CORVUS H-Series Manuals

Manuals and User Guides for CORVUS H-Series. We have 1 CORVUS H-Series manual available for free PDF download: Service Manual

CORVUS H-Series Service Manual

CORVUS H-Series Service Manual (117 pages)

H-Series 5.25-INCH WINCHESTER DISK DRIVE

Brand: CORVUS | Category: Floppy Disk Drive | Size: 5 MB

Table of Contents

Table of Contents
7
List of Figures and Tables
11
List of Assembly and Schematic Drawings
13
Specifications
15
Chapter 1 - General Description

18
- Scope of Chapter
  20
- Introduction
  20
- Purpose of Equipment
  20
- Model Identification
  20
- Corvus Disk System
  21
  - Power Supply
    21
  - Data Backup
    21
- Winchester Disk Drive
  21
Chapter 2 - Installation

22
- Scope of Chapter
  23
- Introduction
  23
- Receiving a Drive
  23
  - Diagnostic Test
    23
- Environmental Considerations
  25
- Daisy-Chaining of Disk Drives
  25
Chapter 3 Operation

27
- Scope of Chapter
  28
- Introduction
  28
- Controls
  28
  - Front Bezel Leos
    28
  - Front Bezel Switches
    28
- Power-On Sequence
  29
- Environn1Ental Requirements
  29
  - Static Electricity
    29
  - Line Noise
    30
  - Temperature
    30
- Periodic Maintenance
  30
  - Regular Checks
    30
Chapter 4 - Drive Description

31
- Scope of Chapter
  32
- Introduction
  32
- Drive Layout
  32
  - Power Supply
    32
  - DC Power Cables
    33
- General Description
  33
- Disk Sealed Mechanism
  34
- Controller Firmware
  34
- Data Storage
  34
- Corvus Dealer Service
  34
- Transportation Considerations
  36
- Theory of Operation
  36
  - Power-Up
    36
  - Controller PCA
    38
    
    Controller During Seek
    38
    
    Controller During Read and Write
    38
  - Backplane PCA
    40
  - Paddleboard PCA
    40
  - Interface PCA
    40
  - Read/Write PCA
    41
  - Motor Control PCA
    41
Chapter 5 Disassembly

42
- Scope of Chapter
  43
  - Tools Required
    43
- Plastic Package
  43
  - Top Cover
    43
  - Controller PCA
    43
  - Drive Mechanism
    44
  - Read/Write PCA
    44
  - Motor Control PCA
    44
  - Power Supply
    47
  - Front Bezel
    47
Chapter 6 - Adjustments and Maintenance

48
- Scope of Chapter
  49
- Introduction
  49
- Power Supply Voltage Check and Adjustment
  49
  - Voltage Check (CP510)
    49
  - Voltage Adjustment
    49
- Motor Brake Adjustment
  50
- Index Sensor Adjustment
  52
Chapter 7 - Dealer Service Diagnostics

54
- Scope of Chapter
  55
- Introduction
  55
- Drive Diagnostics Revb
  55
  - Crc
    55
  - Exr
    56
  - Upd
    56
  - Vsn
    56
  - Fmt
    57
  - Prm
    57
    
    Mux
    57
    
    Drive
    58
  - Set
    58
  - Park
    58
  - Quit
    58
- Controller Diagnostic
  59
  - General Description
    59
  - Controller Diagnostic Commands
    59
    
    A) Abort Diagnostic
    59
    
    B) Macro Menu
    59
    
    C) Change Slot Number
    60
    
    D) Download Diagnostic
    60
    
    I) Analyze Servo
    61
    
    J) Single Do Seek
    61
    
    L) Full Cylinder Loopseek
    61
    
    P) Print Quiet Summary Report
    61
    
    Q) Sector Quiet Program
    61
    
    S) Read Scan Disk
    62
    
    T) Single Cylinder Seek Scan
    62
    
    X) Write Scan Disk
    62
    
    Y) Rezero Heads
    62
  - Error Codes
    63
- Burn-In Program
  63
  - C)Ont L)Ist R)Estart Q)Uit
    63
  - L)Ist
    63
  - R)Estart
    65
  - Q)Uit
    65
Chapter 8 Fault Isolation Procedures

66
- Scope of Chapter
  67
- Introduction
  67
- Tools
  67
- Error Codes
  67
  - Interpreting Error Codes
    67
- Troubleshooting Procedures
  71
  - On-Site Checks
    71
  - Isolate the Problem
    71
  - Drive Not Ready
    72
    
    Interface
    72
    
    Controller Firmware
    72
    
    Power Supply Voltages
    72
    
    Drive Electronics
    72
    
    Drive Sealed Mechanism
    73
  - Link Inoperative
    73
    
    Check Link Action
    73
    
    Power Supply
    73
    
    CRC Test
    73
    
    Controller Communication
    74
    
    Servo Action
    74
    
    Controller Firmware
    74
    
    Corvus Dealer Service
    74
    
    Boot ROM
    74
    
    Interface Components
    74
    
    Drive Initialization
    74
- Final Adjustments and Tests
  75
  - CRC Test
    75
  - Install and Test Mirror
    75
  - Power Supply
    75
- Trouble Shooting Flowchart
  76
Appendix Aglossary

82
Appendix B H-Series Parts List

85
Appendix C Internal Cabling Chart

87

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