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

   PTM-TB10Z4

   Processor              80286                                   
   Processor Speed        10MHz                                   
   Chip Set               Unidentified                            
   Video Chip Set         None                                    
   Maximum Onboard Memory 1MB                                     
   Maximum Video Memory   None                                    
   Cache                  None                                    
   BIOS                   DTK                                     
   Dimensions             355mm x 304mm                           
   I/O Options            None                                    
   NPU Options            80287                                   

<gopher://bitreich.org/I/th99/m/C-D/33619-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | Speaker           |   J17    | Turbo switch     |   J23    |
   |-------------------+----------+------------------+----------|
   | Power LED &       |   J19    | External battery |   J24    |
   | keylock           |          |                  |          |
   |-------------------+----------+------------------+----------|
   | Turbo LED         |   J21    |                  |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function               | Label |   Position   |
   |-------------------------------------+-------+--------------|
   |   | Monitor type select color       |  J2   |  Pins 1 & 2  |
   |   |                                 |       |    closed    |
   |---+---------------------------------+-------+--------------|
   |   | Monitor type select monochrome  |  J2   |  Pins 2 & 3  |
   |   |                                 |       |    closed    |
   |---+---------------------------------+-------+--------------|
   |   | Wait state select 0 wait states |  J25  |     Open     |
   |---+---------------------------------+-------+--------------|
   |   | Wait state select 1 wait state  |  J25  |    Closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |  Size   |   Bank 0   |   Bank 1   |   Bank 2   |  Bank 3   |
   |---------+------------+------------+------------+-----------|
   |  512KB  | (9) 41256  | (9) 41256  |    None    |   None    |
   |---------+------------+------------+------------+-----------|
   |  640KB  | (9) 41256  | (9) 41256  |  (9) 4164  | (9) 4164  |
   |---------+------------+------------+------------+-----------|
   |   1MB   | (9) 41256  | (9) 41256  | (9) 41256  | (9) 41256 |
   |------------------------------------------------------------|
   | Note: The location of banks 0, 1, 2 & 3 are unidentified.  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DRAM JUMPER CONFIGURATION                  |
   |------------------------------------------------------------|
   |            Size            |              J18              |
   |----------------------------+-------------------------------|
   |           512KB            |       Pins 2 & 3 closed       |
   |----------------------------+-------------------------------|
   |           640KB            |       Pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |            1MB             |       Pins 2 & 3 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                       BIOS SELECTION                       |
   |------------------------------------------------------------|
   |        Size        |  U5/1   |  U5/2   |  U5/3   |  U5/4   |
   |--------------------+---------+---------+---------+---------|
   |  27128 (DTK BIOS)  |   On    |   On    |   Off   |   Off   |
   |--------------------+---------+---------+---------+---------|
   | 27128 (Other BIOS) |   Off   |   Off   |   On    |   On    |
   |--------------------+---------+---------+---------+---------|
   | 27256 (Other BIOS) |   Off   |   Off   |   On    |   On    |
   +------------------------------------------------------------+