Performance Tests
TDS 500D, TDS 600C, TDS 700D & TDS 714L Performance Verification and Specifications
1–67
H Leave the Main trigger system triggered on the positive slope of the
waveform before proceeding to the next check.
H 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 (full bandwidth):
a. Hook up the test-signal source: Disconnect the hookup installed in
step 1. Connect the signal output of a high-frequency sine wave
generator to CH 1. Some TDS models need a high frequency
(>500 MHz) generator; see footnotes 1 and 5 in Table 1–1 on page 1–18.
b. Set the Main and Delayed Horizontal Scales:
H Set the horizontal SCALE to 500 ps for the M (Main) time base.
H Press HORIZONTAL MENU. Now press the main-menu button
Time base; then press the side-menu button Delayed Triggerable.
H Press the side-menu button Delayed Only.
H 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:
H Set the generator frequency to full bandwidth as follows:
TDS694C: 3 GHz
TDS794D: 2 GHz
TDS580D, TDS680C, TDS684C, & TDS784D: 1 GHz
TDS520D, TDS540D, TDS654C, TDS714L,
TDS724D, & TDS754D: 500 MHz
H Set the test signal amplitude for about five divisions on screen. Now
fine adjust the generator output until the CH 1 Amplitude readout
indicates the amplitude is 500 mV. (Readout may fluctuate around
500 mV). TDS694C only: Press the set level to 50% and check that
a stable trigger is obtained.
H Disconnect the leveling head at CH 1 and reconnect it to CH 1
through a 5X attenuator. Check that a stable trigger is obtained.
d. Repeat step 2, substeps b and c only, for the full bandwidth selected.
TDS694C or TDS794D exception: Perform step 2, substep c (Delayed
trigger) with the generator frequency set to 1.5 GHz.
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