Agilent Technologies 54657A Dokumentacja Strona 177
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TV/Video Trigger Terms
Blanking Level The level of the
composite picture signal that
separates the range containing
picture information from the range
containing synchronizing
information. (IEEE Definition)
Chrominance That property of
light which produces a sensation of
color in the human eye apart from
any variation in luminance that may
be present.
Chrominance Signal That por-
tion of the color television signal
which contains the color informa-
tion. (STOC Definition)
Color Burst In color systems, this
normally refers to a burst of subcar-
rier frequency (8 to 10 cycles of
3.579545 MHz in NTSC systems) on
the back porch of the composite
video signal used to establish a fre-
quency and phase reference for the
chrominance signal.
Composite Sync The line and
field rate synchronizing pulses
(including the field equalizing
pulses), when combined together,
form the composite sync signal.
Composite Video For color, this
consists of blanking, field, and line
synchronizing signals, color synchro-
nizing signals, plus chrominance and
luminance picture information.
These are all combined to form the
complete color video signal.
Equalizing Pulses Pulses of one
half the width of the horizontal sync
pulses which are transmitted at
twice the rate of the horizontal sync
pulses during the portions of the
vertical blanking interval immedi-
ately preceding and following the
vertical sync pulse. These pulses
cause the vertical deflection to start
at the same time in each interval.
They also keep the horizontal sweep
circuits in step during the portions of
the vertical blanking interval
immediately preceding and following
the vertical sync pulse.
Field One of the two (or more)
equal parts of information into which
a frame is divided in
interlace scanning; alternately, one
half of a complete picture (or frame)
interval, containing all of the odd, or
all of the even, lines of the picture.
Field 1 Triggers on the field 1 por-
tion of the video signal.
Glossary
Glossary–5
- 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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