Hey #Fediverse,
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Hey #Fediverse,
Need your help to recognize some electronics defect.
It seems the beurer massage gun I have is showing that it is continuously charging even when not connected.I opened it and I see that one resistor has blown up in half.
The problem I have is that I don't know which one should I get to replace it. I didn't find the pcb ref or design ofc.
Any ideas?
Yes its a shot in the dark, but who know :pUpdate :
Thanks for everyone who replied.
I doubt I am going to repair it since figuring out the blown up component and probably L2, and that's without a schematics to probe what should be working connected etc. :/ -
Hey #Fediverse,
Need your help to recognize some electronics defect.
It seems the beurer massage gun I have is showing that it is continuously charging even when not connected.I opened it and I see that one resistor has blown up in half.
The problem I have is that I don't know which one should I get to replace it. I didn't find the pcb ref or design ofc.
Any ideas?
Yes its a shot in the dark, but who know :pUpdate :
Thanks for everyone who replied.
I doubt I am going to repair it since figuring out the blown up component and probably L2, and that's without a schematics to probe what should be working connected etc. :/@YvanDaSilva the damage I see is to L2 which is an inductor. Whatever happened was pretty bad and it's not likely you can replace that, nor is it probably the problem: it's likely something else went wrong and vaporized that. If you're feeling lucky I can probably figure out which inductor to order from digikey.
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@ambraglow.org yep, might also be cooked.
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@YvanDaSilva the damage I see is to L2 which is an inductor. Whatever happened was pretty bad and it's not likely you can replace that, nor is it probably the problem: it's likely something else went wrong and vaporized that. If you're feeling lucky I can probably figure out which inductor to order from digikey.
@smellsofbikes I see :/
Well I guess it's over for this thing. -
Hey #Fediverse,
Need your help to recognize some electronics defect.
It seems the beurer massage gun I have is showing that it is continuously charging even when not connected.I opened it and I see that one resistor has blown up in half.
The problem I have is that I don't know which one should I get to replace it. I didn't find the pcb ref or design ofc.
Any ideas?
Yes its a shot in the dark, but who know :pUpdate :
Thanks for everyone who replied.
I doubt I am going to repair it since figuring out the blown up component and probably L2, and that's without a schematics to probe what should be working connected etc. :/Is the marking on the blown resistor still readable?
If not I think you would need to figure out what it's purpose was. Then you could check the reference design for the corresponding IC.
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Is the marking on the blown resistor still readable?
If not I think you would need to figure out what it's purpose was. Then you could check the reference design for the corresponding IC.
@lumiya it is not readable, it burned up :(
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@lumiya it is not readable, it burned up :(
Sounds like you would need to do some partial reverse engineering then.
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@lumiya it is not readable, it burned up :(
Just thought of another possibility. Maybe you'll find somebody online who already disassembled it. Like a teardown where you could check and see if it's the same PCB.
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Hey #Fediverse,
Need your help to recognize some electronics defect.
It seems the beurer massage gun I have is showing that it is continuously charging even when not connected.I opened it and I see that one resistor has blown up in half.
The problem I have is that I don't know which one should I get to replace it. I didn't find the pcb ref or design ofc.
Any ideas?
Yes its a shot in the dark, but who know :pUpdate :
Thanks for everyone who replied.
I doubt I am going to repair it since figuring out the blown up component and probably L2, and that's without a schematics to probe what should be working connected etc. :/First of all sorry for the many comments...
You mention charging issues and the blown Resistor is close to the "CN3303" (might be https://www.lcsc.com/product-detail/C3034873.html ) I found an English Datasheet for that
https://make.net.za/wp-content/datasheets/Consonance%20Elec%20CN3303%20Datasheet%20v2.1.pdfFrom the Charging issue as well as the seamingly larger footprint than the other resistors, I would assume you blew a Sensing Resistor. Could be "R_{CS}" Page 2 Figure 2.
Would also make sense as its close to the SOT23-3 "A07T" search results show that it could be a PMOS, and close/connected to a big coil "L2"I hope this helps 🙈 to figure out what value the resistor should have had.
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Just thought of another possibility. Maybe you'll find somebody online who already disassembled it. Like a teardown where you could check and see if it's the same PCB.
@lumiya I am searching
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First of all sorry for the many comments...
You mention charging issues and the blown Resistor is close to the "CN3303" (might be https://www.lcsc.com/product-detail/C3034873.html ) I found an English Datasheet for that
https://make.net.za/wp-content/datasheets/Consonance%20Elec%20CN3303%20Datasheet%20v2.1.pdfFrom the Charging issue as well as the seamingly larger footprint than the other resistors, I would assume you blew a Sensing Resistor. Could be "R_{CS}" Page 2 Figure 2.
Would also make sense as its close to the SOT23-3 "A07T" search results show that it could be a PMOS, and close/connected to a big coil "L2"I hope this helps 🙈 to figure out what value the resistor should have had.
@lumiya thank you very much!!
That's a start at least, more than what I had.
I'm also searching to see if someone else disassembled it, but it seems no :/ -
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