Page 1: ...RK05 disk drive user s manual 1 L digital equipment corporation maynard massachusetts J...
Page 2: ...RK05 disk drive user s manual EK RKOS OP OOI digital equipment corporation maynard massachusetts...
Page 3: ...tice Digital Equipment Corporation assumes no respon sibility for any errors which may appear in this manual Printed in U s A The following are trademarks of Digital Equipment Corporation Maynard Mass...
Page 4: ...NSPECTION MECHANICAL INSTALLATION AND CHECKOUT CARTRIDGE HANDLING PRACTICES AND PRECAUTIONS CARTRIDGE PACKING AND SHIPPING NORMAL OPERATING PROCEDURES Cartridge Loading Cartridge Unloading INTERFACE G...
Page 5: ...d Indicators Spindle and Drive System Linear Positioner Cartridge Handling System Air System Head Loading Relationship of Disk Head Disk and Contaminants Shipping Bracket and Shipping Strap Location R...
Page 6: ...and maintenance which are beyond DEC s direct control DEC disclaims responsibility for performance of the Equipment when operated with media not meeting DEC specifications or with media not maintained...
Page 7: ...ght Specification Single disk magnetic cartridge 14 in Two 2200 bpi max 406 200 plus 3 spares on each side of the disk 203 two tracks each 4872 12 per revolution 6496 16 per revolution 25 million 2040...
Page 8: ...NDERNEATH UNIT SPINDLE CARTRIDGE AIR DUCT SPINDLE CONE SECTOR TRANSDUCER POWER FAIL HEAD RETRACTING BATTERIES LINEAR POSITIONER CARTRIDGE SUPPORT POSTS LOGIC ASSEMBLY Figure 1 1 Location of Major Asse...
Page 9: ...ntacts the rear of the top cover opening the access door to allow entry of the read write heads 14 As the drive front door is closed the cartridge is lowered to the operating position and the magnetic...
Page 10: ...in erroneous data being recorded Placing this momentary contact switch in the WT PROT posistion lights the WT PROT indicator and prevents a write operation it also turns off the FAULT indicator if tha...
Page 11: ...ence Lights when a the WT PROT switch is pressed b the operating system sends a Write Protect command Goes off when the WT PROT switch is pressed a second time or when the drive is recycled through a...
Page 12: ...and Drive System TRACK POSITION SCALE LINEAR TRANSDUCER HEAD ADJUSTMENT LOWER HEAD UNDER CARRIAGE SCREWS CLAMP SCREW MOTOR HOUSING ARMATURE CARRIAGE CARRIAGE SLIDE PERMANENT MAGNET INSIDE Figure 1 4...
Page 13: ...MOTOR LIFTI NG DRIVE FRONT DOOR DOOR OPENER AIR DUCT a Cartridge Removed CARTRIDGE b Cartridge Inserted CARTRIDGE ACCESS DOOR Figure 1 5 Cartridge Handling System 1 8 6858...
Page 14: ...CARTRIDGE AIR DUCT ABSOLUTE FILTER Figure 1 6 Air System Figure 1 7 Head Loading 1 9 PREFILTER CP 0272...
Page 15: ...cartridge The recording device read write head is a coil wound ferrite core with an air gap As current flows thwugh the 1 10 coil the induced flux magnetizes the surface of the disk passing under the...
Page 16: ...the baseplate Figure 2 la CAUTION Do not operate drive with shipping brackets attached 2 1 7 8 9 10 CHAPTER 2 INSTALLATION If RKOS drives are daisy chained with RK03 drives in a multidrive installatio...
Page 17: ...SHIPPING STRAP SHIPPING BRACKET SHIPPING BRACKETS a Shipping Brackets MOUNTING SCREW P2 b Shipping Strap LINEAR POSITIONER BRACKET SCREW Figure 2 1 Shipping Bracket and Shipping Strap Locations 2 2...
Page 18: ...ve unless the weight of the rack is sufficient to prevent tipping when the drive is fully extended 2 Pull the chassis slides out until they lock in the extended position 2 3 3 Slide the drive onto the...
Page 19: ...is not possible connect all RKOSs that are separated on the bus by RK03s by means of separate cables between their J06 connections Figure 2 2 9 If the drive is to be connected to other than an RK ll C...
Page 20: ...A SINGLE FOLD B DOUBLE FOLD i __ B_b A Figure 2 4 RK8 E Interface Cable Installation 2 5 B A...
Page 21: ...ble allow them to stabilize before new data is recorded on them Data interchangeability between drives is only guaranteed if the temperature difference does not exceed 30 F 17 C even though a specific...
Page 22: ...left ON however all RUN LOAD switches should be set to LOAD before system power is removed 2 5 1 Cartridge Loading The procedure for cartridge loading is as follows 1 Set the RUN LOAD switch on all dr...
Page 23: ...l only four drives on a single bus while a logical I indicates that the controller is an RKII D 3 1 CHAPTER 3 INTERFACE 3 2 2 Select 4Iines BUS SEL DR 0 A E 1 B F 2 C H and 3 D J L operate in conjunct...
Page 24: ...7 F2 BUS WT GATE L B 07 L2 BUS RESTORE L A 07 MI BUS RD GATE L B 07 R1 CONTROLLER BUS FILE READY L B 08 NI BUS R W S ROY L A 08 H2 BUS ADDRESS ACCEPTED L A 08 R2 BUS ADDRESS INVALID L A 08 T2 BUS SEEK...
Page 25: ...ve Ready BUS FILE RDY L transmits a logical I to indicate the following conditions a Drive operating power is correct b A disk cartridge is properly loaded 3 3 c The drive front door is closed d RUN L...
Page 26: ...after the last sector pulse and is generated each time the index slot unique slot is detected by the sector transducer 3 3 13 AC Low BUS AC LO L transmits a logical 1 when there is a loss for more th...
Page 27: ...D random cylinder seek 5 Drive Selector selects the drive number selected on the M7700 module in the RKOS 6 RUN enables all move functions 7 RTZ forces a zero recalibrate 8 FOR REV selects the initial...
Page 28: ...attem to be written on the sector selected After the RKOS T has been used to perform write or erase operations the disk will have to be reformatted A 3 CONNECTING THE RKOS T OFF LINE TESTER 1 Disconne...
Page 29: ...well organized well written etc Is it easy to use What features are most useful What faults do you find with the manual Does this manual satisfy the need you think it was intended to satisfy Does it s...
Page 30: ...taple BUSINESS REPLY MAIL NO POSTAGE STAMP NECESSARY IF MAILED IN THE UNITED STATES Postage will be paid by Digital Equipment Corporation Technical Documentation Department Maynard Massachusetts 01754...
Page 31: ...r M32 9BH Telephone 061 865 7011 Telex 668686 printed in U S A UNITED KINGDOM conI READING Fountain House Butts Centre Reading RGI 70N EnQland Telephone 0734 583555 Telex 8483278 NETHERLANDS D igi tal...
