Tektronix WFM 601i, User Manual

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Functional Overview
2–8
WFM 601i Serial Component Monitor
CONFIGure WFM/VEC menu and select either Lightning or Diamond. Push the
CLEAR MENU button to clear the menu readout.
The Lightning display is useful for viewing the amplitude and timing
relationship between the Y, P
B
, and P
R
signals.
The Diamond display evaluates the RGB signal for gamut limit violations.
Signals which are inside the electronic diamond graticule are within gamut limit.
For signals outside the diamond, the graticule is labeled with G, B, and R to
determine the color problem area.
Bowtie
Bowtie mode is used in conjunction with the Bowtie test signal. It is useful for
determining the timing between Y and P
B
(Ch. 1 and 2), and Y and P
R
(Ch. 1
and 3).
In Bowtie mode, the left half of the display shows Channel-1 minus Channel-2
and the right half shows Channel-1 minus Channel-3. If the timing between
channels is matched, the centers of the bowties will be centered and not skewed.
If Channel-2 is delayed with respect to Channel-1, the skew moves to the right.
If Channel-2 is advanced with respect to Channel-1, the skew moves to the left.
Picture
The Picture mode allows the operator to verify the signal source. In Picture mode
with Line Select on, a bright-up marker identifies the selected line in the picture.
Multiple
When Multiple display is selected, Waveform or Parade can be displayed at the
same time as Vector or Lightning (or Diamond).
When exiting Multiple display, the instrument will return to the previous display
settings. When multiple is re-selected, the previous Multiple
display settings will
be restored.