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                                       

<gopher://bitreich.org/I/th99/m/C-D/30053-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | Power LED &       |    J1    | Turbo switch     |    J4    |
   | Keylock           |          |                  |          |
   |-------------------+----------+------------------+----------|
   | 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) 44256|  (2)   |  NONE  |  NONE  |  NONE  |  NONE  |
   |     |         | 41256  |        |        |        |        |
   |-----+---------+--------+--------+--------+--------+--------|
   |512KB|  NONE   |  NONE  |  NONE  |  NONE  |  NONE  |  NONE  |
   |-----+---------+--------+--------+--------+--------+--------|
   |640KB|(4) 44256|  (2)   |  NONE  |  NONE  |  NONE  |  NONE  |
   |     |         | 41256  |        |        |        |        |
   |-----+---------+--------+--------+--------+--------+--------|
   |640KB|  NONE   |  NONE  |  NONE  |  NONE  |  NONE  |  NONE  |
   |-----+---------+--------+--------+--------+--------+--------|
   | 1MB |(4) 44256|  (4)   |  (4)   |  (4)   |  NONE  |  NONE  |
   |     |         | 41256  | 44256  | 41256  |        |        |
   |-----+---------+--------+--------+--------+--------+--------|
   | 1MB |  NONE   |  NONE  |  NONE  |  NONE  |  NONE  |  NONE  |
   |-----+---------+--------+--------+--------+--------+--------|
   |1.5MB|(4) 44256|  (2)   |  (4)   |  (2)   |  NONE  |  NONE  |
   |     |         | 41256  | 44256  | 41256  |        |        |
   |-----+---------+--------+--------+--------+--------+--------|
   | 2MB |(4) 44256|  (2)   |  (4)   |  (2)   |  NONE  |  NONE  |
   |     |         | 41256  | 44256  | 41256  |        |        |
   |-----+---------+--------+--------+--------+--------+--------|
   | 2MB |   (4)   |  (2)   |  (4)   |  (2)   |  (4)   |  NONE  |
   |     | 411000  | 411000 | 411000 | 411000 | 411000 |        |
   |-----+---------+--------+--------+--------+--------+--------|
   | 2MB |  NONE   |  NONE  |  NONE  |  NONE  |  NONE  |  NONE  |
   |-----+---------+--------+--------+--------+--------+--------|
   | 3MB |(4) 44256|  (2)   |  (4)   |  (2)   |  NONE  |  NONE  |
   |     |         | 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) 44256|  (2)   |  (4)   |  (2)   |  NONE  |  NONE  |
   |     |         | 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 (CON'T)                 |
   |------------------------------------------------------------|
   | Size  | Bank 6 | Bank 7 | Bank 8 | Bank 9 |  Bank  | Bank  |
   |       |        |        |        |        |   10   |  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)  |
   |       |        |        |        |        | 256K x | 64K x |
   |       |        |        |        |        |   9    |   9   |
   |-------+--------+--------+--------+--------+--------+-------|
   |  1MB  |  NONE  |  NONE  |  NONE  |  NONE  |  NONE  | NONE  |
   |-------+--------+--------+--------+--------+--------+-------|
   |  1MB  |  NONE  |  NONE  |  NONE  |  NONE  |  (2)   |  (2)  |
   |       |        |        |        |        | 256K x | 256K  |
   |       |        |        |        |        |   9    |  x 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 (CON'T)                 |
   |------------------------------------------------------------|
   | Size | Bank 6 | Bank 7 | Bank 8 | Bank 9 |  Bank  |  Bank  |
   |      |        |        |        |        |   10   |   11   |
   |------+--------+--------+--------+--------+--------+--------|
   | 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.     |
   +------------------------------------------------------------+