Kenwood KRF-V7773D Service Manual page 15

Adjustment of Sub Color and Contrast (X35, VR1, VR2)
No. ITEM
1 SUB COLOR
2
CONTRAST
INSTRUMENTS CONNECTION
PATTERN
GENERA-
TOR
INPUT SIGNAL : 75% COLOR BAR SIGNAL
PARA METER
mV
LUMINANCE LEVEL
IRE
mV
CHROMA LEVEL
IRE
+V
CHROMA PHASE
(deg)
-V
0.825Vp-p
ADJUSTMENT OUTPUT SIGNAL :
FIG.1
0.825Vp-p
FIG.2
0.525Vp-p
ADJUSTMENT
INPUT
SETTINGS
PAL
75 COLOR BAR
NO SET UP)
PAL
75 COLOR BAR
NO SET UP)
RECEIVER
DUMMY
75
WHITE YELLO CYAN
525 465 368
0 470 664
167 283
193 77
525
Y LEVEL (VR )
Cb LEVEL (VR1
KRF-V7773D/V7773D-B/V9993D
OUTPUT ALIGNMENT
SETTINGS POINTS
Connect a component video
output(Y) to oscilloscope
VR2
with 75 .
Connect a component video
output(Cb,Cr) to oscilloscope
VR1
with 75 .
OSCILLOSCOPE
GREEN MAGENTA RED
308 217 157
620 620 664
241 61 103
119 299 257
P.C.B (X35-2230-10)
VR2
Cr LEVEL
ALIGNMENT
FOR
(Adjust an amplitude
of video signal.)
0.825Vp p
(Adjust an amplitude
of video signal.)
0.525Vp p
BLUE
60
470
347
13
VR1 CN1
(VR1
FIG.
FIG.1
FIG.2
15