Sharp XL-3000V - Manual (Page 14)

XL-3000V
– 14 –
CD SECTION
Since this CD system incorporates the following automatic
adjustment function, when the pickup is replaced, it is not
necessary to readjust it.
VIDEO CD SECTION
A-BEX
TEST VIDEO CD
Disc Adjusting
Point
Instrument
Connection
CD Stop TC100V 27.00000 MHz 1 of R163V and
±
160 Hz 2 of C183V
•••••
Measurement of oscillation frequency
•••••
Checking of video output signal
Checking of color bar
Disc Adjusting Point Instrument
Connection
Track 2 Video output terminal Chroma Peak Level
100
±
15 IRE
Model No.
TVD-581
TVD-581A
Specified Value
SET
VIideo Output Terminal
75 ohms
GND
Vectorscope
Waveform monitor
or oscilloscope
SET
Video Output Terminal
Video Input Terminal
TV
Color bar signal
waveform
100 100
88.5
75
70
75
41.5
33.5
5
0
-13.5
-25 -25
100 IRE
(0.714V)
(1V)
(0.286V)
140 IRE
Horizontal
sync signal
40 IRE
40 IRE
Color Burst
20
-20
-40
Blue Red Green Magenta Cyan Yellow Gray
(59.94Hz/NTSC) IH
TV monitor
Blue Red Green Magenta Cyan Yellow Gray
Figure 14-1 ADJUSTMENT POINTS
Figure 14-2 Measurement of oscillation frequency
Figure 14-3 Checking of video output signal
Figure 14-4
Figure 14-5
IC14V
IC15V
R163V
C183V
1 PCLK2X
2 GND
TC100V
X1V
VIDEO PWB-D