Data General 6020 Series Manuals

Manuals and User Guides for Data General 6020 Series. We have 1 Data General 6020 Series manual available for free PDF download: Technical Manual

Data General 6020 Series Technical Manual

Data General 6020 Series Technical Manual (94 pages)

TAPE TRANSPORT

Brand: Data General | Category: Storage | Size: 5 MB

Table of Contents

Table of Contents
5
Overview
11
This Machine, an Introduction
11
This Manual
13
Logic Conventions
14
- Drawings
  14
- Signal Levels
  14
- Signal Names
  14
Reference Documents
14
Mechanical Assemblies
17
Introduction
17
Internal Wiring and Cables
17
- Cable Connectors
  17
- Vacuum Blower Assembly
  18
Power Supply
19
Vacuum Columns and Manifolds
20
Capstan/Tachometer Assembly
22
Reel Motors and Hub Assemblies
22
Transcription Head Assembly
23
Write Lock Switch Assembly
23
Miscellaneous Tape Path Elements
24
- Tape Guides
  24
- Suction Tape Cleaner
  24
Printed Circuit Boards
25
Transport Control Logic
27
Introduction
27
Operations Initiated at the Operators Console
28
- Flowchart Conventions
  28
- Load Sequence
  28
- Unload (and Unwind) Sequence
  30
- Unload
  31
- Rewind Sequence
  32
- On Line Sequence
  33
- Reset Sequence
  33
Control Signals Exchanged with the Tape Controller
34
Transport and Subsystem Timing
35
- Start and Stop Delays
  36
- Character Spacing
  36
References
36
Data Transfer and Transcription Systems
37
Introduction
37
Review of Data Transcription Principles
37
- Writing Data
  38
- Reading Data
  39
Terminology Conventions
40
- Bits
  40
- Characters and Bytes
  40
- Records or Blocks
  40
Data Writing Path
41
Data Reading Path
43
- Analog Amplifier
  43
- The Full Wave Rectifier
  43
- Delay Line Peak Detector
  43
- Threshold Selection
  44
- Data Register and Line Drivers
  44
- Erase Function
  44
References
44
Analog and Servo Functions
45
Introduction
45
What Is a Serv01
46
Operational Amplifiers as Analog Building Blocks
47
- I Deal Operational Amplifier
  47
- Scalar Multiplier
  47
  - Followers
    48
  - Differentiator
    48
  - Integrator
    49
  - Summing Amplifier
    49
Important Considerations
50
Amplifier St Ability
51
- External Compensation
  51
- Internal Compensation
  52
Analog Switches
52
- N-Channel Analog Switch
  53
- P-Channel Analog Switch
  53
Servo Disabling Interlocks
54
Vacuum Column, Tape Buffer Servo System
56
- Vacuum Transducer
  57
- Servo Preamplifiers
  58
- Summing Amplifier and Biasing Circuits
  59
  - Gain Selectors
    60
  - Differentiator
    61
  - Bias Circuits
    62
  - Reel Motor Drivers
    64
Signal Polarity and Motor Rotation
64
Capstan Servo System
65
References and Bibliography
70
Power Supply and Distribution
71
Introduction
71
Supply Specification
72
Overview
73
Fuses
74
Remote Energizer
74
Const Ant Volt Age Transformer
75
DC Grounds Isolation
75
Voltage Regulators
76
- Volt Regulator
  76
- Volt Regulators
  76
Over Volt Age Protection
77
Technical Specifications
79
General
79
Mechanical
80
Environment al
80
(Early Version, 6020 Series Tape Transport)
83
Introduction
83
Printed Circuit Boards
84
Air Flow and Ventilation in the Transport
84
Supply Voltages
85
Configuration
86
- Fuses
  86
- Remote Energizer
  87
- DC Grounds Isolation
  87
Rectifiers, DC Breaker and Non-Regulated Russes
88
Regulators
88
References
91
Documentation Summary
91

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