Adjustment - Kenwood DV-4050-B Service Manual

No. ITEM
BRIGHTNESS
1
2 CHROM LEVEL
3 Cb LEVEL
4 Cr LEVEL
[mV]
white
714
yellow
714
(100IRE)
cyan
641
green
516
443
324
0
4.7µs
Y
-2.86
FIG. 1
[mV]
324
215
109
0
0
-215
-324
-324
Cb
FIG. 3

ADJUSTMENT

INPUT
OUTPUT SETTING
SETTING
Connect the oscilloscope to
100% COLOR
Y output with 75-ohms
BAR DISC
Connect the oscilloscope to
100% COLOR
COMPOSIT output with 75-
BAR DISC
ohms resistor
Connect the oscilloscope to
100% COLOR
Cb output with 75-ohms
BAR DISC
Connect the oscilloscope to
100% COLOR
Cr output with 75-ohms
BAR DISC
magenta
red
blue 1000mV±30mV
252
black
127
54
324
648mV
0
±14mV
-109
DV-4050-B/DVF-R6030-B
ALIGNMENT
POINT
VR1
resistor
VR2
VR3
resistor
VR4
resistor
IRE
120
100
285mV
0
±14mV
-40
[mV]
324
53
0
0
-324
-324
ALIGNMENT
FOR
Y-signal =
1000mV±30mV
Chrom-signal =
285mV±14mV
Cb-signal =
648mV±14mV
Cr-signal =
648mV±14mV
Peak white
FIG. 2
324
271
648mV
0
±14mV
-53
-271
Cr
FIG. 4
FIG.
FIG.1.
FIG.2.
FIG.3.
FIG.4.
Blank
6