Performance Tests
4-72
TDS7104 & TDS7054 Service Manual
stabilize the Delayed trigger. Touch one of the Slope buttons to
switch between trigger slopes. See Figure 4--32 on page 4--71.
H Enter pass/fail result for delayed trigger on the test record.
H Leave the Delayed trigger system triggered on the positive slope of
the waveform before continuing to the next step. Also, return to the
main trigger: select the A-->B Seq tab and touch the A-->B Sequence
AOnlybutton. Then select the A Event tab.
H Press Close.
3. Confirm the AUX Trigger input:
a. Display the test signal:
H Remove the 10X attenuator and reconnect the cable to CH 1.
H Press the Trigger SOURCE button to toggle it to CH 1.
H Set the test signal amplitude for about 4 divisions on screen.
H Set the signal amplitude as follows:
TDS7104 2.5 divisions
TDS7054 4 divisions
H Now fine adjust the generator output until the CH 1 Amplitude
readout indicates the amplitude is as follows (Readout may
fluctuate):
TDS7104 250 mV
TDS7054 400 mV
b. Check the AUX trigger source for stable triggering at limits: Do the
following in the order listed.
H Use the definition for stable trigger from step 2b.
H Press the Trigger SOURCE button to toggle it to EXT.
H Press PUSH TO SET 50%.
H CHECK that a stable trigger is obtained for the test waveform on
both the positive and negative slopes. Press the Trigger SLOPE
button to switch between trigger slopes. Use the Trigger LEVEL
knob to stabilize the trigger if required.
H Enter the pass/fail result on the test record.
H Leave the trigger system triggered on the positive slope of the
waveform before proceeding to the next check.
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