Fluke PM5414V - Handbuch (Seite 21)

PM 5414 V OPERATING INSTRUCTIONS 3-7
Signal Content Pushbutton B/W Color VCR Use for Checking
9. VCR pattern
(4 horizontal bars)
VCR
1. one horizontal bar white
1 0 0 % Y
2. definition lines
0.8 MHz to 4.8 MHz
3. Saturation step signal
8 steps of linear
decreasing chroma (R-Y)
4. Moving white field
in black bar
White level
Amplitude response, resolution
of VCR and other video recorders
Linearity of chroma amplitude
Sensitivity color amplitude
Color AGC
Ratio chroma/lumlnance
Writing current
Recording performance
Slow/quick-motlon
Still picture
10 . Color bar
full screen
Amplitudes
COLOR
BAR
100/0/75/0
100/0/100/25
77/7.5/77/7.5
TV system
B,G,H,N
I
M
Color bar, with white
pattern selectable
Overall color performance
Burst keying
Subcarrier regenerator
PAL identification circuit
Matrix circuit
RGB amplifiers
Delay color versus B/W signal
Saturation check
562.5 kHz interference check
11
.
DEM pattern
DEM
1. PAL
4 horizontal bars
bar 1 to 3 special coded
bar 4: reference grey 50 % Y
(PAL M grey 54 % Y)
2. NTSC
3 horizontal bars with
NTSC burst
bar 1: color bar
bar 2: special coded
bar 3: white/black
PAL delay-line, amplitude and
phase error detection
PAL demodulators
Subcarrier frequency
phase (R-Y) - (B-Y)
G-Y-matrix
PAL switch
NTSC demodulators, sub­
carrier frequency phase of
I and Q-modulator
G-Y-matrIx
12. Purity patterns
3 primary colors:
Red
Green
Blue
3 complementary colors:
Magenta
Yellow
Cyan
Additional white (100 % Y)
Black
PURITY
Purity checks and adjustment
Interference between sound and
chroma carrier
Color A.G.C.
Chroma writing current of
video recorders
White setting
Synchronization