Fujitsu M2361A Manuals

Manuals and User Guides for Fujitsu M2361A. We have 1 Fujitsu M2361A manual available for free PDF download: Customer Engineering Manual

Fujitsu M2361A Customer Engineering Manual

Fujitsu M2361A Customer Engineering Manual (351 pages)

Mini-Disk Drive

Brand: Fujitsu | Category: Desktop | Size: 11.76 MB

Table of Contents

Table of Contents
6
Chapter 1 General Description

14
- General Description
  14
  - Figure 1.1.1 External View of M2361A
    14
  - 1.1.2 Features
    15
- Specifications
  16
- Configuration
  24
Figure 1.3.6 Power Cable C E

31
Chapter 2 Installation

34
- Installation
  34
  - Slide-Mounting Instructions
    35
- Visual Inspection
  34
- Cooling
  36
- Figure 2.5.4 Thermal Check Point
  37
- Table 2.5.1 Thermal Condition
  37
- Figure 2.5.5 Example of Additional Cooling Fan
  38
- Mounting of Options
  39
  - Dual Channel Option Mounting
    39
  - Slide Guide Mounting
    40
  - Figure 2.6.2 Rack Mount Installation
    40
  - Hour Meter Mounting
    41
  - Line Terminator Mounting
    41
- Cabling
  41
  - Cables
    41
Figure 2.7.10 SG/FG Isolated

48
Chapter 3 Operation and Checkout

50
- DC Power Supply Unit
  50
  - Introduction
    50
  - Control Panel
    50
  - Input Conditions
    52
- General Description
  50
- Output Conditions
  53
- Table 3.2.1 Output Conditions
  53
- Alarm Detections
  54
- Figure 3.3.1 Operator Panel
  54
- Operator Panel
  54
- Table 3.2.2 Indications of Alarms
  54
- Display Panel
  55
Logic PCB

69
CHAPTER 4 General Description

72
- Spindle Motor
  74
- Actuator Auto Lock
  79
- Figure 4.2.6 Magnetic Circuit
  79
- Figure 4.2.7 Actuator Auto Lock
  80
- Magnetic Head and Disk
  81
  - Magnetic Head
    81
  - Figure 4.3.1 Head Arm Assemb Ly
    81
  - Magnetic Disk
    82
- Figure 4.3.4 Track Pitch
  
  83
- Servo Track
  84
- Figure 4.3.6 Zone Allocation on Servo Surface
  85
- Figure 4.3.7 Servo Track Configuration
  86
- Data Format
  87
  - Format
    88
    
    Format Parameters
    88
- Track Efficiency
  
  88
  - Table 4.4.1 Track Efficiency
    88
  - Media Specifications
    89
    
    Figure 4.4.5 Format
    91
    
    Table 4.5.2 Status
    101
    
    Table 4.5.4 Access States
    105
    
    B-Cable Input Signals
    106
    
    B-Cable Output Signals
    107
    
    Figure 4.5.9 Unit Select Timing
    108
    
    Time Specifications
    108
    
    Figure 4.5.12 Read after Write and Write after Read Timing
    110
    
    Figure 4.5.13 Addressing for Movable Head
    110
    
    Figure 4.5.15 Offset Timing
    111
    
    Figure 4.5.17 am Write
    112
    
    Figure 4.5.19 RTZ Timing
    113
    
    Figure 4.5.20 Open Cable Detect Timing
    113
    
    Figure 4.5.21 Tag 4/5 Timing
    114
    
    Figure 4.5.23 Index and Sector Timing
    115
    
    Figure 4.5.24 Write Clock and Write Data Timing
    115
    
    Elecrtrical Circuit Function
    121
    
    Introduction
    121
    
    Logic Circuit
    121
    
    Figure 4.6.3 Unit Selection
    125
    
    Table 4.6.1 Access Mode Latches
    126
    
    Figure 4.6.4 Sequence RTZ
    128
    
    Figure 4.6.5 System RTZ Sequence
    130
    
    Figure 4.6.8 Seek Sequence
    135
    
    Figure 4.6.9 Offset Sequence
    137
    
    Servo Circuit
    139
    
    Figure 4.6.10 Seek Control
    140
    
    Figure 4.6.11 Rezero Control
    142
    
    Figure 4.6.13 Peak Hold Circuit
    144
    
    Figure 4.6.15 Detection of Sync Pulse
    145
    
    Figure 4.6.17 State of Position Signals
    148
    
    Figure 4.6.18 Output Signal of Smoother
    149
    
    Figure 4.6.19 Clamped Position Signal
    150
    
    Figure 4.6.20 Position Level Detector
    151
    
    Figure 4.6.21 Target Speed
    153
    
    Figure 4.6.22 Signals in Rezero Operation
    154
    
    Figure 4.6.23 Velocity
    155
    
    Figure 4.6.24 Outputs of Hall-Effect Elements
    158
    
    Figure 4.6.25 Data Write
    159
    
    Read/Write Function
    159
    
    Figure 4.6.27 2-7 Coding
    160
    
    Table 4.6.4 Translation between NRZ and 2-7 Codes
    161
    
    Table 4.6.5 Write Compensation Truth Table
    163
    
    Figure 4.6.30 Write Compensation Timing Chart
    165
    
    Figure 4.6.31 Read Write Bus Switch
    166
    
    Figure 4.6.36 VFO Timing Chart
    172
    
    Figure 4.6.37 Data Window Timing Chart
    173
  - Interface
    92
    
    Figure 4.5.1 Balanced Transmission of A-Cable
    92
    
    Signal Transmission Driver/Receiver
    92
    
    Figure 4.5.3 Power Sequence Pick/Hold
    93
    
    Figure 4.5.4 B-Cable Driver/Receiver
    94
    
    Figure 4.5.2 Open Cable Detect
    95
    
    Figure 4.5.5 A-Cable
    95
    
    Figure 4.5.6 B-Cable
    95
    
    Pin Assignment of Interface Connectors
    95
    
    A-Cable Input Signals
    96
    
    Table 4.5.1 Tag/Bus
    96
    
    Figure 4.5.7 Mapping
    97
    
    A-Cable Output Signals
    101
Chapter 5 Troubleshooting Guide

176
- Introduction
  176
- Error State
  177
- Table 5.2.1 Error Status
  177
- Troubleshooting Flow Chart
  179
  - Table 5.3.1 Symbol of Flow Chart
    179
  - Figure 5.4.1 Not Ready Flow Chart
    182
  - Figure 5.4.2 Faul T Flow Chart
    188
  - Figure 5.4.3 Seek Error Flow Chart
    189
  - Figure 5.4.5 am Missing Flow Chart
    198
  - Maintenance
    200
CHAPTER 6 Introduction

200
- General Precautions
  200
  - Power On/Off
    200
  - Replacement
    200
- Others
  
  200
  - Spare Parts List
    201
  - Table 6.3.1 Recommended Spare Parts List
    201
  - Maintenance Tools and Equipments
    202
  - Preventive Maintenance
    202
  - Spare Parts Replacement
    203
    
    Figure 6.6.1 Extension of the Drive
    203
    
    Pre-Procedure for Replacement
    203
    
    Figure 6.6.3 Rear Cover Removal
    205
    
    DE Replacement
    206
    
    Figure 6.6.4 de Replacement
    207
    
    DC Power Supply Unit Replacement
    208
    
    Fan Replacement
    210
    
    Figure 6.6.6 Fan Replacement
    210
    
    Display Panel Replacement
    211
    
    Operator Panel Replacement
    211
    
    Figure 6.6.7 Operator Panel and Display Panel Replacement
    212
    
    Figure 6.6.8 Interface PCB Replacement
    213
    
    Interface PCB Replacement
    213
    
    Power Amplifier Replacement
    214
    
    Figure 6.6.9 Power Amplifier Replacement
    215
    
    Air Filter Replacement
    216
    
    Line Blower Replacement
    216
    
    Fan Sensor Replacement
    217
    
    Card-Caged PCB Replacement
    218
    
    Back Panel Replacement
    219
    
    Line Terminator Replacement
    219
    
    Figure 6.6.13 Back Panel Removal
    220
  - PCB Check and Adjustment
    221
    
    Guide to Pcbs and Logic Diagrams
    221
    
    Figure 6.7.3 PCB Pin Numbering
    222
    
    Figure 6.7.4 Back Panel Pin Numbering (Bottom View)
    223
    
    Adjustment of Servo Circuit
    224
    
    Table 6.7.1 Function of Potentiometers
    224
    
    Figure 6.7.5 Rvs and Tps (W No.) on PCB SVIAU
    225
    
    Figure 6.7.6 VCO Free-Run Frequency Adjustment
    226
    
    Figure 6.7.7 Pre-Adjustment of Servo Signal
    226
    
    Figure 6.7.10 Access Timer Adjustment
    227
    
    Figure 6.7.8 Timer Gate Adjustment
    227
    
    Figure 6.7.11 Track Following Timer Adjustment
    228
    
    Figure 6.7.12 DAC Output Adjustment
    229
    
    Figure 6.7.13 Position Signal Gain Adjustment
    229
    
    Figure 6.7.14 Velocity Offset Adjustment
    230
    
    Figure 6.7.15 Fine Control Settling Adjustment
    230
    
    Adjustment of Read/Write Circuit
    231
    
    Adjustment of VFO Circuit
    234
    
    Illustrated Parts Catalog
    236
CHAPTER 7 Explanation

236
- Illustrations
  236
- Parts List
  236
Chapter 8

236
- B03P-482S-0002A
  236

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