Sony Tektronix WFM 1125, Руководство пользователя

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Reference
3-8
WFM 1125 Option 0A/0B/0C/0D User Manual
Diamond Display
The Diamond display is very effective at showing the relationship between the R,
G, and B video signals. The waveform monitor converts the Y, P
b,
and P
r
components recovered from the serial signal to R, G, and B to form the Diamond
display. Figure 3–5 shows how the Diamond plot is developed.
Press the BOWTIE/VECTOR button to select VECTOR. Press the DIAMOND
bezel button to select Diamond display.
Red
Blue 0 V +700 mV
+700 mV
+700 mV 0 V
+700 mV
B
R G
G
X-Y plot Diamond plot
Green
Legal G and R space
Green
Legal G and B space
Figure 3-5: Construction of the Diamond display
Ultimately all color video signals are coded as RGB for display on a picture
monitor. For a color monitor to predictably display all three components, the
components must lie between peak white, 700 mV, and black, 0 V. Picture
monitors handle excursions outside the standard range (gamut) in different and
unpredictable ways.