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HP Manuals
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7901A
Operating and service manual
HP 7901A Operating And Service Manual
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Contents
Table of Contents
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Table of Contents
Table of Contents
Section Page
1 General Information
Introduction
General Description
Identification
Specifications
Options
Accessories
Related Manuals
2 II
Installation
Introduction
Mounting
Connection Instructions
Shipping Instructions
Using Original Packaging
Using Other Packaging
3 III Operation
Operation
Introduction
Operating Controls and Indicators
Operating Instructions
4 Theory of Operation
Introduction
Mechanical and Electrical Characteristics
Detailed Functional Description
Drive Enable and Motor Control
Carriage Position Control
Head and Sector Control
Read/Write Control
Disc Drive Power Supply
5 Vmaintenance
Introduction
Maintenance Precautions
Preventive Maintenance
Absolute-Filter Replacement
Inspection
Cleaning
Repair Information
Performance Tests
Alignment and Adjustments
Regulated +5 VDC Supply
Encoder Plate Clearance
Encoder Clearance
Encoder Parallelism Adjustment
Encoder Alignment
Servo Amplifier Adjustment
Head Alignment
Sector Circumferential Adjustment
Belt Tension Adjustment
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