1730–Series Checks and Adjustments
5–12
5. Sweep Operation
REQUIREMENT – Check that the correct sweep rate can be selected. Check
that some part of the blanking interval is displayed when magnifying the
centered 2LINE and 2FLD sweeps.
a. Display INPUT A with nothing connected.
b. CHECK – that a sweep occurs at each SWEEP rate (2LINE, 2FLD, and
1LINE).
c. Select CH–B INPUT.
d. CHECK – that the 1LINE and 2LINE SWEEP modes display one line
and two lines of the color bar, respectively.
e. CHECK – for a 2FLD SWEEP display of the color bar signal.
f. Select and center the 2FLD SWEEP, then push the MAG button.
g. CHECK – that some portion of the vertical (field) blanking interval is
displayed.
h. Select and center the 2LINE SWEEP, then push the MAG button.
i. CHECK – that some portion of the horizontal (line) blanking interval is
displayed.
j. CHECK – that both lines of the 2LINE MAG SWEEP can be posi-
tioned onto the display with the HORIZONTAL Position control.
6. Check Sweep Calibration
REQUIREMENT – Timing accuracy: For 10 ms/div. (2 LINE), 5 ms/div. (1
LINE), and 1 ms/div. (2 LINE+MAG): ±2%. For 0.2 ms/div. (1 LINE+MAG):
±3%. Linearity: ±1%.
a. Hold the 1730–Series REF button in until the calibrator signal is
displayed.
b. Turn off the HORIZONTAL MAG and select 2 LINE.
c. Use the HORIZONTAL Position control to place the first falling
calibrator transition on the 10 ms graticule mark (the timing mark on the
left side of the graticule that goes completely through the blanking line).
See Fig. 5-3.
To Next Page
Loading...
Need help?
General
