O D - 5 4 0 OKIDATA NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 5.25"/HH Cylinders 640| | | Capacity form/unform 33/ 40 MB Heads 6| | | Seek time / track 85.0/16.0 ms Sector/track 17| | | Controller MFM / ST412 Precompensation 651 Cache/Buffer KB Landing Zone 656 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 10 50 | -40 70 Power: sleep W Humidity % 10 85 | 5 90 standby W Altitude km -0.305 3.048| -0.305 12.192 idle W Shock g 10 | 40 seek 14.8 W Rotation RPM 3600 read/write W Acoustic dBA 50 spin-up W ECC Bit MTBF h 20000 Warranty Month 12 Lift/Lock/Park NO Certificates ********************************************************************** L A Y O U T ********************************************************************** OKIDATA OD526/OD540-R HARD DISK DRIVE INSTALLATION MANUAL +---------------------------------------------------------+ | |XX J3 | PCB Component Side |XX Power | | | 34XX C | J8 Terminator+ |XX O | 4321 +-+ || |XX N J1 | +----++++------+ Address| | || |XX T | |Micro Process.| Switch 1-+ || |XX R | +--------------+ ++ |XX O | |XX L | | | 20XX | |XX D | |XX A J2 | |XX T | |XX A | |XX +---------------------------------------------------------+* J4 GND ********************************************************************** J U M P E R S ********************************************************************** OKIDATA OD526/OD540-R HARD DISK DRIVE INSTALLATION MANUAL Jumper Setting ============== Address Switch Drive ID ======================== +-----+-----------------------+ |Drive| Switch Configuration | |ID |SW1|SW2|SW3|SW4|SW5|SW6| +-----+---+---+---+---+---+---+ | 0 |ON |OFF|OFF|OFF|OFF|OFF| +-----+---+---+---+---+---+---+ | 1 |OFF|ON |OFF|OFF|OFF|OFF| +-----+---+---+---+---+---+---+ | 2 |OFF|OFF|ON |OFF|OFF|OFF| +-----+---+---+---+---+---+---+ | 3 |OFF|OFF|OFF|ON |OFF|OFF| +-----+---+---+---+---+---+---+ OKIDATA disk drives are shipped with a switch that allows a unit to respond to a request for drive 0 through 3. If the drive you are installing is the only hard disk, then DIP switch 1 should be turned "ON". Switches 2, 3, and 4, should be turned "OFF". (For PC AT type systems, DIP SW2 should be on; the remaining switches should be OFF.) The DIP switch pack is located on the printed circuit board near the larger cable connector at the rear of the unit. The white numbers on the switch pack correspond to the drive ID as below. Note: SW5 (switch 5, if it is present on your drive) controls read data gating. It is only used with special controller boards that allow daisy chaining of the data cable (J2). In normal installations (IBM PC and compatibles) SW5 remains in the OFF position. SW6 is not used, and should always remain in the OFF position. J8 Test Jumpers --------------- Test Jumpers ********************************************************************** I N S T A L L ********************************************************************** OKIDATA OD526/OD540-R HARD DISK DRIVE INSTALLATION MANUAL 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! OKIDATA hard disk drives can be mounted in any of three positions. Cabling ------- Pin 1 of both edge connectors is furthest away from the power supply connector. Although these connectors have key slots nearest to pin 1, most cable connectors do not, and can be installed in the wrong manner, resulting in improper operation. Be certain to check the orientation of the edge connectors to determine which is pin 1. Hookup Chart ------------ +---------------+ +---------------+ |Hard +-Control---o---+J1 | |Disk | +--Data-+---+J2 | |Controller | | +--+---+J3 | |Card | | | | +-+-------------+ | | | | ++-----+J4 | | | | || | | | | || | | | | || | | | | || +---------------+ | +---+ | |+---+ J1 xxxxxx |(Terminator, last | +---Data-+-+----+ J2 Terminator|drive on controller | | o-+----+ J3 |cable) | | | | +-+-------------+ | | | o------+J4 | | | | +---------------+ | | DC voltages+ | Frame Ground-+ Termination ----------- Each OKIDATA drive has a cable termination resistor pack located between the larger cable connector (J1) and the dip switch pack. The terminator is a long, black plastic, ten-pin resistor pack pack. It is removable. Only the last drive in a cintrol cable string should have the terminator installed. Most PC applications require 1 drive; therefore, the terminator should be installed. Installation ------------ When installing a disk drive into a PC-Type cabinet, be careful not to allow the components on the circuit board to come in contact with the cabinet frame. This can easily damage the drive's components or the drive controller circuit board, or cause electrical shorts. Be certain that the disk drive is fully supported in the cabinet so that the drive cannot move once it is placed in its installed position. Many IBM PC style cabinets have predrilled holes that enable hard disk drives to be secured to the PC cabinet very easily. We recommended that hard disk drives be secured to the base of PC cabinets. The screws used to mount the drive should not penetrate the drive frame by more than 0.15 inches. The size and type screws used are typically #6-32 X 1/4" machine screws. The IBM PC AT and the Compaq Desk-Pro use slide rails to mount disk drives in their cabinents. The AT and Desk-Pro rails are not inter- changeable. The rails are secured to both sides of each drive and the entire unit is then slid into the cabinet. Drives used in the desk- pro are secured with a screw. Drives used in the PC AT are secured with a screw and a clip. ********************************************************************** F E A T U R E S ********************************************************************** OKIDATA OD526/OD540-R HARD DISK DRIVE INSTALLATION MANUAL Failures -------- OKIDATA disk drives feature extensive power-up self tests to detect any potential operational problems. As a unit powers up, the front light flashes at a constant rate, Whne the self-test is complete the front light will either turn OFF or stay ON depending on the system to which it is connected. If, however, the drive light continues to flash 30 seconds after power on, the drive has determined a failure condition. The number of flashes between pauses signifies the ERROR CODE (EC) detected. These self test monitor input power (EC 1), recalibrate the drive, seek, read servo data from each head at different cylinders, and optimize the unit for temperature variations. Many of the test per- formed are continued during normal operation to track changing temperature conditions. The following list briefly describes the error codes and their meaning. The number before each error represents the number of flashes associated with the corresponding error: ERROR CODES 1. Power Fault 2. No Spindle Spin 3. No Zones Detected 4. No Track Zero Detected 5. Incorrect Track Zero Phase 6. Missed Servo Address Mark 7. No Physical Index Detected 8. Defective Read/Write Head 9. Defective Read/Write Channel 10. No Servo Micro-Step Convergence 11. Micro-code Checksum Failure At power-up, a 1701 display on your screen indicates that the hard disk isn't available. It continues to display until low-level format is complete. 1. Recheck the Drive/Controller Cabling 2. Recheck controller shorting plugs and/or switch plugs 3. Recheck the Drive ID Jumper Block 4. An error code (Flashing light) on the drive after power-up will also cause a not ready condition. Disk drives shipped by manufacturers such as OKIDATA are tested on special equipment to assure performace and to map any media defects. The disk error location sticker on the cover of the hard disk drive shows the results of media testing. Media defects are normal and expected in any disk drive. Up to 1 defects per megabyte of un- formatted storage is acceptable and does not affect the quality of the drive. OKIDATA supplies 10 additional cylinders, numbered 640 to 649, to support alternate track assignment. System Integration ------------------ In order to use a newly installed HARD DISK/CONTROLLER combination, you must run three utility programs. 1. PRE-FORMAT 2. FDISK 3. FORMAT The IBM supplied XT Hard Disk controller will not support an OKIDATA disk drive.