Thank for your efforts in explaining how to test Optocouplers

@electronicsrepairbasics_erb

Жыл бұрын

So nice of you

Awesome explaination.Thanks brother.Pakistan

@electronicsrepairbasics_erb

Жыл бұрын

My pleasure

Thanks for the detailed explanation.

@electronicsrepairbasics_erb

Жыл бұрын

You are welcome!

Genius explanation. Thanks a lot. 🇪🇹

@electronicsrepairbasics_erb

Жыл бұрын

Glad it was helpful!

Helpful! Thx for your video.

@electronicsrepairbasics_erb

Жыл бұрын

So welcome

Brilliant,thank you 🙏

@electronicsrepairbasics_erb

8 ай бұрын

You're most welcome!

Toujours aussi efficace

Oh..Great ..Thanks you soo much ..

@electronicsrepairbasics_erb

Жыл бұрын

You are very welcome

Thanks

@electronicsrepairbasics_erb

4 ай бұрын

Welcome

Great!Great!Great!

Should 1100 come out without AC 220V power supply?

Can this be used to reset a Z80 cpu, by connecting the collector to ground and the emitter to the /RST pin?

you are very good to expain but please change your mic

Nice work, please i need a detailed video on how to use digital multimeter for a beginner

@electronicsrepairbasics_erb

Жыл бұрын

Noted!

Q) It the transistor is damaged/open, you would also get no reading on Pins 3+4, so wouldn't you also need to test that the emitter and collector connect when the diode/LED illuminates the photosensitive base? Thx.

Hi. I Dndid the same like you. I testes the diode-OK. When I test the transistor part, I get around 1 volt. But when take it out from the board, I then get nothing. Is that OK? How should it be tested?

I'm a total electronics moron - but why others are using some more complicated methods of testing opto-isolators eg. one guy desoldered from the board and connected all 4 pins and use a resister and battery etc. Can I test an opto isolator "your way" directly on a board? (no desoldering involved). Thanks

@SolderBrothers

11 ай бұрын

It gets complicated. In circuit, no soldering, you may get readings from other components in the circuit. This is a good base test to show shorts or opens on the opto. Of course a short elsewhere in the circuit will show a short on the opto.

How do we know is it optocoupler or an IC by doing it visualy when it still on circuit?? Is it any sign?

@surgingcircuits6955

Жыл бұрын

I recommend 1st to read the marking, and internet search the number(s) you find. If you have more knowledge... Optocouplers are a non-contact way to connect 2 circuits on a PCB that may be operating at different voltages, so look at the PCB circuits and see if the device appears to be "isolating" the two circuits. The transistor side (pins 3+4) are acting like a switch for the 2nd circuit. Similar to how a "relay" works ... just using light to activate vs using mechanical means.

1000 what? there is no 1000 there unless it is mV; is it? thanks because you're testing them in circuit, do those readings depend on the circuit or not? thanks

In case I need help in one cicuit, can you help and give explanation?

@electronicsrepairbasics_erb

11 ай бұрын

You are very welcome Pierre, Join me on Patreon Page for more unique content

good

@electronicsrepairbasics_erb

Жыл бұрын

Thanks

Very nice😋👏!!! Don't miss out = "Promo sm" !!

@electronicsrepairbasics_erb

Жыл бұрын

Thank you

Thanks

@electronicsrepairbasics_erb

Жыл бұрын

Welcome