CORONA COMPUTER CORPORATION

400 HDC

Data bus: 8-bit, ISA

Size: Full-length, full-height card

Hard drives supported: Two MFM ST506 drives

Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB

[Image]

                           CONNECTIONS

                  Function                        Location

  20-pin data cable connector-drive 1                CN1

  20-pin data cable connector-drive 0                CN2

  34-pin control cable connector-hard drive          CN3

                       DRIVE TYPE COFIGURATION - SW1

  Heads    Cyl.   Switch    Switch    Switch   Switch    Switch    Switch
                    1         2         3        4         5         6

    2      612      on       off       off       on       on        on

    4      306      on       off       off      off       off       off

    4      306     off       off       off      off       off       off

    4      612      on       on        on       off       off       off