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Digital Equipment Manuals
I/O Systems
TU81
User manual
Digital Equipment TU81 User Manual
Tape subsystem
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Introduction
Chapter 1 Subsystem Description
General
Related Documents
Unit Variations
Tape Transport
Basic Features
Special Features
Tape Path
Tape Media Requirements
Subsystem Overview and Specifications
Interface Cabling
Performance Evaluation
Tape Formats
GCR Representation of Data Written on Tape
Speed Modes and Speed Selection
TU81 Expected Performance
Performance Hints
Adaptive Speed Control and Buffering
Functional Description
Transport Control System
Interface System
TU81 Interface
TA81 Interface
Power Supply
Physical Description
Tape Deck
Air Bearings
Tape Deck Components
Magnetic Head Assembly
Major Transport Assemblies
Tape Cleaner
BOT/EOT Assembly
File Protect Sensor
Power Switch
Cover Interlock
Electronic Logic Cages
Pneumatic Pump/Air Filter
Power Supply and Cooling Fan
Control Panel
ASCII Port Test Panel
General
Control Panel
TU81 Control Panel
Operator Controls
Diagnostic Controls
Special Controls
Operator Controls
Diagnostic Controls
Special Controls
Port Switch Operation
ASCII Port Test Panel
Operator's Hints
Operating Procedure
Inserting the Write-Enable Ring
Threading and Loading the Tape
Write-Enable Ring
Unloading the Tape
Manual Mode
On-Line Mode
Pump Shutdown
Corrective Action
Corrective Actions
Chapter 3 Customer Diagnostics
General
Operator Troubleshooting
Error Reporting
Operator Diagnostic Procedure
Power-On Health Check
Diagnostic Test 01
Unit Number
Chapter 4 Care and Preventive Maintenance
Magnetic Tape Basics
Magnetic Tape Care
Tape Storage
Magnetic Tape Handling
Relative Size of Tape Contaminants
Customer Responsibilities
Customer Maintenance
Magnetic Tape Transport Cleaning Kit
Reflective Tape Markers
Cleaning the Transport
Magnetic Head/Tape Path Components
Magnetic Heads
Air 'Bearings
Inspection of Tapes and Equipment
Uneven (Stepped) and Even Wind
Long Term Storage
Shipping Magnetic Tapes
Accessories and Supplies
Ordering
Digital Repair Service
Chapter 5 Installation
General
Site Planning
Space Requirements
Power Requirements
Environmental Requirements and Limits
Tools Required
Unpacking and Inspection
Floor Loading and Routing
Unpacking
Unpacking the Transport
Removing the Transport from the Shipping Pallet
Inspection
Operation Preparations
Mechanical Installation
Rear Shipping Bracket
Removing the Front Shipping Bar
Cabinet Assembly
Rear Stabilizer Installation
Side Stabilizers
Electrical Connection
874 Power Controller
Grounding
TU81-To-Host Interfacing
Turnkey Configuration
TU81-To-Host External Cabling
Tape Deck Access and Internal Cabling
DD-On Configuration
Address Selection Scheme
UNIBUS Grant Continuity Card
UNIBUS NPG Jumper
Installing the I/O Cables on the CPU Bulkhead
TA81-To-HSC Interfacing
TA81 Interface Cabling
TA81 Cabling Connections
TA81-To-HSC External Cabling
TA81 Tape Deck Access and Internal Cabling
Resident Diagnostics
M8739 Status Checking
VAX-Based Diagnostics
VAX Data Reliability On-Line Diagnostic
Basic Operating Instructions
Acceptance Test Example
PDP-11-Based Diagnostics
Basic Operating Instructions
Hardware Parameters
Software Parameters
TA81 Acceptance Diagnostics
Resident Diagnostics
Subsystem Level Diagnostics
In-Line Exerciser (!LEXER)
Booting the HSC
Maximum Error Number
Running ILTAPE Example (Test 01)
Running ILTAPE Example (Test 05)
Introduction
Required Tools and Supplies
Parts List (Hardware Kit)
Carton Contents
If Parts Are Missing
If You Need Help
Before You Begin
Unpacking and Set up
Removing Ground Stud from Rear Door
Releasing Pivot Pin to Remove Rear Door
Removing Front Bezel
Mounting the Chassis Slide Brackets to the Right-Side Chassis Slide
Mounting the Chassis Slides to the Tape Drive's
Hole Locator (Right Side
Extended, Locked Chassis Slides
Securing the Disk Drive to the Chassis Slides
Adjusting the Filler Panel
Plugging in the Disk Drive's Power Cord
Routing the Disk Drive's Power Cord
Mounting the I/O Bulkhead Module
Routing the SDI Cables
SDI Cable Connections
Mounting the New Stability Label
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