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france

works fine for me with a big one. I just removed some plastic of the shield.
The noise is acceptable now.

Last edited by turboninja (Sep 25, 2018 6:54 pm)

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Since 32 pin and 40 pin GBAs are different does anyone know what holes to use with the 32 pin board? I included a pic of the boards. Upper one of 40, lower one is 32.

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Sweden

PriMieon: I did like this on a 32 pin GBA: soldered the positive capacitor leg to the power switch pin with a C above it and the negative to the ground pad to the right next to the switch.

I guessed which holes to use (close to the ones on the 40 pin instructions) and traced them to the power switch with a multimeter. Not 100% sure it’s correct but it reduced the noise a bit I think. If this is wrong please let me know, see it as an experiment for now smile.

Here is another method that I think seems better, haven’t tried it though. https://support.retrosix.co.uk/support/ … -gba-audio

PriMieon wrote:

Since 32 pin and 40 pin GBAs are different does anyone know what holes to use with the 32 pin board? I included a pic of the boards. Upper one of 40, lower one is 32.

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Paris, France
Ledfyr wrote:

PriMieon: I did like this on a 32 pin GBA: soldered the positive capacitor leg to the power switch pin with a C above it and the negative to the ground pad to the right next to the switch.

I guessed which holes to use (close to the ones on the 40 pin instructions) and traced them to the power switch with a multimeter. Not 100% sure it’s correct but it reduced the noise a bit I think. If this is wrong please let me know, see it as an experiment for now smile.

Here is another method that I think seems better, haven’t tried it though. https://support.retrosix.co.uk/support/ … -gba-audio

PriMieon wrote:

Since 32 pin and 40 pin GBAs are different does anyone know what holes to use with the 32 pin board? I included a pic of the boards. Upper one of 40, lower one is 32.

Thank you for sharing this. It might be something I'm gonna have a look into
I especially found this very interesting:

RetroSix wrote:

[...]I plan to create a CleanPower board for the GBA in future, making this fix irrelevant then, but until then you will need to place a solid state capacitor (not a normal aluminium capacitor) on the VDD2 rail. Solid state capacitors have lower ESR than the aluminium capacitors and that is key to the filtering working.

Last edited by ScanianWolf (Sep 28, 2020 12:24 pm)