Silicon Valley Computer SHUGART 706 Spezifikationen

...•..~..:,.,..'...~~REFERENCEMANUALSHUGART706/712HARDDISKSiliconValleyComputer.'.( 40 8 ) 2 8 8- 8 8 3 7.I

1.3SPEClFlCAnONSSUMMARY1.3.1PaformaaceSpecUicadoD8CapacityUnformattedPerDrivePerSurfacePer TrackFormatted (33 sedon/track)PerDrive: Per SurfacePer Tra

,1·3DC Voltage Requirements: .± 12 Vdc ± 5% .75 A typical (3.9 A max startingfor10sec)(2.7 A max starting with low poweroption)±·5Vdc ± 5% 1.6 A typic

1.-4.2Read/WriteanelControlElectroaleaThe standard~iaoproceS50rand electronics are packagedo~one printed circuitboardcontaining thefoUowingcircuits:a.

ACTUATORSPINDLEASSEMBLYPJWHEADASSEMBLYBANDSTEPPER.MOTORCAPSTAN*FIGURE 1·2.READ/WRITEHEADPOSITIONINGMECHANISM.COVER0.3 MICRONBAROMETRICFILTER0.3 MICRON

1.4.7 Spindle Lock and Brake,These drivesareprovided withanintegralfall·sal.spindlelockandbrake.ThIslOIenoldoperated.mechanicalbrakeis actuated whende

.,.'@-DATATRACKS40mmDISK10TRt<00130mmDISK00HEAD SHIPPING ZONECYLINDER353..· l."u"I,• lJ-.:1:..~-...-...:~.•lFIGURE 1·5. SHIPPING

1.~4ReaclOperaUoUlReadingdata&omthed1skIsaccompUsheclby:a. Deactivating"theWRITEGATEline.rb.Activating the appropriateD~SELECTline.c. Assurin

- J• .J·• .J•.1: -'::~,SECTIONIIELECTRICALINTERFACE2.1INTRODUCTIONThe interface for a706/712hasdrivecontrol signal pin ualgnmentlperIndustry stan

ThesJgna11nterfaceconsists of three categories:a. Control InputUnab.Control OutputUnac.DataTransferUnaADcontrollinesare digitalin natureandeither prov

UNDEFINEDUNDEFINEDWRITEGATEHEADSELECT21UNDEFINED20FT(MAX)(6.0mm)DRIVESELECT. I /DRIVESELECT3./.jDRIVESELECT2DRIVESELECT1DRIVEALWAYS5LECTEDDIRECTION HE

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2.2.1DrIveSelect1-4..DRIVESELECT,when logically true, connects thedriveto thecontrolUna.OnlyoneDRIVESELECTlinemaybeactiveata time.Jumper options051-4a

:--- .:_I- .:...:'.':..'•u.1· u• u•II• u•\t· \-STEP-SEEKCOMPLETE-DRIVESELECT XNOTE: VARIES WITH SeEKL~NGTH.11••mMCMIN,.a.omaec MAX.FIGU

2.3.2ladex2.3.1 Track 00fII~IfIIIIttIIItItttCIttCttCtCINDEXI..200"ueTVPI1~4t------1e~74mMCTYP----~.~.Thedriveprovides this interface signal onceI

-:i-..]...,'-:,--.lt..~--:~--.,--.~--,!-•.-•-•.••I,.-•t.,.J-· .I·.· .,· .2.3.4 Write FaultThissignal.whenactive(logical 0),Isluued to indicAte. c

2.4.2 MFM Read Data2.6GENERALTIMINGREQUIREMENTS~J.50nl.eTVP1+~1~ciE;:.cTYP°1-i~35l'secMAX~--35I'I.cMIN-ii400nleeMAX.jr---.t~solnaecMINto150n

-0'Thedepower to a706/712driveIsvia connectorJl/Pllocated onthesolder side of the PCB. The twodeIvohages and their specifications, alongwiththeJl

• •:..,.••...·-a- . a- II...• IISECTION IIIPHYSICAL INTERFACE3.1INTRODUCTIONTheelecmcallnterface between a706/712driveand the host systemIsvia three c

3.3J5/P5CONNECTIONIConnection toJ6is through a 20·pin PCB edge connector. The pins are numbered 1 through20withtheoddnumbered pins located on thecompo

..,...-).-. ,SECTIONIVPHYSICAL SPECIFICATIONS.4.1MECHANICALDIMENSIONSSeefigure4-1 for the dimensions of the Shugart 700 Mriesdrives.5~•0021131 7 : 0~J

o 4.2 MOUNTINGThe706/712drives are capableofbeing mountedInanyposition.CAunON',These drives must1),emounted wtth four machine screws.Thescrewsmay

TABLE OF CONTENTS (CONT.)2.3.4Wrtte Fault .2.3.5SeekComplete· · · · · · · · · · · · · ·..· . · · · . · · · · · · .2.4Data TransferUnes·..· . · · · · .

• c~,- ,. (• I- I• &• ISECTION VMEDIA DEFECTS AND ERRORS5.1ERROR MAPPINGANDQUALIFICATIONInhigh density digital recording storage systems, it is ne

(J5.1.4Error MapAlldrivesarescanned for hard etTon during themanufACturingprocess.AUhard errors (media defects) are loggedand an error map is attached

• I--.J~••J.'.("...-'-:.'...6.1TRACKfORMATSECTIONVIRECORDING FORMATThepuposeof a format istoorganize adatatrack Into smaller, Mq

physical position "drift" of the index pulse as a functton of drive~emperature.Gap 1 shouldbeatleast22~1es(30bytes recommended)10llgto corre

..•.-• •,J•'.'-J0"t(•oJ\• • J· --.J• e.JSECTION VIICUSTOMERINSTALLABLEOPTIONS• ·.l-• •..I·..• e •7.1FUll-HEIGHTFACEPLATE KITOne of the

7.2 LOW-POWER SLOW START JUMPERIncertainsystemconfigurations It maybedesirabletousea Low-Power Slow Start modeofinitializationof thedrive.Incases when

-...,,-I •-a.'.-II-..I-.- I-.I-.-..-'•_I• •· . I· I· I·..•••·...••I..,..,·.' .·.',··'.'·.'J·-·'-'..••a..

8.2HIGH PRIORITY CRITICAL TASKS (fOREGROUND)Thehigh priority time critical tasks consist ofthefollowing:a.Generatethespindlemotorwaveformandmeasurethe

ERAASTEPINPUTBUFFERINGFUNCTIONINTERRUPTREQUESTEVERY10liMeVECTORSPINDLEMOTORFOREGROUNDFOREGROUNDLOOPCONTROLMOTORFAULTFOREGROUNDOCD1IENTRYOFFE'0003

8.2.6SeekFunctioD ForegrouaclThe seekflagissetfrom the Seek Ramping Calculate Function (background). Uthe seekflagis set, then a stepdelayis provided

TABLE OF CONTENTS (CONT.)8.3.3MicroprocessorControlFault indicator Function · . . . . . . . . . . . . . . ...8-78.3.4 .SeekFunctionlnitiallzZltion· .

·.•,·• JD·..•J·-j·•·...--,I·..--II-..·C--·I-&.-·(r-•I...c:-~Col)..~-[.--I·t I·• It·• U·, U·, .·\ U··U·, .•·.U·.• ' U·-.',~"~,·&apos

0878SYlE... STAATPORT PAE.IMTASPINDLE MOTORIN'Tyel'YESWARMUPSETTLINGEXTNCOUNTDNYESLUBAAUTO ACTUATORRESET TOTRK0AREADRIVEACTUATORSELF·EXERCIS

a.-I·-.e,• L- •1:.':'_Ci8.3.3M~croproc...orCoatrolFaultladlcatorFUDCtI~Thisroutineremovespowerto the spindle motor andRappermotor;th8foregro

8.3.9SyatemBackgroundLoopControlIffive90Jolsecforeground loopshaveoccurred sincethal.5ttimethiSfunetton was entered, then control proceedsto Loss of I

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SECTION IXPACKAGING INSTRUCTIONS9.1 UNCRATINGDuetotheintegral spindle actuatorlock,nospec14llnstrudlonl for unaatingorpackaging are required.The Shuga

FIGURE 9·1. SINGLEUNITPACKAGING CONFIGURATION9-2,t3:ftttttttttt:~ftfff,,,,f~~E~tttC

~.FIGURE 1-2 TEN UNITS PACKAGING CONFIGURATION9·3

9-~9.3PACKING FOR RESHIPPINGd.Theinner container istobesandwiched betweenthefoam inserts.TABLE8-1.PRINTPARAMETERSt(()t(f(tttttfftf()(fff,,,,,t~~E0tE~t

"• • •• , J· -- I.J-1.1• ! ,• : .J• • J- •oJ· -· •.1( )SECTIONXDRIVEINTERCONNECTTheelectricalconnection between the Shugart 706/712 and the contr

FigureTitleLIST OF FIGURESPage)I-IShugart 706/712 Rigid Disk Storage Drive 0••0••••0••0•••••••••••••••0...I-a1-2Read/WriteHeadPositioning Mec

SECTIONXI'SPARE PARTS11.1ROUTINEORDERENTRYShugart Corporation,initscommitment toprovideservicetoItscustomers, has available a dedicated and profe

SECTIONXIIMAINTENANCE12.1 INTRODUCTIONThe Shugart706/712has been designed to require no maintenance under normal operating conditions. This sec·tionwi

fABLE12·2.INSPECTIONOFTHEDRIVE"~. ,'.#0•PR08LEIIIS IN .l\~<'-:.," ...'.'°.'00••,-.t, ,. ,DESCRIPTIONTHEDRIVETHEP

- .@@)@)ooFIGURE12·1.LOCATIONS DIAGRAMo...'6'...~. :..~:\ t;:;;i.,~...~~:~--_...INSERTSHIMHERE~8f.Removeallshims.d.Tightenthe

FIGURE 12·2.REMOVAUREPLACEMENTOFCONTROL PCBc.Remove thePCB.~~()iIEEEEEE~~I~E12·4PlugInthethreecircuitcables.Besure the cllble.arefuUyInserted Into pos

e.d.-:-":=-•- .- .- .- .- .••I•• •• ••· .·..-. .· I• f •· , ,·, ,., ,.,t., ,••I. -• I ,• r ,• I J4 I •(t(tLowerthe ControlPCBcarefuUyontothe..and

- J.-)J:.8-):--'- J.~-:..~-.~.1-.-..JSECTION XIIIILLUSTRATEDPARTSCATALOG13.1. DESCRIPTIONThe Illustrated Parts Catalog (lPC)ls arranged10thlt the

»tQ2-,.I II I II ...~__'...-~,..",a~::tIfIiI'/I~I II13·2FIGURE 13-1. SHUGART7061712ASSEMBLYTf..---2I

3~02·1913·3FIGURE 13·2. FRONT PANEL ANDRAilASSEMBLYREFERENCEPARTDESCRIPnONQUANTITYNUMBERNUMIER2-111306-0 SHOCK MOUNT..281282·1 RAIL. RIGHTsloe138128&a

()·lS.4RECOMMENDED SPARE PARTSSTOCKINGGUIDEThe spare parts stocking guideisbrokendownInto three level'.The..levelsare: SiteorF~eldSuppon Engineer

vii2-1HeadSelect(1=False. 0=True) · · · · · · · · . · . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-52-2DCRequirements · · ·.

,~..~..!.~ifi-I~••...:i~•II:'s:1SECTION XIV•ISSCHEMATIC DIAGRAMS.~III~..I!:~EJ~The following schematic diagrams arefurnishedto.'dInmalfundlo

~I,~;g·~ili9!t-I!e--IIFJI~II!!iJlii,-!Ii Ioo~S!.s~11='-a...v •••"I-I..~::i i 9;!:I·;i -I- Ii-·!! !I: Ialii!III§a!~iiI:;;&9:1,'I. i-

ABBREVIATIONS/MNEMONICSBKPCBackground Port CMFMModifiedFMbpiBits per InchMLCMachineLanguageCodeeReCyclicRedundancyCheckPCBPrinted Circuit Bo.ard0Promp

-'"- 3}:.~=I~:·3:I~::;~-~3..~.-:3:3..3~j...~.,:!--.~~:.'..:.~~: J- --~,--:,-,~,tSECTION IINTRODUCTION1.1 PURPOSEThis publication isdes

1.3 SPECIFICATIONS SUMMARY1.3.1PerformanceSpeclflcatlonaCapacityUnformattedPer DrivePerSurfacePer TrackFormatted(33 sectors/track)Per DrivePerSurfaceP