30
d)
Adjustment procedure 2
(NORMAL SCAN (HD 16:9, SD 4:3/16:9)
Adjust HEIGHT and WIDTH for HDTV 16:9 and
SDTV 4:3/16:9 NORMAL SCAN as follows.
①
Input signal
Check the MENU 1 format is set properly to the
signal format to be changed.
For details of the format setting, refer to 4.7(3) in
this manual.
Input a crosshatch signal or select the crosshatch
internal TEST signal.
②
Adjusting HEIGHT and WIDTH
Set the desired aspect using the ASPECT switch,
and set NORMAL SCAN using the
SCAN
switch.
Set the
MARKER
switch to ON, and select the
100%+93% marker.
Adjust WIDTH so that the 93% marker size becomes
the NORMAL SCAN size in the following table.
Adjust HEIGHT so that the vertical diameter
becomes identical to the horizontal diameter. If you
are working with a signal not having a circle pattern,
adjust the 93% marker size so that it becomes
identical to the size shown below as a guide.
<NORMAL SCAN Sizes>
ASPECT
HD/SD
HEIGHT
WIDTH
4 : 3
SD
257mm
343mm
16 : 9
SD/HD
193mm
343mm
* This table shows the 93% marker size.
* Before proceeding to adjust another SCAN size, be
sure to press the CHANGE PRESET switch now
to store the current data.
e)
Adjustment procedure 3
(HDTV 4:3 SCAN)
Adjust HDTV 4:3 SCAN as follows.
①
Input signal
Check the MENU 1 format is set properly to the
signal format to be changed.
For details of the format setting, refer to 4.7(3) in
this manual.
Input a crosshatch signal or select the crosshatch
internal TEST signal.
②
Adjusting HEIGHT and WIDTH
Set the desired aspect using the
ASPECT
switch.
The
SCAN
switch does not function.
Set the
MARKER
switch to ON, and select the 4:3
marker.
HEIGHT
WIDHT
HEIGHT
WIDHT
〈SDTV4:3(NORMAL)Size〉
〈SD/HD 16:9(NORMAL)Size〉
93% area
93% area
(10) Adjusting the moiré effect
a)
Moiré effect
Adjust the moiré effect that is caused by the
correlation between the screen size and the CRT
dot pitch. Press the EXPAND switch and the
adjustment item will show up.
The preset data varies from format to format. It is
also different between 4:3 and 16:9 as well as
between NORMAL and UNDERSCAN.
b)
Precaution
The moiré effect is also saved in the data for each
signal format. During the setting, therefore, do not
d the following switchings. Otherwise a different
data from the previously set one may be called and
the data in progress will be cleared.
Channel selection
Input signal format switching
Scan switching
Aspect ratio switching
c)
Procedure
①
Input signal
Make sure the MENU 1 format is properly set for
a desired signal format. The format settings are
referred to in Item 4.7(3).
Feed the 50% full white signal. Or select the 50%
full white signal out of the built-in test signals.
②
Adjusting the moiré effect
1. Readjust the setting so that the streaking
pattern should be minimized.
<NG>
<OK>
* This table shows the 4:3 marker size.
HEIGHT
WIDHT
〈HDTV4:3 Size〉
4:3 Marker
Adjust WIDTH so that the inner size of the 4:3
area marker becomes the size in the following table.
ASPECT
HD/SD
HEIGHT
WIDTH
4 : 3
HD
263mm
350mm
<HDTV 4:3 SCAN size guideline>
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