Agilent Technologies 54645D Especificações Página 181
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Triggering on Line 71
Note the TV Grid displayed (selected from the Display menu).
Table 6-1
Line Numbers per Field for Each TV Standard
TV Standard Field 1 Field 2 Alt Fld
NTSC 1 to 263 1 to 262 1 to 262
PAL 1 to 313 314 to 625 1 to 313
SECAM 1 to 313 314 to 625 1 to 313
GENERIC 1 to 1024 1 to 1024 1 to 1024 (Vertical)
Line Number Represents Count
In GENERIC mode, the line number represents the number of a count instead of
a real line number. This is reflected in the label above the softkey changing from
Line to Cnt. In the Trigger On selections, Field 1, Field 2 and Vertical are used to
indicate where the counting starts. For an interlaced TV system, the counting
starts from the rising edge of the first vertical serration pulse of Field 1 and/or
Field 2. For a non-interlaced TV system, the counting starts after the rising edge
of the vertical sync pulse.
Figure 6-1
Using Option 005 Enhanced TV/Video Trigger (HP 54645A)
To trigger on a specific line of video
6-6
- HP 54645A Oscilloscope and 2
- HP 54645D Mixed-Signal 2
- Oscilloscope 2
- The HP 54645A/D at a Glance 3
- Contents 6
- 8 Replacement Parts 10
- Replaceable Parts 8–11 11
- 9Performance Characteristics 11
- 10Messages 11
- Glossary 11
- Getting Started 12
- Figure 1-1 Figure 1-2 14
- Preparing the Oscilloscope 15
- Check package contents 16
- Figure 1-3 17
- Figure 1-4 18
- Table 1-1 19
- Power Cords 19
- Adjust the handle 20
- Connect the cables 20
- Power-on the oscilloscope 21
- Using the oscilloscope probes 24
- Adjust display brightness 24
- Front-Panel Overview 26
- HP 54645A/D Front Panels 31
- Figure 2-2 32
- Table 2-1 33
- HP 54645A Front-Panel Areas 33
- Table 2-2 34
- HP 54645D Front-Panel Areas 34
- Table 2-3 35
- Front-Panel Operation 41
- , then press 44
- , press 48
- D0-D15 51
- To make cursor measurements 55
- To modify the graticule 58
- To print the display 59
- Glitch Trigger 61
- Acquisition Memory 62
- Mode/Coupling 62
- To use holdoff 64
- To use external triggering 66
- To trigger on an edge 67
- To use glitch triggering 68
- To use line triggering 69
- To use TV triggering 69
- Trigger types 71
- To define an edge trigger 75
- To define a pattern trigger 76
- MegaZoom Concepts and 84
- Oscilloscope Operation 84
- Operation 85
- MegaZoom Concepts 86
- Deep Memory 87
- Oscilloscope Responsiveness 88
- Display Update Rate 89
- Display Modes 90
- Same Square Wave on HP 54645D 96
- HP 54645D Shows Glitches 97
- Pan and Zoom 101
- Run/Stop 104
- Main/Delayed 105
- Acquiring Data 113
- Memory Depth/Record Length 114
- To take a single trace 116
- To capture a single event 117
- Single 118
- To use Autostore 119
- Autostore 120
- To erase the waveform display 121
- Table 4-1 132
- Table 4-2 133
- Label/Threshold 134
- Labels On 136
- Labels Off 136
- To define a new label 139
- Press the 140
- To initialize the label list 141
- Making Measurements with 142
- HP 54645A/D Oscilloscopes 142
- Oscilloscopes 143
- Capturing Data 144
- To use delayed sweep 145
- Asynchronous Noise in Pulse 147
- Display 151
- To use channel math 153
- To use the Roll display mode 154
- To use the XY display mode 155
- Cursors 156
- Figure 5-12 158
- Figure 5-13 158
- To analyze video waveforms 159
- Measuring Waveform Data 163
- Cursors Track Delayed Sweep 165
- Moving Cursors Together 166
- softkey 175
- Using Option 005 Enhanced 176
- TV/Video Trigger (HP 54645A) 176
- TV/Video Trigger 177
- Slope/Glitch 179
- TRIGGER 180
- Triggering on All Lines 182
- Triggering on Field 1 183
- Triggering on All Fields 184
- Second VITS Displayed 188
- Testing, Adjusting, and 190
- Troubleshooting 190
- •Solving Problems 191
- •Getting Service 191
- •Adjusting the Oscilloscope 191
- If there is no trace display 193
- If you can’t see a channel 194
- Getting Service 196
- To test the digital channels 200
- Testing Threshold Accuracy 201
- Threshold Test Setup 202
- To verify threshold accuracy 203
- 1 mV/Div* 207
- To verify bandwidth 208
- To verify trigger sensitivity 213
- 25 MHz, 50 mV 215
- Adjusting the Oscilloscope 218
- To adjust the power supply 219
- (top side of oscilloscope) 221
- Autoscale 226
- To adjust the display 227
- (HP 54645A) 229
- Low Voltage Power Supply 231
- 19, and 20 231
- Is the fan running? 234
- To clear error messages 235
- Perform the display test 239
- Perform the keyboard test 239
- Perform the 240
- To troubleshoot Option 005 241
- Replacement Parts 242
- To remove the fan 245
- To remove the cabinet 245
- To remove the front panel 246
- To remove the display 247
- To remove the system board 247
- Remove the system board 248
- To remove the power supply 249
- To remove the keyboard 250
- To remove the handle 250
- Replaceable Parts 252
- To order a replacement part 253
- Figure 8-3 254
- Figure 8-4 257
- Performance Characteristics 260
- HP 54645D Digital Channels 263
- HP 54645A/D Time Base 265
- HP 54645A/D Setup Functions 268
- Option 005 Trigger System 270
- Messages 272
- DECLARATION OF CONFORMITY 298
- Product Regulations 299
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