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Tutorial

2–14

TDS 684A, TDS 744A, & TDS 784A User Manual

When you first connect a signal to a channel and display it, the signal displayed

may not be scaled and triggered correctly. Use the autoset function and you

should quickly get a meaningful display.

You should have a stable display of the probe compensation waveform from the

last step. Do the following steps to first create an unstable display and then to

autoset the display:

1. To create an unstable display, slowly turn the trigger MAIN LEVEL knob

(see Figure 2–7) first one direction, and then the other. Observe what

happens when you move the trigger level above the highest part of the

waveform. Leave the trigger level in that untriggered state.

MAIN LEVEL Knob

Figure 2–7: TRIGGER Controls

2. Press AUTOSET (see Figure 2–8) and observe the stable waveform display.

AUTOSET Button

Figure 2–8: AUTOSET Button Location

Autoset the Oscilloscope

Table of Contents10
Table 1-1: Key Features of the TDS Oscilloscopes23
Figure 1-1: Rear Panel Controls Used in Start up26
Figure 1-2: ON/STBY Button27
Table 1-2: Fuse and Fuse Cap Part Numbers27
Figure 2-1: Connecting a Probe for the Examples (P6245 Shown)38
Figure 2-2: SETUP Button Location39
Figure 2-3: the Setup Menu39
Figure 2-4: Trigger Controls40
Figure 2-5: the Display after Factory Initialization41
Figure 2-6: the VERTICAL and HORIZONTAL Controls42
Figure 2-7: TRIGGER Controls43
Figure 2-8: AUTOSET Button Location43
Figure 2-9: the Display after Pressing Autoset44
Figure 2-10: Display Signals Requiring Probe Compensation44
Figure 2-11: the Channel Buttons and Lights45
Figure 2-12: the Vertical Main Menu and Coupling Side Menu46
Figure 2-13: the Menus after Changing Channels47
Figure 2-14: Measure Main Menu and Select Measurement Side Menu49
Figure 2-15: Four Simultaneous Measurement Readouts50
Figure 2-16: General Purpose Knob Indicators51
Figure 2-17: Snapshot of Channel 152
Figure 2-18: Save/Recall Setup Menu54
Figure 3-1: How Probe Compensation Affects Signals60
Figure 3-2: P6139A Probe Adjustment60
Table 3-1: Autoset Defaults62
Figure 3-3: the Channel Readout64
Figure 3-4: Waveform Selection Priority65
Figure 3-5: Scaling and Positioning66
Figure 3-6: Vertical Readouts and Channel Menu67
Figure 3-7: Record View and Time Base Readouts69
Figure 3-8: Horizontal Controls70
Figure 3-9: Acquisition: Input Analog Signal, Sample, and Digitize73
Figure 3-10: Several Points May be Acquired for each Point Used73
Table 3-2: How Interleaving Affects Sample Rate75
Table 3-3: Additional Resolution Bits78
Table 3-4: TDS 744A Sampling Mode Selection80
Table 3-5: TDS 784A Sampling Mode Selection81
Table 3-6: XY Format Pairs88
Table 3-7: Pattern and State Logic118
Table 3-8: Pulse Trigger Definitions127
Table 3-9: Measurement Definitions144
Table 3-10: Probe Cal Status165
Table A-2: Standard Accessories230
Table A-1: Options231
Table A-3: Optional Accessories231
Table A-4: Accessory Software232
Table D-1: Factory Initialization Defaults250

Brand	Tektronix
Model	TDS 684A
Category	Test Equipment
Language	English

Tektronix TDS 684A User Manual

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