Tektronix 1740A/1750A - Manual (Page 48)

Operator’s Checkout Procedure
2-18
1740A/1750A Series Waveform/Vector Monitor User Manual
Select F+L+C ( FLAT plus LUM plus CHROM ). The display is
similar to the F+L display, with the chrominance-filtered
signal added on the right.
Select DIFF . Select the generator 5-step staircase signal. The
differentiated-step filtered display appears similar to
Figure 2-9.
Select R---Y . This provides a demodulated chrominance-ver-
sus-time display. Use the right bezel control to adjust vector
phase. See Figure 2-10.
Select SCH R---Y (1750A only). This provides a demodulated
SC/H sync-locked oscillator display, useful for viewing SC/H
variations versus time. A sample NTSC display is shown in
Figure 2-11. NTSC signals can be viewed in either line or
field sweeps. For PAL applications, view the signal in
two-field sweep (see Figure 2-12). Use the right bezel control
to adjust vector phase.
Exit the FILTER menu. Enter the menu again and note that the
filter selections are unchanged. Select FLAT . Exit the menu.
10 S/DIV
FLAT
LUM
CHROM
DIFF
R--Y
SCH R--Y
F+L
F+L+C
Figure 2-9. Two-Line DIFF filter display of 5-step staircase signal.