Read Sony KP-57WV600 (serv.man2) Service Manual online
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KP-57WV600
2-6. 2-POLE MAGNET ADJUSTMENT
1. Set the picture mode to PRO and picture to MAX.
2. Receive the Dot signal.
3. Cover the red and blue CRT lenses with lens caps to allow only green
2. Receive the 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 left (counter
clockwise) and set it to overfocus to enlarge the spot.
5. Adjust the green CRT’s 2-pole magnet so that the small bright spot is
in the center.
6. Align the green focus VR on the focus block and set it for the best
focus.
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 2170P-2 1 RGBS.
2-7. CENTERING MAGNET ADJUSTMENT
1. Set the picture mode to PRO.
2. Receive the monoscope signal.
3. Cover the red and blue CRT lenses with lens caps to allow only green
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.
Note: If lens caps are unavailable, you can cut off the unnecessary color
beams by controlling the service mode 2170P-2 1 RGBS.
2-8. 4-POLE MAGNET ADJUSTMENT
1. Set the picture mode to PRO and picture to MAX.
2. Receive the Dot signal.
3. Cover the red and blue CRT lenses with lens caps to allow only green
2. Receive the 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=1:1.2
7. Repeat steps 1 through 6 for the red CRT except now you will cover
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 2170P-2 1 RGBS.
x
y
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 picture mode to PRO.
2. Receive the Dot signal.
3. Cover the red and green CRT lenses with lens caps to allow only blue
2. Receive the 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) to
make the round dot elliptical.
5. Check the flare with a high luminance signal to make sure the flare is
minimal while the dot shape is elliptical.
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 2170P-2 1 RGBS.
x
y
x : y = 1:1.2 (BIue)
Use the center dot
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