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[focus Adjustment] - Sony BVM-D32E1WA Maintenance Manual

Trinitron color video monitor.
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[Focus adjustment]

1. Enter "0", "9" and "3" using the INPUT switch of jig
set (BKM-10R) to show all-white display on screen.
2. Adjust brightness using CONT knob of the jig set.
100 ± 5 (cd/m
2
)
3. Enter "1" using the INPUT switch of the jig set
(BKM-10R) to select "1CH".
The cross-hatch signal (1080/60i 33 kHz) of MODE 1
can also be used.
Note
* To adjust the FOCUS control, select the preset value
(128) for the following DF adjustment data.
DF SIDE
DF CORNER
DF SIDE PHASE
DF T&B PHASE
DF T&B
4. Connect the HD monoscope signal into the ANALOG
Y/G IN terminal on the BK board.
5. Observe wedges at the center of screen. Adjust [F1] of
the focus pack for the optimum focus in the horizontal
direction. Adjust [F1] so that all of the three points in
the left as shown have the good focus balance.
Adjust while maintaining the focus at the three points
in the left.
6. Adjust [F2] of the focus pack for the optimum focus in
the vertical direction.
1000 TV of the horizontal resolution should be
recognized in the minimum.
7. Repeat steps 5 and 6 until the best focus in all steps of
5 and 6 at the same time.
3-2
F2
Fig. 1-1
8. Connect the cross-hatch signal (1080/60i, 33 kHz ) of
MODE 1 to the ANALOG Y/G IN terminal on the BK
board.
9. Perform the following DF adjustment.
SIDE, SIDE PHASE, CORNER, T&B, T&B PHASE
Perform adjustment so that cross-hatch lines have the
same width as that of the center of the screen.
In the case if uniformity is extremely poor, adjust
D.F.X and D.F.Y for slightly poor performance so that
poor uniformity is not significant.
10. Copy the data of step 9 to MODEs 2 through 4, 7
through 10, 15 through 18, 19 through 22 and 25
through 28. (Table 1)
11. Connect the cross-hatch signal (480/60i, 15 KHz) of
MODE 11 to the ANALOG Y/G IN terminal on the
BK board and perform step 9.
12. Copy the data of step 11 to MODEs 12 through 14 and
MODEs 29 through 32. (Table 1)
13. Connect the cross-hatch signal (720/60P, 45 KHz) of
MODE 5 to the ANALOG Y/G IN terminal on the BK
board and perform step 9.
14. Copy the data of step 13 to MODEs 6, 23 and 24.
(Table 1)
15. Apply locking paint to [F1] and [F2] of focus pack.
F1
BVM-D32E1WA/D32E1WE/D32E1WU

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