Read Sony KP-44PX3 / KP-44PX3U (serv.man2) Service Manual online
- 3 -
KP-44PX3
RM-945
4-5-3. Adjustment of 4-Pole magnets
Fig. 4-8
Adjust Point : Circular Areas
4-6. GREEN, RED AND BLUE FOCUS
ADJUSTMENT
4-6-1. Green, Red and Blue Lens Focus
Adjustment
Adjustment
1.
Receive the Monoscope signal and set PICTURE to
minimum BRIGHTNESS to 50%.
minimum BRIGHTNESS to 50%.
2.
Place the caps on the red and blue lens so that only the
green color is shown.
green color is shown.
3.
Rotate the green lens and adjust to obtain the best lens
focus at the center area.
focus at the center area.
4.
Fix lens screw.
5.
Repeat above process for red and blue.
4-6-2. Green, Red and Blue Electrical Focus
Adjustment
Adjustment
1.
Receive the Monoscope signal and set PICTURE to
minimum BRIGHTNESS to 50%.
minimum BRIGHTNESS to 50%.
2.
Place the caps on the red and blue lens so that only the
green color is shown.
green color is shown.
3.
Rotate the green focus VR on the focus pack and adjust
to obtain the best electrical focus in all areas.
to obtain the best electrical focus in all areas.
4.
Repeat above process for red and blue.
4-5. 2-4-POLE MAGNET ADJUSTMENT
4-5-1. Adjustment of DY centering magnet
1.
Receive SPCB signal.
2.
Place the caps on the red and blue lens so that only the
green color is shown.
green color is shown.
3.
Adjust green centre magnet so that the centre of SPCB is in
the centre of the screen.
the centre of the screen.
4.
Perform the same adjustment for red and blue.
Note: PJE data must be a regulation value.
4-5-2. Adjustment of 2-Pole magnets
1.
Receive the Dot-Crosshatch signal.
2.
Place the caps on the red and blue lens so that only the
green color is shown.
green color is shown.
3.
Turn the green focus VR on the focus pack counter-
clockwise to enlarge the spot.
clockwise to enlarge the spot.
4.
Now align the 2-Pole Magnet so that the enlarged spot is in
the center of the just focus spot.
(center of the dot doesn't move)
the center of the just focus spot.
(center of the dot doesn't move)
5.
Align the green focus VR and set for just (precise) focus.
6.
Check if the picture centre has moved. If so, repeat
procedure from DY centering magnet until the centre is
fixed.
procedure from DY centering magnet until the centre is
fixed.
7.
Perform the same alignment for red and blue.
1.
Receive the Dot-Crosshatch signal.
2.
Place the caps on the red and blue lens so that only the
green color is shown.
green color is shown.
3.
Turn the green focus VR on the focus pack clockwise to
enlarge the spot.
enlarge the spot.
4.
Now align the 4-Pole Magnet so that the enlarged spot
becomes a perfect circle.
becomes a perfect circle.
5.
Perform the same alignment for red and blue.
6.
Turn the focus pack VR’s counter-clockwise and “Just Focus”
Red, Green and Blue.
Red, Green and Blue.
Note: Adjustment point for R,G is the centre of the screen.
Adjustment point for B is the left side of the screen.
Adjustment point for B is the left side of the screen.
①
jus t
focus
focus
de-focus
m oving
not-
m oving
m oving
NG
OK
If necessary use the 4-pole magnet to make the spot
roughly circular.
roughly circular.
How to use 2-4-pole magnets
Structure of 2,4 - pole magnets
Upper : 4-pole Magnets
Lower : 2-pole Magnets
Lower : 2-pole Magnets
How to rotate 2-pole:
1)Horizontal or Vertical moving
1)Horizontal or Vertical moving
How to rotate 4-pole
1)Changing Horizontal or Vertical length
2)Moving rotation
2)Moving rotation
Just focus De-Focus
*2.4-Pole Magnets
Torque:Spec 14kgf.cm.+/-1kgf.cm
Torque:Spec 14kgf.cm.+/-1kgf.cm
1①
2
NG
OK
NG OK NG
Amended
page
page
Click on the first or last page to see other KP-44PX3 / KP-44PX3U (serv.man2) service manuals if exist.