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Ampex DFR-932, Operation And Maintenance Manual

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Ampex DFR-932 Operation And Maintenance Manual Download Page 354

Summary of Contents for DFR-932

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Page 3: ...DRIVE OPERATION AND MAINTENANCE MANUAL 3311546 01 AUGUST 1980 THE INFORMATION IN THIS MANUAL IS PROPRIETARY AND IS NOT TO BE REPRODUCED OR DISSEMINATED IN ANY FORM WITHOUT PRIOR WRITTEN CONSENT OF AMP...

Page 4: ...l i thru ix Original x Blank Original 1 1 thru 1 13 Original 1 14 Blank Original 2 1 thru 2 29 Original 2 30 Blank Original 3 1 thru 3 140 Original 4 1 thru 4 44 Original 5 1 thru 5 27 Original 5 28 B...

Page 5: ...nmental Limits Operating 1 23 Environmental Limits Shipping Storage 1 24 Power Requirements 1 25 Physical Characteristics 1 26 Performance Characteristics 1 27 Recoverable Data Errors 1 28 Non Recover...

Page 6: ...n 2 22 2 33 Remote Power Sequence 2 22 2 34 Fault Operating Instructions 2 22 2 35 Disk Cartridge Handling and Storage 2 23 2 36 Disk Cartridge Installation 2 23 2 37 Disk Cartridge Removal 2 23 2 38...

Page 7: ...32 3 38 Overcurrent Protection 3 32 3 39 Power On Sequence 3 32 3 40 Overvoltage Protection 3 34 3 41 Momentary Power Failure Sensing Circuit 3 34 3 42 Remote Off 3 34 3 43 Status Display 3 34 3 44 F...

Page 8: ...IV iv MAl NTENANCE 4 1 4 1 Introduction 4 1 4 2 Maintenance Precautions 4 1 4 3 Safety Precautions 4 1 4 4 Equipment Precautions 4 1 4 5 Maintenance Tools and Expendables 4 1 4 6 Maintenance Intervals...

Page 9: ...stallation 4 27 4 38 Drive Tests and Adjustments 4 28 4 39 Head Alignment 4 28 4 40 Precautions 4 29 4 41 CE Cartridge 4 29 4 42 Head Alignment Procedures 4 29 4 43 PCB Adjustment 4 34 4 44 Confirmati...

Page 10: ...uration Daisy Chain Configuration DC and Frame Grounds Sector Number Selection Model Selection Operator Controls and Indicators Disk Cartridge Installation and Removal Maintenance Switches and Indicat...

Page 11: ...Head Retract Error Disposal Timer Interrupt Seek Interrupt SMD Mode Only Command Interrupt Seek Command Service SMD Mode Only RTZ Lower Command Service RTZ Upper Command Service Offset Command Servic...

Page 12: ...arth Assembly Removal and Installation 4 9 Card Cage Assembly Removal and Installation 4 10 Fan and Power Supply Removal and Installation 4 11 R Carriage Assembly Velocity Sensor Assembly Sensor Rod a...

Page 13: ...itions Ribbon Type Read Write Cable Signal Definitions Ribbon Type Bus Tag Decode Functions Input Port Output Port Input Port Functions Output Port Functions Maintenance Tools and Expendables Maintena...

Page 14: ...SECTION I GENERAL INFORMATION...

Page 15: ...2 3 Total Capacity M Bytes 32 64 96 The following are standard features of the DFR 900 series disk drive 1 3 Key Features High reliability Winchester technology for fixed disks High maintainability n...

Page 16: ...R CONFIGURATION Transfer rate of 9 677 M bits sec LED status indicators for malfunction diagnosis 1 5 CUSTOMER SELECTABLE CHARACTERISTICS The following characteristics are selectable by the customer a...

Page 17: ...ves referred to as the upper device and the lower device This permits independently seeking the two sections ofthe drives to different cylinders if desired Each interface requires a different set of i...

Page 18: ...DC POWER SUPPLY SPINDLE DRIVE MOTOR AND BRAKE SEALED FIXED MEDIA HEAD DISK ASSEMBLY AND IMPELLER SPINDLE 0 0961A 1 4 FIGURE 1 2 MAJOR COMPONENTS...

Page 19: ...h the fixed disk module area to the rear side Some unfiltered air flows through ducts on each side to cool the electronics and motor at the rear 1 17 Deck Plate A rigid aluminum cast deck plate is use...

Page 20: ...578 560 bytes unit cartridge x1 fixed x1 65 157 120 bytes unit cartridge x1 fixed x2 97 735 680 bytes unit cartridge x1 fixed x3 1 2 or 3 servo 1 data servo 1 data servo 3 data 1 servo 5 data 1 servo...

Page 21: ...I 21 I CE J I I 22 I I2D I 23 I DO I 24 24 EVEN CVLlNDER HEADST FIGURE 1 3 HEAD NUMBER FOR SMD INTERFACE 0 0897 TODD CYLINDER HEADS I s I I I 0 I SPINDLE Is I I 0 I D J I I I D J I o J D J IU CD I 4 4...

Page 22: ...ilable 6 038 bpi inner track 4 038 bpi outer track 6 274 bpi inner track 3 881 bpi outer track 384 tpi 367 tpi Miller Code MFM 9 677 M bits sec 4 128 NOTE The sectormark is derived from the servo trac...

Page 23: ...ping Storage 4 1 24 Temperature Relative Humidity Altitude Shipping Vibration Shipping Shock Power Requirements 5 to 90 non condensing max wet bulb 85 F 30 C 5 1 000 feet to 25 000 feet 304 8 m to 7 6...

Page 24: ...f 1011 bits read 1 28 Non Recoverable Errors The unit shall not exceed one error per 1012 bits read non readable in twenty seven consecutive retries three retries at each combination of data strobe an...

Page 25: ...le it is out ofthe disk receiver see figure 1 5 1 31 Reliability a Failure Definition A failure is defined as the inability of the unit to perform its specified function within the requirements of thi...

Page 26: ...Maintenance Preventive maintenance shall be performed at six month intervals It shall not exceed 1 0 hour when performed by fully qualified personnel using Ampex recommended tools supplies and proced...

Page 27: ...0 0966 FIXED SERVO jt REMOVABLE 1 i L J LOWER ACTUATOR UPPER ACTUATOR DATA FIGURE 1 6 FIXED AND REMOVABLE MODULES 1 13...

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Page 29: ...SECTION II INSTALLATION AND OPERATION...

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Page 31: ...ack mounted as shown in figures 2 3 through 2 7 2 5 Height A minimum of 12 inches distance between the bottom surface of the unit and the floor must be provided to accommodate removal of the data modu...

Page 32: ...2 2 FIGURE 2 1 DIMENSIONAL VIEW 0 0898...

Page 33: ...10 I I IBI Cable l I A I Cable f r 0 00 I I f 5 775 5 TOP VIEW 5 0 N I I 775 5 720 5 SIDE VIEW 55 150 NOTE All dimensions ore in millimeters 0 1056 FIGURE 2 2 DETAIL DIMENSIONS 2 3...

Page 34: ...Rack Plate Nut A M5 Screw Set 0 1057 2 4 FIGURE 2 3 BRACKET AND RACK IN REAR SIDE FITTING Plate Nut B Rail Bracket A Rail FIGURE 2 4 RAil AND BRACKET IN REAR SIDE FITTING 0 1058...

Page 35: ...Metal Fitting MS Screw set Plate Nut FIGURE 2 5 Main Frame Rail M4 FORE SIDE FITTING Unit FIGURE 2 6 RAIL AND UNIT 2 5...

Page 36: ...arriage stopper shaft Turn the shaft clockwise to unlock the carriage and fasten the screw to secure the stopper shaft see figure 2 12 Note If drive is not rack mounted the locking mechanism for the l...

Page 37: ...I A I I I I I II I I I l 11 II I Ii I LJ 3 6 11 707 2 f A 775 5 I 64 7 NOTE All dimensions are in millimeters D 1062 FIGURE 2 8 RAIL BRACKET DETAIL SIDE VIEW N...

Page 38: ...lC 0 439 4 00 J 0 lC 1l m t Ll I I J lC 00 D NOTE All dimensions are in millimeters D 1063 FIGURE 2 9 RAIL BRACKET DETAIL SECTIONAL VIEW Front Door o D N 404 I I I J w 0100 J 00 I __ m 480 NOTE All d...

Page 39: ...Power Supply Top View Card Cage FIGURE 2 11 UPPER CARRIAGE STOPPER Fan 0 1065 Module Bottom View 0 1066 FIGURE 2 12 LOWER CARRIAGE STOPPER 2 9...

Page 40: ...e AC power circuit breaker j On the PRC board set the REMOTE LOCAL switch to the REMOTE position unless the system requires power sequencing control to be at the unit k Install the Control and Read Wr...

Page 41: ...067 White Green Black FIGURE 2 13 100 V 120 V POWER AC CABLE 1 3000 3500mm NEUTRAL GND HOT 19 NOTE All dimensions are in millimeters 21 Green Yellow GND Blue NEUTRAL Brown HOT Approved by VDE 0620 0 1...

Page 42: ...2 12 p P J J I 2 r V V v v 1 1 B Cable Connector 19 L f A Cable Connector lPlN IPIN DTC CNT DAC for Dual 0 0 c J oc J ID D BACK VIEW 0 1069 FIGURE 2 15 READ WRITE AND CONTROL CABLE CONNECTORS...

Page 43: ...le length 50 feet Maximum individual B cable length 50 feet FIGURE 2 16 STAR CABLE CONFIGURATION Controller System GND J 0 1074 Note Maximum cumulative A cable length 100 feet Maximum individual B cab...

Page 44: ...slide distance 2 12 Grounding NOTE AC and DC grounds are tied together in the rear of the drive 2 13 DC Ground The DC ground terminal is located on the rear panel figure 2 18 and is isolated from fra...

Page 45: ...are preassembled on a printed circuit board and mounted behind the control panel assembly Figure 2 21 shows the locations of these switches and indicators Functions of operator controls and indicator...

Page 46: ...SW 10 1024 CO 9 512 SWO 1 2 3 4 5 6 7 8 9 1011 7 128 HHgg 3 8 2 4 1 2 o 1 1679 dibits or sector clocks sector FRONT VIEW SVU 1 J 0 1076 2 16 FIGURE 2 19 SECTOR NUMBER SELECTION...

Page 47: ...MODEL NO HEAD NUMBER PATTERN CUT UPPER LOWER FIXED 32M bytes 1 1 0 64M byt es 1 3 0 96M bytes 1 5 0 IT x PATTERN CUT ____ I r BACK VIEW PRC 0 1077 FIGURE 2 20 MODEL SELECTION 2 17...

Page 48: ...X 14 X X X X X X X X X 15 X X X X X X X X X 16 X X X X X X 17 X X X X X 18 X X X X X X 19 X X X X 20 X X X X X X X 21 X X X X X X X X 22 X X X X 23 X X X X X 24 X X X X X X 25 X X X 26 X X X 27 X X X...

Page 49: ...59 X X X X 60 X X X X X X X 61 X X X X X X 62 X X X X X X 63 X X X X 64 X X X X 65 X X X X X 66 X X X X 67 X X X X X 68 X X X 69 X X X 70 X X X X X X X 71 X X X X X 72 X X X X X 63 X X X X X X 74 X X...

Page 50: ...t is activated for the removable cartridge UPPER or the fixed disk LOWER by independent write protect switches When these switches are operated the media write driver is disabled 2 23 Cartridge Missin...

Page 51: ...opped rotating the interlock solenoid then releases the latch If a loss of AC power occurs the interlock solenoid prevents the door from being opened to prevent damage to the cartridge The spindle wil...

Page 52: ...the process of performing one of its functions If the START STOP switch is operated when the heads are loaded the carriage will immediately perform a retract a Set the START STOP switch to the STOP p...

Page 53: ...dge Installation Refer to figure 2 22 for the following procedure a Release the latch under the center lip of the front door and pull down the door NOTE To release the latch on the front door the AC c...

Page 54: ...DISK PACK IN PLACE 7 r ACCESS DOOR 0 0965 2 24 FIGURE 2 22 DISK CARTRIDGE INSTALLATION AND REMOVAL...

Page 55: ...he top cover c Verify that the read write heads are fully retracted If the heads are not retracted carefully retract the heads by hand NOTE When the heads have been retracted by hand inspect for damag...

Page 56: ...ger exist REMOTE LOCAL Provides a manual override for power sequence lines ON LINE OFF LINE Provides a capability of inhibiting all signals except for read write and clock signals DISPLAY Displays det...

Page 57: ...at the rear of the drive Figure 2 24 shows the location of these indicators Overvoltage Overcurrent indicates an overvoltage or overcurrent condition within the power supply Remote Off indicates an o...

Page 58: ...Crossing Timeout L OA Servo Settling Timeout L 08 Servo AGC Error L OC Drift off Cylinder L OD First Seek Timeout L OE Fault L OF 10 Retract Timeout U 11 12 No Servo Track U 13 14 Seek Timeout U 15 R...

Page 59: ...ches S1 through S4 see fig ure 2 23 Switch S1 ON LINE OFF LINE provides the manual capability of inhibiting drive transmitted signals except for read write clocks and data toggle switch S2 selects the...

Page 60: ...SECTION III THEORY OF OPERATION _ _...

Page 61: ...ta are to be recorded by the disk drive a single drive unit must be selected its status reply must be normal its read write heads must be positioned to the proper cylinder and one ot the read write he...

Page 62: ...ce Power and Open Cable Detector lines in the Control cable b Read Write Cable A termination resistance as shown in figure 3 2 is required at the receiver end of each transmission line of the Read Wri...

Page 63: ...US OUT 2 6 36 Control Unit BUS OUT 3 7 37 Control Unit BUS OUT 4 8 38 Control Unit BUS OUT 5 9 39 Control Unit BUS OUT 6 10 40 Control Unit BUS OUT 7 11 41 Control Unit BUS OUT 8 12 42 Control Unit BU...

Page 64: ...nit Selected 22 9 Drive Seek End Upper 10 23 Drive Ground 11 Spare Index 12 24 Drive Seek End Lower 3 12 24 Drive Ground 25 Spare Sector 13 26 Drive 1 26 conductor cable maximum length 50 ft 2 Not gat...

Page 65: ...0 OR EQUIVALENT INTERFACE CABLE REQUIREMENT 30 Twisted Pairs Ribbon Coble 2 Twists per inch Charocteristic Impedance IOO IO ohms 28 AWG 7 strands eoch conductor RECCOMMENDED Spectra Strip 3 CT 6028 78...

Page 66: ...1 65 ns ft nominal 50 ft 300 Vrms This section describes primarily the SMD CMD interface The independent seek interface is mentioned after a double asterisk only when it is different from the SMD CMD...

Page 67: ...L f l I _ _ _ II I CARRIAGE OFFSET CARRIAGE OFFSET I fI I TAG 3 CONTROL SELECT I n I BITS 2 or 3 120nsMAX 1 120nsMAX ON CYL and SEEK END J FTi 3 0 rns NOM r F 3 0rnsNOM 5 0msMAXI 5 0 ms MAXI ZERO TRAC...

Page 68: ...l On Cylinder position toward the spindle See figure 3 3 for timing After dropping Offset Plus a 5 ms delay is required before a Read or Write is initiated When servo is in an offset mode no write ope...

Page 69: ...l jLhI 1 1 f f w 1 1 CONTROL SELECT rAG 3 3BYTES MIN 3 5 BYTES MAX 5PSMIN ADDRESS MARK ENABLE BIT5 _ I HEAD ELECT TAG 2 _ WRITE GATE BITO WRITE OPERATION ITIREAD GATE must be dropped prior to the WRIT...

Page 70: ...fset signals function as aids for recovering marginal data The carriage and data strobe position return to normal when the respective signals go false A carriage offset will result in a loss of On Cyl...

Page 71: ...s 2 Jumper pins 1 Jumper pins 0 One dibit or sector clock for SM Counter reset 1024 512 128 8 4 2 1 1 1680 Dibits or sector clocks sector Each dibit or sector clock 806 kHz clock is equivalent to 12 d...

Page 72: ...etected by the drive DC power fault head select fault write fault write while off cylinder write gate during a read operation an offset mode or a write protect mode and no head select A fault conditio...

Page 73: ...dex pulse Independent Seek Interface UNIT SELECT 2 selects upper or lower device and the above note is not relevant f Unit Ready When true and the unit is selected this line indicates that the unit is...

Page 74: ...ed j Address Mark Found Address Mark Found is an 8 0 ts maximum pulse which is sent to the controller following recognition of at least 16 missing transitions and the first zero of the zeros pattern T...

Page 75: ...ve devices are powered up Individual devices may be started and stopped once power sequencing is completed A power failure necessitates a new power up sequence When in Local Start mode each device is...

Page 76: ...ed formats for fixed and variable sector data records are shown in figures 3 11 and 3 12 Some hardware oriented constraints must be recognized when designing a format The following is a list of those...

Page 77: ...CD CD LOGICAL UNIT Tl T1me between leading edge af INDEX SECTOR and READ GATE is 8 bytes A SPLICE POINT may exist within this area 0 0906 Example No 1 What is data field length using 64 sectors TOTAL...

Page 78: ...is 8 bytes A SPLICE POINT may exist within this area 0 0907 Example No 1 What is data field length using 64 sectors TOTAL BYTES TRACK MECHANICAL TOLERANCES DATA FIELD SYNC FIELDS AND ADDRESS NUMBER OF...

Page 79: ...ading edge of desired sector d Detect leading edge of selected sector e Immediately bring up Write Gate and start writing zeros f Write all zeros for head scatter and PLO sync areas 27 bytes g Write a...

Page 80: ...after INDEX or SECTOR READ GATE must not occur later than 6 0 O 5ps after the leading edge of INDEX or SECTOR 0 0908 L if I CONTROL SELECT TAG 3 READ ADDRESS I WRITE HEAD GAP J A SYNC PATTERN II Q n d...

Page 81: ...ssembly Brake Assembly Linear Motor and Carriage Assembly Velocity Tachometer Assembly Idler Assembly and Power Supply Assembly These assemblies are described in the following paragraphs 3 17 Printed...

Page 82: ...K AM DETECTOR FAULT P A READ DATA READ I N PULSER PLO E E L PAL WRITE CURREN MFM NRZ IREAD r IB CABL mSOURCE DEMODULATOI1PATA 1 MIl UATA YCI OCI WRITE KRZ MFM DECODERIwRITE PLO RITE COMPENSA DATA 9 6...

Page 83: ...RFACE CONTROL L AMP TRACK SERVO SIGNAL GENERATOR A INDEX SECTOR PRC DTC SYNC DATA B ON CYL etc GAIN 9 68MHz DETECTOR SELECT DTC SERVO VELOCITY TIMING DETECTOR PENERATOB ur PRC DESIRED DIFFE RENCE VELO...

Page 84: ...GENERATOR OFF SET VU A CD DRIVER IN EAL b P I 8 tJ DRIVER I LPF r J AMP W AMPJl tF 3 ROTATION LOWER DRIVE HEAD SENSOR FOR HEAD IC DRIVER SPEED RECEIVER IC L CD SENSOR I I lJJ HEAD L J L SERVO DRIVER P...

Page 85: ...ier and the one for the data heads contains preamplifiers and write drivers These lC s are mounted on the flexible boards 3 22 Rotary Actuator Assembly The rotary actuator is the device that supports...

Page 86: ...3 26 MODULE ASSEMBLY MAJOR ASSEMBLIES FIGURE 3 15 FAN PCBs CARD CAGE SPINDLE 0 1079...

Page 87: ...the carriage is therefore duplicated by the magnetic rod As the rod moves an EMF electromotive force is induced in the coil The amplitude of the EMF is directly related to the velocity of the rod and...

Page 88: ...esistor Oscil I Pulse t Driver t lator I width Output Over converter rectifier current II L smoothing t r sensing circuit t resistor Remote off Output Over circuit r Sensing rectifier current J circui...

Page 89: ...IC1 1 2 CR6 POWER INTER RUPTION SIGNAL C3 1 I I J2 8 10 15VAUX 3 INPUT I Z PJ2 16 18 20 5VAUXD C4 C2 1 IC2 2 1 PJ2 4 6 5VAUXL C5 J2 2 3 5 7 9 11 13 15 17 19 GND 0 081 FIGURE 3 17 AUXILIARY POWER SUPPL...

Page 90: ...oltage and amplifies their difference Pulse width converter IC1 0 provides a continuous saw toothed wave IC1 0 5 synchronized with the clock pulse The peak voltage of this sawtooth is determined by th...

Page 91: ...RI KI RIS C6 2 line TI CR2 R2 CS line V input lSVAUX PCB CONT 0 1083 FIGURE 3 19 SURGE CURRENT SUPPRESSOR SVAUXL 2 4 8 lC4 3 RVI 6 6 7 I 5 R6 lC8 CIO C8 OCR 0 1085 FIGURE 3 20 OSCILLATOR 3 31...

Page 92: ...ters for the secondary voltages The voltage across the four current sensing resistors in series with the output currents are applied to the four current sense amplifiers represented by IC11 figure 3 2...

Page 93: ...5VAUXL 13 T2 5 1 Q CLR flR18 CLOCK 01 PULSE 4 llCK Power Switching 8 Transistor 0 rC5 I D I12 I I I II 5 1 01 JR26 1Power Switching Transistor 8 5VAUXD I C8 ClJO GND D 1087 FIGURE 3 22 DRIVER CIRCUIT...

Page 94: ...curs the overvoltage protection circuit figure 3 26 disables the pulse width converter and driver As the overvoltage occurs comparator IC1 0 triggers flip flop IC5 and the output of the pulse width co...

Page 95: ...l C t C13 PR12 R6 C18 16 I t I C20 Ri6 CR13 L2 R14 17 1 0 T I n R17 C3 CS R4 r C21 19 C14 r C22 1 1 20 CR14 T CRI L3 5 1 T 1 Rl C24 6 C4 C6 j C23 Cl j R5 C25 8 CR2 tRIll T v rn L4 CR3 9 J T R2 C12 C21...

Page 96: ...IC12 R3 C28 ICl3 R3 IClO To Flip Flop ICS 4 CR16 0 1091 FIGURE 3 25 OVERCURRENT PROTECTION lSAUX R12 SVAUXL IC PJ4 8 R13 2 4 10 SV SENSE R22 CR8 9 3 R2S 14 8 12 R14 C4 C2 ICS Overcurrent Signal Inhibi...

Page 97: ...5VAUXL 2 I REMOTE 1 IC3 OFF r I R3 R17 CR2 I I I IC4 11 I 151 I I 10 I I I I 6 Q 1 I f Cl5r 1 lCIO C17T V4 116 l14 CI3 1 rR8 CR3 R18 CR7 CR6 Tl FIGURE 3 27 INITIAL DEAD TIME ACTION LINE DISTURBANCE A...

Page 98: ...spersion of air preventing ingestion of contaminated air This airflow greatly reduces possible contamination and resulting damage to the disk surface and the read write heads 3 46 Microprocessor Contr...

Page 99: ...POWER SUPPLY ELECTRONICS MOTOR ASSY FIGURE 3 28 AIRFLOW 2nd ABSOLUTE FILTE MODULE ASSEMBLY 3rd ABSOLUTE FILTE 0 1094 3 39...

Page 100: ...es s Signal 8085 Command INT Control Signal I Interrupt _I Control SERVO R W Write Contro Output Write I Strobe Port Control I O Inter face Front Panel Control Input Read Read J c Relay Port Strobe Co...

Page 101: ...y to reach a new cylinder address from the present cylinder address calculated by the firmware is loaded into the counter L193 by DIF U Simultaneously SERVO flags and DIF9 8 are set into the register...

Page 102: ...VB SVFL D OOO I L244 I IRDIFU7 100 DIOB7 100 RDIFU7 110 I f r f A l A I or Ir DRVF IRDIFU3 100 L224 DIOB3 100 I zr J Note IC pin numbe r locati IC pins are omitted CYLENT U OOO k logic diagram DIF U O...

Page 103: ...oduced thus permitting these signals to be included in the opposite status 3 48 Memory Address Assignments The microprocessor outputs 16 bit memory addresses using the lower 14 bits only Therefore 32...

Page 104: ...is effective the number of tracks required for advancing to the new cylinder address from the present cylinder address is calculated Also servo information forward reverse slope and force fine is set...

Page 105: ...ister and flip flop from the output ports the write pulses are generated by the write strobe decoder enabled by processor write signals The registers and flip flops controlled by the output ports cann...

Page 106: ...L L5 CYL L4 CYL L3 CYL L2 CYL L1 CYL LO CYLL1 3801 NDHD U OFCW U INTF U NOHD L OFCW L INTF L CYL L9 CYL L8 HEADL 3802 DUAL HD L5 HD L4 HD L3 HD L2 HD L1 HD LQ CMNDF 3803 SEK U OFST U RTZ U HDSL U SEK...

Page 107: ...L 3003 07 03 REVRS L 06 02 SLOPE L 05 INHCT L 01 04 FCFIN L 00 01FL 8 ROWL 3004 0 OWEL L RCYLL 3005 0 CYLNO L GAINL 3006 OIFL 7 thru OIFL 0 GAINL 7 thru GAINL 0 STCYL 3007 1 CYLNO U and CYLNO L CECYL...

Page 108: ...00 SCMNO 3802 1 OFST U RTZ U OFST L RTZ L and HOSEL RCMNO 3803 07 03 06 OFST U 02 OFST L 05 RTZ U 01 RTZ L 04 HOSL U 00 HOSL L SONCL 3804 1 FONCYL L RONCL 3805 0 FONCYL L ROFSL 3806 0 FOFS L and FOFS...

Page 109: ...Flip flop output set by a pulse generated every spindle rotation Upper Actuator Retracted Switch Microswitch output 1 when the upper unit actuator is in retracted position Drive Unit On Line Alternate...

Page 110: ...indicates that actuator overvelocity has been detected 0 VLTFLT Undervoltage Fault Flip flop output is set to 1 when a voltage fault occurs SVOUT 3002 7 FINE U Fine Upper Flag 0 indicates that the up...

Page 111: ...996 0 0 1 0 3 MLTHDU Multiple Head Selected Upper 1 indicates that multiple head selected has been detected 2 WRFLTU Write Fault Upper 1 indicates that a write fault has occurred 1 MLTHDL Multiple He...

Page 112: ...W U Off Cylinder Write Upper 1 indicates that write gate is on when not on cylinder 5 INTF U Controller Fault Upper 1 indicates that a controller fault has occurred This flag is set when any of the fo...

Page 113: ...3803 7 SEK U Seek Command Upper Effective only for Independent Seek Modelj 1 indicates that tag 1 for the upper unit has been received from the interface 6 OFST U Offset Command Upper Effective only...

Page 114: ...ek Model 1 indicates that RTZ command has been given by tag 3 for the lower unit In the SMD Model RTZ command applies not only to the lower unit but both the lower and upper units 0 HDSL L Head Select...

Page 115: ...Start Switch 0 indicates that the START STOP switch is at START OFSET 3807 Not Used CYLUO 3820 7 0 CYL Ul thru Cylinder Address Upper 7 Thru 0 CYL UO Effective only for Independent Seek Modelj Registe...

Page 116: ...ress Upper 9 and 8 CYL U8 Effective only for Independent Seek Modelj Register outputs of cylinder address bits 9 and 8 from the interface written by tag 1 when the upper unit is selected UEADU 3822 7...

Page 117: ...re can be performed This is effective when making logic tests with the exerciser 6 MIS CART Cartridge Missing Indicator Lights FTP s CART lamp indicating no cartridge in the upper unit 5 SOL LOCK Sole...

Page 118: ...lt Lamp Control O lights the OFF CYLINDER WRITE FAULT lamp 1 switches it off 2 INT FLT Controller Fault Lamp Control a lights the INTERFACE FAULT lamp 1 switches it off 1 MLT HED Multiple Head Select...

Page 119: ...rites into bit 8 of the difference register counter lower ROWL 3004 Reset Actuator Overvelocity Lower Flag Resets the lower unit s actuator overvelocity flag RCYLL 3005 Reset Cylinder Crossing Lower F...

Page 120: ...ifference counter upper from counting down 4 FCFIN U Force Fine Upper 1 forcibly controls the position of the upper unit 3 REVRS U Servo Reverse Control Upper 1 advances the head toward smaller cylind...

Page 121: ...for Independent Seek Madelj 1 sets the flag to light FTP s READY U 0 resets it to switch the lamp off 5 PSQ PICK Set Reset Sequential Power Pick Flag 1 sets the power pick RPSPIK flag to send a pick...

Page 122: ...ult Upper 4 NOHD L Set Reset Nonexistent Head Select Lower 3 OFCW L Set Reset Off Cylinder Write Fault Lower 2 INTF L Set Reset Controller Fault Lower 1 0 Not Used SCMND 3802 Set Command Flag Sets the...

Page 123: ...cylinder lower flag ROFSL 3806 Reset Offset Minus Plus Flags Clears the offset minus plus flags to be sent to the servo control WOFSL 3807 Set Offset Minus Plus Flags 7 2 Not Used 1 1 sets the offset...

Page 124: ...e slice The seek service program is sliced into several blocks at appropriate points In the main routine the program forthe upper lower unit is executed block by block in order to service the upper lo...

Page 125: ...of Symbols Figure 3 45 Figure 3 46 Figure 3 47 Figure 3 48 Figure 3 49 Figure 3 50 Figure 3 51 I I C __ 8 Processing Judging Delay Preparation Terminal Numerals indicate the page where the flow chart...

Page 126: ...Exerciser F W Initialize Self Test lrn s Tirn er NO Main Loop Idle Corn rn and Disposal Unit Status Check Power Down Corn rn and Seek I Exerciser I Trap I L J 0 1098 3 66 FIGURE 3 31 GENERAL FLOW CHA...

Page 127: ...s Used A Four lamps TRANS READY L U and CART flash B TRANS lamp flashes C All the lamps TRANS READY L U CART FAULT light FAULT 1 AGC Error Lower Upper 2 Data Zone 3 Spindle Speed Flag 4 Off Cylinder C...

Page 128: ...A 1 Initialize OUTPUT Port Set Software Flags Clear Test RAM Enable Timer Interrupt Para 3 52e Prepare MAX Head 0 1099 1 FIGURE 3 32 POWER UP SEQUENCE SHEET 1 OF 2 3 68...

Page 129: ...Fi 3 33 Spindle Motor Start Sequence See Fig 3 34 First Seek L See Fig 3 35 First Seek U Set Software Flags MISSING CARTRIDGE Lamp ON f POWER DOWN Para 3 52d Set First RTZ Command ID See Fig 3 38 0 1...

Page 130: ...lay is released c When the motor reaches the required speed 3600 rpm the first seek operation may begin Ifthe spindle motor fails to reach the required speed within 45 seconds after the START switch i...

Page 131: ...Set Timer 45 SEC Para 3 53b MOTOR START RELAY ON lOOms Wait MOTOR RELAY ON MOTOR START RELAY OFF YES NO NO POWER DOWN See Fig 3 41 0 1100 FIGURE 3 33 SPINDLE MOTOR START SEQUENCE 3 71...

Page 132: ...54b r Set Initial Value to Gain Select Reg A 1 Para 3 54d Set SERVO Flags DIFF Set Tim er 2 22m sec DIF 2 REVERSE 1 INHIBIT COUNT 1 SLOPE 0 FORCE FINE 0 Constant Seek _ See Fig 3 44 D IIOI I 3 72 FIG...

Page 133: ...2 60msec 0 1101 2 Check SERVO Settling Time Para 3 541 Out _ S ee Fig 3 44 FIRST SEEK Time Out Para 3 54e _ See Fig 3 44 OVER VELOCITY Error Set FORCE FINE NO NO FIGURE 3 34 FIRST SEEK LOWER SHEET 2...

Page 134: ...SVU which serves as the reference for gain select seek time measurements d AGC Check The AGC signal is checked before loading the heads Ifthe signal is not normal a no servo track error is asserted e...

Page 135: ...heck SERVO Settling Time Out Set FORCE FINE NO Set SERVO Flags DIFF RETRACT SW OFF 1 A DIFF 4 INHIBIT COUNT 1 FORCE FINE O REVERSE 0 SLOPE 0 Para 3 5 5 c _ JL __ Set Initial Value to Gain Select Reg F...

Page 136: ...Set Ti mer 2 sec Set SERVO Flags DIFF Set FORCE FINE POWER DOWN DIFF 4 INHIBIT COUNT 1 FORCE FINE 1 ltEVERSE 1 SLOPE 0 0 1102 2 3 76 FIGURE 3 35 FIRST SEEK UPPER SHEET 2 OF 2...

Page 137: ...l Constant Seek NO Set SERVO Flags DIF 5znsec Wait Reset Cylinder Crossing Flag COUNTER Set Gain Value to Register Reset Cylinder Crossing Flag Set FORCE FINE Check SERVO Settling Tizne Out Select Gai...

Page 138: ...Lamp Para 3 52b Set SERVO Flags DIF Reset Cylinder Crossing Flag NO Reset Cylinder Crossing Flag Set FORCE FINE NO Clear Inter rupt Timer NO COUNTER Ch ck SERVO Settling Time Out Select Gain Value 3...

Page 139: ...y code 1F 16 is reached Ifthe switch is set to ON after the DSB empty code is displayed the fault displayed prior to the DSB code is shown When the RESET FAULT switch is set to ON the FAULT flag and t...

Page 140: ...3 80 See Fig 3 39 Prepare Service Address for L Execute Lower Unit Program Prepare Service Address for U Execute Upper Unit Program 0 1105 FIGURE 3 38 MAIN LOOP...

Page 141: ...0 1106 1 See Fig 3 41 See Fig 3 44 OVER VELO CITY ERROR See Fig 3 44 l AGC ERROR POWER DOWN A YES See Fig 3 44 VOLTAGE FAULT NO Para 3 590 FIGURE 3 39 STATUS CHECK SHEET 1 OF 3 3 81...

Page 142: ...3 82 DRIFT OFF CYLINDER ERROR See Fig 3 44 3 A B 2 NO YES Jump Exerciser FIGURE 3 39 STATUS CHECK SHEET 2 OF 3 0 1106 2...

Page 143: ...NO NO 2 B FIGURE 3 39 YES Prepare Address Pointer Para 3 59d Prepare Address Pointer Para 3 59d Set PCMD Reset CMDID Para 3 5ge 0 1106 3 STATUS CHECK SHEET 3 OF 3 3 83...

Page 144: ...Record DSB Code Set SEEK ERROR Set FORCE FINE See Fig 3 44 NO See Fig 3 44 CY L CROSSING Time Out D 1I07 3 84 FIGURE 3 40 CHECK UNIT STATUS...

Page 145: ...Retract Heads Soft See Fig 3 43 Para 3 600 Unlock Door Latch 0 1108 1 FIGURE 3 41 POWER DOWN SEQUENCE SHEET 1 OF 2 3 85...

Page 146: ...0 1108 2 3 86 Verify ROM Set Stack Pointer See Fig 3 32 POWER UP SEQU ENCEA FIGURE 3 41 POWER DOWN SEQUENCE SHEET 2 OF 2...

Page 147: ...an Error Upon detecting an error the head is stopped and the following steps are taken The Seek Error flag is set to notify the controller of the error An On Cylinder signal is sent to the controller...

Page 148: ...3 88 FIGURE 3 42 SPINDLE MOTOR STOP SEQUENCE...

Page 149: ...Set DIF SERVO Flags See Fig 3 44 YES Set FORCE FINE AGC NO Error or RETRACTED Retract SW ON D IIIO FIGURE 3 43 HEAD RETRACT 3 89...

Page 150: ...Drif off Cylinder 6 SERVO Settling Time Out 7 Cylinder Crossing Time Out 8 Fault Status Error 3 First Seek Time Out 4 Spindle Speed Loss 9 Actuator Over Velocity 10 SERVO AGC Error 0 11I1 1 3 90 FIGUR...

Page 151: ...RTZ Time Out 13 Out of Data Zone EOT Set SEEK ERROR Flag Stop Heads Set ON CYLINDER 14 Voltage Fault Retract Heads Fast Set HALT POWER UP RETRY Flag 15 Processor Failure FIGURE 3 44 ERROR DISPOSAL 2...

Page 152: ...YES Clear lm sec Tim er SPINDLE SPEED 4 LOSS ERROR See Fig 3 44 Count Down SW Multi bytes Tim er Restore CPU Register Enable Interrupt SW Soft Ware 0 1112 3 92 FIGURE 3 45 TIMER INTERRUPT...

Page 153: ...Set SEEK ERROR Set ON CYLINDER Set Timer Para 3 63b Prepare Difference Numbe SERVO Flags Restore CPU Registers Upper Set DIFF Number SERVO Flags 0 1113 1 FIGURE 3 46 SEEK INTERRUPT SMD MODE ONLY SHEET...

Page 154: ...are Difference Number SERVO Flags ower Prepare SERVO Flags for Zero Track Seek Set Diff Numbe r SERVO Flags 200 s Wait 3 94 Para 3 63b Reset INHIBIT COU N T Flag FIGURE 3 46 SEEK INTERRUPT SMD MODE ON...

Page 155: ...Para 3 64a NO Para 3 64a 0 1114 FIGURE 3 47 COMMAND INTERRUPT 3 95...

Page 156: ...is not turned off within 5 msec after the servo data is set it is taken as an error the head is retracted the spindle is stopped and the lamp on the FTP flashes to notify the operator of the trouble 3...

Page 157: ...NO NO Check SERVO Settling Time Para 3 650 Out NO YES Set ON CYLINDER See Fig 3 44 OUT OF DATA ZONE ERROR 0 1115 FIGURE 3 48 SEEK COMMAND SERVICE SMD MODE ONLY 3 97...

Page 158: ...2 YES D II 16 1 Check SERVO Settling Time Out Para 3 66a Set START POINTER for RTZ U A See Fig 3 44 NO SERVO TRACK Error FIGURE 3 49 RTZ LOWER COMMAND SERVICE SHEET 10F 2 3 98...

Page 159: ...A 2 NO Para 3 66b 1 D 1I16 2 FIGURE 3 49 RTZ LOWER COMMAND SERVICE SHEET 2 OF 2 3 99...

Page 160: ...NO NO Check SERVO Settling Tim e Out Turn ON READY L U Lam p 0 1117 3 100 FIGURE 3 50 RTZ UPPER COMMAND SERVICE...

Page 161: ...inished its start the drive transfers POWER PICK to the next drive etc All drives connected in a daisy chain are started up in the above sequence if the LOCAL REMOTE switch is in the REMOTE position D...

Page 162: ...C ground level FIGURE 3 53 POWER SEQUENCE TIMING c Motor relay is released d Spindle motor speed is checked for 1500 rpm e When the spindle motor has reached 1500 rpm the mechanical brake is applied f...

Page 163: ...s between each servo loop s reference value and feeds back an amount to maintain its output error voltage at zero If its output is not zero it feeds a current to the voice coil to regulate the positio...

Page 164: ...et velocity amplifiers to generate a target velocity signal If the distance for the cylinders to move exceeds 256 the D A converters are inhibited from sending outputs so that a constant target veloci...

Page 165: ...erated When the head reaches a point half the distance to the destination cylinder the positioning operation is set into the fine mode to locate the head in the center of the destination cylinder 3 78...

Page 166: ...oj I I 1 1 1 1 I I 1 1 _ _ I 2 1 o 1 1 824 G 825 B _T 82 6_ _ _ 1 827 01 __0 0 0 1122 B D 2 A T 3 A 822 E 823 24 rJ DI __DL __ 1 G 3 FIGURE 3 55 U UNIT SERVO DATA FIGURE 3 56 U UNIT SERVO DATA READ WA...

Page 167: ...k pulses are normally recorded on all tracks every 6 2 lsec The amplitude ofthe resulting read waveforms does not depend on the servo head position The sync clock consists of two parts one is used for...

Page 168: ...I II II II II II I II III II II II II II II II 1 II II II II II II II II II II II II II II II II II II II II II II II III II II II II II I II II II II II II II II II II II II II II II II II II II II I...

Page 169: ...after seek end still period In the on cylinder detecting circuit TSS is detected as on cylinder when it is near 0 volts A reset pulse is generated from the edge of the on cylinder signal These two sig...

Page 170: ...OO nor DONCYL U OOO will be active low so that the velocity integrator s output keeps increasing Signal EOT is detected by the comparator whose detecting level corresponds to three tracks Detection of...

Page 171: ...portions near the zero cross are differentiated and combined The waveforms to be differentiated are shown in figure 3 64 c Gain Select The gain select is a coefficient to convert actual velocity into...

Page 172: ...V L 7E 2 7E 11 1G43 13 1G43 12 0 7 5V J I 0 2 5V 2 S s sS i OV I L_ H 1G43 11 DEOT 100 O G B l OV L _ _ _ L _ _ _ _ OV S 2 7 _ 0 25V 0 7 5V __ _ OV 7E 2 7E 11 TP13 1G43 13 1G43 12 1G43 11 DEOT 100 D 1...

Page 173: ...I I I 1 I 1 1 I 1 1 I I 1 I I 1 I I IC43 9 H 1 _ _1 I I 1 I I 1 1 1 1 1 I I I 1 I 1 I I I I I I 1 I 1 I 1 IC43 10 IC43 8 IC 13 5 2G 2 CYLID UiOOO Reversed u u u u IC37 12 IC43 7 IC43 10 IC43 8 IC 13 5...

Page 174: ...O us IC36 LSOO IC43 LS221 FIGURE 3 62 CYLINDER PULSE DETECTION LOGIC L UNIT IC36 S IC36 9 IC36 10 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I f I H I I I I I I I I I I I I I...

Page 175: ...C47 7 IC47 2 IC46 7 IC47 6 IC46 2 IC47 3 I IC47 5 IC46 3 IC46 5 Waveforms to be differentiated I A X 90D A X OD A X 90D A X OD pifferentiated waveform D 1131 IC46 IC4 7 75452 FIGURE 3 64 A VELOCITY DE...

Page 176: ...ill be at a specified level In the U unit there are two stages one between difference 256 and difference 320 the other one over difference 320 3 88 Power Off This signal DPWR OFF OOO turns the power o...

Page 177: ...25V 0 75V TP4 OV TP5 TP6 2Q 13 IC 10 L123 2Q 5 2M 3 IC8 LOOO 2P 13 IC 9 L22l 2P 5 2C 4 DE DIBIT UiOOO 2C 12 DO DIBIT UiOOO 0 1132 3G 8 DIBITS Ui 100 ___n __n __n _ IL jf 240ps FIGURE 3 65 DIBIT DETECT...

Page 178: ...1 o 1 o 1 1 b 1 DE DIBIT UiOOQ IC24 5 IC32 9 IC32 10 IC32 8 IC30 4 IC23 3 IC23 4 I I I I 1 IC23 5 I I I I 1 IC23 6 I I L O IC23 10 I 1 1 IC23 11 L 0 IC23 12 0 1133 FIGURE 3 66 U UNIT INDEX DECODE TIM...

Page 179: ...n n 5D 12 tr LJ U U U U 4D 3 4D 2 4D 6 DSAMPLODD OOO B34 A33 ODD EVEN ODD EVEN ODD EVEN 2B 3 I 2B 5 H 4F 6 4F 4 L 4F 2 H 4F 12 L 2B 3 2B 5 4F 6 L H 4F 4 4F 2 L 4F 12 H 0 1134 FIGURE 3 67 PEAK DETECTO...

Page 180: ...13 J IC5l 12 IC5l 11 IC5l l5 fl IC50 l4 IC50 13 IC50 l2 Sync Clock I IC49 2 L J SAMPLE A SAMPLE B SAMPLE C SAMPLE D 806kHz L 0 1135 IC50 51 LSl6l l M Dibit waveform applies where R W head is located o...

Page 181: ...L INDEX Index U SVL SVL lL RC FSLOPE U DAGG FRROR U PRG 5V nTPIR 5VAUX S P T S S Compa Mono DOVCYL U PRG PRC DifZO Z5 PRC SGAIN U PRC DifZO Z 7 PRC DifZ6 z9 ROT ROT SEN SENSOR nalo Desired Velocity r...

Page 182: ...p rAmP J rator J SV Di 20 2S r 1neak Detectod Amp j I TPI6 A X OD T Subtract 9 Latch Gain J Amp Select Ylnverter A X OD Arrrn J r Amp GAIN L eak Detector A lxc 90D Subtract l eak DetectOl r L Amp Amp...

Page 183: ...1 ON at 1l T S S SAnalog SW ON at D ompensa Inverter Analog SW Amp er j SVL SVL SVL nverter I ON at Amp 1 I IAnal g SWI I FONCYL L I TPI liGate DFINE L 9TPZI ACT TPl7 Position Control Transient Posit...

Page 184: ...ted by the decoder The write compensation circuit assumes a peak shift and advances or delays the MFM data pulses under the following conditions DATA PATTERN 011 1000 10 001 COMPENSATION The first 1 i...

Page 185: ...l Cl DX DYf DRIVER 1 _ PAU II 20 PIN CON II NECTOR 2 6 I DCEO L DUNSAFE fV l L ACURREN r 2 L DWRTSEL 2 ARDAG 2 LPF UFFER TIAn R AGC I 3 DX DY DRIVER 2 PJ5 PJ4 b 2 12 PIN CONNECTOR t r I I 2 1 FLEXI J5...

Page 186: ...RECTI AGC SELEC DEMODU FIER AMP TOR LATOR ARDAGG I I 9 68 MHz DFNDAM DWDT MFM I MFM DWRIGT CONTROL 4 WRITE 3 ENCODER WRITE DREDGT GATE DWR DATA CLOCK WRITE PLO DFAULT liWR GLOC COMPo IJWFSW U DWFSW L...

Page 187: ...in the L unit is shown in figure 3 79 b LPF and Differentiating Amplifier Circuits Figure 3 79 The data readout of the cartridge and module are fed to the PAL amplifier circuits AU and AL where only...

Page 188: ...EC 2 7 bit shift Reg D 5l75x2 i I q 1 f 2 L f l ll DIN 0 1141 5112 19 36 2C 107 PJl _20 oWR DATA 10 _18 PWR DATA 00 IReceiver _19 WR CLOCKj10 __ 6 WR CLOCKjOO I Circuit DWRG 100 FIGURE 3 74 NRZ MFM E...

Page 189: ...0 r I Write Data G DIN 0 DWRG 100 0 0 1 2 1 19 36MHz OOO 2 19 36MHz OOO o ____ JrLJl_rLIL o 0 1 1 0 1142 FIGURE 3 75 NRZ MFM ENCODER WRITE COMPENSATOR TIMING CHART 3 129...

Page 190: ...DOl I Dol I DO I cPz l Z Phase Shift Register G J K Eary Condition Late MFM Pulse Occurring Condition D 1 DZ D3 DD 1 DD2 DI D2 D3 D4 DDI DD2 DD3 D2 D3 WRCLK 000 19 36MHz 000 DD2 WRCLK 100 19 36MHz 00...

Page 191: ...p J I DCE L OOO I I I IEnable I I I D l I I V I I I DWRTSEL 1001 IWrite1 I ISelect I I __ t I I D I I I I V 1 ACURRENT 100 I Gate I I I DUNSAFE 100 I I I rnsafe I PJl 4 PJl 2 PJl 9 PJl 12 PJl 8 pJl 6...

Page 192: ...MFM 1 00 where it is selected by the wrap around mode read mode or other write or idle Signal DRD PULSE 100 is data read back from the disk DWLT MFM 100 is write data which has never gone through any...

Page 193: ...is high thus NRZ data 0 is generated Except in the PLO data sync period DLOCK 1OO L 0 is forcibly locked at a low level g Data Strobe Early Late By controlling tag 3 and bus out bits 7 and 8 the cont...

Page 194: ...l 3i I LPF 10 c Ie PJ2_i7 CDRDDATA 100 If x 1 3 2 x 2 6 PJ4 6 6 I I PJ4 6 8 I I 1 ARDAGC 100 PJl 32 IDX DYI I Driver I I 1 1 PJ4 6 8 iWRDELAY O A 107 PJl 18 DMFM WDT 100I IB PJl_19 D MFM WDT 00 8112 J...

Page 195: ...D PU 107 3k E86 JlR 11 AD DAT A llXlj IA AREAD DATA 100 1 J E84 1 I 0 0 1147 E82 DTC AR DAGC 100 AGC Circuit rp I Qhl Q n P ADDRESS MARK DETECTOR 3K 107 rlLPF R ecti Her Circuit FIGURE 3 80 PULSER to...

Page 196: ...IBIT CELL 103ns o o o 1 1 1 o 1 o o 3 136 o o o 0 1148 FIGURE 3 81 PULSER TIMING CHART...

Page 197: ...6 4j l I JCLR A CO I 1ft DRDG lOO 4 DBIT5 000 D _I r I r oDFNDAM OOO E16 FRAP MD I E34 DWRG IOO x DRDG lOO DBIT5 000 t DWRG IOO FRAP MD OlO 0 1149 FIGURE 3 82 AM DETECTOR Co...

Page 198: ...AAAAAAAAA JVYVVVlJ v GLOW Pulse __m n __ 3 138 High Pulse DRDG OOO DBIT5 OOO AM ENABL CD DFNDAM OOO DFAST OOO 1 Opmin ru I r l 6 4p 1_ 6 4p rt 6 4 1 r 1I50 FIGURE 3 83 AM DETECTOR TIMING CHART...

Page 199: ...OUT 100 Ii5 I t r t l 1 loCI n LI v n 1 V B A II IB A LPF rp I ICharge DFAST l00 Camp II DL1 I DEC 193 DBIT8 OOO DBIT7 OOO 9 68MHz 100 PLL _PULSE 100 Input DWDT MFM 100 elector E17 E23 FIGURE 3 84 RE...

Page 200: ...Data Strobe Clear 3 140 NR Z Read Data FIGURE 3 85 READ PLO MFM NRZ DEMODULATOR TIMING CHART 0 1152...

Page 201: ...SECTION IV MAINTENANCE...

Page 202: ...job The module weighs approximately 35 Ibs 16 kg 4 4 Equipment Precautions a When working around the data head or servo head care must be taken to keep objects from touching the slide surfaces If a fi...

Page 203: ...rciser 120 V 50 60 Hz 3311908 01 CE Exerciser 230 V 50 Hz 3311908 02 Head Alignment Kit 3311915 01 PCB Extender 3308823 01 Head Moving Cam 3311916 01 T Type Hexagonal Wrench Bmm 3312057 01 EXPENDABLES...

Page 204: ...ly g Insert the prefilter between the first filter and the first duct Install the first duct to the first filter with three of the first duet mounting setscrews Install the accessory jumper wire 7 wit...

Page 205: ...RST FILTER ASM MOUNTING SET SCREW 4 0 1153 DUCT SEAL 2 PRE FILTER _ FIRST DUCT _ FIRST FILTER JUMPER WIRE FIRST DUCT MOUNTING SET SCREW 4 WASHER FIGURE 4 1 MAKEUP FILTER CLEANING PREFILTER CLEANING AN...

Page 206: ...described in paragraphs 4 16 and 4 17 d Disconnect the two leads of the linear motor located beside the R carriage assembly 12 shown in figure 4 11 e Remove the four screws 9 and separate the linear...

Page 207: ...PAU as described in paragraph 4 35 q Mount the R carriage assembly and linear motor coil as described in paragraph 4 27 r Install the R carriage cover s Install the data and servo heads as described...

Page 208: ...ide holes in the frame and tighten the two screws 4 15 Bottom Cover Removal and Installation Figure 4 3 a Remove the four screws 3 and 4 b Move the bottom cover 2 about 5 mm toward the rear of the dri...

Page 209: ...AD ___ SERVO HEAD CABLE SERVO HEAD LOCATING NOTCH HEAD ARM MOUNTING NOTCHES D te SERVO HEAD LOCATING PIN CDR CARRIAGE ASM TORQUE WRENCH _ HEAD MOUNTING TOOL 0 156 4 8 FIGURE 4 4 HEAD REMOVAL AND INSTA...

Page 210: ...the head i Plug the data head cable into PCB PAU j Install the PAU cover k Align the head as described in paragraph 4 42 and retighten the head mounting screw securely CAUTION Exercise care in handlin...

Page 211: ...head do not touch the slide surfaces with fingers or tools NOTE Before installing the servo head dampen an applicator with isopropyl alcohol clean the head and wipe it with a dry applicator 4 18 Modu...

Page 212: ...PIN SCREW I SPRING WASHER l I SCREW SPRING WASHER FIGURE 4 5 MODULE REMOVAL AND INSTALLATION 4 11...

Page 213: ...ntact is made with the casting base 4 19 Brake Assembly Removal and Installation Figure 4 6 a Remove the top cover as described in paragraph 4 14 b Disconnect the yoke connector 9 c Remove the brake n...

Page 214: ...ING 1 WASHER I MOTOR MOUNTING SCREW J PULLEY 1 CD SPECIAL NUT MOUNTING SCREW 2 t jlb _ SPECIAL NUT HUB 7 J1 ARMATURE SPRING 4 PULLEY SCREW BRAKE ASM CONNECTOR CONNECTOR YOKE MOUNTING FIGURE 4 6 BRAKE...

Page 215: ...bushings washers 1 7 spring washers 1 8 and motor mounting screws in this order at the four points I Install the brake assembly as described in paragraph 4 19 and adjust the gap m Replace the belt n...

Page 216: ...lace the bottom and top cover 4 22 Spring Earth Assembly Removal and Installation Figure 4 8 a Remove the bottom cover as described in paragraph 4 15 b Loosen the two spring earth mounting setscrews 2...

Page 217: ...t sink cover 23 h Remove PCB SVU 2 PCB SVL 3 PCB PRC 4 PCB CNT 5 PCB DTC 6 and PCB ACD 7 i Remove screws 11 and nuts 16 and remove the card cage assembly 1 out of the bottom of the drive j Place the n...

Page 218: ...BKP J3S BKP J2S _ SENSOR ASM PCB SVU PCB SUL PCB PRC PCB CNT p BA C HEAT SET SCREW DUCT SCREW CD CARD CAGE ASM __ NUT _ SPRINGWASHER WASHER PLASTIC WASHER 0 1161 FIGURE 4 9 CARD CAGE ASSEMBLY REMOVAL...

Page 219: ...EAR PANEL MOUNTING SCREW 6 __ NUT AIJ FINGER GUARD MOUNTING SCREW 2 __ FINGER GUARD FAN MOUNTING SCREW 2 J GREEN l MG TERMINAL TABLE CD POWER SUPPLY DAMPING RUBBER SET SCREW I CABLE COVER POWER SUPPLY...

Page 220: ...remove the power supply h To install the power supply through the bottom of the drive without removing the rear panel proceed as follows 1 Place the power supply through the bottom of the drive and m...

Page 221: ...ion Figure 4 11 a Remove the top cover as described in paragraph 4 14 b Remove the data head and servo head as described in paragraphs 4 1 6 and 4 1 7 c Remove the R carriage cover 17 shown in figure...

Page 222: ...MOTOR COIL SENSOR ROD R CARRIAGE ASM _ WASHER E TYPE I i STOP RING SPRING WASHER WASHER 3 SPRING SUPPORT h FIXED RAIL SCREW 4 LOAD SPRING _ MOUNTING WASHER u SET SCREW 2 LOAD RAIL FIXED RAIL MAIN RAI...

Page 223: ...d Remove the bridge assembly 15 shown in figure 4 15 e Loosen the spring support 6 and remove the load rail 2 f Remove the fixed rail mounting setscrews 4 and the fixed rail 3 g Dampen a Kimwipe with...

Page 224: ...and fit the head moving cam 1 shown in figure 4 12 between the data head and servo head Move the R carriage assembly forward again so that the spring loads of both heads will be applied from the head...

Page 225: ...stall the new linear motor making sure that the motor matches the two guide pins on the casting base f Tighten the four screws described in step d from the back of the casting base tighten the GND ter...

Page 226: ...sembly is mounted on this solenoid mounting plate g Remove front door mounting setscrews 1 and remove front door h Disconnect solenoid assembly connector PJ3S 10 from PCB FTP i Remove the wiring bands...

Page 227: ...graph 4 10 v Install the front panel and top cover 4 34 PCB FTP Removal and Installation Figure 4 13 a Pull out ID plug 11 b Remove the front panel c Disconnect solenoid assembly 8 connector PJ3S 10 f...

Page 228: ...d connectors Fasten the PAU cover together with the jumper wire from PCB PAU to the bridge assembly and fixed rail Install the top cover PCB PAL Removal and Installation Figure 4 5 Remove the power su...

Page 229: ...ead write and servo adjustment procedures are provided in paragraphs 4 49 through 4 51 4 39 Head Alignment The sealed fixed module does not require head alignment If any component in the sealed fixed...

Page 230: ...e 1 is briefly explained For details see figure 4 16 The head adjusting track is prerecorded on track 404 Tolerance checks are performed on cylinder 008 and cylinder 800 There are three tracks 015 397...

Page 231: ...L PCB PAU QID_ PAU COVER BRIDGE ASM R CARRIAGE COVER v SAFETY SCREW SAFETY STORAGE HOLE IJ CD R CARRIAGE HEAD ADJUSTMENT HOLES n DATA HEAD MOUNTING SCREW ADJUSTMENT ARM SUPPORT ARM WRENCH 4 30 ADJUSTM...

Page 232: ...THRU 001 AC ERASED DISK 0 0 0 1168 FIGURE 4 16 CE CARTRIDGE DATA SURFACE LAYOUT j Connect the CE exerciser as described in the Exerciser Manual k Connect the twisted pair cable attached to PJ1 of the...

Page 233: ...en adjusted Never readjust them NOTE The degree ofoffset determines which ofthe ten light emitting diodes on CEC PCB will light CR20 Less than 32 p m to 8 p m Offset toward even side CR19 32 p m to 8...

Page 234: ...go Check which LED lights when on cylinder 800 Record LED number for reference ah LED s 15 16 or 17 should light when steps ad and af have been performed Otherwise repeat steps V through ah At cylinde...

Page 235: ...ead some of the PCB s have signals which must be confirmed and if necessary readjusted The test points to be checked the variable resistor RV to be used for adjustment and the required adjustment data...

Page 236: ...been replaced conduct Tests A and C c If the FTP PCB has been replaced perform the following steps 1 Check the door lock The door must be unlocked when the main circuit breaker is turned to ON 2 Cond...

Page 237: ...e sure that heads have been unloaded If AC power input is cut off during head loading immediately retract the carriage Do not use the CE cartridge NOTE Only the heads on the upper positioning canridge...

Page 238: ...ol Voltage Use exerciser to load heads Connect oscilloscope to TP29 and adjust variable resistor RV2 for 1 5 VDC c Write Current Connect oscilloscope to TP33 and perform write current adjustment as ex...

Page 239: ...window transition to the 7 5 V level of the data pulse negative transition f Data Demodulator Window Data Pulse Use exerciser to load heads Connect oscilloscope channel 1 to DTC 6E03 and channel 2 to...

Page 240: ...erform an alternate seek between tracks 000 and 004 2 While monitoring TP9 with an oscilloscope adjust variable resistor RV2 for a reading of 8 V p p as shown in the following illustration J f TP9 8V...

Page 241: ...roller The firmware does nothing other than light the indicators for the above mentioned faults A voltage fault is detected by the hardware which lights the proper indicator to display it The subseque...

Page 242: ...Write fault conditions are as follows 1 Write current without write gate 2 No write data during write 3 Low write current during write MULTIHEAD DSB 1 Indicates that a multiple head select has occurre...

Page 243: ...thin During soft retract 2 seconds 11 Not Used 12 No Servo Track U No AGC error status just before first During first seek seek or no AGC OK within 500 msec 13 Not Used 14 Seek Timeout U Seek does not...

Page 244: ...tected During seek 17 Nonexistent Cylinder Cylinder address sent by Tag 1 is At interruption by Tag 1 Address U larger than 822 NOTE Dual model onlv 18 Actuator Overvelocity U Cylinder pulse occurrenc...

Page 245: ...re 0 volts The overvoltage overcurrent indicator lights if any abnormal condition is detected in the power supply The REMOTE OFF indicator lights if an overtemperature or overcurrent is detected on th...

Page 246: ...SECTION V PARTS LIST...

Page 247: ...ly Side Frame Left and Right Assemblies VCM Cable Assembly Receiver Assembly Front Door Front Panel and Control Panel Assemblies Rear Panel Assembly and Card Cage Assembly First Filter Assembly PAGE 5...

Page 248: ...877 812 811 887 I1 877 890 892 877 f 111 6 1 891 5 2 FIGURE 5 1 COMPLETE ASSEMBLY VIEW ONE...

Page 249: ...t 1 2 3 3311918 01 1 830 Power Supply 120 V 60 Hz Lot 4 3312596 01 1 830 Power Supply 230 V 50 Hz Lot 4 3312597 01 1 834 PC Board PAUA Pre Amp Upper Lot 1 3308793 01 1 834 PC Board PAUB Pre Amp Upper...

Page 250: ......

Page 251: ...1 ITEM DESCRIPTION AEFERENCE PART NO QTY 893 Fuse 250 V 0 5 A Not Shown 3312287 01 893 Fuse 250 V 0 25A Not Shown 3312287 02 894 Relay K3 Not Shown 3312019 01 895 Spring Earth Not Shown 3311988 01 896...

Page 252: ...879 853 855 858 i 881 __ 822 801 874 878 5 6 FIGURE 5 2 COMPLETE ASSEMBLY VIEW TWO...

Page 253: ...3311987 01 1 827 Servo Head 3311967 01 1 828 Data Head 3311968 01 1 829 Drive Belt 60 Hz 3311985 01 1 829 Drive Belt 50 Hz 3311986 01 1 831 Relay Assembly 3312645 01 1 833 Heat Sink Cover 3312646 01...

Page 254: ...oard ACDB Current Actuator Lot 5 3309583 01 1 843 Microswitch Mount 3312647 01 1 844 Nut Plate 3312648 01 1 846 Collar 3312649 01 1 847 Plastic Washer 3312655 01 4 849 Sensor Assembly 3311995 01 1 850...

Page 255: ...COMPLETE ASSEMBLY VIEW TWO Reference Figure 5 2 ITEM DESCRIPTION REFERENCE PART NO QTY 883 Screw 885 Screw 897 Bobbin Assembly Not Shown 3312017 01 1 898 Pack On Switch Not Shown 3312029 01 5 9...

Page 256: ...5 10 812 847 838 8 842 877 868 847 838 FIGURE 5 3 DECK ASSEMBLY...

Page 257: ...14 Washer 2 815 Collar 3312688 01 2 816 Seal Plate B 3302689 01 1 817 2nd Filter Gasket 3312695 01 1 818 Front Guide 3312696 01 1 824 Main Rail 3312697 01 1 825 Fixed Rail 3312698 01 1 826 Load Rail 3...

Page 258: ......

Page 259: ...5 3 ITEM DESCRIPTION REFERENCE PART NO QTY 869 Screw 870 Screw 873 Screw 874 Screw 875 Screw 877 Screw 878 Washer 880 E Retainer 881 Washer 883 Nut 885 Bracket 3312727 01 1 886 Tach Coil With Connect...

Page 260: ...5 14 SIDE FRAME L ASM SIDE FRAME R ASM 804 810 FIGURE 5 4 SIDE FRAME LEFT AND RIGHT ASSEMBLIES...

Page 261: ...EMBLY 3312669 01 1 801 Side Frame L 3312728 01 1 802 Spacer 1 804 L Bracket 3312735 01 1 805 Front Panel Support 3312736 01 1 809 Screw 810 Screw SIDE FRAME R ASSEMBLY 3312675 01 1 801 Side Frame R 33...

Page 262: ...5 16 801 FIGURE 5 5 VCM CABLE ASSEMBLY...

Page 263: ...MBLY VCM Flex 3312036 01 1 801 Cable Support 1 802 Terminal Block 1 803 Insulating Bushing 3 805 Conductor A Gnd 1 806 Conductor A Coil 1 807 Insulator A 1 808 Terminal T 2 809 Terminal L 1 810 Insula...

Page 264: ...5 18 840 FIGURE 5 6 RECEIVER ASSEMBLY...

Page 265: ...12759 01 2 812 Rail 3312785 01 1 813 Plastic Washer 3312786 01 2 816 Rail 3312787 01 1 817 Stopper R 3312788 01 4 818 Bearing Shaft Assembly 3312789 01 2 819 Pin Assembly 3312795 01 2 820 Cartridge Gu...

Page 266: ......

Page 267: ...RECEIVER ASSEMBLY Reference Figure 5 6 ITEM DESCRIPTION REFERENCE PART NO OTY 846 Washer 4 847 Screw 1 848 Nut 1 849 Screw 3 5 21...

Page 268: ...CONTROL PANEL ASM FRONT PANEL ASM FRONT aOl 5 22 FIGURE 5 7 FRONT DOOR FRONT PANEL AND CONTROL PANEL ASSEMBLIES...

Page 269: ...01 1 807 Solenoid Mount 3312826 01 1 808 Spring 3312827 01 1 811 Cover 3312828 01 1 812 Cable Clamp 1 813 Screw 2 814 Screw 1 815 Screw 1 CONTROL PANEL ASSEMBLY 3312179 01 1 801 PC Board FTP Mount 331...

Page 270: ...REAR PANEL ASM 801 CARD CAGE ASM 5 24 FIGURE 5 8 REAR PANEL ASSEMBLY AND CARD CAGE ASSEMBLY...

Page 271: ...n Assembly 230 V 1 804 Fan Assembly 120 V 1 806 Finger Guard 3312868 01 1 813 Screw 2 CARD CAGE ASSEMBLY 3312629 01 1 801 Card Cage 3312845 01 1 803 PC Board BKPA Back Panel Lots 1 2 3 3308783 01 1 80...

Page 272: ...t06 8b5 804 _803 5 26 FIGURE 5 9 FIRST FILTER ASSEMBLY...

Page 273: ...LY Reference Figure 5 9 ITEM DESCRIPTION REFERENCE PART NO QTY 801 First Filter 3312179 01 1 802 Pre Filter 3312026 01 1 803 First Duct 3312848 01 1 804 Jumper Wire L 70 mm D 3 mm d 3 mm 1 805 Screw 1...

Page 274: ...SECTION VI MAINTENANCE DRAWINGS...

Page 275: ...able 6 1 TABLE 6 1 LIST OF DRAWINGS Title Dwg No GENERAL Block Diagram Back Panel Signal Connection Table SCHEMATIC DIAGRAMS Servo Control Upper SVUB Servo Control Lower SVLB Processor PRCNB Control I...

Page 276: ...J K flip flop K input to J K flip flop Output of flip flop monostable register etc Q 1 when being set Output of flip flop monostable register etc 0 0 when being set Connection to the external R C elem...

Page 277: ...nate 83 4 connections l on sheet 4 one is in 83 Signal Name Connector Pin rr DUNSAFE 100 PJI 29 PJ3 29 ON PAGE CONNECTION H G 4 3 2 OFF PAGE CONNECTIONS Pin location of board connector OONCYL L 100 D...

Page 278: ...B A equal to B A B A is greater than B A B A is smaller than B Schmitt trigger input DCDR Decoder OFF D type flip flop JKFF J K flip flop MON Monostable COMP Comparator MUX Multiplexer data selector...

Page 279: ...nal which represents the ON CYLINDER status of the LOWER module 3 SERIAL TAG State character a Active low level 1 Active high level The state character shall be a if the signal has true significance w...

Page 280: ...nverters Hex inverters Hex inverters O C high voltage Hex inverters O C high voltage Quad 2 input AND gates Quad 2 input AND gates Triple 3 input NAND gates Triple 3 input NAND gates Hex Schmitt trigg...

Page 281: ...E F F G UHtfSS OTHERWISE SPECIFIED SIGNATURE Ool TE AMP EX I MEMORY PRODUCTS OIUEHSIO S AilE IN INCHES U D OIlAWHIIT DIVISION INCLUDE CHUIICALLY PPL EO OR PLATED FINISHES CIIKIIY BLOCK DIAGRAM 1 tPLct...

Page 282: ...ER BOX m _ e 1 f 1 P I t t I I I II 1r JMMI Ir IPJ I 24V E START RELAY MECH BRAKE L J i 10 24V 1 12 t 24V E RETRACT U RELAV CD N 7 1 51 53 Z m ACOA PJ 1 Sarc L 0 I c I CD ROT SENSOR EJI I PAUB PALB A...

Page 283: ...THellWISE S ClflfD 51GIf uUII DATE AMPEX I MEMORY PRODUCTS DIMENSIONS AlliE 1M INCHIS AHD ClIIA Y DIVISION INCLUDE CHUUC t 1 LYAPPL1EO Oil PlAUD FfWISHES CHII 8 1 t lct lCI I NO 0 0 BACK PANEL H ENGII...

Page 284: ...I WRDELAY 000 9 77 24 25 DlBIT5 U 100 11 26 I DVLTFLT 100 26 I 6MULTCH P 9 95 25 Z6 DAGCER U 000 11 26 I DlBlTS1J 100 1Ji 5 I DAGC CEFlUOOO IH6 DVLTFLT 100 11 2 I 6V 9 94 26 27 INDEX 000 1 28 I FSL po...

Page 285: ...rim mf h Al T roJUl STAG IW1IlO lInlll M T nPIUJ W 1 J DAnDn toTAr nF n_ fY _ i llSfcr m 77 RAmI AON rMlDC J _ 1M _ ICAno _ 1 YYln L CAne rr J IP W ISI n 1 OOn l Nl _ r _ rmn _ _ l i rF no1 1 1 Inn I...

Page 286: ...G I 44 69 941 8V ______ 1 20 AVEl0CITY G I 45 sPINDL 000 0 70 95 21 46 ACT DR IN G 0 71 DsECT JH L 000 I 96 22 DRETRACTED I 100 0 47 RJIF UO 1110 I 72 97 5V I 01 I I I I I I I I I I I I I I I I I I I...

Page 287: ...L DIBIT 000 o 14V M IC59 6 14V 2B 28 5 11 51_ _r6 3036 5 __j 3036 3 01K 1 R66 lOIK 1 1 R70 3 01K 1 1 R67 lOIK 1 R69 4 R162 lOlK 1 1 5VAUX R71 2 0K 1 5VA JX R66 2 0K C26 0 15uF R173 lOIK 1 1 DSAMPLE EV...

Page 288: ...332K 1 14 CoMP 5V 33K 9 09K 1 0K R38 R29 1 1 1 1 1 3 32 RC R 30 2 GNO c o 14 13 12 11 1Jo RGAIN SEL 3 U 100 4Bl 6 7 4 5 RGAIN SEL 2 U 100 4Cl 3 RGAIN SEL 1 U 100 4Cl REG 1174 A84 9 LOO 8 9 CK 2H 2L V9...

Page 289: ...1 11 9 RI36 RSO L u l J 33 ffll m OL V 151588 02B22 2 TPI3 1 0V Tv CRIS CR14 o OI F AlOO 2SV_ 0 022lJf FI SV I I I JU J J I I 1 IF AIS SVL BIS SV 18 2K 14V A07 A08 n v N tt G ICS6 1 VI 33go 45 V7 8 5...

Page 290: ...PRC C38 5011 em OFINE U IOO A39 PRC C40 5011 le44 6 34K 1 el R87 5 1IK AVELOCITY ooo 1 4Bl1 R89 CiiC IC34 I A64 FONCYL U OIO 1 CNT 064 3CIl 5V A9 ARETRACTED 100 I t510 PJ2 9 R63 IK R65 I t E G 11 SHEU...

Page 291: ...S V 6DCO 6CCOlL 4E oFF 6BCO J IC25 6 IC42 6 IC41 IC40 ICIS LO 4 6 03 Q3 11 wo S 03 Q3 5 03 03 5 02 02J iFF 3E 1 4 02 02 13 4 02 Q2 3 01 QI L074 Jl O 3 g614 3 01 Ql 5C9 E25 n 10 00 QO 00 QO _13 LOOO 1...

Page 292: ...e 16 DDATZN OOO 0 41 66 91 AHEAD OUT G I 1 7 DOGB OOO 0 42 ACURINT L I 67 AACT DRIV L G 0 92 AHEAD OUT L IOO I 18 DAGCER LIOOO 0 43 CVLND LiOOO 0 68 93 19 DONCVL L IOO 0 44 69 AACT DRlV L lOO 0 941 8V...

Page 293: ...B89 120p 220p II R21 PAL PJI 38 3G1 B90 L1 L3 C 11 1 I 68 2 2fJH l 2pH 0 15 6 8K I I VREG PAL PJ3 35 4D1 B94 8V T 1 21 908l 14V SVU A94 C64 lC9 V C I 133 _ CoM 1 E c o l Z Gl A F c JI_ G OI HSIOHS AA...

Page 294: ...VU A75 601 I 4 I IC4 G I SVU A23 ZCll BZ4 DO OIBlT U ooo 13 LOO lZ I V7 SVU A25 ZB11 B26 D1BlTS U 100 l VI 2 I 3 4 I 5 I 6 AI 14V TJ RZ17 RZ18 07 13 I Z 5 K Ii 9j 1 OFF RZ04 gI72 LD74 06 1Z 100 I 1 fM...

Page 295: ...4 15 0 CYLND L OOO 4 4 jIDJ i 2D 5 6K 9 2 10 3IDl 12 11 1 3 13 2D 12 3H 13 2 5 3F 4 1 8 O 6N 5C 11 13 2 1 13 6N 5 2 7P tffiD r S011 1 r S011 1UJ 1M I I I I L_ J L 12 10 J 12 10 UNLESS OTHERWISE SPECif...

Page 296: ...L2 110 10 AS PRC CS2I4Fl1 BSI RDlFL1 110 11 A6 PRC C50 4F11 B49 D1FLO 110 12 601 SV R7 60ll oIl O 601 1 0K 1 601 5VAUX 6E1 l 6Ell J 4Bl0 AVELOCITV L 010 FWO CNT D62 3C11 B62 _F_O N C YL L 0 10 Gf TjP...

Page 297: ...Vl V2 V3VI V5 V6 V7 I 91 210 IC3 7 B1S 6 R86 8 I GAIN SELECT L 4A2 14V 5 _j 2 _t _T_ tR 1iKi S V_F_AU_L_T B32 OT C E3217G7 LV I aSK 1 1 I 4 C31 2P C61 68 72 74 76 B09 86 108 B10 14 V 0 022 P TP3 3 VR...

Page 298: ...l00 62 IRDIFL6 11Q 0 I 87 IDBRAKOF OOO 13 1 24V 38 IFREVS U Ol0 63 I RDIFU8 110 0 I 88 IDRETRACT U OOO 14 1 24V 39 IDWRTFLT L 100 64 I RDIFL7 110 0 I 89 I RNOCART 010 D 15 40 I DFINE U 100 01 65 I RD...

Page 299: ...tialize 30 Run DEBUG MODE 31 Ground 32 not assigned 33 Exerciser Mode 34 Vee 5V IG 10 PJl 21 PJI 22 9 PJI 34 PJ1 09 PJ1 10 PJI 19 PJI 31 8 7 6 CLOCK 100 111 10 cLOCK 010 4 3 JC I 3G3 1 303 1 3E3 1 3E3...

Page 300: ...C71 CNT 07 81 cn 111 0 AO 4 CAncn I1n A0 3Q 3M 2C g 3 N AO 4 P o Y JC70 CNT 069A i61 el CS RE 4 N 1 R VCC f Ie PO VPP 1 PO PO WE VCC L24 VPP VPP CSI GNO CSI GNC 7HStI VCC VCCi 2 vcc 7Hs P J t1L 7HsM I...

Page 301: ...lP nln 074 D1 01 I I SK 00 00 nil I nn n Q 0 PR Q I Wf IL D DRvR ifCK Q S uC L244 LR fDC 3F9 SVI MO D BQ ow n I CLR 4E C0 in 2CI 01 7 IDa 9 03 0 7 01 7 on nl I JC64 n1GlB6 10C 1 D2 02 lniR M nl JC62 O...

Page 302: ...l Dl 01 6n O 1M enl I In r l DO 00 I CNTR I DRVR U93 J L244 hftUC I 11 g mew nnni m M nn 9 OJ 03 om Inn 2 I 7 I1n JC61 0 i D2 02 I n JC59 S 01 M D1 01 en In 4 1 JC57 0 JJ ILIlJ I t lLIlJ 41f H l lJDO...

Page 303: ...Ol0 6M l0 3E3 RDI01 000 ReI 1 010 JCl3 CNT Dl3llCl TAG1 OlO JC67 CNT D68 6Hl l F 6 D c B Qill IE II A E _ J LO O_ 7Dl 0 _ J 100 7Dl0 _ _I 100 7G 5 _ _I 100 7F 5 i VVM rL 1 FML I HU LTH 1 FWHrLl _ DWR...

Page 304: ...99 GR01J 0 rGN1i l J ClOD C 1 J C 0 1 33 LI6V_ I JC02 JC97 F OV I J C 98 I y 8 J C 1 3 24Vl 2S JC 14 JC3 mID 4 7 F 3SV F O E ll I O DRAWN BY I UI V IVrf OR PLHED FINISHES CH BY TOl 2 PlC PlC ANG OFT A...

Page 305: ...PJ2 F R A CABLE INTERFACE THE TERMINATIllR SIDE IS PJ2 PIN SIGNAL PIN 51 GNAL PIN S I G NAL PIN SIGNAL 1 XTAGI OOO 31 XTAG 1 100 21 51 E 2 XTAG2 000 32 XTAG2 100 22 XUN ITsL OOO 52 XUNITsL loo I 3 XTA...

Page 306: ...__ _ FH f L JW 75 07A 11 rm l PJ2 22 u ILa A StrTO OOO LO PJ2 52 10K WIL7Jl nl ililll IlL T IllC O OL r f4P 6N 1 JO I E PJ 27 n nno 4701llR Q 0llNIT3 00 I PJI 57 liN nn A W TT nno PJ 26 INIT 00 B w J...

Page 307: ...LQ74 J l1 JillL SES PJI 33 47011 L P ll Jc l I H l PJ 1 03 4 BSi3 SHS PJ2 33 K DFOO1CJ l PJ2 03 5V rrh7 4 5 v 2B4 J QJ JIl L l lJ I ILH 4 B4 ilL4 hO I U_ _lL L lilloL _ L 4C4 I E e o F S08 DIQlBO 100...

Page 308: ...D17 Dre E18 6F2 IE gRY Q10 J024 OIC E23 4G3 G tRcvR 75107A 1 4 3 SV F G 11 PJ1 20 PJI 50 10 9 l f l 8 2C8 QPIJlPO 100 OillUU i JllJJ L l IJl Y I u l1lw Ul L i l illm2 lL _ t PJI 18 I PJI 48 lIL QQjL...

Page 309: ...jo no n J E oon F Tt nno LL L020 6 3 JD32 T Inn 5 004 f n T1 n n i l O nFf T nnn L004 n AHIT 11n PRC C27 680 2 1 R 04 on I 4p H JD22 OTC E2l SB2 L 4A8 I F 1 r LO 20 R 51 OFft T 010 JD30 T n n L004 T _...

Page 310: ...5 p 2 tFLTFLG 306 3 3CIO 1 14 Mr 01 15 1M 503 5 1 1 2C3 Loo811 OCOR 40 2 5 F 13 7 H 3CIO 4 L138 OAnoo 110 E2 1 AM 1 tOCTr nM LO OCTr A 10 3011 0 Q1 LOoo 8 lrY cn 0 OM p 3C6 6 OCTn AM P 3E6 4 o In MA 2...

Page 311: ...CE THE TERMINAT0R SIDE 15 PJ 2 PIN SIGNAL PIN SIGNAL PIN 51 GNAL PIN SIGNAL I XTAGI 000 31 XTAG 1 100 21 51 E 2 XTAG2 000 32 XTAG2 100 22 XUNITSL 000 52 XUNITSL 100 I 3 XTAG3 000 33 XTAG3 100 23 XUNIT...

Page 312: ...TS lp DAE APPLIED CHII T I DIVISION TOl 2PlC JPLC AHG I I I I 1 0 UNIT SELECTION RE DO TU l HTOH H DGES n 0ACA M TERI L sin L O 11l H2 HO_ I OF0010P4 00 i lllft m 6E3 7 RLJPPFR J I LOSI 8 I A tOMAKH j...

Page 313: ...6CS 2 207 OUPPFR i 010 I T 4 JJ1J 4 I L 2 FONCL li OlD J064 9B3 STCMNQ 000 2 FSEEKL 100 EI I I 9 R 0 S 90r SFs21 SVU A64f 0l IE p8 1 1 1 983 _ 2 983 9B3 S0NC I 000 6Cs 2X7E2 IF FI I L 4J L L 010 1 J...

Page 314: ...50 OBIT5 100 13 n J044 PRC C43 6E BI I 2E6 OPCUP2 100 J nR T1 1nn L An 0 J020 DIC E20 581 IB Oi I 5C3 08114 100 rP fLJCLR DOl r J046 PRC C45 GE 785 6 11f1 el I Ie fL _l Jll f IL l llLU _ 9C6 503 DB 3...

Page 315: ...E 2 6A2 9C 3 U n nJ 7 Inn 7 0 M 1 0 O _ 1 I o nl 1M LO nuc n n n I L004 J noOT n n J017 1 17 nl Inn 4J J061 W 6 OTC E18t6F7 f T OTC E62 REG L 7E2 LOO 2 uCAn Oln L174 4J J063 roo l 1 E 3BS u Anl nn q...

Page 316: ...T PJI 47 10 2 h 1 7 x0 M lNO 000 PJI 17 PJI 46 PJI 16 PJ 2 47 PJ 2 17 207 O J I XlU PJ2 46 2B7 OSFICTEO 112 PJ 2 16 EI 60 IE 307 1lli 2D h I l lll J 045 OTC E46 2E8 3C7 F0NCL l j lOa L002 1 nc KFNn J...

Page 317: ...CLR 7P 5 4 3 5 A3 UI JI I I IUU 5 4E2 ltWFST 110 6 B E D 5 12 4 J 2 N 1 4 Q 11 4 3 6 1 5N 5 6 J el 8 1 6 P 4J 11 1 3 W 3 12 6 P D Z Gl z 8D5 DWPRTC 020 INTFL T 100 13 5 6 l 14 1 10 a 111 5B5 RHDL5 10...

Page 318: ...3 4 5 I 6 7 8 9 10 I 11 I DRAWING NO La 2E6 9A3 tp AI 9A3 IA 9E3 Q 0BJ PR Q 5 9C3 100 D CK Q6 F CLR P I V I U I I JD58 SVU A5BI2DI 2M 61 0 1 I F 5 L 4 pO 963 E0EST IJ llO JD60 SVU A60 2DJ 16 963...

Page 319: ...5D7 ZHEAD3 100 1 3 7E6 F0FCWL 100 11 I YI 6 Al RCYL3 100 10 1 r II flf e IQ Q E7 F0FSTL 100 30 5D7 ZHEAOl 100 3 7D6 FINTFL 1 o vr 100 6 lOY 1 1 T JjjWQQ 38 C7 6 9 10 I 11 6 7 8 DRAWING NO I REV MARK...

Page 320: ...OOO 19 DREDGT 010 I 44 69 94 6V 20 45 70 DCEO U 95 6MULTCHJP 21 DFAULT 110 I 46 DSK END L OOO I 71 DWPSWU 100 I 96 4V 6 22 DWTGT 010 I 47 72 DCEO L 000 6 97 5V I D 2 1 DBIT 8 010 I 48 DSK END U 000 I...

Page 321: ...3GI WRCLK ooo 3GI I fI9 36MHZ 000 3GI Vc JKFF 5112 I PR J 0 5 2 CK 4E_ r J 5 LR Q 6 ffi 5A6 DWRG IOO Vc OFF 5074 6 2 5 3 IC71 IRev EI 10 PR QI9 RWDT 100 3F2 OWR DATA ooo 5 6 II 8 W 9 12 0 40 PJ1 8 DWR...

Page 322: ...4F 6 soo 8 i01 o j DC MP EARLYiOOO E 205 RWOT 100 1 4 0 o REG 9 S175 5B 2E7 WRCLK OOO 2E7 1 5A6 OWRG l00 206 MH 0 4 1 G 5 J M 12 IF 8 1 1 H 5 J 9 1 G 7 C J 9 12 1Olit 8 7 C l W IG 13 s 7 F _ 4 5 N u N...

Page 323: ...N PEX DIVISION OR PLATEO f lISI ES CHKBY TOL 2PlC3PLC ANG I I I I I 0 READ PLO DATA DEMODULATOR RE oov OeTu L NTDH N OGES BV DTeA H T 11E CODE IDENT NO 7 7 A 6 TP 1 2 3 4 5 6 7 8 9 1011 TP14 1312 6 5...

Page 324: ...T 100 PAL 23 3FO 5V A495 018 R125 5 IK g f IREY EI A495 5 o R126 5V IREVEI 20 206 7Ell DFLT VOLPOOO 5V 5AUX 5V r J N 9 t et 019 I I r I 10 A4 5 6 6 _ q o C 301 uUr r UNl UUU I 7CI 7A1 707 I VU L uul 7...

Page 325: ...033 2A8 E34 tRAP MD OlQ 1 1 1 586 UHUb lOU 1 CNT 017 4010 E18 TP36 15 Vpp d f NSO a C13 DATA JOolf_ PAL 3cY J AREA 6800P llg a _ PAL 311389 BE C12 EM A AI DOTA 0001 6800P F E g Z Q z 9 c D G B O A 58...

Page 326: ...1 0 E95 fl L 25 432 24mA TH E55 PAL 161302 oS a t C I 1 L02 E38 PRC C37 6 F2 I lOO E53 PAL 15 302 l 15 U 1 wfi I 3 pMlTIHQ L 1011 E36 PRC C35 6F2 II glo 3F Ie E42 PRC C41 6F2 E40 PRC C39 6F2 4 4 8 ANA...

Page 327: ...2 ACURINT L 0 67 MeT DRIV L G I 92 18 3 68 93 19 OVER TEMP 0 69 AACT DRIV L I 9 20 5 70 95 1 6 ACT DR IN G I 71 96 22 7 72 97 5V D 23 8 ACT DR IN U l00 I 73 98 5V I 2 9 7 99 D GND 25 50 75 100 D GND...

Page 328: ...5 1i l 1k r 1 7 1 1 0 iI W _ f 4 1t I 1 J Dt teo R42 7 1 5K t R43 TP4 ATC DR I N PJI m M I r _ 0 OJ I F48 STU A48 5B11l F46 ATC DR GND STU A46 5Bll E D C B Oi 2 F G 11 SHEET Z O 2 R36 510 FI9 OVER TEM...

Page 329: ...OATA OOO 93 19 DMFM WDT OOO 44 19 5V 94 20 CDSEL OOO 45 20 A GND 95 21 RHEAD 4 010 40 90 22 FHSEUOOO 47 97 D 23 ACURRENT 100 48 9A I 24 DWRDELAY O 49 99 25 6MLTCHIP 50 100 pj 3 SIGNAL SIGNAL PIN PIN...

Page 330: ...000 5 74LOl 6 1 PJl 20 2 754S 3 IC3 24 C25 7545 3 p R29 R 28 1 LQi 2 e I te 698 698 J 74K 1 O R31 174K 1 I l l R lj1J R33 C395 C395 5 1IK A LC 28 lOP 1J 81 j K fF 0 022l 1 W p9 J KFF Al l Ffl5112 511...

Page 331: ...9 C373 I K PJI 31 Q3 DTC E84 6Bl CI6 R4 R9 ZAIO 604 RlO 1 0K R3 11ft B 6 14 61 011 _ C4 R13 16 1 OK 88 7 RZ 604 ZA C373 Rll R44 C15 R5 I j AREAD DATA 100 PJI 30 lK Q6 Z40 SRI I I DTC E86 661 14 W J 1...

Page 332: ...2 19 IC9 1 COM ANALOG GND PJ 3 7 25 29 PJl 2 3 PJ2 20 4 40 8 PJ3 34 PJl 36 39 GND PJ 3 30 33 CONN I BACK 40PIN PAL 20PIN PAU PANNEL CABLE CABLE P I3 PJl PJ2 pJl B c o I E F G UNLESS OTHERWISE SPECIFIE...

Page 333: ...3b JI I B A 13 DUNSAFE 101 14 AWRDELAY 100 C 15 DMFM WDT 100 16 DMFM WDT 000 17 ACORD DATA 100 18 ACORD DATA 000 19 5V 20 A GND 0 E IE PARTS Ll lCATl0N F 2 3 4 5 6 7 IF B C 0 E F G G H J K L DATE AMP...

Page 334: ...I 14 AWRPELAY 100 rr E I I IE R15 JK 14 FJ I WI 5112 5112 PJI 4 r Ff1 PR J Q 5 PJI 15 1 LK PJ1 5 W2 PJJ 16 K 0 6 I FJ PJI 6 UCHIP IF R21 CLR LR il _ ICJ ICJ PJ1 7 PJI 19 PJI J 14V 5 IG GI PJI 2 20 RI6...

Page 335: ...0 p J A A 11 DFAULT OIO 11 86 12 DPLGIN OOO 12 87 13 READV U 010 13 88 14 READY L 010 14 89 C 15 5104 100 90 I 16 24v 91 17 24vRETN 92 18 0108 100 93 19 5v 94 20 A GND 95 96 97 0 98 I 99 100 E I PARTS...

Page 336: ...111 JK 13 CNT D86 2A9 READY U010 131 JK 14 CNT D41 ZA9 RNOCART 010 1 JK 9 PRC C89 6A9 DFAULT 010 JK 11 CNT D841 5Fl0 i GRO fP I n oL WID E c Il Z z 9 D A PJ Z ADDRESS PLUG F JK16 Z4V BKFl PJ1 16 5a EN...

Page 337: ...IT 8 000 37 XBIT3 100 62 87 B REWRITE 27 79 IS I B B 13 XBIT 9 000 38 XBIT4 100 63 88 C 14 XCABLED 000 39 XBIT 5 100 64 89 15 XFAULT 000 40 XBIT 6 100 65 90 I 16 XSEKERR 000 41 XBIT 7 100 66 91 17 XON...

Page 338: ...J I JA0050PD60 60PI N 32 5 33 4 34 3 IC2 IC9 35 36 I 37 E 38 E 6 39 5 40 4 41 3 42 2 43 I Ir 44 7 45 6 IC6 46 5 F 47 4 F 48 3 49 50 I C 5 I 52 6 53 5 54 4 55 56 2 G 57 1 58 60 1C8 2 29 h 59 UNLESS OTH...

Page 339: ...V V 4 3 MAGNETIC DISK DRIVE D Z Gl z 9 o c A 2 3 4 5 6 7 B C 0 E F G H J K L M N P Q G E 11 SHEET I OF 2 PJ 6 PJ 5 9 CONN IS LOCATED TO LOWFR MODULE SEE PALB LOGIC DIAGRAM PAGE4 8 UNUSS OTHERWISE SHCI...

Page 340: ...I F I G AMPEX I UNless OTHERWISE SPECIFIED SIGWATUIIE OAfE MEMORY PRODUCTS OlMEN510HSAAEIHINCHfSAHO OIlAWNBY DIVISION IHCtUDECHEIIIICAtL APPLIED OR PtAHDflHISHES CHKIIY I let lel lANG OFTAPPD CONNECT...

Page 341: ...HEC IREVISED I PAGE I DATE O D KEff BY 1 I I I I I I I I I I I I 1 11 ffi 1 1 l 1II lY 1 A B c o I E F G UNLESS OHIEIlWISE SPfC f ED S NUUAE DATE TMEMORY PRODUCTS O E l o DRAWN BY AMPEX DIVISION POWER...

Page 342: ...T u u u u u UJ z 1 a a a a a 00 0 l l 0 ex a 0 0 Z U U U o 0 o 0 2 N N 3 4 I I BLK tVLT 3 I r BLU BLU 4 5VAUXL __ OlNrT r O lflt coo2 J J PJ2 4 6 4 6 PJ3 D ORu 8 10 15V AUX 8 10 I 5 5V AUXD 16 18 20 1...

Page 343: ...I G I SIGNATURE DATE AMPEX I MEMORY PRODUCTS UNLESS OTHEllYllSE SPECIFIED O o lENSIOHS ARE IN INCHES AND DR WN8Y DIVISION INCLUDe CHEIoIlCAUVAPHIEO OR PlATED FINISHES CHlt8Y POWER SUPPLY T t I 12PLCI...

Page 344: ...3 R3 lK Tl PJ1 1 2 I 5w22 V J 6 1 4 PCB FIL 2 3 G Fl 2 1 n D 250V 1 4A 4 3 Gf 2 FL2 o I z 9 c o A t PJ2 I 4 6 5V AUXL 8 10 15V AUX 4 6 PJ3 NM tDU1f COOOMU l 16 18 20 5V AUXD 8 10 _ O lO IPowER INTERRU...

Page 345: ...E I F I G I UHUSS Of HEllWISE SPECIfiED IGN uUllf out AMPEX I MEMORY PRODUCTS D UEH IOHSAIl IN NCHESAND DRAWloIflY DIVISION INCLUDE CHEU CALllAPPllfO OR PLUED F SHES BY LINE FI L TER 230VAC 2PlCJPlC...

Page 346: ...I G C UNLESS OTHEAWISf SPECIFIED SIG UIlE DATE AMPEX I MEMORY PRODUCTS DlflIENSIDNS AllflNllIICHES AND OllA HIIIY DIVISION NC UOE CHIEIlICALLY APPLIED 011 Pl UD FlNIS llS eNllaT t I I2PLCtPLCI I G OF...

Page 347: ...A D I E I F f G UHUSSOTHEAW SESPfC FIEO SIGNATURE OATf AMPEX I MEMORY PRODUCTS O lolEHSIDNSAREINtNCHESAND DRAWN BY DIVISION INC UDE CHUIICAllY APPLIED OR PLATED fiNISHES CH Bl 1 12PlC l 3PLC OfT APPO...

Page 348: ...E20 2 TB1 4 r h n c 0 I 1 CO l R9 2 B 200WV 15M030 C4 C6 R5 1100WV C23 J r l000PF 16WV 35WV 3W 0 18UF 50WV 2W 3 I Rl 1700JF lUF r 15 C25 lUF 1 5 1I2W R2 15FWJll Tl00WV r 10 C 15M030 I 0 18UF DCR r i 5...

Page 349: ...10 DRAWING NO 11 1l tLlJ WH I RCSKI A B Oi L MAGNETIC DISK DRIVE B c o E F G H REV A COMMENTS ISSUE APRRIOiEC DATE IOUED KED BY B I 1 I 1 r I I RE IISEDI PA GE I B I 1 I I I I I I I I I I I I k IA c o...

Page 350: ...0 1 0 oX r 3 I r TP7 14 Rl 13 24 7474 CRI 14 3 CK 1 TPS TP2 0 12 tv 0 le10 N 0 w 16WV 3 3UF w W ii 9100 h LJ i J8 Ill 10 ll01C3 n 4 00 n FrS IC3 I TP 4 r tl 4 w u IClO C3 IUNLESS OTHERWISE SPECIfiED I...

Page 351: ...I G I I UNLESS OTHERWISE SHClflEO SIGNAtURE oUE AMPEX I MEMORY PRODUCTS lllMENS OtlS ARE IN INCHES AND DRAWNBT DIVISION IHCtUOECNEloIlCAllVAPPllED all PLATED FINISHES CHili BY 1 IlPLC PLCI OFTA PD AU...

Page 352: ...I PJ 1 6 1 PJ 1 SJ I _u I F E o RS CEIEDf WVf 39 lW E ill G NOTE ALL RESISTORS ARE 1 4W UNLESS OTHERWISE SPEGIFIED G 11 SHEEt 2 Of 2 9 e 7 5 4 OUIEOISIDNS ARE IN CHfS AND DRAWN Of AMPEX I MEMORY PRODU...

Page 353: ...0 0 41 42 I DWRTFLT U l00 0 43 44 45 461 DSKEND L OOO I 64 65 66 67 68 69 70 71 DSELECTED 000 DCEO U OOO 89 90 I II 91 92 1 DUNSAFE 100 93 1 SFHSEL 000 94 I 6V 011 95 I t 6MULT1CHIP 96 1 4V o o o c 22...

Page 354: ...10 DSAMPLE CE 100 FVEN H 3N 6 ilFOR DIBIT 01 0 4011 DSAMPLE CE 010 ODD H 14V RS6 2Rl0 AMP CESIG 10 PAU C44 PJ l ACE SIGNAL 100 o l F If R137 PJ 2 2 ACE SIGNAL 000 D 15 F PAU C j L 14V 10 1 lOOK 43 5 1...

Page 355: ...5 g0 T f j J 2L10 AGC CNT 000 R30 11 9 5 so l 6 _1 I lK 4 O r 0 101K 5V 6 G 6H LED10 RED IC46 g U lOOK R28 5 I I I O m R29 gO O 1 X C D M P Jl C61A Z 0 0 IC27 m o C D CD 19 J j bJ l U 0 O l o I G I m...

Page 356: ...I I I E 03 5V I r 1 s v r I E E E 0 j E E E 99 l JJJr tOIGITAL GND 10 r E10 E E C7 E 87 6V E94 E 88 R94 DUNSAFE 10 0 E92 E 09 100 E 10 R92 6MULTICHI P E95 10 5V GI C4 10 25V R93 33 JF CDI I I I H ICD...

Page 357: ...L l00 E36 I i H I m E42 PJI 21 0 1 I I I DWRTFLT L 10 E40 I PJI 25 DVLTFLT 100 E26 1 lfn o 1 E93 000 col I I I I E 16 lco E46 DSKEND L OOO B gS END LI E48 DSKEND U 1000 B V 3 pgK NO G 011 PJ 1 1 0 1 2...

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