Hi Joerg, good work so far. do you have any update on this?
Greetings Torsten On Tuesday 26 August 2008 14:22:54 Joerg Reisenweber wrote: > We found it's pin4 of JK4401 and only this pin that causes GSM-EMI-noise > issue. > We placed a ferrite bead to this pin, and it stops noise. Alas this isn't a > viable rework, as it is extremely fragile and doesn't fit into case. > See > <http://people.openmoko.org/joerg/GSM_EMI_noise/noise_stopped_by_athena_rew >ork/> > > We tried to find another way to place a bead in this rail, first result > (without bead yet), see > <http://people.openmoko.org/joerg/GSM_EMI_noise/noise_stopped_by_cut_pin4/> > This rework at least stops noise and should fit into case. It breaks > function of headset mic and hold-button, but keeps function of headphones. > We try to find a way to restore function of mic and button, based on this > rework. > > I will keep you updated. > Please note all this IS NO RECOMMENDATION FOR A REWORK, and we can't answer > any questions yet beyond what I've reported above. > > cheers > jOERG _______________________________________________ hardware mailing list hardware@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/hardware