Tektronix 070-8462-03, Инструкция по эксплуатации

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Operating Basics
1735 HD High Definition Waveform Monitor
2–3
4. Vertical Gain CALIBRATION
Access the internal calibrator signal through the menu. The display should be
two horizontal traces, about 700 mV apart. Use this front-panel screwdriver
adjustment to set the vertical signal amplitude for exactly 700 mV. Exit the
calibrator mode by using any other front-panel control.
5. FILTER
The filter switch toggles between FLAT and FILTER. The filter type (DIFF
STEP or NOISE) is selected through the menu.
In TWO LINE or TWO FIELD sweep mode, a combination filtering routine,
consisting of filtered and flat for alternate lines or fields, can be accessed by
pushing and holding the FILTER push button. In this dual filter mode, both
front-panel LEDs will light. The filtered line or field will always be on the
right side of the CRT. To exit the dual filter mode, select either FLAT or
FILTER with a momentary push of the button.
The dual filter cannot be accessed when the 1735 HD is in THREE LINE or
THREE FIELD sweep mode, LINE SELECT mode, or when more than one
input is selected. To determine whether the instrument is in LINE SELECT
mode, it is necessary to enable the readout (push and hold the MAG /
READOUT switch). Filtering always returns to FLAT when coming out of
the combination filtering routine.
6. DC CPLG
When DC coupling is selected (the corresponding LED lights), the input
channels are DC coupled; when it is not selected, the inputs are AC coupled.
When DC coupling is selected and GND is also selected, the inputs are
grounded.
7. VERTICAL POSITION
This variable control positions the waveform display vertically.
8. VARIABLE (Control)
The VAR adjusts amplifier input gain from +0 dB to –14 dB. The control has
no detent; its action is continuous.
9. GAIN (Switch)
A momentary touch of this switch toggles X5 Gain between On and Off
(X1). Pressing and holding the switch toggles the VAR Gain between On and
Off. Both X5 and VAR can be on at the same time, and can be turned off
independently.
Vertical