Tektronix TDS2024C

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Replaceable Par ts

Table 28: Replaceable parts list, 2-channel models (cont.)

-14 220-0297-00 4

LCD, NUT, M4

-15 210-1610-00 4

LCD, STANDARD SPRING WASHER, M4

-16 441-271-00 2

SHIELD, GUARD/VIBRATION DAMPER

-17 850-0115–70 1

DISPLAY ASSY; COLOR

-18 348-1525-00 2

FOOT; F RONT, SANTOPRENE, BLACK, 64 DEROMETER, TEXTURED

TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual 91

Main Page

Table of Contents3
General Safety Summary8
Service Safety Summary10
Preface11
Manual Conventions11
Related Documentation11
Specifications13
Signal Acquisition System Characteristics13
Table 1: Signal Acquisition System Characteristics13
Time Base System19
Table 2: Time Base System19
Triggering System21
Table 3: Triggering System21
Display Specifications25
Table 4: Display Specifications25
Interfaces and Output Ports Specifications26
Data Handling Characteristics26
Power Distribution System26
Table 5: Interfaces and Output Ports Specifications26
Table 6: Data Handling Characteristics26
Table 7: Power Distribution System26
Mechanical Characteristics27
Environmental Performance27
Data Logging System Characteristics (Not Available on TDS1000C-EDU Models)27
Table 8: Mechanical Characteristics27
Table 9: Environmental Performance27
Limit Testing System Characteristics (Not Available on TDS1000C-EDU Models)28
Table 10: Data Logging System Characteristics (Not Available on TDS1000C-EDU Models)28
Table 11: Limit Testing System Characteristics (Not Available on TDS1000C-EDU Models)28
Where to Find Operating Information31
Theory of Operation33
System Level Block Diagrams34
Figure 1: Module-Level Block Diagram (2-Channel)34
Figure 2: Module-Level Block Diagram (4-Channel)35
Main Board36
Acquisition System36
Processing and Display System37
Input Signal Interface37
Probe Compensation37
External Trigger37
Main Board Power37
Power Supply37
Display Module38
Front Panel38
Two-Channel Oscilloscopes38
Four-Channel Oscilloscopes38
Performance Verification39
Required Equipment39
Table 12: Performance Verification39
Test Record40
Table 13: Test Record40
Performance Verification Procedures41
Self Test41
Self Calibration41
Check DC Gain Accuracy41
Check Bandwidth43
Check Sample Rate Accuracy and Delay Time Accuracy44
Check Edge Trigger Sensitivity45
Check External Edge Trigger Sensitivity47
Check Vertical Position Accuracy48
Figure 3: Example of a Line Graph for the Vertical Position Accuracy Test51
Adjustment Procedures53
Required Equipment53
Adjustment Procedure53
Table 14: Required Equipment53
Enable the Service Menu54
Figure 4: Adjustment Setups55
Adjustment Procedure56
Table 15: Adjustment Steps57
Maintenance61
Preventing ESD61
Inspection and Cleaning61
General Care62
Interior Cleaning62
Exterior Cleaning62
Exterior Inspection63
Interior Inspection63
Table 16: External Inspection Checklist63
Cleaning Procedure, Interior64
Table 17: Internal Inspection Checklist64
Removal and Installation Procedures66
Summary of Procedures66
Figure 5: Locator for Trim and Cabinet Removal (4-Channel Model Shown)67
Figure 6: Locator for Internal Modules (4-Channel Model Shown)67
Required Tools68
Rear Feet68
Flip Feet69
Front-Panel Knobs69
Power Button69
Rear Case70
Front Feet71
Power Supply Module72
Internal Assembly73
Front-Panel Cable74
Main Board Module (Serial Number C030000 or Later)75
Figure 7: Instrument Cable Locations (Main Board SN C030000 or Later)76
Display Module78
Front-Panel Module79
Keypad80
Troubleshooting81
Adjustment after Repair81
Required Tools and Equipment81
Troubleshooting Tree81
Table 18: Tools and Equipment81
Figure 8: Oscilloscope Troubleshooting Tree82
Figure 9: Oscilloscope Troubleshooting Tree83
Figure 10: Oscilloscope Troubleshooting Tree84
Probe Comp Output86
Table 19: Probe Comp Output86
Troubleshooting the Power Supply87
Table 20: Troubleshooting the Power Supply87
Troubleshooting the Display88
Troubleshooting the Front Panel89
Table 21: Troubleshooting the Front Panel - Service89
Table 22: Troubleshooting the Front Panel - Service Diag89
Table 23: Troubleshooting the Front Panel - Mfg. Test89
Table 24: Expected Signals at J20290
Troubleshooting the Main Board92
Table 25: Troubleshooting the Main Board92
Table 26: List of Error Codes93
Repackaging Instructions95
Diagrams97
Figure 11: TDS2000C and TDS1000C-EDU Series Block Diagram98
Replaceable Parts99
Parts Ordering Information99
Using the Replaceable Parts List100
Table 27: Replaceable Parts List100
Parts Lists and Exploded Views101
Figure 12: Exploded Diagram, 2-Channel Models101
Table 28: Replaceable Parts List, 2-Channel Models102
Figure 13: Exploded Diagram, 4-Channel Models104
Table 29: Replaceable Parts List, 4-Channel Models105
Figure 14: Power Supply Module, Cables, and Wires106
Table 30: Replaceable Parts List; Power Supply Module, Instrument Cables, and Wires106
Figure 15: Exploded Diagram, Back Case and Trim108
Table 31: Replaceable Parts List, Back Case and Trim109
Appendix A: Example of a Vertical Position Accuracy Test Spreadsheet111
Sample Filled-In Vertical Position Accuracy Test Spreadsheet111
Table 32: Vertical Position Accuracy Test Spreadsheet111

Tektronix TDS2024C

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