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M2361A
Fujitsu M2361A Manuals
Manuals and User Guides for Fujitsu M2361A. We have
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Fujitsu M2361A manual available for free PDF download: 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
Physical Specifications
16
Table 1.2.1 Physical Specifications
16
Figure 1.2.1 Physical Specifications
17
Environmental Specifications
18
Table 1.2.2 Environmental Specifications
18
1.2.3 Power Requirements
19
Data Recording Specifications
20
Figure 4.3.2 Head
20
Table 1.2.4 Data Recording Specifications
20
Figure 1.2.4 Spindle Start/Stop
21
Reliability
22
Data Integrity
23
Configuration
24
Figure 1.3.2 Functional Block Diagram
25
1.3.2 Options
28
Table 1.3.2 Cables and Connectors
30
Figure 1.3.6 Power Cable C E
31
Chapter 2 Installation
34
Installation
34
Slide-Mounting Instructions
35
Visual Inspection
34
Figure 2.5.2 Rack Mount Installation
35
Figure 2.6.3 Back Panel PCB
41
Table 2.7.1 Cable List
42
Table 2.7.2 Cables and Connectors
42
Figure 2.7.3 Power Cable Connector
44
Interface Cabling
44
Power Cable Connection
44
Figure 2.7.4 Radial Cable Configuration
45
Figure 2.7.5 Daisy-Chain Cable Configuration
45
Figure 2.7.6 Cable Mounting (Rear View)
46
System Grounding
47
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
Figure 3.2.2 Fgl, FG2 and SG
52
Figure 3.4.1 Display Panel
55
Figure 3.4.2 Spindle Sequence Pick/Hold Timing
56
MRTZ (Manual RTZ) Switch
56
REMOTE/LOCAL Switch
56
RLTM/ABSL (Release Timer/Absolute) Switch
56
Table 3.4.1 Status and State
57
Dual Port Status Indicators (Leds)
59
Table 3.4.2 Unit Status Indicators
59
Table 3.4.3 Dual Port Status
59
Unit Status Indicators (Leos)
59
Drive Address Switch (DIP Switches)
60
Figure 3.4.3 Drive Address Switch
60
Figure 3.4.4 Sector Count Switches
61
Sector Count Switch (DIP Switches)
61
Table 3.4.4 Setting of Sector Count
62
Figure 3.5.1 Interface Modification
69
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
Table 4.2.1 Specifications
75
Figure 4.2.4 DC Motor Waveforms
77
Figure 4.2.5 Construction of the Actuator
78
Rotary Actuator
78
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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