HEDAKA

HED-986 (DIP VERSION)

Processor         80286
Processor Speed   12/16/20MHz
Chip Set          Hedaka
Max. Onboard DRAM 2MB
Cache             None
BIOS              AMI
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       80287

[Image]

                                CONNECTIONS

  Purpose                  Location   Purpose                    Location

  Turbo LED                  CN1      Auxiliary keyboard           CN7

  Turbo switch               CN3      Power LED & keylock          CN9

  Speaker                    CN4      Speed display               CN12

  Reset switch               CN5

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Monitor type select color                JP8           pins 2 & 3
                                                              closed

      Monitor type select monochrome           JP8           pins 1 & 2
                                                              closed

  »   NPU clock select internal               JP15           pins 2 & 3
      oscillator                                              closed

      NPU clock select external               JP15           pins 1 & 2
      oscillator                                              closed

  »   NPU speed select OSC/1                  JP14           pins 1 & 2
                                                              closed

      NPU speed select OSC/3                  JP14           pins 2 & 3
                                                              closed

                     DRAM CONFIGURATION

  Size      Bank 0       Bank 1       Bank 2       Bank 3

  512KB    (4) 44256      NONE         NONE         NONE

   1MB     (4) 44256    (4) 44256      NONE         NONE

  1.5MB    (4) 44256    (4) 44256    (4) 44256      NONE

   2MB     (4) 44256    (4) 44256    (4) 44256    (4) 44256

                  DRAM PARITY CONFIGURATION

  Size        P-0          P-1          P-2          P-3

  512KB    (2) 41256      NONE         NONE         NONE

   1MB     (2) 41256    (2) 41256      NONE         NONE

  1.5MB    (2) 41256    (2) 41256    (2) 41256      NONE

   2MB     (2) 41256    (2) 41256    (2) 41256    (2) 41256