Ampex DFR-948 Manuals

Manuals and User Guides for Ampex DFR-948. We have 1 Ampex DFR-948 manual available for free PDF download: Operation And Maintenance Manual

Ampex DFR-948 Operation And Maintenance Manual

Ampex DFR-948 Operation And Maintenance Manual (358 pages)

DFR900 Series DISK STORAGE DRIVE

Brand: Ampex | Category: Storage | Size: 11 MB

Table of Contents

(Continued)

6
- Table of Contents
  6
List of Tables

13
- Power Requirements
  24
  - Star and Daisy-Chain Cabling
    40
  - Notes on Cabling
    44
  - Grounding
    44
    
    DC Ground
    44
    
    Frame Ground
    44
  - Sector Number Selection
    45
  - Model Selection
    45
- Operation
  45
  - Operator Controls and Indicators
    45
    
    Start/Stopswitch
    45
    
    Transition Indicator
    45
    
    Readylndicators
    45
- Sector Jumpering Assignments
  48
  - Write Protect
    50
  - Cartridge-Missing Indicator
    50
  - Fault Indicator
    50
  - Address ID Plug
    51
  - Disk Cartridge Access Door Latch
    51
  - Operating Instructions
    51
    
    Power-Up
    51
    
    Start
    52
    
    Write Protect
    52
    
    Stop
    52
    
    Power-Down
    52
    
    Remote Power Sequence
    52
    
    Fault Operating Instructions
    52
    
    Disk Cartridge Handling and Storage
    53
    
    Disk Cartridge Installation
    53
    
    Disk Cartridge Removal
    53
    
    Power Failure or Emergency Stop Cartridge Removal
    55
  - Maintenance Switches and Indicators
    55
- Maintenance Indicators
  56
- Maintenance Switches
  56
  - Power Supply Indicators
    57
  - Maintenance Switches
    57
- Detailed Status Bit Indications
  58
  - PRC (Processor) Board Switches
    59
- Theory of Operation
  60
- Input/Output (I/O) Interface
  61
  - Cabling
    62
    
    Transmitters and Receivers
    62
    
    Terminators
    62
    
    Signal Cables
    62
- Introduction
  61
- System Operation
  61
- Control Cable Signal Definitions (Ribbon Type)
  63
  - Signal Cable Characteristics
    64
  - Read/Write Cable Signal Definitions (Ribbon Type)
    64
  - Signal Lines
    66
    
    Address and Control Tag Lines
    66
    
    Individual Lines
    70
    
    Data and Clock Lines
    75
  - Data Format and Data Control Timing
    76
    
    Write Format Procedure
    79
    
    Control Timing
    80
- Major Assemblies
  81
  - Printed Circuit Board Assemblies
    81
  - Disk Module Assembly
    85
    
    Spindle Assembly
    85
    
    Fixed-Disk Assembly
    85
    
    Head Assemblies
    85
    
    Rotary Actuator Assembly
    85
    
    Air Filters
    85
  - Motor Assembly
    85
  - Brake Assembly
    85
  - Linear Motor and Carriage Assembly
    87
  - Velocity Tachometer
    87
  - Idler Assembly
    87
  - Power Supply Assembly
    87
    
    Auxiliary Power Supply
    87
    
    Input Rectifier and Filter
    87
    
    Surge Current Suppressor
    91
    
    Voltage-Sense Amplifier and Pulse-Width Converter
    92
    
    Power Switching
    92
    
    Output Current Sensing
    92
    
    Overcurrent Protection
    92
    
    Power-On Sequence
    92
    
    Overvoltage Protection
    94
    
    Momentary Power Failure Sensing Circuit
    94
    
    Remote-Off
    94
    
    Status Display
    94
- Functional Operations
  98
  - Airflow
    98
  - Microprocessor Control Functions
    98
    
    Microprocessor Hardware
    98
    
    Memory Address Assignments
    103
    
    Program Interrupts
    103
    
    Input/Output Ports
    105
- Input Port
  106
- Input Port Functions
  109
- Output Port
  117
- Output Port Functions
  118
  - Microprocessor Operational Flow Charts
    124
    
    Power-Up Sequence
    127
    
    Spindle Motor Start Sequence
    129
    
    First Seek Lower
    130
    
    First Seek Upper
    134
    
    Gain Select Lower
    137
    
    Gain Select Upper
    138
    
    Main Loop
    139
    
    Status Checks
    139
    
    Power-Down Sequence
    139
    
    Spindle Motor Stop Sequence
    147
    
    Error Disposal
    147
    
    Seek Interrupt
    147
    
    Command Interrupt
    147
    
    Seek Command
    156
    
    RTZ Lower Command
    156
    
    RTZ Upper Command
    156
  - Start/Stop Operations
    156
    
    Spindle Start
    156
    
    Sequential Start-Up, Daisy-Chain Configuration
    161
    
    Spindle Rotation Time Check
    161
    
    Spindle Stop
    161
    
    Door Latch Unlocking
    163
  - Seek Operation
    163
    
    General
    163
    
    Basic Servo Operation
    163
    
    Seek Operation Sequence
    163
    
    Servo Data
    165
  - Seek Signal Descriptions
    169
    
    Track Servo Signal (TSS)
    169
    
    End of Travel (Guardband)
    170
    
    Cylinder Pulse
    170
    
    Velocity
    171
    
    On Cylinder
    171
    
    Spin-Dl
    176
    
    Sync Data
    176
    
    Desired Velocity
    176
    
    Power off
    176
    
    Dibit
    176
  - Read/Write Operations
    176
    
    Write Operation
    184
    
    Read Operation
    187
- Introduction
  202
- Maintenance Intervals
  202
- Maintenance Precautions
  202
  - Safety Precautions
    202
  - Equipment Precautions
    202
- Maintenance Tools and Expendables
  202
- Mal NTENANCE
  202
- Maintenance Intervals
  203
- Maintenance Tools and Expendables
  203
- Preventive Maintenance
  204
  - Makeup Filter Cleaning
    204
  - Prefilter Cleaning
    204
    
    First Filter Removal and Installation
    204
  - Data Head and Servo Head Cleaning
    206
  - Cleaning of R-Carriage Rails and Bearings
    206
- Corrective Maintenance
  208
- Drive Tests and Adjustments
  229
  - Head Alignment
    229
    
    Precautions
    230
    
    CE Cartridge
    230
    
    Head Alignment Procedures
    230
  - PCB Adjustment
    235
  - Confirmation Test after PCB Replacement
    235
  - Confirmation Test after Power Supply Replacement
    236
  - Confirmation Test after Head Replacement
    237
  - Confirmation Test after Module Replacement
    237
  - Manual Head Loading
    237
  - Read/Write Adjustments
    238
  - Servo Upper Adjustment
    239
  - Servo Lower Adjustment
    240
- Maintenance Aids
  241
  - Maintenance Switches and Indicators
    241
- Maintenance Indicators
  242
- Error Status Definitions
  243
- Parts List
  246
- General
  247
- Maintenance Drawings
  274
- Introduction
  275
- List of Drawings
  275
- General Abbreviations
  276
- Interconnection Symbology
  276
- Signal Annotation
  276
- Functional Symbology
  278
- Signal Name
  279
- Digital Integrated Circuits
  280

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