2-Pole Magnet Adjustment; Green, Red And Blue Focus Adjustment; Green, Red And Blue Lens Focus Adjustment; Green, Red And Blue Electrical Focus Adjustment - Sony KP-48PS1 Service Manual

KP-48PS1/53PS1/61PS1
48PS1K/53PS1K/61PS1K

4-5. 2-POLE MAGNET ADJUSTMENT

1. Receive the Dot signal.
2. Place the caps on the red and blue lens so that only the green
color is shown.
3. Turn the green focus VR on the focus pack to the right and
set to over focus 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)
5. Align the green focus VR and set for just (precise) focus.
6. Perform the same alignment for red and blue.
Use the center dot
4-6. 4-POLE MAGNET ADJUSTMENT
1. Receive the Dot signal.
2. Place the caps on the red and blue lens so that only the green
color is shown.
3. Turn the green focus VR on the focus pack to the left and set
to under focus to enlarge the spot.
4. Now align the 4-Pole Magnet so that the enlarged spot be-
comes a perfect circle.
5. Perform the same alignment for red and blue.
Use the center dot
K
RM-892
Fig. 4-6
NG OK NG
Fig. 4-7
4-7. GREEN, RED AND BLUE FOCUS
ADJUSTMENT

4-7-1. Green, Red and Blue Lens Focus Adjustment

1. Receive the Monoscope signal.
2. Place the caps on the red and blue lens so that only the green
color is shown.
3. Rotate the green lens and adjust to obtain the best lens focus
at the center area.
4. Fix lens screw.
5. Repeat above process for red and blue.
4-7-2. Green, Red and Blue Electrical Focus
Adjustment
1. Receive the Monoscope signal.
2. Place the caps on the red and blue lens so that only the green
color is shown.
3. Rotate the green focus VR on the focus pack and adjust to
obtain the best electrical focus in the top right corner, taking
care of center forcus is not NG. obtain a compromise be-
tween center and corner focus.
4. Repeat above process for red and blue.
Adjust Point
– 28 –
Fig. 4-8
Adjust Point
Fig. 4-9