
DTK COMPUTER, INC.

PTM-1233C/PTM-1630C

Processor         80286
Processor Speed   12/16MHz
Chip Set          C & T
Max. Onboard DRAM 8MB
Cache             None
BIOS              DTK
Dimensions        333mm x 222.5mm
I/O Options       None
NPU Options       80287

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Power LED & Keylock         J1       Turbo switch                J4

  Reset                       J2       Turbo LED                   J5

  Speaker                     J3       External battery            J8

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     BIOS type select 27256                   W7            pins 2 & 3
                                                              closed

      BIOS type select 27128                   W7            pins 1 & 2
                                                              closed

      NPU speed select 8MHz                    W8            pins 1 & 2
                                                              closed

      NPU speed select 16MHz                   W8            pins 2 & 3
                                                              closed

     Battery select internal                  W9            pins 2 & 3
                                                              closed

      Battery select external                  W9            pins 1 & 2
                                                              closed

      Monitor type select monochrome           W10           pins 1 & 2
                                                              closed

      Monitor type select color                W10           pins 2 & 3
                                                              closed

                            DRAM CONFIGURATION

  Size     Bank 0     Bank 1     Bank 2     Bank 3     Bank 4     Bank 5

  512KB      (4)        (2)       NONE       NONE       NONE       NONE
            44256     41256

  512KB     NONE       NONE       NONE       NONE       NONE       NONE

  640KB      (4)        (2)       NONE       NONE       NONE       NONE
            44256     41256

  640KB     NONE       NONE       NONE       NONE       NONE       NONE

   1MB       (4)        (4)        (4)        (4)       NONE       NONE
            44256     41256      44256      41256

   1MB      NONE       NONE       NONE       NONE       NONE       NONE

  1.5MB      (4)        (2)        (4)        (2)       NONE       NONE
            44256     41256      44256      41256

   2MB       (4)        (2)        (4)        (2)       NONE       NONE
            44256     41256      44256      41256

   2MB       (4)        (2)        (4)        (2)        (4)       NONE
           411000     411000     411000     411000     411000

   2MB      NONE       NONE       NONE       NONE       NONE       NONE

   3MB       (4)        (2)        (4)        (2)       NONE       NONE
            44256     41256      44256      41256

   4MB       (4)        (2)        (4)        (2)        (4)        (2)
           411000     411000     411000     411000     411000     411000

   4MB      NONE       NONE       NONE       NONE       NONE       NONE

   4MB       (4)        (2)        (4)        (2)        (4)       NONE
           411000     411000     411000     411000     411000

   4MB      NONE       NONE       NONE       NONE       NONE        (4)
                                                                  411000

   5MB       (4)        (2)        (4)        (2)       NONE       NONE
            44256     41256      44256      41256

   6MB       (4)        (2)        (4)        (2)        (4)        (2)
           411000     411000     411000     411000     411000     411000

   8MB       (4)        (2)        (4)        (2)        (4)        (2)
           411000     411000     411000     411000     411000     411000

                        DRAM CONFIGURATION (CONT)

   Size      Bank 6     Bank 7     Bank 8     Bank 9   Bank 10   Bank 11

  512KB       NONE       NONE       NONE      NONE      NONE       NONE

  512KB       NONE       NONE       NONE      NONE       (2)       NONE
                                                        256K x
                                                          9

  640KB       NONE       NONE       NONE      NONE      NONE      (2) 64K
                                                                   x 9

  640KB       NONE       NONE       NONE      NONE       (2)      (2) 64K
                                                        256K x     x 9
                                                          9

   1MB        NONE       NONE       NONE      NONE      NONE       NONE

   1MB        NONE       NONE       NONE      NONE       (2)     (2) 256K
                                                        256K x     x 9
                                                          9

  1.5MB        (4)        (2)       NONE      NONE      NONE       NONE
             44256      41256

   2MB         (4)        (2)        (4)      NONE      NONE       NONE
             44256      41256       44256

   2MB        NONE       NONE       NONE      NONE      NONE       NONE

   2MB        NONE       NONE       NONE      NONE      (2) 1M     NONE
                                                         X 9

   3MB        NONE       NONE       NONE      NONE      (2) 1M     NONE
                                                         X 9

                        DRAM CONFIGURATION (CONT)

  Size     Bank 6      Bank 7      Bank 8      Bank 9     Bank    Bank 11
                                                           10

   4MB       (4)         (2)         (4)         (2)      NONE     NONE
           411000      411000      411000      411000

   4MB      NONE        NONE        NONE        NONE     (2) 1M    (2) 1M
                                                          X 9       X 9

   4MB      NONE        NONE        NONE        NONE      NONE     (2) 1M
                                                                    X 9

   4MB       (2)         (4)         (2)         (4)     (2) 1M    NONE
           411000      411000      411000      411000     X 9

   5MB      NONE        NONE        NONE        NONE     (2) 1M    (2) 1M
                                                          x 9       x 9

   6MB       (4)         (2)         (4)         (2)     (2) 1M    NONE
           411000      411000      411000      411000     x 9

   8MB       (4)         (2)         (4)         (2)     (2) 1M    (2) 1M
           411000      411000      411000      411000     x 9       x 9

                  DRAM JUMPER CONFIGURATION

  Size      W1       W2       W3       W4       W5      W6

  512KB    1 & 2   1 & 2    1 & 2    1 & 2    1 & 2    1 & 2

  512KB    1 & 2   1 & 2    1 & 2    1 & 2    1 & 2    1 & 2

  640KB    2 & 3   2 & 3    2 & 3    2 & 3    2 & 3    2 & 3

  640KB    1 & 2   1 & 2    1 & 2    1 & 2    1 & 2    1 & 2

   1MB     1 & 2   1 & 2    1 & 2    1 & 2    1 & 2    1 & 2

   1MB     1 & 2   1 & 2    1 & 2    1 & 2    1 & 2    1 & 2

  1.5MB    1 & 2   1 & 2    1 & 2    1 & 2    1 & 2    1 & 2

   2MB     1 & 2   1 & 2    1 & 2    1 & 2    1 & 2    1 & 2

   2MB     1 & 2   1 & 2    1 & 2    1 & 2    1 & 2    1 & 2

   2MB     1 & 2   1 & 2    1 & 2    1 & 2    1 & 2    1 & 2

   3MB     1 & 2   1 & 2    1 & 2    1 & 2    1 & 2    1 & 2

   4MB     1 & 2   1 & 2    1 & 2    1 & 2    1 & 2    1 & 2

   4MB     1 & 2   1 & 2    1 & 2    1 & 2    1 & 2    1 & 2

   4MB     2 & 3   2 & 3    2 & 3    2 & 3    2 & 3    2 & 3

   4MB     2 & 3   2 & 3    2 & 3    2 & 3    2 & 3    2 & 3

   5MB     2 & 3   2 & 3    2 & 3    2 & 3    2 & 3    2 & 3

   6MB     2 & 3   2 & 3    2 & 3    2 & 3    2 & 3    2 & 3

   8MB     2 & 3   2 & 3    2 & 3    2 & 3    2 & 3    2 & 3

  Note:Pins designated should be in the closed position.

