(TXT) View Source
       
       # TANDY/RADIO SHACK
       
          AUDIO ADAPTER
       
          Card Type     Sound card                                       
          Chipset       Creative Labs                                    
          Controller    
          I/O Options   Audio extension connector, CD-ROM audio, CD-ROM  
                        drive interface, game/MIDI port, line in,        
                        microphone in, speaker out, volume               
          Maximum DRAM  N/A                                              
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |    Purpose     | Location |       Purpose       | Location |
          |----------------+----------+---------------------+----------|
          | Game/MIDI port |   CN1    | Speaker out         |    J4    |
          |----------------+----------+---------------------+----------|
          | CD audio in    |    J1    | CD-ROM drive        |   JP3    |
          |                |          | interface           |          |
          |----------------+----------+---------------------+----------|
          | Line in        |    J2    | *8-pin audio        |   JP24   |
          |                |          | extension connector |          |
          |----------------+----------+---------------------+----------|
          | Mic in         |    J3    | Volume              |   VR1    |
          |------------------------------------------------------------|
          | *Note: Look at pin out table below.                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      JP24 CONNECTIONS                      |
          |------------------------------------------------------------|
          |             Purpose              |        Location         |
          |----------------------------------+-------------------------|
          |          Mic jack right          |          Pin 1          |
          |----------------------------------+-------------------------|
          |              Ground              |          Pin 2          |
          |----------------------------------+-------------------------|
          |       Mic jack, preamp in        |          Pin 3          |
          |----------------------------------+-------------------------|
          |              Ground              |          Pin 4          |
          |----------------------------------+-------------------------|
          |         Speaker amp out          |          Pin 5          |
          |----------------------------------+-------------------------|
          |        Speaker jack right        |          Pin 8          |
          |------------------------------------------------------------|
          | Note: See Amplifier configuration table for pins 6 & 7.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  AMPLIFIER CONFIGURATION                   |
          |------------------------------------------------------------|
          |        Setting         |      JP23       | JP24 pins 6 & 7 |
          |------------------------+-----------------+-----------------|
          | » |      Disabled      |      Open       |      Open       |
          |---+--------------------+-----------------+-----------------|
          |   |      Enabled       |     Closed      |     Closed      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    DMA CHANNELSELECTION                    |
          |------------------------------------------------------------|
          | Channel |  JP17  |  JP18  |  JP19  | JP20  | JP21  | JP22  |
          |---------+--------+--------+--------+-------+-------+-------|
          |»  |  1  |  Open  | Closed |  Open  | Open  |Closed | Open  |
          |---+-----+--------+--------+--------+-------+-------+-------|
          |   |  0  | Closed |  Open  |  Open  |Closed | Open  | Open  |
          |---+-----+--------+--------+--------+-------+-------+-------|
          |   |  3  |  Open  |  Open  | Closed | Open  | Open  |Closed |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DMA SHARING CONFIGURATION                  |
          |------------------------------------------------------------|
          |          Setting           |              JP9              |
          |----------------------------+-------------------------------|
          | » |        Disabled        |       Pins 1 & 2 closed       |
          |---+------------------------+-------------------------------|
          |   |        Enabled         |       Pins 2 & 3 closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CD-ROM INTERRUPT SELECTION                 |
          |------------------------------------------------------------|
          |    IRQ     |    JP4    |    JP5    |    JP6    |    JP7    |
          |------------+-----------+-----------+-----------+-----------|
          | » |   11   |   Open    |  Closed   |   Open    |   Open    |
          |---+--------+-----------+-----------+-----------+-----------|
          |   |   3    |  Closed   |   Open    |   Open    |   Open    |
          |---+--------+-----------+-----------+-----------+-----------|
          |   |   12   |   Open    |   Open    |  Closed   |   Open    |
          |---+--------+-----------+-----------+-----------+-----------|
          |   |   15   |   Open    |   Open    |   Open    |  Closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             AUDIO ADAPTER INTERRUPT SELECTION              |
          |------------------------------------------------------------|
          |    IRQ     |   JP13    |   JP14    |   JP15    |   JP16    |
          |------------+-----------+-----------+-----------+-----------|
          | » |   7    |   Open    |   Open    |  Closed   |   Open    |
          |---+--------+-----------+-----------+-----------+-----------|
          |   |  2/9   |  Closed   |   Open    |   Open    |   Open    |
          |---+--------+-----------+-----------+-----------+-----------|
          |   |   5    |   Open    |  Closed   |   Open    |   Open    |
          |---+--------+-----------+-----------+-----------+-----------|
          |   |   10   |   Open    |   Open    |   Open    |  Closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                AUDIO PORT ADDRESS SELECTION                |
          |------------------------------------------------------------|
          |       Address        |       JP10       |       JP11       |
          |----------------------+------------------+------------------|
          | »  |      220h       |      Closed      |       Open       |
          |----+-----------------+------------------+------------------|
          |    |      240h       |       Open       |      Closed      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               CD-ROM PORT ADDRESS SELECTION                |
          |------------------------------------------------------------|
          |     Address      |        JP26        |        JP27        |
          |------------------+--------------------+--------------------|
          | » |     340h     | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
          |---+--------------+--------------------+--------------------|
          |   |     300h     | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
          |---+--------------+--------------------+--------------------|
          |   |     310h     | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
          |---+--------------+--------------------+--------------------|
          |   |     330h     | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  GAME PORT CONFIGURATION                   |
          |------------------------------------------------------------|
          |             Setting              |           JP8           |
          |----------------------------------+-------------------------|
          | »  |           Enabled           |         Closed          |
          |----+-----------------------------+-------------------------|
          |    |          Disabled           |          Open           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             FACTORY CONFIGURED - DO NOT ALTER              |
          |------------------------------------------------------------|
          |           Jumper            |           Position           |
          |-----------------------------+------------------------------|
          |            JP12             |             N/A              |
          |-----------------------------+------------------------------|
          |            JP25             |             N/A              |
          +------------------------------------------------------------+