
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

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Speaker                     J17      Turbo switch                J23

  Power LED & keylock         J19      External battery            J24

  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

