Just sharing, here... In the USA, we have "Painter's Tape." It is similar to brown masking tape, but the adhesive leaves no residue, when the tape is removed. It is usually blue, in color. When I clean my bench top, I use this type of tape to pick up the tiniest bits of metal, that the brush misses. It is also useful for securing a PCB to the bench, when soldering. It has a thousand uses, on my bench, and I always keep it at hand. Again, in the USA, using a light bulb in series as a current limiter is called a "Dim Bulb Current Limiter." It is also (incorrectly) called a "Dim Bulb Tester." It requires a common incandescent, or halogen, bulb(s). LED bulbs will not work and will not protect you. You can mix and match different wattage bulbs, in parallel and series, to obtain the specific current that you desire to use. You mentioned that a resistor may be used to discharge a capacitor, but then you used your screwdriver to short the cap pins. With all due respect, this is a poor and dangerous method that can damage the cap. A "Capacitor Stinger" probe can be made from a high value resistor, having a sufficient wattage rating, a few bits of wire, heat shrink and chop sticks. Many DIY solutions may be found on Google. Constructing one might make a good, short, instructional video, for you. I hope these things help. I take no responsibility for what any individual makes from my suggestions. Each person is responsible for their own research, knowledge and safety.
@HaseebElectronics
2 жыл бұрын
first of all i am thankful for your comment it is really a valuable safety point. i will share it among all my viewers as well please accept my best regards and special thanks
@user-pz6cx8zf2y
Жыл бұрын
@@HaseebElectronics In the light of all said above, a 100W incandescent lamp does not always offer the needed protection, simply because it needs relatively too much initial current in order to glow permanently (if something is still wrong after a repair, or even if it is used for a simple verification test that everything is O.K with the power supply under test). The best method is to use each time a bulb that has a power less than or equal to the power of the power supply under repair/test. As a practical example, using a 100W lamp in series to the input of a defective USB telephone charger under repair does not really make sense. In such cases I use a 3W night lamp, while in general repairs I prefer a 40W lamp. On the other hand, an inverter welding machine may need a 350 to 500w lamp for the same test...
@HaseebElectronics
Жыл бұрын
perfect I normally use 60 watt 100 watt 200 watt 300 watt 500 watt halogen rod depending on the load size
@dzabakwesi2213
9 ай бұрын
@@user-pz6cx8zf2y well explained
@josedicesare2407
7 ай бұрын
Ho scoperto il tuo canale per sbaglio, devo dire che ,oltre a saper riparare le schede, sai perfettamente passo dopo passo a spiegare ogni singolo componente con le sue relative funzionalità, cosa che nessuno lo evidenzia, con il tuo canale sto imparando ogni singola riparazione con pazienza e tanta buona volontà. Un likes e iscrizione assicurato. Bravo e complimenti 👍👏👍
@herielrizk
Жыл бұрын
This time with language subtitles, we really appreciate it..👍👍
@HaseebElectronics
Жыл бұрын
it is my pleasure
@alexbinai2322
6 ай бұрын
Continue with similar testing practices, enjoying it very much
@1beejay1
Жыл бұрын
Mr. Haseeb, Thanks again for another wonderful video. I really appreciate in your videos; how you always make safety first and tell us how to be safe! I always learn important concepts from your teaching.
@HaseebElectronics
Жыл бұрын
best regards i am thankful for your valuable encouraging comment stay blessed
@timmccabe9889
2 жыл бұрын
Great video on troubleshooting steps and the safety aspect of working with power supplies. I have watch some of your videos and they have helped me repair items around the house.
@HaseebElectronics
2 жыл бұрын
best regards and special thanks for your valuable words to appreciate my efforts stay blessed
@ChrisHalden007
2 жыл бұрын
Wish I knew that before I blew off the last power supply I tried to repair 🤣 great video. Thanks
@JamalSixty
2 жыл бұрын
Dear Mr:Haseeb I am Jamal from Sri Lanka and I always watch your videos and gained more knowledge out of it. Much appreciated if you could upload a tutorial about Power Bank circuit principles and Power Bank jump starters. Thanks in advance.
@polskasopot
Жыл бұрын
Blessed be our Father in heaven for your wonderful work.
@HaseebElectronics
Жыл бұрын
GOD's willing and GOD's blessings
@patrickdaka6507
Ай бұрын
great video. Thanks
@HaseebElectronics
Ай бұрын
You are welcome!
@jaymopromotions3958
Жыл бұрын
This was the simpliest you have taught me..asalam aleikh..teacher of greater nations
@HaseebElectronics
Жыл бұрын
best regards and special thanks
@rmjnm
2 жыл бұрын
Helpful tips for ones who spent time repairing these power supplies. Thanks a lot.
@HaseebElectronics
2 жыл бұрын
You are most welcome
@ElectronicUrdu
2 жыл бұрын
Nice video sir
@HaseebElectronics
2 жыл бұрын
thanks a lot bhai
@ashoksafaya5397
8 ай бұрын
Why we use series lamp no one explained this way so far,thanks. The Soldering iron with your good self ,may be with auto desoldaring pump,seeing for the first time,thus satisfied with quality teaching.Thanks.
@osisegregory
5 ай бұрын
This is great technique sir! Wondering who came up with it.
@juancolon8816
10 ай бұрын
Thank Haseeb for teaching us.
@abdulwahab5957
2 жыл бұрын
Asalam o Alikum sir ALLAH sy dua hi k apko salamt rakhy khush rakhy or sahat wali zindgi ada ker
@janermejia555
2 жыл бұрын
Bro, you’re the best man. Thanks for sharing your knowledge.
@vijayakumarkumar9190
2 жыл бұрын
Very good and useful information sir thanks for sharing the knowledge to us
@HaseebElectronics
2 жыл бұрын
Thanks and welcome
@ravindraadapa2952
2 ай бұрын
Good one sir nicely explained
@Yorumcu63
Жыл бұрын
Great video
@HaseebElectronics
Жыл бұрын
best regards
@alexwayo6983
Жыл бұрын
thanks so so Mr. i finally got it. god bless U in whatever u do...............................👌👌👌👌👌
@aliyuibrahimadamu5106
2 жыл бұрын
I really like your videos. I downloaded as many as possible. Please what advice can you give me on how to be very familiar with circuits. I'm Biomedical and Mechanical Engr. I want to upgrade my electronics knowledge to handle medical equipment, most especially the electronic aspects. Thanks
@clems6989
2 жыл бұрын
Watching this channel (and others) is a great place to start...
@amma1837
9 ай бұрын
Thank you sir
@nafez3945
Жыл бұрын
Thank you It’s very important to know befor any repair
@HaseebElectronics
Жыл бұрын
You are welcome
@samwikiwiki8274
Жыл бұрын
Salmon alikom Bro God bless u .4 your work. And spreading the knowledge. . But.1st.you say inputohms was ok... After test with lamb ...not ok .... Can explanation ..what can be OK ..from input resistance
@HaseebElectronics
Жыл бұрын
Oh, Very great and deep observation thanks a lot for your comment kindly check video number 684 for your detailed answer. kzitem.info/news/bejne/k6yZ14ZnjYeGYKA
@fredb1130
2 жыл бұрын
Thank You I enjoy your videos. God Bless.
@HaseebElectronics
2 жыл бұрын
best regards 💗
@pradeepmahendrasemage4043
Жыл бұрын
Nice.
@HaseebElectronics
Жыл бұрын
it is my pleasure
@davidlingaard860
Жыл бұрын
Thank you for your videos , i learn a lot from you.
@HaseebElectronics
Жыл бұрын
it is my pleasure
@sinjhguddu4974
2 жыл бұрын
A great safety tutorial, thank you.
@HaseebElectronics
2 жыл бұрын
You're welcome!
@Ahamed-iz2sc
Жыл бұрын
salaam bro, best video for beginners like me. very good explaination. good work.
@HaseebElectronics
Жыл бұрын
it is my pleasure
@itechfone135
Жыл бұрын
Trés belle vidéo, j'apprend beaucoup avec vous. Merci!
@HaseebElectronics
Жыл бұрын
le plus bienvenu. reste béni
@aliali-et7xh
Жыл бұрын
assalamualaikum..tq sir..learning something today..all about safety lamp..i aver try diy my power suply ..couse by lightning..but i dont anderstand ..step of safety repering power sulpy..n got bomm...diod..hhhaha..another part have short circuit..
@rahulpatelgujratahmedabad3497
2 жыл бұрын
GOOD TICHING KARTE HO AP THANKS 👌🌹👌🌹😆😂👌🌟💫
@HaseebElectronics
2 жыл бұрын
best regard and special thanks
@gonzagaribotti9852
3 ай бұрын
good video as always...live is always connected to the lamp...in case i conected the other way is no effective the serie lamp circuit?
@aritrasinghachowdhury3227
Жыл бұрын
Good evening, Sir pls add some videos on automotive ecu/ecm troubleshooting.
@christophersmith-zn2kn
Жыл бұрын
Hi haseeb, as I am learning just wanted to know if I could use a led bulb or not.
@HaseebElectronics
Жыл бұрын
best regards no we cannot use LED lamp, we need tungsten 60 watt or 100 watt lamp (which have resistive filament)
@billnaire5220
Жыл бұрын
Thank you for another great video.
@HaseebElectronics
Жыл бұрын
best regards
@omarykajuna2552
Жыл бұрын
Through your video I m going to be electronic engineer
@alimawali1443
2 жыл бұрын
Thanks indeed for your great information .
@HaseebElectronics
2 жыл бұрын
it is my pleasure
@W1RMD
2 жыл бұрын
Awesome, Thank you and Happy Monday to you!
@HaseebElectronics
2 жыл бұрын
best regards ans special thanks Good Morning Brother
@repairguideman
2 жыл бұрын
Hi, some of the electricians use"KLY POWER CIRCUIT" for repairing smps power supply.We want to know about this this circuit diagram and about its benifits or disadvantages. Does it safe to use it?. Please make a video about this kly circuit
@user-zz3oh5uk1c
9 ай бұрын
Yes very clear
@abbaselekberov9033
Жыл бұрын
Allah bless you bro👋
@HaseebElectronics
Жыл бұрын
best regards and special thanks
@vijayakarekar
2 жыл бұрын
Thanks...sir ji..,
@HaseebElectronics
2 жыл бұрын
So nice of you
@thankyou7741
2 жыл бұрын
Can you explain why resistance between two power terminal showed in mega ohm even its shorted?
@gopalarao8578
2 жыл бұрын
Thanks 🙏
@HaseebElectronics
2 жыл бұрын
best regards and special thanks
@boybravo689
2 жыл бұрын
Thumbs up done nice video presentation sir tnx
@HaseebElectronics
2 жыл бұрын
So nice of you
@SujudElektro
Жыл бұрын
The best explanation thank u sir ❤
@HarlavanisPanagiotis
2 жыл бұрын
Another fantastic video dear friend 😌
@HaseebElectronics
2 жыл бұрын
best regards and special thanks
@kannanr9533
11 ай бұрын
Thanks
@HaseebElectronics
11 ай бұрын
Thanks a lot for your valuable support
@MsQwerty65
Жыл бұрын
It called the serial lamp tester
@sellathuri6420
6 ай бұрын
Mr. Hasseb, why need to remove the ground cable?. I used series lamp for ups repair, lamp light up and ups not turning on. After remove the lamp and power up ups, then it is able to power up. Kindly advise. Tq
@Ff-kh6tn
11 ай бұрын
Sir you checked resistance with multimeter on the input of smps.any particular range is there.what is the use of measuring that resistance
@HaseebElectronics
11 ай бұрын
Normally it is above 100k and above If it is some hundred ohms then it will be a problem
@Ff-kh6tn
11 ай бұрын
@@HaseebElectronics sir I checked on ATX power supply smps of PC the voltage at the DC rail capacitor is 315vdc and it is maintaining.when I checked the circuit I found that the pwm ic tny2768pg source and drain was shorted,it has internal MOSFET.i checked in the circuit and it was shorted and I taken out from the circuit the ic still shorted.There is no output at the output side of smps and the fan is not working.but the fuse is not blown even the source and drain of ic was shorted.why
@arunkumar-bh2dp
2 жыл бұрын
good explation of circuit repair
@ethiopiancameracatchs8843
2 жыл бұрын
tnxs mr haseeb keep shareing
@HaseebElectronics
2 жыл бұрын
best regards and special thanks
@t1d100
2 жыл бұрын
I learned some new things! Thank you!
@warunakumara7671
5 ай бұрын
SIR THANK U FOR THE VIDEO , IAM WARUNA FROM SRILANKA SIR CAN U PLZ SHOW THE IC REMOVAL TOOL THAT U USING IN THIS VIDEO , THANK U SIR
@HaseebElectronics
5 ай бұрын
thanks a lot it is WELLER WR3M made in germany you can find it online. it is abouve 3000 USD. its routine maintenance is also expensive i suggest to get HAKKO 701-15 that is cheaper than this and its maintanance is very low
@yousafabbasi5570
Жыл бұрын
Sir this video is very good but my problem is the which IC you use in this circuit please guide me
@user-pd2wm7jp8v
7 ай бұрын
Can I use series lamp in inverter battery input
@votekunene9742
Жыл бұрын
Thank U very much this is quite wonderful.
@orlan110352
Жыл бұрын
What is the model # of your desoldering pump and where can purchase it? Thank you .
@HaseebElectronics
Жыл бұрын
it is WELLER WR3M rework station, made in Germany. please check video number 511 for more details about my rework tools
@omarykajuna2552
Жыл бұрын
Thax
@wisher21uk
2 жыл бұрын
May be worth pointing out use a incandescent bulb 100w is best (not LED or energy saving type)
@HaseebElectronics
2 жыл бұрын
yes brother it is incandescent (Tungsten Lamp 100 watt ) it is not LED lamp
@muhammadishtiaq24
2 жыл бұрын
Weldon keep sharing
@HaseebElectronics
2 жыл бұрын
best regards and special thanks
@wisher21uk
2 жыл бұрын
Brilliant thanks 🙏
@HaseebElectronics
2 жыл бұрын
You're very welcome
@skysurfhf
2 жыл бұрын
Why live earth wire can't be on series lamp ? Thanks... Greatings from Portugal 🇵🇹 🌟
@HaseebElectronics
2 жыл бұрын
most welcome during repairing, in my experience that it is safe to use 2 wires (line & neutral) without earthing just connect earthing wire for final testing
@Ru556
Жыл бұрын
I think what you are saying about the lamp is that it causes a large voltage drop across its filament if a short occurs in the circuit. A shorted current will flow, but it will be greatly reduced due to the voltage drop in the lamp. The short could occur after a number of otherwise good components. Is that correct?
@zafariqbal7570
7 ай бұрын
Sir can we use anykind of lamp here?
@HaseebElectronics
7 ай бұрын
We need to use old type Tungsten filament lamp 60 watt or 100 watt
@kovaifix7266
Жыл бұрын
What is the reason reverse probes in resistance mode ? any reason please tell us
@alexluz7023
2 жыл бұрын
3:35 can you explain me why is best practive to remove ground wire connection for better safety!!! thx learning every day
@clems6989
Ай бұрын
Aren't you creating a voltage divider with the light bulb. So only 1/2 voltage will be at the board ? Or am I thinking wrong?
@HaseebElectronics
Ай бұрын
exactly it is series load connected in series with input line of UUT / DUT. during normal operation the lamp will not effect too much but in case of hogh current consumption by UUT/DUT (during any failure / error / abnormality) the series lamp will protect the circuit from any further damage for example, if there is anything short circuited in UUT/DUT, the lamp will glow full instead of any possible damage in the UUT due to any unexpected short cirfcuit
@clems6989
Ай бұрын
@@HaseebElectronics Thank you sir !!
@Geeth...
Жыл бұрын
Is there any alternative method electronic protection circuit without blub
@baselkw4783
Жыл бұрын
you are the best keep going
@jocshaikh2996
2 жыл бұрын
بارك الله فيك
@HaseebElectronics
2 жыл бұрын
best regards and special thanks
@jcsudeshchannel8224
2 жыл бұрын
Experience got from you
@steve6375
2 жыл бұрын
Doesn't make sense? If there was a short, why was the fuse not blown? Maybe you replaced the fuse without telling us?
@HaseebElectronics
2 жыл бұрын
great it's fuse was burnt out and I already bypassed fuse with 1 ampere buss fuse wire to demonstrate the problem instead of proceeding to input short circuit diagnostics
@matrikashrestha268
Жыл бұрын
thank u sir for this kind of great video..sir how we can know about the smps power supply ampere
@HaseebElectronics
Жыл бұрын
please check video number 586 for current measurement
@susantaatha6468
2 жыл бұрын
Thank you for very good advice.
@HaseebElectronics
2 жыл бұрын
You are welcome!
@kenarf3332
Жыл бұрын
hello , can You tell a name of disordering device .
@HaseebElectronics
Жыл бұрын
it is WELLER WR3M rework station, made in Germany. please check video number 511 for more details about my rework tools
@aldrinpagunuran8688
2 жыл бұрын
Can you make a episode. For that lamp..we need deep explanation how a single incandescent lamp can protect a electronic circuit.. how he behave in a circuit yet he was just a lamp
@kamranjavaid
2 жыл бұрын
Use of this series lamp will also do shock prevention by reducing the current flow?
@HaseebElectronics
2 жыл бұрын
no. if we will not take care for earthing. this series lamp is also dangerous because some milliamperes can damage human body
@suatbulat9599
6 ай бұрын
👏👏
@JohnJohn-fm3dx
Жыл бұрын
Great videos Haseeb. One question. Does the lamp must be 100w? Should a 60W or else work as well? I imagine it's all about not to burn the lamp because if the lamp burns out then the lod will fall onto the power supply fuse
@rohanranjandesilva465
2 жыл бұрын
after lone time very good video sir how I will by same de soldering pump
@HaseebElectronics
2 жыл бұрын
best regards it is WELLER WR3M made in Germany you can check some local supplier or purchase online
@abdulwahab5957
2 жыл бұрын
sir mujy ap sy ek request krrni hi k dynamic voltage stablizer pr b ek video bena dai
@jaym5938
Жыл бұрын
How do you determine neutral and live wires with a plug that doesn't seem to differentiated? In the U.S. we have neutral, live and earth.
@homamalsrour5673
2 жыл бұрын
Nice, thank you for your nice effort, my friend, I have a question, do you have an explanation about solar inverters?
@FishingNOutdoorFun
2 жыл бұрын
great info sir
@HaseebElectronics
2 жыл бұрын
best regards and special thanks
@milovanmitrovic-miks6174
2 жыл бұрын
Thank you haseeb...
@HaseebElectronics
2 жыл бұрын
special thanks
@mtrltoolman
2 жыл бұрын
جزاك الله خير
@HaseebElectronics
2 жыл бұрын
اللہ یسلمک و یسعد صباحک
@jitendramudpalliwar4812
Жыл бұрын
Sir, What should be the wattage of series lamp as compared to that of the object to be tested? Pl explain in detail.
@williamchichewo2849
Жыл бұрын
HOW ARE YOU BROTHER THANKS FOR EVERYTHING WHAT YOU LEARN US YOU ARE MY HERO KEEP IT UP PLEASE,ANYWAY BROTHER I CANT GO WITHOUT ASKING A QUESTION I AM STRUGLLING WITH A 33 GIGA OHM RESISTOR THE COLOURS ARE ORANGE,ORANGE,WHITE AND GOLD SO MY QUASTION IS,IS THERE ANY CHANCE THIS RESISTOR CAN GIVE A CONTINUITY RESULT IF IT IS GOOD?
@kjuirteerdserty9618
Жыл бұрын
I think it is good to use a low watts bulb so that little current can flow through the circuit, for example 50 watts and not 200 watts..
@HaseebElectronics
Жыл бұрын
yes dear 50 watt, 60 watt, 100 watt, 200 watts lamps are used according to the load size
@calligraphe0125
2 жыл бұрын
Thank you so much sir Hassib
@HaseebElectronics
2 жыл бұрын
Most welcome
@mohammadkhalid6886
2 жыл бұрын
MBR60200PT (Vf= 0.90volts)(schottky diode) na mile to iske mutbadil kya hum 60F30S (Vf= 1.3volts) (fast recover diode) ya STTH6002CW (Vf= 0.75volts)(Ultra fast diode) ya FFA60UP20DN (Vf= 1.15volts)(Ultrafast diode) istemaal kar sakte hain kya , aur isme proper heatsink with fan istemaal karen to kitne “ Amp ” tak safe load use kar sakte hain ,,, behad shukriya ,,,,, 👍
@kironsk7697
Жыл бұрын
If the circuit board was good, series bulb wouldn't illuminated . Isn't it?
@HaseebElectronics
Жыл бұрын
if the circuit is good, and lamp is higher wattage for example 100 watt. that time the lamp will not glow. just in startup, it will glow for a moment, that time the empty capacitor tends to draw surge current for initial charging, if circuit have some short circuit, that time the lamp drops all the voltage across itself, and protects the circuit from more damages
@mujtabanaqvitv7619
2 жыл бұрын
So beautiful beautiful very very nice video your brother😍😍😍👍👍🌹🌹🌹
@HaseebElectronics
2 жыл бұрын
best regards and special thanks
@db1236
2 жыл бұрын
How to choose the right wattage of the light bulb? And how to understand the light result? (no light, low light, full light, quick flashing, slow flashing...?). Thank you, sir
@ckngmad1357
2 ай бұрын
I try this safety bulb but with 160watt bulb instead Connect it to my atx power supply And the bulb is kinda half glowing Its measured 100ish volt on ac side And the dc side is 200ish Whats my problem sir? Is it short somewhere?
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