Hard Drive: MAXTOR: LXT-200A 207MB 3.5"/HH IDE / AT
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
Layout
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 +---------------------------------------------------------+
Jumpers
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.
Install
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.
Features
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.
General
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.
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