Sony KP-48V75 Service Manual page 43

KP-48V75/53V75/61V75
RM-Y903
RM-Y903 RM-Y903
[GREEN SUB ADJUSTMENT]
SCREEN CENTER SECTION GREEN VERTICAL LINE
ADJUSTMENT
1. Finely adjust with GH CENT, GH BOW, GH SKEW.
Adjust by watching out for the GH CENT screen center sec-
tion.
2. RGH 4TH BOW adjustment
Correct the corner distortion that could not be adjusted away
with the GH 4BOW adjustment.
Watch out only for the
GH CENT center point.
Watch the vertical center line.
GH CENT
GH BOW
GH SKEW
GH 4BOW
SCREEN CENTER SECTION GREEN HORIZONTAL LINE
ADJUSTMENT
1. Finely adjust the center position of the vertical line at the
center of the screen with GV CENT.
2. Correct the tilt and bow of the horizontal line at the center of
the screen with GV SKEW and GV BOW.
Watch the horizontal
center line.
Watch out only for the GV Watch out only for the
GV CENT center point.
CENT center point.
GV CENT
GV SKEW
GV BOW
GREEN SIZE AND LINEARITY ADJUSTMENT
1. Balance the sizes at both sides of the center section of the
screen with RGH MLIN.
2. Balance the sizes on both end sections of the screen with
RGH LIN.
3. While tracking, adjust with RGH MLIN and RGH LIN so
that the sizes of the horizontal line at the center of the screen
are symmetrical left and right.
– 42 –
MLIN
LIN