Tektronix 455 Manuals

Tektronix 455 Manuals

Manuals and User Guides for Tektronix 455. We have 1 Tektronix 455 manual available for free PDF download: Instruction Manual

Tektronix 455 Instruction Manual

Tektronix 455 Instruction Manual (247 pages)

PORTABLE OSCILLOSCOPE

Brand: Tektronix | Category: Test Equipment | Size: 23.58 MB

Table of Contents

Instrument Serial Numbers
3
Table of Contents
4
Main M Odule
6
List of Illustrations
7
- Operators Safety Summary
  10
- Symbols
  10
- Grounding the Product
  11
- Use the Proper Fuse
  11
- Use the Proper Power Cord
  11
- Servicing Safety Summary
  12
Section 1 - Specifications

14
- Physical
  17
- B2 Horizontal M Odule
  20
- 455/A2/B2
  24
- Recommended Accessories
  24
Section 2 - Operating Instructions

26
- O Perating Voltage
  26
- Safety Inform Ation
  26
- Functions of Controls, Connectors and Indicators
  26
  - Main M Odule
    26
  - A2 Vertical M Odule
    28
    
    Ac Gnd
    29
    
    Operating Lnstructions-455/A2/B2
    29
    
    UNCA Lamps
    29
    
    VERT Mode
    29
  - B2 Horizontal M Odule
    30
    
    Horiz Display
    31
    
    Position
    31
    
    Trig Mode
    31
    
    X10 Mag
    31
    
    Coupling
    32
    
    Power
    32
    
    Source
    32
    
    Trigger Level
    32
    
    Dual Trace Phase Difference Measurement
    33
    
    Instantaneous Amplitude Measurement
    33
    
    Peak-To-Peak Amplitude Measurements
    33
- Basic a Pplications and Measurements
  33
  - High Resolution Phase Measurement
    34
  - Common Mode Rejection
    35
  - Cascaded Operation
    35
  - Time Duration Frequency Measurements
    35
  - Risetime Measurements
    36
  - Differential Time Measurements
    36
  - Delayed Sweep Magnification
    38
  - Options
    40
  - Test Equipment Required
    40
Section 3 - Performance Check

40
- Performance Check Procedure
  41
- Prelim Inary Procedure
  41
  - Trigger View Gain
    43
  - Trigger View Delay Difference
    43
  - Cascaded Sensitivity
    44
  - Cascaded Bandwidth
    44
  - CH1 Bandwidth
    44
  - X Bandwidth
    45
  - Trigger Filter
    45
  - Low Frequency Triggering
    45
  - External Triggering
    47
  - Internal Triggering
    48
  - Trigger Level Ranges
    48
  - A and B Sweep Rate Accuracy
    49
  - Magnified Sweep Accuracy
    50
  - Differential Time Measurement Accuracy
    50
- Basic Circuit Functions
  53
Section 4 - Circuit Description

53
- A2 Vertical M Odule
  53
  - B2 Horizontal M Odule
    54
- Detailed Circuit Operation
  55
  - Calibrator
    55
    
    Multivibrator
    55
    
    Output Amplifier
    55
    
    Sweep Gate a M Plifier
    55
455/A2/B2

55
- High-Voltage Oscillator
  56
- High-Voltage Regulator
  56
- C Rt C Ircu It
  56
  - High-Voltage Circuitry
    57
  - Crt Control Circuits
    57
  - Z Axis Amplifier
    57
- Low-Voltage Power Supply
  57
  - Power Input
    57
  - Secondary Circuit
    58
  - Scale Factor Control
    59
  - Input Coupling and Volts/Division Switching
    59
  - FET Input Source Follower
    59
  - Preamplifier and Channel Switching Gates
    59
  - Channel Switching Multivibrator
    62
- Vertical Output Amplifier
  63
  - Delay-Line Driver
    63
  - Normal Trigger Pickoff
    63
  - Trigger Coupling
    64
  - Input Source Follower
    64
- Trig G er Input
  64
- Trigger, Sweep, and H Orizontal Pream Plifier
  64
  - A and B Trigger Generators
    64
  - Sweep Generator IC's
    67
  - Miller Sweep Generator
    67
  - Sweep Control 1C
    68
  - Sweep Control Operation
    69
  - A Sweep Mode
    69
  - B D Ly'D Sweep Mode
    70
  - A Inten Sweep Mode
    70
  - Horizontal Preamplifier 1C
    71
- Cabinet Removal
  73
  - Cleaning
    73
Section 5 - Maintenance

73
- Preventive M Aintenance
  73
  - Interior
    73
  - Switch Contacts
    74
  - Exterior
    74
  - Visual Inspection
    74
  - Lubrication
    74
    
    Crt
    74
  - Sem Iconductor Checks
    74
  - Recalibration
    74
    
    Special Parts
    75
    
    Standard Parts
    75
- C Orrective M Aintenance
  75
- Troubleshooting Chart
  86
  - Diagrams
    86
  - Troubleshooting Equipment
    86
  - Fig. 5-12. Component Value Identification
    87
  - Troubleshooting Techniques
    88
    
    Check Associated Equipment
    88
    
    Check Circuit Board Interconnections
    88
    
    Check Control Settings
    88
    
    Check Individual Components
    88
    
    Check Instrument Calibration
    88
    
    Check Voltages and Waveforms
    88
    
    Isolate Trouble to a Circuit
    88
    
    Visual Check
    88
    
    Repair and Readjust the Circuit
    89
    
    Fig. 5-13. Troubleshooting Chart
    90
- Repackaging for Shipment
  92
  - Tolerances
    93
  - Partial Procedures
    93
Section 6 - Adjustments

93
- Adjustm Ent Interaction
  93
- Test Equipment Required
  93
- A. M a in Module
  95
- Vertical M Odule
  98
  - Fig. 64. Vertical Adjustment Locations
    101
- C. Ho R Izo N Ta L Module
  102
  - Fig. 6 5. Sweep Adjustment Locations
    102
  - Fig. 6-6A Horizontal and T Rigger Adjustm Ent Locations
    103
  - Fig. 6-6B. Horizontal and Trigger Adjustment Locations
    103
  - Fig. 6-7. C232 and C233 Adjustment Locations
    105
  - Instrument Options
    106
  - Fig. Option 4-1. Partial Power Supply Diagram
    107
    
    Installation and Set up of Video Gratitude
    110
    
    Operating Information
    110
    
    Triggering a Sweep
    110
    
    Dual Trace Modes
    111
    
    One Frame a Sweep Cycle
    111
    
    Selecting an Individual Line
    111
    
    Vertical Operating Modes
    111
    
    CCIR System B
    112
    
    Identifying Fields, Frames and Lines
    112
  - Fig. Option 5-1. Block Diagram
    116
    
    Switching
    116
    
    Input Buffer Amplifier
    117
    
    Inverting/Non Inverting Amplifier
    117
    
    Sync Separator Circuit
    117
    
    Vertical Sync Recognizer
    118
    
    Voltage Conditions
    119
    
    Waveform Conditions
    119
    
    Abbreviations
    122
    
    Replaceable Parts
    122
    
    Functions of Controls and Connectors
    125
    
    Safety Considerations
    125
    
    Detailed Circuit Description
    127
    
    DC Input
    128
    
    Inverter Circuit
    128
    
    Turn off Circuit
    128
    
    Inverter Balance
    130
    
    Operating Range
    130
    
    Replaceable Electrical Parts
    139
    
    Diagrams and Circuit Board Illustrations
    163
  - Main M Odule
    166
  - A2 Vertical M Odule
    168

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