The sound related pins are as follows: 67 +8 clean for sound output 70 +5 V power for sound out 71 Sound Out right 72 Sound Out left 73 Right input signal from external microphone 74 Left input signal from external microphone 148 External microphone plugged in 149 No connect (ext. line or microphone level) 150 External speaker plugged in I realize that this list seems incomplete and somewhat confusing and contradictory. It is lifted directly from a technical document that was none to clear itself. I can likely dig up the actual document if anyone is interested. I was working on this same idea for a while. I believe that you only need to tap 71, 72, and Gnd for the actual sound signal and then either ground 150 or assert it to tell the Duo to mute the internal speaker. I didn't ever try it because I was unable to select a dock for sacrifice. Even the lowly ADB micro dock squealed for mercy when I tried prying it open with a screwdriver. In retrospect I would rip in to a clunky old full size dock and rob the connector from that for testing. They seem to be everywhere and all with bad power supplies. The other theory I had was to open the screen bezel and attach some sort of tiny connector to the speaker directly. Please keep us up to date on what you find out! >Message-ID: <[EMAIL PROTECTED]> >Date: Sun, 7 Jan 2001 06:53:54 -0800 (PST) >From: John P <[EMAIL PROTECTED]> >Subject: [Duo2400] Re: duodock internal hd & more > >Does anyone know wich pins on the duo 152 PDS docking >connector caries the audio out. I would love to have >mobile audio out capability on my 2300c. > >John > > > > > >152 PDS docking connector ---------- Duo/2400 List, The friendliest place on the Net! A listserv for users and fans of Mac subportables. FAQ at <http://www.themacintoshguy.com/lists/DuoListFAQ.shtml> Be sure to visit Mac2400! <http://www.sineware.com/mac2400> To unsubscribe, E-mail to: <[EMAIL PROTECTED]> To switch to the DIGEST mode, E-mail to <[EMAIL PROTECTED]> Need help from a real person? Try. <[EMAIL PROTECTED]> ---------- Dr. Bott | Great Duo & 2400 stuff including 10/100 Ethernet for 2400s! Dr. Bott | Duo Batts too <http://www.drbott.com/prod/alist/duo.html> NineWire | If they are cool enough to host this list... Digital Solutions | ...you should check them out! http://www.NineWire.com/ PowerBook Guy is | Click here! Everything PowerBook! | http://www.powerbookguy.com Midwest Mac Parts ][ <http://www.midwestmac.com> After-market parts for Macs. ][ 888-356-1104 ][ MacResQ Specials: LaCie SCSI CDR From $99! PowerBook 3400/200 Only $879! Norton AntiVirus 6 Only $19! We Stock PARTS! <http://www.macresq.com>
