Performance Tests
1–40 TDS 500C, TDS 600B & TDS 700C Performance Verification and Specifications
b. The horizontal SCALE should already be set to 500 ps. On the
TDS 784C, and 600B, now set it to 200 ps. On the TDS 520C, 540C,
724C, and 754C, push the front-panel ZOOM button, press the
side-menu On button, set the horizontal SCALE to 250 ps, and be sure
the vertical scale factor is kept at 1.0X and the horizontal scale factor is
2.0X.
c. Save a CH 2 waveform: Press CH 2. Be sure the vertical scale factor is
kept at 1.0X. Then press save/recall WAVEFORM. Now, press the
main-menu button Save Wfm; then press the side-menu button
To Ref 2.
d. Save CH 3 (AX1 on some TDS models) waveform:
HMove the coupler from CH 2 to CH 3 (AX1 on some TDS models),
so that CH 1 and CH 3 are driven. Press WAVEFORM OFF. Press
CH 3. Be sure the vertical scale factor is kept at 1.0X. Then press
the side-menu button
To Ref 3.
e. Display all test signals:
HPress WAVEFORM OFF to remove CH 3 (AX1 on some TDS
models) from the display.
HDisplay the live waveform. Move the coupler from CH 3 to CH 4,
so that CH 1 and CH 4 are driven. (Use AX1 and AX2 instead of
CH3 and CH4 if your TDS model is so equipped). Press CH 4 to
display. Be sure the vertical scale factor is kept at 1.0X. See Figure
1–11 on page 1–41.
HDisplay the reference waveforms. To do this, press the front-panel
button MORE. Press the main-menu buttons Ref 2 and Ref 3. You
may notice their overlapping ground reference indicators. See
Figure 1–11 on page 1–41.
f. Measure the test signal:
HLocate the time reference points for these waveforms. Do this by
first identifying the point where the rising edge of the left-most
waveform crosses the center horizontal graticule line. Next, note the
corresponding time reference point for the right-most waveform. See
Figure 1–11 on page 1–41.
HPress CURSOR.
HPress the main-menu button Function; then press the side-menu
button V Bars.
HPress CLEAR MENU.