ACER OPEN
=========

   S30 16-BIT AUDIO CARD

   Card Type     Sound card                                       
   Chipset       Unidentified                                     
   Controller    
   I/O Options   CD-ROM interface, CD-ROM audio, game/MIDI port,  
                 line in, microphone in, PC speaker in,           
                 speaker/line out, volume, wavetable              
   Maximum DRAM  N/A                                              

<gopher://bitreich.org/I/th99/i/A-B/51230-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |      Purpose      | Location |     Purpose      | Location |
   |-------------------+----------+------------------+----------|
   | IDE CD-ROM        |   CN1    | Speaker/line out |    J1    |
   | interface         |          |                  |          |
   |-------------------+----------+------------------+----------|
   | CD-ROM audio in   |   CN2    | Line in          |    J2    |
   |-------------------+----------+------------------+----------|
   | Wavetable module  |   CN3    | Mic in           |    J3    |
   | connector         |          |                  |          |
   |-------------------+----------+------------------+----------|
   | Game/MIDI port    |   CN4    | Volume           |   VR1    |
   |-------------------+----------+------------------+----------|
   | PC speaker in     |   CN5    |                  |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 BASE I/O ADDRESS SELECTION                 |
   |------------------------------------------------------------|
   |      Address        |        BA0        |       BA1        |
   |---------------------+-------------------+------------------|
   |>> |      220h       |      Closed       |      Closed      |
   |---+-----------------+-------------------+------------------|
   |   |      240h       |       Open        |      Closed      |
   |---+-----------------+-------------------+------------------|
   |   |      260h       |      Closed       |       Open       |
   |---+-----------------+-------------------+------------------|
   |   |      280h       |       Open        |       Open       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 MPU-401 ADDRESS SELECTION                  |
   |------------------------------------------------------------|
   |            Address              |           MPUA           |
   |---------------------------------+--------------------------|
   |>>    |           330h           |          Closed          |
   |------+--------------------------+--------------------------|
   |      |           300h           |           Open           |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   MPU-401 CONFIGURATION                    |
   |------------------------------------------------------------|
   |            Setting              |           MPUE           |
   |---------------------------------+--------------------------|
   |>> |           Enabled           |           Open           |
   |---+-----------------------------+--------------------------|
   |   |          Disabled           |          Closed          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  GAME PORT CONFIGURATION                   |
   |------------------------------------------------------------|
   |             Setting              |          JYEN           |
   |----------------------------------+-------------------------|
   |>>  |           Enabled           |         Closed          |
   |----+-----------------------------+-------------------------|
   |    |          Disabled           |          Open           |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               CD-ROM INTERFACE CONFIGURATION               |
   |------------------------------------------------------------|
   |        Setting         |       CD0       |       CD1       |
   |------------------------+-----------------+-----------------|
   |>> |      Enabled       |     Closed      |     Closed      |
   |---+--------------------+-----------------+-----------------|
   |   |      Disabled      |      Open       |      Open       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |            AUDIO OUTPUT AMPLIFIER CONFIGURATION            |
   |------------------------------------------------------------|
   |     Setting      |        J22         |        J23         |
   |------------------+--------------------+--------------------|
   |     Line out     | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |     Speaker      | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   +------------------------------------------------------------+