-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Somebody in the thread at some point said:
|> | Hmm... why does it distort the interal speaker? |> |> With the caps the transducer experiences -~1.5V .. +~1.5V worth of |> deflection "down" and "up"; without the caps it experiences 0 .. ~3V |> worth all "up". So it's physically unable to deflect enough linearly I |> would think. | | Please note the internal speaker isn't connected via the 1uF capacitors. | See "SPK LOCATION:41XX" page6 schematics GTA02. That's true. | A short to GND when applying the silver-varnish on the other hand might cause | the distortion you have heard. It's generally possible (you don't suggest what is shorted) but I wonder if it can be more that there is 65R DC path to 0V on U4101 LEFTOUT that wasn't there before the caps were shorted in the case the headset is in. Is the internal speaker still distorted if you remove the headset from the socket? - -Andy -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iEYEARECAAYFAkkwPYoACgkQOjLpvpq7dMolTQCeM6Jm5hNaEj/I53gJidtHYC7J i4IAnjKDLROzUfqLensGiDUFzBgH1g0/ =sdiB -----END PGP SIGNATURE----- _______________________________________________ hardware mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/hardware
