HP 7414A Manuals

HP 7414A Manuals

Manuals and User Guides for HP 7414A. We have 1 HP 7414A manual available for free PDF download: Operating And Service Manual

HP 7414A Operating And Service Manual

HP 7414A Operating And Service Manual (113 pages)

THERMAL-TIP RECORDER

Brand: HP | Category: Recording Equipment | Size: 10.28 MB

Table of Contents

Table of Contents
7
Applications and Specifications
10
Four-Channel Recorder
10
Section I, General Information
10
Model 7414A Recording System
11
- Accessories
  13
- Section II, Installation
  14
- Initial Inspection
  14
- Mechanical Check
  14
- Performance Tests
  14
- Damage Claims
  14
- Storage
  14
- Installation
  14
- Preamplifier Installation
  14
Power Connections
14
Remote Control and Marker Connections
17
Signal Connections
17
Tape System Connections
17
Section III, Operation
19
Galvanometer Position Feedback
22
Section IV, Principles of Operation
22
Stylus Linkage
22
Galvanometer Damping
23
Heat Control Circuit
23
Power Control Circuits
23
- Preamplifier Power Supply Circuits
  24
- Oscillator
  24
Recorder Signal Circuits
25
- Galvanometer Position Feedback Circuit
  26
- Galvanometer Damping
  26
Chart Drive
28
Chart Motor
28
Speed Control
28
- Chart Drive Gears
  28
- Paper Feed
  31
Recorder Power Supply and Regulator Circuits
31
- Recorder DC Power Supplies
  31
- Paper Feed Path
  31
- Recorder Power Supply and Regulator Circuits, Simplified Circuit
  32
- Regulator/Oscillator
  33
- Marker Circuits
  33
- 440 Hz Oscillator
  34
- 2400 Hz Oscillator Circuit
  34
- Section V, Maintenance
  35
- Test Equipment and Lubricants
  35
- Performance Checks
  35
Recommended Test Equipment
35
Lubricants and Solvents Required
36
- Test and Adjustment Points
  37
Electrical Performance Checks and Adjustments
39
Cleaning
43
- Lubrication
  43
- Electrical Checks
  44
- Adjustments and Minor Repairs
  44
  - Paper Drive Adjustments
    44
- Test Cable, Plug and Fixtures
  45
- Driver Amplifier and Regulator/Oscillator Test
  46
Stylus Adjustments
46
Regulator/Oscillator Board Test Points
47
Driver Amplifier Board Test Points
48
Paper Brake Felt Cover Removal and Replacement
50
- Stylus Adjustments
  52
Corrective Maintenance
52
- Galvanometer Removal and Replacement
  53
- Drive Unit Removal and Replacement
  53
Channel Time Synchronization Adjustment
53
Gearbox Removal
53
Paper Table Removal
53
Stylus Removal and Replacement
54
Drive Unit Removal
55
- Paper Table Disassembly for Drive
  57
- Gearbox Removal and Overhaul
  57
Drive Roller and Table Link Removal (Part 1)
59
Drive Roller and Table Link Removal (Part 2)
60
Gearbox Inspection and Solenoid Adjustment
62
- Gearbox Shaft End Play Adjustment
  66
Spring Clutch Lubrication (Primary Shaft)
67
- Overriding Clutch Lubrication (Secondary Shaft)
  68
- Gearbox Input Chain Tension Adjustment
  69
  - Solenoid Adjustment
    70
Marker Assembly Maintenance ·5-34
70
- Marker Assembly Adjustment and Removal
  70
- Section VI, Recplaceable Parts
  71
- Reference Designations
  71
- Ordering Information
  72
  - Locations
    72
- Driver Amplifier
  73
Replaceable Parts
73
Table
77
Code List of Manufacturers
88

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