Tektronix 070-8462-03, Инструкция по эксплуатации

Страница: 23 / 271

Getting Started
1–2
1735 HD High Definition Waveform Monitor
The vertical signal processing provides a choice of clamped or unclamped
display, with clamp speed selected through the menu. The input signal can be flat
(unfiltered) or filtered. The filter is turned on or off through the front-panel
FILTER switch. When the switch is held, and either the two line or two field
sweep rate is employed, the display consists of one line or field filtered and the
second unfiltered. The filter type (noise or diff step) is selected through the
on-screen menu.
Vertical amplitudes can be displayed in a calibrated X1 or X5 gain mode, or can
be set to a specific amplitude using the variable gain control. Pushing and
holding the switch accesses X5 magnification and the variable at the same time.
Sweep Rates
The 1735 HD offers the following sweep rates: one–line, two–line, three–line,
one–field, two–field, and three–field. Both one line and one field operation allow
overlay of any combination of the six inputs.
The six loop-through input
connectors can be used as two, three-wire component inputs (A and B) or six
composite inputs (A1, A2, A3, B1, B2, and B3).
Two line and two field operation provide a two-line and two-field display,
respectively, and allow channels A and B on together, with channel 1, 2, or 3
selected.
Three-line and three-field operation provide a side-by-side display of channels 1,
2, and 3, with the overlay of two parades when channels A and B are both
selected. The channel 2-3 offset (when enabled through the menu) allows the
operator to position the second and third signals with respect to the first signal,
or to position channel B with respect to channel A.
Typical Configurations
The 1735 HD is suitable for component or composite format HDTV, medical,
computer graphics, or machine video applications with analog bandwidths of up
to 30 MHz.
For high-definition television applications, the 1735 HD replaces the 1730 HD,
with improved video bandwidth, frequency response flatness, and off-screen
recovery at high vertical magnification. DC channel balance and stability has
also been improved. The 1735 HD is well suited for use in a VCR bridge. With
the factory preset measurement routines, accessed through the rear-panel
REMOTE connector, it is possible to have one-button measurements of key
parameters, including various vectorscope measurements.
The 1735 HD is also useful for monitoring multiple component or composite
video signals, whether in HDTV, NTSC, or PAL standards. Input signals can be