Tektronix 070-8462-03, Инструкция по эксплуатации

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Performance Verification
5–6
1735 HD High Definition Waveform Monitor
Table 5–2: 1735 HD initial control settings (Cont.)
Control Setting
SCALE as desired
INTENS as desired
2. Check Power Supply Operation
Requirement: Operation over any mains voltage of 90 – 250 V.
a. Turn ON the 1735 HD and adjust the controls for a usable display.
b. Turn READOUT On and verify that the 1735 HD is set for the desired
line rate. If the line rate must be changed, enter the MENU, select
LINES/FRAME, then select the desired line rate, then exit the MENU.
Turn Off the READOUT.
c. Vary the autotransformer from low-line to high-line voltage (90–132 V
for 110 V operation, or 180–250 V for 220 V operation).
d. Check for stable operation over the prescribed voltage range.
3. Check Trace Rotation Range
Requirement: Adjustment range should be more than
±
1
_
from horizontal.
a. Check that the trace rotates more than
±
1
_
from the base line as the
front-panel TRACE ROTATION control is turned throughout its range.
b. Set the TRACE ROTATION control so the trace is aligned parallel to the
graticule base line.
4. Check Sweep Operation
Requirement: Sweep occurs in all horizontal sweep modes with or without
synchronization. TWO FIELD sweep repetition rate is equal to frame rate of
applied video or external sync. Synchronization: Internally, sweep will
synchronize to a sync amplitude of 300 mV peak-to-peak
±
6 dB or tri-level
sync of
±
300 mV
±
6 dB; externally 143 mV to 4 V.
a. Check that a sweep occurs in all the horizontal sweep modes when no
signals or external reference are applied to the instrument.
b. Connect a 75
W
cable from the TSG 1001 G/Y output to the 1735 HD
CH 1A INPUT. Terminate the remaining side of the loop-through input
in 75
W
. Connect the TSG 1001 SYNC OUT signal to the 1735 HD EXT
Input and terminate the remaining side of the loop-through input in
75
W
.