Thank you Sir for your explanation. Please which component is causing a switching sound and which type of zener you'll use to replace the Defective one Thnaks a lot
it is due to transformer and the EMI Suppression ferrite beads / Anti Parasitic Ferrite Beads EMI Rings (installed on the mosfet pins) i will replace c27 (27 volt zener) and 24 volt zener 1 watt and 1 SCR upto 10 ampere. when i will arrange these parts, i will share its installation, diagram and testing
@@HaseebElectronics Resp Sir! Thank U Very much for Ur Advice Sir. C27 Volt Zeener, 24V Zeener 1Watt & One SCR Upto 10ampere Here were not there in the Shopes Sir. Please arrange Sir and C3866 FETs 12 Numbers Required for Other SMPSs Sir. How to Pay Amount Sir through Ponepay or SBI Yono Sir. Extreamely Sory for U Disturbance Sir. Iam Very Hill Mounts Areas Sir. -- ChinnaRao, Paderu, Visakhapatnam Dist. Andhrapradesh.
brother I am in Jordan, components here in Jordan are much expensive due to high exchange rate of Jordanian Dinar. moreover the shipping charges are too high I will check tomorrow and will reply. because to send or receive any electronics parts and items needs a special customs approval. I will check. if it will easy and economic I will send if the shipping charges are much high then I will not recommend to purchase components from this country
best regards to conceal the designs and to protect the designs from weather effect, the circuits are coated. silicon coatings are removable but epoxy coatings are hard to demolish
currently i don't have SCR and 27V zeners, i will arrange these parts and will share in upcoming video. because it iis protection circuit. so power supply turned ON without this output protection circuit
Hi, haseeb, I have a question here, when troubleshooting such motherboard and u find out that, one of resistor burns black and no visible colour code on it and there is no value printed on motherboard. So how how will u replace the resistor?
in this situation we need to download the datasheet, application note, sample circuit or typical application circuit for that main component or IC. so we can get a very closer value for that burnt out component. otherwise it needs a detailed and too much time consuming reverse engineering to recalculate the all components to find the burnt out component value
I'm cheap. I used my hand sterilizer alcohol/gel to remove the flux, then washed off the leftovers with water. Worked great. LOL I had to replace 7 bad electrolytic capacitors in my Lenovo ThinkCentre m58p computer PSU. One bad cap in particular was causing the computer to be stuck in boot looping status. The rest of the bad caps were bulging at the top and thus needed to be replaced. So that was about $9.53 to fix the PSU.
Thank you for your clear and detail explanation, please can you make a video on how to use Test lamp and what each sign of the test lamp means, this will help me in proper diagnoses
You are really helping us here tackling power electronics.. my question here is I usually design smps solar inverter but anytime i power on the inverter its working smooth but the high side MOSFET usually heat up at a very high temperature and get blown while the low side MOSFET is cool i am using tl494 ic my transformer calculations are correct which i got here from you but still i don't knw how tackle this issue pls can you help me.. What might be the issue i only find this issue when building high frequency push pull inverter. Pls help me out this is the 8th times am trying this but same problem pls help me. ?
Sir is possible to build our own smps power supply for amplifier which has stable out put of +15v and -15v , +35v and -35v if is yes please share us video thanks
yes it is doable, just we need to calculate and design the smps transformer and then design the circuit. the transformer must meet the power requirements and the circuit must be capable to drive that transformer. a properly calculated feedback network will provide regulation its complete calculation and design is a very lengthy project i will try to check if i can find some design sample. i will share it
nice job i am fixing a macbook 85w adapter. it seems that the opticoupler is bad not giving the proper ratio. thanks! how do you find out the value of a resistor if it is completely burned off the color bars. do you trace the resistor to the ic and look at the sample circuit?
Salamun alaykum, I have tested a kettle resistor with 60w serias lamp, The lamp lighted but the resistor not heated. Without seies lamp i've tried it, andI saw resistor was working. What is the reason of that ?
the series lamp is 60 watt or 100 watt. and the kettle resistance is 1500-2000 watt. so lamp will glow full, because the lamp have more resistance than the kettle resistance. if we see the voltage drop across the two resistors in series, then the kettle resistance is much low than the lamp resistance, in result the kettle resistance will not get more voltage to produce enough wattage
Thank you very much. I would like to ask you gratfully if you can make a video about a pc desktop , step by step from 5v stand-by to the output 3.3v until reaching the microprocessor and describing successively all the components. Sincerely
Resp Sir! Excellent Video Sir. Sir Dell Optiplex 3020, 180Watt 6&4Pin SMPS PS On 5V Ok Sir, but 12V Directed Pass on Sir. Green & Black Connected after PG 5V Paased Sir, only 12V was Directed Sir and Series Lamp was on off on off Continued Sir, New Fets was chaned Sir and near 12V to 12V small Bulb was Connected this Glowing on off on off, Which Problem Sir. Please Advise Sir. -- ChinnaRao, Paderu, Visakhapatnam Dist, Andhra Pradesh.
sir thank you for good videos sir i have question how to find smps weather it is 24 or 12 or 44v how to confirm it some times it shows 24v instead of 15v or 12v
What was the root cause of this fault . Was it an optocoupler failure initially that then caused a fault in the output side which then caused a fault on the primary side ?
i think that its root cause is optocoupler, which caused to increase voltage at vcc pin of the IC, and it switched a long time, which gave high spikes strokes on output side, and it made damage in secondary side as well
Sir how can we generate igbt gate drive pulses for 6igbt to run bldc compressor And how can we arrange all components step by step to make a circuit of bldc compressor running Sir i humble request you to reply my question please
okay if you want to send. you can send by courier. please send a message on my WhatsApp and I will give you the postal address and you can send my WhatsApp is 00962791161084
@@HaseebElectronics Thank you master. Additionally In secondary side 1000 micro 50v cap become hot. I checked every thing around that but I don't find shorty. There are not output voltages to the main board. Filament of the test lamp is glowing on off on off... with tick tack sound in smps.
1 second ago 1 it is impossible to include a low-frequency diode 1N4007 in a circuit with frequencies above 1 kHz! only ultrafast FR107 (HER107) diodes need to be installed there 2 it is impossible to connect the power supply to the mains without making sure that the parts of the COLD side are working properly and that the feedback is working correctly, only after checking the serviceability of the feedback circuits can you try to supply power from the mains - otherwise there is a huge probability of completely burning such a unit. OVERVOLTAGE protection power supply ON KEY DIODES AND CAPACITORS Tip in case of any problems with the hot part, replace the optocoupler with a PC817 (yt is even worth checking the old one - ALWAYS CHANGE) the same applies to the PWM power supply capacitor
Guess I missed something. You checked the output and said no voltage - but there was a reading on the meter. Then you tested the DC cap and said it's 'safe', but there was 124~ volts showing?
Thank you Sir for your explanation. Please which component is causing a switching sound and which type of zener you'll use to replace the Defective one
Thnaks a lot
it is due to transformer and the EMI Suppression ferrite beads / Anti Parasitic Ferrite Beads EMI Rings (installed on the mosfet pins)
i will replace c27 (27 volt zener) and 24 volt zener 1 watt and 1 SCR upto 10 ampere.
when i will arrange these parts, i will share its installation, diagram and testing
@@HaseebElectronics is SCR a transistor
SCR IS silicon controlled rectifier
it is used for protection
@@HaseebElectronics Resp Sir! Thank U Very much for Ur Advice Sir. C27 Volt Zeener, 24V Zeener 1Watt & One SCR Upto 10ampere Here were not there in the Shopes Sir. Please arrange Sir and C3866 FETs 12 Numbers Required for Other SMPSs Sir. How to Pay Amount Sir through Ponepay or SBI Yono Sir. Extreamely Sory for U Disturbance Sir. Iam Very Hill Mounts Areas Sir. -- ChinnaRao, Paderu, Visakhapatnam Dist. Andhrapradesh.
brother I am in Jordan, components here in Jordan are much expensive due to high exchange rate of Jordanian Dinar.
moreover the shipping charges are too high
I will check tomorrow and will reply. because to send or receive any electronics parts and items needs a special customs approval.
I will check. if it will easy and economic
I will send
if the shipping charges are much high
then I will not recommend to purchase components from this country
This channel is very helpful to many. God bless
best regards
Master of power supply circuit
Thanks 🙏👍👍
best regards
You are great sir
Very useful video
This is a lesson for us
Keep sharing
best regards
It's good that this SMPS was repairable. So many these days have components encapsulated in tar, making it impossible to repair.
best regards
to conceal the designs and to protect the designs from weather effect, the circuits are coated.
silicon coatings are removable but epoxy coatings are hard to demolish
Excellent repair.i love the close up video.very clear explanation.
best regards
it is my pleasure
The Genius Teacher Stay Blessed Dear Respected Brother!
Allah aap ko salaamat rakhey aameen
Very good and useful information sir thanks for sharing this knowledge to us
it is my pleasure
Thank you very much for this repairing video Sir Haseeb
You are welcome
Informative vedeo. Thanku so much.
best regards and special thanks
Awesome upload dear friend, have a happy Sunday 😊
best regards dear friend
great video dear haseeb sir. thank you for sharing with us. you are a true teacher :)
thanks a lot dear brother
great teacher ❤❤❤❤
Love your channel bud. Explaining everything is so helpful to me. THANK YOU.
it is my pleasure
thank you sir for sharing this informative video .
it is my pleasure
Sir,oh my God, this much components failed,then, why? You tried thebest😊
Walikum Salaam Janab bhai Saab
thanks a lot
ကောင်ပါတယ်ဆရာရယ်
ကျေဇူတင်ပါတယ်👍
Informative video. thanks sir
best regards
Thank you for your great videos, keep growing, and keep continue........
So nice of you
This video is very educational and interesting.
it is my pleasure
Thank you M. Hasseb, model of your Iron soder please
best regards
it is WELLER WR3M EST safe rework station
made in Germany
Well done Haseeb 👍
most welcome
Great info....many thanks, sir.
best regards
Allah bless you brother excellent work 👍
Many many thanks
Thank you very much sir 🙏🙏🙏
most welcome
Good video sir👌👌👌
best regards dear brother
Thank you for taking the time and sharing with us your knowledge.
it is my pleasure
@@HaseebElectronics Hello Mr Haseeb. I liked your solder/desolder tool. Is it possible to tell me the model to see If I can find it. Thank you.
it is weller WR3M rework station
bit.ly/3ZGDjn1
@@HaseebElectronics Thank you very much. I appreciate it.
Hello sir in this video did you replace Scr ????
currently i don't have SCR and 27V zeners, i will arrange these parts and will share in upcoming video. because it iis protection circuit. so power supply turned ON without this output protection circuit
Weldon keep sharing
thanks a lot
thanks for very informative video
بارك الله فيك ونفع بك
Hi, haseeb, I have a question here, when troubleshooting such motherboard and u find out that, one of resistor burns black and no visible colour code on it and there is no value printed on motherboard. So how how will u replace the resistor?
in this situation we need to download the datasheet, application note, sample circuit or typical application circuit for that main component or IC. so we can get a very closer value for that burnt out component.
otherwise it needs a detailed and too much time consuming reverse engineering to recalculate the all components to find the burnt out component value
@@HaseebElectronics thanks sir, and keep up with great work! You helping other as well learnt troubleshooting techniques cheers
Thank you for sharing your knowledge, may allah swt rewards you
Today you get new subscription and follower 😊
Thanks and welcome
Master Chief and professor wow that was so cool
best regards and special thanks for your valuable comment
I'm cheap. I used my hand sterilizer alcohol/gel to remove the flux, then washed off the leftovers with water. Worked great. LOL I had to replace 7 bad electrolytic capacitors in my Lenovo ThinkCentre m58p computer PSU. One bad cap in particular was causing the computer to be stuck in boot looping status. The rest of the bad caps were bulging at the top and thus needed to be replaced. So that was about $9.53 to fix the PSU.
Thank you for your clear and detail explanation, please can you make a video on how to use Test lamp and what each sign of the test lamp means, this will help me in proper diagnoses
Walekum Àssalam
Great upload
best regards and special thanks
Thanks sir for sharing...
Most welcome
Aslmuailkum Bhai
wa alaikum salaam dear sister
Interesting 👍👋
best regards
Nice information sharing.
it is my pleasure
Thank you very much 🎉
You are really helping us here tackling power electronics.. my question here is I usually design smps solar inverter but anytime i power on the inverter its working smooth but the high side MOSFET usually heat up at a very high temperature and get blown while the low side MOSFET is cool i am using tl494 ic my transformer calculations are correct which i got here from you but still i don't knw how tackle this issue pls can you help me.. What might be the issue i only find this issue when building high frequency push pull inverter. Pls help me out this is the 8th times am trying this but same problem pls help me. ?
What is the role of Scr in this circuit? thanks for great videos 🙏
it is protection circuit, over voltage and over current protection to protect battery from all possible damages
@@HaseebElectronics 🙏🙏
Thanks for the video sir. Where do you get your datasheets?
Good video sir.. Thank you..
Most welcome
where can i download the schematic diagram to these circuits?
Thank once again great video
جزاك الله خيرا
thanks a lot dear brother
Great repair!
Super this time👌
best regards
👌👌👌👍
best regards
Sir is possible to build our own smps power supply for amplifier which has stable out put of +15v and -15v , +35v and -35v if is yes please share us video thanks
Can you tell me!!!
yes
it is doable, just we need to calculate and design the smps transformer and then design the circuit. the transformer must meet the power requirements and the circuit must be capable to drive that transformer. a properly calculated feedback network will provide regulation
its complete calculation and design is a very lengthy project
i will try to check if i can find some design sample. i will share it
Hello and thank you for sharing...please show us how did you build that desoldering vacuum machine ?
great sir.
it is my pleasure
It would be good to explain your desoldering solution
please check this video number 511
th-cam.com/video/pjBx7F-H0SE/w-d-xo.html
Dear Sir ....What is best Bulb wattage for use series to power up MPCS to check....I mean 100w or 40W
FYI: I am use 100w for repair like this..
nice job i am fixing a macbook 85w adapter. it seems that the opticoupler is bad not giving the proper ratio. thanks! how do you find out the value of a resistor if it is completely burned off the color bars. do you trace the resistor to the ic and look at the sample circuit?
Salamun alaykum, I have tested a kettle resistor with 60w serias lamp, The lamp lighted but the resistor not heated. Without seies lamp i've tried it, andI saw resistor was working. What is the reason of that ?
the series lamp is 60 watt or 100 watt. and the kettle resistance is 1500-2000 watt. so lamp will glow full, because the lamp have more resistance than the kettle resistance.
if we see the voltage drop across the two resistors in series, then the kettle resistance is much low than the lamp resistance, in result the kettle resistance will not get more voltage to produce enough wattage
Wonderful video. Thanks
Thank you very much.
I would like to ask you gratfully if you can make a video about a pc desktop , step by step from 5v stand-by to the output 3.3v until reaching the microprocessor and describing successively all the components.
Sincerely
Resp Sir! Excellent Video Sir. Sir Dell Optiplex 3020, 180Watt 6&4Pin SMPS PS On 5V Ok Sir, but 12V Directed Pass on Sir. Green & Black Connected after PG 5V Paased Sir, only 12V was Directed Sir and Series Lamp was on off on off Continued Sir, New Fets was chaned Sir and near 12V to 12V small Bulb was Connected this Glowing on off on off, Which Problem Sir. Please Advise Sir. -- ChinnaRao, Paderu, Visakhapatnam Dist, Andhra Pradesh.
Sir,that is a unique desoldering tool,where you got it?👍👌
thanks a lot
it is WELLER WR3M rework station
you can purchase online from Amazon
www.amazon.ca/Weller-WR3000M-Digital-Self-Contained-3-Function/dp/B0019V5PSQ
Mr Haseeb. What is the model of the solder/desolder you are using? Thank you.
yes it is WELLER WR3M rework station
bit.ly/3ZGDjn1
Wanna ask about your avo,brand is aneng right?what type?
Its support freq hz and duty % ?
it is Aneng Q1, yes it is good response in frequency and duty cycle
th-cam.com/video/HoOR26t45Zs/w-d-xo.html
@@HaseebElectronics thank you for reply,and may Alloh protect you..amiin
Your brother from indonesia
@@HaseebElectronics how if about compare vs aneng 620A?what do you prefer?
which soldering iron you are using to remove components from pcb, iron with desolder pump ? where it is available
i am using WELLER WR3M rework station. it is avaiable on amazon, indiamart. and many other online sellers
soldering iron is TC201 WELLER
How can I test for faulty IC
جزاک اللہ خیراً کثیرا۔ 28-01-23
Thanks a lot dear brother
sir thank you for good videos sir i have question how to find smps weather it is 24 or 12 or 44v how to confirm it some times it shows 24v instead of 15v or 12v
I think first optocoupler is failed, then scr and zener, which rise in current in switching ic and fry it.
yes
i think optocoupler failure is the root cause of all this situation
What was the root cause of this fault . Was it an optocoupler failure initially that then caused a fault in the output side which then caused a fault on the primary side ?
i think that its root cause is optocoupler, which caused to increase voltage at vcc pin of the IC, and it switched a long time, which gave high spikes strokes on output side, and it made damage in secondary side as well
💯👍
best regards
Where did you buy your de-soldering iron. If it's a DIY product can you make a video please.
wow really great
best regards
Sir how can we generate igbt gate drive pulses for 6igbt to run bldc compressor
And how can we arrange all components step by step to make a circuit of bldc compressor running
Sir i humble request you to reply my question please
amazing video.
it is my pleasure
Sir what is scr, and what was number of that scr
best regards
How do you find the burnt out components value or ic no. Please share
I have damaged smps I want to send to you to do a repair video. Has some burning!
okay if you want to send. you can send by courier. please send a message on my WhatsApp and I will give you the postal address and you can send
my WhatsApp is 00962791161084
👍
best regards
Hi Haseeb. I would like to buy a similar desoldering equipment to yours. Kindly advise on cost.
Thank you
so nice of you
At video's 3.04 minutes, what was soldering or desoldering machine ?? was nice
share details of that desoldeing m/c
I like that solder remover, where can I get one?
Sir, from where you buy your desoldering tool..?
Nice sir🔉🔉📢📢💪💪💪
Bro Haseeb In Snubber Ciruit Diode Should Be A Fast Recovery Diode,Instead Of Normal 1N4007 Diode.💚🇮🇳💐🤲
Hi, how did you make this disoldering iron?
it is Weller wr3m rework station
Hello Mr Haseeb. What is the reason hearing "ticking noise" from smps? Thank you so much
possible reasons. its switching frequency is out of limit either low or high
separated core halves
@@HaseebElectronics Thank you master. Additionally In secondary side 1000 micro 50v cap become hot. I checked every thing around that but I don't find shorty. There are not output voltages to the main board. Filament of the test lamp is glowing on off on off... with tick tack sound in smps.
Nice sharing
It's great.
it is my pleasure
1 second ago
1 it is impossible to include a low-frequency diode 1N4007 in a circuit with frequencies above 1 kHz! only ultrafast FR107 (HER107) diodes need to be installed there
2 it is impossible to connect the power supply to the mains without making sure that the parts of the COLD side are working properly and that the feedback is working correctly, only after checking the serviceability of the feedback circuits can you try to supply power from the mains - otherwise there is a huge probability of completely burning such a unit. OVERVOLTAGE protection power supply ON KEY DIODES AND CAPACITORS
Tip in case of any problems with the hot part, replace the optocoupler with a PC817 (yt is even worth checking the old one - ALWAYS CHANGE) the same applies to the PWM power supply capacitor
Guess I missed something. You checked the output and said no voltage - but there was a reading on the meter. Then you tested the DC cap and said it's 'safe', but there was 124~ volts showing?
It was having 123 mV only and its DC not AC
How u creat the dissoldering(sucker) with soldering iron bro?
it is WELLER WR3M rework station
Very good video .
Thank you Sir. What if the Zener diode is shorted and the part number is no longer visible, how do go about this? thank you
Buenas tardes, saludos! 👋🏻 De cuánto es el bombillo de la lámpara série?? Para éste tipo de reparación
Well troubleshouting
Hope your country's national team wins in Australia
I wish
but I am millions Mileas away from cricket. because personally I don't like this game
I love football and hockey
👋👋🇫🇷👋👋
What should the feed bad back voltage in octocoupler in perfect conditionplease