User Manuals: Tektronix 7B85 Delaying Time Base

Manuals and User Guides for Tektronix 7B85 Delaying Time Base. We have 3 Tektronix 7B85 Delaying Time Base manuals available for free PDF download: Instruction Manual

Tektronix 7B85 Instruction Manual (167 pages)

Delaying time base with options

Brand: Tektronix | Category: Test Equipment | Size: 10 MB

Table of Contents
4
List of Illustrations
7
List of Tables
8
Safety Summary
9
Operating Instructions
11
- Features
  11
- Installation
  11
- Controls, Connectors, and Indicators
  11
- Functional Check
  11
  - Setup Procedure
    14
  - Sweep Functions
    14
    
    Normal Sweep
    14
    
    Delaying and Delayed Sweep
    14
  - Triggering Functions
    15
- General Operating Information
  16
  - Triggering Switch Logic
    16
  - Triggering Modes
    16
  - P-P Auto
    16
  - Auto
    16
  - Normal
    16
  - SINGLE Sweep
    16
  - Trigger Coupling
    17
    
    Ac Lf Rej
    17
    
    Ac Hf Rej
    17
    
    Internal
    17
    
    Line
    17
    
    External
    17
  - Trigger Slope
    18
  - Trigger Level
    18
  - Time Measurement
    18
  - Sweep Magnification
    18
  - Variable Hold off
    18
  - Horizontal Sweep Rates
    18
  - Delay-Time Operation
    18
    
    TIME Operation in a Dual-Beam Oscilloscope Mainframe
    21
  - TIME Operation
    21
  - Mainframe Operating Modes
    21
- Applications
  23
  - Delayed-Sweep Measurements
    23
    
    Time-Interval Measurements (Delay-Time Mode)
    23
    
    Differential Time-Interval Measurements
    24
    
    Triggered Delayed-Sweep Magnification
    28
  - Independent Time-Interval Measurements
    28
Specification
29
- Time Mode)
  30
- Standard Accessories
  32
Theory of Operation
33
- Block Diagram Description
  33
  - Trigger Generator
    33
  - Sweep Generator
    33
  - Pickoff Amplifiers and Delay Gate Generator
    33
  - Logic
    33
  - Digital Voltmeter
    33
- Detailed Circuit Description
  35
  - Logic Fundamentals
    35
  - Non-Digital Devices
    35
  - Front-Panel Distribution
    38
Trigger Generator
38
- External Source
  38
- Internal and Line Source
  38
- Trigger Source Selector and Amplifier
  38
  - Trigger Source
    40
- Peak-To-Peak Auto
  40
- Slope Selector and Trigger Generator
  40
- Gate Generator
  41
Logic
42
- Sweep Modes
  42
- Hold off Timing
  43
- Lockout Buffer Amplifier
  43
- Hold off Generator
  43
- Hold off Output Amplifier
  43
- Delay Pickoff Inhibit
  44
- Delay Mode Control
  44
- Auxiliary Y-Axis Generator
  44
Sweep Generator
45
- Timing Current Source
  45
- Ramp Generator
  45
- Output Preamplifier
  45
- Sweep Gate Generator
  48
Pickoff Amplifiers and Delay Gate Generator
48
- Delay Time Comparison
  48
- Delay Time Comparison (SN B088749 & Below)
  48
  - Time Comparison (SN B088750 & Up)
    48
- (SN B088749 & Below)
  50
  - Time Comparison
    50
- Delay Bias and Second Delay Pickoff Clamp
  50
- Delay Comparison Voltage Switch
  50
- Delay Gate Generator
  50
- Symbol Enable
  51
Digital Voltmeter
51
Time/Division and Readout Switching
55
- Basic Readout System
  55
- Time/Division and Readout
  55
- Delay Time Readout
  55
Maintenance
57
Preventive Maintenance
57
Cleaning
57
- Exterior
  57
- Interior
  57
- Switch Contacts
  57
Visual Inspection
57
Lubrication
58
- Cam Switch Lubrication
  58
Semiconductor Checks
58
Adjustment after Repair
58
Troubleshooting Aids
59
- Diagrams
  59
- Voltages and Waveforms
  59
- Circuit-Board Illustrations
  59
- Switch Cam Identification
  59
- Diode Color Code
  59
- Wiring Color Code
  59
- Semiconductor Basing
  59
- Inter-Board Pin Connector Identification
  59
- Performance Check and Adjustment
  61
Troubleshooting
59
Troubleshooting Equipment
61
Troubleshooting Techniques
62
- Troubleshooting Procedure
  62
Corrective Maintenance
66
Obtaining Replacement Parts
66
Soldering Techniques
66
Component Removal and Replacement
67
- Circuit Boards
  67
- Switches
  70
- Semiconductors
  70
- Interconnecting Pins
  70
- Circuit-Board Pins
  71
- Front-Panel Lights
  71
Adjustment after Repair
71
Instrument Repackaging
71
Performance Check and Adjustment
76
- Preliminary Information
  76
  - Adjustment Interval
    76
  - Tektronix Field Service
    76
  - Using this Procedure
    76
- Test Equipment Required
  76
  - Special Fixtures
    76
  - Test Equipment Alternatives
    76
- Index to Performance Check and Adjustment Procedure
  79
- Preliminary Procedure
  79
- Triggering System
  80
- Horizontal System
  85
  - Magnified Sweep
    94
Instrument Options
95
Replaceable Electrical Parts
96
Diagrams and Circuit Board Illustrations
113
Replaceable Mechanical Parts
154

Tektronix 7B85 Instruction Manual (172 pages)

Delaying time base with options

Brand: Tektronix | Category: Time Base | Size: 16 MB

Table of Contents
2
And Indicators
5
Setup Procedure
13
Sweep Functions
13
- Normal Sweep
  13
- Magnified Sweep
  13
- Delaying and Delayed Sweep
  13
Triggering Functions
14
Triggering Switch Logic
15
7"Riggering Modes
15
P-P Auto
15
Auto
15
Normai
15
Trigger Coupling
16
- Ac Lf Rej
  16
- Internal
  16
- Line
  16
- External
  16
Horizontal Sweep Rates
17
Time Measurement
17
Sweep Magnification
17
Variable Hold off
17
Delay-Time Operation
17
Section 2 SPECIFICATION
29
Sweep Generator
29
Digital Voltmeter
34
Front-Panel Distribution
39
Internal and Line Source
39
Trigger Source Selector and Amplifier
39
Peak-To-Peak Auto
41
Slope Selector and Trigger Generator
41
Gate Generator
42
Sweep Modes
44
Hold off Timing
44
Lockout Buffer Amplifier
44
Hold off Generator
44
Hold off Output Amplifier
44
Delay Pickoff Inhibit
45
Delay Mode Control
45
Auxiliary Y-Axis Generator
45
Timing Current Source
46
Ramp Generator
46
Output Preamplifier
46
Sweep Gate Generator
49
Delay Time Comparison
49
O 'Time Comparison (SN ~088750 & Up)
49
Delay Bias and Second Delay Pickoff Clamp
51
Delay Comparison Voltage Switch
51
Delay Gate Generator
51
Delay Comparison Voltage to Ramp Converter (SN ~088749 & Below)
54
- Comparator (SN B088750 & Up)
  54
- Comparator (SN 8088749 & Below)
  54
- Ramp Control
  54
- Divide by 4 Counter
  54
- Timer
  54
- Reference Current Source
  55
- Reference Current Inverter
  55
- Reference Current Switch
  55
- Counter and Encoder
  55
- Counter Transfer Control
  56
- Zero Count Correction
  56
- Basic Readout System
  56
- Time/Division and Readout
  56
- Delay Time Readout
  56
Cleaning
58
- Exterior
  58
- Interior
  58
- Switch Contacts
  58
Visual Inspection
58
Lubrication
59
- Cam Switch Lubrication
  59
- Semiconductor Checks
  59
- Adjustment after Repair
  59
- Troubleshooting
  59
- Diagrams
  60
- Voltages and Waveforms
  60
- Circuit-Board Illustrations
  60
- Switch Cam Identification
  60
- Diode Color Code
  60
- Wiring Color Code
  60
- Semiconductor Basing
  60
- Inter-Board Pin Connector Identification
  60
- Multi-Pin Connector Identification
  60
- Interface Connector Pin Locations
  60
- Performance Check and Adjustment
  62
Troubleshooting Techniques
66
Replacement
71
- Switches
  71
- Semiconductors
  71
- Interconnecting Pins
  71
- Circuit-Board Pins
  72
- Front-Panel Lights
  72
Instrument Repackaging
72
Section 5 PERFORMANCE CHECK and ADJUSTMENT
78
- Adjustment Interval
  78
- 'Tektronix F=Ield Service
  78
- Using this Procedure
  78
- Special Fixtures
  78
- Test Equipment Alternatives
  78
And Adjustment Procedure
78
Preliminary Procedure
81
Triggering System
81
Horizontal System
81

Tektronix 7B85 Instruction Manual (152 pages)

DELAYING TIME BASE WITH OPTIONS

Brand: Tektronix | Category: Time Base | Size: 19 MB

Table of Contents
3
Change Information
5
List of Tables
7
Safety Summary
8
Do Not Operate in Explosive Atmospheres
8
Do Not Service or Adjust Alone
8
Installation
10
Controls, Connectors and Indicators
10
Functional Check
10
Sweep Functions
13
Triggering Functions
14
General Operating Information
15
Triggering Switch Logic
15
Applications
15
SINGLE Sweep
15
Trigger Coupling
16
Trigger Source
16
Time Measurement
19
Mainframe Operating Modes
20
Time-Interval Measurements (Delay-Time Mode)
22
Measurements (a Time Mode)
23
Delayed-Sweep Magnification
23
Independent Time-Interval
27
Specification
28
Electrical Characteristics
28
Variable Time Delay
29
Environmental Characteristics
31
Physical Characteristics
31
Standard Accessories
31
Theory of Operation
32
Block Diagram Description
32
Sweep Generator
32
Pickoff Amplifiers and Delay Gate Generator
32
Digital Voltmeter
32
Detailed Circuit Description
34
Logic Fundamentals
34
Basic Logic Reference
35
Front-Panel Distribution
37
Trigger Generator
37
External Source
37
Trigger Source Selector and Amplifier
37
External Input
39
Slope Selector and Trigger Generator
39
Gate Generator
40
Logic
41
Sweep Modes
41
Hold off Timing
42
Hold off Output Amplifier
42
Delay Pickoff Inhibit
43
Delay Mode Control
43
Auxiliary Y-Axis Generator
43
Sweep Generator
44
Output Preamplifier
44
Sweep Gate Generator
44
Timing Current Source
45
Ramp Generator
45
Output Preamplifier
46
Sweep Gate Generator
46
Delay Time Comparison
47
Delay Time Comparison (SN B088749 & Below)
47
A Time Comparison
49
A Time Comparison (SN B088749 & Below)
49
Delay Bias and Second Delay Pickoff Clamp
49
Delay Comparison Voltage
50
Delay Gate Generator
50
Delay Comparison Voltage to Ramp Converter (SN B088750 & Up)
52
Delay Comparison Voltage to Ramp
52
Ramp Control
52
Converter (SN B088749 & Below)
52
Reference Current Switch
53
Time/Division Readout
54
Readout Character Selection
55
Preventive Maintenance
56
Visual Inspection
56
Semiconductor Checks
57
Adjustment after Repair
57
Troubleshooting Aids
58
Circuit-Board Illustrations
58
Troubleshooting Equipment
60
Troubleshooting Techniques
61
Troubleshooting Procedure
61
Corrective Maintenance
65
Obtaining Replacement Parts
65
Soldering Techniques
65
Component Removal and Replacement
66
Interconnecting Pins
69
Front Panel Lights
70
Instrument Repackaging
70
Shipping Carton Test Strength
74
Performance Check and Adjustment
75
Preliminary Information
75
Test Equipment
75
Test Equipment
76
Preliminary Procedure
78
Triggering System
79
Sweep Mode
79
Delay Time Readout Bias
86
Delay Time
89
A Time Accuracy
90
Sweep Timing
92
Magnified Sweep Timing
93
Instrument Options
94
Parts Ordering Information
95
Cross Index - Mfr. Code Number to Manufacturer
96
Mechanical Parts
113
Diagrams and Circuit Board Illustrations
120
Eee
137
Delay Gate Generator
138

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