DTK COMPUTER, INC.
==================

   PII-157

   Category                     Video                             
   Video Types Supported        EGA                               
   Video Processor              Unidentified                      
   Highest Resolution Supported 640 x 350                         
   Data Bus Type                8-bit ISA                         
   Memory Type                  DRAM                              
   Maximum Onboard Memory       256KB                             

<gopher://bitreich.org/I/th99/v/C-D/51586-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |      Purpose       | Location |     Purpose     | Location |
   |--------------------+----------+-----------------+----------|
   | 32-pin feature     |   CN1    | Composite       |   CN4    |
   | connector          |          | display - RCA   |          |
   |                    |          | jack            |          |
   |--------------------+----------+-----------------+----------|
   | 9-pin video output |   CN2    | 6-pin light pen |    P2    |
   | port               |          | interface       |          |
   |--------------------+----------+-----------------+----------|
   | Composite display  |   CN3    |                 |          |
   | - RCA jack         |          |                 |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CLOCK SOURCE CONFIGURATION                 |
   |------------------------------------------------------------|
   |            Setting            |             J2             |
   |-------------------------------+----------------------------|
   |        External clock         |     Pins 1 & 2 closed      |
   |-------------------------------+----------------------------|
   |   Internal 24.872 MHz clock   |     Pins 2 & 3 closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                LIGHT PEN PORT CONFIGURATION                |
   |------------------------------------------------------------|
   |          Setting           |              J3               |
   |----------------------------+-------------------------------|
   |>> |         Port 1         |       Pins 1 & 2 closed       |
   |---+------------------------+-------------------------------|
   |   |         Port 2         |       Pins 2 & 3 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DISLAY MODE CONFIGURATION                  |
   |------------------------------------------------------------|
   | Monitor type |Primary Card|Secondary Card|SW1/2|SW1/3|SW1/4|
   |--------------+------------+--------------+-----+-----+-----|
   |     CGA      |  PII-157   |  Monochrome  | Off | Off | On  |
   |--------------+------------+--------------+-----+-----+-----|
   |     EGA      |  PII-157   |  Monochrome  | On  | On  | Off |
   |--------------+------------+--------------+-----+-----+-----|
   |     CGA      | Monochrome |   PII-157    | On  | On  | On  |
   |--------------+------------+--------------+-----+-----+-----|
   |     EGA      | Monochrome |   PII-157    | Off | On  | On  |
   |--------------+------------+--------------+-----+-----+-----|
   | Composite or |  PII-157   |     CGA      | Off | On  | Off |
   |     CGA      |            |              |     |     |     |
   |--------------+------------+--------------+-----+-----+-----|
   | Composite or |    CGA     |   PII-157    | On  | Off | On  |
   |     CGA      |            |              |     |     |     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               RESOLUTION TYPE CONFIGURATION                |
   |------------------------------------------------------------|
   |             Type             |            SW1/1            |
   |------------------------------+-----------------------------|
   |             Low              |             On              |
   |------------------------------+-----------------------------|
   |             High             |             Off             |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 AUTO SWITCH CONFIGURATION                  |
   |------------------------------------------------------------|
   |             Setting               |         SW1/5          |
   |-----------------------------------+------------------------|
   |>>   |          Disabled           |          Off           |
   |-----+-----------------------------+------------------------|
   |     |           Enabled           |           On           |
   +------------------------------------------------------------+