Tektronix 7K14 Manuals

Manuals and User Guides for Tektronix 7K14. We have 1 Tektronix 7K14 manual available for free PDF download: Instruction Manual

Tektronix 7K14 Instruction Manual (269 pages)

SPECTRUM ANALYZER

Brand: Tektronix | Category: Measuring Instruments | Size: 49 MB

Table of Contents
4
List of Illustrations
8
Operators Safety Summary
10
Grounding the Product
10
Service Safety Summary
12
General Information
14
Specification
14
Electrical Characteristics
15
Frequency Related
15
Amplitude Related
16
RF Attenuator
16
Input Signal Characteristics
17
Typical Filter Shape, Phase Noise Sidebands and Sensitivity for the 7L14
19
Environmental Characteristics
20
Operating Instructions
21
Unpacking and Initial Inspection
21
Repackaging for Shipment
21
Front-Panel Controls
22
Controls, Indicators and Connectors
22
Frequency Controls
22
Triggering Source
22
Frequency Controls
23
Display Controls
24
Span Controls
25
Amplitude Controls
26
Front-Panel Calibration
29
Panel Calibration
29
Calibrate Sweep Span
31
Calibrating the Sweep Span
31
Contrast Control
31
Functional or Operational Check
32
RESOLUTION Bandwidth
35
Check Resolution Bandwidths and
36
Measuring Residual
37
Check Residual Fm'ing
38
Check Sweep Circuit Operation with the TIME/DIV Selectorin the Manual and off Positions
38
Check Digital Storage
38
Using Digital Storage to Measure the
38
Resolution, Sensitivity, and Frequency Span
40
Triggering the Display
41
Manual Scan of the Spectrum
41
Using an External Sweep Source
42
External Trigger Operation
42
Digital Storage
42
Using the CAL out Signal Reference
43
Amplitude Measurements
43
Theory of Operation
47
Block Diagram
47
Detailed Circuit Description
48
Phase Lock and Frequency
51
Functional Block Diagram of 2Nd lo Phase
52
Frequency Tuning Control and
53
Marker Generator
53
Adjustment for the 16-19 Mhz Oscillator
53
YIG Driver
54
Filter Circuits
54
Video Filter, Baseline Clipper and Vertical Output
56
Log Converter Curve
56
Frequency Readout
57
Functional Block Diagram of the Frequency
58
Uncal Circuit
59
Vertical Section
61
Reference Level Readout
64
History Information
66
Equipment Required
66
Performance Check Procedure
67
Test Equipment Set up for Checking Accuracy of Center Frequency Readout and
68
Check Display Mode Accuracy
69
Center Frequency
69
Check RF Attenuator Accuracy
71
Check if Gain Step Accuracy
72
Check Noise Sidebands
73
Check Triggering Sensitivity
73
Power Module
74
Display Showing Time Markers for Checking
74
Check Display Flatness
75
Test Equipment Set up for Checking
75
Check Resolution Bandwidth Accuracy and Shape Factor
76
Bandwidths
77
Measuring Bandwidth and Shape Factor
77
Measuring Residual FM
78
Check Sensitivity
79
Test Equipment Set up for Checking
81
Resistive Bridge Used for Measuring 2Nd Order IM Products
81
Check Third Order Intermodulation Products
82
Adjustment Procedure
83
Introduction
83
Time Base Section
83
Adjust Sweep Length, Offset and
83
Calibrating the Sweep Ramp
84
Location of Adjustments on the Sweep
85
Function if Alignment
85
Adjust the LIN Mode Baseline Offset
86
Adjust the Gain Compensation and Calibrate the Reference Level
86
Position Control
87
1St lo PHASE LOCK LOOP
87
Error Amplifier Offset Adjustment
87
Frequency Span and 1St lo Calibration
88
Adjust the Frequency Span of the 1St
88
Frequency Span
88
Calibrate the Center Frequency and Frequency Readout
89
Location of the YIG Driver and Voltage Memory Adjustments
89
Location of R1960, Sweep Driver
90
Frequency Readout Circuit Adjustments
90
Calibration of Digital Storage
91
Marker Gain and Marker Offset
91
Setting B-SAVE a Reference Level
92
Adjust Digital Storage Compensation
92
Phase Lock Calibration Adjustments
93
Adjust the Bandpass of the 105 Mhz if Amplifier and 300 Khz Filter
94
Wide-Band Filter Adjust C456
95
Typical Response Characteristics for the
95
Adjust the Resolution Gain Leveling Compensation
96
Connections and Adjustments for Adjusting
96
300 Khz Filter Adjustments and Typical
96
Adjust the Post-Resolution Amplifier Gain
97
Resolution Gain Compensating Adjustments
98
Gain
99
Minimize Intermodulation Products
99
50 Mhz Calibrator
99
Maintenance Instructions
101
Access to the Interior of the 7L14
101
Static Sensitive Components
101
Performance Checks and Recalibration 00
102
Relative Susceptibility to Static Discharge Damage
102
Preventive Maintenance
102
Transistor and Integrated Circuit Checks
103
Troubleshooting
103
Circuit Board Illustrations
103
Wiring Color Code
103
Resistor Color Code
104
Diode Color Code
104
Configuration
104
Diode Checks
105
General Troubleshooting Technique
106
Corrective Maintenance
106
Obtaining Replacement Parts
106
Parts Repair and Return Program
106
Maintenance of the Left Side
108
Replacing Assemblies
108
Replacing the Differential Attenuator
108
Replacing the 2.095 Ghz Filter
108
Calibration Procedure
109
Replacing the 2Nd Mixer Assembly
109
Adjust the Response of the Filter and Mixer Assemblies
111
Replacing Switches
111
Replacing the Display Mode
111
Maintenance of the Right Side
112
Replacing Assemblies
112
Replacing the Frequency Tuning
112
Replacing the Sweep Circuit Board
112
Replacing the Function if Board
112
Replacing the Resolution Circuit Board Assembly
112
Replacing Circuit Boards Inthe Phase Lock Circuit Assembly
114
Diagrams and Circuit Board Illustrations
166
Sync Generator
166
Manual Change Information
260
Spectrum Analyzer
261
Assembly A24
267

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Tektronix 7K14 Instruction Manual (269 pages)

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