KP-51HW40, KP-57HW40 - Sony TV Service Manual (repair manual). Page 13

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1. Set the picture mode to “Pro”.
2. Receive the monoscope signal.
3. Cover the both red and blue picture lenses with the lens caps

to show only the green color.

4. Adjust the green centering magnet to put the center of the

monoscope signal to the center of the screen.

5. Adjust the red centering magnet in the same way.
6. Adjust the blue centering magnet in the same way.
Note: Instead of item 2 you can cut off the unnecessary color

beams by controlling the service mode 2150P-2 1 RGBS.

1. Set the picture mode to“Pro” and picture to MAX.
2. Receive the Dot signal.
3. Cover the both red and blue picture lenses with the lens caps

to show only the green color.

4. Turn the green focus VR on the focus block to the right and set

the spot will become smaller.

5. Adjust the 4-Pole Magnet so that the spot becomes round for

green and red.

6. Adjust blue spot to an oval shape X:Y=1:1.4 

- 

1.5.

Note: Instead of item 2 you can cut off the unnecessary color

beams by controlling the service mode 2150P-2 1 RGBS.

Note: Please adjust the blue dot to be slightly larger than red and

green dots. This adjustment provides a more pleasing picture
to the customer.

1. Select the picture mode to “Pro”.
2. Receive the Dot signal.
3. Cover the both red md green picture lenses with the lens caps

to show only the blue color.

4. Turn the blue focus VR on the focus block to right to make the

round dot elipical.

5. Check flare with high luminace signal, make sure flare is

minimal while dot shape is elipical.

6. Set generdtor to all white signal and check uniformity.
Note: Instead of item 3 you can cut off the unnecessary color

beams by controlling the service mode 2150P-2 1 RGBS.

/

x

y

x : y = 1:1.2  (BIue)
x : y = 1:1 (Green, Red)

Use the center dot

1. Set generator to crosshatch.
2. Cover the both red and blue picture lenses with the lens caps

to show only the green color.

3. Turn the green focus VR on the focus block to adjust to the

optimum focus point with the crosshatch signal.

4. Cover the both green and blue picture lenses with the lens caps

to show only the red color.

5. Turn the red focus VR on the focus block to adjust to the

optimum focus point with the crosshatch signal.

6. Cover the both green and red picture lenses with the lens caps

to show only the blue color.

7. Turn the blue focus VR on the focus block to adjust to the

optimum focus point with the crosshatch signal.

8. After adjusting the items 3-4. Focus Lens Adjustment, 3-6. 2-

Pole Magnet Adjustment and 3-7. 4-Pole Magnet Adjustment,
adjust again to the optimum focus point.

Note: Instead of items 2, 4 and 6, you can cut off the unnecessary

color beams by controlling the service mode 2150P-2 1
RGBS.

A

B

Lens

Minimize both A and B.

Center of crosshatch

Scanning line visible.

1. Set the picture mode to“Pro” and picture to MAX.
2. Receive the Dot signal.
3. Cover the both red and blue picture lenses with the lens caps

to show only the green color.

4. Turn the green focus VR on the focus block to the left and set

to overfocus to enlarge the spot.

5. Adjust 2-pole magnet so that the bright spot should be

centered.

6. Align the green focus VR and set for just (precise) focus.
7. Perform the same alignment for red and blue.
Note: Instead of item 2 you can cut off the unnecessary color

beams by controlling the service mode 2150P-2 1 RGBS.