[V Blanking Adjustment] - Sony BVM-D14H1E Maintenance Manual

8. Adjust the H PHASE data so that the monoscope
picture is positioned just in the center of the raster (so
that C = D).
9. Adjust the H BLK RIGHT data so that the horizontal
blanking is positioned 0 to 2 mm outside the right end
of the monoscope signal display area. (Fig. 1-7)
10. Adjust the H BLK LEFT data so that the horizontal
blanking is position 0 to 2 mm outside the left end of
the monoscope signal display area. (Fig. 1-7)
11. Return the H SIZE data to the original data size.
Signal display area
2 to 3 mm
H BLK WIDTH
Fig. 1-7
V BLK TOP
V BLK
V BLK
BOTTOM
Fig. 1-8
BVM-D14H1U/D14H5U/D14H1E/D14H5E/D14H1A/D14H5A
H BLK
H BLK PHASE

[V Blanking Adjustment]

. . . . . Preparation
1. Connect the monoscope signal of the signal formats
that are shown in the following table, to the ANALOG
Y/G input connector. Perform the V blanking adjust-
ment in the respective screen modes using the respec-
tive signal formats.
60 Hz system
Mode Signal format
MODE9 480/60p (525)
MODE13 480/60i (525)
50 Hz system
Mode Signal format
MODE23 575/50p (625)
MODE27 575/50i (625)
2. Increase the brightness by adjusting the BRIGHT
control so that blanking becomes visible on screen.
Note: The following adjustment menus are located in
the directory under the DEFLECTION menu of
the MAINTENANCE menu.
V BLK TOP
V BLK BOTTOM
V SIZE
V CENT
. . . . . V Blanking Adjustment
1. Press the SHIFT button to ON. [The LED (orange) on
top of the button turns on.]
2. Press the 16:9 OFF button [to turn off the LED
(orange)] to select the 4:3 mode.
3. Press the SHIFT button to OFF. [The LED (orange)
on top of the button turns off.]
4. Press the UNDER SCAN button (
position to select the under scan mode. [The green
LED turns on.]
5. Adjust the V SIZE data so that the 5% over-scan is
obtained.
6. Take note of the present V CENT data. After noting
present V CENT data, adjust V CENT so that the top
of the raster becomes visible.
7. Adjust the V BLK TOP data so that the vertical
blanking on top of the screen is positioned as closest as
possible to the signal display area.
8. Adjust V CENT so that the bottom of the raster
becomes visible.
9. Adjust the V BLK BOTTOM data so that the vertical
blanking on bottom of the screen is positioned as
closest as possible to the signal display area.
10. Return the V CENT data to the original data.
Screen mode
4 : 3 NORMAL
4 : 3 NORMAL
Screen mode
4 : 3 NORMAL
4 : 3 NORMAL
) to its ON
3-7