Path: utzoo!utgpu!watserv1!watmath!maytag!xenitec!usenet!wcbcs!akcs.clemon
From: akcs.clemon@wcbcs (Craig Lemon)
Newsgroups: comp.sys.amiga
Subject: Speaker on the XT bridgeboard?
Message-ID: <[260e9a9c:3621.1]comp.sys.amiga;1@wcbcs>
Date: 27 Mar 90 22:14:33 GMT
References: <28262@cup.portal.com>
Lines: 26

>Could someone tell me the exact jumpers I need to connect on the 
>IBM XT bridgeboard to have a little 8ohm speaker playing on it?
>I think I saw people talking about this before, but any messages
>pertaining to it have ran off my system and I can't read them.
>Thanks for any help.

You can't.  Period.  There is some sort of design bug in the audio circuits
which does not allow it to drive a speaker. I had a fix for this but it
involved replacing a part and cutting a trace (I believe?).  Sound is
available at line level (suitable for amplification) at the two pins about
3/4 of the way back at the top of the board.  Two wires can be attached to
this pins and run to an RCA (stereo type) jack mounted onto a spare
backplate (usually the one removed when you installed the Bridgecard) which
is then mounted in an unused slot.  This can then be connected to the
monitor audio inputs or merged into the Amiga sound at your stereo amp. 
Hope you know what I'm talking about...
--                            _
 Craig Lemon              // |_|               
 Kitchener, Ontario     \X/  | |  M  I  G  A   
                                               
 Amiga 2000 -- 2400 bps -- AmigaUUCP 1.03D     
 ..!watmath!xenitec!wcbcs!lemsys!clemon        
 ..!watmath!xenitec!wcbcs!{_clemon|AKCS.clemon}          
 
           ^^ Not Reliable Yet                 
         "Yes, it's my real name!!"