
L X T - 2 0 0 A    MAXTOR
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/HH               Cylinders    1320|  816|     |
Capacity form/unform   207/      MB        Heads           7|   15|     |
Seek time   / track  15.0/ 3.0 ms          Sector/track   44|   32|     |
Controller           IDE / AT              Precompensation
Cache/Buffer            32 KB READ-AHEAD   Landing Zone
Data transfer rate    1.250 MB/S int       Bytes/Sector      512
                      8.000 MB/S ext
Recording method     RLL                            operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C         5 50    |    -40 60
Power: sleep              W     Humidity     %         5 80    |      5 90
       standby       10.0 W     Altitude    km                 |
       idle               W     Shock        g        10       |     50
       seek               W     Rotation   RPM      3600
       read/write         W     Acoustic   dBA        40
       spin-up            W     ECC        Bit   56
                                MTBF         h     150000
                                Warranty Month
Lift/Lock/Park     YES          Certificates                                  

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                        L   A   Y   O   U   T
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MAXTOR   LXT-200A TECHNICAL REFERENCE 1019707

  +---------------------------------------------------------+
  |                                                         |
  |+-+                                                      |
  || |J4                                                    |XX 40-pin
  |+-+                                                      |XX AT-Bus
  |+-+                                                      |XX
  || |J2                                                    |XX
  || |                                                      |XX
  || |                                                      |XX
  |+-+                                                      |XX
  |+-+                                                      |XX
  || |J5                                                    |XX
  || |                                                      |XX
  |+-+                                                      |XX
  |                                                         |XX
  |                                                +--J6-+  |
  |                                                1-----+  |XX Power
  |                                                         |XX
  +---------------------------------------------------------+



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                      J   U   M   P   E   R   S
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MAXTOR   LXT-200A TECHNICAL REFERENCE 1019707

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

 J6  Ten Pin Header
 ------------------
 A ten pin header is provided that allows for installing or
 removing jumpers to configure the drive.

 The drive is shipped configured for use in a single drive system.
        +--------------+
        | 9  7  5  3  1|
        |10  8  6  4  2|
        +--------------+


 J6  Master/Slave
 ----------------
 Selection of the master drive is made by removing the master/slave
 jumper. Selection of the slave drive is made by installing the
 master/slave jumper.

     Pins 1-2   OPEN    Only drive in single system
                        Master in dual drive system
                CLOSED  Slave in dual drive system

 The Master/Slave Jumper is used to configure the drive as a Master
 or Slave. If the jumper is removed, the drive is a Master. If the
 jumper is installed, the drive is a Slave. For single drive systems,
 the jumper should be removed.

 Drive is shipped configured for use in a single AT IDE drive system
 with all J6 jumpers open except for J6 3-4 (drive active status for
 LED), which is optional in single or master drive installations.


 J6  Drive Active Status LED
 ---------------------------
 Installing the drive active jumper provides a current source for a
 drive active LED to pin 39 of the interface. If the slave present
 jumper is installed, the drive active jumper must not be installed.

     Pins 3-4   OPTIONAL One drive in single drive system
                OPTIONAL Master in dual drive system
                OPEN     Slave in dual drive system


 J6  Slave Present
 -----------------
 Installing the slave present jumper provides an output on DASP- that
 the slave drive is present. If the drive active jumper is installed,
 the slave present jumper must not be installed. The slave present
 jumper is not needed if both drives in the system are the LXT-200A.

     Pins 5-6   OPEN     One drive in single drive system
                         Master in dual drive system
                OPTIONAL Slave in dual drive system

 The Slave Present jumper is used by the slave to indicate its
 presense. It should be installed on the slave drive only. This
 jumper is not necessary if both drives are Maxtor LXT drives.


 J6  Two Drive System
 --------------------
 Installing the two drive system jumper on the master drive indicates
 that a slave drive is present.

     Pins 7-8   OPEN     One drive in single drive system
                CLOSED   Master in dual drive system
                OPEN     Slave in dual drive system

 The Two Drive System jumper is used by the master drive to indicate
 the presense of a slave drive. This jumper is not installed by the
 slave drive or if only one drive is used.


 J6  Manufacturing Jumper
 ------------------------
     Pins 9-10  OPEN     Single Drive in System
                OPEN     Master Drive in System
                OPEN     Slave in System

 The manufacturing jumper is for internal use only. Installing this
 jumper may result in damage to the drive and loss of data.



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MAXTOR   LXT-213A/340A/535A  OEM TECHNICAL MANUAL 1023789, REV. B

 Notes of Installation
 =====================

 Installation direction
 ----------------------

     horizontally                           vertically
   +-----------------+             +--+                       +--+
   |                 |             |  +-----+           +-----+  |
   |                 |             |  |     |           |     |  |
 +-+-----------------+-+           |  |     |           |     |  |
 +---------------------+           |  |     |           |     |  |
                                   |  |     |           |     |  |
                                   |  |     |           |     |  |
 +---------------------+           |  +-----+           +-----+  |
 +-+-----------------+-+           +--+                       +--+
   |                 |
   |                 |
   +-----------------+

 The drive will operate in all axis (6 directions).


 Mounting
 --------
 The drive may be mounted in any position. Certain switching power
 supplies may emanate electrical noise, which can degrade the
 specified read error rate. For best results, orient the drive so that
 the PCB assembly is not adjacent to these noise sources.

 Twelve mounting holes, four on the bottom and four on each side, are
 provided for mounting the drive into an enclosure. The size and
 location of these holes, are identical to industry standards.

 Caution: Mounting screw lengths must be chosen so that no more than
 0.125 inch of the screw is available to enter the frame mounting
 hole. The screw length, if incorrect, will damage the PCB during
 installation and void the warranty. The torque applied to the
 mounting screws should be between 9 and 12 inch-pounds.

 The faceplate is clipped to the front of the HDA and may be removed
 in installations that do not require it. Lift up on the faceplate
 clips and unplug the LED cable from the PCB.


 Air Flow Requirements
 ---------------------
 It is recommended that air flow over the drive PCBA be a minimum of
 25 cubic feet per minute.

 The maximum temperature of the HDA cover (measured at a point
 centered on the cover beneath the PCB), should not be greater than
 11* C above the ambient temperature (measured 1/8 inch away from the
 PCB). For some installations 200 LFM of air flow may be required to
 maintain the temperature specified.


 Installation Requirements
 -------------------------
 The LXT ATA drives must operate in a temperature range between 41*F
 and 122*F (5*C and 50*C). The drive should be installed in
 applications where temperature extremes outside of this range are
 avoided.

 Caution: These requirements must be met to ensure proper functioning
 of the drive. If they are not met, data loss and/or permanent damage
 to the drive may result.

 The faceplate is screwed to the front of the HDA in some LXT models,
 and clipped to the front in others. The faceplate may be removed in
 installations that do not require it.


 Shipping
 --------
 At power down, the heads are automatically positioned over the
 dedicated landing zone (nondata) on each disk surface. The automatic
 shipping look solenoid is also engaged at this time. Maxtor ships the
 drive in single and multipack shipping containers. Users can ship the
 drive installed when the nonoperating shock and vibration limits are
 not exceeded.


 Interface
 ---------
 This chapter describes the interface requirements of the LXT ATA
 drives, which are compatible with the AT-BUS. Data is transferred in
 a 16-bit wide parallel data path from the host to the drive. Data
 transfer is controlled by commands sent from the host. The drive
 performs all operations necessary to write data to or read data from
 the medium. Data read from the medium is placed in a buffer prior to
 being transferred to the host.

 This allows two drives to be connected to the host. The primary drive
 is designated as the master drive and the secondary drive is
 designated as the slave drive.

 The maximum cable length connecting the host and the drives is
 twenty four inches (0.61 meters).


 Interface Connector
 -------------------
 The interface connector is a 40-pin dual-row header connector. A key
 for the mating cable connector is provided by the removal of pin 20.
 The corresponding hole on the cable connector should be plugged. The
 cable connector should be keyed to prevent the possibility of
 installing it upside down.

 Recommended part numbers for the mating connector and cables are
 shown below. Equivalent parts may be used.

 Connector         3M-3417-7000 (Strain Relief 3448-2040, AMP P/N
                   1-499506-0)
 Cable             Flat Cable (Stranded AWG 28) 3M-3365-40
 Shielded Cable    Flat Cable (Stranded AWG 28) 3M-3517-40



 J3  Power Connector
 -------------------
 The four-pin DC power connector J3 is similar to AMP's MATE-N-LOOK
 connector, part number 350543-4, however, is surface mounted to the
 PCB rather than freehanginng as the AMP part is. Part numbers for the
 recommended mating connector and contacts are shown below.

      +------------+   pin 1    +12 VDC
      | 4  3  2  1 |   pin 2    +12 V Ground Return
      +------------+   pin 3    + 5 V Ground Return
                       pin 4    + 5 VDC

 Type of cable     18 AWG
 Connector         AMP 1-480424-0
 Contacts          AMP 61173-4 (Loose Piece), AMP 350078-4 (Strip)


 Buffer Access
 -------------
 The LXT products use zone density recording. This recording technique
 varies the number of bytes per track (Mbytes/sec) which must be read
 or written.

 The LXT ATA drives are manufactured with either 32K or 64K of buffer
 RAM. To confirm the buffer size of your drive, execute the IDENTIFY
 command.


 Translate Mode
 --------------
 The drive always operates in the translate mode because it uses
 zoned recording techniques. The drive firmware translates logical
 sector requests from the host into corresponding physical sector
 requests.

 Because the host communicates with the drive using physical drive
 parameters, a mapping address translation is needed to fully utilize
 the capacity of the drive. This also makes selecting a drive type
 from the BIOS tables easier. The drive type selected should have a
 capacity equal to or less than the formatted capacity of the drive.


 Note: To achieve full memory capability of the LXT-535A drive, an
 advanced BIOS must be used. The standard BIOS allows for only 1,024
 cylinders (1,024 x 16 x 63 x 512 = 528 MB).


 Air Filtration System
 ---------------------
 The disks and read/write heads are assembled in a Class 100
 environment and then sealed within the head disk assembly (HDA).
 The HDA contains an absolute filter, mounted inside the casting, to
 provide constant internal air filtration.


 J4 Service Connector LXT-200A
 -----------------------------
 Connector J4 is a service connector providing the RS-232 interface
 and the ability to carry the LED signal beyond the drive. The RS-232
 is used to load new firmware updates to the drive. The service
 connector is a ten-pin part. The mating connector is a Berg 6976410
 part.

 When an LED is connected to pin nine (+) and pin ten (-), that LED
 functions in the same manner as the LED which is mounted on the
 drive's faceplate. This is typically used in cases where the drive is
 mounted in a position where the drive's LED is not visible and the
 faceplate is removed.

 Pins two through four are the RS-232 lines used to down load firmware
 updates to the microprocessor which are then stored on the disk.
 Pins three (transmit data) and four (receive data) are the main
 communication lines. Pin two is used to debug the processor and for
 a non-maskable interrupt. Pins five and six are signal ground lines.


 Ground Connector
 ----------------
 Logic ground and chassis ground are tied together and an insert
 description lug is provided for connection to system ground.



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                      F   E   A   T   U   R   E  S
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MAXTOR   LXT-200A  TECHNICAL MANUAL 1019707

 Product Overview
 ----------------
 The LXT-200A disk drives are high capacity, high performance, random
 access storage devices which use nonremovable 3.5-inch disks as
 storage media. Each disk surface employs one moveable head to access
 the data tracks. The total formatted capacity of each drive is 201
 megabytes at 512 bytes per sector. The unformatted capacity is 234
 megabytes.

 The drive is designed to operate in an IBM PC/AT or compatible
 computer. The host interface uses a task file structure which is the
 standard interface for PC/AT rigid disk controllers. Because the host
 interfaces with the drive directly through the task file register,
 an address decoder or buffer control logic is required either in the
 motherboard or in an adapter board.


 Defect Management
 -----------------
 A complicated flaw scan process to generate the defect list is done
 at the factory for every drive. As shipped from the factory, the
 drive is pre-formatted with all defects reassigned to spare sectors.
 When reassigning defect sectors, the track is laid out again so that
 the defect area is skipped. One-to-one interleave and skewing factors
 are rearranged to maintain the streaming performance. The drive is
 assumed to be error-free after formatting.


 Head Positioning Mechanism
 --------------------------
 The read/write heads are mounted on a head/arm assembly, which is
 then mounted on a ball bearing supported shaft. The voice coil,
 an integral part of the head/arm assembly, lies inside the magnet
 housing when installed in the drive.

 Current from the power amplifier, controlled by the servo system,
 induces a magnetic field in the voice coil which either aids or
 opposes the field around the permanent magnets. This reaction causes
 the voice coil to move within the magnetic field. Since the head/arm
 assemblies are connected to the voice coil, the voice coil movement
 is transferred, through the pivot point, directly to the heads,
 to position them over the desired cylinder.

 Actuator movement is controlled by the servo feedback signal from
 the servo head. The servo information is prewritten at the factory,
 and is used as a control signal for the actuator to provide track
 crossing signals during a seek operation, track following signals
 during on cylinder operation, and timing information, such as index
 and servo clock. The servo information also provides the timing
 to divide a track into sectors used for data storage. The servo
 control system has a dedicated microprocessor for fast, optimized
 performance.


 Drive Mechanism
 ---------------
 The HDA is a sealed subassembly containing the mechanical portion of
 the drive. A brushless DC motor contained within the spindle hub
 rotates the spindle and is controlled by a dedicated microprocessor.
 The motor and spindle are dynamically balanced to ensure a low
 vibration level. Shock mounting is provided internally in the HDA
 to minimize transmission of vibration through the frame.

 The frame is the mechanical assembly holding the HDA and printed
 circuit board (PCB).


 Read/Write Heads and Disks
 --------------------------
 The drive employs state-of-the-art sliders and flexures. The
 configuration of the sliders and flexures provides improved
 aerodynamic stability, superior head to disk compliance, and a
 higher signal-to-noise ratio.

 The media uses a nickel-cobalt metallic film that yields high
 amplitude signals and very high resolution performance compared
 to conventional oxide coated media. It also provides an abrasion and
 impact resistant surface, decreasing the potential for damage caused
 by shock and vibration during shipping.

 The data on each of the media surfaces is read by one read/write
 head. There is one surface dedicated to servo information in each
 drive.


 Self-Configuration
 ------------------
 When the drive powers up or is reset, it configures itself in
 accordance with its default general drive parameters.


 Buffering Scheme
 ----------------
 The disk drive buffer is a 32-kilobyte FIFO buffer. There are 32,767
 bytes available for data storage. The buffer controller allows
 transfer to the disk and from the host simultaneously, or from the
 disk and to the host simultaneously.


 Error Register
 --------------
 The error register contains status from the last command executed by
 the drive. The contents of this register are valid only when the
 error bit (ERR) is set in the status register, unless the drive has
 just powered up or completed execution of its internal diagnostic, in
 which case the register contains a status code.


 Translate Mode
 --------------
 The drive always operates in the translate mode because it uses zoned
 recording techniques. The drive firmware translates requests from
 the host into corresponding physical sector requests.

 Because the host communicates with the drive using physical drive
 parameters (i.e., cylinder number, head number, and sector number), a
 mapping address translation is needed to fully utilize the capacity
 of the drive. This also makes selecting a drive type from the BIOS
 tables easier. The drive type selected should have a capacity equal
 to or less than 201 megabytes.


 Execute Drive Diagnostic Command
 --------------------------------
 The EXECUTE DRIVE DIAGNOSTIC command performs the internal
 diagnostic tests implemented by the drive. The diagnostic tests are
 executed only upon receipt of this command. They are not to be
 executed automatically at power up or after a reset. The drive sets
 BSY immediately upon receipt of the command. If the drive is a slave,
 the disk active/slave present signal is always asserted.

 The drive then performs the diagnostic tests and reports the results.
 If the drive is a master and a slave is connected, it waits up to 5
 seconds for the slave to complete diagnostics, checks the state of
 the PDIAG signal and then reports the diagnostic results. If the
 drive is a master and a slave is not connected, it reports only its
 diagnostic results. Following this, the drive clears BSY, and
 generates an interrupt. The value in the error register should be
 viewed as an eight-bit code value and not as bit significant flags.


 Standards and Regulations
 -------------------------
 The Maxtor LXT-200A disk drives are intended to satisfy the following
 standards and regulations:

 UNDERWRITERS LABORATORIES (UL) is United States safety; UL 478,
 Standard for Safety, Electronic Processing Units and Systems.

 CANADIAN STANDARDS ASSOCIATION (CSA) is Canadian safety; CSA C22.2
 No. 220, 1986, Information Processing and Business Equipment
 (Consumer and Commercial Products).

 INTERNATIONAL ELECTROTECHNICAL COMMISSION (IEC) is International
 safety commission; IEC950 (formerly 380), Safety of Information
 Technology Equipment.

 FEDERAL COMMUNICATIONS COMMISSION (FCC) is United States radiation
 emissions; Part 15, Subpart J, Class B Consumer Computing Devices.



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MAXTOR    IDE INSTALLATION

            INSTALLATION PROCEDURE FOR AN IDE DRIVE
            ---------------------------------------
 1. Install a 40 pin Data Cable ensuring that pin 1, which can be
    identified by the striped edge of the cable, is closest to the
    power connector on the drive.

 2. Install a DC power cable to the back of the drive.

 3. Verify the jumper configurations for Master/Slave operation
    (Note:  Master will be the bootable drive. The slave will not
    be bootable.) Also make sure the existing C: drive is jumped
    to be the Master in a two drive system, not the only drive in
    the system.

 4. Apply power to the computer.

 4a. When memory test is complete go into your system's Standard
     CMOS set-up.
     (Note: There are various ways to get into CMOS set-up, please
     refer to system's manual for instructions.)

 4b. If your system's BIOS supports a user programmable drive
     type, program the BIOS with the default parameters of your
     drive. If your system does not support a user programmable
     drive type choose parameters that closely match but do not
     exceed the drives MegaByte capacity. Escape from set-up
     then choose write to CMOS and exit.

 5. Boot from a DOS diskette that has FDISK.EXE and FORMAT.COM on
    it. At the A> prompt type in FDISK. At the menu options select
    option 1 to create a DOS partition. Another menu will appear
    and from those options choose 1 to create a Primary DOS
    partition. Select yes to make 1 large partition and it will
    automatically become active. Then escape from FDISK.

 6. At the A> prompt type in FORMAT C:/S This does a high-level
    format on the drive and transfers the system files in order for
    the drive to be bootable. (Note: IDE drives are low-level
    formatted from the manufacturer and only need a high-level
    format).

    To configure the drive as a slave drive repeat steps 1-4 and
    proceed with steps 5a. and 6a. as follows:

  5a. At the C> prompt type in FDISK. When the menu options appear
      select option 5 to switch to the second drive. Enter fixed
      disk drive number 2. Then choose option 1 to create a DOS
      partition, then select option 1 again to create a Primary DOS
      partition or option 2 to create an Extended DOS partition.
      (Note: C and D drives will always be the Primary partitions
      but only the Primary partition on C: will have a status of
      active).

  6a. Proceed with a high-level format on the drive by typing FORMAT
      D: (Note: Make sure the correct drive letter has been selected
      for format).

 7. The drive is now bootable. As a test remove the DOS diskette
    from A and press reset to reboot the computer,  a  C> should be
    displayed, the drive is now ready for operation.


