(No.YA263)1-27
4.9.3 DEFLECTION CIRCUIT
There are 3 aspect modes ( 1.
FULL
, 2.
PANORAMIC
, 3.
SUBTITLE
) of the adjustment.
Depending upon the kind of signals ( Vertical frequency 100Hz i / 120Hz i).
100Hz i is a signal that is output to a screen when a 50Hz signal is input to a television set. It is an interlace-scanned picture of 100Hz.
120Hz i is a signal that is output to a screen when a 60Hz signal is input to a television set. It is an inerlace-scanned picture of 120Hz.
NOTE :
• Do not adjust PANORAMIC & SUBTITLE mode.
• At first the adjustment in 100Hz FULL mode should be done, then the data for the other aspect mode is corrected in the respective
value at the same time. And confirm the deflection adjustment initial setting value in 60Hz (NTSC EXT mode) FULL mode. If the
adjustment in 100Hz each aspect mode has been done and stored, the data for the same aspect modes in 60Hz is corrected in
the respective value. Only the data for the other aspect mode in 60Hz is corrected for itself.
•
When the 100Hz FULL mode has been established, the setting of other modes will be done automatically. However, if the
picture quality has not been optimized, adjust each mode again, respectively.
•
The adjustment using the remote control unit is made on the basis of the initial setting values.
•
The setting values which adjust the screen to the optimum condition can be different from the initial setting values.
•
To switch aspect modes, use the [ZOOM] key of the remote controller.
Item
Measuring
instrument
Test point
Adjustment part
Description
V. POSITION
Signal
generator
Remote
control unit
[4.DEF]
1.V- SHIFT
(1) Receive the circle pattern signal of vertical frequency
50Hz (PAL).
(2) Set the ZOOM mode to FULL.
(3) Select
4.DEF
from the SERVICE MODE.
(4) Set the initial setting value of
< 1.V-SHIFT >
.
(5) Adjust vertical position to make
A
=
B
.
(6) Check the adjustment value above in other zoom
mode. If it is a wrong adjustment, readjust in FULL
mode and adjust by
< 1.V-SHIFT >
.
(7) Press the
[MENU]
key to memorize the set value.
V. SIZE
Signal
generator
Remote
control unit
[4.DEF]
2.V-SIZE
(1) Receive the cross hatch signal.
(2) Set the ZOOM mode to FULL.
(3) Select
4.DEF
from the SERVICE MODE.
(4) Set the initial setting value of
< 2.V-SIZE >
.
(5) Adjust to make sure that the vertical screen size of
the picture size is in the bellow table.
(6) Make sure that the vertical screen size of the each
ASPECT mode is in the below table.
(7) Press the
[MENU]
key to memorize the set value.
(8) Input a NTSC VIDEO signal (60Hz) from the EXT
terminal, and make sure that the vertical screen
size is in the table below.
(9)
(A)
(B)
ASPECT MODE
FULL
PANORAMIC SUBTITLE
SCREEN TOP
SCREEN BOTTOM
93%
93%
87%
87%
70%
83%
Vertical
screen
size
Picture
size
100%
Содержание AV-28H50SU
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