[Focus Adjustment] - Sony BVM-D14H1E Maintenance Manual

[Focus Adjustment]

1. Connect the 1080/60i cross-hatch signal (see note) to
the ANALOG Y/G input connector.
Note: This is the 1125 (1080) cross-hatch signal.
2. Press the SHIFT button to set the SHIFT OFF. [The
LED (orange) on top of the button turns off.] Press the
UNDER SCAN button (
select the normal mode. [The green LED turns on.]
3. Set the initial (default) value to the following DF
adjustment data.
FOCUS AMP
FOCUS KEY
Note: This menu is located in the directory under the
DEFLECTION menu of the MAINTENANCE menu.
4. Adjust the FOUCS 1 control (horizontal focus adjust-
ment) and the FOUCS 2 control (vertical focus
adjustment) until the center of the screen has the
optimum focus.
5. Connect the 1080/60i monoscope signal to the ANA-
LOG Y/G input connector.
6. Check that the horizontal resolution higher than the
specifications can be recognized.
Specifications: 600 TV lines or more
7. Connect the 1080/60i cross-hatch signal to the ANA-
LOG Y/G input connector.
8. Adjust the following DF adjustment data until the
thickness of the cross-hatch lines at the corners of
picture have the same thickness as those in the center
of screen.
FOCUS AMP
FOCUS KEY
Note: If the uniformity is extremely poor, compromise
so that the FOCUS AMP is not adjusted to the
best focus but is adjusted to obtain the reason-
able uniformity and good focus at the same
time.
9. Copy the adjustment data that is obtained in step 8 to
the MODE2 to MODE4, MODE7 to MODE10,
MODE15 to MODE18, MODE21 to MODE24,
MODE29 to MODE32 in this order.
10. Connect the 480/60i cross-hatch signal (see note) to
the ANALOG Y/G input connector.
Note: NTSC cross-hatch signal
11. Adjust the following DF adjustment data until the
thickness of the cross-hatch lines at the corners of
picture have the same thickness as those in the center
of screen.
FOCUS AMP
FOCUS KEY
BVM-D14H1U/D14H5U/D14H1E/D14H5E/D14H1A/D14H5A
) to its OFF position to
: 27
: 07
Note: If the uniformity is extremely poor, compromise
so that the FOCUS AMP is not adjusted to the
best focus but is adjusted to obtain the reason-
able uniformity and good focus at the same
time.
12. Copy the adjustment data that is obtained in step 11 to
the MODE11, MODE12, MODE14 and MODE25 to
MODE28 in this order.
13. Connect the 720/60p cross-hatch signal to the ANA-
LOG Y/G input connector.
14. Adjust the following DF adjustment data until the
thickness of the cross-hatch lines at the corners of
picture have the same thickness as those in the center
of screen.
FOCUS AMP
FOCUS KEY
Note: If the uniformity is extremely poor, compromise
so that the FOCUS AMP is not adjusted to the
best focus but is adjusted to obtain the reason-
able uniformity and good focus at the same
time.
15. Copy the adjustment data that is obtained in step 14 to
the MODE6, MODE19 and MODE20 in this order.
FOCUS 1
FOCUS 2
Fig. 1-1
3-3