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Control Data Manuals
Storage
BR3B8
Reference manual
Control Data BR3B8 Reference Manual
Disk storage unit
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Contents
Table of Contents
Bookmarks
Table of Contents
Table of Contents
1 General Description
Introduction
Drive Specifications
Assembly Locations
Top Cover Assembly
Spindle Assembly
Deck Assembly
AC Power Supply
Logic Chassis
Equipment Identification
2 Operation
Controls and Indicators
Controls and Indicators
Operating Instructions
Power Application
Disk Pack Handling
Disk Pack Installation
Disk Pack Removal
3 Theory Of' Operation
Introduction
Assemblies
Power Supply
AC IDC Distribution
Power Distribution
Overtemperature Monitoring
Power on Sequence
Emergency Retract and Data Protection
Loss of AC Power
Control Interlock Opening
Power off Timing
Loss of Speed
Power off Sequence
Logic Chassis
Power off Sequence
Deck Assembly
Drive Motor Assembly
Hysteresis Brake Assembly
Spindle Assembly
Actuator
Deck Assembly
Actuator Assembly Elements
Head Loading
Head/Arm Assembly Motion
Transducers
Disk Cleaner Assembly
Blower System
Disk Pack
Logic Functions
Basic Interface Description
Blower System
Function Control Code Definitions
Function Control Timing
Unit Selection
Seek Operations
Status Request Timing
Servo Circuit
Servo Circuit Functions
Servo Circuit Simplified Schematic
Basic Seek Operation
Servo Circuit Simplified Signals
Short Seeks
Track Servo Circuit
Basic Description
Circuit Description
Track Servo Circuit Simplified
Track Servo Circuit Simplified
End of Travel Detection
Cylinder Pulse Generation
Cylinder Pulses Generation
First Seek
First Seek Flow Chart
Direct (Forward/Reverse) Seek
Direct Seek Flow Chart
Direct Seek Timing Diagram
Positioner Motion
Machine Clock Circuit
Clock Generation
Index Detection Circuit
Sector Circuit
Basic Read/Write Principles
Introduction
Writing Data
Reading Data
Track Format
Writing Data
Reading Data
Principles of MFM Recording
Read/Write Operations
Introduction
Write Data Processing
Write Data Serializer
Write Serializer Timing
Peak Shift
Write Compensation Circuit
AGC Amplifier Stage (Simplified Logic)
Data Latch Circuit
Phase Lock Oscillator Circuit
Data Separator Circuit
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CONTROL DATA
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CONTROL
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8RJ88 DISk STORAG£
UNIT
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R£F£R£NC£ MANUAL
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