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Performance Tests
Performance Verification Procedures
3.
Confirm the AUX Trigger input:
a.
Display the test signal:
Remove the 10X attenuator and reconnect the cable to CH 1.
Set the test signal amplitude for about 2.5 divisions on screen.
Now fine adjust the generator output until the CH 1 Amplitude
readout indicates the amplitude is 250 mV. (Readout may fluctu-
ate around 250 mV.)
b.
Check the AUX trigger source for stable triggering at limits:
Do the
following in the order listed.
Use the definition for stable trigger from step 2.
Press TRIGGER MENU; then press the main-menu button
Source.
Press the side-menu button –more– until the side-menu label
Auxiliary appears; then press Auxiliary.
Press SET LEVEL TO 50%. CHECK that a stable trigger is
obtained for the test waveform on both the positive and negative
slopes. Press the main-menu button Slope; then use the side
menu to switch between trigger slopes. Use the TRIGGER LEV-
EL knob to stabilize the trigger if required.
Leave the Main trigger system triggered on the positive slope of
the waveform before proceeding to the next check.
Press the main-menu button Source; then press the side-menu
button –more– until CH 1 appears. Press CH 1.
4.
Confirm that the Main and Delayed trigger systems are within sensitivity
limits (500 MHz):
a.
Hook up the test-signal source:
Disconnect the hookup installed in
step 1. Connect, through its leveling head, the signal output of a
high-frequency leveled sine-wave generator to CH 1.
b.
Set the Main and Delayed Horizontal Scales:
Set the horizontal SCALE to 500 ps for the M (Main) time base.
Press HORIZONTAL MENU. Now press the main-menu button
Time base; then press the side-menu button Delayed Trigger-
able.
Press the side-menu button Delayed Only.
Set the horizontal SCALE to 500 ps for the D (Delayed) time
base. Press the side-menu button Main Only.
c.
Display the test signal:
Set the generator frequency to 500 MHz.