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

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Equipment sponsored by Siglent Technologies EU:
www.siglenteu.com/digital-osc...
www.siglenteu.com/waveform-ge...
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
www.banggood.com/Geekcreit-LC...
XC6013L Digital LCD Display Capacitor Capacitance Meter Tester
www.banggood.com/XC6013L-Digi...
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.
If you liked the video or if it was worthy to you, don't forget to give a LIKE. You can also Subscribe to the Channel for more interesting videos about electronics workshop.
Thanks for watching!
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

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Опубликовано:

11 июл 2024

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Комментарии : 61

@micarifamily1 3 года назад

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

@rolandberendonck3900 3 года назад

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 🙂

@skilledhiko329 3 года назад

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

@taylorsharp5928 3 года назад

Thank you for sharing your knowledge, great video!

@nsknyc 3 года назад

Bob, thank you for another great video.

@decaalv 6 месяцев назад

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

@linuxacc7366 3 года назад

Thanks for teaching me something new.

@loosemouthcowboy4790 2 года назад

These are really good tips thanks.

@yassineben8033 2 года назад

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

@gearstil 3 года назад

Great tip and very useful!

@novatoagarioslayer 8 месяцев назад

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.

@user-lx9ye4ik2v 3 года назад

you are a great teacher

@marinvremes5702 3 года назад

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

@raster8501 2 года назад

Thanks sir for sharing your tips and idea

@tommasogrieco3666 3 года назад

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.

@energychaser Год назад

Good video good application of time constants .

@16mmDJ 2 года назад

Love you microscope! Brilliant!

@user-dp2ru6vh2w 8 месяцев назад

Avery nice explanations..good life you deserve .thank you somuch

@ponsukpodsuwan 6 месяцев назад

Thank you for all your

@fatherloz2800 2 года назад

Hello, super interesting! (I just Subscribed : )) Small question, how do you know which is negative and positive on the double connections of the BNC that connects to the probe leads? Does it matter? Like right now the black is next to the Oscilloscope and the red is front of it. What occurs if those were swapped ? Thanks!

@giorgostexnikos6976 2 года назад

amazing video

@zomaardan 3 года назад

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

@DjRicolaz0328 2 года назад

Wow amazing,, God bless you sir,,new subscriber 🤗

@mehmetjohson8878 2 года назад

Thank you master

@Martin-ot7xj 2 года назад

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

@SajalSomodderRoni Месяц назад

So Wonderful

@javierpineda6705 3 года назад

Que buen video saludos

@AirmanCS 3 месяца назад

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?

@brucewalker1908 Год назад

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

@gabrielmusonda107 2 года назад

Nice. Teacher

@khaliqmk3617 2 года назад

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

@user-bh3vn5ry4i 2 года назад

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

@leang2157 2 года назад

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

@XtianApi 4 месяца назад

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

@zoozolplexOne 2 года назад

cool !!

@cesarespinoza9923 3 года назад

Buenos tardes adjunto envío el saludo de la forma de información del vídeo pero quería saber si es posible ver en español gracias

@Fr0zen14 Год назад

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

@JR-zw2vb 2 года назад

Urrrg. now I have to start learning math from the beginning, and buy equipment too!

@abdrahman-fh1se Год назад

THANK YOU. but also, with this method and this Matos , we are still in the (probably ..)

@lynchdemartini 2 года назад

2:14 I will need to attach a 50 ohms resistor to that port or it's built-in the machine?

@bob.kalpon1398 2 года назад

Hi! If your Function Generator has 50 Ohms internal resistor, you don't need it. If you don't know your internal resistor, 600 or 1 Kilo ohm you have to make the measurement in the output of the function generator and add the resistor or to use the voltage divisor formula.

@remycricco 3 года назад

Hello Can you please share the brand and ref of your nice 40usd ‘microscope’ as the quality is really good ? Thanks

@markmutahi1501 3 года назад

Which microscope did he use?

@hardkore360 2 года назад

@@markmutahi1501 the "microscope" is a camcorder lol

@tinkertom3683 2 года назад

I've started my journey into the world of electronics and the first question I have is how can we find the values of a multilayer ceramic capacitor that is shorted without schematics??

@hardkore360 2 года назад

I'm in the same boat as you, I've been able to find similar capacitors on similar banks of the same circuit type on my board to use as a reference, using those capacitors "should" give you a good estimate to replace the shorted cap, another tip is to download the datasheet for the IC that is tied to that capacitor circuit, typically the vendor provides reference schematics that will provide recommended capacitor and resistor values.

@hernanlizarraga2351 3 года назад

Perdón mí ignorancia pero ya salió este video en español?

@thorspoczta4436 13 дней назад

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

@shadowopsairman1583 Год назад

Smarter than most who want to buy a microscope lol

@warunakumara7671 7 месяцев назад

WHAT DOES e REPRESENT IN THE FORMULA

@valtbn Год назад

I will ask a question that I think I know the answer but... What if the capacitor is dead? There is no way to know what is it's value right? (Assuming we don't have the schematics of the PCB....)

@zaynemercier8206 2 года назад

That's the most amazing 40$ microscope I've seen

@user-yx6zy3ri6b 6 месяцев назад

Why not simply use a dmm?

@theanonymous9110 3 года назад

I still can’t figure out ho to find what little capacitor is causing my motherboard not to power up, there’s a bunch of them beeping, I wish someone on RU-vid made a video starting from the power and working through each component trying to find what one is making the other ones not work... I’m going to have to change each one of them until they are all not beeping anymore then hopefully my laptop will boot up again

@hardkore360 2 года назад

typically one lead of the capacitor is usually tied to ground, if that's what you are referring to then it's most likely not the cause of your power up issues. However if they are shorted to ground then you only need to replace those. ALL of them should not be shorted that's very rare for that to happen.

@rejarvaco3088 Год назад

Sir can you help me

@yakatdookith205 2 месяца назад

This is complicated like hell! It would be more easier for me to desolder the capacitor then test it with a multimeter😂

@swedensy 6 месяцев назад

When you try to look too smart you. A basic multimeter has capacity meter.!!! Just set on capacity measurement mode and put probes on the capacitor.

@fakharabbas-dn8nm Год назад

Hello

@warunakumara7671 7 месяцев назад

VALUE R DOES NOT REPRESENT THE INTERNAL RESISTOR OF THE FUNCTION GENERATOR THINK ABOUT ESR VALUE ITS THE INTERNAL RESISTANCE OF THE CAPACITOR COMPLETELY WRONG EXPLANATION