24 Volt 480W SMPS Power Supply Repair - Step By Step

Aslamoalakum gee Sir kesy Hein sir gee AP ki akser vedio dekhta rehta hun sir ye laptop ke 19volt hoty hein plaz sir in ko amplifier ke leay 20+ 0-20 ya25+0-25. Volt kesy Le sakty hein plzzz sir koi vedio bna kar help Karen jazakomullah

मेनेपालसे हे

ob2273 koi alternative?

all good except the fuses aproach

Nice video bro,
Adjustable pcb holder how much bro?

Hopefully open circuit and under rated load voltage was confirmed

you do not need or want thermal compound when you have silicone insulator pads,that makes heat transfer worse. and paralleling fuses? No. get the right fuse.

Super😊😊😊

You can not make an 8A fuse from putting two 4A fuses parallel . Theory is one thing, in practice it will not work properly.

noe you vsll it goof,
whats going on

the meter never settles on a reading and you jump to another conclusion
.stop and let the meter settle down on a reading
before zipping jumping skipping away.

THANK U FOR THE VIDEO SIR . IAM WARUNA FROM SRILANKA , SIR CAN U PLZ SHOW WTZ THE IC REMOVAL TOOL THAT U USE IN THE VIDEO , AND ALSO WTZ THE PCB HOLDER U USE IN THE VIDEO WHERE CAN WE BUY IT

Thanks, I have a question. I have a solar panel converter and the led isn’t going on. Can you explain how can I do a checkup of the unit and replace defaults component ? Thanks in advance.

Holy Indian movie...
Where do I even start?
Thermal paste + thermal pad?
Fuses in parallel?
Randomly removing components?
100W lightbulb with a huge inrush current?

Does an 8 amp fuse make sense? I'd use a 5 amp if powering from US 120 vac and a 3 amp if powering it with 220vac. 8 amps @ 220 is 1920 watts!

hi nice video,what about the resistor 680ohm,which is 1..1ohm when measured.
whats the white paste you rub on the transistor?thank you

480watts @ even 200Vac = 3A @80% efficiency

Since it was made to run on both 110v and 220v..

at 80% efficiency with 8A fuse, the lowest possible voltage will be 75Vac..

Conclusion:
This much supply deviation is only seen in china..
this was probably made in china

I added a nail with the ends cut off that just fitted the opening of the screw and glued it in. I left a little stick out so that it holds the slider in place better. I used a tap to clean up the screw bore and I used white lithium grease to lube the screw with. Works much better now. Great concept.

Never in any electrical engineering class I have heart two 4A fuse in parallel will make one 8A fuse.

can you provide me the circuit diagram

super excellent ,,greetings from dominican republic

sir may I know, what is the name of your 2n1 soldering iron with sucker, I want to buy like that.

/ / / / the BEAST doesnt really have all those vietes. .
/ / / / /yes america , is programming every one to accept the name THE BEAST and THE MARK like sams club . .
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its not even america/ /
america is just being ordered to do so by the MEGA-RICh
ONERS of countries.. . . . . . . .
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listing must shuffle or its not random. . /
/ if its not random , , its will always FOLLOW a psychological pattern. . because it was progarammed by psychological humans. . . who are always biased. . . .
especially teh ceo puppet and board of directors. .. who do so for moeny[AKA=politiacl word=bottomline]/. /// /
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So simple, easy explained, the most important you showed us how to test the parts with multimeter which most of the people dont even bother. Your video is so grate on so many levels! Gratings from Romania and I just subscribed

Nice Repair !!!!

👌👌👌👌

Very nice Vedio

I have one no 24v may be this could be transistor

Video is OK but explanations are week because of Fast speed.

My SMPS is providing voltage but unable to provide current under load. What may be the reason

Great video. I was able to fix mine exactly as you did (replaced power transistors and rectifiers). My first electronic repair :-)

Clearly presented. Excellent video. Although not simple unsoldering and resoldering

brother in my case transistors are completely blow how i know their number

how about auto off when I load a camera or radio is auto off can you help me sir

very good
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Could you give me advice . I have 24v Power source like you have in video. It gives 24v without load. But under load it gives only 3.6v.

😂you were having way to much fun with that motor at the end 😅

Please discharge the large capacitors if you have connected the power supply before touching anything on the other side of the pcb. Better safe than sorry.

You really have no idea what you are doing...

Nice😊

your video is very good and clear easy to reaper acording to what you been done .

thanks for tis vedio

I copy a 1000 watt forward converter and build it but i use ee4215 core which i double two together and i use two fgh60n60smd igbt which is rated for 120 amp pulse current and a gate drivers transformer that provide 7 amp peak but 1.5 amp continues current and gate voltage 18volt but i couldn't get 500watt from it even though all components was will over rated i was pulse 10 amp 131vdc but i couldn't get pass 480 watt the igbt blow and the igbt was not hot just warm the gate had protection ziner and subber to protection from volt spikes the gate current was stronge enough for fast charge and pnp for fast discharge everything what right but still blow over and volt at 500watt and the original 1000 watt had a smaller transformer and lower rate igbt but i couldn't 990watt from it even though the circuit i rebuild have far more better components can you explain why the more efficient parts can give 1000 watt. Ut lower rates can i even use the same transformer and i get lesser then 300watt and when i test the gate speed my circuit speed was faster keeping the igbt cool but the commercials one was very warm at zero load i dont understand my circuit was had biggest track for current flow and better gate driver

10/12/2016 – 10/03/2017
ታላቁ አምላካችን እግዝብሔር ምንም ጊዜ ቢሆን ከተገፉት፣ ከተበደሉት፣ ግፍ ከተፈጸመባቸው ጋር ነው፡፡ ያግዛቸዋል፤ ሀይልም ይሆናቸዋል፡፡ በአሸናፊነት በድል ያጎናጽፋቸዋል፡፡ በሌላም በኩል ከሴይጣን ጋር የሚተባበርና የሚመራ አወዳደቁ አያምርም፤ ፈጻሜውም የከፋ ይሆናል፡፡ በዚህ ምንም ጥርጥር የለም፡፡

አገረ እግዚአብሔር የሆነችውን ኢትዮጵያን የቅዱሳን መላዕክታት፣ ነቢያት፣ ሐዋርያት፣ የጻድቃን ሰማዕታት ጥበቃ፣ በረከትና ረድዔት አይለያት። አሜን!!! አሜን!!! አሜን!!!
. . . . . . . . .
የአሜርካ ዶላር ወይም ሌሎች የውጭ ምንዛሪዎችን በጨረታ እንዲሸጥ መደረጉ እጅግ የባሰና የከፋ አደጋ የሚያስከትል መሆኑን ከላይ ያሉ መሪዎች ለምን መገንዘብ ተሳናቸው???

በመሠረቱ አንድ ድርጅት ወይም አካል የሆነ ነገርን ለጨረታ የሚያቀርበው የተሸለ ዋጋ ለማግኝት በማሰብ ነው፡፡ በተለይም የአቅርቦት እጥረት ያለበትን ነገርን ለጨረታ ማቅረብ ዋናው ዓላማ የተሸለ ዋጋ ለማግኘት መሆኑን ለማንም ግልጽ ነው፡፡

ከዚህ ቀደም በወያኔ አገዛዝ ዘመን በቂ አቅርቦት ባለመኖሩ ምክንያት ከፍተኛ እጥረት ይስተዋልበት ከነበረው የፍጆታ ምርት አንዱ ስኳር ነበር፡፡ ይህ ፍላጎት ከፍተኛ የሆነ እና አቅርቦት ደግሞ በጣም አነስተኛ የሆነው ስኳር በአንድ ወቅት በየተወሰነ ጊዜ ለጨረታ ይቀርብ ነበር፡፡ ምንአልባት ይህ ይደረግ የነበረው ዋጋን ለማረጋጋት ምርቱን ለተጠቃሚው በፍትሐዊነት እንዲቀርብ ተብሎም ሊሆን ይችላል፡፡ ሆኖም ያስከተለው ግን በጣም የተገላቢጦሽ ውጤት የነበረ መሆኑን ለብዙዎቻችን አይዘነጋም፡፡ ለዚህም ማሳያ ቀደም ሲል አንድ ኪሎ ግራም ስኳር ከ20.00 (ሃያ) ብር በታች ነበረው ዋጋ በአጭር ጊዜ ውስጥ አርባ፣ ሃምሳ፣ … እያለ የአንድ ኪሎ ግራም ዋጋ ከአንድ መቶ ብር በላይ እንዲሆን አድርጎታል፡፡

ነገሩ እንዴት መሰላችሁ፤ የሚጫረቱት ትላልቅ አከፋፋይ ነጋዴዎች ናቸው፡፡ እነዚህ ነጋዴዎች ደግሞ በዚሁ ሸቀጥ የማከፋፈል ንግድ ላይ እየሰሩ እንደመገኘታቸው ቀደም ሲል የገዙት ስኳር ክምችት እንደሚኖራቸወ አይጠረጠርም፡፡ በየጊዜው ሲጫረቱም ቀደም ሲል ከነበረው ዋጋ እየጨመሩ ይገዛሉ፡፡ ምክንቱም የገዙትን ሲሸጡ ትርፋቸውን ጨምረው የሚሸጡ መሆኑ እና ቀደም ብለው ገዝተው ያከማቹትን ስኳር በከፍተኛ የትርፍ ዋጋ እንዲሸጡ ስለሚያስችላቸው፡፡

በቅርቡ ብሔራዊ ባንክ ባወጣው የዶላር ጨረታ አንድ ባንክ አንድ የአሜርካ ዶላርን ወደ አንድ መቶ ሰባት ብር በመግዛት አሸናፊ ስለመሆኑ በሚዲዎች ሰማሁኝ መሰለኝ፡፡ ነገር ግን ጨረታ ከመካሄዱ በፊት አንድ የአሜርካ ዶላር ወደ ዘጠና አራት ብር አካባቢ ነበር የሚገዛው፡፡ . . . አካሄዱ በጣም የሚያስደነግጥ እና የነዋሪዎችን ተስፋ በጣም የሚያጨልም መሆኑን ልብ ማለት ያስፈልጋል፡፡

አብዛኛውን ጊዜ በአገራችን የሚታየው ነጻ ገብያ፣ ነጻ ህጋዊ የንግድ ስራ እንቅስቃሴ ሳይሆን … በነጻነት የንግድ እንቅስቃሴን በአድማ፣ በአሻጥር በመሳሰሉት ማካሄድ መሆኑን ልብ ልንልም ይገባል፡፡ . . .

 በክፉኛ ለታመመው የአገራችን ኢትዮጵያ ኢኮኖሚ በተለይም የቱሪዝም ኢንዱስትሪን ለማከም ከሚያስፈልጉ መድሃኒቶች ውስጥ ዋነኛው ከልብ የመነጨ እወነተኛ ሠላምን ማስፈን ነው፡፡ በአገሪቱ ሠላም ማስፈን ለኢኮኖሚ ብቻ ሣይሆን ለሕብረተሰቡ ጤና ክፍተኛ አስተዋጽዖ እንዳለው ልብ ልንል ይገባል፡፡ ሌላው ማለትም ፕሮፖጋንዳ፣ … ሁለተኛ እና ሶስተኛ ናቸው፡፡ . . .

 አገራችን ኢትዮጵያ በተፈጥሮ የታደለች ብትሆንም በተለያዩ ምክንያቶች በኢኮኖሚ በጣም ጥሩ ባማይባል ሁኔታ ውስጥ እንድምትገኝ ይታወቀል፡፡ እግዚአብሔር የሰጠንን ጸጋ በአግባቡ በማልማት (ስራ ላይ በማዋል) የኢኮኖሚ ችግሮቻችን ለመፍታት ደግሞ በዙ ቢቻል 24 ሰዓት መስራት እንዳለብን ግልጽ ነው፡፡ ይሁን እንጂ በአመራሩ በኩል በተለይም አዲስ አበባ እና በዙሪያዋ የሚወጡ ደንቦችና መመሪያዎች ይህን ግንዛቤ ውስጥ ያስገባ አይመስለኝም፡፡ ለማሳያነት ለምርታማነት አነስተኛ ፋይዳ ያላቸውን ተሸከርካሪዎችን የትራፊክ ፍስተን ለማሳለጥ ሲባል በይበልጥ ምርታማ የሆኑትን የጭነት ተሸከርካሪዎችን በጊዜ በመገድብ በምርታነት ላይ አሉታዊ ተጽዕኖ ሲያደርስ ይታያል፡፡ . . .

 በእርግጥ ከሚያወራ እና ለታይታ ጊዜን ከሚያባክን ይልቅ የተግባር ሰው ነው በጎ ለውጥን የሚያመጣው፡፡ ስብሰባ ዲሞክራሳዊ እና ልኩን በጠበቀ ሁኔታ እስከሆነ ድረስ ሊሰራ ለተወጠነ ነገር የተሸለ ሃሳብ ለማሰባሰብ ለመምረጥ እና የሰራ አቅጣጫ ለማሳለፍ አስፈላጊ መሆኑን አይካድም፡፡ የተዋበ ልብስ ለብሶ ለታይታ እና ለፕሮፖጋንዳ ፍጆታ ከሚለፋ ይልቅ እጁን በተግባራዊ ስራ ላይ የሚያሳልፍ ነው ትክክለኛ ልማት የሚያረጋግጠው፡፡ በተመሳሳይ መንገድም እውነተኛ ሠላምን ለማረጋገጥ ከምናምን ጥልፍልፍ ነገር እርቀን ክልብ በማመን በተጨባጭ መንገድ ተግተን ስንሰራ ብቻ ነው ሠላምን ማስፈን የምንችለው፡፡ . . .

 ከውሸታሞች ምንም አትጠብቁ:: አይዞአችሁ!!! እውነት እንጂ ውሸት ጉልበት፣ ጥንካሬ፣ ውበት እና ዕድሜ የለውም፡፡ ...
 አለማዊ ብልጽግና አንዲሰፍን መስራት፣ መጣር፣ ማመቻቸት … ያለባቸው የፖለቲካ መሪዎች እና ፖሊቲከኞች አንጂ የሃይማኖት አባቶች ጉዳይ አይደለም፡፡ ...

Why not just check the fuse with multimeter for continuity? Rather than using the bulb

And what type of soldering iron did you use?