Tektronix THS710A User Manual download pdf (Page 49)

Performance Verification

THS710A, THS720A, THS730A & THS720P Service Manual

4–5

This procedure uses internal routines to verify that the TekScope instrument

functions and passes its internal self tests. No test equipment or hookups are

required. Start the self test with the following setup:

SCO

UTI

ITY

System Diag

Loop Once

Execute

—

OK Run Test

A dialog box displays the result when the self test completes. Press the CLEAR

MENU button to continue operation.

Execute Self Test

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Service Manual 1
THS710A, THS720A 1
THS730A & THS720P 1
TekScope 1
070-9752-01 1
WARRANTY 3
Service Assurance 4
Table of Contents 5
List of Figures 7
List of Tables 8
General Safety Summary 9
Symbols and Terms 10
Battery Recycling 10
Service Safety Summary 11
Related Manuals 13
Conventions 14
Specifications 16
Operating Information 31
Using External Power 32
Understanding the Front Panel 33
Using Meter Mode 34
Using the Menu System 35
Using the Dedicated 37
Top panel 38
Side panel 38
Compensating the 39
Oscilloscope Probes 39
Attaching the Reference 40
Leads Correctly 40
Beware of High Voltages 40
Theory of Operation 42
Display Module 43
Switch Assembly 43
Performance Verification 45
Test Record 46
Signal Path Compensation 48
Execute Self Test 49
Check Oscilloscope DC 50
Measurement Accuracy 50
Check Oscilloscope 52
Channel 1 Bandwidth 52
Channel 2 Bandwidth 54
Sample Rate and Delay 56
Time Accuracy 56
Channel 1 Edge Trigger 58
Sensitivity 58
Channel 2 Edge Trigger 60
Check Meter DC Voltage 62
Accuracy 62
Check Meter AC Voltage 64
Check Meter Resistance 66
Adjustment Procedures 70
Adjustment-lockout 73
Oscilloscope Adjustment 74
Procedure 76
Completing the 76
Adjustment Process 76
Meter Adjustment 77
Inspection and Cleaning 84
Preparation 87
List of Modules 87
Summary of Procedures 88
Tools Required 89
Tilt Stand 90
Front-Panel Label 92
Front Cover 93
Display shield 95
Front cover 95
Foam pad 95
Gasket material 96
Trim tails to 96
Overlap gasket material 96
Inverter board 99
Display cable connector 99
Switch flex-circuit board 99
Display module 99
Contact side of cable 100
Back Cover 101
Maintenance 104
Complete Disassembly 105
Typical locating marks 107
Align this foam pad with 107
Insert circuit board tabs 109
Route battery cable into 109
Troubleshooting 110
Test here 111
Backlight 114
Executing Diagnostics 117
Input Connections 118
Other Troubleshooting 119
Unpacking 122
Repacking 122
Electrical Parts List 127
Diagrams 130
Mechanical Parts List 133
Module Servicing 134
Abbreviations 134
Mfr. Code to Manufacturer 134
Cross Index 134
Manufacturers Cross Index 135
Replaceable Parts List 136
Figure 10–1: Exploded diagram 137

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Tektronix THS710A User Manual Page 49

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