Tektronix 1740A/1750A - Manual (Page 36)

At A Glance
1740A/1750A Series Waveform/Vector Monitor User Manual
2-6
REF
H
EXT toggles between external reference ( EXT LED
on) and internal reference. Internal reference can be
configured for component operation, and two
external reference inputs can be designated for
dual-standard instruments. See the
CONFIGURE men
on page 3-18.
INPUT
H Selecting a front-panel input causes the signal that is
input to the corresponding rear-panel connector to
be displayed on screen.
H Without PARADE or OVERLAY selected, only one
input selection can be made at a time. Each input
channel button (including
A123 / B123 ) toggles
between A and B , and is cancelled when another
input button is pressed.
H With PARADE or OVERLAY selected, multiple input
selections can be made; input buttons select A, B ,
both, or off, and do not cancel each other.
A123
A123 provides a side-by-side display of the CH-A1 ,
CH-A2 , and CH-A3 inputs ( B123 displays the CH-B1 ,
CH-B2 , and CH-B3 inputs). Selecting A123 or B123
turns off all other input channels. When PARADE or
OVERLAY is selected, A123 and B123 can be displayed
together and in combination with other inputs.
PARADE
PARADE displays up to four input channels side-by-
side, with any additional inputs overlaid. Selecting
PARADE displays the input channel(s) last selected
for PARADE, allowing a custom configuration of
inputs. In PARADE mode, the LINE/FIELD button
offers only two choices: one line and one field.