SANYO BUSINESS SYSTEMS CORPORATION
==================================

   MBC-18SX

   Processor        80386SX                                       
   Processor Speed  16MHz                                         
   Chip Set         Zymos                                         
   Max. Onboard     2MB                                           
   DRAM             
   Cache            None                                          
   BIOS             Sanyo                                         
   Dimensions       332mm x 136mm                                 
   I/O Options      Serial port, parallel port, floppy drive      
                    interface, IDE interface                      
   NPU Options      80387SX                                       

<gopher://bitreich.org/I/th99/m/S-T/30479-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |      Purpose      | Location |    Purpose     |  Location  |
   |-------------------+----------+----------------+------------|
   | Serial port       |   CN1    | Speaker & I/O  |    CN10    |
   |                   |          | LED            |            |
   |-------------------+----------+----------------+------------|
   | Parallel port     |   CN2    | Keylock        |    CN11    |
   |-------------------+----------+----------------+------------|
   | Floppy drive      |   CN3    | External       |   CN12 &   |
   | interface         |          | batteries      |    CN13    |
   |-------------------+----------+----------------+------------|
   | IDE interface     |   CN7    | Reset switch   |    SW1     |
   |-------------------+----------+----------------+------------|
   | Keyboard          |   CN9    |                |            |
   | connector         |          |                |            |
   |------------------------------------------------------------|
   | Note:The purpose of connectors CN5 & CN8 is unidentified.  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |            Function            | Jumper/Switch | Position  |
   |--------------------------------+---------------+-----------|
   |>> | Serial port interrupt      |      JP1      | pins 2 &  |
   |   | select primary             |               | 3 closed  |
   |---+----------------------------+---------------+-----------|
   |   | Serial port interrupt      |      JP1      | pins 1 &  |
   |   | select secondary           |               | 2 closed  |
   |---+----------------------------+---------------+-----------|
   |>> | Parallel port interrupt    |      JP2      | pins 2 &  |
   |   | select primary             |               | 3 closed  |
   |---+----------------------------+---------------+-----------|
   |   | Parallel port interrupt    |      JP2      | pins 1 &  |
   |   | select secondary           |               | 2 closed  |
   |---+----------------------------+---------------+-----------|
   |>> | Factory configured - do    |      JP3      | pins 1 &  |
   |   | not alter                  |               | 2 closed  |
   |---+----------------------------+---------------+-----------|
   |>> | Factory configured - do    |      JP4      |   Open    |
   |   | not alter                  |               |           |
   |---+----------------------------+---------------+-----------|
   |>> | IDE interface enabled      |      JP5      | pins 1 &  |
   |   |                            |               | 2 closed  |
   |---+----------------------------+---------------+-----------|
   |>> | IDE interface disabled     |      JP5      | pins 2 &  |
   |   |                            |               | 3 closed  |
   |---+----------------------------+---------------+-----------|
   |>> | Factory configured - do    |      JP6      | pins 2 &  |
   |   | not alter                  |               | 3 closed  |
   |---+----------------------------+---------------+-----------|
   |>> | Factory configured - do    |      JP7      |   Open    |
   |   | not alter                  |               |           |
   |---+----------------------------+---------------+-----------|
   |>> | Bus mouse address select   |     JP12      | pins 2 &  |
   |   | primary                    |               | 3 closed  |
   |---+----------------------------+---------------+-----------|
   |   | Bus mouse address select   |     JP12      | pins 1 &  |
   |   | secondary                  |               | 2 closed  |
   |---+----------------------------+---------------+-----------|
   |>> | Factory configured - do    |     JP13      | pins 1 &  |
   |   | not alter                  |               | 2 closed  |
   |---+----------------------------+---------------+-----------|
   |>> | Factory configured - do    |     JP14      | pins 1 &  |
   |   | not alter                  |               | 2 closed  |
   |---+----------------------------+---------------+-----------|
   |>> | Factory configured - do    |     JP15      | pins 1 &  |
   |   | not alter                  |               | 2 closed  |
   |---+----------------------------+---------------+-----------|
   |>> | Factory configured - do    |     JP16      | pins 1 &  |
   |   | not alter                  |               | 2 closed  |
   |---+----------------------------+---------------+-----------|
   |>> | Factory configured - do    |     JP17      | pins 2 &  |
   |   | not alter                  |               | 3 closed  |
   |---+----------------------------+---------------+-----------|
   |>> | Factory configured - do    |     JP18      | pins 2 &  |
   |   | not alter                  |               | 3 closed  |
   |---+----------------------------+---------------+-----------|
   |>> | Factory configured - do    |     JP19      | pins 1 &  |
   |   | not alter                  |               | 2 closed  |
   |---+----------------------------+---------------+-----------|
   |>> | IDE interrupt select SLVAC |     JP20      | pins 1 &  |
   |   | disabled                   |               | 2 closed  |
   |---+----------------------------+---------------+-----------|
   |   | IDE interrupt select SLVAC |     JP20      | pins 2 &  |
   |   | enabled                    |               | 3 closed  |
   |---+----------------------------+---------------+-----------|
   |>> | Factory configured - do    |    DPS1/1     |    Off    |
   |   | not alter                  |               |           |
   |---+----------------------------+---------------+-----------|
   |>> | Parallel port address      |    DPS1/2     |    On     |
   |   | select primary             |               |           |
   |---+----------------------------+---------------+-----------|
   |   | Parallel port address      |    DPS1/2     |    Off    |
   |   | select secondary           |               |           |
   |---+----------------------------+---------------+-----------|
   |>> | Serial port address select |    DPS1/3     |    On     |
   |   | primary                    |               |           |
   |---+----------------------------+---------------+-----------|
   |   | Serial port address select |    DPS1/3     |    Off    |
   |   | secondary                  |               |           |
   |---+----------------------------+---------------+-----------|
   |>> | Floppy drive interface     |    DPS1/4     |    On     |
   |   | address select primary     |               |           |
   |---+----------------------------+---------------+-----------|
   |   | Floppy drive interface     |    DPS1/4     |    Off    |
   |   | address select secondary   |               |           |
   |---+----------------------------+---------------+-----------|
   |>> | Monitor type select color  |    DPS1/5     |    On     |
   |---+----------------------------+---------------+-----------|
   |   | Monitor type select        |    DPS1/5     |    Off    |
   |   | monochrome                 |               |           |
   |---+----------------------------+---------------+-----------|
   |>> | CPU speed select fast      |    DPS1/6     |    On     |
   |---+----------------------------+---------------+-----------|
   |   | CPU speed select slow      |    DPS1/6     |    Off    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |  Size  |   Bank 0   |    P-0     |   Bank 1   |    P-1     |
   |--------+------------+------------+------------+------------|
   |  1MB   | (8) 44256  | (4) 41256  |    NONE    |    NONE    |
   |--------+------------+------------+------------+------------|
   |  2MB   | (8) 44256  | (4) 41256  | (8) 44256  | (4) 41256  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  MOUSE IRQ CONFIGURATION                   |
   |------------------------------------------------------------|
   |   IRQ    |    JP8     |    JP9     |   JP10    |   JP11    |
   |----------+------------+------------+-----------+-----------|
   |   IRQ3   |    Open    |    Open    |  Closed   |   Open    |
   |----------+------------+------------+-----------+-----------|
   |   IRQ4   |    Open    |   Closed   |   Open    |   Open    |
   |----------+------------+------------+-----------+-----------|
   |   IRQ5   |   Closed   |    Open    |   Open    |   Open    |
   |----------+------------+------------+-----------+-----------|
   |   IRQ9   |    Open    |    Open    |   Open    |  Closed   |
   +------------------------------------------------------------+