclips.net/video/pjBx7F-H0SE/видео.html
Thank you so much.
Great video
thanks a lot
Thank you very much Sir for your valuable information. Sir in this ckt Opto coupler is not used then how the feed back is working to control the output
it is secondary side pwm controller. it uses direct sense line to the PWM controller voltage mode error amplifier. it uses pulse transformer to drive the power driver stage, so pulse transformer provides isolation
very good video hallo from mexico
most welcome and special thanks for your encouraging feedback
Uso subtitulos al español,proscatinador en el ingles, pero te entiendo de todas maneras. Me gustan tus videos. gracias compañero.
Buenos días. Estoy agradecido por tu hermoso comentario. mantente bendecido y que tengas un buen día
Thank you sir
best regards
I need a desoldering iron as like your. How can i got it?
I am from Bangladesh
it is WELLER WR3M rework station. you can purchase Online
Nice video👍
best regards
Hello, thank you please make a video on how to differential between transistor and MOSFET and how to test each of them with multimeter. Thanks
This is honestly something you could google
1. MOSFET's are Transistors
2. Transistors have 2 main functions
to be a switch
to be an amplifier (they have forward gain) Look at the datasheet
3. Transistor pins are BASE, COLLECTOR, EMITTER
4. MOSFET's and JFET's Pins are SOURCE, GATE , DRAIN
Here is how to test them
ruclips.net/video/2IkAPU9X33k/видео.html
Can you make a video on making one smps dc power supply with every details and breakdown, and items used and where to purchase. A video no one ever made, a class no university ever taught. Thanks
it is not easy thats why... and involves high lethal voltages.. better buy one
welcome brother
first of all i am thankful for your valuable comment
second thing. that a power supply design is complete science and it needs a very long, deep and interconnected to each other calculations.
so it is really near to impossible to cover this topic in one video. because each step, each component. each parameter needs scientific calculations, so it will much difficult to do it.
i will recommend that if you study Pressman's (book name Switching Power Supply Design fourth edition)
it is perfect
@Theseus you are right.
@@HaseebElectronics Thank you for the suggestion. I would also request that you can make a video on the solar charge controller. That could be a new and demanding topic in recent world electricity shortage cases.
Good very good thanks
it is my pleasure
Good night sir I have a few questions the diodes or they connected to emitter and collector and what what or the amperage ratio of the diodes because I want to ad Shockley diodes to my emitter and collector for spike reduction so I want to know if a 1 amp Shockley diodes can withstand the incoming high current of of 200amp to collect so but I can’t find a small diodes the can handle that much current so I want to know if the 1 amp is ok I don’t want to blow up my circuit to find out
Shukran jazakallah
most welcome
🧿Turkiyeden selamlar 🙋♂️
Hey is oky to test transistor in circuit?
Waren de npn transistors geheel defect of maten ze slecht?
Always check the base voltage, before replacing the transistor.
Please make of soldering removing tool which u are using
Or link to buy amazon or aliexpress
Where to buy this type desoldering iron as u own??
it is available online
its model number is WELLER WR3M rework station
made in germany
Dear brother, thanks for your great explanation and informative videos. I have a 24V SMPS that gives fluctuating output between 4-7 volts and it uses TL494, I check VCC and it was 7.3V, feedback is 5V & Ref is 5V. Pin 8 & 11 are fluctuating and the freq is not stable. What else shall I do to fix it? Your help is highly appreciated.
Seek for shorted componentd in the cold side.
ruclips.net/video/YbUftLuvODg/видео.html
How do you check a resistor in diode mode sir? Asalam aleikh
Sir, please make video on designing of 60-0-60 DC to DC convertor..
Merhaba,bir sorum olacaktı,st13007,TL 494,c1815 transistörleri değiştirdim.Kapasitorleri,dirençleri,diyot,zener diyotleri ölçtüm hepsi sağlam.Fakat büyük smps trafosu gürültü yapiyor.Cikistan 7Volt alıyorum.Arizanin nerden kaynaklı olduğunu yazabilir misiniz, teşekkür ederim.
👏👏👏👍
Useful video
Thanks a lot
Masha Allah teache
thanks a lot
Sir 3d13009 and small 13009 me defference kya hai? Can I use small where big use?
السلام عليكم
My friend thanks for your work
I want to explain how we can enabled Ac PCB inverter If they are separated
Power PCB and inverter pcb
Obrigado amigo muito bom seus vídeos tô aprendendo muito
Hello my input ac is 210 and diotes in front of transistors are 100v and 180v . where i need to check ?
Thanks for sharing
it is my pleasure
Just curious, what is the smaller transformer for?
it is called "PULSE TRANSFORMER" or "SIGNAL TRANSFORMER". it takes drive from the SMPS IC, because the smps ic is in secondary side. so this transformer provides isolation between primary and secondary, and the power mosfets are in primary side (which drive the main transformer)
in simple words, it transfers the drive signal from PWM ic to the mosfets
Aslkm. Saya lagi belajar. Alat nya semacam seperti pawer suplay. Mungkin kinerja nya sama yg seperti yg di konten itu. Tp ini pawer suplay yg ada di industrial pabrik di masuk in listrik langsung sort listrik