Sony KDP-51WS550 - 51" High Definition Projection Tv Service Manual Download Page 18

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KDP-51WS550/57WS550/65WS550

2-6. CENTERING MAGNET ADJUSTMENT

1.  Set the mode to PRO.
2.  Receive the monoscope signal.
3.  Cover the red and blue CRT lenses with lens caps to allow only green

to show (or use the method shown in the note below for turning off the

CRTs individually without using lens caps).

4. Adjust the green CRT’s centering magnet to put the center of the

monoscope signal to the center of the screen.

5. Repeat steps 1 through 4 for the red CRT except now you will cover

the green and blue CRT lenses with lens caps to allow only red to

show (or use the method shown in the note below for turning off the

CRTs individually without using lens caps) and you will adjust the red

centering magnet.

6. Repeat steps 1 through 4 for the blue CRT except now you will cover

the red and green CRT lenses with lens caps to allow only blue to

show (or use the method shown in the note below for turning off the

CRTs individually without using lens caps) and you will adjust the blue

centering magnet.

7. After 2-Pole and 4-Pole adjustment, entering magnet adjustment

needs to be confirmed. If centering magnet is re-adjusted, then 2-Pole

magnet will need to be confirmed.

Note:

If lens caps are unavailable, you can cut off the unnecessary color

beams by controlling the service mode MCP-RON, GON, BON.

2-7. 2-POLE MAGNET ADJUSTMENT

1.  Set the mode to PRO and picture to MAX.
2.  Receive the 100IRE 1080i Dot signal.
3.  Cover the red and blue CRT lenses with lens caps to allow only green

to show (or use the method shown in the note below for turning off the

CRTs individually without using lens caps).

4. Turn the focus VR on the focus block to the left (counter clockwise)

and set it to overfocus to enlarge the spot.

5. Adjust the CRT’s 2-pole magnet so that the small bright spot is in the

center.

6. Align the focus VR on the focus block and set it for the best focus.
7. Repeat steps 1 through 6 for the red CRT covering the green and

blue CRT lenses with lens caps to allow only red to show (or use the

method shown in the note below for turning off the CRTs individually

without using lens caps) and you will adjust the red focus control on

the focus block.

8. Repeat steps 1 through 6 for the blue CRT covering the red and green

CRT lenses with lens caps to allow only blue to show (or use the

method shown in the note below for turning off the CRTs individually

without using lens caps) and you will adjust the blue focus control on

the focus block.

Note:

If lens caps are unavailable, you can cut off the unnecessary color

beams by controlling the service mode MCP-RON, GON, BON.

2-8. 4-POLE MAGNET ADJUSTMENT

1.  Set the mode to VIVID and WIDE mode = Zoom, VM:Off.
2.  Receive the 100IRE 1080i Dot signal.
3.  Cover the red and blue CRT lenses with lens caps to allow only green

to show (or use the method shown in the note below for turning off the

CRTs individually without using lens caps).

4. Turn the (green) focus VR on the focus block to the right (clockwise)

and set it to under-focus to reduce the spot.

5. Adjust the 4-pole magnet so that the small spot in the center of the

screen becomes round for green and red.

6. Adjust the blue spot to an oval shape X:Y=1:1
7. Repeat steps 1 through 6 for the red CRT except now you will cover

the green and blue CRT lenses with lens caps to allow only red to

show (or use the method shown in the note below for turning off the

CRTs individually without using lens caps) and you will adjust the red

focus control on the focus block.

8. Repeat steps 1 through 6 for the blue CRT except now you will cover

the red and green CRT lenses with lens caps to allow only blue to

show (or use the method shown in the note below for turning off the

CRTs individually without using lens caps) and you will adjust the blue

focus control on the focus block.

Note:

If lens caps are unavailable, you can cut off the unnecessary color

beams by controlling the service mode MCP-RON, GON, BON.

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

Use the center dot

2-9. DEFOCUS ADJUSTMENT (BLUE)

Note:

Adjust the blue dot to be slightly larger than red and green dots.

This adjustment provides a more pleasing picture to the customer.

1.  Set the mode to PRO, PICTURE : Max, COLOR TEMP : Cool.
2.  Receive the 100IRE 1080i Dot signal.
3.  Cover the red and green CRT lenses with lens caps to allow only blue

to show (or use the method shown in the note below for turning off the

CRTs individually without using lens caps).

4. Turn the blue focus VR on the focus block to the right (clockwise) until

blue spot is in focus.

5. Change mode to VIVID to confirm Flare level is minimal using cross

hatch signal.

6. Set the generator to an all white signal and check uniformity.

Note:

If lens caps are unavailable, you can cut off the unnecessary color

beams by controlling the service mode MCP-RON, GON, BON.

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