VIDEOLOGIC, INC.
================

   DVA-4000 (PC AT)

   Category                     Video                             
   Video Types Supported        XVGA                              
   Video Processor              Unidentified                      
   Highest Resolution Supported 640 x 480                         
   Data Bus Type                16-bit ISA                        
   Memory Type                  Unidentified                      
   Maximum Onboard Memory       Unidentified                      

<gopher://bitreich.org/I/th99/v/U-Z/51074-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |      Purpose      | Location |     Purpose      | Location |
   |-------------------+----------+------------------+----------|
   | 15-pin analog     |   CN1    | 16-pin aux video |   CN4    |
   | video port        |          | connector        |          |
   |-------------------+----------+------------------+----------|
   | VGA feature       |   CN2    | 4-pin audio in   |   CN8    |
   | connector         |          | connector        |          |
   |-------------------+----------+------------------+----------|
   | 15-pin analog     |   CN3    |                  |          |
   | display port      |          |                  |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   BASE ADDRESS SELECTION                   |
   |------------------------------------------------------------|
   |     Address      |        JP3         |        JP4         |
   |------------------+--------------------+--------------------|
   |>> |     308h     | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   |     318h     | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   |     328h     | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   |     338h     | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    INTERRUPT SELECTION                     |
   |------------------------------------------------------------|
   |  IRQ   | JP2/A  | JP2/B  | JP2/C  | JP2/D  | JP2/E | JP2/F |
   |--------+--------+--------+--------+--------+-------+-------|
   |>>|  7   |  Open  |  Open  | Closed |  Open  | Open  | Open  |
   |-+------+--------+--------+--------+--------+-------+-------|
   | | 2/9  |  Open  |  Open  |  Open  | Closed | Open  | Open  |
   |-+------+--------+--------+--------+--------+-------+-------|
   | |  3   | Closed |  Open  |  Open  |  Open  | Open  | Open  |
   |-+------+--------+--------+--------+--------+-------+-------|
   | |  5   |  Open  | Closed |  Open  |  Open  | Open  | Open  |
   |-+------+--------+--------+--------+--------+-------+-------|
   | |  10  |  Open  |  Open  |  Open  |  Open  | Open  | Open  |
   |-+------+--------+--------+--------+--------+-------+-------|
   | |  15  |  Open  |  Open  |  Open  |  Open  | Open  | Open  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                6 OR 8-BIT PALETTE SELECTION                |
   |------------------------------------------------------------|
   |          Setting           |              JP5              |
   |----------------------------+-------------------------------|
   |>> |         6-bit          |       Pins 2 & 3 closed       |
   |---+------------------------+-------------------------------|
   |   |         8-bit          |       Pins 1 & 2 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                AUDIO 3 INPUT GAIN SELECTION                |
   |------------------------------------------------------------|
   |       Setting        |       JP6        |       JP7        |
   |----------------------+------------------+------------------|
   |>> |       Off        |    Pins 1 & 2    |    Pins 1 & 2    |
   |   |                  |      closed      |      closed      |
   |---+------------------+------------------+------------------|
   |   | Quit (gain low)  |    Pins 1 & 2    |    Pins 2 & 3    |
   |   |                  |      closed      |      closed      |
   |---+------------------+------------------+------------------|
   |   | Normal (audio 3  |    Pins 1 & 2    |    Pins 3 & 4    |
   |   |      input)      |      closed      |      closed      |
   |---+------------------+------------------+------------------|
   |   | Loud (gain high) |    Pins 2 & 3    |    Pins 3 & 4    |
   |   |                  |      closed      |      closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             FACTORY CONFIGURED - DO NOT ALTER              |
   |------------------------------------------------------------|
   |           Jumper           |           Position            |
   |----------------------------+-------------------------------|
   |            JP1             |       Pins 2 & 3 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                MISCELLANEOUS TECHNICAL NOTE                |
   |------------------------------------------------------------|
   | The DVA-4000 (PC AT) video board works in conjunction with |
   | the MEDIASPACE (V1073) and DVA-4000 PS/2 (V1075) boards.   |
   +------------------------------------------------------------+