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Chapter 3: Testing Performance
39
of the testing.
Clear Display
When using many averages, it often takes awhile for a waveform display to stabilize after
a change. When a control on the oscilloscope is changed, averaging automatically
restarts. When just the input signal is changed, the oscilloscope must average new data
with the old so it takes longer for the waveform to stabilize.
Press the Clear Display key while changing input signals. The oscilloscope will restart
averaging and give a quick indication of the result of the signal change.
Averaging
Averaging is used to assure a stable signal for measurements. It is not necessary to wait
for complete stability of the signal (averaging complete), as long as the measurement is
well within the limits of the test.
Specifications
The specifications that apply to a particular test are given with the test procedure. For
complete specifications and characteristics see the oscilloscope’s datasheet. The
datasheet can be viewed by directing your web browser to www.agilent.com and
performing a search for the oscilloscope’s model number. The datasheet will be in the
“Library.”
Performance Test Procedures
Performance test procedures start with the next paragraph. Procedures may be done
individually and in any order.
Fluke MET/CAL Procedures
Fluke MET/CAL procedures are available for the 8000 Series oscilloscopes.
The MET/CAL badge with "PROCEDURES AVAILABLE" signifies that Fluke has created
Warranted MET/CAL procedures to verify the performance of this instrument using
MET/CAL metrology software. These procedures can be obtained from Fluke. Please
see http://www.fluke.com and search for MET/CAL for more information.
Let the oscilloscope Warm Up Before Testing
Allow the oscilloscope to warm up for at least 30 minutes prior to beginning performance tests. Failure to
allow warm-up may cause the oscilloscope to fail tests.
- 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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