(TXT) View Source
       
       # 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                                       
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        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     |
          +------------------------------------------------------------+