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2 If the message "Delay cal factors failed checksum–defaults
loaded
," appears on screen, go to "To perform the self-calibration, "
on page 4–25, perform steps 6 through 9, then continue to steps
below.
This message means that the horizontal delay calibration factors which were
stored in NVRAM along with a checksum have been corrupted. This
information is written into NVRAM when the horizontal delay calibration is
run. During powerup, the checksum was recomputed and compared against
the one saved when the horizontal delay calibration factors were saved. If
the checksums do not match, the error message is displayed.
a Cycle the power of the oscilloscope.
b If default horizontal delay calibration factors are loaded and error
messages remain, contact your Agilent service center for diagnosis
and repair.
3
If one of the following messages appears on screen:
"Results from last vertical calibration: Failed" or
"Results from last vertical calibration: Defaulted" or
"Results form last vertical calibration: Aborted",
go to "To perform the self-calibration," page 4–25 steps 1 through 5,
then continue to steps below.
The first message means that the most recent calibration of the vertical
subsystem failed.
The second message means that the default vertical factors have been loaded.
The third message means that the default vertical factors have been aborted
a Cycle the power of the oscilloscope.
b If default vertical calibration factors are loaded and error messages
remain, contact your Agilent service center for diagnosis and repair.
Service
Troubleshooting the Oscilloscope
4–38
- Agilent 54615B, 54616B 1
- Oscilloscopes 1
- Accessories supplied 3
- Accessories available 3
- Options available 4
- Contents 7
- 4Service 8
- 5 Performance Characteristics 9
- Glossary 10
- The Oscilloscope at a Glance 11
- Figure 1–1 13
- Figure 1–2 13
- Figure 1–3 14
- Press Autoscale 17
- To set up the vertical window 18
- To expand the vertical signal 20
- To set up the time base 21
- ▼ happened before the 22
- To trigger the oscilloscope 23
- Mode 24
- Slope/Coupling 25
- To use roll mode 26
- Using Color (54616C only) 27
- To print in color 30
- Operating Your Oscilloscope 31
- To use delayed sweep 33
- Time reference set to left 34
- Delayed sweep 34
- Time reference set to center 35
- Press Autostore 36
- Erase 37
- Autostore 37
- To capture a single event 38
- Find the glitch 40
- Press Time 44
- Press the Freq softkey 44
- Press the Next Menu softkey 47
- Press the Rise Time softkey 48
- Press Voltage 50
- Press the Vrms softkey 51
- To make cursor measurements 53
- Figure 2-11 54
- Figure 2-12 54
- Figure 2-13 55
- Figure 2-14 55
- Figure 2-15 56
- Figure 2-16 56
- To save or recall traces 63
- Press Setup 64
- To reset the instrument setup 65
- To use the XY display mode 66
- Press Cursors 67
- Figure 2-26 69
- Figure 2-27 69
- To analyze video waveforms 70
- Using Option 005 Enhanced 73
- TV/Video Trigger 73
- To select TV display grid 76
- Cursors key 77
- Triggering on All Lines 79
- Triggering on Field 1 80
- Serration pulses 80
- Equalizing pulses 80
- Figure 3-7 85
- Figure 3-8 87
- Figure 3-9 87
- CALIBRATOR 98
- Set up the oscilloscope 100
- To verify bandwidth 102
- To verify trigger sensitivity 107
- 100 MHz, 75 mV p-p 109
- Adjusting the Oscilloscope 113
- To adjust the power supply 114
- (top side of oscilloscope) 116
- +5.1 V adjust 116
- –5.25 V adjust 116
- CALIBRATOR output 118
- ∆V(2) for ∆V(1) 120
- Model/Part 121
- 19, and 20 125
- Is the fan running? 128
- To clear error messages 129
- Perform the keyboard test 134
- Perform the ROM test 135
- Perform the RAM test 135
- To troubleshoot Option 005 136
- To replace an assembly 138
- To remove the fan 139
- To remove the front panel 139
- To remove the display 141
- To remove the system board 141
- To remove the attenuator 142
- To remove the power supply 146
- To remove the keyboard 147
- To remove the handle 148
- To order a replacement part 149
- Figure 4-12 151
- Figure 4–13 152
- Reference 153
- Designator 153
- Agilent Part 153
- Qty Description 153
- Figure 4-14 156
- Performance Characteristics 159
- Horizontal System 162
- Trigger System 163
- TV Functions 164
- XY Operation 164
- Display System 164
- Acquisition System 165
- Advanced Functions 166
- Power Requirements 166
- (54615B and 54616B only) 167
- General (54616C only) 169
- (54615B, 54616B, and 54616C) 170
- Option 005 Trigger System 172
- Oscilloscope Terms 173
- TV/Video Trigger Terms 177
- Glossary–8 180
- DECLARATION OF CONFORMITY 185
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