tenshun wrote:
oliver wrote:about noise filtering:
a very big capacitor (i'm using 1000 uF) on the 3V rail eliminates the hum and also the higher pitched hum/tone caused by the DMA interrupt almost completely.
there is still the very high pitched whine though. like the hum, it is constant and not affected by the volume setting, so it's not part of the pre-amp signal.Where did you connect the 1000uf cap? Did you connect it to the AMP AGB?
I did notice there is some noise after this mod i did.
Any help would be awesome!
I'm very interested in that too, it's just what my customized gba need to be perfect 