(TXT) View Source
       
       # J-MARK COMPUTER CORPORATION
       
          JET-286V
       
          Processor             80286                                    
          Processor Speed       16/20MHz                                 
          Chip Set              VLSI SCAMP                               
          Max. Onboard DRAM     16MB                                     
          Cache                 None                                     
          BIOS                  Award                                    
          Dimensions            254mm x 220mm                            
          I/O Options           None                                     
          NPU Options           80287                                    
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose          | Location | Purpose           | Location |
          |------------------+----------+-------------------+----------|
          | Speaker          |    J5    | Power LED &       |   J10    |
          |                  |          | keylock           |          |
          |------------------+----------+-------------------+----------|
          | External battery |    J8    | Turbo LED         |   J13    |
          |------------------+----------+-------------------+----------|
          | Turbo switch     |    J7    | Reset switch      |   J15    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function               | Jumper |  Position  |
          |--------------------------------------+--------+------------|
          | » | NPU mode select synchronous with |  JP2   | pins 1 & 2 |
          |   | CPU                              |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | NPU mode select synchronous with |  JP2   | pins 2 & 3 |
          |   | oscillator installed at OSC1     |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Battery type select internal     |  JP7   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Battery type select external     |  JP7   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Monitor type select color        |  JP11  |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | Monitor type select monochrome   |  JP11  |    Open    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          | Size  | Bank 0 |  P-0   | Bank 1 |  P-1   | Bank 2 | Bank  |
          |       |        |        |        |        |        |   3   |
          |-------+--------+--------+--------+--------+--------+-------|
          | 512KB |  (4)   |  (2)   |  NONE  |  NONE  |  NONE  | NONE  |
          |       | 44256  | 41256  |        |        |        |       |
          |-------+--------+--------+--------+--------+--------+-------|
          | 512KB |  NONE  |  NONE  |  NONE  |  NONE  |  (2)   | NONE  |
          |       |        |        |        |        | 256K x |       |
          |       |        |        |        |        |   9    |       |
          |-------+--------+--------+--------+--------+--------+-------|
          |  1MB  |  (4)   |  (2)   |  (4)   |  (2)   |  NONE  | NONE  |
          |       | 44256  | 41256  | 44256  | 41256  |        |       |
          |-------+--------+--------+--------+--------+--------+-------|
          |  1MB  |  NONE  |  NONE  |  NONE  |  NONE  |  (2)   |  (2)  |
          |       |        |        |        |        | 256K x | 256K  |
          |       |        |        |        |        |   9    |  x 9  |
          |-------+--------+--------+--------+--------+--------+-------|
          |  2MB  |  (4)   |  (2)   |  (4)   |  (2)   |  (2)   |  (2)  |
          |       | 44256  | 41256  | 44256  | 41256  | 256K x | 256K  |
          |       |        |        |        |        |   9    |  x 9  |
          |-------+--------+--------+--------+--------+--------+-------|
          |  2MB  |  NONE  |  NONE  |  NONE  |  NONE  | (1) 1M | NONE  |
          |       |        |        |        |        |  x 9   |       |
          |-------+--------+--------+--------+--------+--------+-------|
          |  4MB  |  NONE  |  NONE  |  NONE  |  NONE  | (1) 1M |  (1)  |
          |       |        |        |        |        |  x 9   | 1M x  |
          |       |        |        |        |        |        |   9   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM JUMPER CONFIGURATION                  |
          |------------------------------------------------------------|
          |       Size       |        JP3         |        JP4         |
          |------------------+--------------------+--------------------|
          |      512KB       | pins 2 & 3 closed  | pins 2 & 3 closed  |
          |------------------+--------------------+--------------------|
          |      512KB       | pins 1 & 2 closed  | pins 1 & 2 closed  |
          |------------------+--------------------+--------------------|
          |       1MB        | pins 2 & 3 closed  | pins 2 & 3 closed  |
          |------------------+--------------------+--------------------|
          |       1MB        | pins 1 & 2 closed  | pins 1 & 2 closed  |
          |------------------+--------------------+--------------------|
          |       2MB        | pins 2 & 3 closed  | pins 2 & 3 closed  |
          |------------------+--------------------+--------------------|
          |       2MB        | pins 1 & 2 closed  | pins 1 & 2 closed  |
          |------------------+--------------------+--------------------|
          |       4MB        | pins 1 & 2 closed  | pins 1 & 2 closed  |
          +------------------------------------------------------------+