Tektronix TDS544A Manuel d'utilisateur télécharger pdf (Page 87)

Performance Tests

TDS 520A, 524A, 540A, & 544A Performance Verification

Figure 1-41: Sync Duty Cycle Test: Critically Adjusted Pulse

Press TRIGGER MENU.

Press the main-menu Type pop-up until you select Video.

If the TRIG’D LED is not on, check that the CH1 – Width and

CH1 Period measurements are adjusted correctly (see note

above). CONFIRM that the setup is correct and the oscilloscope

will trigger.

CONFIRM that the TRIG’D LED is on and the waveform is

stable.

Disconnect the signal source from CH1, wait a few seconds, then

reconnect the signal.

CONFIRM that the TRIG’D LED is on and the waveform is

stable.

Press Sync Polarity.

Press Pos Sync.

Push the pulse generator COMPLEMENT button out.

CONFIRM that the TRIG’D LED is on and the waveform is

stable.

Disconnect the signal source from CH1, wait a few seconds, then

reconnect the signal.

CONFIRM that the TRIG’D LED is on and the waveform is

stable.

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Tektronix TDS544A Manuel d'utilisateur Page 87