CHAINTECH COMPUTER COMPANY, INC.
================================

   SQ-688

   Card Type       Sound card                                     
   Chip Set        ESS                                            
   Maximum Onboard N/A                                            
   Memory          
   I/O Options     CD-ROM interface (3), MIDI/game port, CD audio 
                   in (3), microphone in, line in,                
                   headphone/speaker                              
   Hard Drives     None                                           
   supported       
   Floppy drives   None                                           
   supported       
   Data Bus        16-bit ISA                                     
   Card Size       Half-length, full-height card                  

<gopher://bitreich.org/I/th99/i/C-D/53410-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |     Function     | Label |        Function         | Label |
   |------------------+-------+-------------------------+-------|
   | CD-ROM interface |  CN1  | Line in                 |  CN6  |
   | - Panasonic      |       |                         |       |
   |------------------+-------+-------------------------+-------|
   | CD-ROM interface |  CN2  | Headphone/speaker       |  CN7  |
   | - Mitsumi        |       |                         |       |
   |------------------+-------+-------------------------+-------|
   | CD-ROM interface |  CN3  | Audio in - CD-ROM       |  CN8  |
   | - Sony           |       | (Sony)                  |       |
   |------------------+-------+-------------------------+-------|
   | MIDI/game port   |  CN4  | Audio in - CD-ROM       |  CN9  |
   |                  |       | (Mitsumi)               |       |
   |------------------+-------+-------------------------+-------|
   | Microphone in    |  CN5  | Audio in - CD-ROM       | CN10  |
   |                  |       | (Panasonic)             |       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function                | Label |  Position  |
   |---------------------------------------+-------+------------|
   |>> | Panasonic CD-ROM interface        | JP15  | Pins 1 & 2 |
   |   | enabled                           |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | Sony/Mitsumi CD-ROM interface     | JP15  | Pins 2 & 3 |
   |   | enabled                           |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | Game port enabled                 | JP16  | Pins 1 & 2 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | Game port disabled                | JP16  | Pins 2 & 3 |
   |   |                                   |       |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              SOUND CARD DMA CHANNEL SELECTION              |
   |------------------------------------------------------------|
   |       Channel        |       JP4/A       |      JP4/B      |
   |----------------------+-------------------+-----------------|
   |      |       0       |       Open        |     Closed      |
   |------+---------------+-------------------+-----------------|
   |>>    |       1       |      Closed       |      Open       |
   |------+---------------+-------------------+-----------------|
   |      |       3       |      Closed       |     Closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |           CD-ROM INTERFACE DMA CHANNEL SELECTION           |
   |------------------------------------------------------------|
   | Channel | JP17/A | JP17/B | JP17/C |JP18/A |JP18/B |JP18/C |
   |---------+--------+--------+--------+-------+-------+-------|
   |   |  1  | Closed |  Open  |  Open  |Closed | Open  | Open  |
   |---+-----+--------+--------+--------+-------+-------+-------|
   |   |  2  |  Open  | Closed |  Open  | Open  |Closed | Open  |
   |---+-----+--------+--------+--------+-------+-------+-------|
   |>>  |  3  |  Open  |  Open  | Closed | Open  | Open  |Closed |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 BASE I/O ADDRESS SELECTION                 |
   |------------------------------------------------------------|
   |       Address       |       JP3/A       |      JP3/B       |
   |---------------------+-------------------+------------------|
   |>> |      220h       |       Open        |       Open       |
   |---+-----------------+-------------------+------------------|
   |   |      230h       |       Open        |      Closed      |
   |---+-----------------+-------------------+------------------|
   |   |      240h       |      Closed       |       Open       |
   |---+-----------------+-------------------+------------------|
   |   |      250h       |      Closed       |      Closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             CD-ROM INTERFACE ADDRESS SELECTION             |
   |------------------------------------------------------------|
   |    Setting     |     JP12     |     JP13     |    JP14     |
   |----------------+--------------+--------------+-------------|
   |   |    300h    |     Open     |     Open     |    Open     |
   |---+------------+--------------+--------------+-------------|
   |   |    310h    |    Closed    |     Open     |    Open     |
   |---+------------+--------------+--------------+-------------|
   |   |    320h    |     Open     |    Closed    |    Open     |
   |---+------------+--------------+--------------+-------------|
   |   |    330h    |    Closed    |    Closed    |    Open     |
   |---+------------+--------------+--------------+-------------|
   |>> |    340h    |     Open     |     Open     |   Closed    |
   |---+------------+--------------+--------------+-------------|
   |   |    350h    |    Closed    |     Open     |   Closed    |
   |---+------------+--------------+--------------+-------------|
   |   |    360h    |     Open     |    Closed    |   Closed    |
   |---+------------+--------------+--------------+-------------|
   |   |    370h    |    Closed    |    Closed    |   Closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               SOUND CARD INTERRUPT SELECTION               |
   |------------------------------------------------------------|
   |          IRQ          |      JP2/A       |      JP2/B      |
   |-----------------------+------------------+-----------------|
   |    |       IRQ5       |       Open       |     Closed      |
   |----+------------------+------------------+-----------------|
   |>>  |       IRQ7       |      Closed      |      Open       |
   |----+------------------+------------------+-----------------|
   |    |       IRQ9       |       Open       |      Open       |
   |----+------------------+------------------+-----------------|
   |    |      IRQ10       |      Closed      |     Closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CD-ROM INTERRUPT SELECTION                 |
   |------------------------------------------------------------|
   |     IRQ     |  JP19/A   |  JP19/B   |  JP19/C   |  JP19/D  |
   |-------------+-----------+-----------+-----------+----------|
   |   |  IRQ3   |  Closed   |   Open    |   Open    |   Open   |
   |---+---------+-----------+-----------+-----------+----------|
   |   |  IRQ5   |   Open    |  Closed   |   Open    |   Open   |
   |---+---------+-----------+-----------+-----------+----------|
   |   |  IRQ7   |   Open    |   Open    |  Closed   |   Open   |
   |---+---------+-----------+-----------+-----------+----------|
   |>> |  IRQ9   |   Open    |   Open    |   Open    |  Closed  |
   +------------------------------------------------------------+