M R 5 3 3 MITSUBISHI
NO MORE PRODUCED Native| Translation
------+-----+-----+-----
Form 5.25"/HH Cylinders 977| | |
Capacity form/unform 21/ 30 MB Heads 5| | |
Seek time / track 28.0/ 6.0 ms Sector/track 17| | |
Controller MFM / ST506 Precompensation 1
Cache/Buffer KB Landing Zone
Data transfer rate 0.625 MB/S int Bytes/Sector 256
0.625 MB/S ext
Recording method MFM operating | non-operating
-------------+--------------
Supply voltage 5/12 V Temperature *C 10 50 | -40 60
Power: sleep W Humidity % 8 80 | 5 95
standby W Altitude km 2.000| 12.000
idle 19.0 W Shock g 2 | 30
seek W Rotation RPM 3600
read/write W Acoustic dBA
spin-up W ECC Bit
MTBF h 30000
Warranty Month
Lift/Lock/Park YES Certificates
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L A Y O U T
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MITSUBI. MR533/MR535 PRODUCT SPECIFICATION
+---------------------------------------------------------+
| |XX
| |XX J2
| |XX
| |XX
| SW2 8--+ | 1
| | | |XX
| | | |XX
| | | |XX
| | | |XX
| 1--+ |XX J1
| SW1 6--+ |XX
| | | |XX
| | | |XX
| 1--+ |XX
| | 1
| |XX J6
| |XX Power
+---------------------------------------------------------+ 1
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J U M P E R S
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MITSUBI. MR533/MR535 PRODUCT SPECIFICATION
Jumper Setting
==============
There are two switches on the main circuit board of this drive.
SW1 Termination Switch
----------------------
+-----------+
|o o o o o o|ON
|x x x x x x|OFF
+1-2-3-4-5-6+
+-+-+-+-+-+------- Termination Switch
To provide termination for the last unit, al switches of SW1 should
be set in the ON position. On all other units, all the switches of
SW1 should be set in the OFF position.
SW2 Drive Select
-----------------
+---------------+
|x o o o x o o o|ON
|o x x x o x x x|OFF
+1-2-3-4-5-6-7-8+
| | | | | | | +--- Set OFF position
| | | | | | +----- Set OFF position
| | | | | +------- Set OFF position
| | | | +--------- RADIAL (R)
| | | +----------- Drive Select 1 (DS1)
| | +------------- Drive Select 2 (DS2)
| +--------------- Drive Select 3 (DS3)
+----------------- Drive Select 4 (DS4)
In multiple unit connection it is necessary to configure each drive
with a unique address.
+-----------+---------------------------+
| SW2 |Drive Select Configuration |
+----+------+------+-----+----+---------+
|Bit |*Mark | 1 | 2 | 3 | 4 |
+----+------+------+-----+----+---------+
| 1 | DS1 | ON | OFF |OFF |OFF |
+----+------+------+-----+----+---------+
| 2 | DS2 | OFF| ON |OFF |OFF |
+----+------+------+-----+----+---------+
| 3 | DS3 | OFF| OFF |ON |OFF |
+----+------+------+-----+----+---------+
| 4 | DS4 | OFF| OFF |OFF |ON |
+----+------+------+-----+----+---------+
*Mark is printed on Printed Circuit Board (PCB).
Radial option
-------------
On leaving the factory, the switch marked "R" of SW2 is set in the
ON position ... lever up and the transfer of control signals to and
from the drive is enabled only when the address of DRIVE SELECT 1, 2,
3, or 4 matches the drive address (daisy-chain operation) defined by
the drive select signal from the controller.
When this switch is in th eOFF position ... lever down, the transfer
of control signals is enabled regardless of the DRIVE SELECT signal
(radial operation).
When the "R" option is used, the "Drive Selected" indicator lamp on
the front of the drive does not light. To make this lamp light, a
DRIVE SELECT signal shall be applied.
J6 DC Power and pin connector assignments
-------------------------------------------
+--------------+
|+-----J3-----+| pin 1 +12 VDC
|| 1 2 3 4 || pin 2 +12 VDC Return
|+------------+| pin 3 + 5 VDC Return
+--------------+ pin 4 + 5 VDC
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I N S T A L L
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MITSUBI. MR533/MR535 PRODUCT SPECIFICATION
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!
When installing the drive in its final location, particular attention
must be paid to the following points.
1. Ventilation, adequate ventilation must be provided to allow any
heat generated to dissipate.
Cooling air is recommended for 6 cfm.
2. Serviceability
3. The drive must be installed so as to put no under strain on the
units frame.
J1/P1 Connector - Control Signals
---------------------------------
Connection to J1 is via a 34 pin PCB edge connector. The pins are
numbered 1 through 34 with the even pins located on the component
side of the circuit board and the odd numbers on the soldered side.
There is a key slot between pins 4 and 6.
Mating Connector 3M ribbon connector P/N 3463-0001 or equivalent
J2/P2 Connector - Data Signals
------------------------------
Connection to J2 is via a 20 pin PCB edge connector. The pins are
numbered 1 through 20 with the even pins located on the component
side of the circuit board. There is key slot between pins 4 and 6.
Mating Connector 3M ribbon connetor P/N 3461-0001 or equivalent
J6/P6 Connector - DC Power
--------------------------
The connector J6 is a DC-power connector. With this drive, a P/N
350211-1 AMP Mate-N-Lock connector (or equivalent) is mounted.
Mating Connector AMP P/N 1-480424-0 (housing)
Utilizing Contacts AMP P/N 61473-1 (pin connector)
Frame Ground Connector
----------------------
The frame ground connection is Faston type one, AMP P/N 61761-2. The
recommended mating connector is AMP P/N 62187-1.
Multiple Unit Connection (Case of 4 Drives)
-------------------------------------------
HOST
+-----------+ +-----------------+
| +---o---Control------------------+J1 Drive 1 |
| | | +-------Data------------+J2 |
| | | | +---------Power---+J6 FG ... |
| | | | | +-----+-----------+
| | | | | +-Frame-GND+
| | | | | | +-----------------+
|Controller | o----+-----+--Control---+----+J1 Drive 2 |
| | | | +---+------------+----+J2 |
| | | | | | +-Power---+----+J6 FG ... |
| | | | | | | | +----+------------+
| | | | | | | o---------+
+-----------+ | | | | | | +-----------------+
+-----------+ o----+-+---+--+-Control-+----+J1 Drive 3 |
| | | | | +-+--+---------+----+J2 |
| +---+----+ | | | | +-Power+----+J6 FG ... |
| +---+-Data-+ | | | | | +-----+-----------+
| | | | | | | o----------+
|Data +---+-Data---+ | | | | +-----------------+
|Separator | +--Control-+--+--+------+----+J1 Drive 4 |
| +-Data---------+--+--+------+----+J2 |
| | | | | +-Pow+er--+J6 FG XXX |
+-----------+ | | | | | +-----+-----------+
| | | | o----------+
DC + -+ | | | |
voltages-+ ----+ | | |
(RADIAL)-+ -------+ | |
+ ---------+ |
Frame GND --------------+
... = Terminator switches OFF
XXX = Terminator switches ON
Shipping Zone
-------------
The drive is designed with a dedicaed parking/shipping zone. When the
power is removed from the drive the heads are automatically parked
and locked in the parking/shipping zone.
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F E A T U R E S
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MITSUBI. MR533/MR535 PRODUCT SPECIFICATION
General Description
-------------------
These highly-reliable fixed disk drives contain 5-25" fixed disks and
have been designed and manufactured to the same external dimensions
as a 5.25" half height mini felxible disk drive. The MR53X series
provides large capacity and high speed, up to 50.55 MB and a seek
time of 28 ms, in a small compact drive. The series employs many
aspects of "Winchester" technology such as the disk, head, shield
enclosure, and a clean air circulation system. To achieve accurate
positioning a servo system controlled by a microprocessor is
utilized.
Key Features
- Half Height 5.25" Winchester disk drive
- MnZn ferrite Monolithic heads using Whitney mounting
- Dedicated servo system
- Voice coil motor
- Low dust level enclosure with air circulation system
- Simple electronics on one printed circuit board with customized
LSI's
- Dedicated head landing/shipping zones are provided for greater data
protection.
Seek Time
---------
+----------------------------------+--------+
|Track-to-Track msec. typ. | 6 |
+----------------------------------+--------+
|Average msec. typ. | 28 |
| msec. max. | 52 |
+----------------------------------+--------+
|Latency msec. avg. | 8.33 |
+----------------------------------+--------+
Write Precompensation
---------------------
When a particular data pattern is written, bit shifting due to the
super-position of the magnetization patterns of adjacent bits can
occur, causing errors. Precompensation is used to prevent this. With
this precompensation, when data is written, the write timing is
switched beforehand to the opposite direction of the data-shift
direction. The duration of the timing for nominal bit position is -
12 ns (early) or +12 ns (late).
In order to provide for a satisfactorily lower error rate for the
drive, the host-system timing for MFM write data may be pre-compen-
sated at all tracks.
Air Filtration
--------------
Elimination rate of better than 99.97% for dust particles of greater
than 0.3 m. Effects of changes in altitude, atmospheric pressure, and
temperature are eliminated by using a breather filter. Maintenance of
the main filter is unnecessary.
Positioning method
------------------
Voice coil motor positioning using a dedicated servo platter.
Media defects
-------------
Less than 10 in a disk surface
Less than 1 in 1 MBytes of the Drive
No defects on Zero cylinder
