MintyPi V3 Crackling noise from speaker and headphones

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Gizard
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MintyPi V3 Crackling noise from speaker and headphones

Post by Gizard » Sat Jan 18, 2020 1:27 pm

I have contiunity everywhere I should according to this guide: https://www.sudomod.com/wiki/index.php/ ... n_Problems
But i just get crackling noise. Does anyone know what the problem could be?
Check out my bluetooth speaker in an altoids tin! https://sudomod.com/forum/viewtopic.php?t=7274

Singlespeednut
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Re: MintyPi V3 Crackling noise from speaker and headphones

Post by Singlespeednut » Sat Jan 18, 2020 9:00 pm

I have the exact same issue.

Edit. Nevermind. Had issue with speaker. My bad.
Last edited by Singlespeednut on Wed Jan 22, 2020 9:42 am, edited 1 time in total.

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Helder
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Re: MintyPi V3 Crackling noise from speaker and headphones

Post by Helder » Sun Jan 19, 2020 8:29 pm

Did any of you use Flux when assembling the Pi to the controller PCB? and post a picture of the Pi and controller soldered so I can get a good look if there is flux as I suspect this is the issue.
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Re: MintyPi V3 Crackling noise from speaker and headphones

Post by Gizard » Tue Jan 21, 2020 4:39 pm

40693291-46E9-4F3F-9AC3-A9ACAF5BE9B1.jpeg
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53BF4FC5-79EF-47F6-A168-4A677A02B8D6.jpeg (2.52 MiB) Viewed 4568 times
C4A8AD37-8DF2-481E-AAE9-8B7257D0E4CD.jpeg
C4A8AD37-8DF2-481E-AAE9-8B7257D0E4CD.jpeg (2.79 MiB) Viewed 4568 times
I used flux throughout and chip-quick on the bottom left.
Last edited by Gizard on Tue Jan 21, 2020 5:20 pm, edited 1 time in total.
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Re: MintyPi V3 Crackling noise from speaker and headphones

Post by Gizard » Tue Jan 21, 2020 4:42 pm

Helder wrote:
Sun Jan 19, 2020 8:29 pm
Did any of you use Flux when assembling the Pi to the controller PCB? and post a picture of the Pi and controller soldered so I can get a good look if there is flux as I suspect this is the issue.
I meant to hit reply; this will send you a notification.
Check out my bluetooth speaker in an altoids tin! https://sudomod.com/forum/viewtopic.php?t=7274

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Re: MintyPi V3 Crackling noise from speaker and headphones

Post by Helder » Fri Jan 24, 2020 7:18 am

I see flux residue all around the pi GPIO. Get some soft brush like an old tooth brush and soak it in alcohol and clean it off and try to get it in between the pi and pcb.

Might have to use some compressed air to get the alcohol in between the boards then let it dry out and see if it changes anything.

Flux people are using is causing tons of issues because the flux being used REQUIRES you to clean it off with alcohol. Use only No Clean Flux if you use any kind of flux which isn't even needed for this to be honest.
Chat with me and other members On Discord

Don't contact me about obtaining my board files (as you will not get them). If my Boards or PCB Kits are sold out, they will be restocked as soon as I can get them and there is demand for them. You can join the mailing list on my Website to be notified when they are available.


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Re: MintyPi V3 Crackling noise from speaker and headphones

Post by Gizard » Mon Feb 15, 2021 3:46 pm

Helder wrote:
Fri Jan 24, 2020 7:18 am
I see flux residue all around the pi GPIO. Get some soft brush like an old tooth brush and soak it in alcohol and clean it off and try to get it in between the pi and pcb.

Might have to use some compressed air to get the alcohol in between the boards then let it dry out and see if it changes anything.

Flux people are using is causing tons of issues because the flux being used REQUIRES you to clean it off with alcohol. Use only No Clean Flux if you use any kind of flux which isn't even needed for this to be honest.
I did this, and I got audio. However, the audio is super crackly. I know the speaker is not blown because the audio is crackly with headphones on. I've tried skipping the headphone jack, by the way.

Thanks in advance.
Check out my bluetooth speaker in an altoids tin! https://sudomod.com/forum/viewtopic.php?t=7274

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