
M K - 2 3 2 F C    TOSHIBA
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/HH               Cylinders     856|  845|     |
Capacity form/unform    43/   53 MB        Heads           3|    3|     |
Seek time   / track  25.0/ 7.0 ms          Sector/track   36|   35|     |
Controller           IDE / AT              Precompensation
Cache/Buffer            32 KB FIFO BUFFER  Landing Zone
Data transfer rate    1.250 MB/S int       Bytes/Sector      512
                      4.000 MB/S ext
Recording method     RLL 2/7                        operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C         5 50    |    -10 50
Power: sleep              W     Humidity     %         8 80    |      8 80
       standby       10.0 W     Altitude    km    -0.300  3.000| -0.300  3.000
       idle               W     Shock        g         5       |     40
       seek               W     Rotation   RPM      3600
       read/write         W     Acoustic   dBA        48
       spin-up            W     ECC        Bit   WITH 11BIT BURST COR
                                MTBF         h      30000
                                Warranty Month
Lift/Lock/Park     YES          Certificates     CSA,IEC380,UL478,VDE         

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TOSHIBA  MK234FC/MK232FC  PRODUCT SPECIFICATION 71Y101658

  +---------------------------------------------------------++-1
  |                                                         || | PJ10
  |                                                         || |
  |                                                         |+-+
  |                                      PJ12-+ +----------+|XX I
  |                                         +-+ +----------+|XX N
  |                                                         |XX T
  |                                                         |XX E PJ11
  |                                                         |XX R
  |                                                         |XX F
  |                                                         |XX A
  |                                                         |XX C
  |                                                         |XX E
  |                                                         |XX
  |                                                         |X1
  |                                                         |
  |                                                         |XX Power
  |                                                         |XX
  +---------------------------------------------------------+



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TOSHIBA  MK234FC/MK232FC  PRODUCT SPECIFICATION 71Y101658

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

 There are 2 set of jumpers on the PCB, PJ10(12-pin) and PJ12(4-pin).

 PJ10 is used for customer options and manufacture test. PJ12 is TBD.
 Pin 1 to 8 of PJ10 is used for customer option and pin 9 to pin 12 is
 used for manufacture test. User should not set jumpers in 9-10 and
 11-12.


 PJ10 Definition
 ---------------
         +---+
       1 |o o|2   LED
       3 |o o|4   SLV_PRS
       5 |o o|6   MST/SLV
       7 |o o|8   DRV_PRS
       9 |o o|10  TEST1
       11|o o|12  TEST2
         +---+


 PJ10 1-2 LED
 -------------
 A jumper should be set across pins 1 and 2 to connect the active
 Signal to the -HOST Slave/Active signal (PJ11-39) on the drive's
 interface connector. This allows the use of an external LED. An
 external current limiting resistor is required. See also PJ10-3/4
 below. On a 2-drive system it is possible for each drive to be
 connected to an LED.


 PJ10 3-4 Slave Present
 ----------------------
 A jumper should be set across pins 3 and 4 when using a system which
 expects a slave drive to provide a SLAVE PRESENT signal. The jumper
 connects the -HOST Slave/Active signal (PJ11-39) on the drive's
 interface connector to system ground.

 Note: This jumper pair (3-4) and jumpers 1-2 are mutally exclusive.
       Both pairs should not be shorted simultaneously.


 PJ10 5-6 Master/Slave
 ---------------------
 If a jumper is set across pins 5 and 6, the drive is configured as a
 Master drive, otherwise is configured as a Slave drive.


 PJ10 7-8 Slave Drive Present
 ----------------------------
 Setting a jumper across pins 7 and 8 indicates that a Slave drive is
 present. In a 2-drive system, this must be set on the Master drive.


 PJ10 9-12 Test
 --------------
 These pins are factory set and should not be changed.


 Jumper settings
 ---------------
 Jumper           1 drive       2 drive
 Configuration               master   slave
 LED                O         (a)      (a)
 SLV_PRS            X          X       (b)
 MST/SLV            O          O        X
 DRV_PRS            X          O        X

 (a)
 In a two drive system, it is possible two drive LED with both drives.

 (b)
 If the disk drive is connected to some drive that requires that the
 signal, -SLAVE DRIVE PRESENT be supplied from the slave drive via the
 interface signal -HOST SLV/ACT, then this jumper must be installed.
 If this jumper is installed, the LED jumper must not be installed
 because the two jumpers are mutually exclusive.



 Adapter Board Option
 --------------------
 An adapter board is prepared for connecting TASK FILE INTERFACE drive
 (40 pin) to AT card slot.

 PART NUMBER        HDF3001ZZ01
 CIRCUIT DIAGRAM    34M901215


 Adapter Board Jumper Option
 ---------------------------
 3 jumpers labeled PJ1 through PJ3 are provided on the adapter board.
 The functions of the jumpers are described below.

 PJ1 Install jumper to set the board to use SECONDARY address.

 PJ2 Short pin 1-2 for the systems that do not read the STATUS
     register to reset IRQ14. Normally short pin 2-3.

 PJ3 Always open. Option for grounding pin 34 of the drive interface.
     This is needed if the drive needs this pin to be grounded when
     MASTER/SLAVE mode is used.



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TOSHIBA  MK232FC/MK234FC  PRODUCT SPECIFICATION 71Y101658

 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!


 Mounting Instructions
 ---------------------
 When mounting the drive, the cabinet frame should be spaced a minimum
 of 0.1 inch (2.5 mm) from the outer surface of the HDA and PCB to
 allow vibration to be absorbed by the drive vibration mounting.

 The drive may be mounted using the 4 tapped holes located on the
 side mounting frames or the 4 holes on the bottom frame of the drive.
 Screws should not penetrate more than 0.1 inches (2.5 mm) from the
 outer surface of drive frame in order to ensure adequate clearance
 between screw tips and the PCB.

 The drive frame is electrically isolated from the HDA (signal
 ground).

 Mounting screws M3X0.5 or 6-32UNC, four in bottom, two in each side.


 Cooling
 -------
 Cabinet packaging designs must provide ample air circulation around
 the drive to ensure environmental limits are not exceeded.

 The temperature at the points indicated below should be less than
 the values shown.

 Outside surfaces of HDA    140*F (60*C)
 Side frame                 149*F (65*C)
  (Heat sink side)
 IC's on the PCB            149*F (65*C)


 Power Input Connector
 ---------------------
 Drive side connector   : DUPONT P/N 68946-001 or equivalent
 No. of pins            : 4 pins
 Polarity               : Fixed by non-reversible shroud
 Cable-side connector   : AMP P/N 1-480424-0 and pin P/N 170147-2
                          (chain type), or 170148-2 (loose type)
 Power cable            : Must meet the maximum current consumption of
                          the drive and the voltage at the connector
                          end.


 Frame Ground Connector
 ----------------------
 The HDA module (head/disk assembly container) and DC ground (signal
 0V) are short-circuited at the time of factory shipment. However, the
 drive frame (the area where the tapped mounting tap holes are
 provided) is isolated from DC ground.

 DC ground connector
 Drive side        : Faston terminal AMP P/N 61761-2
 Mating connector  : Faston terminal AMP P/N 62187-1


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



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TOSHIBA  MK-232FC/MK-234FC  PRODUCT SPECIFICATION 71Y101658


 General Description
 -------------------
 The MK230FC comprises a series of intelligent disk drives, herein-
 after referred to as the MK230FC or simply as the drive.

 The drive features an IBM PC-AT(R) embedded controller that requires
 a simplified adapter board for interfacing to an AT or AT compatible
 bus. Size and mounting details are identical to industry standard
 3.5" mini floppy disk drives. All drives have high performance and
 feature fast access times, a formatted recording capacity of up to
 106 Megabytes and very high reliability. The drives employ Winchester
 technology and a closed loop servo control system.


 Installation Note for MK234FC
 -----------------------------
 General Information
 The new MK234FC units delivered in November 89 has a translation
 mode implemented. This could causes some problems by installation.
 Following is a description how to install this drive by working with
 the translation mode.

 1. Setup
    In a normal IBM BIOS table the drive parameter of the TOSHIBA
    drive is not implemented. (845 cylinder, 7 heads, 35 sectors, 101
    MB). Because of this purpose, user has to use a drive type by
    using the setup program, which has more capacity as the TOSHIBA
    drive.

    EXAMPLE
    Type 9: 900 cylinder, 15 heads, 17 sectors, 112 MB

 2. Low Format
    Low format run is not necessary, because in general the TOSHIBA
    drive is pre formatted with an interleave of 1:1.

 3. Fdisk
    By using DOS 3.3 the drive has to be setup in partitions of
    maximum size of 32MB. By using a drive type with higher capacity
    as the TOSHIBA be careful not to overtake the maximum capacity of
    the TOSHIBA drive (101 MB).

    EXAMPLE
    By using drive type 9, fdisk program shows following partition
    size:

        C : cylinder   0 to 256 (32 MB)
        D : cylinder 257 to 513 (32 MB)
        E : cylinder 514 to 770 (32 MB)
        F : cylinder 771 to 899 (16 MB)

    By using the complete size, which is shown by fdisk program, the
    TOSHIBA maximum capacity would be overtaken. So the last
    partition must be made smaller. This can be also done by the fdisk
    program. By this example the maximum size for partition F has to
    be 5 MB (40 cylinder):

       F : cylinder 771 to 801 (5 MB)


 Key Features
 ------------
 Dual-ported 32K byte FIFO data buffer

 56 bit computer generated ECC polynomial with 11 bit burst error
 correction capability

 Data transfer rate up to 4.0 megabytes/second using programmed I/O

 Automatic retry and corrections for read disk errors

 Reassignment of field-found defective sectors

 Dedicated Landing zone

 Fail-safe power down return to landing zone with automatic carriage
 lock

 Proven HDA technology with dedicated servo

 Emulation of IBM PC AT Task File and all AT commands plus additional
 commands

 24 mA AT bus drive capability

 Transparent defect mapping

 Powerful self-diagnostic capability


 Seek Time
 ---------
       +----------------------------------+--------+
       |                                  | MK230FC|
       +----------------------------------+--------+
       |Track-to-Track         msec. typ. |   7    |
       +----------------------------------+--------+
       |Average                msec. typ. |  25    |
       |                       msec. max. |  50    |
       +----------------------------------+--------+
       |Latency                msec. avg. |   8.33 |
       +----------------------------------+--------+


 Error Reporting
 ---------------
 At the start of the execution of the command, the command register
 is checked for condition which would lead to an aborted command. Then
 the operation is attempted. Any subsequent error terminates the
 command at the point that it is discovered. The errors that are valid
 for each command are summarized below.
 -----------------+----------------------------+---------------------+
 COMMAND          |ERROR REGISTER              |STATUS REGISTER      |
                  +----------------------------+---------------------+
                  |BBK|UNC|IDNF|ABRT|TK00 |DAM |DRDY|DWF|DSC|CORR|ERR|
 -----------------+---+---+----+----+-----+----+----+---+---+----+---+
 Recalibrate      |   |   |    | V  | V   |    | V  | V | V |    | V |
 Read Sector      | V | V | V  | V  |     | V  | V  | V | V | V  | V |
 Read Sec. Long   | V |   | V  | V  |     | V  | V  | V | V |    | V |
 Write Sector     | V |   | V  | V  |     |    | V  | V | V |    | V |
 Write Sec. Long  | V |   | V  | V  |     |    | V  | V | V |    | V |
 Read Verify Sec. | V | V | V  | V  |     | V  | V  | V | V | V  | V |
 Format Track     |   |   | V  | V  |     |    | V  | V | V |    | V |
 Seek             |   |   | V  | V  |     |    | V  | V | V |    | V |
 Exec. Drive Diag.|   |   |    | V  |     |    |    |   |   |    | V |
 Set. Parameters  |   |   |    | V  |     |    |    |   |   | V  | V |
 Read Buffer      |   |   |    | V  |     |    |    |   |   |    | V |
 Write Buffer     |   |   |    | V  |     |    |    |   |   |    | V |
 Identify Drive   |   |   |    | V  |     |    | V  | V | V |    | V |
 Power Control    |   |   |    | V  |     |    |    |   |   |    | V |
 Inval.Cmnd. Codes|   |   |    | V  |     |    |    |   |   |    | V |
 -----------------+---+---+----+----+-----+----+----+---+---+----+---+

 Key:
 BBK   = Bad block detected
 UNC   = Uncorrectable data error
 IDNF  = Requested ID not found
 ABRT  = Abort command error
 TK00  = Track zero not found error
 DAM   = Data address mark not found error
 DRDY  = Drive not ready detected
 DWF   = Drive write fault detected
 DSC   = Disk seek complete not detected
 CORR  = Corrected data error
 ERR   = Error bit in the Status Register
 V     = Valid errors for each command


 Format operation
 ----------------
 MK230FC has ability to maintain defects by itself. The drive has own
 information about the defects on the media and will handle defective
 sectors by itself. MK230FC is shipped already formatted by the manu-
 facturer assigning defects. So user should not format (Low level
 format) the drive unless detected new defect (growing defect).

 To assign the defective sector to spare location, the user should set
 40H for the ID field data of FORMAT TRACK command. Then the drive
 will alternate sector during format operation. It is not correct to
 format the track when there is no growing defects. The drive may
 alternate sector by its own defect information on the media. The
 previously alternated sector will be alternated again and may fall in
 to lack of alternate sectors.


 Product Description
 -------------------
 The MK230FC consists of an HDA (Head Disk Assembly), a printed
 circuit board and a steel frame. The HDA is a sealed module and
 contains a disk spindle assembly, a head actuator assembly and an air
 filtration system. Reliability is enhanced through the use of
 Winchester technology. The actuator is a rotary voice coil motor and
 provides high-speed access.

 The disks are driven directly by a DC spindle motor. Air filtration
 is provided by means of a high performance air filtration system
 using both breather and circulation filters.

 The drive provides a carriage lock mechanism which actuates auto-
 matically on power down, thus preventing head/media damage during
 non-operating or transportation conditions.

 The printed circuit board is located externally to the HDA and
 contains all the electronic circuitry necessary to operate the drive
 except the head drivers. The board also holds the power supply and
 interface signal connectors. Only the head control IC's are located
 inside the HDA.


