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Sony KDP-57XBR2 Service Manual page 209

Digital high definition projection tv
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8.
Change the pattern from dots to cross-
hatch.
9.
If necessary, adjust the green CRT
centering magnet to center the pattern
horizontally and vertically. This is just a
rough adjustment. Fine adjustment will
be made later using the service mode.
10.
Reconfirm the 2-pole magnet
adjustment after moving the centering
magnet.
11.
Repeat steps 4 through 10 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.
12.
Repeat steps 4 through 10 for the blue
CRT, except now you will cover the
green and red 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.
13.
Lock the focus controls with locking
paint (if no other mechanical
adjustments are being made).
Note: If lens caps are unavailable, you
can cut off the unnecessary colors in the
service mode by individually changing
the data in adjustment category "2150P-
2" , item # 1"RGBS". To display blue
only, change the data to "1", to display
green only, change the data to "2", to
display red only, change the data to "4".
All colors are displayed when the data is
set to "7".
1-6 4-POLE MAGNET
ADJUSTMENT
1.
Enter the service mode.
2.
Select display mode to WIDE ZOOM
and picture mode PRO, and while in the
adjustment menu press RESET on the
remote to restore the PRO mode factory
defaults. Then set the picture to
maximum, VM (velocity modulation) off.
3.
Display a dot pattern.
4.
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).
5.
Turn the green focus control on the
focus block clockwise to enlarge the
dot.
6.
Adjust the 4-pole magnet so that the
enlarged spot in the center of the screen
becomes a perfect circle.
7.
Adjust the green focus control on the
focus block and set it for the best focus.
8.
Repeat steps 4 through 7 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.
9.
Repeat steps 4 through 7 for the blue
CRT, except now you will cover the
green and red 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.
However, for the blue CRT do not
make the enlarged spot a perfect circle
as indicated in step # 6; instead, adjust
the 4-pole magnet so that the height of
the enlarged blue spot in the center of
the screen is approx. 1.2 times the width
of the spot.
A
A
B
B
Red and green
Blue dot: A = 1.2 B
dots: A = B
Page 6

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