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Looking for the pinout of the optical in/out header of a Sweex 7.1 sound card.

Discussion in 'Computer Components' started by Kapitein Prozac, Jan 17, 2009.

  1. Kapitein Prozac

    Kapitein Prozac Member

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    I have a Sweex 7.1 sound card (http://www.sweex.com/SC015) which has a 10 pin (one missing) header for optical in/out. ST Lab has the same card as well (http://www.st-lab.com/products.asp). The 10 pin header is similar to the 10 pin S/PDIF header on an Audigy 2 ZS although the pinout is not the same. Does anyone know which pin is the S/PDIF out and which are ground pins? I'm looking for those two pins so I can attach the S/PDIF cable from my GF9600 GT to them.

    I currently use two cables more or less taped together (one end coaxial and the other the S/PDIF cable that came with the videocard). It works perfectly but it looks a bit messy. Using the header pins would be the better choice.
  2. ezz

    ezz Member

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    Working on that one,bought the board today (sweex SC015) just to get spdif functions.
    Have an old soyo adapter board (SY-AUDIO03)which im gonna use aswell,so trying to figure out the pins on both.
    so far up to...
    -----------sc015
    jp1
    pin func
    2 spdif out TTL
    5 spdif in (pin 86 XSPDIFI on chip)
    6,10 ground
    --------------SY-AUDIO03
    pin func
    2 spdif in
    1 spdif out
    --------------
    XD,,noticed just now that the post is wayz old..well usefull for somebody maybe;)
    --------------
    would be nice to know if someone has tested to get spdif in/out stuff on the board functioning??
    (no havent even plugged the board in yet,less tried the win soft)
    Last edited: Nov 2, 2009
  3. ezz

    ezz Member

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    Well,here we go.
    Got the thing working for what i need.
    Thx to CMI for documentation on the 8768:)

    -----------sweex sc015
    jp1
    pin function
    1 +12v
    2 spdif out TTL
    3 problably NC..high Z
    4 keypin(NC)
    5 spdif in (pin 86 XSPDIFI on chip)
    7 spdif in (same as cd-in)
    8,9 seems to be NC..high Z
    6,10 ground

    cd spdif in
    pin function
    1 earth
    2 spdif in (pin 113 XSPDIFI2 on chip)
    --------------Soyo SY-AUDIO03
    SY-AUDIO03 connector
    pin function
    1 spdif out
    2 spdif in
    3 +5V
    4 NC/keypin(missing)
    5 Center/Bass ring
    6 Center/Bass tip
    7,8 ground
    9 Rear ring
    10 Rear tip
    --------------

    Notes.
    On the Soyo plate the tip(C/B and Rear) are connected to ground when no
    plug is present.(think it was tip)
    All measurments made with a ordinary ohm-meter.

    The soyo plate probably needs stabilized +5V to get the RCA(spdif-in)
    connector working properly,I only needed the optos working so just made a quickfix with a resistor and +5V from the soundboard(unstabilized).
    Hence there are drops in bitflow on the RCA input(they use a very simple
    conversion of the 0.5V external spdif to internal TTL level).

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