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c. Adjustment steps
The following adjustment steps are for a certain signal format.
Other formats can also be set in the same manner.
1. Input signal
First, make sure that the MENU1 format setting matches up
with a signal format to be changed. For the format setting,
refer to 4-5 (3).
For the input signal, apply a signal (monoscope signal, etc.)
that displays video image on the whole effective screen area.
2. H/V CENT adjustment
• Go into the NORMAL SCAN mode using the U-SCAN
switch and display the 10-division crosshatch using the
MARK switch.
• Adjust the horizontal and vertical directions using H.CENT
and V.CENT respectively until the marker is uniform
laterally and longitudinally.
• In the adjustment step 3 below, the mode is switched to
UNDER SCAN using the U-SCAN switch. Therefore, store
the data temporarily by pressing the MANU/ENT switch
before proceeding to the step 3.
< NG >
3. H.PHASE adjustment
• Switch the mode to UNDER SCAN using the U-SCAN
switch and display the 100% marker using the MARK
switch.
• Go into the H.PHASE adjustment mode using the PRE
switch and adjust the phase until the video image frame is
aligned with the 100% marker.
< NG >
4. When continuing the adjustment steps 2 and 3 in different
formats, register data temporarily after other data changes
are completed and switch the signal format to a different one.
(6) Screen distortion adjustment
a. Screen distortion
There are SIDE PIN and TRAPEZOID designed to adjust screen
distortions. Each adjustment can be made in the appropriate
adjustment mode selected with the PRE switch. For these two
types of preset data, as in the case of adjustment items in (6),
different data can be set separately in each signal format.
< OK >
< OK >
27
b. Caution
For SIDE PIN or TRAPEZOID adjustments, as in (6) above,
separate data is stored in each signal format. Do not perform
the switching below during data change.
• Channel switching
• Input signal format change
• SCAN switching
• ASPECT switching
If any switching above is done, data in a format different from
the currently set one will be invoked and the data that is being
changed will be cleared. When SIDE PIN or TRAPEZOID
data is being changed, therefore, take care not to perform any
switching above before the changed data is registered.
c. Adjustment steps
1. Input signal
First, make sure that the MENU1 FORMAT setting matches
up with a signal format to be changed. For the format setting,
refer to 4-5 (3).
For the input signal, apply a crosshatch signal.
2. Trapezoidal distortion adjustment
Go into the TRAPEZOID adjustment mode using the PRE
switch and adjust trapezoidal distortions as shown in the
figure below.
< NG >
3. Side pin adjustment
Go into the SIDE PIN adjustment mode and adjust side pin
distortions as shown in the figure below.
< NG >
4. When continuing the adjustment steps 2 and 3 in different
formats, register data temporarily after other data changes
are completed and switch the signal format to a different one.
< OK >
< OK >
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