Tektronix 070-8462-03, Инструкция по эксплуатации

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Performance Verification
1735 HD High Definition Waveform Monitor
5–7
c. Select CH 1A INPUT and EXT REF. Sync amplitude should be 300mV
when loaded by 75
W
.
d. Check that a sweep occurs in all the unmagnified horizontal sweep
modes. TWO FIELD Sweep should be equal to the frame rate of the
applied video or external sync.
e. Remove the termination from the EXT REF connector.
f. Check that the waveform display stays locked.
g. Connect three 75
W
terminations to the EXT REF Input.
h. Check that the waveform display stays locked.
i. Remove two of the terminations from the EXT REF connector.
j. Remove the termination from the CH 1A INPUT. Loop-through connect
the input signal from CH 1A to CH 2A and CH 3A. Terminate CH 3A in
75
W
.
k. Check that the ONE LINE, TWO LINE, and THREE LINE Sweep
modes display one, two, and three lines of the Color Bar signal,
respectively.
l. Select TWO LINE Sweep and center the display. Push the MAG button.
m. Check that some portion of the sync pulse is displayed.
n. Check that both lines of the display can be positioned on screen with the
HORIZONTAL Position control.
o. Select TWO FIELD Sweep and turn On the MAG.
p. Check that both ends of the display can be positioned on screen.
q. Select THREE LINE Sweep.
r. Check that all three lines of the display can be positioned on screen.
s. Remove the loop-through cables and move the 75
W
termination to CH1
A INPUT.
5. Check Sweep Timing and Linearity
Requirement: 10
m
s/division (TWO LINE Sweep), timing accuracy to within
±
2%. 5
m
s/division (ONE LINE Sweep), timing accuracy to within
±
2%.
1
m
s/division (TWO LINE Sweep with MAG On), timing accuracy to within
±
2%, Integral Linearity to within
±
1%. 0.2
m
s/division (ONE LINE Sweep
with MAG On), timing accuracy to within 3%.
a. On the TSG 1001, select Zone Plates Signal Set, and press the Monitor
Setup button.