PATTERN TABLE
8
No.
Name
Description
Application
P01
White
Purity Pattern
White (100% Y)
3 primary colors:
Red, Green, Blue
4 Additional colors:
Magenta, Yellow,
Cyan and Black
- Brightness control
- Purity checks and adjustment
- Interference between sound
and chroma carrier
- Color A.G.C.
- Chroma writing current of
video recorders
- White setting
- Synchronization
- FM demodulator (white level)
- Beam current of picture tube
- Luminance writing current
P02
Blue
P03
Red
P04
Magenta
P05
Green
P06
Cyan
P07
Yellow
P08
Black
P09
Grad-Red
Gradual Pattern
Gradual transition of
colors
- Brightness control
- Luminance writing current
- Linearity of video amplifier
- Overall color performance
- Amplitude response resolution
- Linearity of chroma amplitude
P10
Grad-Green
P11
Grad-Blue
P12
Grad-Gray
P13
Color Bar
Color Bar
8 vertical bars:
White, Yellow, Cyan,
Green, Magenta,
Red, Blue and Black
- Overall color performance
- Burst keying
- Subcarrier regeneration
- Matrix circuit check
- RGB amplifiers
- Color delay versus B/W
signal saturation
P14
Gray -8
Grayscale
Full screen linear
staircase signal to
white
Steps:
8/16/32/64/256
- Brig contrast circuitry
- Grayscale tracking
- Linearity of video amplifier
P15
Gray-16
P16
Gray-32
P17
Gray-64
P18
Gray-256
P19
V-Line On/
Off
Black White
Vertical
Full screen linear
vertical bar signal
with black/white
intervals of 1 and 12
pixels
- Check bandwidth and phase
behavior of a video
transmission
- Verify video amplifier
- Verify color temperature
P20
BW-12
