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Tektronix Manuals
Measuring Instruments
TCP312
Service manual
Tektronix TCP312 Service Manual
Tcpa300 series; tcpa400 series ac/dc current probes
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User manual
(80 pages)
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Contents
Table of Contents
Bookmarks
Table of Contents
Service Manual
Table of Contents
General Safety Summary
Service Safety Summary
Compliance Information
EMC Compliance
Environmental Considerations
Preface
Manual Conventions
Performance Verification Overview
Performance Verification and Functional Checks
Table 1: Amplifier Checks
Table 2: Probe Performance Verification Checks
Test Procedure Conditions
Equipment Preparation
TCPA300 and TCPA400 Performance Verification
Equipment Required
Table 3: Required Test Equipment
Making DC Current Loops
Front-Panel Display
Figure 1: Check LED Functionality
DC Gain Accuracy
Figure 2: Equipment Setup for DC Gain Accuracy Test
Table 4: Equipment Settings
Table 5: DC Gain Accuracy Test for the TCPA300 and TCPA400
Bandwidth
Figure 3: Bandwidth Test Setup
Table 6: Equipment Settings for Bandwidth Check
Table 7: TCPA300 Bandwidth Measurements
Table 8: TCPA400 Bandwidth Measurements
AC Coupling
Figure 4: AC Coupling Test Setup
Degauss
Figure 5: Setup for Degaussing the Current Probe
Table 9: TCPA300 and TCPA400 AC Coupling Measurements
Current Overload Test (TCPA300 Only)
Figure 6: Overload Test Setup
Table 10: Maximum Current Ratings for TCPA300-Compatible Probes
TCPA300 Amplifier Test Record
TCPA400 Test Record
TCP305 and TCP312 Performance Verification
Required Test Equipment
Table 11: Required Test Equipment
DC Gain Accuracy
Figure 7: DC Gain Accuracy Test Setup for TCP305 and TCP312
Table 12: Equipment Settings for DC Gain Accuracy
Table 13: DC Gain Accuracy Test for the TCP305 and TCP312
Rise Time
Figure 8: Rise Time Test Setup for the TCP305 and TCP312
Table 14: Equipment Settings for Rise Time
Bandwidth
Figure 9: Bandwidth Test Setup for TCP305 and TCP312
Table 15: Equipment Settings for Bandwidth
Table 16: Bandwidth Test for the TCP305 and TCP312
TCP305 Current Probe Test Record
TCP312 Current Probe Test Record
TCP303 and TCP404XL Performance Verification
Equipment Required
Table 17: Required Test Equipment
DC Gain Accuracy
Figure 10: DC Gain Accuracy Test Setup for the TCP303 and TCP404XL
Table 18: Equipment Settings for DC Gain Accuracy
Table 19: DC Gain Accuracy Test Worksheet for the TCP303 and TCP404XL
Rise Time
Figure 11: Rise Time Test Setup for the TCP303 and TCP404XL
Table 20: Equipment Settings for Rise Time
Bandwidth (TCP303)
Figure 12: Bandwidth Test Setup for TCP303
Table 21: Equipment Settings for Bandwidth
Bandwidth (TCP404XL)
Table 22: Bandwidth Test for the TCP303
TCP303 Current Probe Test Record
TCP404XL Current Probe Test Record
Adjustment Procedures Overview
Table 23: Amplifier and Probe Adjustments
TCPA300 and TCPA400 Amplifier Adjustments
Required Test Equipment
Accessing the Adjustments
Table 24: Required Test Equipment
TCPA300 Amplifier
Figure 13: Amplifier Adjustments
Table 25: TCPA300 Gain Adjustments
TCPA400 Amplifier
Figure 14: Gain Adjustment Locations
Table 26: TCPA400 Gain Adjustments
TCP305 and TCP312 Adjustments
Required Test Equipment
Accessing the Adjustments
Figure 15: TCP305 and TCP312 DC Gain Adjustment Location
Table 27: Required Test Equipment
TCP305 and TCP312 DC Gain Adjustment
Table 28: Settings for DC Gain Adjustment
Figure 16: DC Gain Adjustment Setup for TCP305 and TCP312
Table 29: DC Gain Accuracy Adjustments for the TCP305 and TCP312
TCP303 and TCP404XL Adjustments
Required Test Equipment
Table 30: Required Test Equipment
Adjustment Locations
TCP303 and TCP404XL Transient Response and Coarse Gain Adjustment
Figure 17: TCP303 and TCP404XL Adjustment Locations
Figure 18: TCP303 and TCP404XL Transient Response and Coarse Gain Adjustment Setup
Table 31: Settings for Transient Response and Preliminary Gain Adjustments
DC Gain Adjustment
Figure 19: DC Gain Accuracy Adjustment Setup
Table 32: Equipment Settings for DC Gain Accuracy
Table 33: DC Gain Accuracy Adjustments for the TCP303 and TCP404XL
Maintenance
Service Strategy
Preventive Maintenance
Disassembly
Amplifiers
Equipment Required
Table 34: Equipment Required
Removing the Outer Case and Internal Covers
Figure 20: Removing the Case from the Amplifier
Figure 21: Removing the Right-Side Inner Panel
Figure 22: Removing the Left-Side Inner Panel
Replacing the Front Panel Assembly
Figure 23: Disconnecting the Front-Panel Assembly
Replacing the Amplifier Board
Figure 24: Removing the Three Heat Sink Clips
Figure 25: Removing the Amplifier Board
Replacing the Power Supply
Figure 26: Replacing the Power Supply
Replacing the Fan
Figure 27: Removing the AC Power Connector
Figure 28: Removing the Fan
Probes
Equipment Required
Table 35: Equipment Required
TCP305 and TCP312
Figure 29: Removing the Strain Relief Boot
Figure 30: Removing the Top Half of the Probe
Figure 31: Removing the Probe Slide
Figure 32: Removing the Current Transformer
Figure 33: Removing the Circuit Board and Cable Assembly
TCP303 and TCP404XL
Figure 34: Removing the Handle
Figure 35: Removing the Current Transformer
Figure 36: Removing the Circuit Board and Cable
Isolating Hardware Faults
Table 36: Amplifier Hardware Faults
Table 37: Probe Hardware Faults
Determining the Amplifier Firmware Version Number
Figure 37: Displaying the Amplifier Firmware Version Number
Replaceable Parts
Parts Ordering Information
Using the Replaceable Parts List
Amplifier Replaceable Parts
Figure 38: TCPA300 and TCPA400 Replaceable Parts
Table 38: TCPA300 and TCPA400 Replaceable Parts List
Table 39: Power Cord Identification
Figure 39: TCPA300 and TCPA400 Standard Accessories
Figure 40: TCPA300 and TCPA400 Optional Accessories
Current Probes Replaceable Parts
Table 42: TCP305 and TCP312 Replaceable Parts List
Figure 42: TCP303 Replaceable Parts
Table 43: TCP303 Replaceable Parts List
Figure 43: TCP404XL Replaceable Parts
Table 44: TCP404XL Replaceable Parts List
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TCPA300/400 Amplifiers &
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Tcp305
Tcp303
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