how to test a power adapter with digital multimeter

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how to test a power adapter with digital multimeter

Рет қаралды 80,038

Күн бұрын

now let's to test a power adapter like used with laptop, router, etc, using a digital multimeter, for know if it is good or bad. suscribe thanks.

Пікірлер: 33

@mjac8373 9 күн бұрын

You made it easy! Thank you, keep making more videos like this one for the confused DIY'ers in USA near Detroit!! Age 74

@SWIFTY5150 10 ай бұрын

Thanks buddy! I checked my laptop adapter with my multimeter and got 0.L which means it probably has a broken wire.

@dondiegoferguson7076 9 ай бұрын

Very good instructions, just what I needed.

@alexapuerta Жыл бұрын

Thanks! I needed to test a power adapter before selling and I successfully used your instructions.

@SosaNasa1English Жыл бұрын

Excellent!

@matheo4712 5 ай бұрын

I thought my dads speaker died but it was just the power supply. Very, very nice to know 👍🏼

@5abivt 5 ай бұрын

I’m literally diagnosing my Jbl extreme speaker 😂 .. never had a power adapter die in my lifetime but I think it’s a first now !

@matheo4712 5 ай бұрын

@@5abivt it's incredibly easy to throw away something that has no problem at all, knowing how to diagnose those things is something really, really good! Now I have curiosity about all the other electric things in my house 😅

@5abivt 5 ай бұрын

@@matheo4712 indeed !! This speakers worked great and talking to the wife.. couldn’t believe that it’s been like 8 years already .. seemed like 3-4. It’s always been taken care of I usually listen to it in the garage when working on cars. I have a digital voltmeter that I wasn’t sure was reading correctly but I brought the Adapter to work and tested it and same thing.. it’s putting out like 40 milivolts so I can order up a new one. Hopefully it’s my issue too glad you got yours working ! 👍🏼

@5abivt 5 ай бұрын

@@matheo4712 wanted to update that is was my power supply in the end ! Both batteries charge well with a new psu. I’ll be taking the Jbl one apart to see if I can find where the issue occurred ! 👍🏼👍🏼

@jrdoj 5 ай бұрын

Gah! I had it set on AC voltage before your video set me straight. Thanks, my man. You helped me find my problem.

@nektrus 26 күн бұрын

Thanks!

@ritz5606 Жыл бұрын

Instructive and good. Thanks.

@educationalandtechnicalcha9425 Жыл бұрын

How to test ampere?

@kelvynacena2813 2 жыл бұрын

Its good nice

@SosaNasa1English 2 жыл бұрын

Thank you so much 😀

@boblevey Жыл бұрын

Thank you

@lakshmanhearath5495 Жыл бұрын

Excellent.

@madcapZ Ай бұрын

Thanks so much

@sylviagm 3 ай бұрын

Gracias!

@ZEN43D 2 ай бұрын

thank you

@drrobotnikmeanbeanma Жыл бұрын

I have a Dewalt jumpstarter.On the back of the jumpstarter it say the input volts is 14.5.One of my ac adapter is 12v.Is it ok to use 12v to charge the Dewalt jumpstarter.Can I use the 16v input ac adapter It's called Dx aeps14 ?

@technofeeliak 6 ай бұрын

Did you mention polarity?

@pok1pok 28 күн бұрын

Missing test for AMPERE.

@SharpEdgeStandardOfficial Жыл бұрын

Question. What does it mean if power adapter is working but after having power for 20 minutes it starts humming loud and then if shake around it’s cable the humming cuts in/out?

@ct7625 Жыл бұрын

Two adapter each 5 vdc output check out okay. Only one powers on device. I presume problem is in pin connection inside device. Will change pin connector.