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CORVUS Manuals
Floppy Disk Drive
H-Series
Service manual
CORVUS H-Series Service Manual
H-series 5.25-inch winchester disk drive
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
List of Figures and Tables
List of Assembly and Schematic Drawings
Specifications
Chapter 1 - General Description
Scope of Chapter
Introduction
Purpose of Equipment
Model Identification
Corvus Disk System
Power Supply
Data Backup
Winchester Disk Drive
Chapter 2 - Installation
Scope of Chapter
Introduction
Receiving a Drive
Diagnostic Test
Environmental Considerations
Daisy-Chaining of Disk Drives
Chapter 3 Operation
Scope of Chapter
Introduction
Controls
Front Bezel Leos
Front Bezel Switches
Power-On Sequence
Environn1Ental Requirements
Static Electricity
Line Noise
Temperature
Periodic Maintenance
Regular Checks
Chapter 4 - Drive Description
Scope of Chapter
Introduction
Drive Layout
Power Supply
DC Power Cables
General Description
Disk Sealed Mechanism
Controller Firmware
Data Storage
Corvus Dealer Service
Transportation Considerations
Theory of Operation
Power-Up
Controller PCA
Controller During Seek
Controller During Read and Write
Backplane PCA
Paddleboard PCA
Interface PCA
Read/Write PCA
Motor Control PCA
Chapter 5 Disassembly
Scope of Chapter
Tools Required
Plastic Package
Top Cover
Controller PCA
Drive Mechanism
Read/Write PCA
Motor Control PCA
Power Supply
Front Bezel
Chapter 6 - Adjustments and Maintenance
Scope of Chapter
Introduction
Power Supply Voltage Check and Adjustment
Voltage Check (CP510)
Voltage Adjustment
Motor Brake Adjustment
Index Sensor Adjustment
Chapter 7 - Dealer Service Diagnostics
Scope of Chapter
Introduction
Drive Diagnostics Revb
Crc
Exr
Upd
Vsn
Fmt
Prm
Mux
Drive
Set
Park
Quit
Controller Diagnostic
General Description
Controller Diagnostic Commands
A) Abort Diagnostic
B) Macro Menu
C) Change Slot Number
D) Download Diagnostic
I) Analyze Servo
J) Single Do Seek
L) Full Cylinder Loopseek
P) Print Quiet Summary Report
Q) Sector Quiet Program
S) Read Scan Disk
T) Single Cylinder Seek Scan
X) Write Scan Disk
Y) Rezero Heads
Error Codes
Burn-In Program
C)Ont L)Ist R)Estart Q)Uit
L)Ist
R)Estart
Q)Uit
Chapter 8 Fault Isolation Procedures
Scope of Chapter
Introduction
Tools
Error Codes
Interpreting Error Codes
Troubleshooting Procedures
On-Site Checks
Isolate the Problem
Drive Not Ready
Interface
Controller Firmware
Power Supply Voltages
Drive Electronics
Drive Sealed Mechanism
Link Inoperative
Check Link Action
Power Supply
CRC Test
Controller Communication
Servo Action
Controller Firmware
Corvus Dealer Service
Boot ROM
Interface Components
Drive Initialization
Final Adjustments and Tests
CRC Test
Install and Test Mirror
Power Supply
Trouble Shooting Flowchart
Appendix Aglossary
Appendix B H-Series Parts List
Appendix C Internal Cabling Chart
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THE CORVUS SERVICE MANUAL
H-Series Drives
*\
CORVUS SYSTEMS
*
*
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Table of Contents
Troubleshooting
Troubleshooting Procedures
71
Trouble Shooting Flowchart
76
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