In that capacitor array, only 2 lines are entering One line from -ve terminal of polar capacitor. While the second line from +ve terminal of the polar capacitor I use 10 amp or 20 amps power supply with 1 volt to 1.2 volt maximum
Well these capacitors are in the supply line to ground, and the cpu has a set of ground pins. A different take on the same method, is to melt some rosin with your iron, over the caps, so the rosin smoke condenses on the cap and leave a white-ish layer. If you push 1 or 2 amps through at say 1v (you don't want to power on the cpu), the heat will turn that white coating into a liquid spot The other way which is far less visual, but not as time-consuming as the rosin method, is to apply your 2A, but get a cotton ear bud, dip it in ipa (or cigarette lighter fluid), touch the bud to the top of each cap, and if the ipa wetness evaporates quicker than the other caps then that is the faulty cap The easiest way is to apply your 2A current, and look at the board with a thermal camera, but the cheap 32x32 ones are rubbish, Blackview and Cat62 phone have fairly low ir pixel density too. You ideally want a 192x256 possibly with a macro lens, but doubt you will have much money left from $250 for an Infiray p2 pro Also don't start off with 20A, or use a short killer. This will find the weakest track on the circuit where the current flows, and fuse that track or component, but that may not be the shorted component. If you are doing this on a pcb, if you are unlucky, you now have 2 faults, if it is a cpu then often unfixable. Use 1A steps until you feel the heat, not with your finger tips (skin too thick, takes too long for your brain to register heat, and not that sensitive), but use the back of your fingers
Candle wax could be used successfully. Prepare a candle dissolved in acetone or gasoline or whatever... Use a brush.... Connect the circuit to a low voltage without the need for high amperage. The wax will melt first in the place of the defect, because it heats up first. We also have the modern method, this one with wax was used in the past. Now we have thermal cameras...
Humble thanks and best regards 💕 for your valuable comment Yes candle wax Hand sanitizer gel Vaseline IPA Low temperature melting soldering flux Freezit2000 Thermal camera IR Camera IR temperature logger Microvolt comparison Milliohm comparison Are multiple tools and tricks to be used to point out the suspected component
I think no Best test tool as per my experience is HP-3456 multimeter using 4 wire measurement in resistance mode to compare resistance between components in parallel Or To compare voltage drop across the components in parallel But this multimeter is much expensive
Sir,I didn't understand how you found the shorted capacitor,I just noticed that you said you used the ground or negative of the supply capacitor(SMT aluminum)Thank you for sharing🎉🎉🎉
The best value is 1 volt to 1.2 volt with correct polarity (we can use 5-6 D size ni-cd cells in parallel or alkaline cells for getting 1.5 volt) We can also check the datasheet for that closest voltage sensitive IC (in this circuit situations. The microprocessor is closest voltage sensitive part) The maximum allowable vcc voltage will the highest possible voltage can be injected
Wouldnt a lower current also reveal the short circuit capacitor by using an infra red camera to observe which component is overheating? My concern is that 10A may damage small width interconnecting tracks.
Infrared camera is also a great option Spraying freezit2000 is also good Applying low temperature melting flux is also works good Moreover 10amp power supply will not damage the tracks As the power rail tracks are for designed for high current ratings
@@HaseebElectronicsIf it is a linear power supply, in this way, sometimes you risk damaging the final transistors, too much voltage falls on them (the difference between input and output), this multiplied by 10 A gives as a large heating. If it is switching powersuplay, it is possible… Instead of that, use wax😃
I wonder if with a milliohmmeter you can measure the difference in resistance of the PCB trace, until you get to the faulty part... I'm going to do a test, I have the MESR 100, I'm going to try measuring the trace from the PCB to see if it does the diference to a few milliohms
If we will not install 1 or 2 capacitors. It can be compromised. Because the capacitance values is always 120-150% higher than the required value But it is best to install the capacitor to keep the system in good working free from any ripples
Ok, I understand that only 2 lines enter: one line from the negative terminal of the polar capacitor, while the second line from the positive terminal of the capacitor, but, since the negative terminal of the polar capacitor is short-circuited, won't it give continuity to the positive terminal? Thank you and excuse me, English is a translator.
@Optionade these smd MLCC are very small, these cannot blast with high sounds If we try to eliminate polarized capacitors That will create huge blast sounds, it's pieces fly randomly with joy at the time of blast 😂😂😂
Curious how to determine negative line in that capacitor array. Also, how to determine correct current to use? Thank you greatly!!!!
In that capacitor array, only 2 lines are entering
One line from -ve terminal of polar capacitor. While the second line from +ve terminal of the polar capacitor
I use 10 amp or 20 amps power supply with 1 volt to 1.2 volt maximum
@@HaseebElectronics did you meant mA or full an Amper?
Not mA he means say A
Well these capacitors are in the supply line to ground, and the cpu has a set of ground pins.
A different take on the same method, is to melt some rosin with your iron, over the caps, so the rosin smoke condenses on the cap and leave a white-ish layer. If you push 1 or 2 amps through at say 1v (you don't want to power on the cpu), the heat will turn that white coating into a liquid spot
The other way which is far less visual, but not as time-consuming as the rosin method, is to apply your 2A, but get a cotton ear bud, dip it in ipa (or cigarette lighter fluid), touch the bud to the top of each cap, and if the ipa wetness evaporates quicker than the other caps then that is the faulty cap
The easiest way is to apply your 2A current, and look at the board with a thermal camera, but the cheap 32x32 ones are rubbish, Blackview and Cat62 phone have fairly low ir pixel density too. You ideally want a 192x256 possibly with a macro lens, but doubt you will have much money left from $250 for an Infiray p2 pro
Also don't start off with 20A, or use a short killer. This will find the weakest track on the circuit where the current flows, and fuse that track or component, but that may not be the shorted component. If you are doing this on a pcb, if you are unlucky, you now have 2 faults, if it is a cpu then often unfixable. Use 1A steps until you feel the heat, not with your finger tips (skin too thick, takes too long for your brain to register heat, and not that sensitive), but use the back of your fingers
👍@@karltest1314
I've replaced quite a few SMD capacitors but never found a bad one inside the CPU socket! Great video. Thanks for sharing!
You are right these X7R CAPACITORS have less failure rate than the Z5U materials
It's failure rate is very low
Genious Trick! Thanks Mister Haseeb!
You are most welcome
Salutes 💕
❤🎉 starost sve veća,a Vas uvek gledam.sBozivoj volji
Please, more of those tricks! 👍
sure. i will try my best to share it
Informative vedeo. Thank you so much.. God bless you.
You're welcome and stay blessed.
Candle wax could be used successfully. Prepare a candle dissolved in acetone or gasoline or whatever... Use a brush.... Connect the circuit to a low voltage without the need for high amperage. The wax will melt first in the place of the defect, because it heats up first. We also have the modern method, this one with wax was used in the past. Now we have thermal cameras...
Humble thanks and best regards 💕 for your valuable comment
Yes
candle wax
Hand sanitizer gel
Vaseline
IPA
Low temperature melting soldering flux
Freezit2000
Thermal camera
IR Camera
IR temperature logger
Microvolt comparison
Milliohm comparison
Are multiple tools and tricks to be used to point out the suspected component
Excellent! Mashallah
Good job bro
Many many thanks
Essa técnica é muito eficiente, eu já utilizo ela a muito tempo.
Abraços do Brasil.
🇧🇷
Good video how to find faulty component!👍
Very informative content. Thanks.
Another good tutorial 🎉
Hi thank you for another informative video
It is my pleasure
Excellent thanks for sharing❤❤❤
Regards 💕
Thank you very much
Thanks for sharing 👍
Thank you sir for sharing
can you use non-contact voltage detector to quickly check if power disconnected circuit board has any capacitors with voltage remaining ?
I think no
Best test tool as per my experience is HP-3456 multimeter using 4 wire measurement in resistance mode to compare resistance between components in parallel
Or
To compare voltage drop across the components in parallel
But this multimeter is much expensive
Sir,I didn't understand how you found the shorted capacitor,I just noticed that you said you used the ground or negative of the supply capacitor(SMT aluminum)Thank you for sharing🎉🎉🎉
Yes, Usefulness 👍
great tip I would be tempted to cut the track for safety
Good work
Thanks for sharing
Beat regards 💕
How do we determine the max voltage to be injected? I understand we should not exceed 3.3 v DC in this case
The best value is 1 volt to 1.2 volt with correct polarity (we can use 5-6 D size ni-cd cells in parallel or alkaline cells for getting 1.5 volt)
We can also check the datasheet for that closest voltage sensitive IC (in this circuit situations. The microprocessor is closest voltage sensitive part)
The maximum allowable vcc voltage will the highest possible voltage can be injected
very effective
Thank you. 🧿🧿❤❤
You're welcome brother
Nice sir👌👍
Beat regards 💕
Wouldnt a lower current also reveal the short circuit capacitor by using an infra red camera to observe which component is overheating?
My concern is that 10A may damage small width interconnecting tracks.
Infrared camera is also a great option
Spraying freezit2000 is also good
Applying low temperature melting flux is also works good
Moreover 10amp power supply will not damage the tracks
As the power rail tracks are for designed for high current ratings
How find a custom build ic pin function
Hi haseb, can you inject 1. Volt in this case to find the short
yes should be low voltage high amper
How did you injected voltage and what tool did you used? please explain it in the next video
What voltage and current you applied
I use 1.2 volt, 10 ampere power supply
@HaseebElectronics which power supply you use
I use power ten 0-48 vdc, 0-10 ampere power supply
@@HaseebElectronicsIf it is a linear power supply, in this way, sometimes you risk damaging the final transistors, too much voltage falls on them (the difference between input and output), this multiplied by 10 A gives as a large heating.
If it is switching powersuplay, it is possible…
Instead of that, use wax😃
I wonder if with a milliohmmeter you can measure the difference in resistance of the PCB trace, until you get to the faulty part...
I'm going to do a test, I have the MESR 100, I'm going to try measuring the trace from the PCB to see if it does the diference to a few milliohms
Great one.. Sir, if we do not restore a good Capacitor After removing the damaged one does it have any negative impact?
If we will not install 1 or 2 capacitors. It can be compromised. Because the capacitance values is always 120-150% higher than the required value
But it is best to install the capacitor to keep the system in good working free from any ripples
Master!++++
👍
❤❤
Ok, I understand that only 2 lines enter: one line from the negative terminal of the polar capacitor, while the second line from the positive terminal of the capacitor, but, since the negative terminal of the polar capacitor is short-circuited, won't it give continuity to the positive terminal? Thank you and excuse me, English is a translator.
10.😊
Temperature probe will help us to find faulty components 😊 We don't need to wait for the blast 😊😊
Or thermal camera
You are right
Thermal camera
Low temperature melting flux
Freezit2000 spray
Hand sanitizer, Vaseline
Different tricks work in this fault condition
@Optionade these smd MLCC are very small, these cannot blast with high sounds
If we try to eliminate polarized capacitors
That will create huge blast sounds, it's pieces fly randomly with joy at the time of blast 😂😂😂