(TXT) View Source
       
       # UNIDENTIFIED
       
          286LX-A
       
          Processor             80286                                    
          Processor Speed       10/12MHz                                 
          Chip Set              VLSI                                     
          Max. Onboard DRAM     4MB                                      
          Cache                 None                                     
          BIOS                  AMI                                      
          Dimensions            330mm x 220mm                            
          I/O Options           None                                     
          NPU Options           80287                                    
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose             | Location | Purpose        | Location |
          |---------------------+----------+----------------+----------|
          | Power LED & keylock |   J18    | Reset switch   |   J29    |
          |---------------------+----------+----------------+----------|
          | External battery    |   J22    | Turbo LED      |   J103   |
          |---------------------+----------+----------------+----------|
          | Speaker             |   J23    | Turbo switch   |   J104   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |           Function            | Jumper/Switch |  Position  |
          |-------------------------------+---------------+------------|
          | » | Battery select internal   |      J28      | pins 1 & 2 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | Battery select external   |      J28      | pins 2 & 3 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | Timing mode select fast   |      J30      | pins 1 & 2 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | Timing mode select slow   |      J30      | pins 2 & 3 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | CPU speed select 12MHz    |     J102      | pins 1 & 2 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | CPU speed select 10MHz    |     J102      | pins 2 & 3 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | Monitor type select color |     SW1/4     |     On     |
          |---+---------------------------+---------------+------------|
          |   | Monitor type select       |     SW1/4     |    Off     |
          |   | monochrome                |               |            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |       Size       |       Bank 0       |       Bank 1       |
          |------------------+--------------------+--------------------|
          |      512KB       |     (18) 41256     |        NONE        |
          |------------------+--------------------+--------------------|
          |      640KB       |     (18) 41256     |     (18) 4164      |
          |------------------+--------------------+--------------------|
          |       1MB        |     (18) 41256     |     (18) 41256     |
          |------------------+--------------------+--------------------|
          |       2MB        |    (18) 411000     |        NONE        |
          |------------------+--------------------+--------------------|
          |       4MB        |    (18) 411000     |    (18) 411000     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  DRAM SPEED CONFIGURATION                  |
          |------------------------------------------------------------|
          |        Speed        |        J10         |       J31       |
          |---------------------+--------------------+-----------------|
          | 100ns/0 wait states | pins 1 & 2 closed  |     Closed      |
          |---------------------+--------------------+-----------------|
          | 120ns/1 wait state  | pins 2 & 3 closed  |      Open       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM JUMPER CONFIGURATION                  |
          |------------------------------------------------------------|
          |     Size      |    SW1/1     |    SW1/2     |    SW1/3     |
          |---------------+--------------+--------------+--------------|
          |     512KB     |      On      |      On      |      On      |
          |---------------+--------------+--------------+--------------|
          |     640KB     |     Off      |      On      |      On      |
          |---------------+--------------+--------------+--------------|
          |      1MB      |      On      |     Off      |      On      |
          |---------------+--------------+--------------+--------------|
          |      2MB      |     Off      |     Off      |      On      |
          |---------------+--------------+--------------+--------------|
          |      4MB      |      On      |      On      |     Off      |
          +------------------------------------------------------------+