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M2361A
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Fujitsu M2361A Customer Engineering Manual
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Chapter 1 General Description
General Description
Figure 1.1.1 External View of M2361A
1.1.2 Features
Specifications
Physical Specifications
Table 1.2.1 Physical Specifications
Figure 1.2.1 Physical Specifications
Environmental Specifications
Table 1.2.2 Environmental Specifications
1.2.3 Power Requirements
Data Recording Specifications
Figure 4.3.2 Head
Table 1.2.4 Data Recording Specifications
Figure 1.2.4 Spindle Start/Stop
Reliability
Data Integrity
Configuration
Figure 1.3.2 Functional Block Diagram
1.3.2 Options
Table 1.3.2 Cables and Connectors
Figure 1.3.6 Power Cable C E
Chapter 2 Installation
Installation
Slide-Mounting Instructions
Visual Inspection
Figure 2.5.2 Rack Mount Installation
Figure 2.6.3 Back Panel PCB
Table 2.7.1 Cable List
Table 2.7.2 Cables and Connectors
Figure 2.7.3 Power Cable Connector
Interface Cabling
Power Cable Connection
Figure 2.7.4 Radial Cable Configuration
Figure 2.7.5 Daisy-Chain Cable Configuration
Figure 2.7.6 Cable Mounting (Rear View)
System Grounding
Cooling
Figure 2.5.4 Thermal Check Point
Table 2.5.1 Thermal Condition
Figure 2.5.5 Example of Additional Cooling Fan
Mounting of Options
Dual Channel Option Mounting
Slide Guide Mounting
Figure 2.6.2 Rack Mount Installation
Hour Meter Mounting
Line Terminator Mounting
Cabling
Cables
Figure 2.7.10 SG/FG Isolated
Chapter 3 Operation and Checkout
DC Power Supply Unit
Introduction
Control Panel
Input Conditions
General Description
Figure 3.2.2 Fgl, FG2 and SG
Figure 3.4.1 Display Panel
Figure 3.4.2 Spindle Sequence Pick/Hold Timing
MRTZ (Manual RTZ) Switch
REMOTE/LOCAL Switch
RLTM/ABSL (Release Timer/Absolute) Switch
Table 3.4.1 Status and State
Dual Port Status Indicators (Leds)
Table 3.4.2 Unit Status Indicators
Table 3.4.3 Dual Port Status
Unit Status Indicators (Leos)
Drive Address Switch (DIP Switches)
Figure 3.4.3 Drive Address Switch
Figure 3.4.4 Sector Count Switches
Sector Count Switch (DIP Switches)
Table 3.4.4 Setting of Sector Count
Figure 3.5.1 Interface Modification
Output Conditions
Table 3.2.1 Output Conditions
Alarm Detections
Figure 3.3.1 Operator Panel
Operator Panel
Table 3.2.2 Indications of Alarms
Display Panel
Logic PCB
CHAPTER 4 General Description
Spindle Motor
Table 4.2.1 Specifications
Figure 4.2.4 DC Motor Waveforms
Figure 4.2.5 Construction of the Actuator
Rotary Actuator
Actuator Auto Lock
Figure 4.2.6 Magnetic Circuit
Figure 4.2.7 Actuator Auto Lock
Magnetic Head and Disk
Magnetic Head
Figure 4.3.1 Head Arm Assemb Ly
Magnetic Disk
Figure 4.3.4 Track Pitch
Servo Track
Figure 4.3.6 Zone Allocation on Servo Surface
Figure 4.3.7 Servo Track Configuration
Data Format
Format
Format Parameters
Track Efficiency
Table 4.4.1 Track Efficiency
Media Specifications
Figure 4.4.5 Format
Table 4.5.2 Status
Table 4.5.4 Access States
B-Cable Input Signals
B-Cable Output Signals
Figure 4.5.9 Unit Select Timing
Time Specifications
Figure 4.5.12 Read after Write and Write after Read Timing
Figure 4.5.13 Addressing for Movable Head
Figure 4.5.15 Offset Timing
Figure 4.5.17 am Write
Figure 4.5.19 RTZ Timing
Figure 4.5.20 Open Cable Detect Timing
Figure 4.5.21 Tag 4/5 Timing
Figure 4.5.23 Index and Sector Timing
Figure 4.5.24 Write Clock and Write Data Timing
Elecrtrical Circuit Function
Introduction
Logic Circuit
Figure 4.6.3 Unit Selection
Table 4.6.1 Access Mode Latches
Figure 4.6.4 Sequence RTZ
Figure 4.6.5 System RTZ Sequence
Figure 4.6.8 Seek Sequence
Figure 4.6.9 Offset Sequence
Servo Circuit
Figure 4.6.10 Seek Control
Figure 4.6.11 Rezero Control
Figure 4.6.13 Peak Hold Circuit
Figure 4.6.15 Detection of Sync Pulse
Figure 4.6.17 State of Position Signals
Figure 4.6.18 Output Signal of Smoother
Figure 4.6.19 Clamped Position Signal
Figure 4.6.20 Position Level Detector
Figure 4.6.21 Target Speed
Figure 4.6.22 Signals in Rezero Operation
Figure 4.6.23 Velocity
Figure 4.6.24 Outputs of Hall-Effect Elements
Figure 4.6.25 Data Write
Read/Write Function
Figure 4.6.27 2-7 Coding
Table 4.6.4 Translation between NRZ and 2-7 Codes
Table 4.6.5 Write Compensation Truth Table
Figure 4.6.30 Write Compensation Timing Chart
Figure 4.6.31 Read Write Bus Switch
Figure 4.6.36 VFO Timing Chart
Figure 4.6.37 Data Window Timing Chart
Interface
Figure 4.5.1 Balanced Transmission of A-Cable
Signal Transmission Driver/Receiver
Figure 4.5.3 Power Sequence Pick/Hold
Figure 4.5.4 B-Cable Driver/Receiver
Figure 4.5.2 Open Cable Detect
Figure 4.5.5 A-Cable
Figure 4.5.6 B-Cable
Pin Assignment of Interface Connectors
A-Cable Input Signals
Table 4.5.1 Tag/Bus
Figure 4.5.7 Mapping
A-Cable Output Signals
Chapter 5 Troubleshooting Guide
Introduction
Error State
Table 5.2.1 Error Status
Troubleshooting Flow Chart
Table 5.3.1 Symbol of Flow Chart
Figure 5.4.1 Not Ready Flow Chart
Figure 5.4.2 Faul T Flow Chart
Figure 5.4.3 Seek Error Flow Chart
Figure 5.4.5 am Missing Flow Chart
Maintenance
CHAPTER 6 Introduction
General Precautions
Power On/Off
Replacement
Others
Spare Parts List
Table 6.3.1 Recommended Spare Parts List
Maintenance Tools and Equipments
Preventive Maintenance
Spare Parts Replacement
Figure 6.6.1 Extension of the Drive
Pre-Procedure for Replacement
Figure 6.6.3 Rear Cover Removal
DE Replacement
Figure 6.6.4 de Replacement
DC Power Supply Unit Replacement
Fan Replacement
Figure 6.6.6 Fan Replacement
Display Panel Replacement
Operator Panel Replacement
Figure 6.6.7 Operator Panel and Display Panel Replacement
Figure 6.6.8 Interface PCB Replacement
Interface PCB Replacement
Power Amplifier Replacement
Figure 6.6.9 Power Amplifier Replacement
Air Filter Replacement
Line Blower Replacement
Fan Sensor Replacement
Card-Caged PCB Replacement
Back Panel Replacement
Line Terminator Replacement
Figure 6.6.13 Back Panel Removal
PCB Check and Adjustment
Guide to Pcbs and Logic Diagrams
Figure 6.7.3 PCB Pin Numbering
Figure 6.7.4 Back Panel Pin Numbering (Bottom View)
Adjustment of Servo Circuit
Table 6.7.1 Function of Potentiometers
Figure 6.7.5 Rvs and Tps (W No.) on PCB SVIAU
Figure 6.7.6 VCO Free-Run Frequency Adjustment
Figure 6.7.7 Pre-Adjustment of Servo Signal
Figure 6.7.10 Access Timer Adjustment
Figure 6.7.8 Timer Gate Adjustment
Figure 6.7.11 Track Following Timer Adjustment
Figure 6.7.12 DAC Output Adjustment
Figure 6.7.13 Position Signal Gain Adjustment
Figure 6.7.14 Velocity Offset Adjustment
Figure 6.7.15 Fine Control Settling Adjustment
Adjustment of Read/Write Circuit
Adjustment of VFO Circuit
Illustrated Parts Catalog
CHAPTER 7 Explanation
Illustrations
Parts List
Chapter 8
B03P-482S-0002A
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