Tektronix 1780-R - page 43

Connectors, Controls, Indicators
1780R-Series Operator’s Manual 2–11
NOTE. The following switch groups are companion switches:
VECT / SCH & XY / PIX, PARADE / OVERLAY & WAVEFORM/
WFM + CAL.
Refer to the preceding instructions entitled Companion Switch
Example. Locations of the switches are shown in Figure 2–2.
22. VECT / SCH. Push and release this switch to toggle between
Vector and SCH phase display for the vectorscope CRT . Push and
hold to access SCH phase and Vector together.
23. XY / PIX. Push and release this switch to toggle between XY and
Picture Monitor display for the vectorscope CRT. Push and hold
to add XY to the current VECT / SCH selection. Push and release
to exit held mode.
24. PARADE / OVERLAY. Push and release this switch to toggle
between Parade and Overlay modes. Possible configurations are
shown in Table 2–1.
Table 2–1: Possible Parade and Overlay Configurations
Display Possible Inputs * Automatic Selections
Parade
N
o acc
ess
bee
p
s
oun
ds
.
If
ON
E L
IN
E i
s
se
l
e
ct
ed
in
O
v
er
lay o
r
W ef rmm de sr me reer s
ONE LINE
W
av
ef
o
rm
m
o
de
, in
s
t
r
u
me
nt
re
v
er
t
s
to
TWO LINE or THREE LINE when
Parade is selected.
TWO LINE CH A and Probe, or
CH B1 and Probe, or
CH A and CH B1, or
CH B1 – CH B2 and
CH B1 – CH B3 (Bow-
tie)
If CH B1, CH B2, and CH B3 are
selected, the instrument will revert to
THREE LINE mode.
THREE LINE CH B1 and CH B2 and
CH B3 If any combination of two input channels is selected, the instrument
will revert to TWO LINE mode.
Connectors, Controls, Indicators
1780R-Series Operator’s Manual 2–11
NOTE. The following switch groups are companion switches:
VECT / SCH & XY / PIX, PARADE / OVERLAY & WAVEFORM/
WFM + CAL.
Refer to the preceding instructions entitled Companion Switch
Example. Locations of the switches are shown in Figure 2–2.
22. VECT / SCH. Push and release this switch to toggle between
Vector and SCH phase display for the vectorscope CRT . Push and
hold to access SCH phase and Vector together.
23. XY / PIX. Push and release this switch to toggle between XY and
Picture Monitor display for the vectorscope CRT. Push and hold
to add XY to the current VECT / SCH selection. Push and release
to exit held mode.
24. PARADE / OVERLAY. Push and release this switch to toggle
between Parade and Overlay modes. Possible configurations are
shown in Table 2–1.
Table 2–1: Possible Parade and Overlay Configurations
Display Possible Inputs * Automatic Selections
Parade
N
o acc
ess
bee
p
s
oun
ds
.
If
ON
E L
IN
E i
s
se
l
e
ct
ed
in
O
v
er
lay o
r
W ef rmm de sr me reer s
ONE LINE
W
av
ef
o
rm
m
o
de
, in
s
t
r
u
me
nt
re
v
er
t
s
to
TWO LINE or THREE LINE when
Parade is selected.
TWO LINE CH A and Probe, or
CH B1 and Probe, or
CH A and CH B1, or
CH B1 – CH B2 and
CH B1 – CH B3 (Bow-
tie)
If CH B1, CH B2, and CH B3 are
selected, the instrument will revert to
THREE LINE mode.
THREE LINE CH B1 and CH B2 and
CH B3 If any combination of two input channels is selected, the instrument
will revert to TWO LINE mode.