Control Data BM1A5 User Manual Download

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Summary of Contents for BM1A5

Page 1: ...t I i K t CONTROL DATJ MULTIPLE DISK DRIVE CONTROL DATA BM1A5 GENERAL DESCRIPTION OPERATION INSTALLATION CHECKOUT MAINTENANCE CUSTOMER ENGINEERING MANUAL...

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Page 3: ...CONTROL DAT MULTIPLE DISK DRIVE CONTROL DATA ORPORAT10N BM1A5 GENERAL DESCRIPTION OPERATION INSTALLATION CHECKOUT MAINTENANCE CUSTOMER ENGINEERING MANUAL...

Page 4: ...Orders PE11204 PE11294 PE21058 affecting pages vi 6 25 1 thru 6 25 3 6 34 6 76 6 77 6 78 Technical and editorial changes affecting pages 2 10 2 11 2 12 3 1 3 3 3 15 3 16 6 1 6 2 6 4 thru 6 7 6 16 6 1...

Page 5: ...the CONTROL DATA8 BM1A5 Multiple Disk Drive is in three manuals Publication No 70602400 General Description Operation Installation and Checkout Maintenance Publication No 70602500 Theory of Operation...

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Page 7: ...ace Allocation 3 2 Leveling and Aligning 3 2 Lubricate Carriage Roller 6 13 ways Cabling and Connections Lubricate Head Load Latch 6 14 Cabinet Intracabling 3 3 Replace Abs olute Filter 6 15 Input Out...

Page 8: ...eplacement 6 31 Check and Adjustment 6 55 Detent Actuator Transducer or Preamp Check 6 32 lifier Card Removal and Replacement 6 58 Actuator Assembly Removal 6 32 Actuator Assembly Re Sector Sensor Ass...

Page 9: ...5 Trim and Dust Shield Mount Alignment 6 51 Installation 3 11 6 20 Cylinder Transducer 3 6 Side Panel Installation and Trace 6 57 Adjustment 3 12 6 21 Sector Sensor 6 60 6 1 Pack Cleaning Brushes 6 9...

Page 10: ...2 1 MDD Panels and Indica tors 2 2 Controls and Indicators viii TABLES 2 1 2 3 3 1 Input Output Connector Pin Assignments 3 8 6 1 Read Write Head Replace ment Data 6 72 70602400 D...

Page 11: ...SECTION 1 GENERAL DESCRIPTION...

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Page 13: ...referred to as a two by 2X Each deck consists of a deck assembly supporting logic and power components and frame mounted accessory equipment The deck assembly contains the hydraulic access mechanism...

Page 14: ...controls for the deck s a blower assembly and facilities for input power distribution Each cabinet contains a circuit breaker that controls the application of input power to the power supply of that c...

Page 15: ...eable Recording Surfaces Disk Pack Disk Surface Diameter Recording Diameters Disk Surface Coating Disk Pack Velocity READ WRITE HEADS Heads Deck Heads MDD Read Write Track Width Erase Track Width T ra...

Page 16: ...UT OUTPUT CONNECTIONS 1 4 67 inches 170 18 cm 32 inches 81 28 cm 40 inches 101 6 cm 1100 pounds 498 96 kg 380 volt 10 50 0 6 1 2 hertz 3 phase 4 wire wye 4 amps phase 1 7 amps phase Three connectors p...

Page 17: ...SECTION 2 OPERATION...

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Page 19: ...a typical cabinet of the MDD Table 2 1 provides panel and in dicator complements in terms of the 2X cabinet and the MDD A functional description of the controls and indicators is given in Table 2 2 TA...

Page 20: ...N LINE 5 ERROR O Q OFFLINE UPPER DECK 2 N 20V 6v 40V GND O E aAf 0 OFF LINE LOWER DECK 20 20 mill LOCAL REMOTE 20Y 20Y O 3AMP SA 4A UPPER DECK f7 0LTA8E lit td R W E OI I CYL UItRUIT if J JRoW EI OFfC...

Page 21: ...upply LOCAL REMOTE switch is set to REMOTE or from power supply if power supply LOCAL REMOTE is set to LOCAL Lights when switch is on even if one or more of the above conditions is not met This allows...

Page 22: ...Numbe r 0 thru J is limited to indicating physical location of a spindle within the MDD Lights when related module is not on line as a result of one of the following condi tions 1 LOCAL REMOTE switch...

Page 23: ...ted without an On Cylinder signal 8 Low voltage condition sensed Pressing the DEFAUT switch clears ttle Fault F F on the logic chassis and ex tinguishes the indicator Lights when related deck is selec...

Page 24: ...D test jacks ON LINE OFF LINE switch 2 6 Afford a point at which dc voltages in the logic chassis can be measured ON LINE position places unit under control of control unit Setting switch to OFF LINE...

Page 25: ...light briefly between each position of the switch Clears FA ULT FF and all bits of the Error register when pressed Controls application of three phase 208 vac to blower motor Disables dc power when s...

Page 26: ...and indicators are duplicated on the power supply panel one set each for the upper and lower units SPINDLE circuit breaker SPINDLE elapsed time meter 40 Circuit Breaker 6 circuit breaker 40 indicator...

Page 27: ...s out position After dc power is switched normal operation may be continued on re maining deck DC OFF switch START switch and indicator Deck Assembly Track Number Indicator 70602400 D Set to the DC po...

Page 28: ...ence the related PRET indicator will light 4 When the required PRET indicators are lighted the MDD is on line NOTE Maximum operational stability is achieved only after the unit has reached thermal sta...

Page 29: ...E as applicable circuit breaker to ON 40 as applicable circuit breaker to ON 6 as applicable circuit breaker to ON DC OFF as applicable switch to DC START as applicable switch to toggle down 8 Set the...

Page 30: ...er than 4 hours It is recommended that this warmup period be allowed prior to a Read or Write operation 14 The First Seek operation is complete when the heads are returned to track 00 The unit is now...

Page 31: ...0 0 LOCK __ A CAM ARM BLOCK IN THIS POSITION DISABLES SPDL LOCK AND CLOSES SECTOR SW B CAM ARM BLOCK IN THIS POSITION ENABLES SPDL LOCK AND PLACES SECTOR SW UNDER CONTROL OF SENSOR PO I 5813 Figure 2...

Page 32: ...ures the read write heads are sometimes manually positioned Make certain that the heads are fully retracted 4 Place the disk pack onto the spindle CAUTION Air blowing into the shroud area could lift a...

Page 33: ...read write heads are sometimes manually positioned Make certain that the heads are fully retracted 4 Place the plastic canister over the mounted disk pack so that the post pro truding from the center...

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Page 35: ...SECTION 3 INSTALLATION AND CHECKOUT...

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Page 37: ...container 3 Remove corrugated paper caps from front and rear of cabinet 4 Remove corrugated paper panels covering top and sides of unit 5 Raise plastic dust cover clear of cabinet 6 Applicable to air...

Page 38: ...iage paragraph Section 6 19 Remove nylon cord and CAUTION tag from carriage 20 Close deck drawer 21 Repeat steps 16 through 20 for lower deck SPACE ALLOCATION One MDD 2X cabinet requtres a floor area...

Page 39: ...cabinet panels must be re moved Make certain that the panels are returned to the same cabinet Misalignment and or binding could result from switching panels 8 Refer to Figure 3 1 and secure each cabin...

Page 40: ...ler The ground bond is connected to any unused terminal on terminal board TB05 located on the power supply side panel and the controller system ground The ground bonding scheme may be daisy chained or...

Page 41: ...WASHER I IN SCREW 70602400 D FLAT WASHER FRONT __ FRAME MEMBER S OF ADJACENT CABINETS I SECOND SET OF HOLES FROM BOTTOM Figure 3 1 JOining Cabinets REAR FRAME MEMBERS OF ADJACENT CABINETS 5B26 3 4 1 3...

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Page 43: ...WI03 W3 J200 A3 LOGIC CHASSIS J201 MAINTENANCE WI2 J202 PANEL INPUTlOUT PUT J200 A4 LOG I C CHASSIS J201 MAINTENANCE J202 PANEL j A4 LOWER DECK Figure 3 2 Cabinet Intracabling Diagram 70602400 D 3 5...

Page 44: ...3 6 UNIT NOS 6AND7 2X CONTROL UNIT UNITNOS 4 AND 5 2X CABLE B X l200 1 12021 1201 UNIT NOS 2AND3 2X Figure 3 3 System Intercabling LINE TERMINATOR 12001 1101 1101 UNIT NOS o ANDI 2X 5860 70602400 D...

Page 45: ...USE SHORT A CABLE BE TWEEN CABINETS USE SHORT A CABLE NOT APPLICABLE TO LAST CABINET TERMINATORS ARE INSTALLED oSELECT B CABLES ACCORDING TO DISTANCE OF CABINET FROM CONTROL UNIT o A CABLE TO CONTROL...

Page 46: ...linder Select P Spare 22 25 Head Select R Termination Power Ground 23 26 Difference Select S Spare 24 27 Control Select T Sequence Lines Shield 28 31 Read Cylinder Select U Sequenc e Line 29 32 Spare...

Page 47: ...ABLE B J202 PINS FUNCTION PINS FUNCTION 66 71 Spare 67 72 Clear 73 76 Spare 74 77 Spare 75 78 Spare 79 Spare 80 Termination Power Ground 82 Spare c Provides a return path for terminators and does not...

Page 48: ...with five equally spaced moulding clips Locate top end of side trim as shown Secure side trim to frame using five moulding clips spaced as in step h 4 Remove all top panels Position dust shield over t...

Page 49: ...compressed at all points Tighten screws in bracket stud assemblies f Inspect gap in which seal strip is compressed around perimeter of side panel Seal strip must be compressed at all points and gap m...

Page 50: ...urce capable of supplying 380 volt 10 50 Hz 1 2 3 phase four wire wye The maximum current consumption with this input voltage is as follows Operating current disk packs turning steady state SIDE TRIM...

Page 51: ...0 F 5 to 95 relative humidity providing there is no condensation INITIAL CHECKOUT AND STARTUP PROCEDURE This procedure should be used to make the first power application to the MDD The procedure assu...

Page 52: ...ually 7 Unlatch head load cam see Manually Positioning Carriage Section 6 and extend read write heads into shroud area 8 Inspect and clean read write heads see Preventive Maintenance Index Section 6 9...

Page 53: ...witch to DC START as applicable switch to toggle down 21 Set Filter box panel UNIT POWER circuit breaker to ON Power supply MAIN BREAKER and 20Y indicators light Logic chassis and power supply fans be...

Page 54: ...chieved operational speed power supply 40 and 40Y indicators light and actuator moves to hydraulic home position At this point sequence power is passed to next deck if any to be powered up NOTE Furthe...

Page 55: ...CAUTION Unit Numbe r indicator goes out immediately if UNIT POWER circuit breaker is set to OFF 39 Allow Unit Number indicator to go out before opening deck drawer 70602400 D 3 17...

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Page 57: ...Information for theme sections is included in BM1A5 Mu tiple Disk Drive Pub No 70602500 SECTION 4 THEORY OF OPERATION SECTION 5...

Page 58: ...I 1...

Page 59: ...te Erase Each of these functions is further described by flow charts and timing diagrams in Section 5 of this manual The above functions are performed by each deck of the MDD Normal operation is such...

Page 60: ...he function occurs when the controller makes sequence power available to the power supply for the deck Sequence power causes the power supply relay KOI KIDl for lower deck to energize and the power su...

Page 61: ...AGREE WITH LOGIC PLUG WITH LOGIC PLUG I N LOWER DECK IN UPPER DECK Yt5 LOWER DECK SENDS UNIT SELECTED TO CONTROLLER GATE liD RECE I VERS TO LOWER DECK GATE LOWER DECK TO 1 0 TRANSMITTERS Figure 4 2 S...

Page 62: ...t 3 Bit 4 Bit 5 Bit 6 Bit 7 4 4 Read Cylinder Select Difference Select or Cylinder Select 1 2 4 8 16 32 64 128 Head Select Control Select 1 Write Gate A 1 input on this line enables the write drivers...

Page 63: ...inder request and the selected deck s present cylinder location A 1 input on this line indicates that the addres s and control lines contain the control unit s current cylinder request A 1 input on th...

Page 64: ...line enables an unrestricted reset of the unit select condition A 1 input on this line clears the Reserve and Compare Enable flip flops in the selected unit Carries information to be written from the...

Page 65: ...e selected deck to the control unit This mark occurs once for each revolution of the disk pack A 1 output indicates that the selected deck has one or more fault conditions Write and erase currents are...

Page 66: ...aded 2 Related Logic Chassis Maintenance panel ON LINE OFF LINE switch set to ON LINE Indicates that the unit has completed Seek Complete or is unable to complete Seek Error the previously addressed s...

Page 67: ...INE 7 I LIN T COUNnll DlI CYL INDEX 11K _ _ _ DETENT DITECTION cYLINDEII 0011 IIEG IZI LJ 1r II R UN IL1 S L __ jjLL SEL IC NO CDIIMII J UiWiii I no INEO I2I I LIN S CYL NOEII I AOOII IIEG I LIN T III...

Page 68: ...e The track pulse sets the Detent FF and releases the detent pawl The output of the detent transducer is now observed and 5 ms after the pawl engages the detent gear the deck sends an On Cylinder sign...

Page 69: ...ck pulse The trailing edge of each of these pulses decreases the content of the decrement counter by one Motion velocity is controlled according to the content of the decrement counter and since this...

Page 70: ...ears decrement counter Clears Cylinder Address register Clears Forward Latch Initiates a 300 ms delay circuit Establishes a tracks to go greater than 26 signal T 26 With the Forward Latch cleared and...

Page 71: ...Seek Error and On Cylinder lines If a Seek Error exists a RTZS pulse will clear it If an On Cylinder exists the controller responds with a Control Select tag that gates the Read Gate signal bit 1 of...

Page 72: ...assembly The front panel is hinged so that access can be gained to adjust or perform maintenance The assembly is cooled by fans located on the top surface of the chassis AD DC Distribution Figure 4 4...

Page 73: ...ULL WAVE MCTIFIEII FILTER 100STING XFMII AND LC TYPE E FULL WAVE FILTER RECTifiER KI02 FULL WAVE IlliDGE C TY E K05 L IIECTIFIER ILTEII LV kl05 Figure 4 4 Power Supply AC DC Distribution IA TO UPPER D...

Page 74: ...event damage to read write heads and or disk packs A normal on line power on sequence begins when switch S501 on the operator panel is pressed actuating power supply panel START switch will also start...

Page 75: ...ACE KOI DC L _ _ _ _ _ _ _ _ _ _ _ 1 SPEED SPINDLE SPEED STATUS FROM LOGIC CHASSI S GRD SPEED NOTES CD AUXI LlARY SWITCH CONTACTS ON RELATED CI RCUIT BREAK ER SHOWN IN OFF POSITION DRIVE MOTOR K05 I B...

Page 76: ...owing a The 40 voltage is distributed to the read write logic on the upper deck Figure 4 4 b The 40Y voltage is distributed to the solenoids on the upper deck Figure 4 4 c One of the grounds to K04 is...

Page 77: ...ted stop at 2 ips see Hydraulic Operations Section 4 of this manual c K05 contacts also provide a path to ground for relay K04 in preparation for next power on sequence d The application of the 20 20...

Page 78: ...tabulation of the wiring connections in the chassis The maintenance panel contains a set of test point jacks switches and an indicator for each deck in the cabinet These components function primarily...

Page 79: ...ly with the cone shaped opening in the center of the disk pack Starting in the spindle cone and running through the center of the spindle assembly is the vertically free floating lockshaft The upper e...

Page 80: ...DRIVE MOTOR PULLEY DRIVE MOTOR 4 22 IDLER PULLEY TRACK CYL NO C CATOft HEADS EXTENDED SWITCHES PUMP DRIVE PULLEY o i 5C80 Figure 4 6 Deck Assembly DISK PACK CANNISTER SPINDLE PACK ON SWITCH 70602500 A...

Page 81: ...in response to the vertical movement of the lockshaft When the shaft is up disk pack mounted the contacts are closed When a pack is not installed the shaft moves downward to deflect the switch actuato...

Page 82: ...n bearing surfaces that interface with the various bearings and rollers of the carriage mount Each rail has a rack gear that meshes with a pinion gear on the detent gear shaft m ounted vertically in c...

Page 83: ...following paragraph Head Loading DRAULIC r CTUATOR ASSEMBLY Figure 4 8 Carriage Carriage Mount seel The read write heads must be loaded to the disk surfaces before exchanging data with the controller...

Page 84: ...ead loading is a part of the First Seek function As power to the deck is sequenced up the drive motor starts This causes disk pack rotation hydraulic pump operation and a brush cycle approximately 60...

Page 85: ...At MECHANISM TORSION ROD C HEAD 70602500 A Figure 4 9 OS UNLOADED B HEA Mechanism Head LoadIng C83 4 27...

Page 86: ...retracted stop If the linkage malfunctions and fails to unload the heads the upper roller assembly Figure 4 8 contacts the knock off pin Figure 4 9 part D This contact forces the knock off pin downwar...

Page 87: ...air cushion Vertical motion by a disk surface due to warpage or imperfection is countered by a move in the opposite direction by the gimballed head and or the floating arm As a result flight height r...

Page 88: ...only adjustment required of this assembly amounts to repositioning the transducer relative to the slotted metal plate Detent Transducer The detent transducer senses the location of the slot in the de...

Page 89: ...ansducer from the secondaries As the disk rotates the notches allow varying levels of coupling between the primary and the secondaries Figure 4 14 shows rotational positions of the track position disk...

Page 90: ...ary B allowing maximum coupling and raising output B to the maximum Since secondary A is now covered by a land output A is a minimum Disk rotation continues until both secondaries are centered on a no...

Page 91: ...ny foreign materials The sweep cycle occurs just before the read write heads are loaded during the First Seek sequence The assembly consists of a motor 10 comb mounted brushes a reset switch motor to...

Page 92: ...gure 4 16 consists of a piston and sump block in or on which are mounted a valve block two hydraulic fluid filters an extend piston a drive piston and five solenoid and valve combinations Valve Block...

Page 93: ...oned stop for the drive piston and also estab lishes the hydraulic home position for the carriage When deck power is removedJ the extend solenoid de energizesJ the spring loaded valve opensJ and the p...

Page 94: ...f the detent gear When the detent solenoid is energized the related valve opens to vent pressure to the sump and the detent pawl spring pulls the pawl into the gear Three solenoids and valves direct t...

Page 95: ...hen the extend piston moves to the extend position The actuator moves to hydraulic home at the beginning of each First Seek operation It is the starting point for the forward motion required to load a...

Page 96: ...LVE Figure 4 17 Hydraulic Actuator Hydraulic Home Detent Figure 4 18 5C72 The detent phase occurs at the end of each seek operation The operation consists of removing pressure to the detent actuator s...

Page 97: ...em pressure to sump via forward reverse solenoid valve This causes system pressure to drop to 50 psi and thereby prevents excessive heating of hydraulic fluid 4 Slow solenoid remains energized Forward...

Page 98: ...VALVE 3 PSI Figure 4 18 Hydraulic Actuator Detent SUMP For a seek of three tracks or less both the slow and intermediate solenoids would energize immediately The seek would consist of a forward slow...

Page 99: ...ents pressure to sump Resulting pressure drop causes upward movement of spring loaded forward reverse spool NOTE Pressures at left and right faces of drive piston are equal Drive piston moves to left...

Page 100: ...ol From here it passes through hole in extend piston causing the drive piston to move left at 7 ips Forward Slow Mode Figure 4 21 The sequence of events for this mode is as follows 1 With extend solen...

Page 101: ...switching to forward motion and then detenting or by the drive piston encountering the hydraulic cushion on the front face of the extend piston Reverse Fast Mode Figure 4 22 The sequence of events for...

Page 102: ...ston moves right at 26 ips Reverse Intermediate Mode Figure 4 23 The sequence of events for this mode is as follows 1 With extend solenoid energized and detent solenoid de energized forward reverse so...

Page 103: ...hs rejoin to pass around the intermediate spool and vent to sump at forward reverse spool 4 Hydraulic fluid flows through minimum pressure orifice to left face of drive piston and piston moves right a...

Page 104: ...se Slow Mode Figure 4 24 The sequence of events for this mode is as follows 1 With extend solenoid energized and detent solenoid de energized forward reverse solenoid de energizes and slow and interme...

Page 105: ...ydraulic fluid flows through minimum pressure orifice to Jeft face of drive piston and piston moves right at 2 ips 1 50 PSI DUMP VALVE SEAL HOLES EXTEND PISTON CONNECTIN SUMP MIN PRESS ORIFICE SUMP SU...

Page 106: ...m consists of a motor driven impeller that forces air through an absolute filter glass and asbestos and related ducts upward to the spindles present in the cabinet Much of the ducting is extendable to...

Page 107: ...70602500 A AIR BAFFLE DISTRIBUTION CHAMBER EXTENDABLE 1 y DUCT It ABSOLUTE FILTER BLOWER DRIVE MOTOR Figure 4 25 Blower System BLOWER IMPELLER SCI09 4 49...

Page 108: ...sed by the index transducer The pulse outputs of the transducer are used to determine disk pack rpm and to detect organizational segments of the disk pack The lower hub of the disk pack contains a rep...

Page 109: ...SECTION 5 DIA GRAMS...

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Page 111: ...TUATOR SOLENO IDS HEADS LOADED SWITCH REVERSE CARRIAGE MOTION NOTE CARRIAGE ENCOUNTERS REVERSE POSITIVE STOP RESIDUAL HYDRAULIC PRESSURE HOLDS CARRIAGE IN THIS POSITION DETENT PAWL SPRING OVERRIDES FA...

Page 112: ...1 1 0 0 I I I 1 1 O5 C C f o K102 20Y t 501 LOCAL OREMOTE 02 I l K01 K01 20Y I UPPER 507 A5S501 B BI v I 0 0 I 1 I I I K05 r f _D C ____ _ LOv R 1X CABINET CD K101 2X CABINET 0 DECK I K 101 K102 K1D1...

Page 113: ...J o 0 o t 01 o o x 01 I J 1 UNIT SneCT ACCOHPNlI O BY TRANSMISSIIJII OF LOGIC IlJIotER IIIE rOR DESIAEO DECK 6G6 Figure 5 6 Direct Seek Sequence...

Page 114: ...I II 22 TRACKS AT T IPS I I n II 4 3 TRACKS AT 2 IPS I I I II I I I I II H 1 0 SEC MIN iJr u l 1 I I I I I II TAG Jl II I 1 0 4 SEC j I II MIN I I TAG II II I II I I I Jl I I f1 I I AOD CONT I II BUS...

Page 115: ...J o 0 o U1 o o U1 I CO NOTE UNIT SELECT ACC M NIED BY TlIANSMISSION IF LOGIC MJI4IIER CODE FOR DESIRED DECK Figure 5 8 Return to Zero Seek Sequence...

Page 116: ...FORWARD FF CYLINDER TRACK PULSES INTERMEDIATE FF SLOW FF FORWARD CAR RIAGE MOTI ON DETENT PAWL IN ON CYLINDER 26 IPs I _______________________ I L HYDRAULI C 1_ _ _ _ _ _ _ _ 1 _ _ _ _ _ _ _ _ __ ____...

Page 117: ...tAT HEAD IS READING A KNOWN PATTERN EVEN UNDER WORST CASE CONDITIONS OF HE AD SKEW RPM AND INDEX TOLERANCES DUE TO DISK PACK INTERCHANG o ADDRESS 36 BITS TYPICAL TWELVE BIT UPPER ADDRESS 12 BIT LOWER...

Page 118: ...03 r l __ I 4 1 1 __I CONN MTG BKT DRIVE MOTOR POWER SUPPLY DC GROUND r l r I I L J I I TB02 I I I I i J TeOS r 1 _ J TBOI UPPER DECK DRIVE MOTOR LOWER DECK FILTER BOX GROUND GREEN Figure 5 11 Ground...

Page 119: ...ON ZONE 5 6 THIS SHEET IN ZONE 7 n 5 4 6 17 E CONTINUED HERE FROM ZONE I JTITLE BLOCK 5 4 7 ODD NUMBERS USED TO DESIGNATE ZONES DURING FIRST PASS THRU ALPHABET EVEN NUMBERS USED ONLY IF CONNECT IONS...

Page 120: ...Q A29 21 T PE _ I In Azg 1225 1227 1 J200 45 I I 24 2 1225 I227 LOGIC NO 8IT 2 IJ200 46 I A29 16 TPO A2i 18 Gt _ I I 1227 1228 UlOO 4i A 141 lie A2 1227 1228 I LOGIC NO 81T 3 NOTE S CD NOT USED PARTIA...

Page 121: ...2 J n 1 n 1 I I II NTERMEOImf C I04 I 10 SPEED IJ I I III rTl I TOl7 UNIT RDY I _ ___ Ie t JAOHI I lIls I 1 sol I I OOS I I I LASTaSOS 1 I 3 v J 9 ___ I _ J All I JIOI U r cn TIIANSDUCER SHUT I 706025...

Page 122: ...09 G710 HOlD G711 HDII G712 HOl2 G713 HOl3 G714 HDI4 G715 HOl5 G716 HOl6 G717 HDI7 G718 HDI8 G719 HDI9 6v 2 17 5 T j I 1 5202 C J I A17 32 I T SWITCH L _ _ _ _ NOTES 1215 TOl2 All FAULT R92A 1 2t V I...

Page 123: ...I AZI 45 AI6 I II 10 14 I IS KIOO KIOI F24 AI6S KI02 K I 05 I 24 IUD 8 K I 0 I K I 07 F24 AilSA 16 I K I 01 II 10 1 24 AIIZ E 32 K I 10 KI I I 1 24 AII2D 64 IS I I 12 I I I S 1 24 AIIZI AII U AIIIII4A...

Page 124: ...AL FORMS WIRED AND GATE WITH THE OUTPUT OF LISTED 0 7 8 9 10 TERMIS GATE IS IS SHOWN ON SAME SHEET AS LISTED TERM I 8910 o LOCATED ON OPERATOR PANEL SHOWN FOR REFERENCE ONLY 2 7 IO CD CIRCUIT OPEN 7 8...

Page 125: ...CONNECTIONS TO B AND USE TERM NUMBERS IN PARENTHESIS WHEREVER THEY OCCUR REPEATED FOR HEADS 7 4 3 0 REPEATED FOR HEADS 16 1 IZ 1I REPEUED FOR HEADS 2 1 8 1 REPEATED FOR HEADS 13 14 17 18 PARTIAL D TA...

Page 126: ...i I z gO 6 I z Z JJ I 4 I I I 9APN 8AJN SAWN BASN SAHN SAKN BFGN BANNjSFBN o o o I 1 AAuJ J o o o E n u I u u n u z e AT NIBARrJSA T NI eARNlsAT NlsAR NlsAZN I A B 10 II 12 13 14 15 16 17 18 19 20 21...

Page 127: ...5 42 AI5 45 AI5 9 A15 29 A15 24 A15 13 AI5 22 A15 40 A15 33 A15 14 A15 28 A15 34 A15 12 A15 21 AI5 20 A15 38 A15 36 A15 16 A15 17 A15 25 A22 8 A22 5 A22 9 17 I I WI2 WII2 J2M T8203 4 T8203 B J204 30 8...

Page 128: ...T803 r I I I II I I 7 I I L NEUT AC GRD NOTES CD FOR UPPE R DECK FOR LOWER DECK CD Tal 20T LOGIC XMTR AND RCVR 5 24...

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Page 135: ...T 1 01 LOW I AI U It Oa 1I D IttL AUO HAL 0 L OG It C U IS T 1fU A4 L OWEIt OfCII AND LATtO MAL 0 LOGIC OtUSIS _lilT 1 u IIt OICII CO TltOL IL A LOWPDfQl CONTROL IL e AUIlILIAIt CONTACTS J IWWfTCII a...

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Page 137: ...DI04 VT IIOfU CD JIOII orca UIWIa DCCK InAY CONnInS li 111 i 70602500 E i noo r e 1 c r r_ _1l t___ 141141 OGle tr IW I Itll aov LOGI IIOW fO fO zov LOG IC IIOW I rrrr _r MPtn O YII II I I IOT LOGIC K...

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Page 141: ...I LOCAT cc OIIOING TO Till 01 1 0WINO I U 1t OCIC 0 IIILATEO HAL 01 LOGIC CHASSIS lINT MNII 4 I OWU OICII 0 ATID HAL 01 I oal C CHASSIS Alln AICI I U 0101 COIIUOL NIL LOWU 0101 COII OI ANII AI C UIIII...

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Page 143: ...4 o N C1I o o CI1 I CX It i It o 0 89 P i f II I I I I N N N i g 0 a e 5 Ii a b n n n c 2 It 8 0 a Ii i j e a a n n I I I i I IIIII I I I I I I I i iit I I c i I I I i 8 e j g n n...

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Page 147: ...TO T POL LOW NG g It t t t A OICil COII aOL JIlL AI LOWIIt OICil COIiTaoL MIL A C t AUIIILIUY COIITACTS j Ot KAII I g Ot COIITACT lDltfTl ICATlOII 0 TPiWCL WITOI CDIITICT JDbI1 ICATIO11_ D TOtal lll...

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Page 149: ...4ODtI OO SN fT 4 T TIOfIAU II ILIU TO IITM CTII CAL 011 1I NlCAL uGS nSf r II QItt TH 0 DEC_ T uK ON Y DIll T OF UG FOil STIM Co T IIL T CtIIoTIIOL IL 55 1 IL I Till CIIANeAL UO IS V IL II I _0 IIT _...

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Page 151: ...4T8204 17 70602500 A K04 _ _ L2 1 L3 DC S102 N I I _ OF 3 T802 10 82 101 CRI14 I ____ I R3 52 16 8 26 52 16 8 26 II NOTES CD FOR UPPER DECK RI E ASSIS GRD 2 L J 4 1 1 c j 4 REFERENCE DESIGNATORS WITH...

Page 152: ...40021300 R3 10 K 4 1 6 4 U R2 CRI 6 8 K 01 Uf 47 II 20V 2 L 20 V r TRANSDUCER PRINTED CIRCUIT CONNECTOR CONTACTS LIST OF MATERIAL I APPLICATION IQTY HQIl U illLt S 0 1 c n o e C SCHEMATIC DIAGRAM CONT...

Page 153: ...1 35 VDe 20V 5 20 V TRANSDUCER PRINTED CIRCUIT COMECTOII CONTACTS LIST OF MATEIIIAL I APPLICAnON IlllY IIEIIlD Utlt SI OTH S ClrlIO IT Dot f SCHEMATIC DIAGRAM CONTROL OATA A COMPONfNl ToI V I s IJo J...

Page 154: ...UF 2N3569 5 R4 R7 f40021900 10 K 330 CR2 3 g R8 IK 20V_ 3 201 TRANSDUCER PRINTED CIRCUIT CONNECTOR CONTACTS LIST Of MATERIAL I APPLICATION QTY ItEQD A Ufllll I o O HlltWl U S Clfl D CAT SCHEMATIC DIA...

Page 155: ...7 0 4 4 0 7 3 0 8 0 T V C SA if 1115A 1 RlSC 1000 PF 20 RISL 20VOt r 1 1 2 Clr r Il rL III5G UF D t 10K U K IL K U ClSC r E t CISE tl cp t C 10001 1 tl w I 16 I 6 III 15 TP W 8 rc 10 r 24 21 1115 K 10...

Page 156: ...APACITOR CONNECTED TO PIN a 6VDCI AND PIN 16 GNDI ALL ca _ CAPACITORS ARE ASSOCIATED WITH THE INTEGRATED PACKAGES THE LAST TWO ALPHA NUMERIC CHARACTERS IN THE REFERENCE DESIGNATION OF THE INTEGRATEO P...

Page 157: ...r 7 Z 6 f n D I S _ NOTES I ALL DIODES SILICON I121I50Z Z UNL ESS OTHEIIWIIE SPECIf1 D ALL CAPACITOR VAlUES ME t 10 AU INTEGftATED s _ IN THE ICHEMATIC HIIIIE A DECOUI lIIII CAMCITOR CT D TO PII 81 1...

Page 158: ...32 32 38 16 40 7 9 8 7 10 720 4 17 26 2 t28 434 II NOTES I ALL DIOOES SLlCON 92115021 2 UN ESS OTHERWISE SPECIFIED ALL CAPACITOR VALUES 10 3 UNLESS OTHERWISE SPECIFIED ALL RESISTOR TOLERANCES 15 ALL R...

Page 159: ...146 4 ALL OTHER DIODES SILlCON 92115021 5 UNLESS OTHERWISE SPECWIED ALL CAPACITOR VALUES IO t 6 UNLESS OTHERWISE SPECIFIED ALL RESISTOR TOLERANCE 5 1 ALL RESISTOR VALUES IN OHMS ALL RESISTOR RATED 114...

Page 160: ...92 5011 8 UNLESS OTHERW1SE SPECIFIED ALL RESISTOR TOLERANCES t All RESISTOR vALUES IN 0ttMS All RESISTORS RATED 1 4 9 UNLESS OTHERWISE SPECIFIED ALL CAPACITOR VALUES tlO ALL INTEGRATED PACKAGES SHOWN...

Page 161: ...RIAGE MOTION HEADS l OADED RTZS FF CYLINDER TRACK PULSES DETENT PAWL IN REVERSE CAR R I AGE MOT ION DETENT FF ON CYLI NDER 70602500 A F 60 SECt APPROX 4L ________________ I I 26 2 IPS IPS t 2 rps ____...

Page 162: ...OIo ED TO OECK OECELERATlN6 _ Of SPINDLE IS ADECIIA IE TO OPEIIA IE HYDRNJLlC PUMP VIA ORI IlELT AT A LEVlL SUFJ ICIDIT TO RETUIII CARRIA TO REAR STtP ANI MOLD IT 1l RE OECK 0 CENOTES I JRST OECK CINI...

Page 163: ...e Direct Seek forward and reverse function the Return to Zero function and the Read Write operations Figure 5 11 shows the ground scheme for a cabinet The logic diagrams for the unit are provided on p...

Page 164: ...1 o o At N JTLS DEC 0 OCN JT S r IRST on C J N CTLO TO C J TROLL R VIA POIIIER SEIlJ NCE L IN S THIS CONOI11 MAINTAINEO BV MTR F OR HDS UNLD OR SPEED OR TlS 51 GNALS NO ScCS A Figure 5 1 Power On Firs...

Page 165: ...ANY SEEK I A1 4 A TOZI SEEK 12 TOZZ COMPLETE OR SEEK ERROR o TOll SEEK T022 COMPLETE AI8RHS All 54 Y515 OR SEEK ERROR 1217 1 1 1 All I TOIS 16 I NOTES I LOGIC ON THIS SHEET FOR UPPER SPINDLE A IWW TO...

Page 166: ...AI5 58 A03 38 AI5 37 TESTER A03 40 TESTER A03 41 TESTER _ v v IZ TI 15 I AI2 13 I AI2 26 OJ T Ai5 50 _ I lI20 _ _ n R lIZ 54 5 I 4 r I I I Y406 I I I I I Y 1417 I I I I I 1 460 I I I I I r 1 I I I 1 4...

Page 167: ...TRANSISTORS SILICON IIPN 2115646 50210500 5 ALL DIODES SILICON 921111021 6 UNLESS OTHERWISE SPECIFIED ALL CAPACI7 OR VALUES t10 7 UNLESS OTHERWISE SPECIFIED ALL RESISTOR TOL ERANCES t5 ALL RESIS7 OR V...

Page 168: ...50106100 RI3N TP E 4 7K 2 0V 9 f CI 3C jRI3G 1 11 7RI3P I Ie RI3A 220 013 920 20V I RI9C J rRI9G 023 RI9P 10K CR 3A i Q19 f8l0 IK 8 L 0 0 t LIC F I p TP TP l RI30 RI3H CI98 220 014 820 0IUF R13 RI3R...

Page 169: ...UNLESS OTHERWISE SPECIFIED ALL RESISTOR TOLERANCES lr ALL RESISTOR VALUES IN OHMS ALL RESISTORS RATED 1 4 W 7 UNLESS OTHERWiSE SPECIFIED ALL CAPACITORS VALUES 10 ALL INTEGRATED PACKAGES SHOWN IN THE...

Page 170: ...lEO CRISO ALL RESISTOR TOLERANCES t 5 tl 29 ALL RESISTOR VALUES IN OHMS 2 CR A CR C n V ALL MSISlIlRS RATED 1 4W r tRI6A RI6G CRl 7 UNl ESS OTtCItWtSE SPEC1f1EO CRlt8 470 QIII 390 J 28 ALL CITOR YALUE...

Page 171: ...40l0l DIODE SILICON ZENER 502401 13 DIODE S1LlC ZENER 502 011 0100 SILICON ZENER 5024011 0100 SIUCOfII 92115021 DIODE G MlANdii 92116002 ALL OTHER DIOOES SILICON 50241100 10 UNLESS OTHERWISE SPECIFIED...

Page 172: ...ASSY 50108100 c 0 I I d 42 J p 18 4SJ y 50 32 II I IIIIIII 1 I CR970 i2 III AI i 5 l g9 3 A _ TP E 2c l5 I 33 9 7 3 DT lED _iii mUll TlTIl 2 4 D1M o C _11111111 111_ SCHEMATIC DIAGRAM LOWER 01 FFERENC...

Page 173: ...SI CON NPN 2N3569 50210801 i TRANSISTOR srLlCON PNP 2N3640 50210400 3 TRANSISTOR SILICON PNP 2N3645 50211200 4 TRANSISISTOR SILICON PHP 2N4258 50211500 TRANSISTOR SLICON PNP 2N49t6 50211600 6 TRANSIST...

Page 174: ...94A 56 R948 56 R95A 56 R95B 56 R93A 56 R938 56 t 33 34 f t 41 44f 70602500 A 7 r R91A 18 56 1 _ r i l 56 R898 56 5 t 4 R8BA 56 aa Ra6A 56 Ra6a 56 IIj NOTES I UNLESS OTHERWISE SPECIFIED ALL RESISTOR TO...

Page 175: ...PNP 2N4258 50211500 READ PREAMPLIFIER TYPE AMP I EF 1400 11844900 3 ALL OTHER TRANSISTORS SILICON NPN 2N3646 50210300 DIOOE SILICON ZENER 50240115 5 ALL OTHER DlooES SILICON 50241100 6 H ESS OTHERWIS...

Page 176: ...OHMS ALL RESISTORS RATED 114W 6V 6V II ff 12 II I rrv iSK202 30 ALL INTEGRATED PACKAGES SHOWN IN THE t F24 14 SCHEM ATIC HAVE A DECOUPLING CAPilCITOR IC R B R3D eRgDA 6 Z Ie A _ 2C 32 CONNECTED TO PIN...

Page 177: ...I 12 9 IC D 2 7 K ALL INTEGRATED PACKAGES SHOWN IN THE SCHEMATIC HAVE A DECOUPLING CAPACITOR CONNECTED TO PiN 8 34 SYDCJ AND PIN 16 GNDJ ALL C8_ _ CAPACITORS 26 ARE ASSOCIATED WITH THE INTEGRATED PIlC...

Page 178: ...TOR VALUES IN OHMS LL RESISTORS RATED 114W ALL C P CITOR V LUES IO ALL DIODES SILlCON 92115021 ALL INTEGRATED P CK GES SHOWN IN THE SCHEMATIC H VE DECOUPLING C PACITOR CONNECTED TO PIN 8 6VDC AND PIN...

Page 179: ...SHOWN IN THE OR SCHEMATIC HAVE A DECOUPLING CAPACITOR 6V 10 CONNECTED TO PIN 8 6VDC AND PIN 16 GNOl ALL C8__ CAPACITORS ARE ASSOCIATED WITH THE INTEGRATED PACKAGES THE LAST TWO ALPHA NUMERIC CHARACTE...

Page 180: ...TORS RATED 1 4 w ALL CAPACITOR YALUES t O EG A C 02 HOWN IN THE SCHEMATIC HAVE A DECOUPLING CAPACITOR CONNECTED TO PIN 8 6 voe AND PIN 16 GNO ALL C4 __ CAPACITORS ARE ASSOCIATED WITH THE o tr EGR T A...

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