2-Pole Magnet Adjustment; Defocus Adjustment (Blue); Green And Red Focus Adjustment; Green And Red Lens Focus Adjustment - Sony KP-EF41ME Service Manual

KP-EF41HK/ME/MN/SN, EF48HK/ME/MN/SN,
KP-EF53HK/ME/MN/SN, EF61HK/ME/MN/SN

3-5. 2-POLE MAGNET ADJUSTMENT

1. Set in service mode.
2. Set to receive the Dot signal.
3. Place the caps on the red and blue lens so that only the green
color is shown.
4. Turn the green VR on the focus block to the right and set to
overfocus to enlarge the spot.
5. Now align the 2-Pole Magnet so that the enlarged spot is in
the center of the Just Focus spot.
6. Align the green focus VR and set for just (precise) focus.
7. Perform the same alignment for red and blue.
Use the center dot
3-6. 4-POLE MAGNET ADJUSTMENT
1. Set in service mode.
2. Set to receive the Dot signal.
3. Place the caps on the red and blue lens so that only the green
color is shown.
4. Turn the green VR on the focus block to the left and set to
underfocus to enlarge the spot.
5. Now align the 4-Pole Magnet so that the enlarged spot be-
comes a perfect circle.
6. Perform the same alignment for red and blue.
Use the center dot

3-7. DEFOCUS ADJUSTMENT (Blue)

1. Receive the Dot signal.
2. Place the caps on the red and green lens so that only the blue
color is shown.
3. Rotate the blue focus volume on the focus pack and adjust to
obtain best electrical focus.
4. Rotate Blue focus volume of focus pack clocwise, so that
diameter of the Dot see Caution.
Fig. 3-7
x
y
x : y = 1 : 2
Fig. 3-8
RM-871
[Change Blue Defocus]
Inch
L

3-8. GREEN AND RED FOCUS ADJUSTMENT

3-8-1. Green and Red Lens Focus Adjustment

1) Input a monoscope signal.
2) Place a lens cover over Red and Blue lenses and project only
Green.
3) Rotate the Green lens and ajust to obtain the best lens focus.
4) Fix lens screw.
5) Repeat above process for Red.

3-8-2. Green and Red Electrical Focus Adjustment

1) Input a monoscope signal.
2) Project only Green.
3) Rotate the green focus volume on the focus pack and adjust
to obtain an optimal electrical focus in the top right corner,
taking care of center focus is not NG. obtain a compromise
between center and corner focus.
4) Repeat above process for Red.
– 32 –
Lmm Max.
41'' 48" 53''
7 8 9
Fig. 3-10
Adjust Point
Fig. 3-11
Adjust Point
Fig. 3-12
61''
10