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From: wbaguhn@nyx10.cs.du.edu (Will Baguhn)
Newsgroups: comp.sys.apple2
Subject: Sonic Blaster
Date: 26 Jun 1996 23:21:14 -0600
Organization: I am the error in apps of delight
Lines: 38
Message-ID: <4qt5oa$hqm@nyx10.cs.du.edu>
NNTP-Posting-Host: nyx10.nyx.net


Some time ago, I got an AE Sonic Blaster, but didn't get the cable/backplate
that went with it (i.e. I just had the card, and nothing through which
I could attach it to speakers).  A little poking around, and that
annoying Brian Hammack (:) sent me the "magic" pinouts of how to build the
cable.  I'm sharing the info with the world, just in case someone else
gets a Sonic Blaster... (or, in case someone wants to re-build their
current audio backplate to have sheilded cable...)

>Here's the schematic according to my limited ability:

>MOLEX-6 ON CARD    OUT (1/8" stereo jack)
> ----
> || .1             Barrel - 2
> || .2                Mid - 1
> || .3                Tip - 3        IN (1/8" stereo jack)
> || .4
> || .5                               Barrel - 5
> || .6                                  Mid - 4
> ----                                   Tip - 6
>
>The original plate & cable is as such when looking from the keyboard
>end, top to bottom, blue red white blue red white off the molex-6 with
>the top three going to the OUT and the bottom three going to the IN,
>with the two "sets" both in heatshrink tube.

>The plate the two jacks are on is metal, and is screwed down into the
>metal frame inside the GS's outlet as grounding; I'll assume that since
>they are "internal" jacks the barrel contacts do the actual work. :)
>The manual really stresses that the plate MUST be touching the metal
>shield inside the case for proper operation so take heed.

>Hope this all helps...                                  << mushroom >>

> * 2qwk! 2.02 * "You go online, you get techno-weenievision." - J.Harris

-- 
                                      --- SPQR (wbaguhn@nyx.net)