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DFR900
Operation and maintenance manual
Ampex DFR900 Operation And Maintenance Manual
Dfr900 series disk storage drive
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Contents
Table of Contents
Bookmarks
Table of Contents
(Continued)
Table of Contents
List of Tables
Power Requirements
Star and Daisy-Chain Cabling
Notes on Cabling
Grounding
DC Ground
Frame Ground
Sector Number Selection
Model Selection
Operation
Operator Controls and Indicators
Start/Stopswitch
Transition Indicator
Readylndicators
Sector Jumpering Assignments
Write Protect
Cartridge-Missing Indicator
Fault Indicator
Address ID Plug
Disk Cartridge Access Door Latch
Operating Instructions
Power-Up
Start
Write Protect
Stop
Power-Down
Remote Power Sequence
Fault Operating Instructions
Disk Cartridge Handling and Storage
Disk Cartridge Installation
Disk Cartridge Removal
Power Failure or Emergency Stop Cartridge Removal
Maintenance Switches and Indicators
Maintenance Indicators
Maintenance Switches
Power Supply Indicators
Maintenance Switches
Detailed Status Bit Indications
PRC (Processor) Board Switches
Theory of Operation
Input/Output (I/O) Interface
Cabling
Transmitters and Receivers
Terminators
Signal Cables
Introduction
System Operation
Control Cable Signal Definitions (Ribbon Type)
Signal Cable Characteristics
Read/Write Cable Signal Definitions (Ribbon Type)
Signal Lines
Address and Control Tag Lines
Individual Lines
Data and Clock Lines
Data Format and Data Control Timing
Write Format Procedure
Control Timing
Major Assemblies
Printed Circuit Board Assemblies
Disk Module Assembly
Spindle Assembly
Fixed-Disk Assembly
Head Assemblies
Rotary Actuator Assembly
Air Filters
Motor Assembly
Brake Assembly
Linear Motor and Carriage Assembly
Velocity Tachometer
Idler Assembly
Power Supply Assembly
Auxiliary Power Supply
Input Rectifier and Filter
Surge Current Suppressor
Voltage-Sense Amplifier and Pulse-Width Converter
Power Switching
Output Current Sensing
Overcurrent Protection
Power-On Sequence
Overvoltage Protection
Momentary Power Failure Sensing Circuit
Remote-Off
Status Display
Functional Operations
Airflow
Microprocessor Control Functions
Microprocessor Hardware
Memory Address Assignments
Program Interrupts
Input/Output Ports
Input Port
Input Port Functions
Output Port
Output Port Functions
Microprocessor Operational Flow Charts
Power-Up Sequence
Spindle Motor Start Sequence
First Seek Lower
First Seek Upper
Gain Select Lower
Gain Select Upper
Main Loop
Status Checks
Power-Down Sequence
Spindle Motor Stop Sequence
Error Disposal
Seek Interrupt
Command Interrupt
Seek Command
RTZ Lower Command
RTZ Upper Command
Start/Stop Operations
Spindle Start
Sequential Start-Up, Daisy-Chain Configuration
Spindle Rotation Time Check
Spindle Stop
Door Latch Unlocking
Seek Operation
General
Basic Servo Operation
Seek Operation Sequence
Servo Data
Seek Signal Descriptions
Track Servo Signal (TSS)
End of Travel (Guardband)
Cylinder Pulse
Velocity
On Cylinder
Spin-Dl
Sync Data
Desired Velocity
Power off
Dibit
Read/Write Operations
Write Operation
Read Operation
Introduction
Maintenance Intervals
Maintenance Precautions
Safety Precautions
Equipment Precautions
Maintenance Tools and Expendables
Mal NTENANCE
Maintenance Intervals
Maintenance Tools and Expendables
Preventive Maintenance
Makeup Filter Cleaning
Prefilter Cleaning
First Filter Removal and Installation
Data Head and Servo Head Cleaning
Cleaning of R-Carriage Rails and Bearings
Corrective Maintenance
Top Cover Removal and Installation
Bottom Cover Removal and Installation
Data Head Removal and Installation
Servo Head Removal and Installation
Module Removal and Installation
Brake Assembly Removal and Installation
Motor Assembly Removal and Installation
Idler Assembly Removal and Installation
Spring Earth Assembly Removal and Installation
Card Cage Assembly Removal and Installation
Power Supply Removal and Installation
Fan Removal and Installation
Pulley Removal and Installation
R-Carriage Assembly Removal and Installation
R-Carriage Load Rail and Fixed Rail Removal and Installation
R-Carriage Main Rail Removal and Installation
Velocity Sensor Assembly Removal and Installation
Sensor Rod Removal and Installation
Linear Motor Magnet and Coil Removal and Installation
Solenoid Assembly Removal and Installation
PCB-FTP Removal and Installation
PCB-PAU Removal and Installation
PCB PAL Removal and Installation
Relay Assembly Removal and Installation
Drive Tests and Adjustments
Head Alignment
Precautions
CE Cartridge
Head Alignment Procedures
PCB Adjustment
Confirmation Test after PCB Replacement
Confirmation Test after Power Supply Replacement
Confirmation Test after Head Replacement
Confirmation Test after Module Replacement
Manual Head Loading
Read/Write Adjustments
Servo Upper Adjustment
Servo Lower Adjustment
Maintenance Aids
Maintenance Switches and Indicators
Maintenance Indicators
Error Status Definitions
Operator Indicators
Power Supply Indicators
Operator Indicator Error Status During First Seek
Parts List
General
Maintenance Drawings
Introduction
List of Drawings
General Abbreviations
Interconnection Symbology
Signal Annotation
Functional Symbology
Signal Name
Digital Integrated Circuits
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Table of Contents
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This manual is also suitable for:
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