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Hard Drive: KYOCERA: KC 20B 21MB 3.5"/HH MFM ST506




K C   2 0 B    KYOCERA
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/HH               Cylinders     615|     |     |
Capacity form/unform    21/   36 MB        Heads           4|     |     |
Seek time   / track  62.0/15.0 ms          Sector/track   17|     |     |
Controller           MFM / ST506           Precompensation   300
Cache/Buffer               KB              Landing Zone      615
Data transfer rate    0.625 MB/S int       Bytes/Sector      512
                      0.625 MB/S ext
Recording method     MFM                            operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C         5 50    |    -40 60
Power: sleep              W     Humidity     %         8 80    |      5 90
       standby            W     Altitude    km    -0.300  3.000| -0.300 12.000
       idle               W     Shock        g        10       |     40
       seek               W     Rotation   RPM      3600
       read/write    10.0 W     Acoustic   dBA        40
       spin-up            W     ECC        Bit
                                MTBF         h      40000
                                Warranty Month
Lift/Lock/Park     NO           Certificates                                  

Layout

KYOCERA KC-20B/30B TECHNICAL MANUAL (DEUTSCHES HANDBUCH)

  +---------------------------------------------------------+
  |                                                         |XX
  |                                                         |XX P2
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX1
  |                                                   +-+   |
  |                                                   +-+S4 |XX
  |                                                   +-+S3 |XX
  |                                                   +-+S2 |XX
  |                                                   +-+S1 |XX P1
  |                                                    ++   |XX
  |                                                    |RN1 |XX
  |                                                    ||   |XX
  |                                                    ||   |XX
  |                                                   1++   |XX1
  |                                                       P3|
  |                                                  XXXXXXX|Power
  +---------------------------------------------------------+

Jumpers

KYOCERA KC-20B/30B TECHNICAL MANUAL (DEUTSCHES HANDBUCH)

Jumper Setting
==============

 J2  SCSI ID
 -----------
   +----------+-------------------------------+
   | Drive    |        Jumpers                |
   | Select   |  S1   |  S2   |  S3   |  S4   |
   +----------+-------+-------+-------+-------+
   |    0     | CLOSED| OPEN  | OPEN  | OPEN  |
   |    1     | OPEN  | CLOSED| OPEN  | OPEN  |
   |    2     | OPEN  | OPEN  | CLOSED| OPEN  |
   |    3     | OPEN  | OPEN  | OPEN  | CLOSED|
   +----------+-------+-------+-------+-------+

 J3   DC Power and pin connector assignments
 -------------------------------------------
      +-----J3-----+   pin 1    +12 VDC
      | 4  3  2  1 |   pin 2    +12 Volts Return
      +------------+   pin 3    + 5 Volts Return
                       Pin 4    + 5 VDC

Install

KYOCERA KC-20B/30B TECHNICAL MANUAL (DEUTSCHES HANDBUCH)

Notes on Installation
=====================

Drive mounting
--------------

     horizontally             vertically
   +-----------------+   +--+             +--+ +------------------+
   |                 |   |  +-----+ +-----+  | |                  | x
   |                 |   |  |     | |     |  | x+----------------+x
 +-+-----------------+-+ |  |     | |     |  | ||x              x||
 +---------------------+ |  |     | |     |  | ||  x          x  ||
                         |  |     | |     |  | ||    x      x    ||
      x           x      |  |     | |     |  | ||      x  x      ||
 +------x------x-------+ |  +-----+ +-----+  | ||       xx       ||
 +-+------x--x-------+-+ +--+             +--+ ||     x    x     ||
   |       xx        |                         ||   x        x   ||
   |     x    x      |                         || x            x ||
   +---x--------x----+                         |x                x|
     x            x                           x++----------------++x
      UNACCEPTABLE!                                UNACCEPTABLE!
      Never install PC board on the Top!

Cable Interconnection - 4 Drive System
--------------------------------------

       HOST
   +-----------+                                +-----------------+
   |           +---o---Control------------------+P1     Drive 1   |
   |           |   |    +-------Data------------+P2               |
   |           |   |    |             +-Power---+P3        ...    |
   |           |   |    |             |         +-----------------+
   |           |   |    |             |         +-----------------+
   |Controller |   o----+-------------+---------+P1     Drive 2   |
   |           |   |    | +-----------+---------+P2               |
   |           |   |    | |           o---------+P3        ...    |
   |           |   |    | |           |         +-----------------+
   |           |   |    | |           |         +-----------------+
   +-----------+   o----+-+-----------+---------+P1     Drive 3   |
   |           |   |    | | +---------+---------+P2               |
   |           +---+----+ | |         o---------+P3        ...    |
   |           +---+------+ |         |         +-----------------+
   |Data       +---+--------+         |         +-----------------+
   |Separator  |   +------------------+---------+P1     Drive 4   |
   |           +----------------------+---------+P2               |
   |           |                      o---------+P3        XXX    |
   +-----------+                      |         +-----------------+
                       DC voltages----+

... = Terminator Pack removed

XXX = Terminator Pack installed

Maximum cable length 6 meter.













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