3 Ways to Check Capacitors in Circuit with Meters & Testers
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- เผยแพร่เมื่อ 16 ธ.ค. 2016
- Learn How to check bad Capacitors in circuit boards with ESR and Fluke multimeter, ESR meter reading is ohms and Fluke capacitor reads microfarads uf mf of a cap, see below for "capacitor meters"
Fluke multimeter 115 - amzn.to/2hIgCub
MESR-100 V2 Auto Ranging in-Circuit ESR METER- amzn.to/2hRgTyl
Warning: Use this information at your own risk
When working on electronics always follow safety codes, beyond the control of Tampatec, I don't guarantee results due to improper use of this information. Tampatec assumes no liability for damage or injury incurred as a result of this information in this video. see here for safe electrical practices- www.esfi.org/electrical-safety - แนวปฏิบัติและการใช้ชีวิต
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Cheers for the Video clip! Forgive me for the intrusion, I would love your initial thoughts. Have you thought about - Saankramer Electronic Magazine System (should be on google have a look)? It is a smashing one off guide for learning how to repair electronic items like a wizard without the normal expense. Ive heard some interesting things about it and my work buddy after a lifetime of fighting got cool results with it.
hey ,if anyone else trying to find out
industrial electronic repair
try Saankramer Electronic Magazine System (do a search on google ) ? Ive heard some decent things about it and my mate got amazing results with it.
So if you have 5volt standby testing good but 12volt only reading .023 or .016 but no reading on the other end of the wire what needs to be tested next
What did you say in the end? Should be 150 uF but was 890 uF was that a good capacitor or not?
marko marinkovic {{
After watching your TH-cam vid I had enough confidence to try and repair a Phillips TV that had sound but no picture. I replaced three capacitors that looked bulged for 99 cents each. Works great now. Many thanks.
One of the best, if not THE BEST display of ESR tester measuring resistance of capacitors while they are soldered on circuit board. Can't stand the other YT channels skipping out on displaying this innovative function and it's accuracy.
I love your videos. In 1961, when I was five, I used to test the tubes for my Dad. The tester looked like a hospital medical unit, 4'x 3'x 3'. It was his pride and joy!
I recently replaced our TV because of continual malfunction and disassembled the old one. While watching this video I visually checked the circuit boards and found a 100 volt 3300 micro farad capacitor with a swollen top. A month ago I paid an HVAC company for repairs to our air conditioning which turned out to be replacing a capacitor. I could have saved a lot of money if I'd seen this video earlier.
The manner in which you speak is the reason I subscribed. Thanks for the content buddy.
I subscribed because i forgot to do that when i saw your video's earlier. You are a great teacher even when you may not realize that. I'm doing repairs for couple of years now. I only know my basic stuff of electronics and watching your vid's are still educating me alot.
Thanks and greetings from Belgium
Went through like 5 video. This one by far the most informative and clearer quality
thanks for speaking in a language format that is comprehendible
This comment is so real
Excellent video, what I love is that you have made a CLEAR and Precise Film and a Great and Clear Voice Over, you have definitely Demonstrated your knowledge to others.
I am an Electrical Mech Eng and of an age to have forgotten more than most know, but your Film just opened up all those flood gates for me, thank you so much. Mr Spence Eng
Well, well, well. This is the first time I'd seen this type of test equipment in use. And the fact that you explained how it all works AND the proper way to read the results is GREAT!
Thanks a lot. Happy New Year.
Excellent presentation, your a great tech, I'm getting back into this after a 20 year gap due to career detour, things have really changed,regardless thank you for sharing your knowledge base.
I repair old amateur radio tube receivers and the electrolytic Caps are always causing major ac hum and always have to be replaced.. They are always pretty leaky. The newer electrolytic solid state caps are only easy to detect physically when they are swelled up. Thanks again for the great references and the information for checking caps.
Fluke 100, I have had mine for 30 years and still kicking butt, Great video bro...!
Tip, when you find out your true focal depth for your camera for closeups, mark that on the table or floor, and don't go past that distance when holding up objects. That way you stay in total focus. :) And I can then SEE what you are pointing to:) Otherwise it is a blurry mess....not fun for you or others. And you are a pro at fixing...we need you!! LOL Anyway, love the videos, and I am learning a lot for an old gal!
That is one useful Esr meter. Thanks for the demo and God bless your work.
I bought the fluke 117 from fluke direct and love it! It does both capacitance and resistance for capacitors and has a setting for diodes.
Concise explanation and demonstration, even a complete novice like me can easily follow along. So many tips packed into this one video, including the "pinhole" in a resister comment. I will be replacing a couple resisters now that read good, but have pinholes in them.
Great videos. I appreciate that that you don't assume that people don't know small details when showing videos
Really nice job explaining the process, thanks!
I bought a mesr100 tester thanks to your video ,it gave me the confidence to try it ,I have 16 Antminer hash boards to try and reanimate ,I was going to desolder 96 caps just to test them not now and it's .50 cents to check each one and a free tester (useful for hobbyist ,just starting ,like me ) when I've tested them ,YAY. U made my weekend ,Bless ya buddy , I always discharge caps ,great advice ,I put a taser in my pocket once without discharging the caps ! Voltage to the nether regions ! Is a great teacher ,wish I'd watched you first (0; Thanks again .
I always wondered what and how this stuff worked...now I do...and a super drawing to make it visual for those of us who learn the best that way! Nice job buddy!!!
I am so happy that this channel is growing bigger.
Thank you for sharing your expertise. Your covering of the basics for a novice is very much appreciated.
I really enjoy the way you present your topics, great personality for it, very helpful in my own projects, or when my brain is just stuck on ideas I should know already!
Holy cow.. Excellent video, thank you !!! I'm getting that ESR meter -- very much a time-saver !
clear videos , simplified and informative as always.thank you a lot!
As a young engineer I used to set a multimeter to a 200k+ impedance setting, then I place the probes on the capacitor legs. One way should count up, reverse it and it should count down. Then I know it is working!
What if count down till gets zero and the other ol
pretty crafty. good idea
it will still count down even when the capacitor is leaky.
Yes as the battery charges the capacitor But in practice the ESR could still be too high with that method without an ESR meter
Yes you know its working as a capacitor BUT at what capacitance?
Please tell us more about that tine soldering device & other similar types, thanks.
An older electronics repair guy once said, "It's usually the capacitors, always check the capacitors". thanks for this video, I feel like I can start checking now.
I agree after servicing televisions and failure is more common in the power supply compared to say the lower voltage stages such as tuner colour etc
I went to subscribe on this video, but appeared I already subscribed your channel. I don't recall when. This proves that's your most contents are informative. Keep it up. Thanks again.
You're so kind to share your knowledge. Great video. Thank you so much!
great job, always informative and to the point, thanks.
Great job explaining the use of the ESR and multimeter!
Great video. You're a good teacher.
hwally777
Yes to a point but you should never teach anyone to discharge capacitors with a dead short such as insulated pliers across it as if you did this in a TV power supply with up to 400Vdc you could cause a lot of damage You might get away with it for smaller low voltage caps as shown in the video but is always advisable to discharge all capacitors with a resistor or even a light bulb and you may even see the light come on for a second.
Great video. Thanks for taking the time to make it. I learned some things from this.
Hi guy, i have been following your repair series for some time now. I have decided to start a new journey on fixing a faulty tv in my neighbourhood and for that matter I think I can count on you for some coaching steps. Good work done bro.
Very professional and inspiring. Audible and easy to understand, well educational and impressive. Continue your passion and many will pursue your dynamic approach.
Sir help me with the service code of Ls TV 32" mode sa-3209
Sir help me with the service code of LS TV 32" model sa 3209
Sir help me with the service code of Ls TV 32" model sa 3209
A new subscriber! Thanks for the detailed walkthrough and for speaking in layman's terms!
I work in the fire alarm industry. Looking for the end of line resistor in an audio circuit with autoranging is difficult. The circuit is a giant parallel circuit of a capacitor in series with a coil. This creates a giant ringing circuit. Since the probe voltage changes as the range changes, the meter is constantly switching ranges, which changes the voltage, which changes the range etc. Setting a fixed range allows the circuit to stabilize quickly.
Excellent tutorial video!!! Great stuff Tampatec! 😊😉👍🏻
Love your videos always very informative, keep up the great work 👍👍👍
Your video is so helpful to us, DIYers. Thank you for sharing your knowledge to the world!
Easy to follow video. Well explained. Useful too since my 32" Samsung tv has a bad cap on the powerboard to the LED connector. The cap didn't split or leak but it has domed up.
Definitely subscribed. You're very thorough, a very smart person.
Awesome. This video is just what I was looking for. Thank you so much. You have a talent for teaching! Well done also for beginners like me!
Great informative video. I have several arcade games in my house as a hobby which forces me to learn some basics with electronics. Some of the things I have to do is replace caps on the monitor chassis board. If I ever had a board problem I would have to troubleshoot it also. Do you recommend me having both of these meters? Or just one over the other?
Old dog new tricks thanks for the video just got me an esr meter seen you had one thanks a million it is 1000% faster to check a board keep up the great work hope you got through the storm alright all good here in Jax !!!!!!
Great instructional video. Thanks for sharing.
Cool tutorial. The cordless soldering iron that you use also looks cool! Can you also please tell us its brand and model.
Great video! I have the ESR meter you used. I’ll definitely be watching more of your videos! Cheers!
Thanks, I bought the msr going to help a lot in the auto computers I work on. Great tutorial!
very educational ! well explained ,Thanks for sharing your knowlages
Hey, really enjoy your show. Very interesting and informative. Thanks...keep up the good work.
Great video man! Thanks for all the videos you post! God bless.
I think it's pretty good to talk about electronik tools and how to use it... Thank you!
Like all your videos, very helpful. Just fixed a Samsung TV with blown caps and works good now. So thanks for the tutorials!
Notice you showed us the blown cap next to new cap, and the new cap was 'chebein' Chinese cap. Do you trust those caps? I'm very dubious about them along with chengx and capxon. Usually use rubycon and Panasonic FR/FM/FC.
Keep videos coming.
Thanks, your use of the MESR convinced me to buy one, I really did need one.
great video. very useful i learned a lot, thanks!
Thanks for informing those of us who no what an esr are meter is but not how to use it
Great video demos..
Two thumbs up!
Thank you, good review and tutorial. Very helpful. I will be fixing 60 inch TV which were lightning zapped at my client's place. Guess they don't needed and I can use one for living room.
Good job with the vid. Good info and good pacing.
thanks i got my new esr today will save a lot of time
Man you showing a great 👍 videos and the way how to explain the problems on a tv 📺 and how to find out which part is the problem is the best on you tube well thank you very much wish all the best, and you just earned my subscription.
Thanks for doing this video. I was able to fix my dish receiver. Two bad capacitors. Replaced them and it works fantastic now.
My dish 722k used to read the thumb drive that I had some of recordings on. Now it just gives read errors and I don't think the drive is the problem. The internal H/D is about full, which is why I off-loaded onto the T/D. Dish is of no help, they just want me to spend more money. Any ideas?
LOVE your videos! Simply can't watch enough.
Mack Garrison thanks, which Playlist are you watching TV repairs?
please repair some Apple Cinema displays
One of the Good Guys on You Tube; good def for 'pro bono publico' and TYVM.
Tampatec you are the best! I m from Slovenija and love to wach you
Dzevad Coralic thanks
@@TampaTec sir help me with the service code of Ls TV model sa 3209
great video..
ii have tcl smart tv and it's off by itself. do you think think the problem in the capacitors
Interesting, I like that mesr 100. It's like a high tech digital version of my old Heathkit component curve tracer IT-2232, which still works like new bty. Being able to test components while they are still on the pcb is a great help not to mention time saver.
how good a teacher is Tampa Tec!!! Extremely useful info well explained.
Thank you 🙏
I worked as a electronic technician for over 20 years and wish I could of had a capacitor checker like yours. Used the old method measuring the resistance both ways with a analog meter.
Just curious Robert, so you can measure them in circuit with that method?
@@DayClanTribe I have an ESR meter and most of the time you can check the ESR in circuit
Milliohm meter is good for checking shorts in capacitors in circuits without removing them
Analog multimeter is great too.
@@jariekstrom95 how do you check capacitors in circuits?
You can use an esr meter to pin point a short in circuit, because its a low ohm meter :) great video
you can also discharge the capacitor by setting your meter on the voltage setting and place the red needle/clamp on one end and the black needle/clamp on the other end and you'll also be able to see the discharge go down to O on your meter display and i feel this way you have of a chance of damaging the capacitor incase it might still be good
Excellent “how to” video!! Thanks for sharing with us rookies.
Awesome tutorial, this was a lesson I needed, for which I must say thank you. Now I think I am ready to check the capacitors in my old stereo.
Question TampaTec...can you leave the capacitor in the board and still check? That part isn't clear to me as I see that you removed the capacitor, then checked on the board.
@@mysteryjesus I think there are cases when you can, and cases when you can't. If a capacitor is wired in parallel with other capacitors, especially large value ones, there's no way you could test it without removing it. That might be the case in the smoothing circuit of a power supply, for example.
On the other hand, if you get a very low ESR value for a capacitor in circuit (e.g. less than 0.01 Ohms), and you can check that it's not wired to others, you can be fairly confident that you're actually measuring the ESR fairly accurately, and not some other aspect of the circuit it's in, because most of the other components would measure a lot higher than that. For a measurement that low, it would normally be something like a circuit trace, or a fuse, or a large value capacitor that was healthy.
For small value capacitors, there's probably no way to check them without removing them from the circuit first.
@@TooSlowTube Thank you for the response!
@@mysteryjesus You're welcome.
@tampatec thank you you’re a fantastic teacher
hey, i have the same fluke. its great. the rubber lcd connectors karked it but managed to find them cheap enough to get it back to action.
Great videos! learning a lot from you, Merry Christ-mas :-)
I learned a lot from your videos. Thanks tampatec
Great video! Is it common to get good ESR reading on the board and the cap still busted (way out of spec capacitance)? Or if you measure good ESR on board, can you usually trust that the capacitor is okay as a whole?
I like the video but I would just point out that the tolerance on most electrolytic caps is +/-20%. So if you chuck them when they are 10% away from stated, they might still actually be OK.
Great informative video thanks you made it easy to understand
Had a meeting with an instructor at a local technical institution, AV boards are re-capped every 5 years. The broadcaster has extra units to swap as each board is done😊
I re-capped all of my amplifiers with higher voltage and temperature, for increased headroom.
I can over volt them without issues.
I would blow up the audio input caps with high output line driver😮
Good plan to change them all, as they are typically designed to only have a 5 year lifespan in circuit.
They might work beyond that, but the electrolyte dries out.
Good advice 👍
Im learning from your videos thank you verymuch. i really liked how you expain it easly thnks im interesting to know to repair plasma tvs
Love it. Everything is so easy to understand...
Hi. Your video on the different ways of checking caps is great. I have a in-circuit cap checker made by Electronic Design Specialists, but its just for electrolytic caps and only has a lighted scale for result, no text display. Are either of the meters you used in the video good for checking other type caps like ceramic disk, tantalum, polypropylene etc., that have small values of capacitance? I have an old Radio Shack DMM (model 22-812) that could check capacitance, but I think the meter was damaged so its not reliable anymore. I'm just a repair hobbyist, mostly A/V receivers and a occasional LCD flat screen but I need to invest in some better equipment and I liked what you were using. Thanks
Thanks for the video TT. I was wondering how those capacitor ESR meters worked. I may invest in the model that you put in the description.
Good idea but remember you often get what you pay for too
Very Informative. Great job. Thank you. I was hoping to watch you do the whole repair : )
Feeding a frequency into a cap to check its value is referred to as “Xc” or “capacitive reactance” and the formula that the meter is using is 1/ 2 * 3.14 * Frequency * capacitance.
This formula gives you its resistance value when an AC signal is applied at a specific frequency.
great channel! I'm working on troubleshooting a microphone preamp and I think I'll get that ESR meter as the unit is over 20 years old. Thanks for your help!
Yep, Capacitors last about 10 years so if your preamp is bad and 10+ years old check the caps. 👍
Very nice teaching. You have good oratary skills. Thanks a lot for the valuable info.
awesome video immediately subscribed !
Loved the vid bro thanks so much I have 2 old tvs I never thought of fixing until I wanted to resell electronics lol thanks so much man
Thank you so much this made me understand a lot I’m getting into fixing circuit boards and selling them
hey nice vid ,I got the same esr meter some mths ago ....nice demo.......keep it up
I have three Fluke meters, and I also own the MESR-100 meter as well!
Thanks Great video.
Can this meter also use to check internal resistance of Li-ion battery.
Thanks just ordered the ESR meter for 54 bucks. Having the ability to check the capacitor will be perfect and save time.
I do have a question
I own the Fluke 17b+ and was wondering if the fluke 115 you mentioned is much better ? if so how?
any recommendations where to purchase capacitors cheap?
Thanks
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