REVEAL COMPUTER PRODUCTS
========================

   SC300 PRO

   Card Type       Sound card                                     
   Chip Set        Unidentified                                   
   Maximum Onboard None                                           
   Memory          
   I/O Options     Line in, microphone in, volume control,        
                   speaker out, game/MIDI port, audio in -        
                   CD-ROM, CD-ROM interfaces (2), PC speaker -    
                   internal, multimedia audio connector           
   Data Bus        16-bit ISA                                     

<gopher://bitreich.org/I/th99/i/P-R/53943-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |    Function    | Label |         Function          | Label |
   |----------------+-------+---------------------------+-------|
   | Line in        |  CN1  | Audio in - CD-ROM         |  CN6  |
   |----------------+-------+---------------------------+-------|
   | Microphone in  |  CN2  | CD-ROM interface          |  CN7  |
   |                |       | (Panasonic)               |       |
   |----------------+-------+---------------------------+-------|
   | Volume control |  CN3  | CD-ROM interface          |  CN8  |
   |                |       | (Mitsumi)                 |       |
   |----------------+-------+---------------------------+-------|
   | Speaker out    |  CN4  | PC speaker - internal     |  J4   |
   |----------------+-------+---------------------------+-------|
   | Game/MIDI port |  CN5  | Multimedia audio          |  MPC  |
   |                |       | connector                 |       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |                Function                | Label | Position  |
   |----------------------------------------+-------+-----------|
   | Speaker enabled                        |  J5   |  Closed   |
   |----------------------------------------+-------+-----------|
   | Speaker disabled                       |  J5   |   Open    |
   |----------------------------------------+-------+-----------|
   | Programmable EEPROM enabled            |  JX3  |  Closed   |
   |----------------------------------------+-------+-----------|
   | Programmable EEPROM disabled           |  JX3  |   Open    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              VIRTUAL PARALLEL PORT SELECTION               |
   |------------------------------------------------------------|
   |      Setting       |         J1         |        J2        |
   |--------------------+--------------------+------------------|
   |      Enabled       |       Closed       |      Closed      |
   |--------------------+--------------------+------------------|
   |      Disabled      |        Open        |       Open       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                MITSUMI INTERRUPT SELECTION                 |
   |------------------------------------------------------------|
   |       IRQ        |   JP1/pins 1 & 2   |   JP1/pins 3 & 4   |
   |------------------+--------------------+--------------------|
   |        11        |        Open        |       Closed       |
   |------------------+--------------------+--------------------|
   |        12        |       Closed       |        Open        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    MICROPHONE SELECTION                    |
   |------------------------------------------------------------|
   |     Setting      |        JX1         |        JX2         |
   |------------------+--------------------+--------------------|
   |    Condenser     | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |      Carbon      | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   +------------------------------------------------------------+