UNIDENTIFIED

B158

Processor              V 20 (exact location unidentified)
Processor Speed        4MHz
Chip Set               Unidentified
Video Chip Set         None
Maximum Onboard Memory 1MB
Maximum Video Memory   None
Cache                  None
BIOS                   NEL
Dimensions             254mm x 218mm
I/O Options            None
NPU Options            8087 (exact location unidentified)

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Keylock                     J1       Turbo LED                   J4

  Speaker                     J2       Turbo switch                J5

  Power LED                   J3       Reset switch                J6

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

      DRAM parity check disabled             SWA/1              On

      DRAM parity check enabled              SWA/1             Off

  »   Factory configured - do not alter      SWA/2              On

                            DRAM CONFIGURATION

  Size    Bank 0    Bank 1    Bank 2    Bank   Bank 3    Bank     Bank 4
                                        2A               3A

  512KB     (9)       (9)     None     None     None    None       None
           41256     41256

  640KB     (9)       (9)      (2)      (1)      (2)     (1)       None
           41256     41256    4464     4164     4464    4164

   1MB     None      None     None     None     None    None        (9)
                                                                  411000

   DRAM JUMPER/SWITCH CONFIGURATION

   Size      JP1      SWA/3    SWA/4

   None    Closed      On        On

  512KB    Closed      Off       On

  640KB    Closed      On       Off

   1MB      Open       Off      Off

                MONITOR SELECTION

     Setting          SWA/5            SWA/6

      None              On               On

   Monochrome          Off              Off

  Color 40 x 25        Off               On

  Color 80 x 25         On              Off

                  FLOPPY DRIVE SELECTION

  Drives installed         SWA/7               SWA/8

         1                  On                  On

         2                  Off                 On

         3                  On                  Off

         4                  Off                 Off