DD & TT ENTERPRISE USA COMPANY
==============================

   DT-911S

   Category                     Video                             
   Video Types Supported        XVGA                              
   Video Processor              S3 86C911                         
   Highest Resolution Supported 1024 X 768                        
   Data Bus Type                16-bit ISA                        
   Memory Type                  VRAM                              
   Maximum Onboard Memory       1024KB                            

<gopher://bitreich.org/I/th99/v/C-D/50048-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |            Purpose            |          Location          |
   |-------------------------------+----------------------------|
   | 15-pin analog video port      |             J1             |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               VIDEO MEMORY SPEED SELECTION                 |
   |------------------------------------------------------------|
   |           Speed            |              JP3              |
   |----------------------------+-------------------------------|
   |           100ns            |       Pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |            80ns            |       Pins 2 & 3 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    INTERRUPT SELECTION                     |
   |------------------------------------------------------------|
   |          IRQ 2/9           |              JP8              |
   |----------------------------+-------------------------------|
   |>> |        Disabled        |             Open              |
   |---+------------------------+-------------------------------|
   |   |        Enabled         |      Pins 11 & 12 closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  MONITOR TYPE SELECTION                    |
   |------------------------------------------------------------|
   |       Type        |Rate|SW1/1|SW1/2|SW1/3|SW1/4|SW1/5|SW1/6|
   |-------------------+----+-----+-----+-----+-----+-----+-----|
   |Basic VGA, 2A, 3D, |60Hz| On  | Off | On  | Off | On  | Off |
   |      4D, 5D       |    |     |     |     |     |     |     |
   |-------------------+----+-----+-----+-----+-----+-----+-----|
   |  NEC 3D, 4D, 5D   |70Hz| On  | Off | On  | Off | Off | On  |
   |-------------------+----+-----+-----+-----+-----+-----+-----|
   |  NEC 3D, 4D, 5D   |60Hz| On  | Off | Off | On  | On  | Off |
   |-------------------+----+-----+-----+-----+-----+-----+-----|
   |    NEC 4D, 5D     |70Hz| On  | On  | Off | On  | Off | On  |
   |-------------------+----+-----+-----+-----+-----+-----+-----|
   |      2A, 3D       |56Hz| Off | On  | On  | Off | On  | Off |
   |-------------------+----+-----+-----+-----+-----+-----+-----|
   |      2A, 3D       |43Hz| Off | On  | On  | Off | Off | On  |
   |-------------------+----+-----+-----+-----+-----+-----+-----|
   |      4D, 5D       |60Hz| Off | On  | Off | On  | On  | Off |
   |-------------------+----+-----+-----+-----+-----+-----+-----|
   |        5D         |70Hz| Off | On  | Off | On  | Off | On  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             FACTORY CONFIGURED - DO NOT ALTER              |
   |------------------------------------------------------------|
   |           Jumper           |           Position            |
   |----------------------------+-------------------------------|
   |            JP2             |       Pins 2 & 3 closed       |
   |----------------------------+-------------------------------|
   |            JP4             |       Pins 2 & 3 closed       |
   |----------------------------+-------------------------------|
   |            JP5             |       Pins 2 & 3 closed       |
   |----------------------------+-------------------------------|
   |            JP6             |       Pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |            JP7             |       Pins 1 & 2 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    VRAM CONFIGURATION                      |
   |------------------------------------------------------------|
   |  Size  |      Bank 0      |    Bank 1    |       JP1       |
   |--------+------------------+--------------+-----------------|
   | 512KB  |   (4) 256K x 4   |     NONE     |   Pins 2 & 3    |
   |        |       VRAM       |              |     closed      |
   |--------+------------------+--------------+-----------------|
   | 1024KB |   (4) 256K x 4   | (4) 256K x 4 |   Pins 1 & 2    |
   |        |                  |              |     closed      |
   +------------------------------------------------------------+