Відео

Do you know if you can use a .22uf 250v instead of a .25uf 150v?

Do you know if you can use a .22uf 250v instead of a .25uf 150v? Please

Thank you, interesting and helpful. The background music however filled the empty spaces blending with your speech making it unnecessarily difficult to understand your words.

Thanku sir Good explanation

Ssuuppeerrbbb Thanku

isn't one test is missing - Black Led on Base and Red on Collector and Multimeter should give you an "OL" Over limit reading

It's too slow. The video seems ad hoc, not planned or scripted. So there was nothing to troubleshoot, nothing to fix?

at 40:37 you were doing the calculation for AC peak-to-peak that's the voltage differential between the maximum positive and negative peaks. When you convert peak-to-peak into DC only the positive (and/or negative) charges remain from zero to peak(not "1"). You likely had the non peak-to-peak AC voltage and to calculate that is just "AC Voltage=DC Voltage"(Not counting for efficiency loss.).

Woah woah woah stop. Don't just replace capacitors if they might be old. LOOK at them if they say Rubycon, Chemi-Con, Nichicon, or Panasonic you might want to trust them. If you take out my completely fine Nichicons and replace them with Wonhunglows from ali express I'll be ticked.

You shouldn't measure diode bridges in-circuit they can be crossed with a transformer that may give you incorrect readings.

🇺🇸🇺🇸❤️🇺🇸🇺🇸 Great video, thank you for sharing your experience. If I may please, I’ll add that holding the board up to a bright light and viewing through the board, light opposite your viewing side, you’ll more easily see some broken traces and some failed solder joints; reverse the board to view from each side. Second point with due respect, I kept feeling “ok I got that “ when you repeated the same points … not a big issue and not meant to criticize! Just viewer feedback from my POV. I’ve been in electrical/electronics/optical service for 36yrs and a technical trainer ; I got some good tips from you. -Thanks again.. good information.

Finally. Exactly what I’ve been looking for

Hi how are you doing I'm interested in this training couse how can obtain a copy of the programs

OL stands for Open Loop, thanks for the video, great to see how you think.

The only confusion is that the peeping sound shows continuity and no sound means a short circuit

facebook group link

sir which books to refer for indepth knowledge please let me know

good vid buddy

So, collector and emitter are giving me lecture (both positions), and I have a question, is it common that these type of of transistors manage the signal of 12 volts that activates the relay in order to make a motor work? By the way I already tested the relay and it is ok, but no 12v signal, suspicious #1 NPN transistor!

What is this shit! Is this a con???

Thank you for the video

do you have anything on how to troubleshoot TV power supply down to component level ?

Bravo from France. So clear, good explanation and practice👍

i have been repairing and referbishing for years. I want to learn how to solder better and how to "Stab" with my meter. Would this be any help?

Thank you so much. It is so hard to gain experience when every job in my state requires experience. This may not count as a job experience but at least I have an opportunity to gain personal experience thanks to your course.

How can I connect with you

Hi can you tell me how to troubleshoot a non-polarized circuit board for a paper shedder that will only go in reverse and wont shred paper tks

It hard to explain why I am studying this stuff but I am deep into it, I have an Idea like a Lego set snap on connections really simple and cheap components people will soon be into it, making their own but like Ford sadl I give away my cars cheap make money on my parts same Idea the shell of the computer the owners creation but your parts, I hope I gave you ideas thanks again

I really needed this, thank you, as I am learning I think about making my own I got caught up in programming hardware software, but not able to organize it all together all books I read not quite understanding them fully trying to memorize them all only to forget a few months down the road I get flash backs of what I have read. I do get flash backs of what I read though, this video is amazing what I was looking for thank you (gush shu bay ) meaning thanks

Excellent video!!!! Nicely explained

My main multimeter is a Fluke 77 II. 30 years old and STILL in calibration. Awesome piece of kit.

Keep on pushing God can blessed you

Painting makes it painful to watch. Waste of time.

Can you do a control board for a residential a c unit.

The first thing is used your 5 sence, seeing, smelling and hearing.

Get to the poiñt bitch

Thank you so much for such great work🙏

zoom in please D":

Please I am Mr. Robert Asiedu from Ghana West Africa and I have a NIKKO AMPLIFIER which the sound output is not working can you help me fix it?

I can now test transistors with confidence after watching your informative video, thank you.

A most excellent presentation. Very clear and beautifully presented.

Bro as a fresh graduate, thank you. I wish I had a lab instructor that would’ve taught us in this format. Very practical knowledge.

Useless information

Worse tutorial ever.

I had an old guy tell me to make a dumb azz map before you remove a bunch of wires but video works too🤣

Thank you for the video. New subby. You RoCk. p.s. OL = Open Loop (derived from the now defunct telephone circuits of yesteryear). Cheers from So.Ca.USA 3rd House On the Left

Power supplies are a lot like cars (I've repaired both). Most SMPS supplies are basically the same, and you can identify the functions of many components just by looking at them (much the same way you can identify the alternator, radiator, or power steering pump on any car)

Hello Lue. Love your content. How do I get to the online electronics course?

GREAT VIDEO!

Good way of teaching newbies especially if there is no schematic. Been doing repair of electronic stuff for 20 years and still counting. I developed the skill of fixing things without schematic. I can even modify a circuit even if there is no diagram, I just have to make my own and get the the components ID and search in the web for the specs. For the power supply that you were checking, I guess the output is quite low. Assuming you are using the 115Vac input and the transformer’s expected output is 12Vac, then the turn ration has to be 9.5:1. The rectified output is supposed to be 12*1.414 = 16.9Vdc. Now adding the filter caps, C=I/2*F*Vpp. C=2/(2*120*2) C=418uF or the closest to that. With that filter capacitors the filtered DC out is ~14.9Vdc and that is at open load. What you were getting is quite low.