Tektronix 1760 User Manual
Basic Measurements
1760 Series Component Waveform/Vector Monitor User Manual
4-16
Lightning Measurements
The Lightning display gives indication of absolute and rela-
tive amplitudes and relative timing of the three components.
For a Lightning display, apply color-difference signals (Y, P
tive amplitudes and relative timing of the three components.
For a Lightning display, apply color-difference signals (Y, P
B
and P
R
) to the rear panel CH-A1, A2, and A3 (or CH-B1, B2,
and B3) connectors. Push the front-panel
LIGHTNING
button.
The instrument is forced to A123 input display (it can be
changed to B123).
changed to B123).
Use the
CONFIG—FORMAT
menu (page 3-21) to set
DISPLAY
to
LIGHTNING
, and select the appropriate format for your
system. Lightning is most useful in the color difference for-
mats:
mats:
SMPTE, EBU, BETA, and MII
. (Selecting
GBR
will pro-
vide a square display.) Use the
CONFIG—VECTOR
menu to
select 75% or 100% bars. This will change the size of the
electronic graticule to accommodate the input signal. Push
electronic graticule to accommodate the input signal. Push
CLEAR MENU
to clear the menu readout.
Channel 2 is compared to Channel 1 in the top half of the
display; Channel 3 is compared to Channel 1 in the lower
half. (See Figure 4-14.)
display; Channel 3 is compared to Channel 1 in the lower
half. (See Figure 4-14.)
525/60
C
M
B
R
M
C
G
B
R
G
YL
YL
White
Black
Setup
White
Figure 4-14. Lightning display showing correct timing.