(TXT) View Source
       
       # LASER COMPUTER, INC.
       
          LASER 386M
       
          Processor         80386SX                                      
          Processor Speed   25/33MHz                                     
          Chip Set          Unidentified                                 
          Max. Onboard DRAM 12MB                                         
          Cache             Unidentified                                 
          BIOS              Unidentified                                 
          Dimensions        330mm x 218mm                                
          I/O Options       None                                         
          NPU Options       80387SX                                      
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | External battery  |   J22    | Turbo switch     |   J26    |
          |-------------------+----------+------------------+----------|
          | Reset switch      |   J24    | Speaker          |   J28    |
          |-------------------+----------+------------------+----------|
          | Power LED &       |   J25    | External memory  |    S1    |
          | keylock           |          | card             |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |           Function            | Jumper/Switch |  Position  |
          |-------------------------------+---------------+------------|
          | » | EPROM chip type select    |      J13      | pins 2 & 3 |
          |   | 27128 or 2764             |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | EPROM chip type select    |      J13      | pins 1 & 2 |
          |   | 27256                     |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | SYSCLK enabled            |      J30      | pins 2 & 3 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | SYSCLK disabled           |      J30      | pins 1 & 2 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | Battery type select       |      J31      | pins 1 & 2 |
          |   | internal                  |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | Battery type select       |      J31      | pins 2 & 3 |
          |   | external                  |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | EGA BIOS access select on |     SW2/1     |     On     |
          |   | board                     |               |            |
          |---+---------------------------+---------------+------------|
          |   | EGA BIOS access select    |     SW2/1     |    Off     |
          |   | adapter card              |               |            |
          |---+---------------------------+---------------+------------|
          | » | Memory type select 513KB  |     SW2/2     |     On     |
          |   | to 640KB expansion bus    |               |            |
          |   | enabled                   |               |            |
          |---+---------------------------+---------------+------------|
          |   | Memory type select        |     SW2/2     |    Off     |
          |   | expansion bus disabled    |               |            |
          |---+---------------------------+---------------+------------|
          | » | NPU disabled              |     SW2/3     |     On     |
          |---+---------------------------+---------------+------------|
          |   | NPU enabled               |     SW2/3     |    Off     |
          |---+---------------------------+---------------+------------|
          | » | Clock frequency speed     |     SW2/4     |    Off     |
          |   | select 25/33Mhz           |               |            |
          |---+---------------------------+---------------+------------|
          |   | Clock frequency speed     |     SW2/4     |     On     |
          |   | select 8Mhz               |               |            |
          |---+---------------------------+---------------+------------|
          | » | Monitor type select       |     SW2/5     |    Off     |
          |   | monochrome                |               |            |
          |---+---------------------------+---------------+------------|
          |   | Monitor type select color |     SW2/5     |     On     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          |         Setting          |               J27               |
          |--------------------------+---------------------------------|
          |         Enabled          |        pins 2 & 3 closed        |
          |--------------------------+---------------------------------|
          |         Disabled         |        pins 1 & 2 closed        |
          |------------------------------------------------------------|
          | Note: The size and location of the cache is unidentified.  |
          +------------------------------------------------------------+
       
 (IMG) IMG 2
          
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |    Size    |    Bank 0     |    Bank 1     |    Bank 2     |
          |------------+---------------+---------------+---------------|
          |    1MB     | (4) 256K x 9  |     NONE      |     NONE      |
          |------------+---------------+---------------+---------------|
          |    2MB     | (4) 256K x 9  | (4) 256K x 9  |     NONE      |
          |------------+---------------+---------------+---------------|
          |    3MB     | (4) 256K x 9  | (4) 256K x 9  | (4) 256K x 9  |
          |------------+---------------+---------------+---------------|
          |    4MB     |  (4) 1M x 9   |     NONE      |     NONE      |
          |------------+---------------+---------------+---------------|
          |    5MB     | (4) 256K x 9  |  (4) 1M x 9   |     NONE      |
          |------------+---------------+---------------+---------------|
          |    6MB     | (4) 256K x 9  | (4) 256K x 9  |  (4) 1M x 9   |
          |------------+---------------+---------------+---------------|
          |    8MB     |  (4) 1M x 9   |  (4) 1M x 9   |     NONE      |
          |------------+---------------+---------------+---------------|
          |    9MB     | (4) 256K x 9  |  (4) 1M x 9   |  (4) 1M x 9   |
          |------------+---------------+---------------+---------------|
          |    12MB    |  (4) 1M x 9   |  (4) 1M x 9   |  (4) 1M x 9   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM SWITCH CONFIGURATION                  |
          |------------------------------------------------------------|
          |   Size    |   SW1/1    |   SW1/2   |   SW1/3   |   SW1/4   |
          |-----------+------------+-----------+-----------+-----------|
          |    1MB    |     On     |    Off    |    On     |    On     |
          |-----------+------------+-----------+-----------+-----------|
          |    2MB    |    Off     |    On     |    On     |    On     |
          |-----------+------------+-----------+-----------+-----------|
          |    3MB    |    Off     |    Off    |    On     |    On     |
          |-----------+------------+-----------+-----------+-----------|
          |    4MB    |     On     |    Off    |    On     |    Off    |
          |-----------+------------+-----------+-----------+-----------|
          |    5MB    |    Off     |    On     |    Off    |    On     |
          |-----------+------------+-----------+-----------+-----------|
          |    6MB    |    Off     |    Off    |    Off    |    Off    |
          |-----------+------------+-----------+-----------+-----------|
          |    8MB    |    Off     |    On     |    On     |    Off    |
          |-----------+------------+-----------+-----------+-----------|
          |    9MB    |    Off     |    Off    |    Off    |    On     |
          |-----------+------------+-----------+-----------+-----------|
          |   12MB    |    Off     |    Off    |    On     |    Off    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              MEMORY RELOCATION CONFIGURATION               |
          |------------------------------------------------------------|
          |            Setting            |           SW2/5            |
          |-------------------------------+----------------------------|
          |            Enabled            |             On             |
          |-------------------------------+----------------------------|
          |           Disabled            |            Off             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       TECHNICAL NOTE                       |
          |------------------------------------------------------------|
          |        Note: The location of pin 1 is unidentified.        |
          +------------------------------------------------------------+