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Performance Tests

2-52

TDS5000B Series Specifications and Performance Verification

stabilize the Delayed trigger. Click one of the Slope buttons to

switch between trigger slopes. See Figure 2--21 on page 2--51.

H Enter the pass/fail result for delayed trigger in the test record.

H Leave the Delayed trigger system triggered on the positive s lope of

the waveform before continuing to the next step. Also, return to the

main trigger: select the A-- >B Seq tab and click the A-->B S equence

AOnlybutton.

H Select the AEventtab; then press Close.

3. Confirm the AUX Trigger input:

a. Display the test signal:

H Remove the 10X attenuator; then reconnect the 50 Ω termination

and precision 50 Ω cable to CH 1.

H Press the Trigger SOURCE button to select CH 1.

H Set the test signal amplitude for approximately 4 divisions on the

screen.

H Fine-adjust the generator output until the CH 1 Amplitude readout

indicates that the amplitude is 400 mV.

b. Check the AUX trigger source for stable triggering at 50 MHz: Do the

following in the order listed.

H Move the 50 Ω termination and precision 50 Ω cable from CH 1 to

AUX IN.

H Press the Trigger SOURCE button to set the source to EXT.

H Adjust the Trigger LEVEL knob in the positive direction.

H CHECK for a stable trigger. When a stable trigger is obtained, the

TRIG’D indicator is lighted.

NOTE. You will not see the signal on the display.

H Press the Trigger SLOPE button to toggle it to NEG.

H Adjust the Trigger LEVEL knob in the negative direction.

H CHECK for a stable trigger. When a stable trigger is obtained, the

TRIG’D indicator is lighted.

H Enter the pass/fail results in the test record.

Tektronix TDS5000B Series Specification And Performance Verification Technical Reference

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