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38
Testing Performance
The procedures in this section test measurement performance using performance
specifications.
Testing Interval
The performance test procedures may be performed for incoming inspection of the
oscilloscope and should be performed periodically thereafter to ensure and maintain
peak performance. The recommended test interval is yearly or every 2,000 hours of
operation.
See Also See Chapter 4, “Calibrating and Adjusting,” for information about the calibration cycle.
Equipment Required
Equipment required for each test is listed in the test. Any equipment satisfying the
critical specifications listed may be substituted for the recommended model. The
procedures are based on the model or part number recommended.
Self-Test Verification
To verify system operation with high confidence, without the test equipment and time
required for performance tests, perform the self-tests. These internal tests verify many
functions of the oscilloscope.
To run the self-tests, enable the graphical interface, then select Self Test from the
Utilities menu. The Self Test drop down list box allows you to select oscilloscope Self
Tests, Key and Knob Test, or LED Test. A message is displayed with the instruction to
remove all inputs to the oscilloscope. During execution of the self-tests, the oscilloscope
displays diagnostic messages indicating the status of each test.
If one of the self-tests fails,
FAILED is displayed rather than PASSED, and a 16-bit
diagnostic code is displayed. This code is used by factory service personnel when
troubleshooting the main assembly. Failure of a self-test indicates an assembly failure.
The assembly must be replaced before you attempt performance verification. For more
troubleshooting information, refer to see “Troubleshooting” on page 71.
Test Record
You can record the results of the performance tests in the Performance Test Record
provided at the end of this chapter. The Performance Test Record lists the performance
tests and provides an area to mark test results. You can use the results recorded at
incoming inspection for later comparisons during periodic maintenance,
troubleshooting, and after repairs or adjustments.
Operating Hints
Some knowledge of operating the oscilloscope is helpful; however, these procedures are
written so that little experience is necessary. The following two hints will speed progress
Test Interval Dependencies
The test interval depends on frequency and severity of use and the environmental conditions under which
the oscilloscope is used. In recording test results, you may find that the test interval could be shortened
or lengthened; however, such a decision should be based on substantial quantitative data.
- Service Guide 1
- In This Book 5
- Contents 7
- 6 Replacing Assemblies 8
- 7 Replaceable Parts 8
- 8 Theory of Operation 8
- General Information 10
- Accessories supplied 13
- Accessories available 14
- Options available 15
- ± 5°C from the temperature 16
- Environmental Conditions 17
- Measurement Category 17
- Oscilloscope Dimensions 18
- Preparing for Use 19
- Setting Up the Oscilloscope 20
- To inspect package contents 21
- Figure 2-1 21
- To connect power 22
- Attaching the Probe Connector 25
- Probing the Circuit 26
- To connect the digital probe 28
- Digital probe lead set 29
- 40-pin Connector Pinout 30
- Figure 2-14 31
- To turn on the oscilloscope 32
- To turn off the oscilloscope 32
- Probe Compensation 33
- To clean the oscilloscope 35
- Testing Performance 37
- Clear Display 39
- Averaging 39
- Specifications 39
- Performance Test Procedures 39
- Fluke MET/CAL Procedures 39
- To test the DC calibrator 40
- To test input resistance 42
- Connect the equipment 43
- Select Close 45
- (Supply) Minimum Maximum 45
- Set the scale from the 46
- Set the offset from the 46
- To test bandwidth 47
- To verify threshold accuracy 49
- Connections 50
- High-to-Low Transitions 55
- Threshold Voltage Setting V2 56
- Low-to-High Transitions 57
- To test time scale accuracy 59
- Oscilloscope 60
- Sine Wave Source 60
- Frequency Reference 60
- Agilent Technologies 64
- Range Supply Limits 65
- Performance Test Record 66
- Calibrating and Adjusting 67
- To run the self calibration 69
- Troubleshooting 71
- Default Setup 73
- 54830F01a 75
- Primary Trouble Isolation 76
- Run oscilloscope self-tests 77
- Self Calibration 78
- Performance” on page 37 78
- No Display Trouble Isolation 79
- Input Pin # 7 65432 1 81
- Replace any shorted assembly 84
- Replace the power supply 84
- To check probe power outputs 85
- To Check the keyboard 86
- To check the LEDs 87
- Intel D915GUX Motherboard 88
- To Reset 89
- 5 and 7 89
- To setup the BIOS 91
- Figure 5-12 93
- Software Revisions 94
- Replacing Assemblies 95
- Bottom sleeve fasteners 99
- Removing bottom sleeve 100
- Connecting Mylar flex sables 101
- Disconnecting W8 104
- Access Hole 105
- Removing the BNC nuts 108
- Figure 6-17 112
- Opening in side of 131
- Fan control board cables 131
- Acquisition board cables 131
- Figure 6-32 132
- Lift board out of chassis 134
- To remove and replace a fan 135
- Mylar flex cables 136
- T10 Torx Screws 136
- Replaceable Parts 137
- Power Cords 139
- Exploded Views 140
- Replaceable Parts List 145
- Theory of Operation 149
- Figure 8-1 150
- Logic Trigger 154
- Attenuator Theory 155
- Acquisition Theory 155
- • Trigger levels 156
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