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

   PTM-1000 (V1)

   Processor          80286                                       
   Processor Speed    10MHz                                       
   Chip Set           None                                        
   Max. Onboard DRAM  1MB                                         
   Cache              None                                        
   BIOS               DTK                                         
   Dimensions         333mm x 222mm                               
   I/O Options        None                                        
   NPU Options        80287                                       

<gopher://bitreich.org/I/th99/m/C-D/30054-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | Speaker           |   J17    | Turbo switch     |   J23    |
   |-------------------+----------+------------------+----------|
   | Power LED &       |   J19    | External battery |   J24    |
   | keylock           |          |                  |          |
   |-------------------+----------+------------------+----------|
   | Turbo LED         |   J21    | Reset switch     |   SW2    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function               | Jumper  |  Position  |
   |-------------------------------------+---------+------------|
   |>> | Monitor type select color       |   J2    | pins 1 & 2 |
   |   |                                 |         |   closed   |
   |---+---------------------------------+---------+------------|
   |   | Monitor type select monochrome  |   J2    | pins 2 & 3 |
   |   |                                 |         |   closed   |
   |---+---------------------------------+---------+------------|
   |>> | DRAM speed select 0 wait states |   J25   |    Open    |
   |---+---------------------------------+---------+------------|
   |   | DRAM speed select 1 wait state  |   J25   |   Closed   |
   |---+---------------------------------+---------+------------|
   |>> | Base memory size select 512KB   |   J26   | pins 1 & 2 |
   |   |                                 |         |   closed   |
   |---+---------------------------------+---------+------------|
   |   | Base memory size select 640KB   |   J26   | pins 2 & 3 |
   |   |                                 |         |   closed   |
   |------------------------------------------------------------|
   | Note:Base memory size select jumper (J26) is only          |
   | functional when 1MB of DRAM is installed.                  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |      512KB       |     (18) 41256     |        NONE        |
   |------------------+--------------------+--------------------|
   |      640KB       |     (18) 41256     |     (18) 4164      |
   |------------------+--------------------+--------------------|
   |       1MB        |     (18) 41256     |     (18) 41256     |
   +------------------------------------------------------------+

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

   +------------------------------------------------------------+
   |                     BIOS CONFIGURATION                     |
   |------------------------------------------------------------|
   |    Size    |   SW1/1   |   SW1/2   |   SW1/3   |   SW1/4   |
   |------------+-----------+-----------+-----------+-----------|
   |   27128    |    On     |    On     |    Off    |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |   27256    |    Off    |    Off    |    On     |    On     |
   +------------------------------------------------------------+