CHAINTECH COMPUTER COMPANY, LTD.
================================

   SQ-688C

   Card Type     Sound card                                       
   Chipset       Unidentified                                     
   Controller    
   I/O Options   Audio connector (3), CD-ROM IDE interface,       
                 game/MIDI port, line in, microphone in, line     
                 out, volume, wavetable interface                 
   Maximum DRAM  N/A                                              

<gopher://bitreich.org/I/th99/i/C-D/51430-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |      Purpose       | Location |     Purpose     | Location |
   |--------------------+----------+-----------------+----------|
   | Game/MIDI port     |   CN1    | LED connector   |   JP1    |
   |--------------------+----------+-----------------+----------|
   | CD-ROM IDE         |    J1    | Audio connector |   JP12   |
   | interface          |          |                 |          |
   |--------------------+----------+-----------------+----------|
   | Wavetable          |    J2    | Audio connector |   JP13   |
   | interface          |          |                 |          |
   |--------------------+----------+-----------------+----------|
   | Line in            |    J3    | Audio connector |   JP14   |
   |--------------------+----------+-----------------+----------|
   | Mic in             |    J4    | Volume          |   VR1    |
   |--------------------+----------+-----------------+----------|
   | Line out           |    J5    |                 |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 BASE I/O ADDRESS SELECTION                 |
   |------------------------------------------------------------|
   |     Address      |        JP10        |        JP11        |
   |------------------+--------------------+--------------------|
   |>> |     220h     | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   |     230h     | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   |     240h     | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   |     250h     | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    INTERRUPT SELECTION                     |
   |------------------------------------------------------------|
   |       IRQ        |   JP8/Pins 5 & 6   |   JP8/Pins 7 & 8   |
   |------------------+--------------------+--------------------|
   |>> |      7       |       Closed       |        Open        |
   |---+--------------+--------------------+--------------------|
   |   |     2/9      |        Open        |        Open        |
   |---+--------------+--------------------+--------------------|
   |   |      5       |        Open        |       Closed       |
   |---+--------------+--------------------+--------------------|
   |   |      10      |       Closed       |       Closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   DMA CHANNEL SELECTION                    |
   |------------------------------------------------------------|
   |     Channel      |   JP8/Pins 1 & 2   |   JP8/Pins 3 & 4   |
   |------------------+--------------------+--------------------|
   |>>  |      1      |       Closed       |        Open        |
   |----+-------------+--------------------+--------------------|
   |    |      0      |        Open        |       Closed       |
   |----+-------------+--------------------+--------------------|
   |    |      3      |       Closed       |       Closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                IDE INTERRUPT CONFIGURATION                 |
   |------------------------------------------------------------|
   |        IRQ         |        JP2        |        JP4        |
   |--------------------+-------------------+-------------------|
   |>> | 15 (Secondary) | Pins 1 & 2 closed | Pins 1 & 2 closed |
   |---+----------------+-------------------+-------------------|
   |   |  14 (Primary)  | Pins 2 & 3 closed | Pins 2 & 3 closed |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     IDE CONFIGURATION                      |
   |------------------------------------------------------------|
   |          Setting           |              JP3              |
   |----------------------------+-------------------------------|
   |>> |        Enabled         |       Pins 1 & 2 closed       |
   |---+------------------------+-------------------------------|
   |   |        Disabled        |       Pins 2 & 3 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  GAME PORT CONFIGURATION                   |
   |------------------------------------------------------------|
   |          Setting           |              JP9              |
   |----------------------------+-------------------------------|
   |>> |        Enabled         |       Pins 1 & 2 closed       |
   |---+------------------------+-------------------------------|
   |   |        Disabled        |       Pins 2 & 3 closed       |
   +------------------------------------------------------------+