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3 Ways to Check Capacitors in Circuit with Meters & Testers

3 Ways to Check Capacitors in Circuit with Meters & Testers

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 -
MESR-100 V2 Auto Ranging in-Circuit ESR METER-
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-


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Tags: smd capacitors

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  1. Date: May 15, 2018 at 10:38
    Author: Felix R

    now i know what i want as my birthday present 🙂

    I have a lot of dead PC LCDs and PC Hardware, but since I cannot see any physical damage, I cant repair it

  2. Date: June 2, 2018 at 20:12
    Author: Anton Malhin

    These are too expensive, where can I buy a cheap Chinese multimeter that the Hindi guys like so much? I'm looking for something simple so that the readings will be inaccurate and slow and I will have to change it every few months.

  3. Date: June 10, 2018 at 03:29
    Author: Wahaj Syed

    Why does replacement capacitor (220uf 10V) keeps popping? is it because of bad quality or something else?

  4. Date: June 21, 2018 at 21:34
    Author: Jeff Chartier

    I'm confused. Should a good cap have a slightly lower or higher capacitance when tested? For example I just tested a really small 6.3v / 10uf and it's measuring at 12.4uf so that's roughly 10% higher than spec. Does this mean it's good?

  5. Date: July 1, 2018 at 16:00
    Author: 1Blastarr

    Thanks, your use of the MESR convinced me to buy one, I really did need one.

  6. Date: July 3, 2018 at 20:52
    Author: Ron Thompson

    My friend has a 46" tv it runs for a hour and shuts off , where should I look first ,he thinks the tv has some sort of timer that has been set,I don't think that's it,I did a visual on the caps,all look good ,he doesn't have a remote for it .I don't no if that matters .but need a place to start,do you have a video of yours that explains why it shuts off after a hour.

  7. Date: July 5, 2018 at 23:39
    Author: Theatre Mad

    Are the capacitors connected or related to the HDMI inputs. I have 7 or 8 hdmi inputs on the back of a Marantx 8802 pre/pro and two of the inputs don't show a signal and have tried everything to get a signal. Was just wondering if the problem could be a blown capacitor.

  8. Date: July 6, 2018 at 01:33
    Author: Robb 95

    I found my TV in a barn…lol. I need to test wax capacitors on a RCA 9t240 and it would be great to test them in board…though its not really a board either…more a base

  9. Date: July 20, 2018 at 21:49

    I have a LG 60lb7100 UT and have what seems a power issue. Is there a common trait to look for? Mine shuts off within an hour of turning on and will not come back on for about the same amount of time. Any knowledge shared will be appreciated.

  10. Date: August 10, 2018 at 11:29
    Author: youpattube1

    You padded this video for camera time. You could have condensed the first 9 minutes into 1, then done what the video purports to do.

  11. Date: August 23, 2018 at 06:47
    Author: Richard Duque

    Very professional and inspiring. Audible and easy to understand, well educational and impressive. Continue your passion and many will pursue your dynamic approach.

  12. Date: September 2, 2018 at 10:29
    Author: keithspence

    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

  13. Date: September 3, 2018 at 23:33
    Author: Larry Shaver

    whgen the resistance on a capacitor goes up does that cause it to stop working altogether?

  14. Date: September 5, 2018 at 01:15
    Author: rob jasmin

    Oh btw caps in power supplies are many times used in series to multiply the capacitance ..especially in switchers

  15. Date: September 18, 2018 at 15:11
    Author: nzeches

    6:15 the 250v don’t “pass through” the capacitor. This is rated voltage across the dielectric material; technically it will not overheat then pop due to voltage, but dielectric will breakdown (at some voltage well above the 250V…) and lose its insulating properties (hence become conductive and burn…)
    On the other hand excessive ESR will result in heating of the cap, which will further deteriorate the electrolyte and can cause dielectric failure.

  16. Date: September 19, 2018 at 19:37
    Author: Google User

    If you are not familiar with electronics, do NOT start touching a bunch of capacitors – a capacitor will discharge into YOU if handled improperly, which results in a (possibly LETHAL) shock!

  17. Date: September 20, 2018 at 17:42
    Author: thark thax

    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.

  18. Date: September 21, 2018 at 20:14
    Author: WaveAction777

    If one discharges a large capacitor from a TV and it sparks, is it still OK to use, or does it get destroyed because of the big spark?

  19. Date: October 4, 2018 at 21:04
    Author: beto blas

    Hi I have a problem my smart tv has a small long hole like 3 lines are burn but I can still see My tv bit the left side of the tv is dark can I still fix it????

  20. Date: October 6, 2018 at 08:38
    Author: cowboy cowboy

    About those modern solid state capacitors,they won't pop out when broken right?And those surface mounted capacitors are even smaller,can we use the same equipment as this video to test them too?

  21. Date: October 7, 2018 at 03:48
    Author: Tony Gushlaw

    You got any tips for checking transistors while in circuit with ohm meter? I watched a guy check them on another video, but he didn't explain just grunted a lot and pointed. Don't think he spoke English. I got bad zsus board, that had some bad solder joints and I believe some of the transistors are shot which caused fuse to blow. I repaired solder joints on two boards and ordered fuse, but still need to check transistors. Haven't checked caps with meter, but visually they look good.

  22. Date: October 16, 2018 at 01:29
    Author: maiky rivera

    Tampatec can you help me with my ps4 pro it got wet now it wont turn on at all can it be the powersupply or can it be the Motherboard plese help me

  23. Date: October 20, 2018 at 07:15
    Author: Daniel Berei

    That is a very bad way to discharge caps. First you could accidentally touch the pliers uninsulated bit, and what are the chances that you touch both terminals at the same time? If you ever programmed a microcontroller and a switch, you know that chances are very low.
    Second, discharging like that, a fully charged capacitor will suffer because the fast discharging.

  24. Date: October 20, 2018 at 10:01
    Author: R M

    For 5 minutes you seemed like doing promotion for the Fluke and Signstek. Action dude Action and talk less ….

  25. Date: October 25, 2018 at 17:25
    Author: kapil pawar

    Capacitance meter is good or the resistance ? Reading 921uf against the actual capacity of 680uf ? How is it possible ?

  26. Date: October 27, 2018 at 04:33

    If capacitor is kept unused for couple of months or few years does it effect it's performance, Wats expiry date or shelf life

  27. Date: October 29, 2018 at 04:34
    Author: Tony Nameless

    So MESR is not as good as fluke since fluke tells you actual capacity where as MESR shows only resistance ?

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