TOPTEK TECHNOLOGY, INC.
=======================

   MULTI CD-ROM AT-BUS CARD

   Card Type       Sound card                                     
   Chip Set        Unidentified                                   
   Maximum Onboard Unidentified                                   
   Memory          
   I/O Options     CD-ROM interface (3), audio in - CD-ROM (3),   
                   line out, line in                              
   Data Bus        8-bit ISA                                      
   Card Size       Half-length, half-height card                  

<gopher://bitreich.org/I/th99/i/S-T/54386-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |        Function        | Label |     Function      | Label |
   |------------------------+-------+-------------------+-------|
   | CD-ROM interface       |  J1   | Audio in - CD-ROM |  J5   |
   | (Panasonic)            |       |                   |       |
   |------------------------+-------+-------------------+-------|
   | CD-ROM interface       |  J2   | Audio in - CD-ROM |  J6   |
   | (Mitsumi)              |       |                   |       |
   |------------------------+-------+-------------------+-------|
   | CD-ROM interface       |  J3   | Line out          |  JK1  |
   | (Sony)                 |       |                   |       |
   |------------------------+-------+-------------------+-------|
   | Audio in - CD-ROM      |  J4   | Line in           |  JK2  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   DMA CHANNEL SELECTION                    |
   |------------------------------------------------------------|
   |          Channel           |              JP1              |
   |----------------------------+-------------------------------|
   |             1              |       Pins 1 & 3 closed       |
   |----------------------------+-------------------------------|
   |             3              |       Pins2 & 4 closed        |
   |------------------------------------------------------------|
   | Note: Used for Mitsumi interface only.                     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 BASE I/O ADRESS SELECTION                  |
   |------------------------------------------------------------|
   |  Sony   | Mitsumi | Panasonic |            JP2             |
   |---------+---------+-----------+----------------------------|
   |  320h   |  300h   |   310h    |           Closed           |
   |---------+---------+-----------+----------------------------|
   |  360h   |  340h   |   350h    |            Open            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  IRQ INTERRUPT SELECTION                   |
   |------------------------------------------------------------|
   |            IRQ             |              JP1              |
   |----------------------------+-------------------------------|
   |            IRQ3            |       Pins 7 & 8 closed       |
   |----------------------------+-------------------------------|
   |            IRQ4            |      Pins 9 & 10 closed       |
   |----------------------------+-------------------------------|
   |            IRQ5            |      Pins 11 & 12 closed      |
   |------------------------------------------------------------|
   | Note: Used for Mitsumi interface only.                     |
   +------------------------------------------------------------+