Tektronix 485 Manuals

Manuals and User Guides for Tektronix 485. We have 3 Tektronix 485 manuals available for free PDF download: Instruction Manual, Service Instructions Manual

Tektronix 485 Instruction Manual

Tektronix 485 Instruction Manual (197 pages)

Brand: Tektronix | Category: Test Equipment | Size: 43.43 MB

Table of Contents

Table of Contents
2
Specification

4
- Introduction
  4
- Probe Performance
  6
- A and B Triggering
  6
- Horizontal Deflection
  7
- Calibrated Sweep Delay
  7
- Crt
  8
- Calibrator
  9
- Other Characteristics
  9
- Environmental Characteristics
  9
- General
  10
- Preliminary Information
  10
- Controls and Connections
  10
  - Front Panel
    10
  - Rear Panel
    13
  - Bottom Side
    13
Circuit Description

14
- Introduction
  14
- 1 Megohm Buffer a M P Lifie R
  14
- Signal Channel Switch
  15
- Internal Trigger Amplifier
  15
- Main Vertical Amplifier
  15
- Scale Factor Readout
  16
- Vertical Mode Control
  16
- Z Axis
  16
- A Trigger Amplifier
  16
- A E X T Trigger Identify
  16
- A Trigger Generator
  17
- B Trigger Generator
  17
- A and B Sweeps
  17
- Horizontal Amplifier
  18
- Horizontal Control
  18
- Power Inverter/Regulator
  19
- Line Filter
  19
- Line Input Circuit
  19
- Start Network
  20
- Inverter
  20
- Procedure for Converting the 485 to DC Operation
  22
- Low Voltage Supplies
  22
- Power Supply Protection Circuit
  23
  - Stop Monostable
    23
  - Balance Node
    24
  - Overcurrent Protection
    25
  - Low Line Voltage Protection
    25
  - Sampling Period Timer and Overvoltage Protection
    25
- CRT Circuit
  25
  - Filament Voltage
    25
  - High Voltage Supplies
    25
  - Anode Supply
    25
  - Cathode Supply
    25
- Cathode Regulator
  25
  - Grid DC Restorer
    26
  - Focus DC Restorer
    26
  - Beam Current Limit
    27
  - Power Supply Shutdown Caused by Excessive Beam Current
    27
  - CRT Control Circuits
    27
  - Auto Focus Circuit
    27
  - Calibrator
    28
Maintenance

29
- Introduction
  29
- Cleaning
  29
- Lubrication
  30
- Visual Inspection
  31
- Semiconductor Checks
  31
- Recalibration
  31
- Troubleshooting
  31
  - Introduction
    31
  - Troubleshooting Aids
    31
  - Circuit Boards
    31
  - Troubleshooting Equipment
    33
  - Troubleshooting Techniques
    34
  - Special Troubleshooting Information
    35
- Corrective Maintenance
  39
- Obtaining Replacement Parts
  39
- Soldering Techniques
  39
- Component Replacement
  40
- Circuit Board Replacement
  40
  - Timing Board Removal
    40
  - Transformer Board Removal
    41
  - Inverter Board Removal
    42
- Semiconductor Replacement
  42
- A. Circuit-Board Pins
  42
- C. End-Lead Pin Connectors
  43
- Cathode Ray Tube Replacement
  43
- Repackaging for Shipment
  43
- Interboard Comb Connection Locations
  44
Calibration

45
- Introduction
  45
- T E K T R O N IX Field Service
  45
- Using this Procedure
  45
- Test Equipment Required
  45
  - Special Calibration Fixtures
    45
  - Calibration Equipment Alternatives
    45
- Performance Check
  45
- Calibration Procedure
  45
Rackmounting

69
- Introduction
  69
- Rack Dimensions
  69
- Slide out Tracks
  69
- Mounting Procedure
  69
- Alternate Rear Mounting Methods
  70
- Removing or Installing the Instrument
  70
- Slide out Track Lubrication
  70
Electrical Parts List

75
Diagrams and Circuit Board Illustrations

123
- Change Information
  193

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Tektronix 485 Service Instructions Manual

Tektronix 485 Service Instructions Manual (192 pages)

Brand: Tektronix | Category: Test Equipment | Size: 33.14 MB

Table of Contents

Table of Contents
2
Section 1 Specification
4
- Vertical Deflection System
  4
- Probe Performance
  6
- Horizontal Deflection
  7
- Calibrated Sweep Delay
  7
- Crt
  8
- Calibrator
  9
- Other Characteristics
  9
- Environmental Characteristics
  9
- Controls and Connections
  10
  - Front Panel
    10
  - Rear Panel
    13
  - Bottom Side
    13
Circuit Description
14
- 50 N Attenuator
  14
- Megohm Buffer
  14
- 50 N Overload Protection
  14
- Vertical Preamplifier
  14
- Signal Channel Switch
  15
- Internal Trigger Amplifier
  15
- Main Vertical Amplifier
  15
  - Amplifier
    15
  - Circuit
    15
  - Circuit
    18
  - Focus DC Restorer
    26
  - Beam Current Limit
    27
  - Power Supply Shutdown
    27
  - CRT Control Circuits
    27
  - Auto Focus Circuit
    27
- Introduction
  29
- Cover Removal and Cleaning
  29
- Lubrication
  30
- Visual Inspection
  31
- Semiconductor Checks
  31
- Recalibration
  31
- Troubleshooting
  31
- Introduction
  31
  - Troubleshooting Aids
    31
  - Circuit Boards
    31
  - Troubleshooting Equipment
    33
  - Troubleshooting Techniques
    34
  - Special Troubleshooting Information
    35
- Corrective Maintenance
  39
- Obtaining Replacement
  39
- Soldering Techniques
  39
  - Component Replacement
    40
- Circuit Board Replacement
  40
  - Timing Board Removal
    40
  - Transformer Board Removal
    41
  - Inverter Board Removal
    42
- Semiconductor Replacement
  42
- Circuit Board Pins
  42
- End Lead Pin Connectors
  43
- Cathode Ray Tube
  43
- Repackaging for Shipment
  43
- Calibration
  45
- Introduction
  45
- TEKTRONIX Field Service
  45
- Using this Procedure
  45
- Test Equipment Required
  45
  - Special Calibration Fixtures
    45
  - Calibration Equipment
    45
- Performance Check
  48
- Calibration Procedure
  52
Rackmounting
69
- Introduction
  69
- Rack Dimensions
  69
- Slide out Tracks
  69
- Mounting Procedure
  69
- Alternate Rear Mounting Methods
  70
- Removing or Installing the Instrument
  70
- Slide out Track Lubrication
  70
Diagrams and Circuit Board Illustrations
123
- 485/R485 Service
  124
- Parts
  164
- Replacement
  164
- L • SETSCREW:5-40
  171
- Nut,Plain,Hex
  171
- Inch,Hex Soc Stl
  171
- Inch,Hex Stl
  171
- Inch Brs IDX 0. Stl
  177
- Obd
  177

Tektronix 485 Instruction Manual

Tektronix 485 Instruction Manual (192 pages)

OSCILLOSCOPE

Brand: Tektronix | Category: Test Equipment | Size: 27.28 MB

Table of Contents

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