CORONA COMPTER CORPORATION

DESKTOP PC

Processor                  8088
Processor Speed            Unidentified
Chip Set                   Unidentified
Video Chip Set             Unidentified
Maximum Onboard Memory     512KB
Maximum Video Memory       Unidentified
Cache                      None
BIOS                       Unidentified
Dimensions                 355mm x 304mm
I/O Options                Floppy drive interface, parallel port, serial
                           ports (3), light pen connector, VGA port
NPU Options                8087

[Image]

                                CONNECTIONS

  Purpose                    Location   Purpose                  Location

  Speaker                      P2       VGA port                   J7

  Light pen connector          P3       Serial port                J8

  Floppy drive interface       P4       Parallel port              J9

  Serial port                  J5       Reset switch               S2

  Serial port                  J6

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

      BIOS type select 8KB                    JP1             Closed

      BIOS type select 16KB                   JP1              Open

      Graphics memory located in second       JP2           Pins 1 & 3
      256KB                                                   closed

      Graphics memory located in first        JP2           Pins 2 & 4
      256KB                                                   closed

      Keyboard voltage select 12v             JP3           Pins 1 & 2
                                                              closed

      Keyboard voltage select 5v              JP3           Pins 2 & 3
                                                              closed

      NPU not installed                       S1/1              On

      NPU installed                           S1/1             Off

      Floppy drives installed 1               S1/2              On

      Floppy drives installed 2               S1/2             Off

                      DRAM CONFIGURATION

    Size       Bank 0       Bank 1       Bank 2       Bank 3

   128KB      (16) 4164      None         None         None

   256KB      (16) 4164    (16) 4164      None         None

   384KB      (16) 4164    (16) 4164   (16) 4164       None

   512KB      (16) 4164    (16) 4164   (16) 4164    (16) 4164

  Note: The location of banks 0, 1, 2 & 3 are unidentified.

  DRAM SWITCH CONFIGURATION

   Size      S1/5     S1/6

  128KB       On       On

  256KB      Off       On

  384KB      Off       Off

  512KB      Off       Off

                   MONITOR SELECTION

      Setting             S1/3               S1/4

       None                On                 On

  Color (40 x 25)         Off                 On

  Color (80 x 25)          On                Off

    Monochrome            Off                Off