How to test or measure SMD capacitors on the PCB / on circuit measurement free electronics training

Equipment sponsored by Siglent Technologies EU:

Capacitance meters showed: (...and you help the Channel with a little commission!)

Geekcreit® LCR-T4 12864 LCD Graphical Transistor Tester Resistance Capacitance ESR SCR Meter

XC6013L Digital LCD Display Capacitor Capacitance Meter Tester

The following video is about how to test or measure a SMD capacitor or a group of capacitors on the PCB without to remove it. It is know as onboard test or on PCBA measurement.
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My gear:
- Siglent SDS1204X-E 200MHz Digital Storage Oscilloscope Sponsored by SiglentEU dot com
- Siglent SDG2042X 120MHz Function/Arbitrary Generator Sponsored by SiglentEU dot com
- Uni-T UT71C 4000 Counts True RMS Multimeter Sponsored by Vitacom dot ro & Uni-T
- Uni-T UT502 Insulation Resistance Tester
- Fluke 8600A 4, 1/2 digit, Digital bench top Multimeter
- NEWCASON XC6013L Capacitance meter
- LCR-T4 component tester (1&2)
- HP8922M 1GHz Spectrum Analyzer (OPT 1, 6 & 10 installed)
- LTDZ 4.4GHz Spectrum Analyzer
- NanoVNA H4 1.5GHz Vector Network Analyzer
- 1.7GHz UV HF RTL-SDR Tuner Receiver
- ADF4351 4.4GHz RF Signal Generator
- HEATKIT IG 42 RF RF Laboratory Generator
- ZHAOXIN CD Power Supply TXN-1502D (1&2)
- GORDAK 952 SMD Rework Soldering Station (1&2)
- RADIOSHACK 22-812 Digital Multimeter
- MIYAKO 890G Auto DMM
- DT-830B Multimeter
- TM902C Thermometer
- TDGC2A 0.5KVA Auto-transformer
- HS1010 Light Meter
- ZOYI ZT102A Automatic Portable Digital Multimeter Sponsored By ZOTEK
- RIGOL DSO1051 50MHz Digital Storage Oscilloscope
- FG-050 Low Frequency Function Generator 65.5KHz
- DATA PRECISION 2480R True RMS 4, 1/2 digits bench top multimeter (1&1)
- BRYMEN BM318 Automotive DMM
- STEREN PROAM MUL-280 Digital Multimeter

[micarifamily]

Amazing mentoring and less burnt components thank you for showing what the " experts do not"....great video!!

[rolandberendonck]

I am still a rookie in electronics and and I like your video's very much. You are a very good teacher! 👍👍 Thank you for all your uploads and sharing your knowledge and passion 🙂

[decaalv]

Nice lab. I studied electrical engineering at an ABET certified school and this topic was never explained so clearly.

[marinvremes]

Hi there, thanks for such valuable information. Quick question, what's the brand of that $40 microscope you where talking in this video. I have a £40 one but with much much poor resolution comparing with the one you have. Thanks

[yassineben]

True the right way it to use a clip to ground the multimeter and unse one lead only for probing, very good video

[skilledhiko]

Awesome course you give us BOB. Keep it up. This technique is quite useful thanks👍

[zomaardan]

Hello. So the line you check to inject you wire to ground to protect?
Or an random groundpoint?
So many questions.

[AirmanCS]

I have 0 studies on electronics but I have always fixed stuff(who knows how lol), but I just had enough on how to know this numberless capacitors values, your video made it very CLEAR! I even understood what you ere doing with the oscilloscope, I saw you had courses to learn about electronics repairs and im very interested where can I learn more?

Y en español porque me di cuenta que hablabas español para que lo lean otros :P

Yo tengo 0 estudios de electronica, pero siempre he logrado arreglar circuitos si no me falla algo muy especializado (quien sabe como xD), pero ya tenia suficiente con estos capacitores que no dicen nada y me encontré tu video, me quedo super claro! Inclusive entendí lo que hacías con el osciloscopio, aparato que nunca he manejado en mi vida :P. Vi que dan cursos de electronica y me interesa mucho, donde puedo conseguir mas información?

[brucewalker]

That’s nice. If only everyone had all the fancy equipment

[XtianApi]

Great video but I'm a little confused at how the function generator and the oscilloscope are connected

[novatoagarioslayer]

Greatly appreciate the share of this unvaluable information and the priceless advice. I was always wondering how to know if a capacitor stills on the range of acceptable values and not just if it's just "Open or short circuited".
👍 + sube + a sincere thanks Bob.
Bless.

[Frzen]

any cheap ways of generating the 1vpp @ 100 hz like you did? I have to drop 500$ otherwise D:

[이기정-jh]

hi Bob . at 12:55, you guess capacitance of the capacitor. how to say it's one microfarad?

[marvellover]

Bro can I use same color and same size ceramic smd capacitor . Actually Mera bike abs ecu water damage ho gaya iska board diagram nahia hm be pura all smd check Diya no short-circuit but one dark brown color ceramic smd on ecu board it's damaged one point . So I couldn't calculate the value of the smd capacitor . Than what will do to replace . Please help bro . This smd capacitor on board no value no marks are mentioned . After I searched on Google it can any side ceramic capacitors

[leang]

how do we test or measure smd capacitors on analog oscilloscope but not digital oscilloscope?

[Martin-otxj]

Hi there, please upload video about laptop repairs if is possible for you . because your explanation is very simple and perfect . thnx

[energychaser]

Good video good application of time constants .

[khaliqmk]

Hi during this checking do it need power supply to the board?

[thorspoczta]

Usually you want to know what capacity had broken capacitor not good one.

[tommasogrieco]

Hi Bob, thanks for the very interesting video, can I ask you a question!?, If one does not have an Oscilloscope there is a procedure to do these calculations, how did you do it? Thanks Bob.